UDR

SEC source: 0000074208-21-000027 · primary_doc.xml · derivative · entry 1

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 996,123

Underlying: Common Stock · 113,544 shares

Expires not disclosed

F1 · security: Represents 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 and subject to the vesting conditions specified with respect to each Class 2 LTIP Unit (as described in footnotes 5, 6, 7, 8 and 9, below), 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 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 4 below.

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 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.

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 Amended and Restated Agreement of Limited Partnership of the UDR Partnership, 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 the 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: The vesting of a portion of these Class 2 LTIP Units that is measured over a three year performance period ending December 31, 2020 is determined as follows: 35 percent 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"); 20 percent 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 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").

F7 · shares: The portion of these Class 2 LTIP Units for which vesting is based on the 3-Year Relative Apartment Peer TSR Metric, the 3-Year Relative REIT TSR Metric and the 3-Year Relative FFO as Adjusted Metric vest on the date the Committee determines performance (the "Determination Date").

F8 · shares: The vesting of a portion of these Class 2 LTIP Units is determined as follows: 30 percent 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 based on the pre-determined financial metrics for the one year performance period ending December 31, 2020 described in footnote 9 below. These Class 2 LTIP Units vest on the Determination Date.

F9 · 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; 20 percent based on a transaction volume goal; 20 percent based on a controllable Operating NOI goal; 20 percent based on an operating platform execution goal; and 10 percent based on an associate engagement goal, each over a one-year period.

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 18, 2021.

F2 · derivative.exercise_date: Subject to the conditions set forth in the Amended and Restated Agreement of Limited Partnership of the UDR Partnership and subject to the vesting conditions specified with respect to each Class 2 LTIP Unit (as described in footnotes 5, 6, 7, 8 and 9, below), 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 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 4 below.

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 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.

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 Amended and Restated Agreement of Limited Partnership of the UDR Partnership, 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 the 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: The vesting of a portion of these Class 2 LTIP Units that is measured over a three year performance period ending December 31, 2020 is determined as follows: 35 percent 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"); 20 percent 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 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").

F7 · derivative.exercise_date: The portion of these Class 2 LTIP Units for which vesting is based on the 3-Year Relative Apartment Peer TSR Metric, the 3-Year Relative REIT TSR Metric and the 3-Year Relative FFO as Adjusted Metric vest on the date the Committee determines performance (the "Determination Date").

F8 · derivative.exercise_date: The vesting of a portion of these Class 2 LTIP Units is determined as follows: 30 percent 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 based on the pre-determined financial metrics for the one year performance period ending December 31, 2020 described in footnote 9 below. These Class 2 LTIP Units vest on the Determination Date.

F9 · 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; 20 percent based on a transaction volume goal; 20 percent based on a controllable Operating NOI goal; 20 percent based on an operating platform execution goal; and 10 percent based on an associate engagement goal, each over a one-year period.

F10 · derivative.exercise_date: 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 18, 2021.

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 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.

F2 · derivative.underlying: Subject to the conditions set forth in the Amended and Restated Agreement of Limited Partnership of the UDR Partnership and subject to the vesting conditions specified with respect to each Class 2 LTIP Unit (as described in footnotes 5, 6, 7, 8 and 9, below), 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 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 4 below.

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 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: 0000074208-21-000026 · primary_doc.xml · derivative · entry 3

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 371,125

Underlying: Common Stock · 40,672 shares

Expires not disclosed

F2 · security: Represents 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 and subject to the vesting conditions specified with respect to each Class 2 LTIP Unit (as described in footnotes 6, 7, 8, 9 and 10, below), 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 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 5 below.

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 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.

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 Amended and Restated Agreement of Limited Partnership of the UDR Partnership, 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 the 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: The vesting of a portion of these Class 2 LTIP Units that is measured over a three year performance period ending December 31, 2020 is determined as follows: 35 percent 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"); 20 percent 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 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 portion of these Class 2 LTIP Units for which vesting is based on the 3-Year Relative Apartment Peer TSR Metric, the 3-Year Relative REIT TSR Metric and the 3-Year Relative FFO as Adjusted Metric vest on the date the Committee determines performance (the "Determination Date").

F9 · shares: The vesting of a portion of these Class 2 LTIP Units is determined as follows: 30 percent 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 based on the pre-determined financial metrics for the one year performance period ending December 31, 2020 described in footnote 10 below. These Class 2 LTIP Units vest on the Determination Date.

F10 · 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 transaction volume goal; 30 percent based on an FFO as Adjusted per share goal; 20 percent based on an acquisition NOI goal; and 10 percent based on an associate engagement goal, each over a one-year period.

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 18, 2021.

F3 · derivative.exercise_date: Subject to the conditions set forth in the Amended and Restated Agreement of Limited Partnership of the UDR Partnership and subject to the vesting conditions specified with respect to each Class 2 LTIP Unit (as described in footnotes 6, 7, 8, 9 and 10, below), 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 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 5 below.

