UDR

SEC source: 0001664272-24-000028 · f4_a1e2k00000wi6dguat-live.xml · derivative · entry 1

CATTANACH KATHERINE A · CIK 0001359435 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 26,577

Underlying: Common Stock · 2,588 shares

Expires not disclosed

F2 · security: Represents Class 1 LTIP Units in United Dominion Realty, L.P., a Delaware limited partnership (the "UDR Partnership"). UDR, Inc. (the "Company") is the parent company and sole general partner of the UDR Partnership.

F3 · derivative.exercise_price: Subject to the conditions set forth in the Eleventh Amendment to the Amended and Restated Agreement of Limited Partnership of the UDR Partnership (the "Partnership Agreement") and subject to the vesting conditions specified with respect to each Class 1 LTIP Unit (as described in footnote 6 below), each Class 1 LTIP Unit may be converted, at the election of the holder, into a unit of limited partnership of the UDR Partnership (a "Partnership Common Unit"), provided that such Class 1 LTIP Unit has been outstanding for at least two years from the date of grant.

F4 · derivative.exercise_price: A holder of Partnership Common Units has the right to require the UDR Partnership to redeem all or a portion of the Partnership Common Units held by the holder in exchange for a cash payment based on the market value of the Company's Common Stock at the time of redemption, as defined in the Partnership Agreement (the "Cash Amount"). However, the UDR Partnership's obligation to pay the Cash Amount is subject the prior right of the Company to acquire such Partnership Common Units in exchange for either the Cash Amount or shares of the Company's Common Stock.

F5 · derivative.exercise_price: The Company, as the general partner of the UDR Partnership, may, in its sole discretion, purchase the Partnership Common Units by paying the limited partner either the Cash Amount or the REIT Share Amount (generally one share of the Company's Common Stock for each Partnership Common Unit), as such terms are defined in the Partnership Agreement. The right to convert the Class 1 LTIP Units into Partnership Common Units and the right to receive the Cash Amount or the REIT Share Amount (in the Company's sole discretion) in exchange for Partnership Common Units do not have expiration dates.

F6 · shares: The Class 1 LTIP Units shall vest on the first anniversary of the vesting commencement date, which is January 2, 2025.

F3 · derivative.exercise_date: Subject to the conditions set forth in the Eleventh Amendment to the Amended and Restated Agreement of Limited Partnership of the UDR Partnership (the "Partnership Agreement") and subject to the vesting conditions specified with respect to each Class 1 LTIP Unit (as described in footnote 6 below), each Class 1 LTIP Unit may be converted, at the election of the holder, into a unit of limited partnership of the UDR Partnership (a "Partnership Common Unit"), provided that such Class 1 LTIP Unit has been outstanding for at least two years from the date of grant.

F4 · derivative.exercise_date: A holder of Partnership Common Units has the right to require the UDR Partnership to redeem all or a portion of the Partnership Common Units held by the holder in exchange for a cash payment based on the market value of the Company's Common Stock at the time of redemption, as defined in the Partnership Agreement (the "Cash Amount"). However, the UDR Partnership's obligation to pay the Cash Amount is subject the prior right of the Company to acquire such Partnership Common Units in exchange for either the Cash Amount or shares of the Company's Common Stock.

F5 · derivative.exercise_date: The Company, as the general partner of the UDR Partnership, may, in its sole discretion, purchase the Partnership Common Units by paying the limited partner either the Cash Amount or the REIT Share Amount (generally one share of the Company's Common Stock for each Partnership Common Unit), as such terms are defined in the Partnership Agreement. The right to convert the Class 1 LTIP Units into Partnership Common Units and the right to receive the Cash Amount or the REIT Share Amount (in the Company's sole discretion) in exchange for Partnership Common Units do not have expiration dates.

F6 · derivative.exercise_date: The Class 1 LTIP Units shall vest on the first anniversary of the vesting commencement date, which is January 2, 2025.

F5 · derivative.expiration_date: The Company, as the general partner of the UDR Partnership, may, in its sole discretion, purchase the Partnership Common Units by paying the limited partner either the Cash Amount or the REIT Share Amount (generally one share of the Company's Common Stock for each Partnership Common Unit), as such terms are defined in the Partnership Agreement. The right to convert the Class 1 LTIP Units into Partnership Common Units and the right to receive the Cash Amount or the REIT Share Amount (in the Company's sole discretion) in exchange for Partnership Common Units do not have expiration dates.

F3 · derivative.underlying: Subject to the conditions set forth in the Eleventh Amendment to the Amended and Restated Agreement of Limited Partnership of the UDR Partnership (the "Partnership Agreement") and subject to the vesting conditions specified with respect to each Class 1 LTIP Unit (as described in footnote 6 below), each Class 1 LTIP Unit may be converted, at the election of the holder, into a unit of limited partnership of the UDR Partnership (a "Partnership Common Unit"), provided that such Class 1 LTIP Unit has been outstanding for at least two years from the date of grant.

F4 · derivative.underlying: A holder of Partnership Common Units has the right to require the UDR Partnership to redeem all or a portion of the Partnership Common Units held by the holder in exchange for a cash payment based on the market value of the Company's Common Stock at the time of redemption, as defined in the Partnership Agreement (the "Cash Amount"). However, the UDR Partnership's obligation to pay the Cash Amount is subject the prior right of the Company to acquire such Partnership Common Units in exchange for either the Cash Amount or shares of the Company's Common Stock.

F5 · derivative.underlying: The Company, as the general partner of the UDR Partnership, may, in its sole discretion, purchase the Partnership Common Units by paying the limited partner either the Cash Amount or the REIT Share Amount (generally one share of the Company's Common Stock for each Partnership Common Unit), as such terms are defined in the Partnership Agreement. The right to convert the Class 1 LTIP Units into Partnership Common Units and the right to receive the Cash Amount or the REIT Share Amount (in the Company's sole discretion) in exchange for Partnership Common Units do not have expiration dates.

F6 · derivative.underlying: The Class 1 LTIP Units shall vest on the first anniversary of the vesting commencement date, which is January 2, 2025.

SEC source: 0001664272-24-000090 · f5_a1e2k00000wi7sgual-live.xml · nonDerivative · entry 1

CATTANACH KATHERINE A · CIK 0001359435 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 88,308

F1 · kind: Shares acquired through Dividend Reinvestment.

F1 · shares: Shares acquired through Dividend Reinvestment.

SEC source: 0001664272-25-000102 · f5_a1eus000003tlhvmay-live.xml · nonDerivative · entry 2

Lacy Michael D · CIK 0001827142 · COO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 15,822

F1 · kind: Shares acquired through Dividend Reinvestment.

F2 · kind: The shares acquired were not previously reported on Form 5.

F1 · shares: Shares acquired through Dividend Reinvestment.

F2 · shares: The shares acquired were not previously reported on Form 5.

SEC source: 0001225208-23-011352 · doc4.xml · nonDerivative · entry 1

TOOMEY THOMAS W · CIK 0001195697 · Director · Chairman and CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 939,716

F1 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $37.90 to $37.905, inclusive. The reporting person undertakes to provide to UDR, Inc., any security holder of UDR, Inc., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote.

SEC source: 0001096906-23-002282 · form4.xml · derivative · entry 1

TOOMEY THOMAS W · CIK 0001195697 · Director · Chairman and CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 4,254,400

Underlying: Common Stock · 783,532 shares

Expires 2036-12-05

F1 · security: Represents Class 2 Performance LTIP Units in United Dominion Realty, L.P., a Delaware limited partnership (the "UDR Partnership"). UDR, Inc. (the "Company") is the parent company and sole general partner of the UDR Partnership.

F2 · derivative.exercise_price: Subject to the conditions set forth in the Eleventh Amendment to the Amended and Restated Agreement of Limited Partnership of the UDR Partnership, each Class 2 Performance LTIP Unit may be converted, at the election of the holder, into a Class 2 LTIP Unit at any time (i) on or after when the Class 2 Performance LTIP Unit has vested (as described in footnote 7 below) and (ii) before the expiration date of the Class 2 Performance LTIP Unit.

F3 · derivative.exercise_price: Class 2 Performance LTIP Units convert to a number of Class 2 LTIP Units equal to (i) the applicable Performance LTIP Unit Value, which is calculated as the product of (x) the excess (if any) of the REIT Share Value over the Issue Price for the Class 2 Performance Unit and (y) the Conversion Factor, multiplied by (ii) the number of Class 2 Performance LTIP Units being converted, and divided by (iii) the REIT Share Value on the Conversion Date, as such terms are defined in the Amended and Restated Agreement of Limited Partnership of the UDR Partnership.

F4 · derivative.exercise_price: Subject to the conditions set forth in the Eleventh Amendment to the Amended and Restated Agreement of Limited Partnership of the UDR Partnership and subject to any vesting conditions specified with respect to each Class 2 LTIP Unit, each Class 2 LTIP Unit may be converted, at the election of the holder, into a unit of limited partnership of the UDR Partnership (a "Partnership Common Unit"), provided that such Class 2 LTIP Unit has been outstanding for at least two years from the date of grant.

F5 · derivative.exercise_price: A holder of Partnership Common Units has the right to require the UDR Partnership to redeem all or a portion of the Partnership Common Units held by the holder in exchange for a cash payment based on the market value of the Company's Common Stock at the time of redemption, as defined in the Amended and Restated Agreement of Limited Partnership of the UDR Partnership (the "Cash Amount"). However, the UDR Partnership's obligation to pay the Cash Amount is subject the prior right of the Company to acquire such Partnership Common Units in exchange for either the Cash Amount or shares of the Company's Common Stock, as described in footnote 6 below.

F6 · derivative.exercise_price: The Company, as the general partner of the UDR Partnership, may, in its sole discretion, purchase the Partnership Common Units by paying the limited partner either the Cash Amount or the REIT Share Amount (generally one share of the Company's Common Stock for each Partnership Common Unit), as such terms are defined in the Amended and Restated Agreement of Limited Partnership of the UDR Partnership. The right to convert the Class 2 LTIP Units into Partnership Common Units and the right to receive the Cash Amount or the REIT Share Amount (in the Company's sole discretion) in exchange for Partnership Common Units do not have expiration dates.

F7 · shares: The Class 2 Performance LTIP Units were granted on December 5, 2021 at maximum and would be earned only to the extent that the pre-established common stock price hurdles were achieved over a four-year measurement period commencing on December 5, 2022. The Class 2 Performance LTIP Units would, to the extent earned, vest, subject to Mr. Toomey's continuing employment, on the fifth anniversary of the date of grant. On November 28, 2023, the reporting person voluntarily forfeited the Class 2 Performance LTIP Units for no consideration from the Company.

F2 · derivative.exercise_date: Subject to the conditions set forth in the Eleventh Amendment to the Amended and Restated Agreement of Limited Partnership of the UDR Partnership, each Class 2 Performance LTIP Unit may be converted, at the election of the holder, into a Class 2 LTIP Unit at any time (i) on or after when the Class 2 Performance LTIP Unit has vested (as described in footnote 7 below) and (ii) before the expiration date of the Class 2 Performance LTIP Unit.

F3 · derivative.exercise_date: Class 2 Performance LTIP Units convert to a number of Class 2 LTIP Units equal to (i) the applicable Performance LTIP Unit Value, which is calculated as the product of (x) the excess (if any) of the REIT Share Value over the Issue Price for the Class 2 Performance Unit and (y) the Conversion Factor, multiplied by (ii) the number of Class 2 Performance LTIP Units being converted, and divided by (iii) the REIT Share Value on the Conversion Date, as such terms are defined in the Amended and Restated Agreement of Limited Partnership of the UDR Partnership.

F4 · derivative.exercise_date: Subject to the conditions set forth in the Eleventh Amendment to the Amended and Restated Agreement of Limited Partnership of the UDR Partnership and subject to any vesting conditions specified with respect to each Class 2 LTIP Unit, each Class 2 LTIP Unit may be converted, at the election of the holder, into a unit of limited partnership of the UDR Partnership (a "Partnership Common Unit"), provided that such Class 2 LTIP Unit has been outstanding for at least two years from the date of grant.

F5 · derivative.exercise_date: A holder of Partnership Common Units has the right to require the UDR Partnership to redeem all or a portion of the Partnership Common Units held by the holder in exchange for a cash payment based on the market value of the Company's Common Stock at the time of redemption, as defined in the Amended and Restated Agreement of Limited Partnership of the UDR Partnership (the "Cash Amount"). However, the UDR Partnership's obligation to pay the Cash Amount is subject the prior right of the Company to acquire such Partnership Common Units in exchange for either the Cash Amount or shares of the Company's Common Stock, as described in footnote 6 below.

F6 · derivative.exercise_date: The Company, as the general partner of the UDR Partnership, may, in its sole discretion, purchase the Partnership Common Units by paying the limited partner either the Cash Amount or the REIT Share Amount (generally one share of the Company's Common Stock for each Partnership Common Unit), as such terms are defined in the Amended and Restated Agreement of Limited Partnership of the UDR Partnership. The right to convert the Class 2 LTIP Units into Partnership Common Units and the right to receive the Cash Amount or the REIT Share Amount (in the Company's sole discretion) in exchange for Partnership Common Units do not have expiration dates.

F7 · derivative.exercise_date: The Class 2 Performance LTIP Units were granted on December 5, 2021 at maximum and would be earned only to the extent that the pre-established common stock price hurdles were achieved over a four-year measurement period commencing on December 5, 2022. The Class 2 Performance LTIP Units would, to the extent earned, vest, subject to Mr. Toomey's continuing employment, on the fifth anniversary of the date of grant. On November 28, 2023, the reporting person voluntarily forfeited the Class 2 Performance LTIP Units for no consideration from the Company.

F2 · derivative.underlying: Subject to the conditions set forth in the Eleventh Amendment to the Amended and Restated Agreement of Limited Partnership of the UDR Partnership, each Class 2 Performance LTIP Unit may be converted, at the election of the holder, into a Class 2 LTIP Unit at any time (i) on or after when the Class 2 Performance LTIP Unit has vested (as described in footnote 7 below) and (ii) before the expiration date of the Class 2 Performance LTIP Unit.

F3 · derivative.underlying: Class 2 Performance LTIP Units convert to a number of Class 2 LTIP Units equal to (i) the applicable Performance LTIP Unit Value, which is calculated as the product of (x) the excess (if any) of the REIT Share Value over the Issue Price for the Class 2 Performance Unit and (y) the Conversion Factor, multiplied by (ii) the number of Class 2 Performance LTIP Units being converted, and divided by (iii) the REIT Share Value on the Conversion Date, as such terms are defined in the Amended and Restated Agreement of Limited Partnership of the UDR Partnership.

F4 · derivative.underlying: Subject to the conditions set forth in the Eleventh Amendment to the Amended and Restated Agreement of Limited Partnership of the UDR Partnership and subject to any vesting conditions specified with respect to each Class 2 LTIP Unit, each Class 2 LTIP Unit may be converted, at the election of the holder, into a unit of limited partnership of the UDR Partnership (a "Partnership Common Unit"), provided that such Class 2 LTIP Unit has been outstanding for at least two years from the date of grant.

F5 · derivative.underlying: A holder of Partnership Common Units has the right to require the UDR Partnership to redeem all or a portion of the Partnership Common Units held by the holder in exchange for a cash payment based on the market value of the Company's Common Stock at the time of redemption, as defined in the Amended and Restated Agreement of Limited Partnership of the UDR Partnership (the "Cash Amount"). However, the UDR Partnership's obligation to pay the Cash Amount is subject the prior right of the Company to acquire such Partnership Common Units in exchange for either the Cash Amount or shares of the Company's Common Stock, as described in footnote 6 below.

F6 · derivative.underlying: The Company, as the general partner of the UDR Partnership, may, in its sole discretion, purchase the Partnership Common Units by paying the limited partner either the Cash Amount or the REIT Share Amount (generally one share of the Company's Common Stock for each Partnership Common Unit), as such terms are defined in the Amended and Restated Agreement of Limited Partnership of the UDR Partnership. The right to convert the Class 2 LTIP Units into Partnership Common Units and the right to receive the Cash Amount or the REIT Share Amount (in the Company's sole discretion) in exchange for Partnership Common Units do not have expiration dates.

SEC source: 0001664272-24-000091 · f5_a1e2k00000wi7sbual-live.xml · derivative · entry 1

TOOMEY THOMAS W · CIK 0001195697 · Director · Chairman and CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 433,434

Underlying: Common Stock · 100,000 shares

Expires not disclosed

F1 · security: Represents Class 2 LTIP Units (the "Class 2 LTIP Units") in United Dominion Realty, L.P., a Delaware limited partnership (the "UDR Partnership"). UDR, Inc. (the "Company") is the parent company and sole general partner of the UDR Partnership.

F2 · derivative.exercise_price: Subject to the conditions set forth in the Eleventh Amendment to the Amended and Restated Agreement of Limited Partnership of the UDR Partnership (the "Partnership Agreement") and subject to the vesting conditions specified with respect to each Class 2 LTIP Unit, each Class 2 LTIP Unit may be converted into a unit of limited partnership of the UDR Partnership (a "Partnership Common Unit"), provided that such Class 2 LTIP Unit has been outstanding for at least two years from the date of grant.

F3 · derivative.exercise_price: A holder of Partnership Common Units has the right to require the UDR Partnership to redeem all or a portion of the Partnership Common Units held by the holder in exchange for a cash payment based on the market value of the Company's Common Stock at the time of redemption, as defined in the Partnership Agreement (the "Cash Amount"). However, the UDR Partnership's obligation to pay the Cash Amount is subject the prior right of the Company to acquire such Partnership Common Units in exchange for either the Cash Amount or shares of the Company's Common Stock.

F4 · derivative.exercise_price: The Company, as the general partner of the UDR Partnership, may, in its sole discretion, purchase the Partnership Common Units by paying the limited partner either the Cash Amount or the REIT Share Amount (generally one share of the Company's Common Stock for each Partnership Common Unit), as such terms are defined in the Partnership Agreement. The right to convert the Class 2 LTIP Units into Partnership Common Units and the right to receive the Cash Amount or the REIT Share Amount (in the Company's sole discretion) in exchange for Partnership Common Units do not have expiration dates.

F5 · shares: The reporting person contributed 75,000 Class 2 LTIP Units to the "Thomas W. Toomey 2023 Grantor Retained Annuity Trust TD" and 25,000 Class 2 LTIP Units to the "Thomas W. Toomey 2023 Grantor Retained Annuity Trust BDJ" for no consideration

F2 · derivative.exercise_date: Subject to the conditions set forth in the Eleventh Amendment to the Amended and Restated Agreement of Limited Partnership of the UDR Partnership (the "Partnership Agreement") and subject to the vesting conditions specified with respect to each Class 2 LTIP Unit, each Class 2 LTIP Unit may be converted into a unit of limited partnership of the UDR Partnership (a "Partnership Common Unit"), provided that such Class 2 LTIP Unit has been outstanding for at least two years from the date of grant.

F3 · derivative.exercise_date: A holder of Partnership Common Units has the right to require the UDR Partnership to redeem all or a portion of the Partnership Common Units held by the holder in exchange for a cash payment based on the market value of the Company's Common Stock at the time of redemption, as defined in the Partnership Agreement (the "Cash Amount"). However, the UDR Partnership's obligation to pay the Cash Amount is subject the prior right of the Company to acquire such Partnership Common Units in exchange for either the Cash Amount or shares of the Company's Common Stock.

F4 · derivative.exercise_date: The Company, as the general partner of the UDR Partnership, may, in its sole discretion, purchase the Partnership Common Units by paying the limited partner either the Cash Amount or the REIT Share Amount (generally one share of the Company's Common Stock for each Partnership Common Unit), as such terms are defined in the Partnership Agreement. The right to convert the Class 2 LTIP Units into Partnership Common Units and the right to receive the Cash Amount or the REIT Share Amount (in the Company's sole discretion) in exchange for Partnership Common Units do not have expiration dates.

F4 · derivative.expiration_date: The Company, as the general partner of the UDR Partnership, may, in its sole discretion, purchase the Partnership Common Units by paying the limited partner either the Cash Amount or the REIT Share Amount (generally one share of the Company's Common Stock for each Partnership Common Unit), as such terms are defined in the Partnership Agreement. The right to convert the Class 2 LTIP Units into Partnership Common Units and the right to receive the Cash Amount or the REIT Share Amount (in the Company's sole discretion) in exchange for Partnership Common Units do not have expiration dates.

F2 · derivative.underlying: Subject to the conditions set forth in the Eleventh Amendment to the Amended and Restated Agreement of Limited Partnership of the UDR Partnership (the "Partnership Agreement") and subject to the vesting conditions specified with respect to each Class 2 LTIP Unit, each Class 2 LTIP Unit may be converted into a unit of limited partnership of the UDR Partnership (a "Partnership Common Unit"), provided that such Class 2 LTIP Unit has been outstanding for at least two years from the date of grant.

F3 · derivative.underlying: A holder of Partnership Common Units has the right to require the UDR Partnership to redeem all or a portion of the Partnership Common Units held by the holder in exchange for a cash payment based on the market value of the Company's Common Stock at the time of redemption, as defined in the Partnership Agreement (the "Cash Amount"). However, the UDR Partnership's obligation to pay the Cash Amount is subject the prior right of the Company to acquire such Partnership Common Units in exchange for either the Cash Amount or shares of the Company's Common Stock.

F4 · derivative.underlying: The Company, as the general partner of the UDR Partnership, may, in its sole discretion, purchase the Partnership Common Units by paying the limited partner either the Cash Amount or the REIT Share Amount (generally one share of the Company's Common Stock for each Partnership Common Unit), as such terms are defined in the Partnership Agreement. The right to convert the Class 2 LTIP Units into Partnership Common Units and the right to receive the Cash Amount or the REIT Share Amount (in the Company's sole discretion) in exchange for Partnership Common Units do not have expiration dates.

SEC source: 0001096906-23-001464 · form4.xml · derivative · entry 3

TOOMEY THOMAS W · CIK 0001195697 · Director · Chairman and CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 150,000 shares

Expires not disclosed

F2 · security: Subject to the conditions set forth in the Amended and Restated Agreement of Limited Partnership of the UDR Partnership, as amended (the "Partnership Agreement") and subject to the vesting conditions specified with respect to each Class 2 LTIP Unit, each Class 2 LTIP Unit may be converted into a unit of limited partnership of the UDR Partnership (a "Partnership Common Unit"), provided that such Class 2 LTIP Unit has been outstanding for at least two years from the date of grant.

F2 · derivative.exercise_price: Subject to the conditions set forth in the Amended and Restated Agreement of Limited Partnership of the UDR Partnership, as amended (the "Partnership Agreement") and subject to the vesting conditions specified with respect to each Class 2 LTIP Unit, each Class 2 LTIP Unit may be converted into a unit of limited partnership of the UDR Partnership (a "Partnership Common Unit"), provided that such Class 2 LTIP Unit has been outstanding for at least two years from the date of grant.

F3 · derivative.exercise_price: A holder of Partnership Common Units has the right to require the UDR Partnership to redeem all or a portion of the Partnership Common Units held by the holder in exchange for a cash payment based on the market value of the Company's Common Stock at the time of redemption, as defined in the Partnership Agreement (the "Cash Amount"). However, the UDR Partnership's obligation to pay the Cash Amount is subject to the prior right of the Company to acquire such Partnership Common Units in exchange for either the Cash Amount or shares of the Company's Common Stock.

F4 · derivative.exercise_price: The Company, as the general partner of the UDR Partnership, may, in its sole discretion, purchase the Partnership Common Units by paying the limited partner either the Cash Amount or the REIT Share Amount (generally one share of the Company's Common Stock for each Partnership Common Unit), as such terms are defined in the Partnership Agreement. The right to convert the Class 2 LTIP Units into Partnership Common Units and the right to receive the Cash Amount or the REIT Share Amount (in the Company's sole discretion) in exchange for Partnership Common Units do not have expiration dates.

F7 · shares: Amount represents the number of Partnership Common Units acquired by the Company.

F2 · derivative.exercise_date: Subject to the conditions set forth in the Amended and Restated Agreement of Limited Partnership of the UDR Partnership, as amended (the "Partnership Agreement") and subject to the vesting conditions specified with respect to each Class 2 LTIP Unit, each Class 2 LTIP Unit may be converted into a unit of limited partnership of the UDR Partnership (a "Partnership Common Unit"), provided that such Class 2 LTIP Unit has been outstanding for at least two years from the date of grant.

F3 · derivative.exercise_date: A holder of Partnership Common Units has the right to require the UDR Partnership to redeem all or a portion of the Partnership Common Units held by the holder in exchange for a cash payment based on the market value of the Company's Common Stock at the time of redemption, as defined in the Partnership Agreement (the "Cash Amount"). However, the UDR Partnership's obligation to pay the Cash Amount is subject to the prior right of the Company to acquire such Partnership Common Units in exchange for either the Cash Amount or shares of the Company's Common Stock.

F4 · derivative.exercise_date: The Company, as the general partner of the UDR Partnership, may, in its sole discretion, purchase the Partnership Common Units by paying the limited partner either the Cash Amount or the REIT Share Amount (generally one share of the Company's Common Stock for each Partnership Common Unit), as such terms are defined in the Partnership Agreement. The right to convert the Class 2 LTIP Units into Partnership Common Units and the right to receive the Cash Amount or the REIT Share Amount (in the Company's sole discretion) in exchange for Partnership Common Units do not have expiration dates.

F4 · derivative.expiration_date: The Company, as the general partner of the UDR Partnership, may, in its sole discretion, purchase the Partnership Common Units by paying the limited partner either the Cash Amount or the REIT Share Amount (generally one share of the Company's Common Stock for each Partnership Common Unit), as such terms are defined in the Partnership Agreement. The right to convert the Class 2 LTIP Units into Partnership Common Units and the right to receive the Cash Amount or the REIT Share Amount (in the Company's sole discretion) in exchange for Partnership Common Units do not have expiration dates.

F2 · derivative.underlying: Subject to the conditions set forth in the Amended and Restated Agreement of Limited Partnership of the UDR Partnership, as amended (the "Partnership Agreement") and subject to the vesting conditions specified with respect to each Class 2 LTIP Unit, each Class 2 LTIP Unit may be converted into a unit of limited partnership of the UDR Partnership (a "Partnership Common Unit"), provided that such Class 2 LTIP Unit has been outstanding for at least two years from the date of grant.

F3 · derivative.underlying: A holder of Partnership Common Units has the right to require the UDR Partnership to redeem all or a portion of the Partnership Common Units held by the holder in exchange for a cash payment based on the market value of the Company's Common Stock at the time of redemption, as defined in the Partnership Agreement (the "Cash Amount"). However, the UDR Partnership's obligation to pay the Cash Amount is subject to the prior right of the Company to acquire such Partnership Common Units in exchange for either the Cash Amount or shares of the Company's Common Stock.

F4 · derivative.underlying: The Company, as the general partner of the UDR Partnership, may, in its sole discretion, purchase the Partnership Common Units by paying the limited partner either the Cash Amount or the REIT Share Amount (generally one share of the Company's Common Stock for each Partnership Common Unit), as such terms are defined in the Partnership Agreement. The right to convert the Class 2 LTIP Units into Partnership Common Units and the right to receive the Cash Amount or the REIT Share Amount (in the Company's sole discretion) in exchange for Partnership Common Units do not have expiration dates.

SEC source: 0001096906-23-001464 · form4.xml · derivative · entry 2

TOOMEY THOMAS W · CIK 0001195697 · Director · Chairman and CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 150,000

Underlying: Common Stock · 150,000 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · security: Subject to the conditions set forth in the Amended and Restated Agreement of Limited Partnership of the UDR Partnership, as amended (the "Partnership Agreement") and subject to the vesting conditions specified with respect to each Class 2 LTIP Unit, each Class 2 LTIP Unit may be converted into a unit of limited partnership of the UDR Partnership (a "Partnership Common Unit"), provided that such Class 2 LTIP Unit has been outstanding for at least two years from the date of grant.

F2 · derivative.exercise_price: Subject to the conditions set forth in the Amended and Restated Agreement of Limited Partnership of the UDR Partnership, as amended (the "Partnership Agreement") and subject to the vesting conditions specified with respect to each Class 2 LTIP Unit, each Class 2 LTIP Unit may be converted into a unit of limited partnership of the UDR Partnership (a "Partnership Common Unit"), provided that such Class 2 LTIP Unit has been outstanding for at least two years from the date of grant.

F3 · derivative.exercise_price: A holder of Partnership Common Units has the right to require the UDR Partnership to redeem all or a portion of the Partnership Common Units held by the holder in exchange for a cash payment based on the market value of the Company's Common Stock at the time of redemption, as defined in the Partnership Agreement (the "Cash Amount"). However, the UDR Partnership's obligation to pay the Cash Amount is subject to the prior right of the Company to acquire such Partnership Common Units in exchange for either the Cash Amount or shares of the Company's Common Stock.

F4 · derivative.exercise_price: The Company, as the general partner of the UDR Partnership, may, in its sole discretion, purchase the Partnership Common Units by paying the limited partner either the Cash Amount or the REIT Share Amount (generally one share of the Company's Common Stock for each Partnership Common Unit), as such terms are defined in the Partnership Agreement. The right to convert the Class 2 LTIP Units into Partnership Common Units and the right to receive the Cash Amount or the REIT Share Amount (in the Company's sole discretion) in exchange for Partnership Common Units do not have expiration dates.

F6 · shares: Amount represents the number of Partnership Common Units acquired upon conversion of the Class 2 LTIP Units.

F2 · derivative.exercise_date: Subject to the conditions set forth in the Amended and Restated Agreement of Limited Partnership of the UDR Partnership, as amended (the "Partnership Agreement") and subject to the vesting conditions specified with respect to each Class 2 LTIP Unit, each Class 2 LTIP Unit may be converted into a unit of limited partnership of the UDR Partnership (a "Partnership Common Unit"), provided that such Class 2 LTIP Unit has been outstanding for at least two years from the date of grant.

F3 · derivative.exercise_date: A holder of Partnership Common Units has the right to require the UDR Partnership to redeem all or a portion of the Partnership Common Units held by the holder in exchange for a cash payment based on the market value of the Company's Common Stock at the time of redemption, as defined in the Partnership Agreement (the "Cash Amount"). However, the UDR Partnership's obligation to pay the Cash Amount is subject to the prior right of the Company to acquire such Partnership Common Units in exchange for either the Cash Amount or shares of the Company's Common Stock.

F4 · derivative.exercise_date: The Company, as the general partner of the UDR Partnership, may, in its sole discretion, purchase the Partnership Common Units by paying the limited partner either the Cash Amount or the REIT Share Amount (generally one share of the Company's Common Stock for each Partnership Common Unit), as such terms are defined in the Partnership Agreement. The right to convert the Class 2 LTIP Units into Partnership Common Units and the right to receive the Cash Amount or the REIT Share Amount (in the Company's sole discretion) in exchange for Partnership Common Units do not have expiration dates.

F4 · derivative.expiration_date: The Company, as the general partner of the UDR Partnership, may, in its sole discretion, purchase the Partnership Common Units by paying the limited partner either the Cash Amount or the REIT Share Amount (generally one share of the Company's Common Stock for each Partnership Common Unit), as such terms are defined in the Partnership Agreement. The right to convert the Class 2 LTIP Units into Partnership Common Units and the right to receive the Cash Amount or the REIT Share Amount (in the Company's sole discretion) in exchange for Partnership Common Units do not have expiration dates.

F2 · derivative.underlying: Subject to the conditions set forth in the Amended and Restated Agreement of Limited Partnership of the UDR Partnership, as amended (the "Partnership Agreement") and subject to the vesting conditions specified with respect to each Class 2 LTIP Unit, each Class 2 LTIP Unit may be converted into a unit of limited partnership of the UDR Partnership (a "Partnership Common Unit"), provided that such Class 2 LTIP Unit has been outstanding for at least two years from the date of grant.

F3 · derivative.underlying: A holder of Partnership Common Units has the right to require the UDR Partnership to redeem all or a portion of the Partnership Common Units held by the holder in exchange for a cash payment based on the market value of the Company's Common Stock at the time of redemption, as defined in the Partnership Agreement (the "Cash Amount"). However, the UDR Partnership's obligation to pay the Cash Amount is subject to the prior right of the Company to acquire such Partnership Common Units in exchange for either the Cash Amount or shares of the Company's Common Stock.

F4 · derivative.underlying: The Company, as the general partner of the UDR Partnership, may, in its sole discretion, purchase the Partnership Common Units by paying the limited partner either the Cash Amount or the REIT Share Amount (generally one share of the Company's Common Stock for each Partnership Common Unit), as such terms are defined in the Partnership Agreement. The right to convert the Class 2 LTIP Units into Partnership Common Units and the right to receive the Cash Amount or the REIT Share Amount (in the Company's sole discretion) in exchange for Partnership Common Units do not have expiration dates.

SEC source: 0001096906-23-001464 · form4.xml · derivative · entry 1

TOOMEY THOMAS W · CIK 0001195697 · Director · Chairman and CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 491,070

Underlying: Common Stock · 150,000 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · security: Represents Class 2 LTIP Units (the "Class 2 LTIP Units") in United Dominion Realty, L.P., a Delaware limited partnership (the "UDR Partnership"). UDR, Inc. (the "Company") is the parent company and sole general partner of the UDR Partnership.

F2 · derivative.exercise_price: Subject to the conditions set forth in the Amended and Restated Agreement of Limited Partnership of the UDR Partnership, as amended (the "Partnership Agreement") and subject to the vesting conditions specified with respect to each Class 2 LTIP Unit, each Class 2 LTIP Unit may be converted into a unit of limited partnership of the UDR Partnership (a "Partnership Common Unit"), provided that such Class 2 LTIP Unit has been outstanding for at least two years from the date of grant.

F3 · derivative.exercise_price: A holder of Partnership Common Units has the right to require the UDR Partnership to redeem all or a portion of the Partnership Common Units held by the holder in exchange for a cash payment based on the market value of the Company's Common Stock at the time of redemption, as defined in the Partnership Agreement (the "Cash Amount"). However, the UDR Partnership's obligation to pay the Cash Amount is subject to the prior right of the Company to acquire such Partnership Common Units in exchange for either the Cash Amount or shares of the Company's Common Stock.

F4 · derivative.exercise_price: The Company, as the general partner of the UDR Partnership, may, in its sole discretion, purchase the Partnership Common Units by paying the limited partner either the Cash Amount or the REIT Share Amount (generally one share of the Company's Common Stock for each Partnership Common Unit), as such terms are defined in the Partnership Agreement. The right to convert the Class 2 LTIP Units into Partnership Common Units and the right to receive the Cash Amount or the REIT Share Amount (in the Company's sole discretion) in exchange for Partnership Common Units do not have expiration dates.

F5 · shares: Amount represents the number of vested Class 2 LTIP Units that were converted into Partnership Common Units.

F2 · derivative.exercise_date: Subject to the conditions set forth in the Amended and Restated Agreement of Limited Partnership of the UDR Partnership, as amended (the "Partnership Agreement") and subject to the vesting conditions specified with respect to each Class 2 LTIP Unit, each Class 2 LTIP Unit may be converted into a unit of limited partnership of the UDR Partnership (a "Partnership Common Unit"), provided that such Class 2 LTIP Unit has been outstanding for at least two years from the date of grant.

F3 · derivative.exercise_date: A holder of Partnership Common Units has the right to require the UDR Partnership to redeem all or a portion of the Partnership Common Units held by the holder in exchange for a cash payment based on the market value of the Company's Common Stock at the time of redemption, as defined in the Partnership Agreement (the "Cash Amount"). However, the UDR Partnership's obligation to pay the Cash Amount is subject to the prior right of the Company to acquire such Partnership Common Units in exchange for either the Cash Amount or shares of the Company's Common Stock.

F4 · derivative.exercise_date: The Company, as the general partner of the UDR Partnership, may, in its sole discretion, purchase the Partnership Common Units by paying the limited partner either the Cash Amount or the REIT Share Amount (generally one share of the Company's Common Stock for each Partnership Common Unit), as such terms are defined in the Partnership Agreement. The right to convert the Class 2 LTIP Units into Partnership Common Units and the right to receive the Cash Amount or the REIT Share Amount (in the Company's sole discretion) in exchange for Partnership Common Units do not have expiration dates.

F4 · derivative.expiration_date: The Company, as the general partner of the UDR Partnership, may, in its sole discretion, purchase the Partnership Common Units by paying the limited partner either the Cash Amount or the REIT Share Amount (generally one share of the Company's Common Stock for each Partnership Common Unit), as such terms are defined in the Partnership Agreement. The right to convert the Class 2 LTIP Units into Partnership Common Units and the right to receive the Cash Amount or the REIT Share Amount (in the Company's sole discretion) in exchange for Partnership Common Units do not have expiration dates.

F2 · derivative.underlying: Subject to the conditions set forth in the Amended and Restated Agreement of Limited Partnership of the UDR Partnership, as amended (the "Partnership Agreement") and subject to the vesting conditions specified with respect to each Class 2 LTIP Unit, each Class 2 LTIP Unit may be converted into a unit of limited partnership of the UDR Partnership (a "Partnership Common Unit"), provided that such Class 2 LTIP Unit has been outstanding for at least two years from the date of grant.

F3 · derivative.underlying: A holder of Partnership Common Units has the right to require the UDR Partnership to redeem all or a portion of the Partnership Common Units held by the holder in exchange for a cash payment based on the market value of the Company's Common Stock at the time of redemption, as defined in the Partnership Agreement (the "Cash Amount"). However, the UDR Partnership's obligation to pay the Cash Amount is subject to the prior right of the Company to acquire such Partnership Common Units in exchange for either the Cash Amount or shares of the Company's Common Stock.

F4 · derivative.underlying: The Company, as the general partner of the UDR Partnership, may, in its sole discretion, purchase the Partnership Common Units by paying the limited partner either the Cash Amount or the REIT Share Amount (generally one share of the Company's Common Stock for each Partnership Common Unit), as such terms are defined in the Partnership Agreement. The right to convert the Class 2 LTIP Units into Partnership Common Units and the right to receive the Cash Amount or the REIT Share Amount (in the Company's sole discretion) in exchange for Partnership Common Units do not have expiration dates.

SEC source: 0001096906-23-000557 · form4.xml · derivative · entry 3

TOOMEY THOMAS W · CIK 0001195697 · Director · Chairman and CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 125,000 shares

Expires not disclosed

F2 · security: Subject to the conditions set forth in the Amended and Restated Agreement of Limited Partnership of the UDR Partnership, as amended (the "Partnership Agreement") and subject to the vesting conditions specified with respect to each Class 2 LTIP Unit, each Class 2 LTIP Unit may be converted into a unit of limited partnership of the UDR Partnership (a "Partnership Common Unit"), provided that such Class 2 LTIP Unit has been outstanding for at least two years from the date of grant.

F2 · derivative.exercise_price: Subject to the conditions set forth in the Amended and Restated Agreement of Limited Partnership of the UDR Partnership, as amended (the "Partnership Agreement") and subject to the vesting conditions specified with respect to each Class 2 LTIP Unit, each Class 2 LTIP Unit may be converted into a unit of limited partnership of the UDR Partnership (a "Partnership Common Unit"), provided that such Class 2 LTIP Unit has been outstanding for at least two years from the date of grant.

F3 · derivative.exercise_price: A holder of Partnership Common Units has the right to require the UDR Partnership to redeem all or a portion of the Partnership Common Units held by the holder in exchange for a cash payment based on the market value of the Company's Common Stock at the time of redemption, as defined in the Partnership Agreement (the "Cash Amount"). However, the UDR Partnership's obligation to pay the Cash Amount is subject to the prior right of the Company to acquire such Partnership Common Units in exchange for either the Cash Amount or shares of the Company's Common Stock.

F4 · derivative.exercise_price: The Company, as the general partner of the UDR Partnership, may, in its sole discretion, purchase the Partnership Common Units by paying the limited partner either the Cash Amount or the REIT Share Amount (generally one share of the Company's Common Stock for each Partnership Common Unit), as such terms are defined in the Partnership Agreement. The right to convert the Class 2 LTIP Units into Partnership Common Units and the right to receive the Cash Amount or the REIT Share Amount (in the Company's sole discretion) in exchange for Partnership Common Units do not have expiration dates.

F7 · shares: Amount represents the number of Partnership Common Units acquired by the Company.

F2 · derivative.exercise_date: Subject to the conditions set forth in the Amended and Restated Agreement of Limited Partnership of the UDR Partnership, as amended (the "Partnership Agreement") and subject to the vesting conditions specified with respect to each Class 2 LTIP Unit, each Class 2 LTIP Unit may be converted into a unit of limited partnership of the UDR Partnership (a "Partnership Common Unit"), provided that such Class 2 LTIP Unit has been outstanding for at least two years from the date of grant.

F3 · derivative.exercise_date: A holder of Partnership Common Units has the right to require the UDR Partnership to redeem all or a portion of the Partnership Common Units held by the holder in exchange for a cash payment based on the market value of the Company's Common Stock at the time of redemption, as defined in the Partnership Agreement (the "Cash Amount"). However, the UDR Partnership's obligation to pay the Cash Amount is subject to the prior right of the Company to acquire such Partnership Common Units in exchange for either the Cash Amount or shares of the Company's Common Stock.

