BUDORICK STEPHEN E

SEC source: 0001169452-26-000004 · form4-03032026_100335.xml · derivative · entry 1

BUDORICK STEPHEN E · CIK 0001169452 · Director · PRESIDENT/CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,124,411

Underlying: Common Shares · 61,114 shares

Expires not disclosed

F1 · derivative.exercise_price: Each Profit Interest Unit will convert automatically into one share of beneficial interest, designated as a unit (an "OP Unit"), in COPT Defense Properties, L.P. when such Profit Interest Unit becomes vested and upon equalization of its capital account balance. OP Units are redeemable for cash, or, at the option of COPT Defense Properties, exchangeable for common shares of COPT Defense Properties, currently on a one-for-one basis.

F2 · shares: Represents Profit Interest Units issued pursuant to the COPT Defense Properties 2017 Omnibus Equity and Incentive Plan.

F1 · derivative.exercise_date: Each Profit Interest Unit will convert automatically into one share of beneficial interest, designated as a unit (an "OP Unit"), in COPT Defense Properties, L.P. when such Profit Interest Unit becomes vested and upon equalization of its capital account balance. OP Units are redeemable for cash, or, at the option of COPT Defense Properties, exchangeable for common shares of COPT Defense Properties, currently on a one-for-one basis.

F3 · derivative.exercise_date: The Profit Interest Units will vest in three equal installments over a three-year period.

F1 · derivative.expiration_date: Each Profit Interest Unit will convert automatically into one share of beneficial interest, designated as a unit (an "OP Unit"), in COPT Defense Properties, L.P. when such Profit Interest Unit becomes vested and upon equalization of its capital account balance. OP Units are redeemable for cash, or, at the option of COPT Defense Properties, exchangeable for common shares of COPT Defense Properties, currently on a one-for-one basis.

SEC source: 0001169452-26-000002 · form4-02062026_040231.xml · derivative · entry 1

BUDORICK STEPHEN E · CIK 0001169452 · Director · PRESIDENT/CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,063,297

Underlying: Common Shares · 179,704 shares

Expires not disclosed

F1 · derivative.exercise_price: Each Profit Interest Unit will convert automatically into one share of beneficial interest, designated as a unit (an "OP Unit"), in COPT Defense Properties, L.P. when such Profit Interest Unit becomes vested and upon equalization of its capital account balance. OP Units are redeemable for cash, or, at the option of COPT Defense Properties, exchangeable for common shares of COPT Defense Properties, currently on a one-for-one basis.

F2 · shares: Represents Profit Interest Units issued pursuant to the COPT Defense Properties 2017 Omnibus Equity and Incentive Plan.

F1 · derivative.exercise_date: Each Profit Interest Unit will convert automatically into one share of beneficial interest, designated as a unit (an "OP Unit"), in COPT Defense Properties, L.P. when such Profit Interest Unit becomes vested and upon equalization of its capital account balance. OP Units are redeemable for cash, or, at the option of COPT Defense Properties, exchangeable for common shares of COPT Defense Properties, currently on a one-for-one basis.

F1 · derivative.expiration_date: Each Profit Interest Unit will convert automatically into one share of beneficial interest, designated as a unit (an "OP Unit"), in COPT Defense Properties, L.P. when such Profit Interest Unit becomes vested and upon equalization of its capital account balance. OP Units are redeemable for cash, or, at the option of COPT Defense Properties, exchangeable for common shares of COPT Defense Properties, currently on a one-for-one basis.

SEC source: 0001415889-25-006600 · form4-03042025_100355.xml · derivative · entry 1

BUDORICK STEPHEN E · CIK 0001169452 · Director · PRESIDENT/CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 883,593

Underlying: Common Shares · 61,561 shares

Expires not disclosed

F1 · derivative.exercise_price: Each Profit Interest Unit will convert automatically into one share of beneficial interest, designated as a unit (an "OP Unit"), in COPT Defense Properties, L.P. when such Profit Interest Unit becomes vested and upon equalization of its capital account balance. OP Units are redeemable for cash, or, at the option of COPT Defense Properties, exchangeable for common shares of COPT Defense Properties, currently on a one-for-one basis.

F2 · shares: Represents Profit Interest Units issued pursuant to the COPT Defense Properties 2017 Omnibus Equity and Incentive Plan.

F1 · derivative.exercise_date: Each Profit Interest Unit will convert automatically into one share of beneficial interest, designated as a unit (an "OP Unit"), in COPT Defense Properties, L.P. when such Profit Interest Unit becomes vested and upon equalization of its capital account balance. OP Units are redeemable for cash, or, at the option of COPT Defense Properties, exchangeable for common shares of COPT Defense Properties, currently on a one-for-one basis.

F3 · derivative.exercise_date: The Profit Interest Units will vest in three equal installments over a three-year period.

F1 · derivative.expiration_date: Each Profit Interest Unit will convert automatically into one share of beneficial interest, designated as a unit (an "OP Unit"), in COPT Defense Properties, L.P. when such Profit Interest Unit becomes vested and upon equalization of its capital account balance. OP Units are redeemable for cash, or, at the option of COPT Defense Properties, exchangeable for common shares of COPT Defense Properties, currently on a one-for-one basis.