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 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.

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 Amended and Restated Agreement of Limited Partnership of the UDR Partnership, 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 the 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: The vesting of a portion of these Class 2 LTIP Units that is measured over a three year performance period ending December 31, 2020 is determined as follows: 35 percent 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"); 20 percent 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 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 portion of these Class 2 LTIP Units for which vesting is based on the 3-Year Relative Apartment Peer TSR Metric, the 3-Year Relative REIT TSR Metric and the 3-Year Relative FFO as Adjusted Metric vest on the date the Committee determines performance (the "Determination Date").

F9 · derivative.exercise_date: The vesting of a portion of these Class 2 LTIP Units is determined as follows: 30 percent 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 based on the pre-determined financial metrics for the one year performance period ending December 31, 2020 described in footnote 10 below. These Class 2 LTIP Units vest on the Determination Date.

F10 · 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 transaction volume goal; 30 percent based on an FFO as Adjusted per share goal; 20 percent based on an acquisition NOI goal; and 10 percent based on an associate engagement goal, each over a one-year period.

F11 · derivative.exercise_date: 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 18, 2021.

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 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.

F3 · derivative.underlying: Subject to the conditions set forth in the Amended and Restated Agreement of Limited Partnership of the UDR Partnership and subject to the vesting conditions specified with respect to each Class 2 LTIP Unit (as described in footnotes 6, 7, 8, 9 and 10, below), 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 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 5 below.

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 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: 0000074208-21-000026 · primary_doc.xml · nonDerivative · entry 2

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 82,667

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: 0000074208-21-000026 · primary_doc.xml · nonDerivative · entry 1

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 87,876

SEC source: 0001225208-21-002051 · doc4.xml · nonDerivative · entry 1

Fisher Joseph D · CIK 0001691531 · SVP-CFO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 35,486

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: 0001225208-21-002050 · doc4.xml · nonDerivative · entry 1

Lacy Michael D · CIK 0001827142 · SVP-Property Operations

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 7,123

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: 0001225208-21-002048 · doc4.xml · nonDerivative · entry 1

Davis Jerry A · CIK 0001419048 · President-COO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 169,819

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: 0001225208-21-002035 · doc4.xml · nonDerivative · entry 1

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 76,010

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: 0001225208-21-000898 · doc4.xml · nonDerivative · entry 1

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,251,226

F1 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $38.80 to $38.895, 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: 0000074208-21-000011 · primary_doc.xml · derivative · entry 2

Cozad Matthew A · CIK 0001564714 · SVP-Corp Services & Innovation

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 149,532

Underlying: Common Stock · 149,532 shares

Expires 2031-01-04

F9 · 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 and subject to the vesting conditions specified with respect to each Class 2 LTIP Unit (as described in footnotes 5, 6 and 7, below), 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 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 4 below.

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 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.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 footnotes 12, 13 & 14, below) and (ii) before the expiration date of the Class 2 Performance LTIP Unit. Each Class 2 LTIP Unit may be converted, at the election of the holder, into a Partnership Common Unit as described in footnote 2.

F11 · 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.

F8 · 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: 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 footnotes 12, 13 & 14, below) and (ii) before the expiration date of the Class 2 Performance LTIP Unit. Each Class 2 LTIP Unit may be converted, at the election of the holder, into a Partnership Common Unit as described in footnote 2.

F11 · shares: 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.

F12 · 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 Amended and Restated Agreement of Limited Partnership of the UDR Partnership, 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, and no unvested Class 2 Performance LTIP Units shall thereafter become vested.

F13 · 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 described in footnote 14 below. These Class 2 Performance LTIP Units will vest upon a determination by the Committee after the completion of the applicable performance period.

F14 · shares: The portion of these Class 2 Performance LTIP Units that vests based upon the achievement of pre-determined financial metrics shall be determined as follows: 30 percent based on an FFO as Adjusted per share goal; 30 percent based on a same store wins goal; 20 percent based on an operating platform execution goal; 10 percent based on an ESG & DEI goal; and 10 percent based on an associate engagement 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 and subject to the vesting conditions specified with respect to each Class 2 LTIP Unit (as described in footnotes 5, 6 and 7, below), 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 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 4 below.

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 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.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 footnotes 12, 13 & 14, below) and (ii) before the expiration date of the Class 2 Performance LTIP Unit. Each Class 2 LTIP Unit may be converted, at the election of the holder, into a Partnership Common Unit as described in footnote 2.

F11 · 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.

F12 · 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 Amended and Restated Agreement of Limited Partnership of the UDR Partnership, 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, and no unvested Class 2 Performance LTIP Units shall thereafter become vested.

F13 · 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 described in footnote 14 below. These Class 2 Performance LTIP Units will vest upon a determination by the Committee after the completion of the applicable performance period.