F4 · derivative.exercise_date: The Company, as the general partner of the UDR Partnership, may, in its sole discretion, purchase the Partnership Common Units by paying the limited partner either the Cash Amount or the REIT Share Amount (generally one share of the Company's Common Stock for each Partnership Common Unit), as such terms are defined in the Partnership Agreement. The right to convert the Class 2 LTIP Units into Partnership Common Units and the right to receive the Cash Amount or the REIT Share Amount (in the Company's sole discretion) in exchange for Partnership Common Units do not have expiration dates.

F4 · derivative.expiration_date: The Company, as the general partner of the UDR Partnership, may, in its sole discretion, purchase the Partnership Common Units by paying the limited partner either the Cash Amount or the REIT Share Amount (generally one share of the Company's Common Stock for each Partnership Common Unit), as such terms are defined in the Partnership Agreement. The right to convert the Class 2 LTIP Units into Partnership Common Units and the right to receive the Cash Amount or the REIT Share Amount (in the Company's sole discretion) in exchange for Partnership Common Units do not have expiration dates.

F2 · derivative.underlying: Subject to the conditions set forth in the Amended and Restated Agreement of Limited Partnership of the UDR Partnership, as amended (the "Partnership Agreement") and subject to the vesting conditions specified with respect to each Class 2 LTIP Unit, each Class 2 LTIP Unit may be converted into a unit of limited partnership of the UDR Partnership (a "Partnership Common Unit"), provided that such Class 2 LTIP Unit has been outstanding for at least two years from the date of grant.

F3 · derivative.underlying: A holder of Partnership Common Units has the right to require the UDR Partnership to redeem all or a portion of the Partnership Common Units held by the holder in exchange for a cash payment based on the market value of the Company's Common Stock at the time of redemption, as defined in the Partnership Agreement (the "Cash Amount"). However, the UDR Partnership's obligation to pay the Cash Amount is subject to the prior right of the Company to acquire such Partnership Common Units in exchange for either the Cash Amount or shares of the Company's Common Stock.

F4 · derivative.underlying: The Company, as the general partner of the UDR Partnership, may, in its sole discretion, purchase the Partnership Common Units by paying the limited partner either the Cash Amount or the REIT Share Amount (generally one share of the Company's Common Stock for each Partnership Common Unit), as such terms are defined in the Partnership Agreement. The right to convert the Class 2 LTIP Units into Partnership Common Units and the right to receive the Cash Amount or the REIT Share Amount (in the Company's sole discretion) in exchange for Partnership Common Units do not have expiration dates.

SEC source: 0001096906-23-000557 · form4.xml · derivative · entry 2

TOOMEY THOMAS W · CIK 0001195697 · Director · Chairman and CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 125,000

Underlying: Common Stock · 125,000 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · security: Subject to the conditions set forth in the Amended and Restated Agreement of Limited Partnership of the UDR Partnership, as amended (the "Partnership Agreement") and subject to the vesting conditions specified with respect to each Class 2 LTIP Unit, each Class 2 LTIP Unit may be converted into a unit of limited partnership of the UDR Partnership (a "Partnership Common Unit"), provided that such Class 2 LTIP Unit has been outstanding for at least two years from the date of grant.

F2 · derivative.exercise_price: Subject to the conditions set forth in the Amended and Restated Agreement of Limited Partnership of the UDR Partnership, as amended (the "Partnership Agreement") and subject to the vesting conditions specified with respect to each Class 2 LTIP Unit, each Class 2 LTIP Unit may be converted into a unit of limited partnership of the UDR Partnership (a "Partnership Common Unit"), provided that such Class 2 LTIP Unit has been outstanding for at least two years from the date of grant.

F3 · derivative.exercise_price: A holder of Partnership Common Units has the right to require the UDR Partnership to redeem all or a portion of the Partnership Common Units held by the holder in exchange for a cash payment based on the market value of the Company's Common Stock at the time of redemption, as defined in the Partnership Agreement (the "Cash Amount"). However, the UDR Partnership's obligation to pay the Cash Amount is subject to the prior right of the Company to acquire such Partnership Common Units in exchange for either the Cash Amount or shares of the Company's Common Stock.

F4 · derivative.exercise_price: The Company, as the general partner of the UDR Partnership, may, in its sole discretion, purchase the Partnership Common Units by paying the limited partner either the Cash Amount or the REIT Share Amount (generally one share of the Company's Common Stock for each Partnership Common Unit), as such terms are defined in the Partnership Agreement. The right to convert the Class 2 LTIP Units into Partnership Common Units and the right to receive the Cash Amount or the REIT Share Amount (in the Company's sole discretion) in exchange for Partnership Common Units do not have expiration dates.

F6 · shares: Amount represents the number of Partnership Common Units acquired upon conversion of the Class 2 LTIP Units.

F2 · derivative.exercise_date: Subject to the conditions set forth in the Amended and Restated Agreement of Limited Partnership of the UDR Partnership, as amended (the "Partnership Agreement") and subject to the vesting conditions specified with respect to each Class 2 LTIP Unit, each Class 2 LTIP Unit may be converted into a unit of limited partnership of the UDR Partnership (a "Partnership Common Unit"), provided that such Class 2 LTIP Unit has been outstanding for at least two years from the date of grant.

F3 · derivative.exercise_date: A holder of Partnership Common Units has the right to require the UDR Partnership to redeem all or a portion of the Partnership Common Units held by the holder in exchange for a cash payment based on the market value of the Company's Common Stock at the time of redemption, as defined in the Partnership Agreement (the "Cash Amount"). However, the UDR Partnership's obligation to pay the Cash Amount is subject to the prior right of the Company to acquire such Partnership Common Units in exchange for either the Cash Amount or shares of the Company's Common Stock.

F4 · derivative.exercise_date: The Company, as the general partner of the UDR Partnership, may, in its sole discretion, purchase the Partnership Common Units by paying the limited partner either the Cash Amount or the REIT Share Amount (generally one share of the Company's Common Stock for each Partnership Common Unit), as such terms are defined in the Partnership Agreement. The right to convert the Class 2 LTIP Units into Partnership Common Units and the right to receive the Cash Amount or the REIT Share Amount (in the Company's sole discretion) in exchange for Partnership Common Units do not have expiration dates.

F4 · derivative.expiration_date: The Company, as the general partner of the UDR Partnership, may, in its sole discretion, purchase the Partnership Common Units by paying the limited partner either the Cash Amount or the REIT Share Amount (generally one share of the Company's Common Stock for each Partnership Common Unit), as such terms are defined in the Partnership Agreement. The right to convert the Class 2 LTIP Units into Partnership Common Units and the right to receive the Cash Amount or the REIT Share Amount (in the Company's sole discretion) in exchange for Partnership Common Units do not have expiration dates.

F2 · derivative.underlying: Subject to the conditions set forth in the Amended and Restated Agreement of Limited Partnership of the UDR Partnership, as amended (the "Partnership Agreement") and subject to the vesting conditions specified with respect to each Class 2 LTIP Unit, each Class 2 LTIP Unit may be converted into a unit of limited partnership of the UDR Partnership (a "Partnership Common Unit"), provided that such Class 2 LTIP Unit has been outstanding for at least two years from the date of grant.

F3 · derivative.underlying: A holder of Partnership Common Units has the right to require the UDR Partnership to redeem all or a portion of the Partnership Common Units held by the holder in exchange for a cash payment based on the market value of the Company's Common Stock at the time of redemption, as defined in the Partnership Agreement (the "Cash Amount"). However, the UDR Partnership's obligation to pay the Cash Amount is subject to the prior right of the Company to acquire such Partnership Common Units in exchange for either the Cash Amount or shares of the Company's Common Stock.

F4 · derivative.underlying: The Company, as the general partner of the UDR Partnership, may, in its sole discretion, purchase the Partnership Common Units by paying the limited partner either the Cash Amount or the REIT Share Amount (generally one share of the Company's Common Stock for each Partnership Common Unit), as such terms are defined in the Partnership Agreement. The right to convert the Class 2 LTIP Units into Partnership Common Units and the right to receive the Cash Amount or the REIT Share Amount (in the Company's sole discretion) in exchange for Partnership Common Units do not have expiration dates.

SEC source: 0001096906-23-000557 · form4.xml · derivative · entry 1

TOOMEY THOMAS W · CIK 0001195697 · Director · Chairman and CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 641,070

Underlying: Common Stock · 125,000 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · security: Represents Class 2 LTIP Units (the "Class 2 LTIP Units") in United Dominion Realty, L.P., a Delaware limited partnership (the "UDR Partnership"). UDR, Inc. (the "Company") is the parent company and sole general partner of the UDR Partnership.

F2 · derivative.exercise_price: Subject to the conditions set forth in the Amended and Restated Agreement of Limited Partnership of the UDR Partnership, as amended (the "Partnership Agreement") and subject to the vesting conditions specified with respect to each Class 2 LTIP Unit, each Class 2 LTIP Unit may be converted into a unit of limited partnership of the UDR Partnership (a "Partnership Common Unit"), provided that such Class 2 LTIP Unit has been outstanding for at least two years from the date of grant.

F3 · derivative.exercise_price: A holder of Partnership Common Units has the right to require the UDR Partnership to redeem all or a portion of the Partnership Common Units held by the holder in exchange for a cash payment based on the market value of the Company's Common Stock at the time of redemption, as defined in the Partnership Agreement (the "Cash Amount"). However, the UDR Partnership's obligation to pay the Cash Amount is subject to the prior right of the Company to acquire such Partnership Common Units in exchange for either the Cash Amount or shares of the Company's Common Stock.

F4 · derivative.exercise_price: The Company, as the general partner of the UDR Partnership, may, in its sole discretion, purchase the Partnership Common Units by paying the limited partner either the Cash Amount or the REIT Share Amount (generally one share of the Company's Common Stock for each Partnership Common Unit), as such terms are defined in the Partnership Agreement. The right to convert the Class 2 LTIP Units into Partnership Common Units and the right to receive the Cash Amount or the REIT Share Amount (in the Company's sole discretion) in exchange for Partnership Common Units do not have expiration dates.

F5 · shares: Amount represents the number of vested Class 2 LTIP Units that were converted into Partnership Common Units.

F2 · derivative.exercise_date: Subject to the conditions set forth in the Amended and Restated Agreement of Limited Partnership of the UDR Partnership, as amended (the "Partnership Agreement") and subject to the vesting conditions specified with respect to each Class 2 LTIP Unit, each Class 2 LTIP Unit may be converted into a unit of limited partnership of the UDR Partnership (a "Partnership Common Unit"), provided that such Class 2 LTIP Unit has been outstanding for at least two years from the date of grant.

F3 · derivative.exercise_date: A holder of Partnership Common Units has the right to require the UDR Partnership to redeem all or a portion of the Partnership Common Units held by the holder in exchange for a cash payment based on the market value of the Company's Common Stock at the time of redemption, as defined in the Partnership Agreement (the "Cash Amount"). However, the UDR Partnership's obligation to pay the Cash Amount is subject to the prior right of the Company to acquire such Partnership Common Units in exchange for either the Cash Amount or shares of the Company's Common Stock.

F4 · derivative.exercise_date: The Company, as the general partner of the UDR Partnership, may, in its sole discretion, purchase the Partnership Common Units by paying the limited partner either the Cash Amount or the REIT Share Amount (generally one share of the Company's Common Stock for each Partnership Common Unit), as such terms are defined in the Partnership Agreement. The right to convert the Class 2 LTIP Units into Partnership Common Units and the right to receive the Cash Amount or the REIT Share Amount (in the Company's sole discretion) in exchange for Partnership Common Units do not have expiration dates.

F4 · derivative.expiration_date: The Company, as the general partner of the UDR Partnership, may, in its sole discretion, purchase the Partnership Common Units by paying the limited partner either the Cash Amount or the REIT Share Amount (generally one share of the Company's Common Stock for each Partnership Common Unit), as such terms are defined in the Partnership Agreement. The right to convert the Class 2 LTIP Units into Partnership Common Units and the right to receive the Cash Amount or the REIT Share Amount (in the Company's sole discretion) in exchange for Partnership Common Units do not have expiration dates.

F2 · derivative.underlying: Subject to the conditions set forth in the Amended and Restated Agreement of Limited Partnership of the UDR Partnership, as amended (the "Partnership Agreement") and subject to the vesting conditions specified with respect to each Class 2 LTIP Unit, each Class 2 LTIP Unit may be converted into a unit of limited partnership of the UDR Partnership (a "Partnership Common Unit"), provided that such Class 2 LTIP Unit has been outstanding for at least two years from the date of grant.

F3 · derivative.underlying: A holder of Partnership Common Units has the right to require the UDR Partnership to redeem all or a portion of the Partnership Common Units held by the holder in exchange for a cash payment based on the market value of the Company's Common Stock at the time of redemption, as defined in the Partnership Agreement (the "Cash Amount"). However, the UDR Partnership's obligation to pay the Cash Amount is subject to the prior right of the Company to acquire such Partnership Common Units in exchange for either the Cash Amount or shares of the Company's Common Stock.

F4 · derivative.underlying: The Company, as the general partner of the UDR Partnership, may, in its sole discretion, purchase the Partnership Common Units by paying the limited partner either the Cash Amount or the REIT Share Amount (generally one share of the Company's Common Stock for each Partnership Common Unit), as such terms are defined in the Partnership Agreement. The right to convert the Class 2 LTIP Units into Partnership Common Units and the right to receive the Cash Amount or the REIT Share Amount (in the Company's sole discretion) in exchange for Partnership Common Units do not have expiration dates.

SEC source: 0001225208-23-002549 · doc4.xml · nonDerivative · entry 1

Lacy Michael D · CIK 0001827142 · SVP-Property Operations

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 14,099

F1 · kind: Represents shares of restricted stock withheld to satisfy the reporting person's tax withholding obligation upon vesting of restricted stock. The deemed disposition of the withheld shares is exempt pursuant to Rule 16b-3(e).

SEC source: 0001225208-23-002159 · doc4.xml · nonDerivative · entry 1

Hofmeister Tracy L · CIK 0001614109 · SVP - Chief Accounting Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 9,576

F1 · kind: Represents shares of restricted stock withheld to satisfy the reporting person's tax withholding obligation upon vesting of restricted stock. The deemed disposition of the withheld shares is exempt pursuant to Rule 16b-3(e).

SEC source: 0001225208-23-002158 · doc4.xml · nonDerivative · entry 1

Lacy Michael D · CIK 0001827142 · SVP-Property Operations

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 14,621

F1 · kind: Represents shares of restricted stock withheld to satisfy the reporting person's tax withholding obligation upon vesting of restricted stock. The deemed disposition of the withheld shares is exempt pursuant to Rule 16b-3(e).

SEC source: 0001096906-23-000359 · form4.xml · derivative · entry 3

Hofmeister Tracy L · CIK 0001614109 · SVP - Chief Accounting Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 3,311

Underlying: Common Stock · 19 shares

Expires not disclosed

F2 · security: Represents Class 2 LTIP Units (the "Class 2 LTIP Units") in United Dominion Realty, L.P., a Delaware limited partnership (the "UDR Partnership"). UDR, Inc. (the "Company") is the parent company and sole general partner of the UDR Partnership.

F3 · derivative.exercise_price: Subject to the conditions set forth in the Amended and Restated Agreement of Limited Partnership of the UDR Partnership (the "Partnership Agreement") and subject to the vesting conditions specified with respect to each Class 2 LTIP Unit, each Class 2 LTIP Unit may be converted, at the election of the holder, into a unit of limited partnership of the UDR Partnership (a "Partnership Common Unit"), provided that such Class 2 LTIP Unit has been outstanding for at least two years from the date of grant.

F4 · derivative.exercise_price: A holder of Partnership Common Units has the right to require the UDR Partnership to redeem all or a portion of the Partnership Common Units held by the holder in exchange for a cash payment based on the market value of the Company's Common Stock at the time of redemption, as defined in the Partnership Agreement (the "Cash Amount"). However, the UDR Partnership's obligation to pay the Cash Amount is subject the prior right of the Company to acquire such Partnership Common Units in exchange for either the Cash Amount or shares of the Company's Common Stock.

F5 · derivative.exercise_price: The Company, as the general partner of the UDR Partnership, may, in its sole discretion, purchase the Partnership Common Units by paying the limited partner either the Cash Amount or the REIT Share Amount (generally one share of the Company's Common Stock for each Partnership Common Unit), as such terms are defined in the Partnership Agreement. The right to convert the Class 2 LTIP Units into Partnership Common Units and the right to receive the Cash Amount or the REIT Share Amount (in the Company's sole discretion) in exchange for Partnership Common Units do not have expiration dates.

F6 · shares: The Class 2 LTIP Units vest only to the extent that pre-established performance metrics are met for the applicable performance period, subject to continuing employment. Except as otherwise set forth in the UDR, Inc. 1999 Long-Term Incentive Plan, as amended from time to time, except Section 14.9 thereof, the Partnership Agreement, or as determined by the Compensation and Management Development Committee of the Company's Board of Directors (the "Committee"), in its sole discretion, vesting of Class 2 LTIP Units shall cease upon the date of termination for any reason other than in the event of a change of control of the Company, and no unvested Class 2 LTIP Units shall thereafter become vested.

F7 · shares: In the event of a change of control of the Company, the Class 2 LTIP Units will vest only if the holder's employment or other service relationship with the Company is terminated by the Company without cause, or by the holder for good reason, in each case on or within 12 months following the date of a change of control. Further, all restrictions on outstanding awards that have been earned shall lapse upon the Company's termination of the holder's employment without cause or the holder's termination of employment for good reason.

F8 · shares: The vesting of these Class 2 LTIP Units occurs on the date the Committee determines performance (the "Determination Date") for the applicable performance period ending on December 31, 2022 based on the achievement of a pre-determined FFO as Adjusted Goal over a one-year period. These Class 2 LTIP Units will vest 50 percent on the Determination Date, and 50 percent on the one-year anniversary thereof.

F9 · shares: Amount represents the portion of the award (including dividends) forfeited when performance results were determined by the Committee for the applicable portion of the award on the Determination Date, February 9, 2023.

F3 · derivative.exercise_date: Subject to the conditions set forth in the Amended and Restated Agreement of Limited Partnership of the UDR Partnership (the "Partnership Agreement") and subject to the vesting conditions specified with respect to each Class 2 LTIP Unit, each Class 2 LTIP Unit may be converted, at the election of the holder, into a unit of limited partnership of the UDR Partnership (a "Partnership Common Unit"), provided that such Class 2 LTIP Unit has been outstanding for at least two years from the date of grant.

F4 · derivative.exercise_date: A holder of Partnership Common Units has the right to require the UDR Partnership to redeem all or a portion of the Partnership Common Units held by the holder in exchange for a cash payment based on the market value of the Company's Common Stock at the time of redemption, as defined in the Partnership Agreement (the "Cash Amount"). However, the UDR Partnership's obligation to pay the Cash Amount is subject the prior right of the Company to acquire such Partnership Common Units in exchange for either the Cash Amount or shares of the Company's Common Stock.

F5 · derivative.exercise_date: The Company, as the general partner of the UDR Partnership, may, in its sole discretion, purchase the Partnership Common Units by paying the limited partner either the Cash Amount or the REIT Share Amount (generally one share of the Company's Common Stock for each Partnership Common Unit), as such terms are defined in the Partnership Agreement. The right to convert the Class 2 LTIP Units into Partnership Common Units and the right to receive the Cash Amount or the REIT Share Amount (in the Company's sole discretion) in exchange for Partnership Common Units do not have expiration dates.

F6 · derivative.exercise_date: The Class 2 LTIP Units vest only to the extent that pre-established performance metrics are met for the applicable performance period, subject to continuing employment. Except as otherwise set forth in the UDR, Inc. 1999 Long-Term Incentive Plan, as amended from time to time, except Section 14.9 thereof, the Partnership Agreement, or as determined by the Compensation and Management Development Committee of the Company's Board of Directors (the "Committee"), in its sole discretion, vesting of Class 2 LTIP Units shall cease upon the date of termination for any reason other than in the event of a change of control of the Company, and no unvested Class 2 LTIP Units shall thereafter become vested.

F7 · derivative.exercise_date: In the event of a change of control of the Company, the Class 2 LTIP Units will vest only if the holder's employment or other service relationship with the Company is terminated by the Company without cause, or by the holder for good reason, in each case on or within 12 months following the date of a change of control. Further, all restrictions on outstanding awards that have been earned shall lapse upon the Company's termination of the holder's employment without cause or the holder's termination of employment for good reason.

F8 · derivative.exercise_date: The vesting of these Class 2 LTIP Units occurs on the date the Committee determines performance (the "Determination Date") for the applicable performance period ending on December 31, 2022 based on the achievement of a pre-determined FFO as Adjusted Goal over a one-year period. These Class 2 LTIP Units will vest 50 percent on the Determination Date, and 50 percent on the one-year anniversary thereof.

F4 · derivative.expiration_date: A holder of Partnership Common Units has the right to require the UDR Partnership to redeem all or a portion of the Partnership Common Units held by the holder in exchange for a cash payment based on the market value of the Company's Common Stock at the time of redemption, as defined in the Partnership Agreement (the "Cash Amount"). However, the UDR Partnership's obligation to pay the Cash Amount is subject the prior right of the Company to acquire such Partnership Common Units in exchange for either the Cash Amount or shares of the Company's Common Stock.

F3 · derivative.underlying: Subject to the conditions set forth in the Amended and Restated Agreement of Limited Partnership of the UDR Partnership (the "Partnership Agreement") and subject to the vesting conditions specified with respect to each Class 2 LTIP Unit, each Class 2 LTIP Unit may be converted, at the election of the holder, into a unit of limited partnership of the UDR Partnership (a "Partnership Common Unit"), provided that such Class 2 LTIP Unit has been outstanding for at least two years from the date of grant.

F4 · derivative.underlying: A holder of Partnership Common Units has the right to require the UDR Partnership to redeem all or a portion of the Partnership Common Units held by the holder in exchange for a cash payment based on the market value of the Company's Common Stock at the time of redemption, as defined in the Partnership Agreement (the "Cash Amount"). However, the UDR Partnership's obligation to pay the Cash Amount is subject the prior right of the Company to acquire such Partnership Common Units in exchange for either the Cash Amount or shares of the Company's Common Stock.

F5 · derivative.underlying: The Company, as the general partner of the UDR Partnership, may, in its sole discretion, purchase the Partnership Common Units by paying the limited partner either the Cash Amount or the REIT Share Amount (generally one share of the Company's Common Stock for each Partnership Common Unit), as such terms are defined in the Partnership Agreement. The right to convert the Class 2 LTIP Units into Partnership Common Units and the right to receive the Cash Amount or the REIT Share Amount (in the Company's sole discretion) in exchange for Partnership Common Units do not have expiration dates.

SEC source: 0001096906-23-000359 · form4.xml · nonDerivative · entry 2

Hofmeister Tracy L · CIK 0001614109 · SVP - Chief Accounting Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 9,692

F1 · kind: Represents shares of restricted stock withheld to satisfy the reporting person's tax withholding obligations upon vesting of restricted stock. The deemed disposition of the withheld shares is exempt pursuant to Rule 16b-3(e).

SEC source: 0001096906-23-000359 · form4.xml · nonDerivative · entry 1

Hofmeister Tracy L · CIK 0001614109 · SVP - Chief Accounting Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 9,892

SEC source: 0001096906-23-000357 · form4.xml · derivative · entry 5

Lacy Michael D · CIK 0001827142 · SVP-Property Operations

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 168,997

Underlying: Common Stock · 817 shares

Expires not disclosed

F2 · security: Represents Class 2 LTIP Units (the "Class 2 LTIP Units") in United Dominion Realty, L.P., a Delaware limited partnership (the "UDR Partnership"). UDR, Inc. (the "Company") is the parent company and sole general partner of the UDR Partnership.

F3 · derivative.exercise_price: Subject to the conditions set forth in the Amended and Restated Agreement of Limited Partnership of the UDR Partnership (the "Partnership Agreement") and subject to the vesting conditions specified with respect to each Class 2 LTIP Unit, each Class 2 LTIP Unit may be converted, at the election of the holder, into a unit of limited partnership of the UDR Partnership (a "Partnership Common Unit"), provided that such Class 2 LTIP Unit has been outstanding for at least two years from the date of grant.

F4 · derivative.exercise_price: A holder of Partnership Common Units has the right to require the UDR Partnership to redeem all or a portion of the Partnership Common Units held by the holder in exchange for a cash payment based on the market value of the Company's Common Stock at the time of redemption, as defined in the Partnership Agreement (the "Cash Amount"). However, the UDR Partnership's obligation to pay the Cash Amount is subject the prior right of the Company to acquire such Partnership Common Units in exchange for either the Cash Amount or shares of the Company's Common Stock.

F5 · derivative.exercise_price: The Company, as the general partner of the UDR Partnership, may, in its sole discretion, purchase the Partnership Common Units by paying the limited partner either the Cash Amount or the REIT Share Amount (generally one share of the Company's Common Stock for each Partnership Common Unit), as such terms are defined in the Partnership Agreement. The right to convert the Class 2 LTIP Units into Partnership Common Units and the right to receive the Cash Amount or the REIT Share Amount (in the Company's sole discretion) in exchange for Partnership Common Units do not have expiration dates.

F6 · shares: The Class 2 LTIP Units vest only to the extent that pre-established performance metrics are met for the applicable performance period, subject to continuing employment. Except as otherwise set forth in the UDR, Inc. 1999 Long-Term Incentive Plan, as amended from time to time, except Section 14.9 thereof, the Partnership Agreement, or as determined by the Compensation and Management Development Committee of the Company's Board of Directors (the "Committee"), in its sole discretion, for awards made prior to 2021, vesting of Class 2 LTIP Units shall cease upon the date of termination for any reason, and no unvested Class 2 LTIP Units shall thereafter become vested.

F7 · shares: For awards made in 2021 and thereafter, in the event of a change of control of the Company, the Class 2 LTIP Units will vest only if the holder's employment or other service relationship with the Company is terminated by the Company without cause, or by the holder for good reason, in each case on or within 12 months following the date of a change of control. Further, all restrictions on outstanding awards that have been earned shall lapse upon the Company's termination of the holder's employment without cause or the holder's termination of employment for good reason.

F12 · shares: The vesting of these Class 2 LTIP Units shall be determined as follows: 30 percent shall be based upon the Committee's subjective determination, in its sole discretion, of the executive officer's performance with respect to individual performance objectives; and 70 percent shall be based on pre-determined financial metrics. These Class 2 LTIP Units will vest upon a determination by the Committee after the completion of the applicable performance period.

F13 · shares: The portion of these Class 2 LTIP Units for which vesting is based on the achievement of pre-determined short term incentive plan financial metrics is determined as follows: 40 percent based on an operations goal; 30 percent based on an FFO as Adjusted per share goal; 10 percent based on a transactions goal; 10 percent based on an ESG goal; and 10 percent based on an associate engagement & DEI goal, each over a one-year period.

F14 · shares: Amount represents the portion of the award (including dividends) forfeited when performance results were determined by the Committee for the applicable portion of the award on the Determination Date, February 9, 2023.

F3 · derivative.exercise_date: Subject to the conditions set forth in the Amended and Restated Agreement of Limited Partnership of the UDR Partnership (the "Partnership Agreement") and subject to the vesting conditions specified with respect to each Class 2 LTIP Unit, each Class 2 LTIP Unit may be converted, at the election of the holder, into a unit of limited partnership of the UDR Partnership (a "Partnership Common Unit"), provided that such Class 2 LTIP Unit has been outstanding for at least two years from the date of grant.

F4 · derivative.exercise_date: A holder of Partnership Common Units has the right to require the UDR Partnership to redeem all or a portion of the Partnership Common Units held by the holder in exchange for a cash payment based on the market value of the Company's Common Stock at the time of redemption, as defined in the Partnership Agreement (the "Cash Amount"). However, the UDR Partnership's obligation to pay the Cash Amount is subject the prior right of the Company to acquire such Partnership Common Units in exchange for either the Cash Amount or shares of the Company's Common Stock.

F5 · derivative.exercise_date: The Company, as the general partner of the UDR Partnership, may, in its sole discretion, purchase the Partnership Common Units by paying the limited partner either the Cash Amount or the REIT Share Amount (generally one share of the Company's Common Stock for each Partnership Common Unit), as such terms are defined in the Partnership Agreement. The right to convert the Class 2 LTIP Units into Partnership Common Units and the right to receive the Cash Amount or the REIT Share Amount (in the Company's sole discretion) in exchange for Partnership Common Units do not have expiration dates.

F6 · derivative.exercise_date: The Class 2 LTIP Units vest only to the extent that pre-established performance metrics are met for the applicable performance period, subject to continuing employment. Except as otherwise set forth in the UDR, Inc. 1999 Long-Term Incentive Plan, as amended from time to time, except Section 14.9 thereof, the Partnership Agreement, or as determined by the Compensation and Management Development Committee of the Company's Board of Directors (the "Committee"), in its sole discretion, for awards made prior to 2021, vesting of Class 2 LTIP Units shall cease upon the date of termination for any reason, and no unvested Class 2 LTIP Units shall thereafter become vested.

F7 · derivative.exercise_date: For awards made in 2021 and thereafter, in the event of a change of control of the Company, the Class 2 LTIP Units will vest only if the holder's employment or other service relationship with the Company is terminated by the Company without cause, or by the holder for good reason, in each case on or within 12 months following the date of a change of control. Further, all restrictions on outstanding awards that have been earned shall lapse upon the Company's termination of the holder's employment without cause or the holder's termination of employment for good reason.

F12 · derivative.exercise_date: The vesting of these Class 2 LTIP Units shall be determined as follows: 30 percent shall be based upon the Committee's subjective determination, in its sole discretion, of the executive officer's performance with respect to individual performance objectives; and 70 percent shall be based on pre-determined financial metrics. These Class 2 LTIP Units will vest upon a determination by the Committee after the completion of the applicable performance period.

F13 · derivative.exercise_date: The portion of these Class 2 LTIP Units for which vesting is based on the achievement of pre-determined short term incentive plan financial metrics is determined as follows: 40 percent based on an operations goal; 30 percent based on an FFO as Adjusted per share goal; 10 percent based on a transactions goal; 10 percent based on an ESG goal; and 10 percent based on an associate engagement & DEI goal, each over a one-year period.

F5 · derivative.expiration_date: The Company, as the general partner of the UDR Partnership, may, in its sole discretion, purchase the Partnership Common Units by paying the limited partner either the Cash Amount or the REIT Share Amount (generally one share of the Company's Common Stock for each Partnership Common Unit), as such terms are defined in the Partnership Agreement. The right to convert the Class 2 LTIP Units into Partnership Common Units and the right to receive the Cash Amount or the REIT Share Amount (in the Company's sole discretion) in exchange for Partnership Common Units do not have expiration dates.

F3 · derivative.underlying: Subject to the conditions set forth in the Amended and Restated Agreement of Limited Partnership of the UDR Partnership (the "Partnership Agreement") and subject to the vesting conditions specified with respect to each Class 2 LTIP Unit, each Class 2 LTIP Unit may be converted, at the election of the holder, into a unit of limited partnership of the UDR Partnership (a "Partnership Common Unit"), provided that such Class 2 LTIP Unit has been outstanding for at least two years from the date of grant.

F4 · derivative.underlying: A holder of Partnership Common Units has the right to require the UDR Partnership to redeem all or a portion of the Partnership Common Units held by the holder in exchange for a cash payment based on the market value of the Company's Common Stock at the time of redemption, as defined in the Partnership Agreement (the "Cash Amount"). However, the UDR Partnership's obligation to pay the Cash Amount is subject the prior right of the Company to acquire such Partnership Common Units in exchange for either the Cash Amount or shares of the Company's Common Stock.

F5 · derivative.underlying: The Company, as the general partner of the UDR Partnership, may, in its sole discretion, purchase the Partnership Common Units by paying the limited partner either the Cash Amount or the REIT Share Amount (generally one share of the Company's Common Stock for each Partnership Common Unit), as such terms are defined in the Partnership Agreement. The right to convert the Class 2 LTIP Units into Partnership Common Units and the right to receive the Cash Amount or the REIT Share Amount (in the Company's sole discretion) in exchange for Partnership Common Units do not have expiration dates.

SEC source: 0001096906-23-000357 · form4.xml · derivative · entry 4

Lacy Michael D · CIK 0001827142 · SVP-Property Operations

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 169,814

Underlying: Common Stock · 116 shares

Expires not disclosed

F2 · security: Represents Class 2 LTIP Units (the "Class 2 LTIP Units") in United Dominion Realty, L.P., a Delaware limited partnership (the "UDR Partnership"). UDR, Inc. (the "Company") is the parent company and sole general partner of the UDR Partnership.

F3 · derivative.exercise_price: Subject to the conditions set forth in the Amended and Restated Agreement of Limited Partnership of the UDR Partnership (the "Partnership Agreement") and subject to the vesting conditions specified with respect to each Class 2 LTIP Unit, each Class 2 LTIP Unit may be converted, at the election of the holder, into a unit of limited partnership of the UDR Partnership (a "Partnership Common Unit"), provided that such Class 2 LTIP Unit has been outstanding for at least two years from the date of grant.

F4 · derivative.exercise_price: A holder of Partnership Common Units has the right to require the UDR Partnership to redeem all or a portion of the Partnership Common Units held by the holder in exchange for a cash payment based on the market value of the Company's Common Stock at the time of redemption, as defined in the Partnership Agreement (the "Cash Amount"). However, the UDR Partnership's obligation to pay the Cash Amount is subject the prior right of the Company to acquire such Partnership Common Units in exchange for either the Cash Amount or shares of the Company's Common Stock.

F5 · derivative.exercise_price: The Company, as the general partner of the UDR Partnership, may, in its sole discretion, purchase the Partnership Common Units by paying the limited partner either the Cash Amount or the REIT Share Amount (generally one share of the Company's Common Stock for each Partnership Common Unit), as such terms are defined in the Partnership Agreement. The right to convert the Class 2 LTIP Units into Partnership Common Units and the right to receive the Cash Amount or the REIT Share Amount (in the Company's sole discretion) in exchange for Partnership Common Units do not have expiration dates.

F6 · shares: The Class 2 LTIP Units vest only to the extent that pre-established performance metrics are met for the applicable performance period, subject to continuing employment. Except as otherwise set forth in the UDR, Inc. 1999 Long-Term Incentive Plan, as amended from time to time, except Section 14.9 thereof, the Partnership Agreement, or as determined by the Compensation and Management Development Committee of the Company's Board of Directors (the "Committee"), in its sole discretion, for awards made prior to 2021, vesting of Class 2 LTIP Units shall cease upon the date of termination for any reason, and no unvested Class 2 LTIP Units shall thereafter become vested.

F7 · shares: For awards made in 2021 and thereafter, in the event of a change of control of the Company, the Class 2 LTIP Units will vest only if the holder's employment or other service relationship with the Company is terminated by the Company without cause, or by the holder for good reason, in each case on or within 12 months following the date of a change of control. Further, all restrictions on outstanding awards that have been earned shall lapse upon the Company's termination of the holder's employment without cause or the holder's termination of employment for good reason.

F10 · shares: The vesting of these Class 2 LTIP Units occurs on the Determination Date for the applicable performance period ending on December 31, 2022 based on the achievement of a pre-determined FFO as Adjusted Goal over a one-year period. These Class 2 LTIP Units will vest 50 percent on the Determination Date, and 50 percent on the one-year anniversary thereof.

F11 · shares: Amount represents the portion of the award (including dividends) forfeited when performance results were determined by the Committee for the applicable portion of the award on the Determination Date, February 9, 2023.

F3 · derivative.exercise_date: Subject to the conditions set forth in the Amended and Restated Agreement of Limited Partnership of the UDR Partnership (the "Partnership Agreement") and subject to the vesting conditions specified with respect to each Class 2 LTIP Unit, each Class 2 LTIP Unit may be converted, at the election of the holder, into a unit of limited partnership of the UDR Partnership (a "Partnership Common Unit"), provided that such Class 2 LTIP Unit has been outstanding for at least two years from the date of grant.

F4 · derivative.exercise_date: A holder of Partnership Common Units has the right to require the UDR Partnership to redeem all or a portion of the Partnership Common Units held by the holder in exchange for a cash payment based on the market value of the Company's Common Stock at the time of redemption, as defined in the Partnership Agreement (the "Cash Amount"). However, the UDR Partnership's obligation to pay the Cash Amount is subject the prior right of the Company to acquire such Partnership Common Units in exchange for either the Cash Amount or shares of the Company's Common Stock.

F5 · derivative.exercise_date: The Company, as the general partner of the UDR Partnership, may, in its sole discretion, purchase the Partnership Common Units by paying the limited partner either the Cash Amount or the REIT Share Amount (generally one share of the Company's Common Stock for each Partnership Common Unit), as such terms are defined in the Partnership Agreement. The right to convert the Class 2 LTIP Units into Partnership Common Units and the right to receive the Cash Amount or the REIT Share Amount (in the Company's sole discretion) in exchange for Partnership Common Units do not have expiration dates.

F6 · derivative.exercise_date: The Class 2 LTIP Units vest only to the extent that pre-established performance metrics are met for the applicable performance period, subject to continuing employment. Except as otherwise set forth in the UDR, Inc. 1999 Long-Term Incentive Plan, as amended from time to time, except Section 14.9 thereof, the Partnership Agreement, or as determined by the Compensation and Management Development Committee of the Company's Board of Directors (the "Committee"), in its sole discretion, for awards made prior to 2021, vesting of Class 2 LTIP Units shall cease upon the date of termination for any reason, and no unvested Class 2 LTIP Units shall thereafter become vested.

F7 · derivative.exercise_date: For awards made in 2021 and thereafter, in the event of a change of control of the Company, the Class 2 LTIP Units will vest only if the holder's employment or other service relationship with the Company is terminated by the Company without cause, or by the holder for good reason, in each case on or within 12 months following the date of a change of control. Further, all restrictions on outstanding awards that have been earned shall lapse upon the Company's termination of the holder's employment without cause or the holder's termination of employment for good reason.

F10 · derivative.exercise_date: The vesting of these Class 2 LTIP Units occurs on the Determination Date for the applicable performance period ending on December 31, 2022 based on the achievement of a pre-determined FFO as Adjusted Goal over a one-year period. These Class 2 LTIP Units will vest 50 percent on the Determination Date, and 50 percent on the one-year anniversary thereof.

F5 · derivative.expiration_date: The Company, as the general partner of the UDR Partnership, may, in its sole discretion, purchase the Partnership Common Units by paying the limited partner either the Cash Amount or the REIT Share Amount (generally one share of the Company's Common Stock for each Partnership Common Unit), as such terms are defined in the Partnership Agreement. The right to convert the Class 2 LTIP Units into Partnership Common Units and the right to receive the Cash Amount or the REIT Share Amount (in the Company's sole discretion) in exchange for Partnership Common Units do not have expiration dates.

F3 · derivative.underlying: Subject to the conditions set forth in the Amended and Restated Agreement of Limited Partnership of the UDR Partnership (the "Partnership Agreement") and subject to the vesting conditions specified with respect to each Class 2 LTIP Unit, each Class 2 LTIP Unit may be converted, at the election of the holder, into a unit of limited partnership of the UDR Partnership (a "Partnership Common Unit"), provided that such Class 2 LTIP Unit has been outstanding for at least two years from the date of grant.

F4 · derivative.underlying: A holder of Partnership Common Units has the right to require the UDR Partnership to redeem all or a portion of the Partnership Common Units held by the holder in exchange for a cash payment based on the market value of the Company's Common Stock at the time of redemption, as defined in the Partnership Agreement (the "Cash Amount"). However, the UDR Partnership's obligation to pay the Cash Amount is subject the prior right of the Company to acquire such Partnership Common Units in exchange for either the Cash Amount or shares of the Company's Common Stock.

F5 · derivative.underlying: The Company, as the general partner of the UDR Partnership, may, in its sole discretion, purchase the Partnership Common Units by paying the limited partner either the Cash Amount or the REIT Share Amount (generally one share of the Company's Common Stock for each Partnership Common Unit), as such terms are defined in the Partnership Agreement. The right to convert the Class 2 LTIP Units into Partnership Common Units and the right to receive the Cash Amount or the REIT Share Amount (in the Company's sole discretion) in exchange for Partnership Common Units do not have expiration dates.

SEC source: 0001096906-23-000357 · form4.xml · derivative · entry 3

Lacy Michael D · CIK 0001827142 · SVP-Property Operations

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 169,930

Underlying: Common Stock · 2,385 shares

Expires not disclosed

F2 · security: Represents Class 2 LTIP Units (the "Class 2 LTIP Units") in United Dominion Realty, L.P., a Delaware limited partnership (the "UDR Partnership"). UDR, Inc. (the "Company") is the parent company and sole general partner of the UDR Partnership.

F3 · derivative.exercise_price: Subject to the conditions set forth in the Amended and Restated Agreement of Limited Partnership of the UDR Partnership (the "Partnership Agreement") and subject to the vesting conditions specified with respect to each Class 2 LTIP Unit, each Class 2 LTIP Unit may be converted, at the election of the holder, into a unit of limited partnership of the UDR Partnership (a "Partnership Common Unit"), provided that such Class 2 LTIP Unit has been outstanding for at least two years from the date of grant.

F4 · derivative.exercise_price: A holder of Partnership Common Units has the right to require the UDR Partnership to redeem all or a portion of the Partnership Common Units held by the holder in exchange for a cash payment based on the market value of the Company's Common Stock at the time of redemption, as defined in the Partnership Agreement (the "Cash Amount"). However, the UDR Partnership's obligation to pay the Cash Amount is subject the prior right of the Company to acquire such Partnership Common Units in exchange for either the Cash Amount or shares of the Company's Common Stock.