SEC source: 0001415889-25-002453 · form4-01312025_080119.xml · derivative · entry 1

BUDORICK STEPHEN E · CIK 0001169452 · Director · PRESIDENT/CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 822,032

Underlying: Common Shares · 154,097 shares

Expires not disclosed

F1 · derivative.exercise_price: Each Profit Interest Unit will convert automatically into one share of beneficial interest, designated as a unit (an "OP Unit"), in COPT Defense Properties, L.P. when such Profit Interest Unit becomes vested and upon equalization of its capital account balance. OP Units are redeemable for cash, or, at the option of COPT Defense Properties, exchangeable for common shares of COPT Defense Properties, currently on a one-for-one basis.

F2 · shares: Represents Profit Interest Units issued pursuant to the COPT Defense Properties 2017 Omnibus Equity and Incentive Plan.

F1 · derivative.exercise_date: Each Profit Interest Unit will convert automatically into one share of beneficial interest, designated as a unit (an "OP Unit"), in COPT Defense Properties, L.P. when such Profit Interest Unit becomes vested and upon equalization of its capital account balance. OP Units are redeemable for cash, or, at the option of COPT Defense Properties, exchangeable for common shares of COPT Defense Properties, currently on a one-for-one basis.

F1 · derivative.expiration_date: Each Profit Interest Unit will convert automatically into one share of beneficial interest, designated as a unit (an "OP Unit"), in COPT Defense Properties, L.P. when such Profit Interest Unit becomes vested and upon equalization of its capital account balance. OP Units are redeemable for cash, or, at the option of COPT Defense Properties, exchangeable for common shares of COPT Defense Properties, currently on a one-for-one basis.

SEC source: 0001415889-24-026411 · form4-11082024_061130.xml · nonDerivative · entry 1

BUDORICK STEPHEN E · CIK 0001169452 · Director · PRESIDENT/CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 153,882

SEC source: 0001415889-24-026355 · form4-11072024_101126.xml · nonDerivative · entry 1

BUDORICK STEPHEN E · CIK 0001169452 · Director · PRESIDENT/CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 162,736

SEC source: 0001415889-24-026207 · form4-11062024_021153.xml · nonDerivative · entry 1

BUDORICK STEPHEN E · CIK 0001169452 · Director · PRESIDENT/CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 171,736

SEC source: 0001415889-24-026097 · form4-11052024_061127.xml · nonDerivative · entry 1

BUDORICK STEPHEN E · CIK 0001169452 · Director · PRESIDENT/CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 180,736

SEC source: 0001415889-24-006783 · form4-03052024_100315.xml · derivative · entry 1

BUDORICK STEPHEN E · CIK 0001169452 · Director · PRESIDENT/CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 667,935

Underlying: Common Shares · 66,482 shares

Expires not disclosed

F1 · derivative.exercise_price: Each Profit Interest Unit will convert automatically into one share of beneficial interest, designated as a unit (an "OP Unit"), in COPT Defense Properties, L.P. when such Profit Interest Unit becomes vested and upon equalization of its capital account balance. OP Units are redeemable for cash, or, at the option of COPT Defense Properties, exchangeable for common shares of COPT Defense Properties, currently on a one-for-one basis.

F2 · shares: Represents Profit Interest Units issued pursuant to the COPT Defense Properties 2017 Omnibus Equity and Incentive Plan.

F1 · derivative.exercise_date: Each Profit Interest Unit will convert automatically into one share of beneficial interest, designated as a unit (an "OP Unit"), in COPT Defense Properties, L.P. when such Profit Interest Unit becomes vested and upon equalization of its capital account balance. OP Units are redeemable for cash, or, at the option of COPT Defense Properties, exchangeable for common shares of COPT Defense Properties, currently on a one-for-one basis.

F3 · derivative.exercise_date: The Profit Interest Units will vest in three equal installments over a three-year period.

F1 · derivative.expiration_date: Each Profit Interest Unit will convert automatically into one share of beneficial interest, designated as a unit (an "OP Unit"), in COPT Defense Properties, L.P. when such Profit Interest Unit becomes vested and upon equalization of its capital account balance. OP Units are redeemable for cash, or, at the option of COPT Defense Properties, exchangeable for common shares of COPT Defense Properties, currently on a one-for-one basis.

F3 · derivative.expiration_date: The Profit Interest Units will vest in three equal installments over a three-year period.

SEC source: 0001415889-24-002457 · form4-02052024_060207.xml · derivative · entry 1

BUDORICK STEPHEN E · CIK 0001169452 · Director · PRESIDENT/CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 601,453

Underlying: Common Shares · 154,885 shares

Expires not disclosed

F1 · derivative.exercise_price: Each Profit Interest Unit will convert automatically into one share of beneficial interest, designated as a unit (an "OP Unit"), in Corporate Office Properties, L.P. when such Profit Interest Unit becomes vested and upon equalization of its capital account balance. OP Units are redeemable for cash, or, at the option of Corporate Office Properties Trust, exchangeable for common shares of Corporate Office Properties Trust, currently on a one-for-one basis.