F14 · derivative.exercise_date: The portion of these Class 2 Performance LTIP Units that vests based upon the achievement of pre-determined financial metrics shall be determined as follows: 30 percent based on an FFO as Adjusted per share goal; 30 percent based on a same store wins goal; 20 percent based on an operating platform execution goal; 10 percent based on an ESG & DEI goal; and 10 percent based on an associate engagement 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 and subject to the vesting conditions specified with respect to each Class 2 LTIP Unit (as described in footnotes 5, 6 and 7, below), 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 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 4 below.

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 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: 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 footnotes 12, 13 & 14, below) and (ii) before the expiration date of the Class 2 Performance LTIP Unit. Each Class 2 LTIP Unit may be converted, at the election of the holder, into a Partnership Common Unit as described in footnote 2.

F11 · 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.

F12 · 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 Amended and Restated Agreement of Limited Partnership of the UDR Partnership, 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, and no unvested Class 2 Performance LTIP Units shall thereafter become vested.

F13 · 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 described in footnote 14 below. These Class 2 Performance LTIP Units will vest upon a determination by the Committee after the completion of the applicable performance period.

F14 · derivative.underlying: The portion of these Class 2 Performance LTIP Units that vests based upon the achievement of pre-determined financial metrics shall be determined as follows: 30 percent based on an FFO as Adjusted per share goal; 30 percent based on a same store wins goal; 20 percent based on an operating platform execution goal; 10 percent based on an ESG & DEI goal; and 10 percent based on an associate engagement goal, each over a one-year period.

SEC source: 0000074208-21-000011 · primary_doc.xml · derivative · entry 1

Cozad Matthew A · CIK 0001564714 · SVP-Corp Services & Innovation

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 51,459

Underlying: Common Stock · 24,490 shares

Expires not disclosed

F1 · security: Represents 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 and subject to the vesting conditions specified with respect to each Class 2 LTIP Unit (as described in footnotes 5, 6 and 7, below), 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 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 4 below.

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 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.

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 Amended and Restated Agreement of Limited Partnership of the UDR Partnership, 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, and no unvested Class 2 LTIP Units shall thereafter become vested.

F6 · 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").

F7 · 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 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.

F8 · 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 and subject to the vesting conditions specified with respect to each Class 2 LTIP Unit (as described in footnotes 5, 6 and 7, below), 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 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 4 below.

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 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.

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 Amended and Restated Agreement of Limited Partnership of the UDR Partnership, 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, and no unvested Class 2 LTIP Units shall thereafter become vested.

F6 · 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").

F7 · 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 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.

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 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.

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 and subject to the vesting conditions specified with respect to each Class 2 LTIP Unit (as described in footnotes 5, 6 and 7, below), 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 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 4 below.

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 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: 0000074208-21-000012 · primary_doc.xml · derivative · entry 6

Lacy Michael D · CIK 0001827142 · SVP-Property Operations

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 184,580

Underlying: Common Stock · 51,402 shares

Expires 2031-01-04

F10 · security: Represents Class 2 Performance LTIP Units in 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 and subject to the vesting conditions specified with respect to each Class 2 LTIP Unit (as described in footnotes 6, 7 and 8 below), 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 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 5 below.

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 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.

F11 · 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 footnotes 13, 14, 15, 16 & 17 below) and (ii) before the expiration date of the Class 2 Performance LTIP Unit. Each Class 2 LTIP Unit may be converted, at the election of the holder, into a Partnership Common Unit as described in footnote 3.

F12 · 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.

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

F13 · 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 Amended and Restated Agreement of Limited Partnership of the UDR Partnership, 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, and no unvested Class 2 Performance LTIP Units shall thereafter become vested.

F16 · 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 described in footnote 17 below. These Class 2 Performance LTIP Units will vest upon a determination by the Committee after the completion of the applicable performance period.

F17 · shares: The portion of these Class 2 Performance LTIP Units that vests based upon the achievement of pre-determined financial metrics shall be determined as follows: 30 percent based on an FFO as Adjusted per share goal; 30 percent based on a same store wins goal; 20 percent based on an operating platform execution goal; 10 percent based on an ESG & DEI goal; and 10 percent based on an associate engagement 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 and subject to the vesting conditions specified with respect to each Class 2 LTIP Unit (as described in footnotes 6, 7 and 8 below), 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 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 5 below.

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 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.

F11 · 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 footnotes 13, 14, 15, 16 & 17 below) and (ii) before the expiration date of the Class 2 Performance LTIP Unit. Each Class 2 LTIP Unit may be converted, at the election of the holder, into a Partnership Common Unit as described in footnote 3.

F12 · 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.

F13 · 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 Amended and Restated Agreement of Limited Partnership of the UDR Partnership, 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, and no unvested Class 2 Performance LTIP Units shall thereafter become vested.

F16 · 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 described in footnote 17 below. These Class 2 Performance LTIP Units will vest upon a determination by the Committee after the completion of the applicable performance period.