F5 · derivative.exercise_price: The Company, as the general partner of the UDR Partnership, may, in its sole discretion, purchase the Partnership Common Units by paying the limited partner either the Cash Amount or the REIT Share Amount (generally one share of the Company's Common Stock for each Partnership Common Unit), as such terms are defined in the Partnership Agreement. The right to convert the Class 2 LTIP Units into Partnership Common Units and the right to receive the Cash Amount or the REIT Share Amount (in the Company's sole discretion) in exchange for Partnership Common Units do not have expiration dates.

F6 · shares: The Class 2 LTIP Units vest only to the extent that pre-established performance metrics are met for the applicable performance period, subject to continuing employment. Except as otherwise set forth in the UDR, Inc. 1999 Long-Term Incentive Plan, as amended from time to time, except Section 14.9 thereof, the Partnership Agreement, or as determined by the Compensation and Management Development Committee of the Company's Board of Directors (the "Committee"), in its sole discretion, for awards made prior to 2021, vesting of Class 2 LTIP Units shall cease upon the date of termination for any reason, and no unvested Class 2 LTIP Units shall thereafter become vested.

F7 · shares: For awards made in 2021 and thereafter, in the event of a change of control of the Company, the Class 2 LTIP Units will vest only if the holder's employment or other service relationship with the Company is terminated by the Company without cause, or by the holder for good reason, in each case on or within 12 months following the date of a change of control. Further, all restrictions on outstanding awards that have been earned shall lapse upon the Company's termination of the holder's employment without cause or the holder's termination of employment for good reason.

F8 · shares: The vesting of these Class 2 LTIP Units occurs on the date the Committee determines performance (the "Determination Date") for the applicable performance period ending on December 31, 2022 based on: a goal measured by the Company's relative total shareholder return ("TSR") as compared to an apartment peer group over a three-year cumulative performance period; a goal measured by the Company's relative TSR as compared to a REIT peer group over a three-year cumulative performance period; a goal measured by the Company's relative FFO as Adjusted growth rate as compared to an apartment peer group over a three-year cumulative performance period; and a goal measured by the Company's relative FFO as Adjusted growth rate as compared to an apartment peer group over a three-year cumulative performance period.

F9 · shares: Amount represents the portion of the award (including dividends) forfeited when performance results were determined by the Committee for the applicable portion of the award on the Determination Date, February 9, 2023.

F3 · derivative.exercise_date: Subject to the conditions set forth in the Amended and Restated Agreement of Limited Partnership of the UDR Partnership (the "Partnership Agreement") and subject to the vesting conditions specified with respect to each Class 2 LTIP Unit, each Class 2 LTIP Unit may be converted, at the election of the holder, into a unit of limited partnership of the UDR Partnership (a "Partnership Common Unit"), provided that such Class 2 LTIP Unit has been outstanding for at least two years from the date of grant.

F4 · derivative.exercise_date: A holder of Partnership Common Units has the right to require the UDR Partnership to redeem all or a portion of the Partnership Common Units held by the holder in exchange for a cash payment based on the market value of the Company's Common Stock at the time of redemption, as defined in the Partnership Agreement (the "Cash Amount"). However, the UDR Partnership's obligation to pay the Cash Amount is subject the prior right of the Company to acquire such Partnership Common Units in exchange for either the Cash Amount or shares of the Company's Common Stock.

F5 · derivative.exercise_date: The Company, as the general partner of the UDR Partnership, may, in its sole discretion, purchase the Partnership Common Units by paying the limited partner either the Cash Amount or the REIT Share Amount (generally one share of the Company's Common Stock for each Partnership Common Unit), as such terms are defined in the Partnership Agreement. The right to convert the Class 2 LTIP Units into Partnership Common Units and the right to receive the Cash Amount or the REIT Share Amount (in the Company's sole discretion) in exchange for Partnership Common Units do not have expiration dates.

F6 · derivative.exercise_date: The Class 2 LTIP Units vest only to the extent that pre-established performance metrics are met for the applicable performance period, subject to continuing employment. Except as otherwise set forth in the UDR, Inc. 1999 Long-Term Incentive Plan, as amended from time to time, except Section 14.9 thereof, the Partnership Agreement, or as determined by the Compensation and Management Development Committee of the Company's Board of Directors (the "Committee"), in its sole discretion, for awards made prior to 2021, vesting of Class 2 LTIP Units shall cease upon the date of termination for any reason, and no unvested Class 2 LTIP Units shall thereafter become vested.

F7 · derivative.exercise_date: For awards made in 2021 and thereafter, in the event of a change of control of the Company, the Class 2 LTIP Units will vest only if the holder's employment or other service relationship with the Company is terminated by the Company without cause, or by the holder for good reason, in each case on or within 12 months following the date of a change of control. Further, all restrictions on outstanding awards that have been earned shall lapse upon the Company's termination of the holder's employment without cause or the holder's termination of employment for good reason.

F8 · derivative.exercise_date: The vesting of these Class 2 LTIP Units occurs on the date the Committee determines performance (the "Determination Date") for the applicable performance period ending on December 31, 2022 based on: a goal measured by the Company's relative total shareholder return ("TSR") as compared to an apartment peer group over a three-year cumulative performance period; a goal measured by the Company's relative TSR as compared to a REIT peer group over a three-year cumulative performance period; a goal measured by the Company's relative FFO as Adjusted growth rate as compared to an apartment peer group over a three-year cumulative performance period; and a goal measured by the Company's relative FFO as Adjusted growth rate as compared to an apartment peer group over a three-year cumulative performance period.

F5 · derivative.expiration_date: The Company, as the general partner of the UDR Partnership, may, in its sole discretion, purchase the Partnership Common Units by paying the limited partner either the Cash Amount or the REIT Share Amount (generally one share of the Company's Common Stock for each Partnership Common Unit), as such terms are defined in the Partnership Agreement. The right to convert the Class 2 LTIP Units into Partnership Common Units and the right to receive the Cash Amount or the REIT Share Amount (in the Company's sole discretion) in exchange for Partnership Common Units do not have expiration dates.

F3 · derivative.underlying: Subject to the conditions set forth in the Amended and Restated Agreement of Limited Partnership of the UDR Partnership (the "Partnership Agreement") and subject to the vesting conditions specified with respect to each Class 2 LTIP Unit, each Class 2 LTIP Unit may be converted, at the election of the holder, into a unit of limited partnership of the UDR Partnership (a "Partnership Common Unit"), provided that such Class 2 LTIP Unit has been outstanding for at least two years from the date of grant.

F4 · derivative.underlying: A holder of Partnership Common Units has the right to require the UDR Partnership to redeem all or a portion of the Partnership Common Units held by the holder in exchange for a cash payment based on the market value of the Company's Common Stock at the time of redemption, as defined in the Partnership Agreement (the "Cash Amount"). However, the UDR Partnership's obligation to pay the Cash Amount is subject the prior right of the Company to acquire such Partnership Common Units in exchange for either the Cash Amount or shares of the Company's Common Stock.

F5 · derivative.underlying: The Company, as the general partner of the UDR Partnership, may, in its sole discretion, purchase the Partnership Common Units by paying the limited partner either the Cash Amount or the REIT Share Amount (generally one share of the Company's Common Stock for each Partnership Common Unit), as such terms are defined in the Partnership Agreement. The right to convert the Class 2 LTIP Units into Partnership Common Units and the right to receive the Cash Amount or the REIT Share Amount (in the Company's sole discretion) in exchange for Partnership Common Units do not have expiration dates.

SEC source: 0001096906-23-000357 · form4.xml · nonDerivative · entry 2

Lacy Michael D · CIK 0001827142 · SVP-Property Operations

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 14,873

F1 · kind: Represents shares of restricted stock withheld to satisfy the reporting person's tax withholding obligation upon vesting of restricted stock. The deemed disposition of the withheld shares is exempt pursuant to Rule 16b-3(e).

SEC source: 0001096906-23-000357 · form4.xml · nonDerivative · entry 1

Lacy Michael D · CIK 0001827142 · SVP-Property Operations

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 16,104

SEC source: 0001096906-23-000358 · form4.xml · derivative · entry 3

TOOMEY THOMAS W · CIK 0001195697 · Director · Chairman and CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 766,070

Underlying: Common Stock · 11,826 shares

Expires not disclosed

F1 · security: Represents Class 2 LTIP Units (the "Class 2 LTIP Units") in United Dominion Realty, L.P., a Delaware limited partnership (the "UDR Partnership"). UDR, Inc. (the "Company") is the parent company and sole general partner of the UDR Partnership.

F2 · derivative.exercise_price: Subject to the conditions set forth in the Amended and Restated Agreement of Limited Partnership of the UDR Partnership (the "Partnership Agreement") and subject to the vesting conditions specified with respect to each Class 2 LTIP Unit, each Class 2 LTIP Unit may be converted, at the election of the holder, into a unit of limited partnership of the UDR Partnership (a "Partnership Common Unit"), provided that such Class 2 LTIP Unit has been outstanding for at least two years from the date of grant.

F3 · derivative.exercise_price: A holder of Partnership Common Units has the right to require the UDR Partnership to redeem all or a portion of the Partnership Common Units held by the holder in exchange for a cash payment based on the market value of the Company's Common Stock at the time of redemption, as defined in the Partnership Agreement (the "Cash Amount"). However, the UDR Partnership's obligation to pay the Cash Amount is subject the prior right of the Company to acquire such Partnership Common Units in exchange for either the Cash Amount or shares of the Company's Common Stock.

F4 · derivative.exercise_price: The Company, as the general partner of the UDR Partnership, may, in its sole discretion, purchase the Partnership Common Units by paying the limited partner either the Cash Amount or the REIT Share Amount (generally one share of the Company's Common Stock for each Partnership Common Unit), as such terms are defined in the Partnership Agreement. The right to convert the Class 2 LTIP Units into Partnership Common Units and the right to receive the Cash Amount or the REIT Share Amount (in the Company's sole discretion) in exchange for Partnership Common Units do not have expiration dates.

F5 · shares: The Class 2 LTIP Units vest only to the extent that pre-established performance metrics are met for the applicable performance period, subject to continuing employment. Except as otherwise set forth in the UDR, Inc. 1999 Long-Term Incentive Plan, as amended from time to time, except Section 14.9 thereof, the Partnership Agreement, or as determined by the Compensation and Management Development Committee of the Company's Board of Directors (the "Committee"), in its sole discretion, for awards made prior to 2021, vesting of Class 2 LTIP Units shall cease upon the date of termination for any reason, and no unvested Class 2 LTIP Units shall thereafter become vested.

F6 · shares: For awards made in 2021 and thereafter, in the event of a change of control of the Company, the Class 2 LTIP Units will vest only if the holder's employment or other service relationship with the Company is terminated by the Company without cause, or by the holder for good reason, in each case on or within 12 months following the date of a change of control. Further, all restrictions on outstanding awards that have been earned shall lapse upon the Company's termination of the holder's employment without cause or the holder's termination of employment for good reason.

F11 · shares: The vesting of these Class 2 LTIP Units shall be determined as follows: 30 percent shall be based upon the Committee's subjective determination, in its sole discretion, of the executive officer's performance with respect to individual performance objectives; and 70 percent shall be based on pre-determined financial metrics. These Class 2 LTIP Units will vest upon a determination by the Committee after the completion of the applicable performance period.

F12 · shares: The portion of these Class 2 LTIP Units for which vesting is based on the achievement of pre-determined short term incentive plan financial metrics is determined as follows: 30 percent based on an FFO as Adjusted per share goal; 30 percent based on an operations goal; 20 percent based on a transactions goal; 10 percent based on an ESG goal; and 10 percent based on an associate engagement & DEI goal, each over a one-year period.

F13 · shares: Amount represents the portion of the award (including dividends) forfeited when performance results were determined by the Committee for the applicable portion of the award on the Determination Date, February 9, 2023.

F2 · derivative.exercise_date: Subject to the conditions set forth in the Amended and Restated Agreement of Limited Partnership of the UDR Partnership (the "Partnership Agreement") and subject to the vesting conditions specified with respect to each Class 2 LTIP Unit, each Class 2 LTIP Unit may be converted, at the election of the holder, into a unit of limited partnership of the UDR Partnership (a "Partnership Common Unit"), provided that such Class 2 LTIP Unit has been outstanding for at least two years from the date of grant.

F3 · derivative.exercise_date: A holder of Partnership Common Units has the right to require the UDR Partnership to redeem all or a portion of the Partnership Common Units held by the holder in exchange for a cash payment based on the market value of the Company's Common Stock at the time of redemption, as defined in the Partnership Agreement (the "Cash Amount"). However, the UDR Partnership's obligation to pay the Cash Amount is subject the prior right of the Company to acquire such Partnership Common Units in exchange for either the Cash Amount or shares of the Company's Common Stock.

F4 · derivative.exercise_date: The Company, as the general partner of the UDR Partnership, may, in its sole discretion, purchase the Partnership Common Units by paying the limited partner either the Cash Amount or the REIT Share Amount (generally one share of the Company's Common Stock for each Partnership Common Unit), as such terms are defined in the Partnership Agreement. The right to convert the Class 2 LTIP Units into Partnership Common Units and the right to receive the Cash Amount or the REIT Share Amount (in the Company's sole discretion) in exchange for Partnership Common Units do not have expiration dates.

F5 · derivative.exercise_date: The Class 2 LTIP Units vest only to the extent that pre-established performance metrics are met for the applicable performance period, subject to continuing employment. Except as otherwise set forth in the UDR, Inc. 1999 Long-Term Incentive Plan, as amended from time to time, except Section 14.9 thereof, the Partnership Agreement, or as determined by the Compensation and Management Development Committee of the Company's Board of Directors (the "Committee"), in its sole discretion, for awards made prior to 2021, vesting of Class 2 LTIP Units shall cease upon the date of termination for any reason, and no unvested Class 2 LTIP Units shall thereafter become vested.

F6 · derivative.exercise_date: For awards made in 2021 and thereafter, in the event of a change of control of the Company, the Class 2 LTIP Units will vest only if the holder's employment or other service relationship with the Company is terminated by the Company without cause, or by the holder for good reason, in each case on or within 12 months following the date of a change of control. Further, all restrictions on outstanding awards that have been earned shall lapse upon the Company's termination of the holder's employment without cause or the holder's termination of employment for good reason.

F11 · derivative.exercise_date: The vesting of these Class 2 LTIP Units shall be determined as follows: 30 percent shall be based upon the Committee's subjective determination, in its sole discretion, of the executive officer's performance with respect to individual performance objectives; and 70 percent shall be based on pre-determined financial metrics. These Class 2 LTIP Units will vest upon a determination by the Committee after the completion of the applicable performance period.

F12 · derivative.exercise_date: The portion of these Class 2 LTIP Units for which vesting is based on the achievement of pre-determined short term incentive plan financial metrics is determined as follows: 30 percent based on an FFO as Adjusted per share goal; 30 percent based on an operations goal; 20 percent based on a transactions goal; 10 percent based on an ESG goal; and 10 percent based on an associate engagement & DEI goal, each over a one-year period.

F4 · derivative.expiration_date: The Company, as the general partner of the UDR Partnership, may, in its sole discretion, purchase the Partnership Common Units by paying the limited partner either the Cash Amount or the REIT Share Amount (generally one share of the Company's Common Stock for each Partnership Common Unit), as such terms are defined in the Partnership Agreement. The right to convert the Class 2 LTIP Units into Partnership Common Units and the right to receive the Cash Amount or the REIT Share Amount (in the Company's sole discretion) in exchange for Partnership Common Units do not have expiration dates.

F2 · derivative.underlying: Subject to the conditions set forth in the Amended and Restated Agreement of Limited Partnership of the UDR Partnership (the "Partnership Agreement") and subject to the vesting conditions specified with respect to each Class 2 LTIP Unit, each Class 2 LTIP Unit may be converted, at the election of the holder, into a unit of limited partnership of the UDR Partnership (a "Partnership Common Unit"), provided that such Class 2 LTIP Unit has been outstanding for at least two years from the date of grant.

F3 · derivative.underlying: A holder of Partnership Common Units has the right to require the UDR Partnership to redeem all or a portion of the Partnership Common Units held by the holder in exchange for a cash payment based on the market value of the Company's Common Stock at the time of redemption, as defined in the Partnership Agreement (the "Cash Amount"). However, the UDR Partnership's obligation to pay the Cash Amount is subject the prior right of the Company to acquire such Partnership Common Units in exchange for either the Cash Amount or shares of the Company's Common Stock.

F4 · derivative.underlying: The Company, as the general partner of the UDR Partnership, may, in its sole discretion, purchase the Partnership Common Units by paying the limited partner either the Cash Amount or the REIT Share Amount (generally one share of the Company's Common Stock for each Partnership Common Unit), as such terms are defined in the Partnership Agreement. The right to convert the Class 2 LTIP Units into Partnership Common Units and the right to receive the Cash Amount or the REIT Share Amount (in the Company's sole discretion) in exchange for Partnership Common Units do not have expiration dates.

SEC source: 0001096906-23-000358 · form4.xml · derivative · entry 2

TOOMEY THOMAS W · CIK 0001195697 · Director · Chairman and CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 777,896

Underlying: Common Stock · 1,257 shares

Expires not disclosed

F1 · security: Represents Class 2 LTIP Units (the "Class 2 LTIP Units") in United Dominion Realty, L.P., a Delaware limited partnership (the "UDR Partnership"). UDR, Inc. (the "Company") is the parent company and sole general partner of the UDR Partnership.

F2 · derivative.exercise_price: Subject to the conditions set forth in the Amended and Restated Agreement of Limited Partnership of the UDR Partnership (the "Partnership Agreement") and subject to the vesting conditions specified with respect to each Class 2 LTIP Unit, each Class 2 LTIP Unit may be converted, at the election of the holder, into a unit of limited partnership of the UDR Partnership (a "Partnership Common Unit"), provided that such Class 2 LTIP Unit has been outstanding for at least two years from the date of grant.

F3 · derivative.exercise_price: A holder of Partnership Common Units has the right to require the UDR Partnership to redeem all or a portion of the Partnership Common Units held by the holder in exchange for a cash payment based on the market value of the Company's Common Stock at the time of redemption, as defined in the Partnership Agreement (the "Cash Amount"). However, the UDR Partnership's obligation to pay the Cash Amount is subject the prior right of the Company to acquire such Partnership Common Units in exchange for either the Cash Amount or shares of the Company's Common Stock.

F4 · derivative.exercise_price: The Company, as the general partner of the UDR Partnership, may, in its sole discretion, purchase the Partnership Common Units by paying the limited partner either the Cash Amount or the REIT Share Amount (generally one share of the Company's Common Stock for each Partnership Common Unit), as such terms are defined in the Partnership Agreement. The right to convert the Class 2 LTIP Units into Partnership Common Units and the right to receive the Cash Amount or the REIT Share Amount (in the Company's sole discretion) in exchange for Partnership Common Units do not have expiration dates.

F5 · shares: The Class 2 LTIP Units vest only to the extent that pre-established performance metrics are met for the applicable performance period, subject to continuing employment. Except as otherwise set forth in the UDR, Inc. 1999 Long-Term Incentive Plan, as amended from time to time, except Section 14.9 thereof, the Partnership Agreement, or as determined by the Compensation and Management Development Committee of the Company's Board of Directors (the "Committee"), in its sole discretion, for awards made prior to 2021, vesting of Class 2 LTIP Units shall cease upon the date of termination for any reason, and no unvested Class 2 LTIP Units shall thereafter become vested.

F6 · shares: For awards made in 2021 and thereafter, in the event of a change of control of the Company, the Class 2 LTIP Units will vest only if the holder's employment or other service relationship with the Company is terminated by the Company without cause, or by the holder for good reason, in each case on or within 12 months following the date of a change of control. Further, all restrictions on outstanding awards that have been earned shall lapse upon the Company's termination of the holder's employment without cause or the holder's termination of employment for good reason.

F9 · shares: The vesting of these Class 2 LTIP Units occurs on the Determination Date for the applicable performance period ending on December 31, 2022 based on the achievement of a pre-determined FFO as Adjusted Goal over a one-year period. These Class 2 LTIP Units will vest 50 percent on the Determination Date, and 50 percent on the one-year anniversary thereof.

F10 · shares: Amount represents the portion of the award (including dividends) forfeited when performance results were determined by the Committee for the applicable portion of the award on the Determination Date, February 9, 2023.

F2 · derivative.exercise_date: Subject to the conditions set forth in the Amended and Restated Agreement of Limited Partnership of the UDR Partnership (the "Partnership Agreement") and subject to the vesting conditions specified with respect to each Class 2 LTIP Unit, each Class 2 LTIP Unit may be converted, at the election of the holder, into a unit of limited partnership of the UDR Partnership (a "Partnership Common Unit"), provided that such Class 2 LTIP Unit has been outstanding for at least two years from the date of grant.

F3 · derivative.exercise_date: A holder of Partnership Common Units has the right to require the UDR Partnership to redeem all or a portion of the Partnership Common Units held by the holder in exchange for a cash payment based on the market value of the Company's Common Stock at the time of redemption, as defined in the Partnership Agreement (the "Cash Amount"). However, the UDR Partnership's obligation to pay the Cash Amount is subject the prior right of the Company to acquire such Partnership Common Units in exchange for either the Cash Amount or shares of the Company's Common Stock.

F4 · derivative.exercise_date: The Company, as the general partner of the UDR Partnership, may, in its sole discretion, purchase the Partnership Common Units by paying the limited partner either the Cash Amount or the REIT Share Amount (generally one share of the Company's Common Stock for each Partnership Common Unit), as such terms are defined in the Partnership Agreement. The right to convert the Class 2 LTIP Units into Partnership Common Units and the right to receive the Cash Amount or the REIT Share Amount (in the Company's sole discretion) in exchange for Partnership Common Units do not have expiration dates.

F5 · derivative.exercise_date: The Class 2 LTIP Units vest only to the extent that pre-established performance metrics are met for the applicable performance period, subject to continuing employment. Except as otherwise set forth in the UDR, Inc. 1999 Long-Term Incentive Plan, as amended from time to time, except Section 14.9 thereof, the Partnership Agreement, or as determined by the Compensation and Management Development Committee of the Company's Board of Directors (the "Committee"), in its sole discretion, for awards made prior to 2021, vesting of Class 2 LTIP Units shall cease upon the date of termination for any reason, and no unvested Class 2 LTIP Units shall thereafter become vested.

F6 · derivative.exercise_date: For awards made in 2021 and thereafter, in the event of a change of control of the Company, the Class 2 LTIP Units will vest only if the holder's employment or other service relationship with the Company is terminated by the Company without cause, or by the holder for good reason, in each case on or within 12 months following the date of a change of control. Further, all restrictions on outstanding awards that have been earned shall lapse upon the Company's termination of the holder's employment without cause or the holder's termination of employment for good reason.

F9 · derivative.exercise_date: The vesting of these Class 2 LTIP Units occurs on the Determination Date for the applicable performance period ending on December 31, 2022 based on the achievement of a pre-determined FFO as Adjusted Goal over a one-year period. These Class 2 LTIP Units will vest 50 percent on the Determination Date, and 50 percent on the one-year anniversary thereof.

F4 · derivative.expiration_date: The Company, as the general partner of the UDR Partnership, may, in its sole discretion, purchase the Partnership Common Units by paying the limited partner either the Cash Amount or the REIT Share Amount (generally one share of the Company's Common Stock for each Partnership Common Unit), as such terms are defined in the Partnership Agreement. The right to convert the Class 2 LTIP Units into Partnership Common Units and the right to receive the Cash Amount or the REIT Share Amount (in the Company's sole discretion) in exchange for Partnership Common Units do not have expiration dates.

F2 · derivative.underlying: Subject to the conditions set forth in the Amended and Restated Agreement of Limited Partnership of the UDR Partnership (the "Partnership Agreement") and subject to the vesting conditions specified with respect to each Class 2 LTIP Unit, each Class 2 LTIP Unit may be converted, at the election of the holder, into a unit of limited partnership of the UDR Partnership (a "Partnership Common Unit"), provided that such Class 2 LTIP Unit has been outstanding for at least two years from the date of grant.

F3 · derivative.underlying: A holder of Partnership Common Units has the right to require the UDR Partnership to redeem all or a portion of the Partnership Common Units held by the holder in exchange for a cash payment based on the market value of the Company's Common Stock at the time of redemption, as defined in the Partnership Agreement (the "Cash Amount"). However, the UDR Partnership's obligation to pay the Cash Amount is subject the prior right of the Company to acquire such Partnership Common Units in exchange for either the Cash Amount or shares of the Company's Common Stock.

F4 · derivative.underlying: The Company, as the general partner of the UDR Partnership, may, in its sole discretion, purchase the Partnership Common Units by paying the limited partner either the Cash Amount or the REIT Share Amount (generally one share of the Company's Common Stock for each Partnership Common Unit), as such terms are defined in the Partnership Agreement. The right to convert the Class 2 LTIP Units into Partnership Common Units and the right to receive the Cash Amount or the REIT Share Amount (in the Company's sole discretion) in exchange for Partnership Common Units do not have expiration dates.

SEC source: 0001096906-23-000358 · form4.xml · derivative · entry 1

TOOMEY THOMAS W · CIK 0001195697 · Director · Chairman and CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 779,153

Underlying: Common Stock · 88,764 shares

Expires not disclosed

F1 · security: Represents Class 2 LTIP Units (the "Class 2 LTIP Units") in United Dominion Realty, L.P., a Delaware limited partnership (the "UDR Partnership"). UDR, Inc. (the "Company") is the parent company and sole general partner of the UDR Partnership.

F2 · derivative.exercise_price: Subject to the conditions set forth in the Amended and Restated Agreement of Limited Partnership of the UDR Partnership (the "Partnership Agreement") and subject to the vesting conditions specified with respect to each Class 2 LTIP Unit, each Class 2 LTIP Unit may be converted, at the election of the holder, into a unit of limited partnership of the UDR Partnership (a "Partnership Common Unit"), provided that such Class 2 LTIP Unit has been outstanding for at least two years from the date of grant.

F3 · derivative.exercise_price: A holder of Partnership Common Units has the right to require the UDR Partnership to redeem all or a portion of the Partnership Common Units held by the holder in exchange for a cash payment based on the market value of the Company's Common Stock at the time of redemption, as defined in the Partnership Agreement (the "Cash Amount"). However, the UDR Partnership's obligation to pay the Cash Amount is subject the prior right of the Company to acquire such Partnership Common Units in exchange for either the Cash Amount or shares of the Company's Common Stock.

F4 · derivative.exercise_price: The Company, as the general partner of the UDR Partnership, may, in its sole discretion, purchase the Partnership Common Units by paying the limited partner either the Cash Amount or the REIT Share Amount (generally one share of the Company's Common Stock for each Partnership Common Unit), as such terms are defined in the Partnership Agreement. The right to convert the Class 2 LTIP Units into Partnership Common Units and the right to receive the Cash Amount or the REIT Share Amount (in the Company's sole discretion) in exchange for Partnership Common Units do not have expiration dates.

F5 · shares: The Class 2 LTIP Units vest only to the extent that pre-established performance metrics are met for the applicable performance period, subject to continuing employment. Except as otherwise set forth in the UDR, Inc. 1999 Long-Term Incentive Plan, as amended from time to time, except Section 14.9 thereof, the Partnership Agreement, or as determined by the Compensation and Management Development Committee of the Company's Board of Directors (the "Committee"), in its sole discretion, for awards made prior to 2021, vesting of Class 2 LTIP Units shall cease upon the date of termination for any reason, and no unvested Class 2 LTIP Units shall thereafter become vested.

F6 · shares: For awards made in 2021 and thereafter, in the event of a change of control of the Company, the Class 2 LTIP Units will vest only if the holder's employment or other service relationship with the Company is terminated by the Company without cause, or by the holder for good reason, in each case on or within 12 months following the date of a change of control. Further, all restrictions on outstanding awards that have been earned shall lapse upon the Company's termination of the holder's employment without cause or the holder's termination of employment for good reason.

F7 · shares: The vesting of these Class 2 LTIP Units occurs on the date the Committee determines performance (the "Determination Date") for the applicable performance period ending on December 31, 2022 based on: a goal measured by the Company's relative total shareholder return ("TSR") as compared to an apartment peer group over a three-year cumulative performance period; a goal measured by the Company's relative TSR as compared to a REIT peer group over a three-year cumulative performance period; a goal measured by the Company's relative FFO as Adjusted growth rate as compared to an apartment peer group over a three-year cumulative performance period; and a goal measured by the Company's relative FFO as Adjusted growth rate as compared to an apartment peer group over a three-year cumulative performance period.

F8 · shares: Amount represents the portion of the award (including dividends) forfeited when performance results were determined by the Committee for the applicable portion of the award on the Determination Date, February 9, 2023.

F2 · derivative.exercise_date: Subject to the conditions set forth in the Amended and Restated Agreement of Limited Partnership of the UDR Partnership (the "Partnership Agreement") and subject to the vesting conditions specified with respect to each Class 2 LTIP Unit, each Class 2 LTIP Unit may be converted, at the election of the holder, into a unit of limited partnership of the UDR Partnership (a "Partnership Common Unit"), provided that such Class 2 LTIP Unit has been outstanding for at least two years from the date of grant.

F3 · derivative.exercise_date: A holder of Partnership Common Units has the right to require the UDR Partnership to redeem all or a portion of the Partnership Common Units held by the holder in exchange for a cash payment based on the market value of the Company's Common Stock at the time of redemption, as defined in the Partnership Agreement (the "Cash Amount"). However, the UDR Partnership's obligation to pay the Cash Amount is subject the prior right of the Company to acquire such Partnership Common Units in exchange for either the Cash Amount or shares of the Company's Common Stock.

F4 · derivative.exercise_date: The Company, as the general partner of the UDR Partnership, may, in its sole discretion, purchase the Partnership Common Units by paying the limited partner either the Cash Amount or the REIT Share Amount (generally one share of the Company's Common Stock for each Partnership Common Unit), as such terms are defined in the Partnership Agreement. The right to convert the Class 2 LTIP Units into Partnership Common Units and the right to receive the Cash Amount or the REIT Share Amount (in the Company's sole discretion) in exchange for Partnership Common Units do not have expiration dates.

F5 · derivative.exercise_date: The Class 2 LTIP Units vest only to the extent that pre-established performance metrics are met for the applicable performance period, subject to continuing employment. Except as otherwise set forth in the UDR, Inc. 1999 Long-Term Incentive Plan, as amended from time to time, except Section 14.9 thereof, the Partnership Agreement, or as determined by the Compensation and Management Development Committee of the Company's Board of Directors (the "Committee"), in its sole discretion, for awards made prior to 2021, vesting of Class 2 LTIP Units shall cease upon the date of termination for any reason, and no unvested Class 2 LTIP Units shall thereafter become vested.

F6 · derivative.exercise_date: For awards made in 2021 and thereafter, in the event of a change of control of the Company, the Class 2 LTIP Units will vest only if the holder's employment or other service relationship with the Company is terminated by the Company without cause, or by the holder for good reason, in each case on or within 12 months following the date of a change of control. Further, all restrictions on outstanding awards that have been earned shall lapse upon the Company's termination of the holder's employment without cause or the holder's termination of employment for good reason.

F7 · derivative.exercise_date: The vesting of these Class 2 LTIP Units occurs on the date the Committee determines performance (the "Determination Date") for the applicable performance period ending on December 31, 2022 based on: a goal measured by the Company's relative total shareholder return ("TSR") as compared to an apartment peer group over a three-year cumulative performance period; a goal measured by the Company's relative TSR as compared to a REIT peer group over a three-year cumulative performance period; a goal measured by the Company's relative FFO as Adjusted growth rate as compared to an apartment peer group over a three-year cumulative performance period; and a goal measured by the Company's relative FFO as Adjusted growth rate as compared to an apartment peer group over a three-year cumulative performance period.

F4 · derivative.expiration_date: The Company, as the general partner of the UDR Partnership, may, in its sole discretion, purchase the Partnership Common Units by paying the limited partner either the Cash Amount or the REIT Share Amount (generally one share of the Company's Common Stock for each Partnership Common Unit), as such terms are defined in the Partnership Agreement. The right to convert the Class 2 LTIP Units into Partnership Common Units and the right to receive the Cash Amount or the REIT Share Amount (in the Company's sole discretion) in exchange for Partnership Common Units do not have expiration dates.

F2 · derivative.underlying: Subject to the conditions set forth in the Amended and Restated Agreement of Limited Partnership of the UDR Partnership (the "Partnership Agreement") and subject to the vesting conditions specified with respect to each Class 2 LTIP Unit, each Class 2 LTIP Unit may be converted, at the election of the holder, into a unit of limited partnership of the UDR Partnership (a "Partnership Common Unit"), provided that such Class 2 LTIP Unit has been outstanding for at least two years from the date of grant.

F3 · derivative.underlying: A holder of Partnership Common Units has the right to require the UDR Partnership to redeem all or a portion of the Partnership Common Units held by the holder in exchange for a cash payment based on the market value of the Company's Common Stock at the time of redemption, as defined in the Partnership Agreement (the "Cash Amount"). However, the UDR Partnership's obligation to pay the Cash Amount is subject the prior right of the Company to acquire such Partnership Common Units in exchange for either the Cash Amount or shares of the Company's Common Stock.

F4 · derivative.underlying: The Company, as the general partner of the UDR Partnership, may, in its sole discretion, purchase the Partnership Common Units by paying the limited partner either the Cash Amount or the REIT Share Amount (generally one share of the Company's Common Stock for each Partnership Common Unit), as such terms are defined in the Partnership Agreement. The right to convert the Class 2 LTIP Units into Partnership Common Units and the right to receive the Cash Amount or the REIT Share Amount (in the Company's sole discretion) in exchange for Partnership Common Units do not have expiration dates.

SEC source: 0001096906-23-000355 · form4.xml · derivative · entry 3

ALCOCK HARRY G · CIK 0001229387 · SVP-Chief Investment Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 376,945

Underlying: Common Stock · 7,393 shares

Expires not disclosed

F1 · security: Represents Class 2 LTIP Units (the "Class 2 LTIP Units") in United Dominion Realty, L.P., a Delaware limited partnership (the "UDR Partnership"). UDR, Inc. (the "Company") is the parent company and sole general partner of the UDR Partnership.

F2 · derivative.exercise_price: Subject to the conditions set forth in the Amended and Restated Agreement of Limited Partnership of the UDR Partnership (the "Partnership Agreement") and subject to the vesting conditions specified with respect to each Class 2 LTIP Unit, each Class 2 LTIP Unit may be converted, at the election of the holder, into a unit of limited partnership of the UDR Partnership (a "Partnership Common Unit"), provided that such Class 2 LTIP Unit has been outstanding for at least two years from the date of grant.

F3 · derivative.exercise_price: A holder of Partnership Common Units has the right to require the UDR Partnership to redeem all or a portion of the Partnership Common Units held by the holder in exchange for a cash payment based on the market value of the Company's Common Stock at the time of redemption, as defined in the Partnership Agreement (the "Cash Amount"). However, the UDR Partnership's obligation to pay the Cash Amount is subject the prior right of the Company to acquire such Partnership Common Units in exchange for either the Cash Amount or shares of the Company's Common Stock.

F4 · derivative.exercise_price: The Company, as the general partner of the UDR Partnership, may, in its sole discretion, purchase the Partnership Common Units by paying the limited partner either the Cash Amount or the REIT Share Amount (generally one share of the Company's Common Stock for each Partnership Common Unit), as such terms are defined in the Partnership Agreement. The right to convert the Class 2 LTIP Units into Partnership Common Units and the right to receive the Cash Amount or the REIT Share Amount (in the Company's sole discretion) in exchange for Partnership Common Units do not have expiration dates.

F5 · shares: The Class 2 LTIP Units vest only to the extent that pre-established performance metrics are met for the applicable performance period, subject to continuing employment. Except as otherwise set forth in the UDR, Inc. 1999 Long-Term Incentive Plan, as amended from time to time, except Section 14.9 thereof, the Partnership Agreement, or as determined by the Compensation and Management Development Committee of the Company's Board of Directors (the "Committee"), in its sole discretion, for awards made prior to 2021, vesting of Class 2 LTIP Units shall cease upon the date of termination for any reason, and no unvested Class 2 LTIP Units shall thereafter become vested.

F6 · shares: For awards made in 2021 and thereafter, in the event of a change of control of the Company, the Class 2 LTIP Units will vest only if the holder's employment or other service relationship with the Company is terminated by the Company without cause, or by the holder for good reason, in each case on or within 12 months following the date of a change of control. Further, all restrictions on outstanding awards that have been earned shall lapse upon the Company's termination of the holder's employment without cause or the holder's termination of employment for good reason.

F11 · shares: The vesting of these Class 2 LTIP Units shall be determined as follows: 30 percent shall be based upon the Committee's subjective determination, in its sole discretion, of the executive officer's performance with respect to individual performance objectives; and 70 percent shall be based on pre-determined financial metrics. These Class 2 LTIP Units will vest upon a determination by the Committee after the completion of the applicable performance period.

F12 · shares: The portion of these Class 2 LTIP Units for which vesting is based on the achievement of pre-determined short term incentive plan financial metrics is determined as follows: 40 percent based on a transactions goal; 30 percent based on an FFO as Adjusted per share goal; 10 percent based on an operations goal; 10 percent based on an ESG goal; and 10 percent based on an associate engagement & DEI goal, each over a one-year period.

F13 · shares: Amount represents the portion of the award (including dividends) forfeited when performance results were determined by the Committee for the applicable portion of the award on the Determination Date, February 9, 2023.

F2 · derivative.exercise_date: Subject to the conditions set forth in the Amended and Restated Agreement of Limited Partnership of the UDR Partnership (the "Partnership Agreement") and subject to the vesting conditions specified with respect to each Class 2 LTIP Unit, each Class 2 LTIP Unit may be converted, at the election of the holder, into a unit of limited partnership of the UDR Partnership (a "Partnership Common Unit"), provided that such Class 2 LTIP Unit has been outstanding for at least two years from the date of grant.

F3 · derivative.exercise_date: A holder of Partnership Common Units has the right to require the UDR Partnership to redeem all or a portion of the Partnership Common Units held by the holder in exchange for a cash payment based on the market value of the Company's Common Stock at the time of redemption, as defined in the Partnership Agreement (the "Cash Amount"). However, the UDR Partnership's obligation to pay the Cash Amount is subject the prior right of the Company to acquire such Partnership Common Units in exchange for either the Cash Amount or shares of the Company's Common Stock.

F4 · derivative.exercise_date: The Company, as the general partner of the UDR Partnership, may, in its sole discretion, purchase the Partnership Common Units by paying the limited partner either the Cash Amount or the REIT Share Amount (generally one share of the Company's Common Stock for each Partnership Common Unit), as such terms are defined in the Partnership Agreement. The right to convert the Class 2 LTIP Units into Partnership Common Units and the right to receive the Cash Amount or the REIT Share Amount (in the Company's sole discretion) in exchange for Partnership Common Units do not have expiration dates.

F5 · derivative.exercise_date: The Class 2 LTIP Units vest only to the extent that pre-established performance metrics are met for the applicable performance period, subject to continuing employment. Except as otherwise set forth in the UDR, Inc. 1999 Long-Term Incentive Plan, as amended from time to time, except Section 14.9 thereof, the Partnership Agreement, or as determined by the Compensation and Management Development Committee of the Company's Board of Directors (the "Committee"), in its sole discretion, for awards made prior to 2021, vesting of Class 2 LTIP Units shall cease upon the date of termination for any reason, and no unvested Class 2 LTIP Units shall thereafter become vested.

F6 · derivative.exercise_date: For awards made in 2021 and thereafter, in the event of a change of control of the Company, the Class 2 LTIP Units will vest only if the holder's employment or other service relationship with the Company is terminated by the Company without cause, or by the holder for good reason, in each case on or within 12 months following the date of a change of control. Further, all restrictions on outstanding awards that have been earned shall lapse upon the Company's termination of the holder's employment without cause or the holder's termination of employment for good reason.

F11 · derivative.exercise_date: The vesting of these Class 2 LTIP Units shall be determined as follows: 30 percent shall be based upon the Committee's subjective determination, in its sole discretion, of the executive officer's performance with respect to individual performance objectives; and 70 percent shall be based on pre-determined financial metrics. These Class 2 LTIP Units will vest upon a determination by the Committee after the completion of the applicable performance period.

F12 · derivative.exercise_date: The portion of these Class 2 LTIP Units for which vesting is based on the achievement of pre-determined short term incentive plan financial metrics is determined as follows: 40 percent based on a transactions goal; 30 percent based on an FFO as Adjusted per share goal; 10 percent based on an operations goal; 10 percent based on an ESG goal; and 10 percent based on an associate engagement & DEI goal, each over a one-year period.

F4 · derivative.expiration_date: The Company, as the general partner of the UDR Partnership, may, in its sole discretion, purchase the Partnership Common Units by paying the limited partner either the Cash Amount or the REIT Share Amount (generally one share of the Company's Common Stock for each Partnership Common Unit), as such terms are defined in the Partnership Agreement. The right to convert the Class 2 LTIP Units into Partnership Common Units and the right to receive the Cash Amount or the REIT Share Amount (in the Company's sole discretion) in exchange for Partnership Common Units do not have expiration dates.