F17 · derivative.exercise_date: The portion of these Class 2 Performance LTIP Units that vests based upon the achievement of pre-determined financial metrics shall be determined as follows: 30 percent based on an FFO as Adjusted per share goal; 30 percent based on a same store wins goal; 20 percent based on an operating platform execution goal; 10 percent based on an ESG & DEI goal; and 10 percent based on an associate engagement goal, each over a one-year period.

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 and subject to the vesting conditions specified with respect to each Class 2 LTIP Unit (as described in footnotes 6, 7 and 8 below), 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 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 5 below.

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 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.

F13 · 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 Amended and Restated Agreement of Limited Partnership of the UDR Partnership, 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, and no unvested Class 2 Performance LTIP Units shall thereafter become vested.

F16 · 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 described in footnote 17 below. These Class 2 Performance LTIP Units will vest upon a determination by the Committee after the completion of the applicable performance period.

F17 · derivative.underlying: The portion of these Class 2 Performance LTIP Units that vests based upon the achievement of pre-determined financial metrics shall be determined as follows: 30 percent based on an FFO as Adjusted per share goal; 30 percent based on a same store wins goal; 20 percent based on an operating platform execution goal; 10 percent based on an ESG & DEI goal; and 10 percent based on an associate engagement goal, each over a one-year period.

SEC source: 0000074208-21-000012 · primary_doc.xml · derivative · entry 5

Lacy Michael D · CIK 0001827142 · SVP-Property Operations

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 133,178

Underlying: Common Stock · 133,178 shares

Expires 2031-01-04

F10 · security: Represents Class 2 Performance LTIP Units in 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 and subject to the vesting conditions specified with respect to each Class 2 LTIP Unit (as described in footnotes 6, 7 and 8 below), 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 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 5 below.

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 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.

F11 · 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 footnotes 13, 14, 15, 16 & 17 below) and (ii) before the expiration date of the Class 2 Performance LTIP Unit. Each Class 2 LTIP Unit may be converted, at the election of the holder, into a Partnership Common Unit as described in footnote 3.

F12 · 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.

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

F13 · 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 Amended and Restated Agreement of Limited Partnership of the UDR Partnership, 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, and no unvested Class 2 Performance LTIP Units shall thereafter become vested.

F14 · 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 3-Year Relative Apartment Peer TSR Metric; 30 percent shall be based on the 1-Year FFO as Adjusted Metric; 20 percent shall be determined based on the 3-Year Relative REIT TSR Metric; and 15 percent shall be based on the 3-Year Relative FFO as Adjusted Metric.

F15 · 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 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 and subject to the vesting conditions specified with respect to each Class 2 LTIP Unit (as described in footnotes 6, 7 and 8 below), 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 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 5 below.

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 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.

F11 · 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 footnotes 13, 14, 15, 16 & 17 below) and (ii) before the expiration date of the Class 2 Performance LTIP Unit. Each Class 2 LTIP Unit may be converted, at the election of the holder, into a Partnership Common Unit as described in footnote 3.

F12 · 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.

F13 · 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 Amended and Restated Agreement of Limited Partnership of the UDR Partnership, 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, and no unvested Class 2 Performance LTIP Units shall thereafter become vested.

F14 · 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 3-Year Relative Apartment Peer TSR Metric; 30 percent shall be based on the 1-Year FFO as Adjusted Metric; 20 percent shall be determined based on the 3-Year Relative REIT TSR Metric; and 15 percent shall be based on the 3-Year Relative FFO as Adjusted Metric.

F15 · 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 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 and subject to the vesting conditions specified with respect to each Class 2 LTIP Unit (as described in footnotes 6, 7 and 8 below), 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 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 5 below.

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 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.

F13 · 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 Amended and Restated Agreement of Limited Partnership of the UDR Partnership, 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, and no unvested Class 2 Performance LTIP Units shall thereafter become vested.

F14 · 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 3-Year Relative Apartment Peer TSR Metric; 30 percent shall be based on the 1-Year FFO as Adjusted Metric; 20 percent shall be determined based on the 3-Year Relative REIT TSR Metric; and 15 percent shall be based on the 3-Year Relative FFO as Adjusted Metric.

F15 · 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 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: 0000074208-21-000012 · primary_doc.xml · derivative · entry 4

Lacy Michael D · CIK 0001827142 · SVP-Property Operations

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 26,311

Underlying: Common Stock · 7,752 shares

Expires not disclosed

F2 · security: Represents 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 and subject to the vesting conditions specified with respect to each Class 2 LTIP Unit (as described in footnotes 6, 7 and 8 below), 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 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 5 below.

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 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.

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 Amended and Restated Agreement of Limited Partnership of the UDR Partnership, 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, and no unvested Class 2 LTIP Units shall thereafter become vested.

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 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.

F9 · 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 and subject to the vesting conditions specified with respect to each Class 2 LTIP Unit (as described in footnotes 6, 7 and 8 below), 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 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 5 below.