F2 · derivative.underlying: Subject to the conditions set forth in the Amended and Restated Agreement of Limited Partnership of the UDR Partnership (the "Partnership Agreement") and subject to the vesting conditions specified with respect to each Class 2 LTIP Unit, each Class 2 LTIP Unit may be converted, at the election of the holder, into a unit of limited partnership of the UDR Partnership (a "Partnership Common Unit"), provided that such Class 2 LTIP Unit has been outstanding for at least two years from the date of grant.

F3 · derivative.underlying: A holder of Partnership Common Units has the right to require the UDR Partnership to redeem all or a portion of the Partnership Common Units held by the holder in exchange for a cash payment based on the market value of the Company's Common Stock at the time of redemption, as defined in the Partnership Agreement (the "Cash Amount"). However, the UDR Partnership's obligation to pay the Cash Amount is subject the prior right of the Company to acquire such Partnership Common Units in exchange for either the Cash Amount or shares of the Company's Common Stock.

F4 · derivative.underlying: The Company, as the general partner of the UDR Partnership, may, in its sole discretion, purchase the Partnership Common Units by paying the limited partner either the Cash Amount or the REIT Share Amount (generally one share of the Company's Common Stock for each Partnership Common Unit), as such terms are defined in the Partnership Agreement. The right to convert the Class 2 LTIP Units into Partnership Common Units and the right to receive the Cash Amount or the REIT Share Amount (in the Company's sole discretion) in exchange for Partnership Common Units do not have expiration dates.

SEC source: 0001096906-23-000355 · form4.xml · derivative · entry 2

ALCOCK HARRY G · CIK 0001229387 · SVP-Chief Investment Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 384,338

Underlying: Common Stock · 331 shares

Expires not disclosed

F1 · security: Represents Class 2 LTIP Units (the "Class 2 LTIP Units") in United Dominion Realty, L.P., a Delaware limited partnership (the "UDR Partnership"). UDR, Inc. (the "Company") is the parent company and sole general partner of the UDR Partnership.

F2 · derivative.exercise_price: Subject to the conditions set forth in the Amended and Restated Agreement of Limited Partnership of the UDR Partnership (the "Partnership Agreement") and subject to the vesting conditions specified with respect to each Class 2 LTIP Unit, each Class 2 LTIP Unit may be converted, at the election of the holder, into a unit of limited partnership of the UDR Partnership (a "Partnership Common Unit"), provided that such Class 2 LTIP Unit has been outstanding for at least two years from the date of grant.

F3 · derivative.exercise_price: A holder of Partnership Common Units has the right to require the UDR Partnership to redeem all or a portion of the Partnership Common Units held by the holder in exchange for a cash payment based on the market value of the Company's Common Stock at the time of redemption, as defined in the Partnership Agreement (the "Cash Amount"). However, the UDR Partnership's obligation to pay the Cash Amount is subject the prior right of the Company to acquire such Partnership Common Units in exchange for either the Cash Amount or shares of the Company's Common Stock.

F4 · derivative.exercise_price: The Company, as the general partner of the UDR Partnership, may, in its sole discretion, purchase the Partnership Common Units by paying the limited partner either the Cash Amount or the REIT Share Amount (generally one share of the Company's Common Stock for each Partnership Common Unit), as such terms are defined in the Partnership Agreement. The right to convert the Class 2 LTIP Units into Partnership Common Units and the right to receive the Cash Amount or the REIT Share Amount (in the Company's sole discretion) in exchange for Partnership Common Units do not have expiration dates.

F5 · shares: The Class 2 LTIP Units vest only to the extent that pre-established performance metrics are met for the applicable performance period, subject to continuing employment. Except as otherwise set forth in the UDR, Inc. 1999 Long-Term Incentive Plan, as amended from time to time, except Section 14.9 thereof, the Partnership Agreement, or as determined by the Compensation and Management Development Committee of the Company's Board of Directors (the "Committee"), in its sole discretion, for awards made prior to 2021, vesting of Class 2 LTIP Units shall cease upon the date of termination for any reason, and no unvested Class 2 LTIP Units shall thereafter become vested.

F6 · shares: For awards made in 2021 and thereafter, in the event of a change of control of the Company, the Class 2 LTIP Units will vest only if the holder's employment or other service relationship with the Company is terminated by the Company without cause, or by the holder for good reason, in each case on or within 12 months following the date of a change of control. Further, all restrictions on outstanding awards that have been earned shall lapse upon the Company's termination of the holder's employment without cause or the holder's termination of employment for good reason.

F9 · shares: The vesting of these Class 2 LTIP Units occurs on the Determination Date for the applicable performance period ending on December 31, 2022 based on the achievement of a pre-determined FFO as Adjusted Goal over a one-year period. These Class 2 LTIP Units will vest 50 percent on the Determination Date, and 50 percent on the one-year anniversary thereof.

F10 · shares: Amount represents the portion of the award (including dividends) forfeited when performance results were determined by the Committee for the applicable portion of the award on the Determination Date, February 9, 2023.

F2 · derivative.exercise_date: Subject to the conditions set forth in the Amended and Restated Agreement of Limited Partnership of the UDR Partnership (the "Partnership Agreement") and subject to the vesting conditions specified with respect to each Class 2 LTIP Unit, each Class 2 LTIP Unit may be converted, at the election of the holder, into a unit of limited partnership of the UDR Partnership (a "Partnership Common Unit"), provided that such Class 2 LTIP Unit has been outstanding for at least two years from the date of grant.

F3 · derivative.exercise_date: A holder of Partnership Common Units has the right to require the UDR Partnership to redeem all or a portion of the Partnership Common Units held by the holder in exchange for a cash payment based on the market value of the Company's Common Stock at the time of redemption, as defined in the Partnership Agreement (the "Cash Amount"). However, the UDR Partnership's obligation to pay the Cash Amount is subject the prior right of the Company to acquire such Partnership Common Units in exchange for either the Cash Amount or shares of the Company's Common Stock.

F4 · derivative.exercise_date: The Company, as the general partner of the UDR Partnership, may, in its sole discretion, purchase the Partnership Common Units by paying the limited partner either the Cash Amount or the REIT Share Amount (generally one share of the Company's Common Stock for each Partnership Common Unit), as such terms are defined in the Partnership Agreement. The right to convert the Class 2 LTIP Units into Partnership Common Units and the right to receive the Cash Amount or the REIT Share Amount (in the Company's sole discretion) in exchange for Partnership Common Units do not have expiration dates.

F5 · derivative.exercise_date: The Class 2 LTIP Units vest only to the extent that pre-established performance metrics are met for the applicable performance period, subject to continuing employment. Except as otherwise set forth in the UDR, Inc. 1999 Long-Term Incentive Plan, as amended from time to time, except Section 14.9 thereof, the Partnership Agreement, or as determined by the Compensation and Management Development Committee of the Company's Board of Directors (the "Committee"), in its sole discretion, for awards made prior to 2021, vesting of Class 2 LTIP Units shall cease upon the date of termination for any reason, and no unvested Class 2 LTIP Units shall thereafter become vested.

F6 · derivative.exercise_date: For awards made in 2021 and thereafter, in the event of a change of control of the Company, the Class 2 LTIP Units will vest only if the holder's employment or other service relationship with the Company is terminated by the Company without cause, or by the holder for good reason, in each case on or within 12 months following the date of a change of control. Further, all restrictions on outstanding awards that have been earned shall lapse upon the Company's termination of the holder's employment without cause or the holder's termination of employment for good reason.

F9 · derivative.exercise_date: The vesting of these Class 2 LTIP Units occurs on the Determination Date for the applicable performance period ending on December 31, 2022 based on the achievement of a pre-determined FFO as Adjusted Goal over a one-year period. These Class 2 LTIP Units will vest 50 percent on the Determination Date, and 50 percent on the one-year anniversary thereof.

F4 · derivative.expiration_date: The Company, as the general partner of the UDR Partnership, may, in its sole discretion, purchase the Partnership Common Units by paying the limited partner either the Cash Amount or the REIT Share Amount (generally one share of the Company's Common Stock for each Partnership Common Unit), as such terms are defined in the Partnership Agreement. The right to convert the Class 2 LTIP Units into Partnership Common Units and the right to receive the Cash Amount or the REIT Share Amount (in the Company's sole discretion) in exchange for Partnership Common Units do not have expiration dates.

F2 · derivative.underlying: Subject to the conditions set forth in the Amended and Restated Agreement of Limited Partnership of the UDR Partnership (the "Partnership Agreement") and subject to the vesting conditions specified with respect to each Class 2 LTIP Unit, each Class 2 LTIP Unit may be converted, at the election of the holder, into a unit of limited partnership of the UDR Partnership (a "Partnership Common Unit"), provided that such Class 2 LTIP Unit has been outstanding for at least two years from the date of grant.

F3 · derivative.underlying: A holder of Partnership Common Units has the right to require the UDR Partnership to redeem all or a portion of the Partnership Common Units held by the holder in exchange for a cash payment based on the market value of the Company's Common Stock at the time of redemption, as defined in the Partnership Agreement (the "Cash Amount"). However, the UDR Partnership's obligation to pay the Cash Amount is subject the prior right of the Company to acquire such Partnership Common Units in exchange for either the Cash Amount or shares of the Company's Common Stock.

F4 · derivative.underlying: The Company, as the general partner of the UDR Partnership, may, in its sole discretion, purchase the Partnership Common Units by paying the limited partner either the Cash Amount or the REIT Share Amount (generally one share of the Company's Common Stock for each Partnership Common Unit), as such terms are defined in the Partnership Agreement. The right to convert the Class 2 LTIP Units into Partnership Common Units and the right to receive the Cash Amount or the REIT Share Amount (in the Company's sole discretion) in exchange for Partnership Common Units do not have expiration dates.

SEC source: 0001096906-23-000355 · form4.xml · derivative · entry 1

ALCOCK HARRY G · CIK 0001229387 · SVP-Chief Investment Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 384,669

Underlying: Common Stock · 26,416 shares

Expires not disclosed

F1 · security: Represents Class 2 LTIP Units (the "Class 2 LTIP Units") in United Dominion Realty, L.P., a Delaware limited partnership (the "UDR Partnership"). UDR, Inc. (the "Company") is the parent company and sole general partner of the UDR Partnership.

F2 · derivative.exercise_price: Subject to the conditions set forth in the Amended and Restated Agreement of Limited Partnership of the UDR Partnership (the "Partnership Agreement") and subject to the vesting conditions specified with respect to each Class 2 LTIP Unit, each Class 2 LTIP Unit may be converted, at the election of the holder, into a unit of limited partnership of the UDR Partnership (a "Partnership Common Unit"), provided that such Class 2 LTIP Unit has been outstanding for at least two years from the date of grant.

F3 · derivative.exercise_price: A holder of Partnership Common Units has the right to require the UDR Partnership to redeem all or a portion of the Partnership Common Units held by the holder in exchange for a cash payment based on the market value of the Company's Common Stock at the time of redemption, as defined in the Partnership Agreement (the "Cash Amount"). However, the UDR Partnership's obligation to pay the Cash Amount is subject the prior right of the Company to acquire such Partnership Common Units in exchange for either the Cash Amount or shares of the Company's Common Stock.

F4 · derivative.exercise_price: The Company, as the general partner of the UDR Partnership, may, in its sole discretion, purchase the Partnership Common Units by paying the limited partner either the Cash Amount or the REIT Share Amount (generally one share of the Company's Common Stock for each Partnership Common Unit), as such terms are defined in the Partnership Agreement. The right to convert the Class 2 LTIP Units into Partnership Common Units and the right to receive the Cash Amount or the REIT Share Amount (in the Company's sole discretion) in exchange for Partnership Common Units do not have expiration dates.

F5 · shares: The Class 2 LTIP Units vest only to the extent that pre-established performance metrics are met for the applicable performance period, subject to continuing employment. Except as otherwise set forth in the UDR, Inc. 1999 Long-Term Incentive Plan, as amended from time to time, except Section 14.9 thereof, the Partnership Agreement, or as determined by the Compensation and Management Development Committee of the Company's Board of Directors (the "Committee"), in its sole discretion, for awards made prior to 2021, vesting of Class 2 LTIP Units shall cease upon the date of termination for any reason, and no unvested Class 2 LTIP Units shall thereafter become vested.

F6 · shares: For awards made in 2021 and thereafter, in the event of a change of control of the Company, the Class 2 LTIP Units will vest only if the holder's employment or other service relationship with the Company is terminated by the Company without cause, or by the holder for good reason, in each case on or within 12 months following the date of a change of control. Further, all restrictions on outstanding awards that have been earned shall lapse upon the Company's termination of the holder's employment without cause or the holder's termination of employment for good reason.

F7 · shares: The vesting of these Class 2 LTIP Units occurs on the date the Committee determines performance (the "Determination Date") for the applicable performance period ending on December 31, 2022 based on: a goal measured by the Company's relative total shareholder return ("TSR") as compared to an apartment peer group over a three-year cumulative performance period; a goal measured by the Company's relative TSR as compared to a REIT peer group over a three-year cumulative performance period; a goal measured by the Company's relative FFO as Adjusted growth rate as compared to an apartment peer group over a three-year cumulative performance period; and a goal measured by the Company's relative FFO as Adjusted growth rate as compared to an apartment peer group over a three-year cumulative performance period.

F8 · shares: Amount represents the portion of the award (including dividends) forfeited when performance results were determined by the Committee for the applicable portion of the award on the Determination Date, February 9, 2023.

F2 · derivative.exercise_date: Subject to the conditions set forth in the Amended and Restated Agreement of Limited Partnership of the UDR Partnership (the "Partnership Agreement") and subject to the vesting conditions specified with respect to each Class 2 LTIP Unit, each Class 2 LTIP Unit may be converted, at the election of the holder, into a unit of limited partnership of the UDR Partnership (a "Partnership Common Unit"), provided that such Class 2 LTIP Unit has been outstanding for at least two years from the date of grant.

F3 · derivative.exercise_date: A holder of Partnership Common Units has the right to require the UDR Partnership to redeem all or a portion of the Partnership Common Units held by the holder in exchange for a cash payment based on the market value of the Company's Common Stock at the time of redemption, as defined in the Partnership Agreement (the "Cash Amount"). However, the UDR Partnership's obligation to pay the Cash Amount is subject the prior right of the Company to acquire such Partnership Common Units in exchange for either the Cash Amount or shares of the Company's Common Stock.

F4 · derivative.exercise_date: The Company, as the general partner of the UDR Partnership, may, in its sole discretion, purchase the Partnership Common Units by paying the limited partner either the Cash Amount or the REIT Share Amount (generally one share of the Company's Common Stock for each Partnership Common Unit), as such terms are defined in the Partnership Agreement. The right to convert the Class 2 LTIP Units into Partnership Common Units and the right to receive the Cash Amount or the REIT Share Amount (in the Company's sole discretion) in exchange for Partnership Common Units do not have expiration dates.

F5 · derivative.exercise_date: The Class 2 LTIP Units vest only to the extent that pre-established performance metrics are met for the applicable performance period, subject to continuing employment. Except as otherwise set forth in the UDR, Inc. 1999 Long-Term Incentive Plan, as amended from time to time, except Section 14.9 thereof, the Partnership Agreement, or as determined by the Compensation and Management Development Committee of the Company's Board of Directors (the "Committee"), in its sole discretion, for awards made prior to 2021, vesting of Class 2 LTIP Units shall cease upon the date of termination for any reason, and no unvested Class 2 LTIP Units shall thereafter become vested.

F6 · derivative.exercise_date: For awards made in 2021 and thereafter, in the event of a change of control of the Company, the Class 2 LTIP Units will vest only if the holder's employment or other service relationship with the Company is terminated by the Company without cause, or by the holder for good reason, in each case on or within 12 months following the date of a change of control. Further, all restrictions on outstanding awards that have been earned shall lapse upon the Company's termination of the holder's employment without cause or the holder's termination of employment for good reason.

F7 · derivative.exercise_date: The vesting of these Class 2 LTIP Units occurs on the date the Committee determines performance (the "Determination Date") for the applicable performance period ending on December 31, 2022 based on: a goal measured by the Company's relative total shareholder return ("TSR") as compared to an apartment peer group over a three-year cumulative performance period; a goal measured by the Company's relative TSR as compared to a REIT peer group over a three-year cumulative performance period; a goal measured by the Company's relative FFO as Adjusted growth rate as compared to an apartment peer group over a three-year cumulative performance period; and a goal measured by the Company's relative FFO as Adjusted growth rate as compared to an apartment peer group over a three-year cumulative performance period.

F4 · derivative.expiration_date: The Company, as the general partner of the UDR Partnership, may, in its sole discretion, purchase the Partnership Common Units by paying the limited partner either the Cash Amount or the REIT Share Amount (generally one share of the Company's Common Stock for each Partnership Common Unit), as such terms are defined in the Partnership Agreement. The right to convert the Class 2 LTIP Units into Partnership Common Units and the right to receive the Cash Amount or the REIT Share Amount (in the Company's sole discretion) in exchange for Partnership Common Units do not have expiration dates.

F2 · derivative.underlying: Subject to the conditions set forth in the Amended and Restated Agreement of Limited Partnership of the UDR Partnership (the "Partnership Agreement") and subject to the vesting conditions specified with respect to each Class 2 LTIP Unit, each Class 2 LTIP Unit may be converted, at the election of the holder, into a unit of limited partnership of the UDR Partnership (a "Partnership Common Unit"), provided that such Class 2 LTIP Unit has been outstanding for at least two years from the date of grant.

F3 · derivative.underlying: A holder of Partnership Common Units has the right to require the UDR Partnership to redeem all or a portion of the Partnership Common Units held by the holder in exchange for a cash payment based on the market value of the Company's Common Stock at the time of redemption, as defined in the Partnership Agreement (the "Cash Amount"). However, the UDR Partnership's obligation to pay the Cash Amount is subject the prior right of the Company to acquire such Partnership Common Units in exchange for either the Cash Amount or shares of the Company's Common Stock.

F4 · derivative.underlying: The Company, as the general partner of the UDR Partnership, may, in its sole discretion, purchase the Partnership Common Units by paying the limited partner either the Cash Amount or the REIT Share Amount (generally one share of the Company's Common Stock for each Partnership Common Unit), as such terms are defined in the Partnership Agreement. The right to convert the Class 2 LTIP Units into Partnership Common Units and the right to receive the Cash Amount or the REIT Share Amount (in the Company's sole discretion) in exchange for Partnership Common Units do not have expiration dates.

SEC source: 0001096906-23-000356 · form4.xml · derivative · entry 3

Fisher Joseph D · CIK 0001691531 · President-CFO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 258,189

Underlying: Common Stock · 8,414 shares

Expires not disclosed

F1 · security: Represents Class 2 LTIP Units (the "Class 2 LTIP Units") in United Dominion Realty, L.P., a Delaware limited partnership (the "UDR Partnership"). UDR, Inc. (the "Company") is the parent company and sole general partner of the UDR Partnership.

F2 · derivative.exercise_price: Subject to the conditions set forth in the Amended and Restated Agreement of Limited Partnership of the UDR Partnership (the "Partnership Agreement") and subject to the vesting conditions specified with respect to each Class 2 LTIP Unit, each Class 2 LTIP Unit may be converted, at the election of the holder, into a unit of limited partnership of the UDR Partnership (a "Partnership Common Unit"), provided that such Class 2 LTIP Unit has been outstanding for at least two years from the date of grant.

F3 · derivative.exercise_price: A holder of Partnership Common Units has the right to require the UDR Partnership to redeem all or a portion of the Partnership Common Units held by the holder in exchange for a cash payment based on the market value of the Company's Common Stock at the time of redemption, as defined in the Partnership Agreement (the "Cash Amount"). However, the UDR Partnership's obligation to pay the Cash Amount is subject the prior right of the Company to acquire such Partnership Common Units in exchange for either the Cash Amount or shares of the Company's Common Stock.

F4 · derivative.exercise_price: The Company, as the general partner of the UDR Partnership, may, in its sole discretion, purchase the Partnership Common Units by paying the limited partner either the Cash Amount or the REIT Share Amount (generally one share of the Company's Common Stock for each Partnership Common Unit), as such terms are defined in the Partnership Agreement. The right to convert the Class 2 LTIP Units into Partnership Common Units and the right to receive the Cash Amount or the REIT Share Amount (in the Company's sole discretion) in exchange for Partnership Common Units do not have expiration dates.

F5 · shares: The Class 2 LTIP Units vest only to the extent that pre-established performance metrics are met for the applicable performance period, subject to continuing employment. Except as otherwise set forth in the UDR, Inc. 1999 Long-Term Incentive Plan, as amended from time to time, except Section 14.9 thereof, the Partnership Agreement, or as determined by the Compensation and Management Development Committee of the Company's Board of Directors (the "Committee"), in its sole discretion, for awards made prior to 2021, vesting of Class 2 LTIP Units shall cease upon the date of termination for any reason, and no unvested Class 2 LTIP Units shall thereafter become vested.

F6 · shares: For awards made in 2021 and thereafter, in the event of a change of control of the Company, the Class 2 LTIP Units will vest only if the holder's employment or other service relationship with the Company is terminated by the Company without cause, or by the holder for good reason, in each case on or within 12 months following the date of a change of control. Further, all restrictions on outstanding awards that have been earned shall lapse upon the Company's termination of the holder's employment without cause or the holder's termination of employment for good reason.

F11 · shares: The vesting of these Class 2 LTIP Units shall be determined as follows: 30 percent shall be based upon the Committee's subjective determination, in its sole discretion, of the executive officer's performance with respect to individual performance objectives; and 70 percent shall be based on pre-determined financial metrics. These Class 2 LTIP Units will vest upon a determination by the Committee after the completion of the applicable performance period.

F12 · shares: The portion of these Class 2 LTIP Units for which vesting is based on the achievement of pre-determined short term incentive plan financial metrics is determined as follows: 30 percent based on an FFO as Adjusted per share goal; 25 percent based on a transactions goal; 25 percent based on an operations goal; 10 percent based on an ESG goal; and 10 percent based on an associate engagement & DEI goal, each over a one-year period.

F13 · shares: Amount represents the portion of the award (including dividends) forfeited when performance results were determined by the Committee for the applicable portion of the award on the Determination Date, February 9, 2023.

F2 · derivative.exercise_date: Subject to the conditions set forth in the Amended and Restated Agreement of Limited Partnership of the UDR Partnership (the "Partnership Agreement") and subject to the vesting conditions specified with respect to each Class 2 LTIP Unit, each Class 2 LTIP Unit may be converted, at the election of the holder, into a unit of limited partnership of the UDR Partnership (a "Partnership Common Unit"), provided that such Class 2 LTIP Unit has been outstanding for at least two years from the date of grant.

F3 · derivative.exercise_date: A holder of Partnership Common Units has the right to require the UDR Partnership to redeem all or a portion of the Partnership Common Units held by the holder in exchange for a cash payment based on the market value of the Company's Common Stock at the time of redemption, as defined in the Partnership Agreement (the "Cash Amount"). However, the UDR Partnership's obligation to pay the Cash Amount is subject the prior right of the Company to acquire such Partnership Common Units in exchange for either the Cash Amount or shares of the Company's Common Stock.

F4 · derivative.exercise_date: The Company, as the general partner of the UDR Partnership, may, in its sole discretion, purchase the Partnership Common Units by paying the limited partner either the Cash Amount or the REIT Share Amount (generally one share of the Company's Common Stock for each Partnership Common Unit), as such terms are defined in the Partnership Agreement. The right to convert the Class 2 LTIP Units into Partnership Common Units and the right to receive the Cash Amount or the REIT Share Amount (in the Company's sole discretion) in exchange for Partnership Common Units do not have expiration dates.

F5 · derivative.exercise_date: The Class 2 LTIP Units vest only to the extent that pre-established performance metrics are met for the applicable performance period, subject to continuing employment. Except as otherwise set forth in the UDR, Inc. 1999 Long-Term Incentive Plan, as amended from time to time, except Section 14.9 thereof, the Partnership Agreement, or as determined by the Compensation and Management Development Committee of the Company's Board of Directors (the "Committee"), in its sole discretion, for awards made prior to 2021, vesting of Class 2 LTIP Units shall cease upon the date of termination for any reason, and no unvested Class 2 LTIP Units shall thereafter become vested.

F6 · derivative.exercise_date: For awards made in 2021 and thereafter, in the event of a change of control of the Company, the Class 2 LTIP Units will vest only if the holder's employment or other service relationship with the Company is terminated by the Company without cause, or by the holder for good reason, in each case on or within 12 months following the date of a change of control. Further, all restrictions on outstanding awards that have been earned shall lapse upon the Company's termination of the holder's employment without cause or the holder's termination of employment for good reason.

F11 · derivative.exercise_date: The vesting of these Class 2 LTIP Units shall be determined as follows: 30 percent shall be based upon the Committee's subjective determination, in its sole discretion, of the executive officer's performance with respect to individual performance objectives; and 70 percent shall be based on pre-determined financial metrics. These Class 2 LTIP Units will vest upon a determination by the Committee after the completion of the applicable performance period.

F12 · derivative.exercise_date: The portion of these Class 2 LTIP Units for which vesting is based on the achievement of pre-determined short term incentive plan financial metrics is determined as follows: 30 percent based on an FFO as Adjusted per share goal; 25 percent based on a transactions goal; 25 percent based on an operations goal; 10 percent based on an ESG goal; and 10 percent based on an associate engagement & DEI goal, each over a one-year period.

F4 · derivative.expiration_date: The Company, as the general partner of the UDR Partnership, may, in its sole discretion, purchase the Partnership Common Units by paying the limited partner either the Cash Amount or the REIT Share Amount (generally one share of the Company's Common Stock for each Partnership Common Unit), as such terms are defined in the Partnership Agreement. The right to convert the Class 2 LTIP Units into Partnership Common Units and the right to receive the Cash Amount or the REIT Share Amount (in the Company's sole discretion) in exchange for Partnership Common Units do not have expiration dates.

F2 · derivative.underlying: Subject to the conditions set forth in the Amended and Restated Agreement of Limited Partnership of the UDR Partnership (the "Partnership Agreement") and subject to the vesting conditions specified with respect to each Class 2 LTIP Unit, each Class 2 LTIP Unit may be converted, at the election of the holder, into a unit of limited partnership of the UDR Partnership (a "Partnership Common Unit"), provided that such Class 2 LTIP Unit has been outstanding for at least two years from the date of grant.

F3 · derivative.underlying: A holder of Partnership Common Units has the right to require the UDR Partnership to redeem all or a portion of the Partnership Common Units held by the holder in exchange for a cash payment based on the market value of the Company's Common Stock at the time of redemption, as defined in the Partnership Agreement (the "Cash Amount"). However, the UDR Partnership's obligation to pay the Cash Amount is subject the prior right of the Company to acquire such Partnership Common Units in exchange for either the Cash Amount or shares of the Company's Common Stock.

F4 · derivative.underlying: The Company, as the general partner of the UDR Partnership, may, in its sole discretion, purchase the Partnership Common Units by paying the limited partner either the Cash Amount or the REIT Share Amount (generally one share of the Company's Common Stock for each Partnership Common Unit), as such terms are defined in the Partnership Agreement. The right to convert the Class 2 LTIP Units into Partnership Common Units and the right to receive the Cash Amount or the REIT Share Amount (in the Company's sole discretion) in exchange for Partnership Common Units do not have expiration dates.

SEC source: 0001096906-23-000356 · form4.xml · derivative · entry 2

Fisher Joseph D · CIK 0001691531 · President-CFO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 266,603

Underlying: Common Stock · 331 shares

Expires not disclosed

F1 · security: Represents Class 2 LTIP Units (the "Class 2 LTIP Units") in United Dominion Realty, L.P., a Delaware limited partnership (the "UDR Partnership"). UDR, Inc. (the "Company") is the parent company and sole general partner of the UDR Partnership.

F2 · derivative.exercise_price: Subject to the conditions set forth in the Amended and Restated Agreement of Limited Partnership of the UDR Partnership (the "Partnership Agreement") and subject to the vesting conditions specified with respect to each Class 2 LTIP Unit, each Class 2 LTIP Unit may be converted, at the election of the holder, into a unit of limited partnership of the UDR Partnership (a "Partnership Common Unit"), provided that such Class 2 LTIP Unit has been outstanding for at least two years from the date of grant.

F3 · derivative.exercise_price: A holder of Partnership Common Units has the right to require the UDR Partnership to redeem all or a portion of the Partnership Common Units held by the holder in exchange for a cash payment based on the market value of the Company's Common Stock at the time of redemption, as defined in the Partnership Agreement (the "Cash Amount"). However, the UDR Partnership's obligation to pay the Cash Amount is subject the prior right of the Company to acquire such Partnership Common Units in exchange for either the Cash Amount or shares of the Company's Common Stock.

F4 · derivative.exercise_price: The Company, as the general partner of the UDR Partnership, may, in its sole discretion, purchase the Partnership Common Units by paying the limited partner either the Cash Amount or the REIT Share Amount (generally one share of the Company's Common Stock for each Partnership Common Unit), as such terms are defined in the Partnership Agreement. The right to convert the Class 2 LTIP Units into Partnership Common Units and the right to receive the Cash Amount or the REIT Share Amount (in the Company's sole discretion) in exchange for Partnership Common Units do not have expiration dates.

F5 · shares: The Class 2 LTIP Units vest only to the extent that pre-established performance metrics are met for the applicable performance period, subject to continuing employment. Except as otherwise set forth in the UDR, Inc. 1999 Long-Term Incentive Plan, as amended from time to time, except Section 14.9 thereof, the Partnership Agreement, or as determined by the Compensation and Management Development Committee of the Company's Board of Directors (the "Committee"), in its sole discretion, for awards made prior to 2021, vesting of Class 2 LTIP Units shall cease upon the date of termination for any reason, and no unvested Class 2 LTIP Units shall thereafter become vested.

F6 · shares: For awards made in 2021 and thereafter, in the event of a change of control of the Company, the Class 2 LTIP Units will vest only if the holder's employment or other service relationship with the Company is terminated by the Company without cause, or by the holder for good reason, in each case on or within 12 months following the date of a change of control. Further, all restrictions on outstanding awards that have been earned shall lapse upon the Company's termination of the holder's employment without cause or the holder's termination of employment for good reason.

F9 · shares: The vesting of these Class 2 LTIP Units occurs on the Determination Date for the applicable performance period ending on December 31, 2022 based on the achievement of a pre-determined FFO as Adjusted Goal over a one-year period. These Class 2 LTIP Units will vest 50 percent on the Determination Date, and 50 percent on the one-year anniversary thereof.

F10 · shares: Amount represents the portion of the award (including dividends) forfeited when performance results were determined by the Committee for the applicable portion of the award on the Determination Date, February 9, 2023.

F2 · derivative.exercise_date: Subject to the conditions set forth in the Amended and Restated Agreement of Limited Partnership of the UDR Partnership (the "Partnership Agreement") and subject to the vesting conditions specified with respect to each Class 2 LTIP Unit, each Class 2 LTIP Unit may be converted, at the election of the holder, into a unit of limited partnership of the UDR Partnership (a "Partnership Common Unit"), provided that such Class 2 LTIP Unit has been outstanding for at least two years from the date of grant.

F3 · derivative.exercise_date: A holder of Partnership Common Units has the right to require the UDR Partnership to redeem all or a portion of the Partnership Common Units held by the holder in exchange for a cash payment based on the market value of the Company's Common Stock at the time of redemption, as defined in the Partnership Agreement (the "Cash Amount"). However, the UDR Partnership's obligation to pay the Cash Amount is subject the prior right of the Company to acquire such Partnership Common Units in exchange for either the Cash Amount or shares of the Company's Common Stock.

F4 · derivative.exercise_date: The Company, as the general partner of the UDR Partnership, may, in its sole discretion, purchase the Partnership Common Units by paying the limited partner either the Cash Amount or the REIT Share Amount (generally one share of the Company's Common Stock for each Partnership Common Unit), as such terms are defined in the Partnership Agreement. The right to convert the Class 2 LTIP Units into Partnership Common Units and the right to receive the Cash Amount or the REIT Share Amount (in the Company's sole discretion) in exchange for Partnership Common Units do not have expiration dates.

F5 · derivative.exercise_date: The Class 2 LTIP Units vest only to the extent that pre-established performance metrics are met for the applicable performance period, subject to continuing employment. Except as otherwise set forth in the UDR, Inc. 1999 Long-Term Incentive Plan, as amended from time to time, except Section 14.9 thereof, the Partnership Agreement, or as determined by the Compensation and Management Development Committee of the Company's Board of Directors (the "Committee"), in its sole discretion, for awards made prior to 2021, vesting of Class 2 LTIP Units shall cease upon the date of termination for any reason, and no unvested Class 2 LTIP Units shall thereafter become vested.

F6 · derivative.exercise_date: For awards made in 2021 and thereafter, in the event of a change of control of the Company, the Class 2 LTIP Units will vest only if the holder's employment or other service relationship with the Company is terminated by the Company without cause, or by the holder for good reason, in each case on or within 12 months following the date of a change of control. Further, all restrictions on outstanding awards that have been earned shall lapse upon the Company's termination of the holder's employment without cause or the holder's termination of employment for good reason.

F9 · derivative.exercise_date: The vesting of these Class 2 LTIP Units occurs on the Determination Date for the applicable performance period ending on December 31, 2022 based on the achievement of a pre-determined FFO as Adjusted Goal over a one-year period. These Class 2 LTIP Units will vest 50 percent on the Determination Date, and 50 percent on the one-year anniversary thereof.

F4 · derivative.expiration_date: The Company, as the general partner of the UDR Partnership, may, in its sole discretion, purchase the Partnership Common Units by paying the limited partner either the Cash Amount or the REIT Share Amount (generally one share of the Company's Common Stock for each Partnership Common Unit), as such terms are defined in the Partnership Agreement. The right to convert the Class 2 LTIP Units into Partnership Common Units and the right to receive the Cash Amount or the REIT Share Amount (in the Company's sole discretion) in exchange for Partnership Common Units do not have expiration dates.

F2 · derivative.underlying: Subject to the conditions set forth in the Amended and Restated Agreement of Limited Partnership of the UDR Partnership (the "Partnership Agreement") and subject to the vesting conditions specified with respect to each Class 2 LTIP Unit, each Class 2 LTIP Unit may be converted, at the election of the holder, into a unit of limited partnership of the UDR Partnership (a "Partnership Common Unit"), provided that such Class 2 LTIP Unit has been outstanding for at least two years from the date of grant.

F3 · derivative.underlying: A holder of Partnership Common Units has the right to require the UDR Partnership to redeem all or a portion of the Partnership Common Units held by the holder in exchange for a cash payment based on the market value of the Company's Common Stock at the time of redemption, as defined in the Partnership Agreement (the "Cash Amount"). However, the UDR Partnership's obligation to pay the Cash Amount is subject the prior right of the Company to acquire such Partnership Common Units in exchange for either the Cash Amount or shares of the Company's Common Stock.

F4 · derivative.underlying: The Company, as the general partner of the UDR Partnership, may, in its sole discretion, purchase the Partnership Common Units by paying the limited partner either the Cash Amount or the REIT Share Amount (generally one share of the Company's Common Stock for each Partnership Common Unit), as such terms are defined in the Partnership Agreement. The right to convert the Class 2 LTIP Units into Partnership Common Units and the right to receive the Cash Amount or the REIT Share Amount (in the Company's sole discretion) in exchange for Partnership Common Units do not have expiration dates.

SEC source: 0001096906-23-000356 · form4.xml · derivative · entry 1

Fisher Joseph D · CIK 0001691531 · President-CFO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 266,934

Underlying: Common Stock · 23,246 shares

Expires not disclosed

F1 · security: Represents Class 2 LTIP Units (the "Class 2 LTIP Units") in United Dominion Realty, L.P., a Delaware limited partnership (the "UDR Partnership"). UDR, Inc. (the "Company") is the parent company and sole general partner of the UDR Partnership.

F2 · derivative.exercise_price: Subject to the conditions set forth in the Amended and Restated Agreement of Limited Partnership of the UDR Partnership (the "Partnership Agreement") and subject to the vesting conditions specified with respect to each Class 2 LTIP Unit, each Class 2 LTIP Unit may be converted, at the election of the holder, into a unit of limited partnership of the UDR Partnership (a "Partnership Common Unit"), provided that such Class 2 LTIP Unit has been outstanding for at least two years from the date of grant.

F3 · derivative.exercise_price: A holder of Partnership Common Units has the right to require the UDR Partnership to redeem all or a portion of the Partnership Common Units held by the holder in exchange for a cash payment based on the market value of the Company's Common Stock at the time of redemption, as defined in the Partnership Agreement (the "Cash Amount"). However, the UDR Partnership's obligation to pay the Cash Amount is subject the prior right of the Company to acquire such Partnership Common Units in exchange for either the Cash Amount or shares of the Company's Common Stock.

F4 · derivative.exercise_price: The Company, as the general partner of the UDR Partnership, may, in its sole discretion, purchase the Partnership Common Units by paying the limited partner either the Cash Amount or the REIT Share Amount (generally one share of the Company's Common Stock for each Partnership Common Unit), as such terms are defined in the Partnership Agreement. The right to convert the Class 2 LTIP Units into Partnership Common Units and the right to receive the Cash Amount or the REIT Share Amount (in the Company's sole discretion) in exchange for Partnership Common Units do not have expiration dates.

F5 · shares: The Class 2 LTIP Units vest only to the extent that pre-established performance metrics are met for the applicable performance period, subject to continuing employment. Except as otherwise set forth in the UDR, Inc. 1999 Long-Term Incentive Plan, as amended from time to time, except Section 14.9 thereof, the Partnership Agreement, or as determined by the Compensation and Management Development Committee of the Company's Board of Directors (the "Committee"), in its sole discretion, for awards made prior to 2021, vesting of Class 2 LTIP Units shall cease upon the date of termination for any reason, and no unvested Class 2 LTIP Units shall thereafter become vested.

F6 · shares: For awards made in 2021 and thereafter, in the event of a change of control of the Company, the Class 2 LTIP Units will vest only if the holder's employment or other service relationship with the Company is terminated by the Company without cause, or by the holder for good reason, in each case on or within 12 months following the date of a change of control. Further, all restrictions on outstanding awards that have been earned shall lapse upon the Company's termination of the holder's employment without cause or the holder's termination of employment for good reason.

F7 · shares: The vesting of these Class 2 LTIP Units occurs on the date the Committee determines performance (the "Determination Date") for the applicable performance period ending on December 31, 2022 based on: a goal measured by the Company's relative total shareholder return ("TSR") as compared to an apartment peer group over a three-year cumulative performance period; a goal measured by the Company's relative TSR as compared to a REIT peer group over a three-year cumulative performance period; a goal measured by the Company's relative FFO as Adjusted growth rate as compared to an apartment peer group over a three-year cumulative performance period; and a goal measured by the Company's relative FFO as Adjusted growth rate as compared to an apartment peer group over a three-year cumulative performance period.

F8 · shares: Amount represents the portion of the award (including dividends) forfeited when performance results were determined by the Committee for the applicable portion of the award on the Determination Date, February 9, 2023.

F2 · derivative.exercise_date: Subject to the conditions set forth in the Amended and Restated Agreement of Limited Partnership of the UDR Partnership (the "Partnership Agreement") and subject to the vesting conditions specified with respect to each Class 2 LTIP Unit, each Class 2 LTIP Unit may be converted, at the election of the holder, into a unit of limited partnership of the UDR Partnership (a "Partnership Common Unit"), provided that such Class 2 LTIP Unit has been outstanding for at least two years from the date of grant.

F3 · derivative.exercise_date: A holder of Partnership Common Units has the right to require the UDR Partnership to redeem all or a portion of the Partnership Common Units held by the holder in exchange for a cash payment based on the market value of the Company's Common Stock at the time of redemption, as defined in the Partnership Agreement (the "Cash Amount"). However, the UDR Partnership's obligation to pay the Cash Amount is subject the prior right of the Company to acquire such Partnership Common Units in exchange for either the Cash Amount or shares of the Company's Common Stock.

F4 · derivative.exercise_date: The Company, as the general partner of the UDR Partnership, may, in its sole discretion, purchase the Partnership Common Units by paying the limited partner either the Cash Amount or the REIT Share Amount (generally one share of the Company's Common Stock for each Partnership Common Unit), as such terms are defined in the Partnership Agreement. The right to convert the Class 2 LTIP Units into Partnership Common Units and the right to receive the Cash Amount or the REIT Share Amount (in the Company's sole discretion) in exchange for Partnership Common Units do not have expiration dates.

F5 · derivative.exercise_date: The Class 2 LTIP Units vest only to the extent that pre-established performance metrics are met for the applicable performance period, subject to continuing employment. Except as otherwise set forth in the UDR, Inc. 1999 Long-Term Incentive Plan, as amended from time to time, except Section 14.9 thereof, the Partnership Agreement, or as determined by the Compensation and Management Development Committee of the Company's Board of Directors (the "Committee"), in its sole discretion, for awards made prior to 2021, vesting of Class 2 LTIP Units shall cease upon the date of termination for any reason, and no unvested Class 2 LTIP Units shall thereafter become vested.

F6 · derivative.exercise_date: For awards made in 2021 and thereafter, in the event of a change of control of the Company, the Class 2 LTIP Units will vest only if the holder's employment or other service relationship with the Company is terminated by the Company without cause, or by the holder for good reason, in each case on or within 12 months following the date of a change of control. Further, all restrictions on outstanding awards that have been earned shall lapse upon the Company's termination of the holder's employment without cause or the holder's termination of employment for good reason.