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 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.

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 Amended and Restated Agreement of Limited Partnership of the UDR Partnership, 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, and no unvested Class 2 LTIP Units shall thereafter become vested.

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 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.

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 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.

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 and subject to the vesting conditions specified with respect to each Class 2 LTIP Unit (as described in footnotes 6, 7 and 8 below), 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 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 5 below.

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 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: 0000074208-21-000012 · primary_doc.xml · nonDerivative · entry 3

Lacy Michael D · CIK 0001827142 · SVP-Property Operations

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 7,420

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: 0000074208-21-000012 · primary_doc.xml · nonDerivative · entry 2

Lacy Michael D · CIK 0001827142 · SVP-Property Operations

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 7,651

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: 0000074208-21-000012 · primary_doc.xml · nonDerivative · entry 1

Lacy Michael D · CIK 0001827142 · SVP-Property Operations

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 7,961

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: 0000074208-21-000009 · primary_doc.xml · derivative · entry 3

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 439,252

Underlying: Common Stock · 205,608 shares

Expires 2031-01-04

F9 · 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 and subject to the vesting conditions specified with respect to each Class 2 LTIP Unit (as described in footnotes 5, 6 and 7, below), 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 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 4 below.

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 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.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 footnotes 12, 13, 14, 15 & 16 below) and (ii) before the expiration date of the Class 2 Performance LTIP Unit. Each Class 2 LTIP Unit may be converted, at the election of the holder, into a Partnership Common Unit as described in footnote 2.

F11 · 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.

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

F12 · 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 Amended and Restated Agreement of Limited Partnership of the UDR Partnership, 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, and no unvested Class 2 Performance LTIP Units shall thereafter become vested.

F15 · 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 described in footnote 16 below. These Class 2 Performance LTIP Units will vest upon a determination by the Committee after the completion of the applicable performance period.

F16 · shares: The portion of these Class 2 Performance LTIP Units that vests based upon the achievement of pre-determined financial metrics shall be determined as follows: 30 percent based on an FFO as Adjusted per share goal; 30 percent based on a transaction volume goal; 20 percent based on a transaction FFO as Adjusted goal; 10 percent based on an ESG & DEI goal; and 10 percent based on an associate engagement 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 and subject to the vesting conditions specified with respect to each Class 2 LTIP Unit (as described in footnotes 5, 6 and 7, below), 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 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 4 below.

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 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.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 footnotes 12, 13, 14, 15 & 16 below) and (ii) before the expiration date of the Class 2 Performance LTIP Unit. Each Class 2 LTIP Unit may be converted, at the election of the holder, into a Partnership Common Unit as described in footnote 2.

F11 · 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.

F12 · 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 Amended and Restated Agreement of Limited Partnership of the UDR Partnership, 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, and no unvested Class 2 Performance LTIP Units shall thereafter become vested.

F15 · 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 described in footnote 16 below. These Class 2 Performance LTIP Units will vest upon a determination by the Committee after the completion of the applicable performance period.

F16 · derivative.exercise_date: The portion of these Class 2 Performance LTIP Units that vests based upon the achievement of pre-determined financial metrics shall be determined as follows: 30 percent based on an FFO as Adjusted per share goal; 30 percent based on a transaction volume goal; 20 percent based on a transaction FFO as Adjusted goal; 10 percent based on an ESG & DEI goal; and 10 percent based on an associate engagement 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 and subject to the vesting conditions specified with respect to each Class 2 LTIP Unit (as described in footnotes 5, 6 and 7, below), 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 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 4 below.

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 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.

F12 · 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 Amended and Restated Agreement of Limited Partnership of the UDR Partnership, 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, and no unvested Class 2 Performance LTIP Units shall thereafter become vested.

F15 · 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 described in footnote 16 below. These Class 2 Performance LTIP Units will vest upon a determination by the Committee after the completion of the applicable performance period.

F16 · derivative.underlying: The portion of these Class 2 Performance LTIP Units that vests based upon the achievement of pre-determined financial metrics shall be determined as follows: 30 percent based on an FFO as Adjusted per share goal; 30 percent based on a transaction volume goal; 20 percent based on a transaction FFO as Adjusted goal; 10 percent based on an ESG & DEI goal; and 10 percent based on an associate engagement goal, each over a one-year period.

SEC source: 0000074208-21-000009 · primary_doc.xml · derivative · entry 2

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 233,644

Underlying: Common Stock · 233,644 shares

Expires 2031-01-04

F9 · 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 and subject to the vesting conditions specified with respect to each Class 2 LTIP Unit (as described in footnotes 5, 6 and 7, below), 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 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 4 below.

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 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.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 footnotes 12, 13, 14, 15 & 16 below) and (ii) before the expiration date of the Class 2 Performance LTIP Unit. Each Class 2 LTIP Unit may be converted, at the election of the holder, into a Partnership Common Unit as described in footnote 2.