F7 · derivative.exercise_date: The vesting of these Class 2 LTIP Units occurs on the date the Committee determines performance (the "Determination Date") for the applicable performance period ending on December 31, 2022 based on: a goal measured by the Company's relative total shareholder return ("TSR") as compared to an apartment peer group over a three-year cumulative performance period; a goal measured by the Company's relative TSR as compared to a REIT peer group over a three-year cumulative performance period; a goal measured by the Company's relative FFO as Adjusted growth rate as compared to an apartment peer group over a three-year cumulative performance period; and a goal measured by the Company's relative FFO as Adjusted growth rate as compared to an apartment peer group over a three-year cumulative performance period.

F4 · derivative.expiration_date: The Company, as the general partner of the UDR Partnership, may, in its sole discretion, purchase the Partnership Common Units by paying the limited partner either the Cash Amount or the REIT Share Amount (generally one share of the Company's Common Stock for each Partnership Common Unit), as such terms are defined in the Partnership Agreement. The right to convert the Class 2 LTIP Units into Partnership Common Units and the right to receive the Cash Amount or the REIT Share Amount (in the Company's sole discretion) in exchange for Partnership Common Units do not have expiration dates.

F2 · derivative.underlying: Subject to the conditions set forth in the Amended and Restated Agreement of Limited Partnership of the UDR Partnership (the "Partnership Agreement") and subject to the vesting conditions specified with respect to each Class 2 LTIP Unit, each Class 2 LTIP Unit may be converted, at the election of the holder, into a unit of limited partnership of the UDR Partnership (a "Partnership Common Unit"), provided that such Class 2 LTIP Unit has been outstanding for at least two years from the date of grant.

F3 · derivative.underlying: A holder of Partnership Common Units has the right to require the UDR Partnership to redeem all or a portion of the Partnership Common Units held by the holder in exchange for a cash payment based on the market value of the Company's Common Stock at the time of redemption, as defined in the Partnership Agreement (the "Cash Amount"). However, the UDR Partnership's obligation to pay the Cash Amount is subject the prior right of the Company to acquire such Partnership Common Units in exchange for either the Cash Amount or shares of the Company's Common Stock.

F4 · derivative.underlying: The Company, as the general partner of the UDR Partnership, may, in its sole discretion, purchase the Partnership Common Units by paying the limited partner either the Cash Amount or the REIT Share Amount (generally one share of the Company's Common Stock for each Partnership Common Unit), as such terms are defined in the Partnership Agreement. The right to convert the Class 2 LTIP Units into Partnership Common Units and the right to receive the Cash Amount or the REIT Share Amount (in the Company's sole discretion) in exchange for Partnership Common Units do not have expiration dates.

SEC source: 0001225208-23-001542 · doc4.xml · nonDerivative · entry 1

ALCOCK HARRY G · CIK 0001229387 · SVP-Chief Investment Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 41,675

F1 · kind: Represents shares of restricted stock withheld to satisfy the reporting person's tax withholding obligation upon vesting of restricted stock. The deemed disposition of the withheld shares is exempt pursuant to Rule 16b-3(e).

SEC source: 0001225208-23-001541 · doc4.xml · nonDerivative · entry 1

Fisher Joseph D · CIK 0001691531 · President-CFO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 4,794

F1 · kind: Represents shares of restricted stock withheld to satisfy the reporting person's tax withholding obligation upon vesting of restricted stock. The deemed disposition of the withheld shares is exempt pursuant to Rule 16b-3(e).

SEC source: 0001096906-23-000033 · form4.xml · derivative · entry 2

TOOMEY THOMAS W · CIK 0001195697 · Director · Chairman and CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 5,037,932

Underlying: Common Stock · 511,571 shares

Expires 2033-01-03

F1 · security: Represents Class 2 Performance LTIP Units in United Dominion Realty, L.P., a Delaware limited partnership (the "UDR Partnership"). UDR, Inc. (the "Company") is the parent company and sole general partner of the UDR Partnership.

F2 · derivative.exercise_price: Subject to the conditions set forth in the Eleventh Amendment to the Amended and Restated Agreement of Limited Partnership of the UDR Partnership (the "Partnership Agreement"), each Class 2 Performance LTIP Unit may be converted, at the election of the holder, into a Class 2 LTIP Unit at any time (i) on or after when the Class 2 Performance LTIP Unit has vested (as described in footnotes 8, 9, 10, 11, 12 & 13 below) and (ii) before the expiration date of the Class 2 Performance LTIP Unit.

F3 · derivative.exercise_price: Class 2 Performance LTIP Units convert to a number of Class 2 LTIP Units equal to (i) the applicable Performance LTIP Unit Value, which is calculated as the product of (x) the excess (if any) of the REIT Share Value over the Issue Price for the Class 2 Performance Unit and (y) the Conversion Factor, multiplied by (ii) the number of Class 2 Performance LTIP Units being converted, and divided by (iii) the REIT Share Value on the Conversion Date, as such terms are defined in the Partnership Agreement.

F4 · derivative.exercise_price: Subject to the conditions set forth in the Eleventh Amendment to the Partnership Agreement and subject to any vesting conditions specified with respect to each Class 2 LTIP Unit, each Class 2 LTIP Unit may be converted, at the election of the holder, into a unit of limited partnership of the UDR Partnership (a "Partnership Common Unit"), provided that such Class 2 LTIP Unit has been outstanding for at least two years from the date of grant.

F5 · derivative.exercise_price: A holder of Partnership Common Units has the right to require the UDR Partnership to redeem all or a portion of the Partnership Common Units held by the holder in exchange for a cash payment based on the market value of the Company's Common Stock at the time of redemption, as defined in the Partnership Agreement (the "Cash Amount"). However, the UDR Partnership's obligation to pay the Cash Amount is subject the prior right of the Company to acquire such Partnership Common Units in exchange for either the Cash Amount or shares of the Company's Common Stock, as described in footnote 6 below.

F6 · derivative.exercise_price: The Company, as the general partner of the UDR Partnership, may, in its sole discretion, purchase the Partnership Common Units by paying the limited partner either the Cash Amount or the REIT Share Amount (generally one share of the Company's Common Stock for each Partnership Common Unit), as such terms are defined in the Partnership Agreement. The right to convert the Class 2 LTIP Units into Partnership Common Units and the right to receive the Cash Amount or the REIT Share Amount (in the Company's sole discretion) in exchange for Partnership Common Units do not have expiration dates.

F7 · shares: Amount represents the maximum award (including dividends) that could be earned, which is subject to forfeiture when the performance results are determined.

F8 · shares: The Class 2 Performance LTIP Units will vest only to the extent that pre-established performance metrics are met for the applicable performance period, subject to continuing employment. Except as otherwise set forth in the UDR, Inc. 1999 Long-Term Incentive Plan, as amended from time to time, except Section 14.9 thereof, the Partnership Agreement, or as determined by the Compensation Committee of the Company's Board of Directors (the "Committee"), in its sole discretion, vesting of the Class 2 Performance LTIP Units shall cease upon the date of termination for any reason other than in the event of a change of control of the Company, and no unvested Class 2 Performance LTIP Units shall thereafter become vested.

F9 · shares: In the event of a change of control of the Company, the Class 2 Performance LTIP Units will vest only if the holder's employment or other service relationship with the Company is terminated by the Company without cause, or by the holder for good reason, in each case on or within 12 months following the date of a change of control. Further, all restrictions on outstanding awards that have been earned shall lapse upon the Company's termination of the holder's employment without cause or the holder's termination of employment for good reason.

F12 · shares: The vesting of these Class 2 Performance LTIP Units shall be determined as follows: 30 percent shall be based upon the Committee's subjective determination, in its sole discretion, of the executive officer's performance with respect to individual performance objectives; and 70 percent shall be based on the pre-determined financial metrics. These Class 2 Performance LTIP Units will vest upon a determination by the Committee after the completion of the applicable performance period.

F13 · shares: The portion of these Class 2 LTIP Units that vests based upon the achievement of pre-determined financial metrics shall be determined as follows: 35 percent based on an operations index goal; 30 percent based on an FFO as Adjusted per share goal; 15 percent based on a transactions index goal; 10 percent based on a GRESB percentile goal; and 10 percent based on an associate engagement & DEI goal, each over a one-year period.

F2 · derivative.exercise_date: Subject to the conditions set forth in the Eleventh Amendment to the Amended and Restated Agreement of Limited Partnership of the UDR Partnership (the "Partnership Agreement"), each Class 2 Performance LTIP Unit may be converted, at the election of the holder, into a Class 2 LTIP Unit at any time (i) on or after when the Class 2 Performance LTIP Unit has vested (as described in footnotes 8, 9, 10, 11, 12 & 13 below) and (ii) before the expiration date of the Class 2 Performance LTIP Unit.

F3 · derivative.exercise_date: Class 2 Performance LTIP Units convert to a number of Class 2 LTIP Units equal to (i) the applicable Performance LTIP Unit Value, which is calculated as the product of (x) the excess (if any) of the REIT Share Value over the Issue Price for the Class 2 Performance Unit and (y) the Conversion Factor, multiplied by (ii) the number of Class 2 Performance LTIP Units being converted, and divided by (iii) the REIT Share Value on the Conversion Date, as such terms are defined in the Partnership Agreement.

F4 · derivative.exercise_date: Subject to the conditions set forth in the Eleventh Amendment to the Partnership Agreement and subject to any vesting conditions specified with respect to each Class 2 LTIP Unit, each Class 2 LTIP Unit may be converted, at the election of the holder, into a unit of limited partnership of the UDR Partnership (a "Partnership Common Unit"), provided that such Class 2 LTIP Unit has been outstanding for at least two years from the date of grant.

F5 · derivative.exercise_date: A holder of Partnership Common Units has the right to require the UDR Partnership to redeem all or a portion of the Partnership Common Units held by the holder in exchange for a cash payment based on the market value of the Company's Common Stock at the time of redemption, as defined in the Partnership Agreement (the "Cash Amount"). However, the UDR Partnership's obligation to pay the Cash Amount is subject the prior right of the Company to acquire such Partnership Common Units in exchange for either the Cash Amount or shares of the Company's Common Stock, as described in footnote 6 below.

F6 · derivative.exercise_date: The Company, as the general partner of the UDR Partnership, may, in its sole discretion, purchase the Partnership Common Units by paying the limited partner either the Cash Amount or the REIT Share Amount (generally one share of the Company's Common Stock for each Partnership Common Unit), as such terms are defined in the Partnership Agreement. The right to convert the Class 2 LTIP Units into Partnership Common Units and the right to receive the Cash Amount or the REIT Share Amount (in the Company's sole discretion) in exchange for Partnership Common Units do not have expiration dates.

F8 · derivative.exercise_date: The Class 2 Performance LTIP Units will vest only to the extent that pre-established performance metrics are met for the applicable performance period, subject to continuing employment. Except as otherwise set forth in the UDR, Inc. 1999 Long-Term Incentive Plan, as amended from time to time, except Section 14.9 thereof, the Partnership Agreement, or as determined by the Compensation Committee of the Company's Board of Directors (the "Committee"), in its sole discretion, vesting of the Class 2 Performance LTIP Units shall cease upon the date of termination for any reason other than in the event of a change of control of the Company, and no unvested Class 2 Performance LTIP Units shall thereafter become vested.

F9 · derivative.exercise_date: In the event of a change of control of the Company, the Class 2 Performance LTIP Units will vest only if the holder's employment or other service relationship with the Company is terminated by the Company without cause, or by the holder for good reason, in each case on or within 12 months following the date of a change of control. Further, all restrictions on outstanding awards that have been earned shall lapse upon the Company's termination of the holder's employment without cause or the holder's termination of employment for good reason.

F12 · derivative.exercise_date: The vesting of these Class 2 Performance LTIP Units shall be determined as follows: 30 percent shall be based upon the Committee's subjective determination, in its sole discretion, of the executive officer's performance with respect to individual performance objectives; and 70 percent shall be based on the pre-determined financial metrics. These Class 2 Performance LTIP Units will vest upon a determination by the Committee after the completion of the applicable performance period.

F13 · derivative.exercise_date: The portion of these Class 2 LTIP Units that vests based upon the achievement of pre-determined financial metrics shall be determined as follows: 35 percent based on an operations index goal; 30 percent based on an FFO as Adjusted per share goal; 15 percent based on a transactions index goal; 10 percent based on a GRESB percentile goal; and 10 percent based on an associate engagement & DEI goal, each over a one-year period.

F2 · derivative.underlying: Subject to the conditions set forth in the Eleventh Amendment to the Amended and Restated Agreement of Limited Partnership of the UDR Partnership (the "Partnership Agreement"), each Class 2 Performance LTIP Unit may be converted, at the election of the holder, into a Class 2 LTIP Unit at any time (i) on or after when the Class 2 Performance LTIP Unit has vested (as described in footnotes 8, 9, 10, 11, 12 & 13 below) and (ii) before the expiration date of the Class 2 Performance LTIP Unit.

F3 · derivative.underlying: Class 2 Performance LTIP Units convert to a number of Class 2 LTIP Units equal to (i) the applicable Performance LTIP Unit Value, which is calculated as the product of (x) the excess (if any) of the REIT Share Value over the Issue Price for the Class 2 Performance Unit and (y) the Conversion Factor, multiplied by (ii) the number of Class 2 Performance LTIP Units being converted, and divided by (iii) the REIT Share Value on the Conversion Date, as such terms are defined in the Partnership Agreement.

F4 · derivative.underlying: Subject to the conditions set forth in the Eleventh Amendment to the Partnership Agreement and subject to any vesting conditions specified with respect to each Class 2 LTIP Unit, each Class 2 LTIP Unit may be converted, at the election of the holder, into a unit of limited partnership of the UDR Partnership (a "Partnership Common Unit"), provided that such Class 2 LTIP Unit has been outstanding for at least two years from the date of grant.

F5 · derivative.underlying: A holder of Partnership Common Units has the right to require the UDR Partnership to redeem all or a portion of the Partnership Common Units held by the holder in exchange for a cash payment based on the market value of the Company's Common Stock at the time of redemption, as defined in the Partnership Agreement (the "Cash Amount"). However, the UDR Partnership's obligation to pay the Cash Amount is subject the prior right of the Company to acquire such Partnership Common Units in exchange for either the Cash Amount or shares of the Company's Common Stock, as described in footnote 6 below.

F6 · derivative.underlying: The Company, as the general partner of the UDR Partnership, may, in its sole discretion, purchase the Partnership Common Units by paying the limited partner either the Cash Amount or the REIT Share Amount (generally one share of the Company's Common Stock for each Partnership Common Unit), as such terms are defined in the Partnership Agreement. The right to convert the Class 2 LTIP Units into Partnership Common Units and the right to receive the Cash Amount or the REIT Share Amount (in the Company's sole discretion) in exchange for Partnership Common Units do not have expiration dates.

F8 · derivative.underlying: The Class 2 Performance LTIP Units will vest only to the extent that pre-established performance metrics are met for the applicable performance period, subject to continuing employment. Except as otherwise set forth in the UDR, Inc. 1999 Long-Term Incentive Plan, as amended from time to time, except Section 14.9 thereof, the Partnership Agreement, or as determined by the Compensation Committee of the Company's Board of Directors (the "Committee"), in its sole discretion, vesting of the Class 2 Performance LTIP Units shall cease upon the date of termination for any reason other than in the event of a change of control of the Company, and no unvested Class 2 Performance LTIP Units shall thereafter become vested.

F9 · derivative.underlying: In the event of a change of control of the Company, the Class 2 Performance LTIP Units will vest only if the holder's employment or other service relationship with the Company is terminated by the Company without cause, or by the holder for good reason, in each case on or within 12 months following the date of a change of control. Further, all restrictions on outstanding awards that have been earned shall lapse upon the Company's termination of the holder's employment without cause or the holder's termination of employment for good reason.

F12 · derivative.underlying: The vesting of these Class 2 Performance LTIP Units shall be determined as follows: 30 percent shall be based upon the Committee's subjective determination, in its sole discretion, of the executive officer's performance with respect to individual performance objectives; and 70 percent shall be based on the pre-determined financial metrics. These Class 2 Performance LTIP Units will vest upon a determination by the Committee after the completion of the applicable performance period.

F13 · derivative.underlying: The portion of these Class 2 LTIP Units that vests based upon the achievement of pre-determined financial metrics shall be determined as follows: 35 percent based on an operations index goal; 30 percent based on an FFO as Adjusted per share goal; 15 percent based on a transactions index goal; 10 percent based on a GRESB percentile goal; and 10 percent based on an associate engagement & DEI goal, each over a one-year period.

SEC source: 0001096906-23-000033 · form4.xml · derivative · entry 1

TOOMEY THOMAS W · CIK 0001195697 · Director · Chairman and CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 4,526,361

Underlying: Common Stock · 1,705,240 shares

Expires 2033-01-03

F1 · security: Represents Class 2 Performance LTIP Units in United Dominion Realty, L.P., a Delaware limited partnership (the "UDR Partnership"). UDR, Inc. (the "Company") is the parent company and sole general partner of the UDR Partnership.

F2 · derivative.exercise_price: Subject to the conditions set forth in the Eleventh Amendment to the Amended and Restated Agreement of Limited Partnership of the UDR Partnership (the "Partnership Agreement"), each Class 2 Performance LTIP Unit may be converted, at the election of the holder, into a Class 2 LTIP Unit at any time (i) on or after when the Class 2 Performance LTIP Unit has vested (as described in footnotes 8, 9, 10, 11, 12 & 13 below) and (ii) before the expiration date of the Class 2 Performance LTIP Unit.

F3 · derivative.exercise_price: Class 2 Performance LTIP Units convert to a number of Class 2 LTIP Units equal to (i) the applicable Performance LTIP Unit Value, which is calculated as the product of (x) the excess (if any) of the REIT Share Value over the Issue Price for the Class 2 Performance Unit and (y) the Conversion Factor, multiplied by (ii) the number of Class 2 Performance LTIP Units being converted, and divided by (iii) the REIT Share Value on the Conversion Date, as such terms are defined in the Partnership Agreement.

F4 · derivative.exercise_price: Subject to the conditions set forth in the Eleventh Amendment to the Partnership Agreement and subject to any vesting conditions specified with respect to each Class 2 LTIP Unit, each Class 2 LTIP Unit may be converted, at the election of the holder, into a unit of limited partnership of the UDR Partnership (a "Partnership Common Unit"), provided that such Class 2 LTIP Unit has been outstanding for at least two years from the date of grant.

F5 · derivative.exercise_price: A holder of Partnership Common Units has the right to require the UDR Partnership to redeem all or a portion of the Partnership Common Units held by the holder in exchange for a cash payment based on the market value of the Company's Common Stock at the time of redemption, as defined in the Partnership Agreement (the "Cash Amount"). However, the UDR Partnership's obligation to pay the Cash Amount is subject the prior right of the Company to acquire such Partnership Common Units in exchange for either the Cash Amount or shares of the Company's Common Stock, as described in footnote 6 below.

F6 · derivative.exercise_price: The Company, as the general partner of the UDR Partnership, may, in its sole discretion, purchase the Partnership Common Units by paying the limited partner either the Cash Amount or the REIT Share Amount (generally one share of the Company's Common Stock for each Partnership Common Unit), as such terms are defined in the Partnership Agreement. The right to convert the Class 2 LTIP Units into Partnership Common Units and the right to receive the Cash Amount or the REIT Share Amount (in the Company's sole discretion) in exchange for Partnership Common Units do not have expiration dates.

F7 · shares: Amount represents the maximum award (including dividends) that could be earned, which is subject to forfeiture when the performance results are determined.

F8 · shares: The Class 2 Performance LTIP Units will vest only to the extent that pre-established performance metrics are met for the applicable performance period, subject to continuing employment. Except as otherwise set forth in the UDR, Inc. 1999 Long-Term Incentive Plan, as amended from time to time, except Section 14.9 thereof, the Partnership Agreement, or as determined by the Compensation Committee of the Company's Board of Directors (the "Committee"), in its sole discretion, vesting of the Class 2 Performance LTIP Units shall cease upon the date of termination for any reason other than in the event of a change of control of the Company, and no unvested Class 2 Performance LTIP Units shall thereafter become vested.

F9 · shares: In the event of a change of control of the Company, the Class 2 Performance LTIP Units will vest only if the holder's employment or other service relationship with the Company is terminated by the Company without cause, or by the holder for good reason, in each case on or within 12 months following the date of a change of control. Further, all restrictions on outstanding awards that have been earned shall lapse upon the Company's termination of the holder's employment without cause or the holder's termination of employment for good reason.

F10 · shares: The vesting of these Class 2 Performance LTIP Units shall be determined as follows: 35 percent shall be based on a goal measured by the Company's relative total shareholder return ("TSR") as compared to an apartment peer group over a three-year cumulative performance period (the "3-Year Relative Apartment Peer TSR Metric"); 30 percent shall be based on the achievement of a pre-determined FFO as Adjusted goal over a one-year period (the "1-Year FFO as Adjusted Metric"); 20 percent shall be determined based on a goal measured by the Company's relative TSR as compared to a REIT peer group over a three-year cumulative performance period (the "3-Year Relative REIT TSR Metric"); and 15 percent shall be based on a goal measured by the Company's relative FFO as Adjusted growth rate as compared to an apartment peer group over a three-year cumulative performance period (the "3-Year Relative FFO as Adjusted Metric").

F11 · shares: The portions of these Class 2 Performance LTIP Units based upon the 3-Year Relative Apartment Peer TSR Metric, the 3-Year Relative REIT TSR Metric and the 3-Year Relative FFO as Adjusted Metric will vest on the date the Committee determines performance (the "Determination Date"). The portion of the Class 2 LTIP Units based upon the 1-Year FFO as Adjusted Metric will vest 50 percent on the Determination Date, and 50 percent on the one year anniversary thereof.

F2 · derivative.exercise_date: Subject to the conditions set forth in the Eleventh Amendment to the Amended and Restated Agreement of Limited Partnership of the UDR Partnership (the "Partnership Agreement"), each Class 2 Performance LTIP Unit may be converted, at the election of the holder, into a Class 2 LTIP Unit at any time (i) on or after when the Class 2 Performance LTIP Unit has vested (as described in footnotes 8, 9, 10, 11, 12 & 13 below) and (ii) before the expiration date of the Class 2 Performance LTIP Unit.

F3 · derivative.exercise_date: Class 2 Performance LTIP Units convert to a number of Class 2 LTIP Units equal to (i) the applicable Performance LTIP Unit Value, which is calculated as the product of (x) the excess (if any) of the REIT Share Value over the Issue Price for the Class 2 Performance Unit and (y) the Conversion Factor, multiplied by (ii) the number of Class 2 Performance LTIP Units being converted, and divided by (iii) the REIT Share Value on the Conversion Date, as such terms are defined in the Partnership Agreement.

F4 · derivative.exercise_date: Subject to the conditions set forth in the Eleventh Amendment to the Partnership Agreement and subject to any vesting conditions specified with respect to each Class 2 LTIP Unit, each Class 2 LTIP Unit may be converted, at the election of the holder, into a unit of limited partnership of the UDR Partnership (a "Partnership Common Unit"), provided that such Class 2 LTIP Unit has been outstanding for at least two years from the date of grant.

F5 · derivative.exercise_date: A holder of Partnership Common Units has the right to require the UDR Partnership to redeem all or a portion of the Partnership Common Units held by the holder in exchange for a cash payment based on the market value of the Company's Common Stock at the time of redemption, as defined in the Partnership Agreement (the "Cash Amount"). However, the UDR Partnership's obligation to pay the Cash Amount is subject the prior right of the Company to acquire such Partnership Common Units in exchange for either the Cash Amount or shares of the Company's Common Stock, as described in footnote 6 below.

F6 · derivative.exercise_date: The Company, as the general partner of the UDR Partnership, may, in its sole discretion, purchase the Partnership Common Units by paying the limited partner either the Cash Amount or the REIT Share Amount (generally one share of the Company's Common Stock for each Partnership Common Unit), as such terms are defined in the Partnership Agreement. The right to convert the Class 2 LTIP Units into Partnership Common Units and the right to receive the Cash Amount or the REIT Share Amount (in the Company's sole discretion) in exchange for Partnership Common Units do not have expiration dates.

F8 · derivative.exercise_date: The Class 2 Performance LTIP Units will vest only to the extent that pre-established performance metrics are met for the applicable performance period, subject to continuing employment. Except as otherwise set forth in the UDR, Inc. 1999 Long-Term Incentive Plan, as amended from time to time, except Section 14.9 thereof, the Partnership Agreement, or as determined by the Compensation Committee of the Company's Board of Directors (the "Committee"), in its sole discretion, vesting of the Class 2 Performance LTIP Units shall cease upon the date of termination for any reason other than in the event of a change of control of the Company, and no unvested Class 2 Performance LTIP Units shall thereafter become vested.

F9 · derivative.exercise_date: In the event of a change of control of the Company, the Class 2 Performance LTIP Units will vest only if the holder's employment or other service relationship with the Company is terminated by the Company without cause, or by the holder for good reason, in each case on or within 12 months following the date of a change of control. Further, all restrictions on outstanding awards that have been earned shall lapse upon the Company's termination of the holder's employment without cause or the holder's termination of employment for good reason.

F10 · derivative.exercise_date: The vesting of these Class 2 Performance LTIP Units shall be determined as follows: 35 percent shall be based on a goal measured by the Company's relative total shareholder return ("TSR") as compared to an apartment peer group over a three-year cumulative performance period (the "3-Year Relative Apartment Peer TSR Metric"); 30 percent shall be based on the achievement of a pre-determined FFO as Adjusted goal over a one-year period (the "1-Year FFO as Adjusted Metric"); 20 percent shall be determined based on a goal measured by the Company's relative TSR as compared to a REIT peer group over a three-year cumulative performance period (the "3-Year Relative REIT TSR Metric"); and 15 percent shall be based on a goal measured by the Company's relative FFO as Adjusted growth rate as compared to an apartment peer group over a three-year cumulative performance period (the "3-Year Relative FFO as Adjusted Metric").

F11 · derivative.exercise_date: The portions of these Class 2 Performance LTIP Units based upon the 3-Year Relative Apartment Peer TSR Metric, the 3-Year Relative REIT TSR Metric and the 3-Year Relative FFO as Adjusted Metric will vest on the date the Committee determines performance (the "Determination Date"). The portion of the Class 2 LTIP Units based upon the 1-Year FFO as Adjusted Metric will vest 50 percent on the Determination Date, and 50 percent on the one year anniversary thereof.

F2 · derivative.underlying: Subject to the conditions set forth in the Eleventh Amendment to the Amended and Restated Agreement of Limited Partnership of the UDR Partnership (the "Partnership Agreement"), each Class 2 Performance LTIP Unit may be converted, at the election of the holder, into a Class 2 LTIP Unit at any time (i) on or after when the Class 2 Performance LTIP Unit has vested (as described in footnotes 8, 9, 10, 11, 12 & 13 below) and (ii) before the expiration date of the Class 2 Performance LTIP Unit.

F3 · derivative.underlying: Class 2 Performance LTIP Units convert to a number of Class 2 LTIP Units equal to (i) the applicable Performance LTIP Unit Value, which is calculated as the product of (x) the excess (if any) of the REIT Share Value over the Issue Price for the Class 2 Performance Unit and (y) the Conversion Factor, multiplied by (ii) the number of Class 2 Performance LTIP Units being converted, and divided by (iii) the REIT Share Value on the Conversion Date, as such terms are defined in the Partnership Agreement.

F4 · derivative.underlying: Subject to the conditions set forth in the Eleventh Amendment to the Partnership Agreement and subject to any vesting conditions specified with respect to each Class 2 LTIP Unit, each Class 2 LTIP Unit may be converted, at the election of the holder, into a unit of limited partnership of the UDR Partnership (a "Partnership Common Unit"), provided that such Class 2 LTIP Unit has been outstanding for at least two years from the date of grant.

F5 · derivative.underlying: A holder of Partnership Common Units has the right to require the UDR Partnership to redeem all or a portion of the Partnership Common Units held by the holder in exchange for a cash payment based on the market value of the Company's Common Stock at the time of redemption, as defined in the Partnership Agreement (the "Cash Amount"). However, the UDR Partnership's obligation to pay the Cash Amount is subject the prior right of the Company to acquire such Partnership Common Units in exchange for either the Cash Amount or shares of the Company's Common Stock, as described in footnote 6 below.

F6 · derivative.underlying: The Company, as the general partner of the UDR Partnership, may, in its sole discretion, purchase the Partnership Common Units by paying the limited partner either the Cash Amount or the REIT Share Amount (generally one share of the Company's Common Stock for each Partnership Common Unit), as such terms are defined in the Partnership Agreement. The right to convert the Class 2 LTIP Units into Partnership Common Units and the right to receive the Cash Amount or the REIT Share Amount (in the Company's sole discretion) in exchange for Partnership Common Units do not have expiration dates.

F8 · derivative.underlying: The Class 2 Performance LTIP Units will vest only to the extent that pre-established performance metrics are met for the applicable performance period, subject to continuing employment. Except as otherwise set forth in the UDR, Inc. 1999 Long-Term Incentive Plan, as amended from time to time, except Section 14.9 thereof, the Partnership Agreement, or as determined by the Compensation Committee of the Company's Board of Directors (the "Committee"), in its sole discretion, vesting of the Class 2 Performance LTIP Units shall cease upon the date of termination for any reason other than in the event of a change of control of the Company, and no unvested Class 2 Performance LTIP Units shall thereafter become vested.

F9 · derivative.underlying: In the event of a change of control of the Company, the Class 2 Performance LTIP Units will vest only if the holder's employment or other service relationship with the Company is terminated by the Company without cause, or by the holder for good reason, in each case on or within 12 months following the date of a change of control. Further, all restrictions on outstanding awards that have been earned shall lapse upon the Company's termination of the holder's employment without cause or the holder's termination of employment for good reason.

F10 · derivative.underlying: The vesting of these Class 2 Performance LTIP Units shall be determined as follows: 35 percent shall be based on a goal measured by the Company's relative total shareholder return ("TSR") as compared to an apartment peer group over a three-year cumulative performance period (the "3-Year Relative Apartment Peer TSR Metric"); 30 percent shall be based on the achievement of a pre-determined FFO as Adjusted goal over a one-year period (the "1-Year FFO as Adjusted Metric"); 20 percent shall be determined based on a goal measured by the Company's relative TSR as compared to a REIT peer group over a three-year cumulative performance period (the "3-Year Relative REIT TSR Metric"); and 15 percent shall be based on a goal measured by the Company's relative FFO as Adjusted growth rate as compared to an apartment peer group over a three-year cumulative performance period (the "3-Year Relative FFO as Adjusted Metric").

F11 · derivative.underlying: The portions of these Class 2 Performance LTIP Units based upon the 3-Year Relative Apartment Peer TSR Metric, the 3-Year Relative REIT TSR Metric and the 3-Year Relative FFO as Adjusted Metric will vest on the date the Committee determines performance (the "Determination Date"). The portion of the Class 2 LTIP Units based upon the 1-Year FFO as Adjusted Metric will vest 50 percent on the Determination Date, and 50 percent on the one year anniversary thereof.

SEC source: 0001096906-23-000032 · form4.xml · derivative · entry 1

GROVE JON A · CIK 0001195691 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 109,008

Underlying: Common Stock · 34,105 shares

Expires 2033-01-03

F1 · security: Represents Class 1 Performance LTIP Units in United Dominion Realty, L.P., a Delaware limited partnership (the "UDR Partnership"). UDR, Inc. (the "Company") is the parent company and sole general partner of the UDR Partnership.

F2 · derivative.exercise_price: Subject to the conditions set forth in the Eleventh Amendment to the Amended and Restated Agreement of Limited Partnership of the UDR Partnership (the "Partnership Agreement"), each Class 1 Performance LTIP Unit may be converted, at the election of the holder, into a Class 1 LTIP Unit at any time (i) on or after when the Class 1 Performance LTIP Unit has vested and (ii) before the expiration date of the Class 1 Performance LTIP Unit.

F3 · derivative.exercise_price: Class 1 Performance LTIP Units convert to a number of Class 1 LTIP Units equal to (i) the applicable Performance LTIP Unit Value, which is calculated as the product of (x) the excess (if any) of the REIT Share Value over the Issue Price for the Class 1 Performance Unit and (y) the Conversion Factor, multiplied by (ii) the number of Class 1 Performance LTIP Units being converted, and divided by (iii) the REIT Share Value on the Conversion Date, as such terms are defined in the Partnership Agreement.

F4 · derivative.exercise_price: Subject to the conditions set forth in the Eleventh Amendment to the Partnership Agreement and subject to any vesting conditions specified with respect to each Class 1 LTIP Unit, each Class 1 LTIP Unit may be converted, at the election of the holder, into a unit of limited partnership of the UDR Partnership (a "Partnership Common Unit"), provided that such Class 1 LTIP Unit has been outstanding for at least two years from the date of grant.

F5 · derivative.exercise_price: A holder of Partnership Common Units has the right to require the UDR Partnership to redeem all or a portion of the Partnership Common Units held by the holder in exchange for a cash payment based on the market value of the Company's Common Stock at the time of redemption, as defined in the Partnership Agreement (the "Cash Amount"). However, the UDR Partnership's obligation to pay the Cash Amount is subject the prior right of the Company to acquire such Partnership Common Units in exchange for either the Cash Amount or shares of the Company's Common Stock.

F6 · derivative.exercise_price: The Company, as the general partner of the UDR Partnership, may, in its sole discretion, purchase the Partnership Common Units by paying the limited partner either the Cash Amount or the REIT Share Amount (generally one share of the Company's Common Stock for each Partnership Common Unit), as such terms are defined in the Partnership Agreement. The right to convert the Class 1 LTIP Units into Partnership Common Units and the right to receive the Cash Amount or the REIT Share Amount (in the Company's sole discretion) in exchange for Partnership Common Units do not have expiration dates.

F7 · shares: The Class 1 Performance LTIP Units shall vest on the first anniversary of the vesting commencement date, which is January 3, 2024.

F2 · derivative.exercise_date: Subject to the conditions set forth in the Eleventh Amendment to the Amended and Restated Agreement of Limited Partnership of the UDR Partnership (the "Partnership Agreement"), each Class 1 Performance LTIP Unit may be converted, at the election of the holder, into a Class 1 LTIP Unit at any time (i) on or after when the Class 1 Performance LTIP Unit has vested and (ii) before the expiration date of the Class 1 Performance LTIP Unit.

F3 · derivative.exercise_date: Class 1 Performance LTIP Units convert to a number of Class 1 LTIP Units equal to (i) the applicable Performance LTIP Unit Value, which is calculated as the product of (x) the excess (if any) of the REIT Share Value over the Issue Price for the Class 1 Performance Unit and (y) the Conversion Factor, multiplied by (ii) the number of Class 1 Performance LTIP Units being converted, and divided by (iii) the REIT Share Value on the Conversion Date, as such terms are defined in the Partnership Agreement.

F4 · derivative.exercise_date: Subject to the conditions set forth in the Eleventh Amendment to the Partnership Agreement and subject to any vesting conditions specified with respect to each Class 1 LTIP Unit, each Class 1 LTIP Unit may be converted, at the election of the holder, into a unit of limited partnership of the UDR Partnership (a "Partnership Common Unit"), provided that such Class 1 LTIP Unit has been outstanding for at least two years from the date of grant.

F5 · derivative.exercise_date: A holder of Partnership Common Units has the right to require the UDR Partnership to redeem all or a portion of the Partnership Common Units held by the holder in exchange for a cash payment based on the market value of the Company's Common Stock at the time of redemption, as defined in the Partnership Agreement (the "Cash Amount"). However, the UDR Partnership's obligation to pay the Cash Amount is subject the prior right of the Company to acquire such Partnership Common Units in exchange for either the Cash Amount or shares of the Company's Common Stock.

F6 · derivative.exercise_date: The Company, as the general partner of the UDR Partnership, may, in its sole discretion, purchase the Partnership Common Units by paying the limited partner either the Cash Amount or the REIT Share Amount (generally one share of the Company's Common Stock for each Partnership Common Unit), as such terms are defined in the Partnership Agreement. The right to convert the Class 1 LTIP Units into Partnership Common Units and the right to receive the Cash Amount or the REIT Share Amount (in the Company's sole discretion) in exchange for Partnership Common Units do not have expiration dates.

F7 · derivative.exercise_date: The Class 1 Performance LTIP Units shall vest on the first anniversary of the vesting commencement date, which is January 3, 2024.

F2 · derivative.underlying: Subject to the conditions set forth in the Eleventh Amendment to the Amended and Restated Agreement of Limited Partnership of the UDR Partnership (the "Partnership Agreement"), each Class 1 Performance LTIP Unit may be converted, at the election of the holder, into a Class 1 LTIP Unit at any time (i) on or after when the Class 1 Performance LTIP Unit has vested and (ii) before the expiration date of the Class 1 Performance LTIP Unit.

F3 · derivative.underlying: Class 1 Performance LTIP Units convert to a number of Class 1 LTIP Units equal to (i) the applicable Performance LTIP Unit Value, which is calculated as the product of (x) the excess (if any) of the REIT Share Value over the Issue Price for the Class 1 Performance Unit and (y) the Conversion Factor, multiplied by (ii) the number of Class 1 Performance LTIP Units being converted, and divided by (iii) the REIT Share Value on the Conversion Date, as such terms are defined in the Partnership Agreement.

F4 · derivative.underlying: Subject to the conditions set forth in the Eleventh Amendment to the Partnership Agreement and subject to any vesting conditions specified with respect to each Class 1 LTIP Unit, each Class 1 LTIP Unit may be converted, at the election of the holder, into a unit of limited partnership of the UDR Partnership (a "Partnership Common Unit"), provided that such Class 1 LTIP Unit has been outstanding for at least two years from the date of grant.

F5 · derivative.underlying: A holder of Partnership Common Units has the right to require the UDR Partnership to redeem all or a portion of the Partnership Common Units held by the holder in exchange for a cash payment based on the market value of the Company's Common Stock at the time of redemption, as defined in the Partnership Agreement (the "Cash Amount"). However, the UDR Partnership's obligation to pay the Cash Amount is subject the prior right of the Company to acquire such Partnership Common Units in exchange for either the Cash Amount or shares of the Company's Common Stock.

F6 · derivative.underlying: The Company, as the general partner of the UDR Partnership, may, in its sole discretion, purchase the Partnership Common Units by paying the limited partner either the Cash Amount or the REIT Share Amount (generally one share of the Company's Common Stock for each Partnership Common Unit), as such terms are defined in the Partnership Agreement. The right to convert the Class 1 LTIP Units into Partnership Common Units and the right to receive the Cash Amount or the REIT Share Amount (in the Company's sole discretion) in exchange for Partnership Common Units do not have expiration dates.

F7 · derivative.underlying: The Class 1 Performance LTIP Units shall vest on the first anniversary of the vesting commencement date, which is January 3, 2024.

SEC source: 0001096906-23-000031 · form4.xml · derivative · entry 1

Nickelberry Kevin C · CIK 0001882598 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 11,930

Underlying: Common Stock · 7,256 shares

Expires not disclosed

F1 · security: Represents Class 1 LTIP Units in United Dominion Realty, L.P., a Delaware limited partnership (the "UDR Partnership"). UDR, Inc. (the "Company") is the parent company and sole general partner of the UDR Partnership.

F2 · derivative.exercise_price: Subject to the conditions set forth in the Eleventh Amendment to the Amended and Restated Agreement of Limited Partnership of the UDR Partnership (the "Partnership Agreement") and subject to the vesting conditions specified with respect to each Class 1 LTIP Unit (as described in footnote 5 below), each Class 1 LTIP Unit may be converted, at the election of the holder, into a unit of limited partnership of the UDR Partnership (a "Partnership Common Unit"), provided that such Class 1 LTIP Unit has been outstanding for at least two years from the date of grant.

F3 · derivative.exercise_price: A holder of Partnership Common Units has the right to require the UDR Partnership to redeem all or a portion of the Partnership Common Units held by the holder in exchange for a cash payment based on the market value of the Company's Common Stock at the time of redemption, as defined in the Partnership Agreement (the "Cash Amount"). However, the UDR Partnership's obligation to pay the Cash Amount is subject the prior right of the Company to acquire such Partnership Common Units in exchange for either the Cash Amount or shares of the Company's Common Stock.

F4 · derivative.exercise_price: The Company, as the general partner of the UDR Partnership, may, in its sole discretion, purchase the Partnership Common Units by paying the limited partner either the Cash Amount or the REIT Share Amount (generally one share of the Company's Common Stock for each Partnership Common Unit), as such terms are defined in the Partnership Agreement. The right to convert the Class 1 LTIP Units into Partnership Common Units and the right to receive the Cash Amount or the REIT Share Amount (in the Company's sole discretion) in exchange for Partnership Common Units do not have expiration dates.

F5 · shares: The Class 1 LTIP Units shall vest on the first anniversary of the vesting commencement date, which is January 3, 2024.

F2 · derivative.exercise_date: Subject to the conditions set forth in the Eleventh Amendment to the Amended and Restated Agreement of Limited Partnership of the UDR Partnership (the "Partnership Agreement") and subject to the vesting conditions specified with respect to each Class 1 LTIP Unit (as described in footnote 5 below), each Class 1 LTIP Unit may be converted, at the election of the holder, into a unit of limited partnership of the UDR Partnership (a "Partnership Common Unit"), provided that such Class 1 LTIP Unit has been outstanding for at least two years from the date of grant.

F3 · derivative.exercise_date: A holder of Partnership Common Units has the right to require the UDR Partnership to redeem all or a portion of the Partnership Common Units held by the holder in exchange for a cash payment based on the market value of the Company's Common Stock at the time of redemption, as defined in the Partnership Agreement (the "Cash Amount"). However, the UDR Partnership's obligation to pay the Cash Amount is subject the prior right of the Company to acquire such Partnership Common Units in exchange for either the Cash Amount or shares of the Company's Common Stock.

F4 · derivative.exercise_date: The Company, as the general partner of the UDR Partnership, may, in its sole discretion, purchase the Partnership Common Units by paying the limited partner either the Cash Amount or the REIT Share Amount (generally one share of the Company's Common Stock for each Partnership Common Unit), as such terms are defined in the Partnership Agreement. The right to convert the Class 1 LTIP Units into Partnership Common Units and the right to receive the Cash Amount or the REIT Share Amount (in the Company's sole discretion) in exchange for Partnership Common Units do not have expiration dates.

F5 · derivative.exercise_date: The Class 1 LTIP Units shall vest on the first anniversary of the vesting commencement date, which is January 3, 2024.

F4 · derivative.expiration_date: The Company, as the general partner of the UDR Partnership, may, in its sole discretion, purchase the Partnership Common Units by paying the limited partner either the Cash Amount or the REIT Share Amount (generally one share of the Company's Common Stock for each Partnership Common Unit), as such terms are defined in the Partnership Agreement. The right to convert the Class 1 LTIP Units into Partnership Common Units and the right to receive the Cash Amount or the REIT Share Amount (in the Company's sole discretion) in exchange for Partnership Common Units do not have expiration dates.

F2 · derivative.underlying: Subject to the conditions set forth in the Eleventh Amendment to the Amended and Restated Agreement of Limited Partnership of the UDR Partnership (the "Partnership Agreement") and subject to the vesting conditions specified with respect to each Class 1 LTIP Unit (as described in footnote 5 below), each Class 1 LTIP Unit may be converted, at the election of the holder, into a unit of limited partnership of the UDR Partnership (a "Partnership Common Unit"), provided that such Class 1 LTIP Unit has been outstanding for at least two years from the date of grant.

F3 · derivative.underlying: A holder of Partnership Common Units has the right to require the UDR Partnership to redeem all or a portion of the Partnership Common Units held by the holder in exchange for a cash payment based on the market value of the Company's Common Stock at the time of redemption, as defined in the Partnership Agreement (the "Cash Amount"). However, the UDR Partnership's obligation to pay the Cash Amount is subject the prior right of the Company to acquire such Partnership Common Units in exchange for either the Cash Amount or shares of the Company's Common Stock.

F4 · derivative.underlying: The Company, as the general partner of the UDR Partnership, may, in its sole discretion, purchase the Partnership Common Units by paying the limited partner either the Cash Amount or the REIT Share Amount (generally one share of the Company's Common Stock for each Partnership Common Unit), as such terms are defined in the Partnership Agreement. The right to convert the Class 1 LTIP Units into Partnership Common Units and the right to receive the Cash Amount or the REIT Share Amount (in the Company's sole discretion) in exchange for Partnership Common Units do not have expiration dates.

F5 · derivative.underlying: The Class 1 LTIP Units shall vest on the first anniversary of the vesting commencement date, which is January 3, 2024.

SEC source: 0001096906-23-000030 · form4.xml · derivative · entry 1

CATTANACH KATHERINE A · CIK 0001359435 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 23,989

Underlying: Common Stock · 5,571 shares

Expires not disclosed

F1 · security: Represents Class 1 LTIP Units in United Dominion Realty, L.P., a Delaware limited partnership (the "UDR Partnership"). UDR, Inc. (the "Company") is the parent company and sole general partner of the UDR Partnership.

F2 · derivative.exercise_price: Subject to the conditions set forth in the Eleventh Amendment to the Amended and Restated Agreement of Limited Partnership of the UDR Partnership (the "Partnership Agreement") and subject to the vesting conditions specified with respect to each Class 1 LTIP Unit (as described in footnote 5 below), each Class 1 LTIP Unit may be converted, at the election of the holder, into a unit of limited partnership of the UDR Partnership (a "Partnership Common Unit"), provided that such Class 1 LTIP Unit has been outstanding for at least two years from the date of grant.

F3 · derivative.exercise_price: A holder of Partnership Common Units has the right to require the UDR Partnership to redeem all or a portion of the Partnership Common Units held by the holder in exchange for a cash payment based on the market value of the Company's Common Stock at the time of redemption, as defined in the Partnership Agreement (the "Cash Amount"). However, the UDR Partnership's obligation to pay the Cash Amount is subject the prior right of the Company to acquire such Partnership Common Units in exchange for either the Cash Amount or shares of the Company's Common Stock.

F4 · derivative.exercise_price: The Company, as the general partner of the UDR Partnership, may, in its sole discretion, purchase the Partnership Common Units by paying the limited partner either the Cash Amount or the REIT Share Amount (generally one share of the Company's Common Stock for each Partnership Common Unit), as such terms are defined in the Partnership Agreement. The right to convert the Class 1 LTIP Units into Partnership Common Units and the right to receive the Cash Amount or the REIT Share Amount (in the Company's sole discretion) in exchange for Partnership Common Units do not have expiration dates.

F5 · shares: The Class 1 LTIP Units shall vest on the first anniversary of the vesting commencement date, which is January 3, 2024.

F2 · derivative.exercise_date: Subject to the conditions set forth in the Eleventh Amendment to the Amended and Restated Agreement of Limited Partnership of the UDR Partnership (the "Partnership Agreement") and subject to the vesting conditions specified with respect to each Class 1 LTIP Unit (as described in footnote 5 below), each Class 1 LTIP Unit may be converted, at the election of the holder, into a unit of limited partnership of the UDR Partnership (a "Partnership Common Unit"), provided that such Class 1 LTIP Unit has been outstanding for at least two years from the date of grant.

F3 · derivative.exercise_date: A holder of Partnership Common Units has the right to require the UDR Partnership to redeem all or a portion of the Partnership Common Units held by the holder in exchange for a cash payment based on the market value of the Company's Common Stock at the time of redemption, as defined in the Partnership Agreement (the "Cash Amount"). However, the UDR Partnership's obligation to pay the Cash Amount is subject the prior right of the Company to acquire such Partnership Common Units in exchange for either the Cash Amount or shares of the Company's Common Stock.

F4 · derivative.exercise_date: The Company, as the general partner of the UDR Partnership, may, in its sole discretion, purchase the Partnership Common Units by paying the limited partner either the Cash Amount or the REIT Share Amount (generally one share of the Company's Common Stock for each Partnership Common Unit), as such terms are defined in the Partnership Agreement. The right to convert the Class 1 LTIP Units into Partnership Common Units and the right to receive the Cash Amount or the REIT Share Amount (in the Company's sole discretion) in exchange for Partnership Common Units do not have expiration dates.

F5 · derivative.exercise_date: The Class 1 LTIP Units shall vest on the first anniversary of the vesting commencement date, which is January 3, 2024.

F4 · derivative.expiration_date: The Company, as the general partner of the UDR Partnership, may, in its sole discretion, purchase the Partnership Common Units by paying the limited partner either the Cash Amount or the REIT Share Amount (generally one share of the Company's Common Stock for each Partnership Common Unit), as such terms are defined in the Partnership Agreement. The right to convert the Class 1 LTIP Units into Partnership Common Units and the right to receive the Cash Amount or the REIT Share Amount (in the Company's sole discretion) in exchange for Partnership Common Units do not have expiration dates.

F2 · derivative.underlying: Subject to the conditions set forth in the Eleventh Amendment to the Amended and Restated Agreement of Limited Partnership of the UDR Partnership (the "Partnership Agreement") and subject to the vesting conditions specified with respect to each Class 1 LTIP Unit (as described in footnote 5 below), each Class 1 LTIP Unit may be converted, at the election of the holder, into a unit of limited partnership of the UDR Partnership (a "Partnership Common Unit"), provided that such Class 1 LTIP Unit has been outstanding for at least two years from the date of grant.

F3 · derivative.underlying: A holder of Partnership Common Units has the right to require the UDR Partnership to redeem all or a portion of the Partnership Common Units held by the holder in exchange for a cash payment based on the market value of the Company's Common Stock at the time of redemption, as defined in the Partnership Agreement (the "Cash Amount"). However, the UDR Partnership's obligation to pay the Cash Amount is subject the prior right of the Company to acquire such Partnership Common Units in exchange for either the Cash Amount or shares of the Company's Common Stock.

F4 · derivative.underlying: The Company, as the general partner of the UDR Partnership, may, in its sole discretion, purchase the Partnership Common Units by paying the limited partner either the Cash Amount or the REIT Share Amount (generally one share of the Company's Common Stock for each Partnership Common Unit), as such terms are defined in the Partnership Agreement. The right to convert the Class 1 LTIP Units into Partnership Common Units and the right to receive the Cash Amount or the REIT Share Amount (in the Company's sole discretion) in exchange for Partnership Common Units do not have expiration dates.

F5 · derivative.underlying: The Class 1 LTIP Units shall vest on the first anniversary of the vesting commencement date, which is January 3, 2024.

SEC source: 0001096906-23-000027 · form4.xml · derivative · entry 2

Fisher Joseph D · CIK 0001691531 · President-CFO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 2,370,062

Underlying: Common Stock · 389,769 shares

Expires 2033-01-03

F1 · security: Represents Class 2 Performance LTIP Units in United Dominion Realty, L.P., a Delaware limited partnership (the "UDR Partnership"). UDR, Inc. (the "Company") is the parent company and sole general partner of the UDR Partnership.

F2 · derivative.exercise_price: Subject to the conditions set forth in the Eleventh Amendment to the Amended and Restated Agreement of Limited Partnership of the UDR Partnership (the "Partnership Agreement"), each Class 2 Performance LTIP Unit may be converted, at the election of the holder, into a Class 2 LTIP Unit at any time (i) on or after when the Class 2 Performance LTIP Unit has vested (as described in footnotes 8, 9, 10, 11, 12 & 13 below) and (ii) before the expiration date of the Class 2 Performance LTIP Unit.

F3 · derivative.exercise_price: Class 2 Performance LTIP Units convert to a number of Class 2 LTIP Units equal to (i) the applicable Performance LTIP Unit Value, which is calculated as the product of (x) the excess (if any) of the REIT Share Value over the Issue Price for the Class 2 Performance Unit and (y) the Conversion Factor, multiplied by (ii) the number of Class 2 Performance LTIP Units being converted, and divided by (iii) the REIT Share Value on the Conversion Date, as such terms are defined in the Partnership Agreement.

F4 · derivative.exercise_price: Subject to the conditions set forth in the Eleventh Amendment to the Partnership Agreement and subject to any vesting conditions specified with respect to each Class 2 LTIP Unit, each Class 2 LTIP Unit may be converted, at the election of the holder, into a unit of limited partnership of the UDR Partnership (a "Partnership Common Unit"), provided that such Class 2 LTIP Unit has been outstanding for at least two years from the date of grant.

F5 · derivative.exercise_price: A holder of Partnership Common Units has the right to require the UDR Partnership to redeem all or a portion of the Partnership Common Units held by the holder in exchange for a cash payment based on the market value of the Company's Common Stock at the time of redemption, as defined in the Partnership Agreement (the "Cash Amount"). However, the UDR Partnership's obligation to pay the Cash Amount is subject the prior right of the Company to acquire such Partnership Common Units in exchange for either the Cash Amount or shares of the Company's Common Stock, as described in footnote 6 below.

F6 · derivative.exercise_price: The Company, as the general partner of the UDR Partnership, may, in its sole discretion, purchase the Partnership Common Units by paying the limited partner either the Cash Amount or the REIT Share Amount (generally one share of the Company's Common Stock for each Partnership Common Unit), as such terms are defined in the Partnership Agreement. The right to convert the Class 2 LTIP Units into Partnership Common Units and the right to receive the Cash Amount or the REIT Share Amount (in the Company's sole discretion) in exchange for Partnership Common Units do not have expiration dates.

F7 · shares: Amount represents the maximum award (including dividends) that could be earned, which is subject to forfeiture when the performance results are determined.

F8 · shares: The Class 2 Performance LTIP Units will vest only to the extent that pre-established performance metrics are met for the applicable performance period, subject to continuing employment. Except as otherwise set forth in the UDR, Inc. 1999 Long-Term Incentive Plan, as amended from time to time, except Section 14.9 thereof, the Partnership Agreement, or as determined by the Compensation Committee of the Company's Board of Directors (the "Committee"), in its sole discretion, vesting of the Class 2 Performance LTIP Units shall cease upon the date of termination for any reason other than in the event of a change of control of the Company, and no unvested Class 2 Performance LTIP Units shall thereafter become vested.

F9 · shares: In the event of a change of control of the Company, the Class 2 Performance LTIP Units will vest only if the holder's employment or other service relationship with the Company is terminated by the Company without cause, or by the holder for good reason, in each case on or within 12 months following the date of a change of control. Further, all restrictions on outstanding awards that have been earned shall lapse upon the Company's termination of the holder's employment without cause or the holder's termination of employment for good reason.

F12 · shares: The vesting of these Class 2 Performance LTIP Units shall be determined as follows: 30 percent shall be based upon the Committee's subjective determination, in its sole discretion, of the executive officer's performance with respect to individual performance objectives; and 70 percent shall be based on the pre-determined financial metrics. These Class 2 Performance LTIP Units will vest upon a determination by the Committee after the completion of the applicable performance period.

F13 · shares: The portion of these Class 2 LTIP Units that vests based upon the achievement of pre-determined financial metrics shall be determined as follows: 35 percent based on an operations index goal; 30 percent based on an FFO as Adjusted per share goal; 15 percent based on a transactions index goal; 10 percent based on a GRESB percentile goal; and 10 percent based on an associate engagement & DEI goal, each over a one-year period.

F2 · derivative.exercise_date: Subject to the conditions set forth in the Eleventh Amendment to the Amended and Restated Agreement of Limited Partnership of the UDR Partnership (the "Partnership Agreement"), each Class 2 Performance LTIP Unit may be converted, at the election of the holder, into a Class 2 LTIP Unit at any time (i) on or after when the Class 2 Performance LTIP Unit has vested (as described in footnotes 8, 9, 10, 11, 12 & 13 below) and (ii) before the expiration date of the Class 2 Performance LTIP Unit.

F3 · derivative.exercise_date: Class 2 Performance LTIP Units convert to a number of Class 2 LTIP Units equal to (i) the applicable Performance LTIP Unit Value, which is calculated as the product of (x) the excess (if any) of the REIT Share Value over the Issue Price for the Class 2 Performance Unit and (y) the Conversion Factor, multiplied by (ii) the number of Class 2 Performance LTIP Units being converted, and divided by (iii) the REIT Share Value on the Conversion Date, as such terms are defined in the Partnership Agreement.

F4 · derivative.exercise_date: Subject to the conditions set forth in the Eleventh Amendment to the Partnership Agreement and subject to any vesting conditions specified with respect to each Class 2 LTIP Unit, each Class 2 LTIP Unit may be converted, at the election of the holder, into a unit of limited partnership of the UDR Partnership (a "Partnership Common Unit"), provided that such Class 2 LTIP Unit has been outstanding for at least two years from the date of grant.

F5 · derivative.exercise_date: A holder of Partnership Common Units has the right to require the UDR Partnership to redeem all or a portion of the Partnership Common Units held by the holder in exchange for a cash payment based on the market value of the Company's Common Stock at the time of redemption, as defined in the Partnership Agreement (the "Cash Amount"). However, the UDR Partnership's obligation to pay the Cash Amount is subject the prior right of the Company to acquire such Partnership Common Units in exchange for either the Cash Amount or shares of the Company's Common Stock, as described in footnote 6 below.

F6 · derivative.exercise_date: The Company, as the general partner of the UDR Partnership, may, in its sole discretion, purchase the Partnership Common Units by paying the limited partner either the Cash Amount or the REIT Share Amount (generally one share of the Company's Common Stock for each Partnership Common Unit), as such terms are defined in the Partnership Agreement. The right to convert the Class 2 LTIP Units into Partnership Common Units and the right to receive the Cash Amount or the REIT Share Amount (in the Company's sole discretion) in exchange for Partnership Common Units do not have expiration dates.

F8 · derivative.exercise_date: The Class 2 Performance LTIP Units will vest only to the extent that pre-established performance metrics are met for the applicable performance period, subject to continuing employment. Except as otherwise set forth in the UDR, Inc. 1999 Long-Term Incentive Plan, as amended from time to time, except Section 14.9 thereof, the Partnership Agreement, or as determined by the Compensation Committee of the Company's Board of Directors (the "Committee"), in its sole discretion, vesting of the Class 2 Performance LTIP Units shall cease upon the date of termination for any reason other than in the event of a change of control of the Company, and no unvested Class 2 Performance LTIP Units shall thereafter become vested.

F9 · derivative.exercise_date: In the event of a change of control of the Company, the Class 2 Performance LTIP Units will vest only if the holder's employment or other service relationship with the Company is terminated by the Company without cause, or by the holder for good reason, in each case on or within 12 months following the date of a change of control. Further, all restrictions on outstanding awards that have been earned shall lapse upon the Company's termination of the holder's employment without cause or the holder's termination of employment for good reason.

F12 · derivative.exercise_date: The vesting of these Class 2 Performance LTIP Units shall be determined as follows: 30 percent shall be based upon the Committee's subjective determination, in its sole discretion, of the executive officer's performance with respect to individual performance objectives; and 70 percent shall be based on the pre-determined financial metrics. These Class 2 Performance LTIP Units will vest upon a determination by the Committee after the completion of the applicable performance period.

F13 · derivative.exercise_date: The portion of these Class 2 LTIP Units that vests based upon the achievement of pre-determined financial metrics shall be determined as follows: 35 percent based on an operations index goal; 30 percent based on an FFO as Adjusted per share goal; 15 percent based on a transactions index goal; 10 percent based on a GRESB percentile goal; and 10 percent based on an associate engagement & DEI goal, each over a one-year period.

F2 · derivative.underlying: Subject to the conditions set forth in the Eleventh Amendment to the Amended and Restated Agreement of Limited Partnership of the UDR Partnership (the "Partnership Agreement"), each Class 2 Performance LTIP Unit may be converted, at the election of the holder, into a Class 2 LTIP Unit at any time (i) on or after when the Class 2 Performance LTIP Unit has vested (as described in footnotes 8, 9, 10, 11, 12 & 13 below) and (ii) before the expiration date of the Class 2 Performance LTIP Unit.

F3 · derivative.underlying: Class 2 Performance LTIP Units convert to a number of Class 2 LTIP Units equal to (i) the applicable Performance LTIP Unit Value, which is calculated as the product of (x) the excess (if any) of the REIT Share Value over the Issue Price for the Class 2 Performance Unit and (y) the Conversion Factor, multiplied by (ii) the number of Class 2 Performance LTIP Units being converted, and divided by (iii) the REIT Share Value on the Conversion Date, as such terms are defined in the Partnership Agreement.

F4 · derivative.underlying: Subject to the conditions set forth in the Eleventh Amendment to the Partnership Agreement and subject to any vesting conditions specified with respect to each Class 2 LTIP Unit, each Class 2 LTIP Unit may be converted, at the election of the holder, into a unit of limited partnership of the UDR Partnership (a "Partnership Common Unit"), provided that such Class 2 LTIP Unit has been outstanding for at least two years from the date of grant.

F5 · derivative.underlying: A holder of Partnership Common Units has the right to require the UDR Partnership to redeem all or a portion of the Partnership Common Units held by the holder in exchange for a cash payment based on the market value of the Company's Common Stock at the time of redemption, as defined in the Partnership Agreement (the "Cash Amount"). However, the UDR Partnership's obligation to pay the Cash Amount is subject the prior right of the Company to acquire such Partnership Common Units in exchange for either the Cash Amount or shares of the Company's Common Stock, as described in footnote 6 below.

F6 · derivative.underlying: The Company, as the general partner of the UDR Partnership, may, in its sole discretion, purchase the Partnership Common Units by paying the limited partner either the Cash Amount or the REIT Share Amount (generally one share of the Company's Common Stock for each Partnership Common Unit), as such terms are defined in the Partnership Agreement. The right to convert the Class 2 LTIP Units into Partnership Common Units and the right to receive the Cash Amount or the REIT Share Amount (in the Company's sole discretion) in exchange for Partnership Common Units do not have expiration dates.

F8 · derivative.underlying: The Class 2 Performance LTIP Units will vest only to the extent that pre-established performance metrics are met for the applicable performance period, subject to continuing employment. Except as otherwise set forth in the UDR, Inc. 1999 Long-Term Incentive Plan, as amended from time to time, except Section 14.9 thereof, the Partnership Agreement, or as determined by the Compensation Committee of the Company's Board of Directors (the "Committee"), in its sole discretion, vesting of the Class 2 Performance LTIP Units shall cease upon the date of termination for any reason other than in the event of a change of control of the Company, and no unvested Class 2 Performance LTIP Units shall thereafter become vested.

F9 · derivative.underlying: In the event of a change of control of the Company, the Class 2 Performance LTIP Units will vest only if the holder's employment or other service relationship with the Company is terminated by the Company without cause, or by the holder for good reason, in each case on or within 12 months following the date of a change of control. Further, all restrictions on outstanding awards that have been earned shall lapse upon the Company's termination of the holder's employment without cause or the holder's termination of employment for good reason.

F12 · derivative.underlying: The vesting of these Class 2 Performance LTIP Units shall be determined as follows: 30 percent shall be based upon the Committee's subjective determination, in its sole discretion, of the executive officer's performance with respect to individual performance objectives; and 70 percent shall be based on the pre-determined financial metrics. These Class 2 Performance LTIP Units will vest upon a determination by the Committee after the completion of the applicable performance period.

F13 · derivative.underlying: The portion of these Class 2 LTIP Units that vests based upon the achievement of pre-determined financial metrics shall be determined as follows: 35 percent based on an operations index goal; 30 percent based on an FFO as Adjusted per share goal; 15 percent based on a transactions index goal; 10 percent based on a GRESB percentile goal; and 10 percent based on an associate engagement & DEI goal, each over a one-year period.

SEC source: 0001096906-23-000027 · form4.xml · derivative · entry 1

Fisher Joseph D · CIK 0001691531 · President-CFO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,980,293

Underlying: Common Stock · 523,752 shares

Expires 2033-01-03

F1 · security: Represents Class 2 Performance LTIP Units in United Dominion Realty, L.P., a Delaware limited partnership (the "UDR Partnership"). UDR, Inc. (the "Company") is the parent company and sole general partner of the UDR Partnership.

F2 · derivative.exercise_price: Subject to the conditions set forth in the Eleventh Amendment to the Amended and Restated Agreement of Limited Partnership of the UDR Partnership (the "Partnership Agreement"), each Class 2 Performance LTIP Unit may be converted, at the election of the holder, into a Class 2 LTIP Unit at any time (i) on or after when the Class 2 Performance LTIP Unit has vested (as described in footnotes 8, 9, 10, 11, 12 & 13 below) and (ii) before the expiration date of the Class 2 Performance LTIP Unit.

F3 · derivative.exercise_price: Class 2 Performance LTIP Units convert to a number of Class 2 LTIP Units equal to (i) the applicable Performance LTIP Unit Value, which is calculated as the product of (x) the excess (if any) of the REIT Share Value over the Issue Price for the Class 2 Performance Unit and (y) the Conversion Factor, multiplied by (ii) the number of Class 2 Performance LTIP Units being converted, and divided by (iii) the REIT Share Value on the Conversion Date, as such terms are defined in the Partnership Agreement.

F4 · derivative.exercise_price: Subject to the conditions set forth in the Eleventh Amendment to the Partnership Agreement and subject to any vesting conditions specified with respect to each Class 2 LTIP Unit, each Class 2 LTIP Unit may be converted, at the election of the holder, into a unit of limited partnership of the UDR Partnership (a "Partnership Common Unit"), provided that such Class 2 LTIP Unit has been outstanding for at least two years from the date of grant.

F5 · derivative.exercise_price: A holder of Partnership Common Units has the right to require the UDR Partnership to redeem all or a portion of the Partnership Common Units held by the holder in exchange for a cash payment based on the market value of the Company's Common Stock at the time of redemption, as defined in the Partnership Agreement (the "Cash Amount"). However, the UDR Partnership's obligation to pay the Cash Amount is subject the prior right of the Company to acquire such Partnership Common Units in exchange for either the Cash Amount or shares of the Company's Common Stock, as described in footnote 6 below.

F6 · derivative.exercise_price: The Company, as the general partner of the UDR Partnership, may, in its sole discretion, purchase the Partnership Common Units by paying the limited partner either the Cash Amount or the REIT Share Amount (generally one share of the Company's Common Stock for each Partnership Common Unit), as such terms are defined in the Partnership Agreement. The right to convert the Class 2 LTIP Units into Partnership Common Units and the right to receive the Cash Amount or the REIT Share Amount (in the Company's sole discretion) in exchange for Partnership Common Units do not have expiration dates.

F7 · shares: Amount represents the maximum award (including dividends) that could be earned, which is subject to forfeiture when the performance results are determined.

F8 · shares: The Class 2 Performance LTIP Units will vest only to the extent that pre-established performance metrics are met for the applicable performance period, subject to continuing employment. Except as otherwise set forth in the UDR, Inc. 1999 Long-Term Incentive Plan, as amended from time to time, except Section 14.9 thereof, the Partnership Agreement, or as determined by the Compensation Committee of the Company's Board of Directors (the "Committee"), in its sole discretion, vesting of the Class 2 Performance LTIP Units shall cease upon the date of termination for any reason other than in the event of a change of control of the Company, and no unvested Class 2 Performance LTIP Units shall thereafter become vested.

F9 · shares: In the event of a change of control of the Company, the Class 2 Performance LTIP Units will vest only if the holder's employment or other service relationship with the Company is terminated by the Company without cause, or by the holder for good reason, in each case on or within 12 months following the date of a change of control. Further, all restrictions on outstanding awards that have been earned shall lapse upon the Company's termination of the holder's employment without cause or the holder's termination of employment for good reason.

F10 · shares: The vesting of these Class 2 Performance LTIP Units shall be determined as follows: 35 percent shall be based on a goal measured by the Company's relative total shareholder return ("TSR") as compared to an apartment peer group over a three-year cumulative performance period (the "3-Year Relative Apartment Peer TSR Metric"); 30 percent shall be based on the achievement of a pre-determined FFO as Adjusted goal over a one-year period (the "1-Year FFO as Adjusted Metric"); 20 percent shall be determined based on a goal measured by the Company's relative TSR as compared to a REIT peer group over a three-year cumulative performance period (the "3-Year Relative REIT TSR Metric"); and 15 percent shall be based on a goal measured by the Company's relative FFO as Adjusted growth rate as compared to an apartment peer group over a three-year cumulative performance period (the "3-Year Relative FFO as Adjusted Metric").

F11 · shares: The portions of these Class 2 Performance LTIP Units based upon the 3-Year Relative Apartment Peer TSR Metric, the 3-Year Relative REIT TSR Metric and the 3-Year Relative FFO as Adjusted Metric will vest on the date the Committee determines performance (the "Determination Date"). The portion of the Class 2 LTIP Units based upon the 1-Year FFO as Adjusted Metric will vest 50 percent on the Determination Date, and 50 percent on the one year anniversary thereof.

F2 · derivative.exercise_date: Subject to the conditions set forth in the Eleventh Amendment to the Amended and Restated Agreement of Limited Partnership of the UDR Partnership (the "Partnership Agreement"), each Class 2 Performance LTIP Unit may be converted, at the election of the holder, into a Class 2 LTIP Unit at any time (i) on or after when the Class 2 Performance LTIP Unit has vested (as described in footnotes 8, 9, 10, 11, 12 & 13 below) and (ii) before the expiration date of the Class 2 Performance LTIP Unit.

F3 · derivative.exercise_date: Class 2 Performance LTIP Units convert to a number of Class 2 LTIP Units equal to (i) the applicable Performance LTIP Unit Value, which is calculated as the product of (x) the excess (if any) of the REIT Share Value over the Issue Price for the Class 2 Performance Unit and (y) the Conversion Factor, multiplied by (ii) the number of Class 2 Performance LTIP Units being converted, and divided by (iii) the REIT Share Value on the Conversion Date, as such terms are defined in the Partnership Agreement.

F4 · derivative.exercise_date: Subject to the conditions set forth in the Eleventh Amendment to the Partnership Agreement and subject to any vesting conditions specified with respect to each Class 2 LTIP Unit, each Class 2 LTIP Unit may be converted, at the election of the holder, into a unit of limited partnership of the UDR Partnership (a "Partnership Common Unit"), provided that such Class 2 LTIP Unit has been outstanding for at least two years from the date of grant.

F5 · derivative.exercise_date: A holder of Partnership Common Units has the right to require the UDR Partnership to redeem all or a portion of the Partnership Common Units held by the holder in exchange for a cash payment based on the market value of the Company's Common Stock at the time of redemption, as defined in the Partnership Agreement (the "Cash Amount"). However, the UDR Partnership's obligation to pay the Cash Amount is subject the prior right of the Company to acquire such Partnership Common Units in exchange for either the Cash Amount or shares of the Company's Common Stock, as described in footnote 6 below.

F6 · derivative.exercise_date: The Company, as the general partner of the UDR Partnership, may, in its sole discretion, purchase the Partnership Common Units by paying the limited partner either the Cash Amount or the REIT Share Amount (generally one share of the Company's Common Stock for each Partnership Common Unit), as such terms are defined in the Partnership Agreement. The right to convert the Class 2 LTIP Units into Partnership Common Units and the right to receive the Cash Amount or the REIT Share Amount (in the Company's sole discretion) in exchange for Partnership Common Units do not have expiration dates.

F8 · derivative.exercise_date: The Class 2 Performance LTIP Units will vest only to the extent that pre-established performance metrics are met for the applicable performance period, subject to continuing employment. Except as otherwise set forth in the UDR, Inc. 1999 Long-Term Incentive Plan, as amended from time to time, except Section 14.9 thereof, the Partnership Agreement, or as determined by the Compensation Committee of the Company's Board of Directors (the "Committee"), in its sole discretion, vesting of the Class 2 Performance LTIP Units shall cease upon the date of termination for any reason other than in the event of a change of control of the Company, and no unvested Class 2 Performance LTIP Units shall thereafter become vested.

F9 · derivative.exercise_date: In the event of a change of control of the Company, the Class 2 Performance LTIP Units will vest only if the holder's employment or other service relationship with the Company is terminated by the Company without cause, or by the holder for good reason, in each case on or within 12 months following the date of a change of control. Further, all restrictions on outstanding awards that have been earned shall lapse upon the Company's termination of the holder's employment without cause or the holder's termination of employment for good reason.

F10 · derivative.exercise_date: The vesting of these Class 2 Performance LTIP Units shall be determined as follows: 35 percent shall be based on a goal measured by the Company's relative total shareholder return ("TSR") as compared to an apartment peer group over a three-year cumulative performance period (the "3-Year Relative Apartment Peer TSR Metric"); 30 percent shall be based on the achievement of a pre-determined FFO as Adjusted goal over a one-year period (the "1-Year FFO as Adjusted Metric"); 20 percent shall be determined based on a goal measured by the Company's relative TSR as compared to a REIT peer group over a three-year cumulative performance period (the "3-Year Relative REIT TSR Metric"); and 15 percent shall be based on a goal measured by the Company's relative FFO as Adjusted growth rate as compared to an apartment peer group over a three-year cumulative performance period (the "3-Year Relative FFO as Adjusted Metric").

F11 · derivative.exercise_date: The portions of these Class 2 Performance LTIP Units based upon the 3-Year Relative Apartment Peer TSR Metric, the 3-Year Relative REIT TSR Metric and the 3-Year Relative FFO as Adjusted Metric will vest on the date the Committee determines performance (the "Determination Date"). The portion of the Class 2 LTIP Units based upon the 1-Year FFO as Adjusted Metric will vest 50 percent on the Determination Date, and 50 percent on the one year anniversary thereof.

F2 · derivative.underlying: Subject to the conditions set forth in the Eleventh Amendment to the Amended and Restated Agreement of Limited Partnership of the UDR Partnership (the "Partnership Agreement"), each Class 2 Performance LTIP Unit may be converted, at the election of the holder, into a Class 2 LTIP Unit at any time (i) on or after when the Class 2 Performance LTIP Unit has vested (as described in footnotes 8, 9, 10, 11, 12 & 13 below) and (ii) before the expiration date of the Class 2 Performance LTIP Unit.

F3 · derivative.underlying: Class 2 Performance LTIP Units convert to a number of Class 2 LTIP Units equal to (i) the applicable Performance LTIP Unit Value, which is calculated as the product of (x) the excess (if any) of the REIT Share Value over the Issue Price for the Class 2 Performance Unit and (y) the Conversion Factor, multiplied by (ii) the number of Class 2 Performance LTIP Units being converted, and divided by (iii) the REIT Share Value on the Conversion Date, as such terms are defined in the Partnership Agreement.

F4 · derivative.underlying: Subject to the conditions set forth in the Eleventh Amendment to the Partnership Agreement and subject to any vesting conditions specified with respect to each Class 2 LTIP Unit, each Class 2 LTIP Unit may be converted, at the election of the holder, into a unit of limited partnership of the UDR Partnership (a "Partnership Common Unit"), provided that such Class 2 LTIP Unit has been outstanding for at least two years from the date of grant.

F5 · derivative.underlying: A holder of Partnership Common Units has the right to require the UDR Partnership to redeem all or a portion of the Partnership Common Units held by the holder in exchange for a cash payment based on the market value of the Company's Common Stock at the time of redemption, as defined in the Partnership Agreement (the "Cash Amount"). However, the UDR Partnership's obligation to pay the Cash Amount is subject the prior right of the Company to acquire such Partnership Common Units in exchange for either the Cash Amount or shares of the Company's Common Stock, as described in footnote 6 below.

F6 · derivative.underlying: The Company, as the general partner of the UDR Partnership, may, in its sole discretion, purchase the Partnership Common Units by paying the limited partner either the Cash Amount or the REIT Share Amount (generally one share of the Company's Common Stock for each Partnership Common Unit), as such terms are defined in the Partnership Agreement. The right to convert the Class 2 LTIP Units into Partnership Common Units and the right to receive the Cash Amount or the REIT Share Amount (in the Company's sole discretion) in exchange for Partnership Common Units do not have expiration dates.

F8 · derivative.underlying: The Class 2 Performance LTIP Units will vest only to the extent that pre-established performance metrics are met for the applicable performance period, subject to continuing employment. Except as otherwise set forth in the UDR, Inc. 1999 Long-Term Incentive Plan, as amended from time to time, except Section 14.9 thereof, the Partnership Agreement, or as determined by the Compensation Committee of the Company's Board of Directors (the "Committee"), in its sole discretion, vesting of the Class 2 Performance LTIP Units shall cease upon the date of termination for any reason other than in the event of a change of control of the Company, and no unvested Class 2 Performance LTIP Units shall thereafter become vested.

F9 · derivative.underlying: In the event of a change of control of the Company, the Class 2 Performance LTIP Units will vest only if the holder's employment or other service relationship with the Company is terminated by the Company without cause, or by the holder for good reason, in each case on or within 12 months following the date of a change of control. Further, all restrictions on outstanding awards that have been earned shall lapse upon the Company's termination of the holder's employment without cause or the holder's termination of employment for good reason.

F10 · derivative.underlying: The vesting of these Class 2 Performance LTIP Units shall be determined as follows: 35 percent shall be based on a goal measured by the Company's relative total shareholder return ("TSR") as compared to an apartment peer group over a three-year cumulative performance period (the "3-Year Relative Apartment Peer TSR Metric"); 30 percent shall be based on the achievement of a pre-determined FFO as Adjusted goal over a one-year period (the "1-Year FFO as Adjusted Metric"); 20 percent shall be determined based on a goal measured by the Company's relative TSR as compared to a REIT peer group over a three-year cumulative performance period (the "3-Year Relative REIT TSR Metric"); and 15 percent shall be based on a goal measured by the Company's relative FFO as Adjusted growth rate as compared to an apartment peer group over a three-year cumulative performance period (the "3-Year Relative FFO as Adjusted Metric").

F11 · derivative.underlying: The portions of these Class 2 Performance LTIP Units based upon the 3-Year Relative Apartment Peer TSR Metric, the 3-Year Relative REIT TSR Metric and the 3-Year Relative FFO as Adjusted Metric will vest on the date the Committee determines performance (the "Determination Date"). The portion of the Class 2 LTIP Units based upon the 1-Year FFO as Adjusted Metric will vest 50 percent on the Determination Date, and 50 percent on the one year anniversary thereof.

SEC source: 0001096906-23-000028 · form4.xml · derivative · entry 3

Lacy Michael D · CIK 0001827142 · SVP-Property Operations

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 172,315

Underlying: Common Stock · 38,708 shares

Expires not disclosed

F2 · security: Represents Class 2 LTIP Units (the "Class 2 LTIP Units") in United Dominion Realty, L.P., a Delaware limited partnership (the "UDR Partnership"). UDR, Inc. (the "Company") is the parent company and sole general partner of the UDR Partnership.

F3 · derivative.exercise_price: Subject to the conditions set forth in the Eleventh Amendment to the Amended and Restated Agreement of Limited Partnership of the UDR Partnership (the "Partnership Agreement") and subject to the vesting conditions specified with respect to each Class 2 LTIP Unit, each Class 2 LTIP Unit may be converted into a unit of limited partnership of the UDR Partnership (a "Partnership Common Unit"), provided that such Class 2 LTIP Unit has been outstanding for at least two years from the date of grant.

F4 · derivative.exercise_price: A holder of Partnership Common Units has the right to require the UDR Partnership to redeem all or a portion of the Partnership Common Units held by the holder in exchange for a cash payment based on the market value of the Company's Common Stock at the time of redemption, as defined in the Partnership Agreement (the "Cash Amount"). However, the UDR Partnership's obligation to pay the Cash Amount is subject the prior right of the Company to acquire such Partnership Common Units in exchange for either the Cash Amount or shares of the Company's Common Stock.

F5 · derivative.exercise_price: The Company, as the general partner of the UDR Partnership, may, in its sole discretion, purchase the Partnership Common Units by paying the limited partner either the Cash Amount or the REIT Share Amount (generally one share of the Company's Common Stock for each Partnership Common Unit), as such terms are defined in the Partnership Agreement. The right to convert the Class 2 LTIP Units into Partnership Common Units and the right to receive the Cash Amount or the REIT Share Amount (in the Company's sole discretion) in exchange for Partnership Common Units do not have expiration dates.

F6 · shares: The Class 2 LTIP Units will vest only to the extent that pre-established performance metrics are met for the applicable performance period, subject to continuing employment. Except as otherwise set forth in the UDR, Inc. 1999 Long-Term Incentive Plan, as amended from time to time, except Section 14.9 thereof, the Partnership Agreement, or as determined by the Compensation Committee of the Company's Board of Directors (the "Committee"), in its sole discretion, vesting of the Class 2 LTIP Units shall cease upon the date of termination for any reason other than in the event of a change of control of the Company, and no unvested Class 2 LTIP Units shall thereafter become vested.

F7 · shares: In the event of a change of control of the Company, the Class 2 LTIP Units will vest only if the holder's employment or other service relationship with the Company is terminated by the Company without cause, or by the holder for good reason, in each case on or within 12 months following the date of a change of control. Further, all restrictions on outstanding awards that have been earned shall lapse upon the Company's termination of the holder's employment without cause or the holder's termination of employment for good reason.

F10 · shares: Amount represents the maximum award (including dividends) that could be earned, which is subject to forfeiture when the performance results are determined.

F11 · shares: The vesting of these Class 2 LTIP Units shall be determined as follows: 30 percent shall be based upon the Committee's subjective determination, in its sole discretion, of the executive officer's performance with respect to individual performance objectives; and 70 percent shall be based on pre-determined financial metrics. These Class 2 LTIP Units will vest upon a determination by the Committee after the completion of the applicable performance period.

F12 · shares: The portion of these Class 2 LTIP Units that vests based upon the achievement of pre-determined financial metrics shall be determined as follows: 40 percent based on an operations index goal; 30 percent based on an FFO as Adjusted per share goal; 10 percent based on a transactions index goal; 10 percent based on a GRESB percentile goal; and 10 percent based on an associate engagement & DEI goal, each over a one-year period.

F3 · derivative.exercise_date: Subject to the conditions set forth in the Eleventh Amendment to the Amended and Restated Agreement of Limited Partnership of the UDR Partnership (the "Partnership Agreement") and subject to the vesting conditions specified with respect to each Class 2 LTIP Unit, each Class 2 LTIP Unit may be converted into a unit of limited partnership of the UDR Partnership (a "Partnership Common Unit"), provided that such Class 2 LTIP Unit has been outstanding for at least two years from the date of grant.