F11 · 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.

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

F12 · 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 Amended and Restated Agreement of Limited Partnership of the UDR Partnership, 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, and no unvested Class 2 Performance LTIP Units shall thereafter become vested.

F13 · 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 3-Year Relative Apartment Peer TSR Metric; 30 percent shall be based on the 1-Year FFO as Adjusted Metric; 20 percent shall be determined based on the 3-Year Relative REIT TSR Metric; and 15 percent shall be based on the 3-Year Relative FFO as Adjusted Metric.

F14 · 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 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 and subject to the vesting conditions specified with respect to each Class 2 LTIP Unit (as described in footnotes 5, 6 and 7, below), 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 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 4 below.

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 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.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 footnotes 12, 13, 14, 15 & 16 below) and (ii) before the expiration date of the Class 2 Performance LTIP Unit. Each Class 2 LTIP Unit may be converted, at the election of the holder, into a Partnership Common Unit as described in footnote 2.

F11 · 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.

F12 · 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 Amended and Restated Agreement of Limited Partnership of the UDR Partnership, 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, and no unvested Class 2 Performance LTIP Units shall thereafter become vested.

F13 · 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 3-Year Relative Apartment Peer TSR Metric; 30 percent shall be based on the 1-Year FFO as Adjusted Metric; 20 percent shall be determined based on the 3-Year Relative REIT TSR Metric; and 15 percent shall be based on the 3-Year Relative FFO as Adjusted Metric.

F14 · 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 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 and subject to the vesting conditions specified with respect to each Class 2 LTIP Unit (as described in footnotes 5, 6 and 7, below), 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 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 4 below.

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 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.

F12 · 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 Amended and Restated Agreement of Limited Partnership of the UDR Partnership, 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, and no unvested Class 2 Performance LTIP Units shall thereafter become vested.

F13 · 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 3-Year Relative Apartment Peer TSR Metric; 30 percent shall be based on the 1-Year FFO as Adjusted Metric; 20 percent shall be determined based on the 3-Year Relative REIT TSR Metric; and 15 percent shall be based on the 3-Year Relative FFO as Adjusted Metric.

F14 · 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 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: 0000074208-21-000009 · primary_doc.xml · derivative · entry 1

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 411,797

Underlying: Common Stock · 40,806 shares

Expires not disclosed

F1 · security: Represents 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 and subject to the vesting conditions specified with respect to each Class 2 LTIP Unit (as described in footnotes 5, 6 and 7, below), 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 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 4 below.

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 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.

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 Amended and Restated Agreement of Limited Partnership of the UDR Partnership, 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, and no unvested Class 2 LTIP Units shall thereafter become vested.

F6 · 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").

F7 · 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 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.

F8 · 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 and subject to the vesting conditions specified with respect to each Class 2 LTIP Unit (as described in footnotes 5, 6 and 7, below), 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 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 4 below.

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 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.

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 Amended and Restated Agreement of Limited Partnership of the UDR Partnership, 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, and no unvested Class 2 LTIP Units shall thereafter become vested.

F6 · 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").

F7 · 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 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.

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 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.

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 and subject to the vesting conditions specified with respect to each Class 2 LTIP Unit (as described in footnotes 5, 6 and 7, below), 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 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 4 below.

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 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: 0000074208-21-000010 · primary_doc.xml · derivative · entry 6

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 35,046

Underlying: Common Stock · 35,046 shares

Expires 2031-01-04

F3 · security: Represents Class Performance 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.

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, 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 10, 11 & 12 below) and (ii) before the expiration date of the Class 2 Performance LTIP Unit.

F5 · 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.

F6 · 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.

F7 · 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 8 below.

F8 · 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.

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 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 Amended and Restated Agreement of Limited Partnership of the UDR Partnership, or as determined by 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, and no unvested Class 2 Performance LTIP Units shall thereafter become vested.

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.

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, 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 10, 11 & 12 below) and (ii) before the expiration date of the Class 2 Performance LTIP Unit.

F5 · 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.

F6 · 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.

F7 · 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 8 below.

F8 · 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.

F10 · 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 Amended and Restated Agreement of Limited Partnership of the UDR Partnership, or as determined by 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, and no unvested Class 2 Performance LTIP Units shall thereafter become vested.

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.

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, 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 10, 11 & 12 below) and (ii) before the expiration date of the Class 2 Performance LTIP Unit.

F5 · 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.

F6 · 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.

F7 · 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 8 below.

F8 · 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: 0000074208-21-000010 · primary_doc.xml · nonDerivative · entry 5

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 11,794

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: 0000074208-21-000010 · primary_doc.xml · nonDerivative · entry 4

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 11,989

F2 · kind: Subject to the reporting person's continued employment, the grant vests in equal installments over 3 years from the grant date.