F4 · derivative.exercise_date: A holder of Partnership Common Units has the right to require the UDR Partnership to redeem all or a portion of the Partnership Common Units held by the holder in exchange for a cash payment based on the market value of the Company's Common Stock at the time of redemption, as defined in the Partnership Agreement (the "Cash Amount"). However, the UDR Partnership's obligation to pay the Cash Amount is subject the prior right of the Company to acquire such Partnership Common Units in exchange for either the Cash Amount or shares of the Company's Common Stock.

F5 · derivative.exercise_date: The Company, as the general partner of the UDR Partnership, may, in its sole discretion, purchase the Partnership Common Units by paying the limited partner either the Cash Amount or the REIT Share Amount (generally one share of the Company's Common Stock for each Partnership Common Unit), as such terms are defined in the Partnership Agreement. The right to convert the Class 2 LTIP Units into Partnership Common Units and the right to receive the Cash Amount or the REIT Share Amount (in the Company's sole discretion) in exchange for Partnership Common Units do not have expiration dates.

F6 · derivative.exercise_date: The Class 2 LTIP Units will vest only to the extent that pre-established performance metrics are met for the applicable performance period, subject to continuing employment. Except as otherwise set forth in the UDR, Inc. 1999 Long-Term Incentive Plan, as amended from time to time, except Section 14.9 thereof, the Partnership Agreement, or as determined by the Compensation Committee of the Company's Board of Directors (the "Committee"), in its sole discretion, vesting of the Class 2 LTIP Units shall cease upon the date of termination for any reason other than in the event of a change of control of the Company, and no unvested Class 2 LTIP Units shall thereafter become vested.

F7 · derivative.exercise_date: In the event of a change of control of the Company, the Class 2 LTIP Units will vest only if the holder's employment or other service relationship with the Company is terminated by the Company without cause, or by the holder for good reason, in each case on or within 12 months following the date of a change of control. Further, all restrictions on outstanding awards that have been earned shall lapse upon the Company's termination of the holder's employment without cause or the holder's termination of employment for good reason.

F11 · derivative.exercise_date: The vesting of these Class 2 LTIP Units shall be determined as follows: 30 percent shall be based upon the Committee's subjective determination, in its sole discretion, of the executive officer's performance with respect to individual performance objectives; and 70 percent shall be based on pre-determined financial metrics. These Class 2 LTIP Units will vest upon a determination by the Committee after the completion of the applicable performance period.

F12 · derivative.exercise_date: The portion of these Class 2 LTIP Units that vests based upon the achievement of pre-determined financial metrics shall be determined as follows: 40 percent based on an operations index goal; 30 percent based on an FFO as Adjusted per share goal; 10 percent based on a transactions index goal; 10 percent based on a GRESB percentile goal; and 10 percent based on an associate engagement & DEI goal, each over a one-year period.

F5 · derivative.expiration_date: The Company, as the general partner of the UDR Partnership, may, in its sole discretion, purchase the Partnership Common Units by paying the limited partner either the Cash Amount or the REIT Share Amount (generally one share of the Company's Common Stock for each Partnership Common Unit), as such terms are defined in the Partnership Agreement. The right to convert the Class 2 LTIP Units into Partnership Common Units and the right to receive the Cash Amount or the REIT Share Amount (in the Company's sole discretion) in exchange for Partnership Common Units do not have expiration dates.

F3 · derivative.underlying: Subject to the conditions set forth in the Eleventh Amendment to the Amended and Restated Agreement of Limited Partnership of the UDR Partnership (the "Partnership Agreement") and subject to the vesting conditions specified with respect to each Class 2 LTIP Unit, each Class 2 LTIP Unit may be converted into a unit of limited partnership of the UDR Partnership (a "Partnership Common Unit"), provided that such Class 2 LTIP Unit has been outstanding for at least two years from the date of grant.

F4 · derivative.underlying: A holder of Partnership Common Units has the right to require the UDR Partnership to redeem all or a portion of the Partnership Common Units held by the holder in exchange for a cash payment based on the market value of the Company's Common Stock at the time of redemption, as defined in the Partnership Agreement (the "Cash Amount"). However, the UDR Partnership's obligation to pay the Cash Amount is subject the prior right of the Company to acquire such Partnership Common Units in exchange for either the Cash Amount or shares of the Company's Common Stock.

F5 · derivative.underlying: The Company, as the general partner of the UDR Partnership, may, in its sole discretion, purchase the Partnership Common Units by paying the limited partner either the Cash Amount or the REIT Share Amount (generally one share of the Company's Common Stock for each Partnership Common Unit), as such terms are defined in the Partnership Agreement. The right to convert the Class 2 LTIP Units into Partnership Common Units and the right to receive the Cash Amount or the REIT Share Amount (in the Company's sole discretion) in exchange for Partnership Common Units do not have expiration dates.

F6 · derivative.underlying: The Class 2 LTIP Units will vest only to the extent that pre-established performance metrics are met for the applicable performance period, subject to continuing employment. Except as otherwise set forth in the UDR, Inc. 1999 Long-Term Incentive Plan, as amended from time to time, except Section 14.9 thereof, the Partnership Agreement, or as determined by the Compensation Committee of the Company's Board of Directors (the "Committee"), in its sole discretion, vesting of the Class 2 LTIP Units shall cease upon the date of termination for any reason other than in the event of a change of control of the Company, and no unvested Class 2 LTIP Units shall thereafter become vested.

F7 · derivative.underlying: In the event of a change of control of the Company, the Class 2 LTIP Units will vest only if the holder's employment or other service relationship with the Company is terminated by the Company without cause, or by the holder for good reason, in each case on or within 12 months following the date of a change of control. Further, all restrictions on outstanding awards that have been earned shall lapse upon the Company's termination of the holder's employment without cause or the holder's termination of employment for good reason.

F11 · derivative.underlying: The vesting of these Class 2 LTIP Units shall be determined as follows: 30 percent shall be based upon the Committee's subjective determination, in its sole discretion, of the executive officer's performance with respect to individual performance objectives; and 70 percent shall be based on pre-determined financial metrics. These Class 2 LTIP Units will vest upon a determination by the Committee after the completion of the applicable performance period.

F12 · derivative.underlying: The portion of these Class 2 LTIP Units that vests based upon the achievement of pre-determined financial metrics shall be determined as follows: 40 percent based on an operations index goal; 30 percent based on an FFO as Adjusted per share goal; 10 percent based on a transactions index goal; 10 percent based on a GRESB percentile goal; and 10 percent based on an associate engagement & DEI goal, each over a one-year period.

SEC source: 0001096906-23-000028 · form4.xml · derivative · entry 2

Lacy Michael D · CIK 0001827142 · SVP-Property Operations

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 133,607

Underlying: Common Stock · 75,088 shares

Expires not disclosed

F2 · security: Represents Class 2 LTIP Units (the "Class 2 LTIP Units") in United Dominion Realty, L.P., a Delaware limited partnership (the "UDR Partnership"). UDR, Inc. (the "Company") is the parent company and sole general partner of the UDR Partnership.

F3 · derivative.exercise_price: Subject to the conditions set forth in the Eleventh Amendment to the Amended and Restated Agreement of Limited Partnership of the UDR Partnership (the "Partnership Agreement") and subject to the vesting conditions specified with respect to each Class 2 LTIP Unit, each Class 2 LTIP Unit may be converted into a unit of limited partnership of the UDR Partnership (a "Partnership Common Unit"), provided that such Class 2 LTIP Unit has been outstanding for at least two years from the date of grant.

F4 · derivative.exercise_price: A holder of Partnership Common Units has the right to require the UDR Partnership to redeem all or a portion of the Partnership Common Units held by the holder in exchange for a cash payment based on the market value of the Company's Common Stock at the time of redemption, as defined in the Partnership Agreement (the "Cash Amount"). However, the UDR Partnership's obligation to pay the Cash Amount is subject the prior right of the Company to acquire such Partnership Common Units in exchange for either the Cash Amount or shares of the Company's Common Stock.

F5 · derivative.exercise_price: The Company, as the general partner of the UDR Partnership, may, in its sole discretion, purchase the Partnership Common Units by paying the limited partner either the Cash Amount or the REIT Share Amount (generally one share of the Company's Common Stock for each Partnership Common Unit), as such terms are defined in the Partnership Agreement. The right to convert the Class 2 LTIP Units into Partnership Common Units and the right to receive the Cash Amount or the REIT Share Amount (in the Company's sole discretion) in exchange for Partnership Common Units do not have expiration dates.

F6 · shares: The Class 2 LTIP Units will vest only to the extent that pre-established performance metrics are met for the applicable performance period, subject to continuing employment. Except as otherwise set forth in the UDR, Inc. 1999 Long-Term Incentive Plan, as amended from time to time, except Section 14.9 thereof, the Partnership Agreement, or as determined by the Compensation Committee of the Company's Board of Directors (the "Committee"), in its sole discretion, vesting of the Class 2 LTIP Units shall cease upon the date of termination for any reason other than in the event of a change of control of the Company, and no unvested Class 2 LTIP Units shall thereafter become vested.

F7 · shares: In the event of a change of control of the Company, the Class 2 LTIP Units will vest only if the holder's employment or other service relationship with the Company is terminated by the Company without cause, or by the holder for good reason, in each case on or within 12 months following the date of a change of control. Further, all restrictions on outstanding awards that have been earned shall lapse upon the Company's termination of the holder's employment without cause or the holder's termination of employment for good reason.

F8 · shares: The vesting of these Class 2 LTIP Units shall be determined as follows: 35 percent shall be based on a goal measured by the Company's relative total shareholder return ("TSR") as compared to an apartment peer group over a three-year cumulative performance period (the "3-Year Relative Apartment Peer TSR Metric"); 30 percent shall be based on the achievement of a pre-determined FFO as Adjusted goal over a one-year period (the "1-Year FFO as Adjusted Metric"); 20 percent shall be determined based on a goal measured by the Company's relative TSR as compared to a REIT peer group over a three-year cumulative performance period (the "3-Year Relative REIT TSR Metric"); and 15 percent shall be based on a goal measured by the Company's relative FFO as Adjusted growth rate as compared to an apartment peer group over a three-year cumulative performance period (the "3-Year Relative FFO as Adjusted Metric").

F9 · shares: The portions of these Class 2 LTIP Units based upon the 3-Year Relative Apartment Peer TSR Metric, the 3-Year Relative REIT TSR Metric and the 3-Year Relative FFO as Adjusted Metric will vest on the date the Committee determines performance (the "Determination Date"). The portion of these Class 2 LTIP Units based upon the 1-Year FFO as Adjusted Metric will vest 50 percent on the Determination Date, and 50 percent on the one year anniversary thereof.

F10 · shares: Amount represents the maximum award (including dividends) that could be earned, which is subject to forfeiture when the performance results are determined.

F3 · derivative.exercise_date: Subject to the conditions set forth in the Eleventh Amendment to the Amended and Restated Agreement of Limited Partnership of the UDR Partnership (the "Partnership Agreement") and subject to the vesting conditions specified with respect to each Class 2 LTIP Unit, each Class 2 LTIP Unit may be converted into a unit of limited partnership of the UDR Partnership (a "Partnership Common Unit"), provided that such Class 2 LTIP Unit has been outstanding for at least two years from the date of grant.

F4 · derivative.exercise_date: A holder of Partnership Common Units has the right to require the UDR Partnership to redeem all or a portion of the Partnership Common Units held by the holder in exchange for a cash payment based on the market value of the Company's Common Stock at the time of redemption, as defined in the Partnership Agreement (the "Cash Amount"). However, the UDR Partnership's obligation to pay the Cash Amount is subject the prior right of the Company to acquire such Partnership Common Units in exchange for either the Cash Amount or shares of the Company's Common Stock.

F5 · derivative.exercise_date: The Company, as the general partner of the UDR Partnership, may, in its sole discretion, purchase the Partnership Common Units by paying the limited partner either the Cash Amount or the REIT Share Amount (generally one share of the Company's Common Stock for each Partnership Common Unit), as such terms are defined in the Partnership Agreement. The right to convert the Class 2 LTIP Units into Partnership Common Units and the right to receive the Cash Amount or the REIT Share Amount (in the Company's sole discretion) in exchange for Partnership Common Units do not have expiration dates.

F6 · derivative.exercise_date: The Class 2 LTIP Units will vest only to the extent that pre-established performance metrics are met for the applicable performance period, subject to continuing employment. Except as otherwise set forth in the UDR, Inc. 1999 Long-Term Incentive Plan, as amended from time to time, except Section 14.9 thereof, the Partnership Agreement, or as determined by the Compensation Committee of the Company's Board of Directors (the "Committee"), in its sole discretion, vesting of the Class 2 LTIP Units shall cease upon the date of termination for any reason other than in the event of a change of control of the Company, and no unvested Class 2 LTIP Units shall thereafter become vested.

F7 · derivative.exercise_date: In the event of a change of control of the Company, the Class 2 LTIP Units will vest only if the holder's employment or other service relationship with the Company is terminated by the Company without cause, or by the holder for good reason, in each case on or within 12 months following the date of a change of control. Further, all restrictions on outstanding awards that have been earned shall lapse upon the Company's termination of the holder's employment without cause or the holder's termination of employment for good reason.

F8 · derivative.exercise_date: The vesting of these Class 2 LTIP Units shall be determined as follows: 35 percent shall be based on a goal measured by the Company's relative total shareholder return ("TSR") as compared to an apartment peer group over a three-year cumulative performance period (the "3-Year Relative Apartment Peer TSR Metric"); 30 percent shall be based on the achievement of a pre-determined FFO as Adjusted goal over a one-year period (the "1-Year FFO as Adjusted Metric"); 20 percent shall be determined based on a goal measured by the Company's relative TSR as compared to a REIT peer group over a three-year cumulative performance period (the "3-Year Relative REIT TSR Metric"); and 15 percent shall be based on a goal measured by the Company's relative FFO as Adjusted growth rate as compared to an apartment peer group over a three-year cumulative performance period (the "3-Year Relative FFO as Adjusted Metric").

F9 · derivative.exercise_date: The portions of these Class 2 LTIP Units based upon the 3-Year Relative Apartment Peer TSR Metric, the 3-Year Relative REIT TSR Metric and the 3-Year Relative FFO as Adjusted Metric will vest on the date the Committee determines performance (the "Determination Date"). The portion of these Class 2 LTIP Units based upon the 1-Year FFO as Adjusted Metric will vest 50 percent on the Determination Date, and 50 percent on the one year anniversary thereof.

F5 · derivative.expiration_date: The Company, as the general partner of the UDR Partnership, may, in its sole discretion, purchase the Partnership Common Units by paying the limited partner either the Cash Amount or the REIT Share Amount (generally one share of the Company's Common Stock for each Partnership Common Unit), as such terms are defined in the Partnership Agreement. The right to convert the Class 2 LTIP Units into Partnership Common Units and the right to receive the Cash Amount or the REIT Share Amount (in the Company's sole discretion) in exchange for Partnership Common Units do not have expiration dates.

F3 · derivative.underlying: Subject to the conditions set forth in the Eleventh Amendment to the Amended and Restated Agreement of Limited Partnership of the UDR Partnership (the "Partnership Agreement") and subject to the vesting conditions specified with respect to each Class 2 LTIP Unit, each Class 2 LTIP Unit may be converted into a unit of limited partnership of the UDR Partnership (a "Partnership Common Unit"), provided that such Class 2 LTIP Unit has been outstanding for at least two years from the date of grant.

F4 · derivative.underlying: A holder of Partnership Common Units has the right to require the UDR Partnership to redeem all or a portion of the Partnership Common Units held by the holder in exchange for a cash payment based on the market value of the Company's Common Stock at the time of redemption, as defined in the Partnership Agreement (the "Cash Amount"). However, the UDR Partnership's obligation to pay the Cash Amount is subject the prior right of the Company to acquire such Partnership Common Units in exchange for either the Cash Amount or shares of the Company's Common Stock.

F5 · derivative.underlying: The Company, as the general partner of the UDR Partnership, may, in its sole discretion, purchase the Partnership Common Units by paying the limited partner either the Cash Amount or the REIT Share Amount (generally one share of the Company's Common Stock for each Partnership Common Unit), as such terms are defined in the Partnership Agreement. The right to convert the Class 2 LTIP Units into Partnership Common Units and the right to receive the Cash Amount or the REIT Share Amount (in the Company's sole discretion) in exchange for Partnership Common Units do not have expiration dates.

F6 · derivative.underlying: The Class 2 LTIP Units will vest only to the extent that pre-established performance metrics are met for the applicable performance period, subject to continuing employment. Except as otherwise set forth in the UDR, Inc. 1999 Long-Term Incentive Plan, as amended from time to time, except Section 14.9 thereof, the Partnership Agreement, or as determined by the Compensation Committee of the Company's Board of Directors (the "Committee"), in its sole discretion, vesting of the Class 2 LTIP Units shall cease upon the date of termination for any reason other than in the event of a change of control of the Company, and no unvested Class 2 LTIP Units shall thereafter become vested.

F7 · derivative.underlying: In the event of a change of control of the Company, the Class 2 LTIP Units will vest only if the holder's employment or other service relationship with the Company is terminated by the Company without cause, or by the holder for good reason, in each case on or within 12 months following the date of a change of control. Further, all restrictions on outstanding awards that have been earned shall lapse upon the Company's termination of the holder's employment without cause or the holder's termination of employment for good reason.

F8 · derivative.underlying: The vesting of these Class 2 LTIP Units shall be determined as follows: 35 percent shall be based on a goal measured by the Company's relative total shareholder return ("TSR") as compared to an apartment peer group over a three-year cumulative performance period (the "3-Year Relative Apartment Peer TSR Metric"); 30 percent shall be based on the achievement of a pre-determined FFO as Adjusted goal over a one-year period (the "1-Year FFO as Adjusted Metric"); 20 percent shall be determined based on a goal measured by the Company's relative TSR as compared to a REIT peer group over a three-year cumulative performance period (the "3-Year Relative REIT TSR Metric"); and 15 percent shall be based on a goal measured by the Company's relative FFO as Adjusted growth rate as compared to an apartment peer group over a three-year cumulative performance period (the "3-Year Relative FFO as Adjusted Metric").

F9 · derivative.underlying: The portions of these Class 2 LTIP Units based upon the 3-Year Relative Apartment Peer TSR Metric, the 3-Year Relative REIT TSR Metric and the 3-Year Relative FFO as Adjusted Metric will vest on the date the Committee determines performance (the "Determination Date"). The portion of these Class 2 LTIP Units based upon the 1-Year FFO as Adjusted Metric will vest 50 percent on the Determination Date, and 50 percent on the one year anniversary thereof.

SEC source: 0001096906-23-000028 · form4.xml · nonDerivative · entry 1

Lacy Michael D · CIK 0001827142 · SVP-Property Operations

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 12,584

F1 · kind: Represents shares of restricted stock withheld to satisfy the reporting person's tax withholding obligation upon vesting of restricted stock. The deemed disposition of the withheld shares is exempt pursuant to Rule 16b-3(e).

SEC source: 0001096906-23-000029 · form4.xml · derivative · entry 2

Hofmeister Tracy L · CIK 0001614109 · SVP - Chief Accounting Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 83,766

Underlying: Common Stock · 48,720 shares

Expires 2033-01-03

F2 · security: Represents Class 2 Performance LTIP Units in United Dominion Realty, L.P., a Delaware limited partnership (the "UDR Partnership"). UDR, Inc. (the "Company") is the parent company and sole general partner of the UDR Partnership.

F3 · derivative.exercise_price: Subject to the conditions set forth in the Eleventh Amendment to the Amended and Restated Agreement of Limited Partnership of the UDR Partnership (the "Partnership Agreement"), each Class 2 Performance LTIP Unit may be converted, at the election of the holder, into a Class 2 LTIP Unit at any time (i) on or after when the Class 2 Performance LTIP Unit has vested (as described in footnotes 9, 10, 11 & 12 below) and (ii) before the expiration date of the Class 2 Performance LTIP Unit.

F4 · derivative.exercise_price: Class 2 Performance LTIP Units convert to a number of Class 2 LTIP Units equal to (i) the applicable Performance LTIP Unit Value, which is calculated as the product of (x) the excess (if any) of the REIT Share Value over the Issue Price for the Class 2 Performance Unit and (y) the Conversion Factor, multiplied by (ii) the number of Class 2 Performance LTIP Units being converted, and divided by (iii) the REIT Share Value on the Conversion Date, as such terms are defined in the Partnership Agreement.

F5 · derivative.exercise_price: Subject to the conditions set forth in the Eleventh Amendment to the Partnership Agreement and subject to any vesting conditions specified with respect to each Class 2 LTIP Unit, each Class 2 LTIP Unit may be converted, at the election of the holder, into a unit of limited partnership of the UDR Partnership (a "Partnership Common Unit"), provided that such Class 2 LTIP Unit has been outstanding for at least two years from the date of grant.

F6 · derivative.exercise_price: A holder of Partnership Common Units has the right to require the UDR Partnership to redeem all or a portion of the Partnership Common Units held by the holder in exchange for a cash payment based on the market value of the Company's Common Stock at the time of redemption, as defined in the Partnership Agreement (the "Cash Amount"). However, the UDR Partnership's obligation to pay the Cash Amount is subject the prior right of the Company to acquire such Partnership Common Units in exchange for either the Cash Amount or shares of the Company's Common Stock, as described in footnote 7 below.

F7 · derivative.exercise_price: The Company, as the general partner of the UDR Partnership, may, in its sole discretion, purchase the Partnership Common Units by paying the limited partner either the Cash Amount or the REIT Share Amount (generally one share of the Company's Common Stock for each Partnership Common Unit), as such terms are defined in the Amended and Restated Agreement of Limited Partnership of the UDR Partnership. The right to convert the Class 2 LTIP Units into Partnership Common Units and the right to receive the Cash Amount or the REIT Share Amount (in the Company's sole discretion) in exchange for Partnership Common Units do not have expiration dates.

F8 · shares: Amount represents the maximum award (including dividends) that could be earned, which is subject to forfeiture when the performance results are determined.

F9 · shares: The Class 2 Performance LTIP Units will vest only to the extent that pre-established performance metrics are met for the applicable performance period, subject to continuing employment. Except as otherwise set forth in the UDR, Inc. 1999 Long-Term Incentive Plan, as amended from time to time, except Section 14.9 thereof, the Partnership Agreement, or as determined by the Compensation Committee of the Company's Board of Directors (the "Committee"), in its sole discretion, vesting of the Class 2 Performance LTIP Units shall cease upon the date of termination for any reason other than in the event of a change of control of the Company, and no unvested Class 2 Performance LTIP Units shall thereafter become vested.

F10 · shares: In the event of a change of control of the Company, the Class 2 Performance LTIP Units will vest only if the holder's employment or other service relationship with the Company is terminated by the Company without cause, or by the holder for good reason, in each case on or within 12 months following the date of a change of control. Further, all restrictions on outstanding awards that have been earned shall lapse upon the Company's termination of the holder's employment without cause or the holder's termination of employment for good reason.

F11 · shares: The vesting of these Class 2 Performance LTIP Units shall be determined as follows: 35 percent shall be based on a goal measured by the Company's relative total shareholder return ("TSR") as compared to an apartment peer group over a three-year cumulative performance period (the "3-Year Relative Apartment Peer TSR Metric"); 30 percent shall be based on the achievement of a pre-determined FFO as Adjusted goal over a one-year period (the "1-Year FFO as Adjusted Metric"); 20 percent shall be determined based on a goal measured by the Company's relative TSR as compared to a REIT peer group over a three-year cumulative performance period (the "3-Year Relative REIT TSR Metric"); and 15 percent shall be based on a goal measured by the Company's relative FFO as Adjusted growth rate as compared to an apartment peer group over a three-year cumulative performance period (the "3-Year Relative FFO as Adjusted Metric").

F12 · shares: The portions of these Class 2 Performance LTIP Units based upon the 3-Year Relative Apartment Peer TSR Metric, the 3-Year Relative REIT TSR Metric and the 3-Year Relative FFO as Adjusted Metric will vest on the date the Committee determines performance (the "Determination Date"). The portion of the Class 2 LTIP Units based upon the 1-Year FFO as Adjusted Metric will vest 50 percent on the Determination Date, and 50 percent on the one year anniversary thereof.

F3 · derivative.exercise_date: Subject to the conditions set forth in the Eleventh Amendment to the Amended and Restated Agreement of Limited Partnership of the UDR Partnership (the "Partnership Agreement"), each Class 2 Performance LTIP Unit may be converted, at the election of the holder, into a Class 2 LTIP Unit at any time (i) on or after when the Class 2 Performance LTIP Unit has vested (as described in footnotes 9, 10, 11 & 12 below) and (ii) before the expiration date of the Class 2 Performance LTIP Unit.

F4 · derivative.exercise_date: Class 2 Performance LTIP Units convert to a number of Class 2 LTIP Units equal to (i) the applicable Performance LTIP Unit Value, which is calculated as the product of (x) the excess (if any) of the REIT Share Value over the Issue Price for the Class 2 Performance Unit and (y) the Conversion Factor, multiplied by (ii) the number of Class 2 Performance LTIP Units being converted, and divided by (iii) the REIT Share Value on the Conversion Date, as such terms are defined in the Partnership Agreement.

F5 · derivative.exercise_date: Subject to the conditions set forth in the Eleventh Amendment to the Partnership Agreement and subject to any vesting conditions specified with respect to each Class 2 LTIP Unit, each Class 2 LTIP Unit may be converted, at the election of the holder, into a unit of limited partnership of the UDR Partnership (a "Partnership Common Unit"), provided that such Class 2 LTIP Unit has been outstanding for at least two years from the date of grant.

F6 · derivative.exercise_date: A holder of Partnership Common Units has the right to require the UDR Partnership to redeem all or a portion of the Partnership Common Units held by the holder in exchange for a cash payment based on the market value of the Company's Common Stock at the time of redemption, as defined in the Partnership Agreement (the "Cash Amount"). However, the UDR Partnership's obligation to pay the Cash Amount is subject the prior right of the Company to acquire such Partnership Common Units in exchange for either the Cash Amount or shares of the Company's Common Stock, as described in footnote 7 below.

F7 · derivative.exercise_date: The Company, as the general partner of the UDR Partnership, may, in its sole discretion, purchase the Partnership Common Units by paying the limited partner either the Cash Amount or the REIT Share Amount (generally one share of the Company's Common Stock for each Partnership Common Unit), as such terms are defined in the Amended and Restated Agreement of Limited Partnership of the UDR Partnership. The right to convert the Class 2 LTIP Units into Partnership Common Units and the right to receive the Cash Amount or the REIT Share Amount (in the Company's sole discretion) in exchange for Partnership Common Units do not have expiration dates.

F9 · derivative.exercise_date: The Class 2 Performance LTIP Units will vest only to the extent that pre-established performance metrics are met for the applicable performance period, subject to continuing employment. Except as otherwise set forth in the UDR, Inc. 1999 Long-Term Incentive Plan, as amended from time to time, except Section 14.9 thereof, the Partnership Agreement, or as determined by the Compensation Committee of the Company's Board of Directors (the "Committee"), in its sole discretion, vesting of the Class 2 Performance LTIP Units shall cease upon the date of termination for any reason other than in the event of a change of control of the Company, and no unvested Class 2 Performance LTIP Units shall thereafter become vested.

F10 · derivative.exercise_date: In the event of a change of control of the Company, the Class 2 Performance LTIP Units will vest only if the holder's employment or other service relationship with the Company is terminated by the Company without cause, or by the holder for good reason, in each case on or within 12 months following the date of a change of control. Further, all restrictions on outstanding awards that have been earned shall lapse upon the Company's termination of the holder's employment without cause or the holder's termination of employment for good reason.

F11 · derivative.exercise_date: The vesting of these Class 2 Performance LTIP Units shall be determined as follows: 35 percent shall be based on a goal measured by the Company's relative total shareholder return ("TSR") as compared to an apartment peer group over a three-year cumulative performance period (the "3-Year Relative Apartment Peer TSR Metric"); 30 percent shall be based on the achievement of a pre-determined FFO as Adjusted goal over a one-year period (the "1-Year FFO as Adjusted Metric"); 20 percent shall be determined based on a goal measured by the Company's relative TSR as compared to a REIT peer group over a three-year cumulative performance period (the "3-Year Relative REIT TSR Metric"); and 15 percent shall be based on a goal measured by the Company's relative FFO as Adjusted growth rate as compared to an apartment peer group over a three-year cumulative performance period (the "3-Year Relative FFO as Adjusted Metric").

F12 · derivative.exercise_date: The portions of these Class 2 Performance LTIP Units based upon the 3-Year Relative Apartment Peer TSR Metric, the 3-Year Relative REIT TSR Metric and the 3-Year Relative FFO as Adjusted Metric will vest on the date the Committee determines performance (the "Determination Date"). The portion of the Class 2 LTIP Units based upon the 1-Year FFO as Adjusted Metric will vest 50 percent on the Determination Date, and 50 percent on the one year anniversary thereof.

F3 · derivative.underlying: Subject to the conditions set forth in the Eleventh Amendment to the Amended and Restated Agreement of Limited Partnership of the UDR Partnership (the "Partnership Agreement"), each Class 2 Performance LTIP Unit may be converted, at the election of the holder, into a Class 2 LTIP Unit at any time (i) on or after when the Class 2 Performance LTIP Unit has vested (as described in footnotes 9, 10, 11 & 12 below) and (ii) before the expiration date of the Class 2 Performance LTIP Unit.

F4 · derivative.underlying: Class 2 Performance LTIP Units convert to a number of Class 2 LTIP Units equal to (i) the applicable Performance LTIP Unit Value, which is calculated as the product of (x) the excess (if any) of the REIT Share Value over the Issue Price for the Class 2 Performance Unit and (y) the Conversion Factor, multiplied by (ii) the number of Class 2 Performance LTIP Units being converted, and divided by (iii) the REIT Share Value on the Conversion Date, as such terms are defined in the Partnership Agreement.

F5 · derivative.underlying: Subject to the conditions set forth in the Eleventh Amendment to the Partnership Agreement and subject to any vesting conditions specified with respect to each Class 2 LTIP Unit, each Class 2 LTIP Unit may be converted, at the election of the holder, into a unit of limited partnership of the UDR Partnership (a "Partnership Common Unit"), provided that such Class 2 LTIP Unit has been outstanding for at least two years from the date of grant.

F6 · derivative.underlying: A holder of Partnership Common Units has the right to require the UDR Partnership to redeem all or a portion of the Partnership Common Units held by the holder in exchange for a cash payment based on the market value of the Company's Common Stock at the time of redemption, as defined in the Partnership Agreement (the "Cash Amount"). However, the UDR Partnership's obligation to pay the Cash Amount is subject the prior right of the Company to acquire such Partnership Common Units in exchange for either the Cash Amount or shares of the Company's Common Stock, as described in footnote 7 below.

F7 · derivative.underlying: The Company, as the general partner of the UDR Partnership, may, in its sole discretion, purchase the Partnership Common Units by paying the limited partner either the Cash Amount or the REIT Share Amount (generally one share of the Company's Common Stock for each Partnership Common Unit), as such terms are defined in the Amended and Restated Agreement of Limited Partnership of the UDR Partnership. The right to convert the Class 2 LTIP Units into Partnership Common Units and the right to receive the Cash Amount or the REIT Share Amount (in the Company's sole discretion) in exchange for Partnership Common Units do not have expiration dates.

F10 · derivative.underlying: In the event of a change of control of the Company, the Class 2 Performance LTIP Units will vest only if the holder's employment or other service relationship with the Company is terminated by the Company without cause, or by the holder for good reason, in each case on or within 12 months following the date of a change of control. Further, all restrictions on outstanding awards that have been earned shall lapse upon the Company's termination of the holder's employment without cause or the holder's termination of employment for good reason.

F11 · derivative.underlying: The vesting of these Class 2 Performance LTIP Units shall be determined as follows: 35 percent shall be based on a goal measured by the Company's relative total shareholder return ("TSR") as compared to an apartment peer group over a three-year cumulative performance period (the "3-Year Relative Apartment Peer TSR Metric"); 30 percent shall be based on the achievement of a pre-determined FFO as Adjusted goal over a one-year period (the "1-Year FFO as Adjusted Metric"); 20 percent shall be determined based on a goal measured by the Company's relative TSR as compared to a REIT peer group over a three-year cumulative performance period (the "3-Year Relative REIT TSR Metric"); and 15 percent shall be based on a goal measured by the Company's relative FFO as Adjusted growth rate as compared to an apartment peer group over a three-year cumulative performance period (the "3-Year Relative FFO as Adjusted Metric").

F12 · derivative.underlying: The portions of these Class 2 Performance LTIP Units based upon the 3-Year Relative Apartment Peer TSR Metric, the 3-Year Relative REIT TSR Metric and the 3-Year Relative FFO as Adjusted Metric will vest on the date the Committee determines performance (the "Determination Date"). The portion of the Class 2 LTIP Units based upon the 1-Year FFO as Adjusted Metric will vest 50 percent on the Determination Date, and 50 percent on the one year anniversary thereof.

SEC source: 0001096906-23-000029 · form4.xml · nonDerivative · entry 1

Hofmeister Tracy L · CIK 0001614109 · SVP - Chief Accounting Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 8,980

F1 · kind: Represents shares of restricted stock withheld to satisfy the reporting person's tax withholding obligation upon vesting of restricted stock. The deemed disposition of the withheld shares is exempt pursuant to Rule 16b-3(e).

SEC source: 0001096906-23-000026 · form4.xml · derivative · entry 4

ALCOCK HARRY G · CIK 0001229387 · SVP-Chief Investment Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 871,296

Underlying: Common Stock · 158,343 shares

Expires 2033-01-03

F12 · security: Represents Class 2 Performance LTIP Units in the UDR Partnership.

F2 · derivative.exercise_price: Subject to the conditions set forth in the Eleventh Amendment to the Amended and Restated Agreement of Limited Partnership of the UDR Partnership (the "Partnership Agreement") and subject to the vesting conditions specified with respect to each Class 2 LTIP Unit, each Class 2 LTIP Unit may be converted into a unit of limited partnership of the UDR Partnership (a "Partnership Common Unit"), provided that such Class 2 LTIP Unit has been outstanding for at least two years from the date of grant.

F3 · derivative.exercise_price: A holder of Partnership Common Units has the right to require the UDR Partnership to redeem all or a portion of the Partnership Common Units held by the holder in exchange for a cash payment based on the market value of the Company's Common Stock at the time of redemption, as defined in the Partnership Agreement (the "Cash Amount"). However, the UDR Partnership's obligation to pay the Cash Amount is subject the prior right of the Company to acquire such Partnership Common Units in exchange for either the Cash Amount or shares of the Company's Common Stock.

F4 · derivative.exercise_price: The Company, as the general partner of the UDR Partnership, may, in its sole discretion, purchase the Partnership Common Units by paying the limited partner either the Cash Amount or the REIT Share Amount (generally one share of the Company's Common Stock for each Partnership Common Unit), as such terms are defined in the Partnership Agreement. The right to convert the Class 2 LTIP Units into Partnership Common Units and the right to receive the Cash Amount or the REIT Share Amount (in the Company's sole discretion) in exchange for Partnership Common Units do not have expiration dates.

F13 · derivative.exercise_price: Subject to the conditions set forth in the Eleventh Amendment to the Partnership Agreement, each Class 2 Performance LTIP Unit may be converted, at the election of the holder, into a Class 2 LTIP Unit at any time (i) on or after when the Class 2 Performance LTIP Unit has vested (as described in footnotes 15, 16, 17, 18, 19 & 20 below) and (ii) before the expiration date of the Class 2 Performance LTIP Unit.

F14 · derivative.exercise_price: Class 2 Performance LTIP Units convert to a number of Class 2 LTIP Units equal to (i) the applicable Performance LTIP Unit Value, which is calculated as the product of (x) the excess (if any) of the REIT Share Value over the Issue Price for the Class 2 Performance Unit and (y) the Conversion Factor, multiplied by (ii) the number of Class 2 Performance LTIP Units being converted, and divided by (iii) the REIT Share Value on the Conversion Date, as such terms are defined in the Partnership Agreement.

F9 · shares: Amount represents the maximum award (including dividends) that could be earned, which is subject to forfeiture when the performance results are determined.

F15 · shares: The Class 2 Performance LTIP Units will vest only to the extent that pre-established performance metrics are met for the applicable performance period, subject to continuing employment. Except as otherwise set forth in the UDR, Inc. 1999 Long-Term Incentive Plan, as amended from time to time, except Section 14.9 thereof, the Partnership Agreement, or as determined by the Committee, in its sole discretion, vesting of the Class 2 Performance LTIP Units shall cease upon the date of termination for any reason other than in the event of a change of control of the Company, and no unvested Class 2 Performance LTIP Units shall thereafter become vested.

F16 · shares: In the event of a change of control of the Company, the Class 2 Performance LTIP Units will vest only if the holder's employment or other service relationship with the Company is terminated by the Company without cause, or by the holder for good reason, in each case on or within 12 months following the date of a change of control. Further, all restrictions on outstanding awards that have been earned shall lapse upon the Company's termination of the holder's employment without cause or the holder's termination of employment for good reason.

F19 · shares: The vesting of these Class 2 Performance LTIP Units shall be determined as follows: 30 percent shall be based upon the Committee's subjective determination, in its sole discretion, of the executive officer's performance with respect to individual performance objectives; and 70 percent shall be based on the pre-determined financial metrics. These Class 2 Performance LTIP Units will vest upon a determination by the Committee after the completion of the applicable performance period.

F20 · shares: The portion of these Class 2 LTIP Units that vests based upon the achievement of pre-determined financial metrics shall be determined as follows: 40 percent based on a transactions index goal; 30 percent based on an FFO as Adjusted per share goal; 10 percent based on an operations index goal; 10 percent based on a GRESB percentile goal; and 10 percent based on an associate engagement & DEI goal, each over a one-year period.

F2 · derivative.exercise_date: Subject to the conditions set forth in the Eleventh Amendment to the Amended and Restated Agreement of Limited Partnership of the UDR Partnership (the "Partnership Agreement") and subject to the vesting conditions specified with respect to each Class 2 LTIP Unit, each Class 2 LTIP Unit may be converted into a unit of limited partnership of the UDR Partnership (a "Partnership Common Unit"), provided that such Class 2 LTIP Unit has been outstanding for at least two years from the date of grant.

F3 · derivative.exercise_date: A holder of Partnership Common Units has the right to require the UDR Partnership to redeem all or a portion of the Partnership Common Units held by the holder in exchange for a cash payment based on the market value of the Company's Common Stock at the time of redemption, as defined in the Partnership Agreement (the "Cash Amount"). However, the UDR Partnership's obligation to pay the Cash Amount is subject the prior right of the Company to acquire such Partnership Common Units in exchange for either the Cash Amount or shares of the Company's Common Stock.

F4 · derivative.exercise_date: The Company, as the general partner of the UDR Partnership, may, in its sole discretion, purchase the Partnership Common Units by paying the limited partner either the Cash Amount or the REIT Share Amount (generally one share of the Company's Common Stock for each Partnership Common Unit), as such terms are defined in the Partnership Agreement. The right to convert the Class 2 LTIP Units into Partnership Common Units and the right to receive the Cash Amount or the REIT Share Amount (in the Company's sole discretion) in exchange for Partnership Common Units do not have expiration dates.

F13 · derivative.exercise_date: Subject to the conditions set forth in the Eleventh Amendment to the Partnership Agreement, each Class 2 Performance LTIP Unit may be converted, at the election of the holder, into a Class 2 LTIP Unit at any time (i) on or after when the Class 2 Performance LTIP Unit has vested (as described in footnotes 15, 16, 17, 18, 19 & 20 below) and (ii) before the expiration date of the Class 2 Performance LTIP Unit.

F14 · derivative.exercise_date: Class 2 Performance LTIP Units convert to a number of Class 2 LTIP Units equal to (i) the applicable Performance LTIP Unit Value, which is calculated as the product of (x) the excess (if any) of the REIT Share Value over the Issue Price for the Class 2 Performance Unit and (y) the Conversion Factor, multiplied by (ii) the number of Class 2 Performance LTIP Units being converted, and divided by (iii) the REIT Share Value on the Conversion Date, as such terms are defined in the Partnership Agreement.

F15 · derivative.exercise_date: The Class 2 Performance LTIP Units will vest only to the extent that pre-established performance metrics are met for the applicable performance period, subject to continuing employment. Except as otherwise set forth in the UDR, Inc. 1999 Long-Term Incentive Plan, as amended from time to time, except Section 14.9 thereof, the Partnership Agreement, or as determined by the Committee, in its sole discretion, vesting of the Class 2 Performance LTIP Units shall cease upon the date of termination for any reason other than in the event of a change of control of the Company, and no unvested Class 2 Performance LTIP Units shall thereafter become vested.

F16 · derivative.exercise_date: In the event of a change of control of the Company, the Class 2 Performance LTIP Units will vest only if the holder's employment or other service relationship with the Company is terminated by the Company without cause, or by the holder for good reason, in each case on or within 12 months following the date of a change of control. Further, all restrictions on outstanding awards that have been earned shall lapse upon the Company's termination of the holder's employment without cause or the holder's termination of employment for good reason.

F19 · derivative.exercise_date: The vesting of these Class 2 Performance LTIP Units shall be determined as follows: 30 percent shall be based upon the Committee's subjective determination, in its sole discretion, of the executive officer's performance with respect to individual performance objectives; and 70 percent shall be based on the pre-determined financial metrics. These Class 2 Performance LTIP Units will vest upon a determination by the Committee after the completion of the applicable performance period.

F20 · derivative.exercise_date: The portion of these Class 2 LTIP Units that vests based upon the achievement of pre-determined financial metrics shall be determined as follows: 40 percent based on a transactions index goal; 30 percent based on an FFO as Adjusted per share goal; 10 percent based on an operations index goal; 10 percent based on a GRESB percentile goal; and 10 percent based on an associate engagement & DEI goal, each over a one-year period.

F2 · derivative.underlying: Subject to the conditions set forth in the Eleventh Amendment to the Amended and Restated Agreement of Limited Partnership of the UDR Partnership (the "Partnership Agreement") and subject to the vesting conditions specified with respect to each Class 2 LTIP Unit, each Class 2 LTIP Unit may be converted into a unit of limited partnership of the UDR Partnership (a "Partnership Common Unit"), provided that such Class 2 LTIP Unit has been outstanding for at least two years from the date of grant.

F3 · derivative.underlying: A holder of Partnership Common Units has the right to require the UDR Partnership to redeem all or a portion of the Partnership Common Units held by the holder in exchange for a cash payment based on the market value of the Company's Common Stock at the time of redemption, as defined in the Partnership Agreement (the "Cash Amount"). However, the UDR Partnership's obligation to pay the Cash Amount is subject the prior right of the Company to acquire such Partnership Common Units in exchange for either the Cash Amount or shares of the Company's Common Stock.

F4 · derivative.underlying: The Company, as the general partner of the UDR Partnership, may, in its sole discretion, purchase the Partnership Common Units by paying the limited partner either the Cash Amount or the REIT Share Amount (generally one share of the Company's Common Stock for each Partnership Common Unit), as such terms are defined in the Partnership Agreement. The right to convert the Class 2 LTIP Units into Partnership Common Units and the right to receive the Cash Amount or the REIT Share Amount (in the Company's sole discretion) in exchange for Partnership Common Units do not have expiration dates.

F13 · derivative.underlying: Subject to the conditions set forth in the Eleventh Amendment to the Partnership Agreement, each Class 2 Performance LTIP Unit may be converted, at the election of the holder, into a Class 2 LTIP Unit at any time (i) on or after when the Class 2 Performance LTIP Unit has vested (as described in footnotes 15, 16, 17, 18, 19 & 20 below) and (ii) before the expiration date of the Class 2 Performance LTIP Unit.

F14 · derivative.underlying: Class 2 Performance LTIP Units convert to a number of Class 2 LTIP Units equal to (i) the applicable Performance LTIP Unit Value, which is calculated as the product of (x) the excess (if any) of the REIT Share Value over the Issue Price for the Class 2 Performance Unit and (y) the Conversion Factor, multiplied by (ii) the number of Class 2 Performance LTIP Units being converted, and divided by (iii) the REIT Share Value on the Conversion Date, as such terms are defined in the Partnership Agreement.

F15 · derivative.underlying: The Class 2 Performance LTIP Units will vest only to the extent that pre-established performance metrics are met for the applicable performance period, subject to continuing employment. Except as otherwise set forth in the UDR, Inc. 1999 Long-Term Incentive Plan, as amended from time to time, except Section 14.9 thereof, the Partnership Agreement, or as determined by the Committee, in its sole discretion, vesting of the Class 2 Performance LTIP Units shall cease upon the date of termination for any reason other than in the event of a change of control of the Company, and no unvested Class 2 Performance LTIP Units shall thereafter become vested.

F16 · derivative.underlying: In the event of a change of control of the Company, the Class 2 Performance LTIP Units will vest only if the holder's employment or other service relationship with the Company is terminated by the Company without cause, or by the holder for good reason, in each case on or within 12 months following the date of a change of control. Further, all restrictions on outstanding awards that have been earned shall lapse upon the Company's termination of the holder's employment without cause or the holder's termination of employment for good reason.

F19 · derivative.underlying: The vesting of these Class 2 Performance LTIP Units shall be determined as follows: 30 percent shall be based upon the Committee's subjective determination, in its sole discretion, of the executive officer's performance with respect to individual performance objectives; and 70 percent shall be based on the pre-determined financial metrics. These Class 2 Performance LTIP Units will vest upon a determination by the Committee after the completion of the applicable performance period.

F20 · derivative.underlying: The portion of these Class 2 LTIP Units that vests based upon the achievement of pre-determined financial metrics shall be determined as follows: 40 percent based on a transactions index goal; 30 percent based on an FFO as Adjusted per share goal; 10 percent based on an operations index goal; 10 percent based on a GRESB percentile goal; and 10 percent based on an associate engagement & DEI goal, each over a one-year period.

SEC source: 0001096906-23-000026 · form4.xml · derivative · entry 3

ALCOCK HARRY G · CIK 0001229387 · SVP-Chief Investment Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 712,953

Underlying: Common Stock · 274,056 shares

Expires 2033-01-03

F12 · security: Represents Class 2 Performance LTIP Units in the UDR Partnership.

F2 · derivative.exercise_price: Subject to the conditions set forth in the Eleventh Amendment to the Amended and Restated Agreement of Limited Partnership of the UDR Partnership (the "Partnership Agreement") and subject to the vesting conditions specified with respect to each Class 2 LTIP Unit, each Class 2 LTIP Unit may be converted into a unit of limited partnership of the UDR Partnership (a "Partnership Common Unit"), provided that such Class 2 LTIP Unit has been outstanding for at least two years from the date of grant.

F3 · derivative.exercise_price: A holder of Partnership Common Units has the right to require the UDR Partnership to redeem all or a portion of the Partnership Common Units held by the holder in exchange for a cash payment based on the market value of the Company's Common Stock at the time of redemption, as defined in the Partnership Agreement (the "Cash Amount"). However, the UDR Partnership's obligation to pay the Cash Amount is subject the prior right of the Company to acquire such Partnership Common Units in exchange for either the Cash Amount or shares of the Company's Common Stock.

F4 · derivative.exercise_price: The Company, as the general partner of the UDR Partnership, may, in its sole discretion, purchase the Partnership Common Units by paying the limited partner either the Cash Amount or the REIT Share Amount (generally one share of the Company's Common Stock for each Partnership Common Unit), as such terms are defined in the Partnership Agreement. The right to convert the Class 2 LTIP Units into Partnership Common Units and the right to receive the Cash Amount or the REIT Share Amount (in the Company's sole discretion) in exchange for Partnership Common Units do not have expiration dates.

F13 · derivative.exercise_price: Subject to the conditions set forth in the Eleventh Amendment to the Partnership Agreement, each Class 2 Performance LTIP Unit may be converted, at the election of the holder, into a Class 2 LTIP Unit at any time (i) on or after when the Class 2 Performance LTIP Unit has vested (as described in footnotes 15, 16, 17, 18, 19 & 20 below) and (ii) before the expiration date of the Class 2 Performance LTIP Unit.

F14 · derivative.exercise_price: Class 2 Performance LTIP Units convert to a number of Class 2 LTIP Units equal to (i) the applicable Performance LTIP Unit Value, which is calculated as the product of (x) the excess (if any) of the REIT Share Value over the Issue Price for the Class 2 Performance Unit and (y) the Conversion Factor, multiplied by (ii) the number of Class 2 Performance LTIP Units being converted, and divided by (iii) the REIT Share Value on the Conversion Date, as such terms are defined in the Partnership Agreement.

F9 · shares: Amount represents the maximum award (including dividends) that could be earned, which is subject to forfeiture when the performance results are determined.

F15 · shares: The Class 2 Performance LTIP Units will vest only to the extent that pre-established performance metrics are met for the applicable performance period, subject to continuing employment. Except as otherwise set forth in the UDR, Inc. 1999 Long-Term Incentive Plan, as amended from time to time, except Section 14.9 thereof, the Partnership Agreement, or as determined by the Committee, in its sole discretion, vesting of the Class 2 Performance LTIP Units shall cease upon the date of termination for any reason other than in the event of a change of control of the Company, and no unvested Class 2 Performance LTIP Units shall thereafter become vested.

F16 · shares: In the event of a change of control of the Company, the Class 2 Performance LTIP Units will vest only if the holder's employment or other service relationship with the Company is terminated by the Company without cause, or by the holder for good reason, in each case on or within 12 months following the date of a change of control. Further, all restrictions on outstanding awards that have been earned shall lapse upon the Company's termination of the holder's employment without cause or the holder's termination of employment for good reason.

F17 · shares: The vesting of these Class 2 Performance LTIP Units shall be determined as follows: 35 percent shall be based on a goal measured by the Company's relative total shareholder return ("TSR") as compared to an apartment peer group over a three-year cumulative performance period (the "3-Year Relative Apartment Peer TSR Metric"); 30 percent shall be based on the achievement of a pre-determined FFO as Adjusted goal over a one-year period (the "1-Year FFO as Adjusted Metric"); 20 percent shall be determined based on a goal measured by the Company's relative TSR as compared to a REIT peer group over a three-year cumulative performance period (the "3-Year Relative REIT TSR Metric"); and 15 percent shall be based on a goal measured by the Company's relative FFO as Adjusted growth rate as compared to an apartment peer group over a three-year cumulative performance period (the "3-Year Relative FFO as Adjusted Metric").

F18 · shares: The portions of these Class 2 Performance LTIP Units based upon the 3-Year Relative Apartment Peer TSR Metric, the 3-Year Relative REIT TSR Metric and the 3-Year Relative FFO as Adjusted Metric will vest on the date the Committee determines performance (the "Determination Date"). The portion of the Class 2 LTIP Units based upon the 1-Year FFO as Adjusted Metric will vest 50 percent on the Determination Date, and 50 percent on the one year anniversary thereof.

F2 · derivative.exercise_date: Subject to the conditions set forth in the Eleventh Amendment to the Amended and Restated Agreement of Limited Partnership of the UDR Partnership (the "Partnership Agreement") and subject to the vesting conditions specified with respect to each Class 2 LTIP Unit, each Class 2 LTIP Unit may be converted into a unit of limited partnership of the UDR Partnership (a "Partnership Common Unit"), provided that such Class 2 LTIP Unit has been outstanding for at least two years from the date of grant.

F3 · derivative.exercise_date: A holder of Partnership Common Units has the right to require the UDR Partnership to redeem all or a portion of the Partnership Common Units held by the holder in exchange for a cash payment based on the market value of the Company's Common Stock at the time of redemption, as defined in the Partnership Agreement (the "Cash Amount"). However, the UDR Partnership's obligation to pay the Cash Amount is subject the prior right of the Company to acquire such Partnership Common Units in exchange for either the Cash Amount or shares of the Company's Common Stock.

F4 · derivative.exercise_date: The Company, as the general partner of the UDR Partnership, may, in its sole discretion, purchase the Partnership Common Units by paying the limited partner either the Cash Amount or the REIT Share Amount (generally one share of the Company's Common Stock for each Partnership Common Unit), as such terms are defined in the Partnership Agreement. The right to convert the Class 2 LTIP Units into Partnership Common Units and the right to receive the Cash Amount or the REIT Share Amount (in the Company's sole discretion) in exchange for Partnership Common Units do not have expiration dates.

F13 · derivative.exercise_date: Subject to the conditions set forth in the Eleventh Amendment to the Partnership Agreement, each Class 2 Performance LTIP Unit may be converted, at the election of the holder, into a Class 2 LTIP Unit at any time (i) on or after when the Class 2 Performance LTIP Unit has vested (as described in footnotes 15, 16, 17, 18, 19 & 20 below) and (ii) before the expiration date of the Class 2 Performance LTIP Unit.

F14 · derivative.exercise_date: Class 2 Performance LTIP Units convert to a number of Class 2 LTIP Units equal to (i) the applicable Performance LTIP Unit Value, which is calculated as the product of (x) the excess (if any) of the REIT Share Value over the Issue Price for the Class 2 Performance Unit and (y) the Conversion Factor, multiplied by (ii) the number of Class 2 Performance LTIP Units being converted, and divided by (iii) the REIT Share Value on the Conversion Date, as such terms are defined in the Partnership Agreement.

F15 · derivative.exercise_date: The Class 2 Performance LTIP Units will vest only to the extent that pre-established performance metrics are met for the applicable performance period, subject to continuing employment. Except as otherwise set forth in the UDR, Inc. 1999 Long-Term Incentive Plan, as amended from time to time, except Section 14.9 thereof, the Partnership Agreement, or as determined by the Committee, in its sole discretion, vesting of the Class 2 Performance LTIP Units shall cease upon the date of termination for any reason other than in the event of a change of control of the Company, and no unvested Class 2 Performance LTIP Units shall thereafter become vested.

F16 · derivative.exercise_date: In the event of a change of control of the Company, the Class 2 Performance LTIP Units will vest only if the holder's employment or other service relationship with the Company is terminated by the Company without cause, or by the holder for good reason, in each case on or within 12 months following the date of a change of control. Further, all restrictions on outstanding awards that have been earned shall lapse upon the Company's termination of the holder's employment without cause or the holder's termination of employment for good reason.

F17 · derivative.exercise_date: The vesting of these Class 2 Performance LTIP Units shall be determined as follows: 35 percent shall be based on a goal measured by the Company's relative total shareholder return ("TSR") as compared to an apartment peer group over a three-year cumulative performance period (the "3-Year Relative Apartment Peer TSR Metric"); 30 percent shall be based on the achievement of a pre-determined FFO as Adjusted goal over a one-year period (the "1-Year FFO as Adjusted Metric"); 20 percent shall be determined based on a goal measured by the Company's relative TSR as compared to a REIT peer group over a three-year cumulative performance period (the "3-Year Relative REIT TSR Metric"); and 15 percent shall be based on a goal measured by the Company's relative FFO as Adjusted growth rate as compared to an apartment peer group over a three-year cumulative performance period (the "3-Year Relative FFO as Adjusted Metric").

F18 · derivative.exercise_date: The portions of these Class 2 Performance LTIP Units based upon the 3-Year Relative Apartment Peer TSR Metric, the 3-Year Relative REIT TSR Metric and the 3-Year Relative FFO as Adjusted Metric will vest on the date the Committee determines performance (the "Determination Date"). The portion of the Class 2 LTIP Units based upon the 1-Year FFO as Adjusted Metric will vest 50 percent on the Determination Date, and 50 percent on the one year anniversary thereof.

F2 · derivative.underlying: Subject to the conditions set forth in the Eleventh Amendment to the Amended and Restated Agreement of Limited Partnership of the UDR Partnership (the "Partnership Agreement") and subject to the vesting conditions specified with respect to each Class 2 LTIP Unit, each Class 2 LTIP Unit may be converted into a unit of limited partnership of the UDR Partnership (a "Partnership Common Unit"), provided that such Class 2 LTIP Unit has been outstanding for at least two years from the date of grant.

F3 · derivative.underlying: A holder of Partnership Common Units has the right to require the UDR Partnership to redeem all or a portion of the Partnership Common Units held by the holder in exchange for a cash payment based on the market value of the Company's Common Stock at the time of redemption, as defined in the Partnership Agreement (the "Cash Amount"). However, the UDR Partnership's obligation to pay the Cash Amount is subject the prior right of the Company to acquire such Partnership Common Units in exchange for either the Cash Amount or shares of the Company's Common Stock.

F4 · derivative.underlying: The Company, as the general partner of the UDR Partnership, may, in its sole discretion, purchase the Partnership Common Units by paying the limited partner either the Cash Amount or the REIT Share Amount (generally one share of the Company's Common Stock for each Partnership Common Unit), as such terms are defined in the Partnership Agreement. The right to convert the Class 2 LTIP Units into Partnership Common Units and the right to receive the Cash Amount or the REIT Share Amount (in the Company's sole discretion) in exchange for Partnership Common Units do not have expiration dates.

F13 · derivative.underlying: Subject to the conditions set forth in the Eleventh Amendment to the Partnership Agreement, each Class 2 Performance LTIP Unit may be converted, at the election of the holder, into a Class 2 LTIP Unit at any time (i) on or after when the Class 2 Performance LTIP Unit has vested (as described in footnotes 15, 16, 17, 18, 19 & 20 below) and (ii) before the expiration date of the Class 2 Performance LTIP Unit.

F14 · derivative.underlying: Class 2 Performance LTIP Units convert to a number of Class 2 LTIP Units equal to (i) the applicable Performance LTIP Unit Value, which is calculated as the product of (x) the excess (if any) of the REIT Share Value over the Issue Price for the Class 2 Performance Unit and (y) the Conversion Factor, multiplied by (ii) the number of Class 2 Performance LTIP Units being converted, and divided by (iii) the REIT Share Value on the Conversion Date, as such terms are defined in the Partnership Agreement.

F15 · derivative.underlying: The Class 2 Performance LTIP Units will vest only to the extent that pre-established performance metrics are met for the applicable performance period, subject to continuing employment. Except as otherwise set forth in the UDR, Inc. 1999 Long-Term Incentive Plan, as amended from time to time, except Section 14.9 thereof, the Partnership Agreement, or as determined by the Committee, in its sole discretion, vesting of the Class 2 Performance LTIP Units shall cease upon the date of termination for any reason other than in the event of a change of control of the Company, and no unvested Class 2 Performance LTIP Units shall thereafter become vested.

F16 · derivative.underlying: In the event of a change of control of the Company, the Class 2 Performance LTIP Units will vest only if the holder's employment or other service relationship with the Company is terminated by the Company without cause, or by the holder for good reason, in each case on or within 12 months following the date of a change of control. Further, all restrictions on outstanding awards that have been earned shall lapse upon the Company's termination of the holder's employment without cause or the holder's termination of employment for good reason.

F17 · derivative.underlying: The vesting of these Class 2 Performance LTIP Units shall be determined as follows: 35 percent shall be based on a goal measured by the Company's relative total shareholder return ("TSR") as compared to an apartment peer group over a three-year cumulative performance period (the "3-Year Relative Apartment Peer TSR Metric"); 30 percent shall be based on the achievement of a pre-determined FFO as Adjusted goal over a one-year period (the "1-Year FFO as Adjusted Metric"); 20 percent shall be determined based on a goal measured by the Company's relative TSR as compared to a REIT peer group over a three-year cumulative performance period (the "3-Year Relative REIT TSR Metric"); and 15 percent shall be based on a goal measured by the Company's relative FFO as Adjusted growth rate as compared to an apartment peer group over a three-year cumulative performance period (the "3-Year Relative FFO as Adjusted Metric").

F18 · derivative.underlying: The portions of these Class 2 Performance LTIP Units based upon the 3-Year Relative Apartment Peer TSR Metric, the 3-Year Relative REIT TSR Metric and the 3-Year Relative FFO as Adjusted Metric will vest on the date the Committee determines performance (the "Determination Date"). The portion of the Class 2 LTIP Units based upon the 1-Year FFO as Adjusted Metric will vest 50 percent on the Determination Date, and 50 percent on the one year anniversary thereof.

SEC source: 0001096906-23-000026 · form4.xml · derivative · entry 2

ALCOCK HARRY G · CIK 0001229387 · SVP-Chief Investment Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 411,085

Underlying: Common Stock · 17,972 shares

Expires not disclosed

F1 · security: Represents Class 2 LTIP Units (the "Class 2 LTIP Units") in United Dominion Realty, L.P., a Delaware limited partnership (the "UDR Partnership"). UDR, Inc. (the "Company") is the parent company and sole general partner of the UDR Partnership.

F2 · derivative.exercise_price: Subject to the conditions set forth in the Eleventh Amendment to the Amended and Restated Agreement of Limited Partnership of the UDR Partnership (the "Partnership Agreement") and subject to the vesting conditions specified with respect to each Class 2 LTIP Unit, each Class 2 LTIP Unit may be converted into a unit of limited partnership of the UDR Partnership (a "Partnership Common Unit"), provided that such Class 2 LTIP Unit has been outstanding for at least two years from the date of grant.

F3 · derivative.exercise_price: A holder of Partnership Common Units has the right to require the UDR Partnership to redeem all or a portion of the Partnership Common Units held by the holder in exchange for a cash payment based on the market value of the Company's Common Stock at the time of redemption, as defined in the Partnership Agreement (the "Cash Amount"). However, the UDR Partnership's obligation to pay the Cash Amount is subject the prior right of the Company to acquire such Partnership Common Units in exchange for either the Cash Amount or shares of the Company's Common Stock.

F4 · derivative.exercise_price: The Company, as the general partner of the UDR Partnership, may, in its sole discretion, purchase the Partnership Common Units by paying the limited partner either the Cash Amount or the REIT Share Amount (generally one share of the Company's Common Stock for each Partnership Common Unit), as such terms are defined in the Partnership Agreement. The right to convert the Class 2 LTIP Units into Partnership Common Units and the right to receive the Cash Amount or the REIT Share Amount (in the Company's sole discretion) in exchange for Partnership Common Units do not have expiration dates.

F5 · shares: The Class 2 LTIP Units will vest only to the extent that pre-established performance metrics are met for the applicable performance period, subject to continuing employment. Except as otherwise set forth in the UDR, Inc. 1999 Long-Term Incentive Plan, as amended from time to time, except Section 14.9 thereof, the Partnership Agreement, or as determined by the Compensation Committee of the Company's Board of Directors (the "Committee"), in its sole discretion, vesting of the Class 2 LTIP Units shall cease upon the date of termination for any reason other than in the event of a change of control of the Company, and no unvested Class 2 LTIP Units shall thereafter become vested.

F6 · shares: In the event of a change of control of the Company, the Class 2 LTIP Units will vest only if the holder's employment or other service relationship with the Company is terminated by the Company without cause, or by the holder for good reason, in each case on or within 12 months following the date of a change of control. Further, all restrictions on outstanding awards that have been earned shall lapse upon the Company's termination of the holder's employment without cause or the holder's termination of employment for good reason.

F9 · shares: Amount represents the maximum award (including dividends) that could be earned, which is subject to forfeiture when the performance results are determined.

F10 · shares: The vesting of these Class 2 LTIP Units shall be determined as follows: 30 percent shall be based upon the Committee's subjective determination, in its sole discretion, of the executive officer's performance with respect to individual performance objectives; and 70 percent shall be based on pre-determined financial metrics. These Class 2 LTIP Units will vest upon a determination by the Committee after the completion of the applicable performance period.

F11 · shares: The portion of these Class 2 LTIP Units that vests based upon the achievement of pre-determined financial metrics shall be determined as follows: 40 percent based on a transactions index goal; 30 percent based on an FFO as Adjusted per share goal; 10 percent based on an operations index goal; 10 percent based on a GRESB percentile goal; and 10 percent based on an associate engagement & DEI goal, each over a one-year period.

F2 · derivative.exercise_date: Subject to the conditions set forth in the Eleventh Amendment to the Amended and Restated Agreement of Limited Partnership of the UDR Partnership (the "Partnership Agreement") and subject to the vesting conditions specified with respect to each Class 2 LTIP Unit, each Class 2 LTIP Unit may be converted into a unit of limited partnership of the UDR Partnership (a "Partnership Common Unit"), provided that such Class 2 LTIP Unit has been outstanding for at least two years from the date of grant.

F3 · derivative.exercise_date: A holder of Partnership Common Units has the right to require the UDR Partnership to redeem all or a portion of the Partnership Common Units held by the holder in exchange for a cash payment based on the market value of the Company's Common Stock at the time of redemption, as defined in the Partnership Agreement (the "Cash Amount"). However, the UDR Partnership's obligation to pay the Cash Amount is subject the prior right of the Company to acquire such Partnership Common Units in exchange for either the Cash Amount or shares of the Company's Common Stock.

F4 · derivative.exercise_date: The Company, as the general partner of the UDR Partnership, may, in its sole discretion, purchase the Partnership Common Units by paying the limited partner either the Cash Amount or the REIT Share Amount (generally one share of the Company's Common Stock for each Partnership Common Unit), as such terms are defined in the Partnership Agreement. The right to convert the Class 2 LTIP Units into Partnership Common Units and the right to receive the Cash Amount or the REIT Share Amount (in the Company's sole discretion) in exchange for Partnership Common Units do not have expiration dates.

F5 · derivative.exercise_date: The Class 2 LTIP Units will vest only to the extent that pre-established performance metrics are met for the applicable performance period, subject to continuing employment. Except as otherwise set forth in the UDR, Inc. 1999 Long-Term Incentive Plan, as amended from time to time, except Section 14.9 thereof, the Partnership Agreement, or as determined by the Compensation Committee of the Company's Board of Directors (the "Committee"), in its sole discretion, vesting of the Class 2 LTIP Units shall cease upon the date of termination for any reason other than in the event of a change of control of the Company, and no unvested Class 2 LTIP Units shall thereafter become vested.

F6 · derivative.exercise_date: In the event of a change of control of the Company, the Class 2 LTIP Units will vest only if the holder's employment or other service relationship with the Company is terminated by the Company without cause, or by the holder for good reason, in each case on or within 12 months following the date of a change of control. Further, all restrictions on outstanding awards that have been earned shall lapse upon the Company's termination of the holder's employment without cause or the holder's termination of employment for good reason.

F10 · derivative.exercise_date: The vesting of these Class 2 LTIP Units shall be determined as follows: 30 percent shall be based upon the Committee's subjective determination, in its sole discretion, of the executive officer's performance with respect to individual performance objectives; and 70 percent shall be based on pre-determined financial metrics. These Class 2 LTIP Units will vest upon a determination by the Committee after the completion of the applicable performance period.

F11 · derivative.exercise_date: The portion of these Class 2 LTIP Units that vests based upon the achievement of pre-determined financial metrics shall be determined as follows: 40 percent based on a transactions index goal; 30 percent based on an FFO as Adjusted per share goal; 10 percent based on an operations index goal; 10 percent based on a GRESB percentile goal; and 10 percent based on an associate engagement & DEI goal, each over a one-year period.

F4 · derivative.expiration_date: The Company, as the general partner of the UDR Partnership, may, in its sole discretion, purchase the Partnership Common Units by paying the limited partner either the Cash Amount or the REIT Share Amount (generally one share of the Company's Common Stock for each Partnership Common Unit), as such terms are defined in the Partnership Agreement. The right to convert the Class 2 LTIP Units into Partnership Common Units and the right to receive the Cash Amount or the REIT Share Amount (in the Company's sole discretion) in exchange for Partnership Common Units do not have expiration dates.

F2 · derivative.underlying: Subject to the conditions set forth in the Eleventh Amendment to the Amended and Restated Agreement of Limited Partnership of the UDR Partnership (the "Partnership Agreement") and subject to the vesting conditions specified with respect to each Class 2 LTIP Unit, each Class 2 LTIP Unit may be converted into a unit of limited partnership of the UDR Partnership (a "Partnership Common Unit"), provided that such Class 2 LTIP Unit has been outstanding for at least two years from the date of grant.

F3 · derivative.underlying: A holder of Partnership Common Units has the right to require the UDR Partnership to redeem all or a portion of the Partnership Common Units held by the holder in exchange for a cash payment based on the market value of the Company's Common Stock at the time of redemption, as defined in the Partnership Agreement (the "Cash Amount"). However, the UDR Partnership's obligation to pay the Cash Amount is subject the prior right of the Company to acquire such Partnership Common Units in exchange for either the Cash Amount or shares of the Company's Common Stock.

F4 · derivative.underlying: The Company, as the general partner of the UDR Partnership, may, in its sole discretion, purchase the Partnership Common Units by paying the limited partner either the Cash Amount or the REIT Share Amount (generally one share of the Company's Common Stock for each Partnership Common Unit), as such terms are defined in the Partnership Agreement. The right to convert the Class 2 LTIP Units into Partnership Common Units and the right to receive the Cash Amount or the REIT Share Amount (in the Company's sole discretion) in exchange for Partnership Common Units do not have expiration dates.

F5 · derivative.underlying: The Class 2 LTIP Units will vest only to the extent that pre-established performance metrics are met for the applicable performance period, subject to continuing employment. Except as otherwise set forth in the UDR, Inc. 1999 Long-Term Incentive Plan, as amended from time to time, except Section 14.9 thereof, the Partnership Agreement, or as determined by the Compensation Committee of the Company's Board of Directors (the "Committee"), in its sole discretion, vesting of the Class 2 LTIP Units shall cease upon the date of termination for any reason other than in the event of a change of control of the Company, and no unvested Class 2 LTIP Units shall thereafter become vested.

F6 · derivative.underlying: In the event of a change of control of the Company, the Class 2 LTIP Units will vest only if the holder's employment or other service relationship with the Company is terminated by the Company without cause, or by the holder for good reason, in each case on or within 12 months following the date of a change of control. Further, all restrictions on outstanding awards that have been earned shall lapse upon the Company's termination of the holder's employment without cause or the holder's termination of employment for good reason.

F10 · derivative.underlying: The vesting of these Class 2 LTIP Units shall be determined as follows: 30 percent shall be based upon the Committee's subjective determination, in its sole discretion, of the executive officer's performance with respect to individual performance objectives; and 70 percent shall be based on pre-determined financial metrics. These Class 2 LTIP Units will vest upon a determination by the Committee after the completion of the applicable performance period.

F11 · derivative.underlying: The portion of these Class 2 LTIP Units that vests based upon the achievement of pre-determined financial metrics shall be determined as follows: 40 percent based on a transactions index goal; 30 percent based on an FFO as Adjusted per share goal; 10 percent based on an operations index goal; 10 percent based on a GRESB percentile goal; and 10 percent based on an associate engagement & DEI goal, each over a one-year period.

SEC source: 0001096906-23-000026 · form4.xml · derivative · entry 1

ALCOCK HARRY G · CIK 0001229387 · SVP-Chief Investment Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 393,113

Underlying: Common Stock · 22,532 shares

Expires not disclosed

F1 · security: Represents Class 2 LTIP Units (the "Class 2 LTIP Units") in United Dominion Realty, L.P., a Delaware limited partnership (the "UDR Partnership"). UDR, Inc. (the "Company") is the parent company and sole general partner of the UDR Partnership.

F2 · derivative.exercise_price: Subject to the conditions set forth in the Eleventh Amendment to the Amended and Restated Agreement of Limited Partnership of the UDR Partnership (the "Partnership Agreement") and subject to the vesting conditions specified with respect to each Class 2 LTIP Unit, each Class 2 LTIP Unit may be converted into a unit of limited partnership of the UDR Partnership (a "Partnership Common Unit"), provided that such Class 2 LTIP Unit has been outstanding for at least two years from the date of grant.

F3 · derivative.exercise_price: A holder of Partnership Common Units has the right to require the UDR Partnership to redeem all or a portion of the Partnership Common Units held by the holder in exchange for a cash payment based on the market value of the Company's Common Stock at the time of redemption, as defined in the Partnership Agreement (the "Cash Amount"). However, the UDR Partnership's obligation to pay the Cash Amount is subject the prior right of the Company to acquire such Partnership Common Units in exchange for either the Cash Amount or shares of the Company's Common Stock.

F4 · derivative.exercise_price: The Company, as the general partner of the UDR Partnership, may, in its sole discretion, purchase the Partnership Common Units by paying the limited partner either the Cash Amount or the REIT Share Amount (generally one share of the Company's Common Stock for each Partnership Common Unit), as such terms are defined in the Partnership Agreement. The right to convert the Class 2 LTIP Units into Partnership Common Units and the right to receive the Cash Amount or the REIT Share Amount (in the Company's sole discretion) in exchange for Partnership Common Units do not have expiration dates.

F5 · shares: The Class 2 LTIP Units will vest only to the extent that pre-established performance metrics are met for the applicable performance period, subject to continuing employment. Except as otherwise set forth in the UDR, Inc. 1999 Long-Term Incentive Plan, as amended from time to time, except Section 14.9 thereof, the Partnership Agreement, or as determined by the Compensation Committee of the Company's Board of Directors (the "Committee"), in its sole discretion, vesting of the Class 2 LTIP Units shall cease upon the date of termination for any reason other than in the event of a change of control of the Company, and no unvested Class 2 LTIP Units shall thereafter become vested.

F6 · shares: In the event of a change of control of the Company, the Class 2 LTIP Units will vest only if the holder's employment or other service relationship with the Company is terminated by the Company without cause, or by the holder for good reason, in each case on or within 12 months following the date of a change of control. Further, all restrictions on outstanding awards that have been earned shall lapse upon the Company's termination of the holder's employment without cause or the holder's termination of employment for good reason.

F7 · shares: The vesting of these Class 2 LTIP Units shall be determined as follows: 35 percent shall be based on a goal measured by the Company's relative total shareholder return ("TSR") as compared to an apartment peer group over a three-year cumulative performance period (the "3-Year Relative Apartment Peer TSR Metric"); 30 percent shall be based on the achievement of a pre-determined FFO as Adjusted goal over a one-year period (the "1-Year FFO as Adjusted Metric"); 20 percent shall be determined based on a goal measured by the Company's relative TSR as compared to a REIT peer group over a three-year cumulative performance period (the "3-Year Relative REIT TSR Metric"); and 15 percent shall be based on a goal measured by the Company's relative FFO as Adjusted growth rate as compared to an apartment peer group over a three-year cumulative performance period (the "3-Year Relative FFO as Adjusted Metric").

F8 · shares: The portions of these Class 2 LTIP Units based upon the 3-Year Relative Apartment Peer TSR Metric, the 3-Year Relative REIT TSR Metric and the 3-Year Relative FFO as Adjusted Metric will vest on the date the Committee determines performance (the "Determination Date"). The portion of these Class 2 LTIP Units based upon the 1-Year FFO as Adjusted Metric will vest 50 percent on the Determination Date, and 50 percent on the one year anniversary thereof.

F9 · shares: Amount represents the maximum award (including dividends) that could be earned, which is subject to forfeiture when the performance results are determined.

F2 · derivative.exercise_date: Subject to the conditions set forth in the Eleventh Amendment to the Amended and Restated Agreement of Limited Partnership of the UDR Partnership (the "Partnership Agreement") and subject to the vesting conditions specified with respect to each Class 2 LTIP Unit, each Class 2 LTIP Unit may be converted into a unit of limited partnership of the UDR Partnership (a "Partnership Common Unit"), provided that such Class 2 LTIP Unit has been outstanding for at least two years from the date of grant.

F3 · derivative.exercise_date: A holder of Partnership Common Units has the right to require the UDR Partnership to redeem all or a portion of the Partnership Common Units held by the holder in exchange for a cash payment based on the market value of the Company's Common Stock at the time of redemption, as defined in the Partnership Agreement (the "Cash Amount"). However, the UDR Partnership's obligation to pay the Cash Amount is subject the prior right of the Company to acquire such Partnership Common Units in exchange for either the Cash Amount or shares of the Company's Common Stock.

F4 · derivative.exercise_date: The Company, as the general partner of the UDR Partnership, may, in its sole discretion, purchase the Partnership Common Units by paying the limited partner either the Cash Amount or the REIT Share Amount (generally one share of the Company's Common Stock for each Partnership Common Unit), as such terms are defined in the Partnership Agreement. The right to convert the Class 2 LTIP Units into Partnership Common Units and the right to receive the Cash Amount or the REIT Share Amount (in the Company's sole discretion) in exchange for Partnership Common Units do not have expiration dates.

F5 · derivative.exercise_date: The Class 2 LTIP Units will vest only to the extent that pre-established performance metrics are met for the applicable performance period, subject to continuing employment. Except as otherwise set forth in the UDR, Inc. 1999 Long-Term Incentive Plan, as amended from time to time, except Section 14.9 thereof, the Partnership Agreement, or as determined by the Compensation Committee of the Company's Board of Directors (the "Committee"), in its sole discretion, vesting of the Class 2 LTIP Units shall cease upon the date of termination for any reason other than in the event of a change of control of the Company, and no unvested Class 2 LTIP Units shall thereafter become vested.

F6 · derivative.exercise_date: In the event of a change of control of the Company, the Class 2 LTIP Units will vest only if the holder's employment or other service relationship with the Company is terminated by the Company without cause, or by the holder for good reason, in each case on or within 12 months following the date of a change of control. Further, all restrictions on outstanding awards that have been earned shall lapse upon the Company's termination of the holder's employment without cause or the holder's termination of employment for good reason.

F7 · derivative.exercise_date: The vesting of these Class 2 LTIP Units shall be determined as follows: 35 percent shall be based on a goal measured by the Company's relative total shareholder return ("TSR") as compared to an apartment peer group over a three-year cumulative performance period (the "3-Year Relative Apartment Peer TSR Metric"); 30 percent shall be based on the achievement of a pre-determined FFO as Adjusted goal over a one-year period (the "1-Year FFO as Adjusted Metric"); 20 percent shall be determined based on a goal measured by the Company's relative TSR as compared to a REIT peer group over a three-year cumulative performance period (the "3-Year Relative REIT TSR Metric"); and 15 percent shall be based on a goal measured by the Company's relative FFO as Adjusted growth rate as compared to an apartment peer group over a three-year cumulative performance period (the "3-Year Relative FFO as Adjusted Metric").

F8 · derivative.exercise_date: The portions of these Class 2 LTIP Units based upon the 3-Year Relative Apartment Peer TSR Metric, the 3-Year Relative REIT TSR Metric and the 3-Year Relative FFO as Adjusted Metric will vest on the date the Committee determines performance (the "Determination Date"). The portion of these Class 2 LTIP Units based upon the 1-Year FFO as Adjusted Metric will vest 50 percent on the Determination Date, and 50 percent on the one year anniversary thereof.

F4 · derivative.expiration_date: The Company, as the general partner of the UDR Partnership, may, in its sole discretion, purchase the Partnership Common Units by paying the limited partner either the Cash Amount or the REIT Share Amount (generally one share of the Company's Common Stock for each Partnership Common Unit), as such terms are defined in the Partnership Agreement. The right to convert the Class 2 LTIP Units into Partnership Common Units and the right to receive the Cash Amount or the REIT Share Amount (in the Company's sole discretion) in exchange for Partnership Common Units do not have expiration dates.

F2 · derivative.underlying: Subject to the conditions set forth in the Eleventh Amendment to the Amended and Restated Agreement of Limited Partnership of the UDR Partnership (the "Partnership Agreement") and subject to the vesting conditions specified with respect to each Class 2 LTIP Unit, each Class 2 LTIP Unit may be converted into a unit of limited partnership of the UDR Partnership (a "Partnership Common Unit"), provided that such Class 2 LTIP Unit has been outstanding for at least two years from the date of grant.

F3 · derivative.underlying: A holder of Partnership Common Units has the right to require the UDR Partnership to redeem all or a portion of the Partnership Common Units held by the holder in exchange for a cash payment based on the market value of the Company's Common Stock at the time of redemption, as defined in the Partnership Agreement (the "Cash Amount"). However, the UDR Partnership's obligation to pay the Cash Amount is subject the prior right of the Company to acquire such Partnership Common Units in exchange for either the Cash Amount or shares of the Company's Common Stock.

F4 · derivative.underlying: The Company, as the general partner of the UDR Partnership, may, in its sole discretion, purchase the Partnership Common Units by paying the limited partner either the Cash Amount or the REIT Share Amount (generally one share of the Company's Common Stock for each Partnership Common Unit), as such terms are defined in the Partnership Agreement. The right to convert the Class 2 LTIP Units into Partnership Common Units and the right to receive the Cash Amount or the REIT Share Amount (in the Company's sole discretion) in exchange for Partnership Common Units do not have expiration dates.

F5 · derivative.underlying: The Class 2 LTIP Units will vest only to the extent that pre-established performance metrics are met for the applicable performance period, subject to continuing employment. Except as otherwise set forth in the UDR, Inc. 1999 Long-Term Incentive Plan, as amended from time to time, except Section 14.9 thereof, the Partnership Agreement, or as determined by the Compensation Committee of the Company's Board of Directors (the "Committee"), in its sole discretion, vesting of the Class 2 LTIP Units shall cease upon the date of termination for any reason other than in the event of a change of control of the Company, and no unvested Class 2 LTIP Units shall thereafter become vested.

F6 · derivative.underlying: In the event of a change of control of the Company, the Class 2 LTIP Units will vest only if the holder's employment or other service relationship with the Company is terminated by the Company without cause, or by the holder for good reason, in each case on or within 12 months following the date of a change of control. Further, all restrictions on outstanding awards that have been earned shall lapse upon the Company's termination of the holder's employment without cause or the holder's termination of employment for good reason.

F7 · derivative.underlying: The vesting of these Class 2 LTIP Units shall be determined as follows: 35 percent shall be based on a goal measured by the Company's relative total shareholder return ("TSR") as compared to an apartment peer group over a three-year cumulative performance period (the "3-Year Relative Apartment Peer TSR Metric"); 30 percent shall be based on the achievement of a pre-determined FFO as Adjusted goal over a one-year period (the "1-Year FFO as Adjusted Metric"); 20 percent shall be determined based on a goal measured by the Company's relative TSR as compared to a REIT peer group over a three-year cumulative performance period (the "3-Year Relative REIT TSR Metric"); and 15 percent shall be based on a goal measured by the Company's relative FFO as Adjusted growth rate as compared to an apartment peer group over a three-year cumulative performance period (the "3-Year Relative FFO as Adjusted Metric").

F8 · derivative.underlying: The portions of these Class 2 LTIP Units based upon the 3-Year Relative Apartment Peer TSR Metric, the 3-Year Relative REIT TSR Metric and the 3-Year Relative FFO as Adjusted Metric will vest on the date the Committee determines performance (the "Determination Date"). The portion of these Class 2 LTIP Units based upon the 1-Year FFO as Adjusted Metric will vest 50 percent on the Determination Date, and 50 percent on the one year anniversary thereof.