SEC source: 0000074208-21-000010 · primary_doc.xml · nonDerivative · entry 3

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 10,282

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: 0000074208-21-000010 · primary_doc.xml · nonDerivative · entry 2

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 10,545

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: 0000074208-21-000010 · primary_doc.xml · nonDerivative · entry 1

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 10,785

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: 0000074208-21-000008 · primary_doc.xml · derivative · entry 3

Fisher Joseph D · CIK 0001691531 · SVP-Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 878,504

Underlying: Common Stock · 411,214 shares

Expires 2031-01-04

F2 · security: Represents Class Performance 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, 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 & 13, 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 Amended and Restated Agreement of Limited Partnership of the UDR Partnership.

F5 · 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.

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 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 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 Amended and Restated Agreement of Limited Partnership of the UDR Partnership, or as determined by 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, and no unvested Class 2 Performance LTIP Units shall thereafter become vested.

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 described in footnote 13 below. 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 Performance LTIP Units that vests based upon the achievement of pre-determined financial metrics shall be determined as follows: 30 percent based on an FFO as Adjusted per share goal; 15 percent based on a transaction volume goal; 15 percent based on a same store wins goal; 10 percent based on a transaction FFO as Adjusted goal; 10 percent based on an operating platform execution goal; 10 percent based on an ESG & DEI goal; and 10 percent based on an associate engagement 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, 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 & 13, 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 Amended and Restated Agreement of Limited Partnership of the UDR Partnership.

F5 · 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.

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 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 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 Amended and Restated Agreement of Limited Partnership of the UDR Partnership, or as determined by 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, and no unvested Class 2 Performance LTIP Units shall thereafter become vested.

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 described in footnote 13 below. 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 Performance LTIP Units that vests based upon the achievement of pre-determined financial metrics shall be determined as follows: 30 percent based on an FFO as Adjusted per share goal; 15 percent based on a transaction volume goal; 15 percent based on a same store wins goal; 10 percent based on a transaction FFO as Adjusted goal; 10 percent based on an operating platform execution goal; 10 percent based on an ESG & DEI goal; and 10 percent based on an associate engagement goal, each over a one-year period.

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, 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 & 13, 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 Amended and Restated Agreement of Limited Partnership of the UDR Partnership.

F5 · 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.

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 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 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.

SEC source: 0000074208-21-000008 · primary_doc.xml · derivative · entry 2

Fisher Joseph D · CIK 0001691531 · SVP-Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 467,290

Underlying: Common Stock · 467,290 shares

Expires 2031-01-04

F2 · security: Represents Class Performance 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, 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 & 13, 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 Amended and Restated Agreement of Limited Partnership of the UDR Partnership.

F5 · 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.

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 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 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 Amended and Restated Agreement of Limited Partnership of the UDR Partnership, or as determined by 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, and no unvested Class 2 Performance LTIP Units shall thereafter become vested.

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.

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, 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 & 13, 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 Amended and Restated Agreement of Limited Partnership of the UDR Partnership.

F5 · 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.

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 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 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 Amended and Restated Agreement of Limited Partnership of the UDR Partnership, or as determined by 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, and no unvested Class 2 Performance LTIP Units shall thereafter become vested.

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.

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, 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 & 13, 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 Amended and Restated Agreement of Limited Partnership of the UDR Partnership.

F5 · 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.

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 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 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.

SEC source: 0000074208-21-000008 · primary_doc.xml · nonDerivative · entry 1

Fisher Joseph D · CIK 0001691531 · SVP-Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 36,079

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: 0000074208-21-000007 · primary_doc.xml · derivative · entry 3

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 2,093,458

Underlying: Common Stock · 523,364 shares

Expires 2031-01-04

F1 · security: Represents Class Performance 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, 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 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: 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 Amended and Restated Agreement of Limited Partnership of the UDR Partnership, or as determined by 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, and no unvested Class 2 Performance LTIP Units shall thereafter become vested.

F11 · 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 described in footnote 12 below. These Class 2 Performance 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: 30 percent based on an FFO as Adjusted per share goal; 20 percent based on an operating platform execution goal; 20 percent based on a same store wins goal; 10 percent based on a transaction volume goal; 10 percent based on an ESG & DEI goal; and 10 percent based on an associate engagement 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, 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 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.

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 Amended and Restated Agreement of Limited Partnership of the UDR Partnership, or as determined by 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, and no unvested Class 2 Performance LTIP Units shall thereafter become vested.

F11 · 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 described in footnote 12 below. These Class 2 Performance 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: 30 percent based on an FFO as Adjusted per share goal; 20 percent based on an operating platform execution goal; 20 percent based on a same store wins goal; 10 percent based on a transaction volume goal; 10 percent based on an ESG & DEI goal; and 10 percent based on an associate engagement 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, 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 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: 0000074208-21-000007 · primary_doc.xml · derivative · entry 2

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,570,094

Underlying: Common Stock · 1,570,094 shares

Expires 2031-01-04

F1 · security: Represents Class Performance 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, 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 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: 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 Amended and Restated Agreement of Limited Partnership of the UDR Partnership, or as determined by 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, and no unvested Class 2 Performance LTIP Units shall thereafter become vested.

F9 · 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").

F10 · 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, 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 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.

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 Amended and Restated Agreement of Limited Partnership of the UDR Partnership, or as determined by 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, and no unvested Class 2 Performance LTIP Units shall thereafter become vested.

F9 · 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").

F10 · 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, 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 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: 0000074208-21-000007 · primary_doc.xml · nonDerivative · entry 1

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,371,226

SEC source: 0000074208-21-000006 · primary_doc.xml · derivative · entry 1

Patterson Mark R · CIK 0001500081 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 29,907

Underlying: Common Stock · 29,907 shares

Expires 2031-01-04

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, 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 (as described in footnote 7, below) 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 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 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 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 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 4, 2022.

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 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 (as described in footnote 7, below) 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 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 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 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 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 4, 2022.

SEC source: 0000074208-21-000005 · primary_doc.xml · derivative · entry 1

Morefield Diane M · CIK 0001487292 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 29,907

Underlying: Common Stock · 29,907 shares

Expires 2031-01-04

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, 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 (as described in footnote 7, below) 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 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 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 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 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 4, 2022.

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 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 (as described in footnote 7, below) 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 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 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 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 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 4, 2022.

SEC source: 0000074208-21-000004 · primary_doc.xml · derivative · entry 1

McDonnough Clinton D · CIK 0001663049 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 47,664

Underlying: Common Stock · 47,664 shares

Expires 2031-01-04

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, 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 (as described in footnote 7, below) 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 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 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 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 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 4, 2022.

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 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 (as described in footnote 7, below) 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 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 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 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 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 4, 2022.

SEC source: 0000074208-21-000002 · primary_doc.xml · derivative · entry 1

King Mary Ann · CIK 0001648077 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 35,446

Underlying: Common Stock · 6,513 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 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 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 4 below.

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 Amended and Restated Agreement of Limited Partnership of the UDR Partnership. 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 4, 2022.

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 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 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 4 below.

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 Amended and Restated Agreement of Limited Partnership of the UDR Partnership. 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 4, 2022.

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 Amended and Restated Agreement of Limited Partnership of the UDR Partnership. 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.

SEC source: 0000074208-21-000003 · primary_doc.xml · derivative · entry 1

KLINGBEIL JAMES D · CIK 0001195692 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 65,421

Underlying: Common Stock · 65,421 shares

Expires 2031-01-04

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, 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 (as described in footnote 7, below) 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 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 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 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 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 4, 2022.

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 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 (as described in footnote 7, below) 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 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 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 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 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 4, 2022.

SEC source: 0001225208-21-000533 · doc4.xml · nonDerivative · entry 1

MCNAMARA ROBERT A · CIK 0001194760 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 21,993

SEC source: 0000074208-21-000001 · primary_doc.xml · derivative · entry 1

GROVE JON A · CIK 0001195691 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 44,860

Underlying: Common Stock · 44,860 shares

Expires 2031-01-04

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, 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 (as described in footnote 7, below) 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 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 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 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 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 4, 2022.

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 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 (as described in footnote 7, below) 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 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 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 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 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 4, 2022.

SEC source: 0001225208-21-000518 · doc4.xml · nonDerivative · entry 1

CATTANACH KATHERINE A · CIK 0001359435 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 74,028

SEC source: 0001225208-21-002473 · doc5.xml · nonDerivative · entry 1

CATTANACH KATHERINE A · CIK 0001359435 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 72,291

F1 · shares: Shares acquired through Dividend Reinvestment.

SEC source: 0001225208-21-002472 · doc5.xml · nonDerivative · entry 1

Davis Jerry A · CIK 0001419048 · President-COO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 170,565

F1 · shares: Shares acquired through Dividend Reinvestment.

SEC source: 0001664272-25-000102 · f5_a1eus000003tlhvmay-live.xml · nonDerivative · entry 5

Lacy Michael D · CIK 0001827142 · COO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 9,050

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: 0001225208-21-002474 · doc5.xml · nonDerivative · entry 1

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,463,726

SEC source: 0001225208-21-002475 · doc5.xml · nonDerivative · entry 1

KLINGBEIL JAMES D · CIK 0001195692 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 146,093

SEC source: 0001225208-20-013465 · doc4.xml · nonDerivative · entry 1

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,471,226

SEC source: 0001225208-20-012444 · doc4.xml · nonDerivative · entry 1

Morefield Diane M · CIK 0001487292 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,556

SEC source: 0001225208-20-009773 · doc4.xml · nonDerivative · entry 1

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 10,904

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: 0001225208-20-008713 · doc4.xml · nonDerivative · entry 1

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 77,261

SEC source: 0001225208-20-008684 · doc4.xml · nonDerivative · entry 1

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,501,226

F1 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $40.51 to $40.86, 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.