F2 · shares: Represents Profit Interest Units issued pursuant to the Corporate Office Properties Trust 2017 Omnibus Equity and Incentive Plan.

F1 · derivative.exercise_date: Each Profit Interest Unit will convert automatically into one share of beneficial interest, designated as a unit (an "OP Unit"), in Corporate Office Properties, L.P. when such Profit Interest Unit becomes vested and upon equalization of its capital account balance. OP Units are redeemable for cash, or, at the option of Corporate Office Properties Trust, exchangeable for common shares of Corporate Office Properties Trust, currently on a one-for-one basis.

F1 · derivative.expiration_date: Each Profit Interest Unit will convert automatically into one share of beneficial interest, designated as a unit (an "OP Unit"), in Corporate Office Properties, L.P. when such Profit Interest Unit becomes vested and upon equalization of its capital account balance. OP Units are redeemable for cash, or, at the option of Corporate Office Properties Trust, exchangeable for common shares of Corporate Office Properties Trust, currently on a one-for-one basis.

SEC source: 0001415889-23-003974 · form4-03032023_060345.xml · derivative · entry 1

BUDORICK STEPHEN E · CIK 0001169452 · PRESIDENT /CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 446,568

Underlying: Common Shares · 54,238 shares

Expires not disclosed

F1 · derivative.exercise_price: Each Profit Interest Unit will convert automatically into one share of beneficial interest, designated as a unit (an "OP Unit"), in Corporate Office Properties, L.P. when such Profit Interest Unit becomes vested and upon equalization of its capital account balance. OP Units are redeemable for cash, or, at the option of Corporate Office Properties Trust, exchangeable for common shares of Corporate Office Properties Trust, currently on a one-for-one basis.

F2 · shares: Represents Profit Interest Units issued pursuant to the Corporate Office Properties Trust 2017 Omnibus Equity and Incentive Plan.

F1 · derivative.exercise_date: Each Profit Interest Unit will convert automatically into one share of beneficial interest, designated as a unit (an "OP Unit"), in Corporate Office Properties, L.P. when such Profit Interest Unit becomes vested and upon equalization of its capital account balance. OP Units are redeemable for cash, or, at the option of Corporate Office Properties Trust, exchangeable for common shares of Corporate Office Properties Trust, currently on a one-for-one basis.

F3 · derivative.exercise_date: The Profit Interest Units will vest in three equal installments over a three-year period.

F1 · derivative.expiration_date: Each Profit Interest Unit will convert automatically into one share of beneficial interest, designated as a unit (an "OP Unit"), in Corporate Office Properties, L.P. when such Profit Interest Unit becomes vested and upon equalization of its capital account balance. OP Units are redeemable for cash, or, at the option of Corporate Office Properties Trust, exchangeable for common shares of Corporate Office Properties Trust, currently on a one-for-one basis.

F3 · derivative.expiration_date: The Profit Interest Units will vest in three equal installments over a three-year period.

SEC source: 0001415889-23-001715 · form4-02012023_080203.xml · derivative · entry 1

BUDORICK STEPHEN E · CIK 0001169452 · PRESIDENT /CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 392,330

Underlying: Common Shares · 105,546 shares

Expires not disclosed

F1 · derivative.exercise_price: Each Profit Interest Unit will convert automatically into one share of beneficial interest, designated as a unit (an "OP Unit"), in Corporate Office Properties, L.P. when such Profit Interest Unit becomes vested and upon equalization of its capital account balance. OP Units are redeemable for cash, or, at the option of Corporate Office Properties Trust, exchangeable for common shares of Corporate Office Properties Trust, currently on a one-for-one basis.

F2 · shares: Represents Profit Interest Units issued pursuant to the Corporate Office Properties Trust 2017 Omnibus Equity and Incentive Plan.

F1 · derivative.exercise_date: Each Profit Interest Unit will convert automatically into one share of beneficial interest, designated as a unit (an "OP Unit"), in Corporate Office Properties, L.P. when such Profit Interest Unit becomes vested and upon equalization of its capital account balance. OP Units are redeemable for cash, or, at the option of Corporate Office Properties Trust, exchangeable for common shares of Corporate Office Properties Trust, currently on a one-for-one basis.

F1 · derivative.expiration_date: Each Profit Interest Unit will convert automatically into one share of beneficial interest, designated as a unit (an "OP Unit"), in Corporate Office Properties, L.P. when such Profit Interest Unit becomes vested and upon equalization of its capital account balance. OP Units are redeemable for cash, or, at the option of Corporate Office Properties Trust, exchangeable for common shares of Corporate Office Properties Trust, currently on a one-for-one basis.

SEC source: 0001179110-22-001930 · edgar.xml · derivative · entry 1

BUDORICK STEPHEN E · CIK 0001169452 · President & CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 238,365

Underlying: Common Shares · 48,419 shares

Expires not disclosed

F1 · derivative.exercise_price: Each Profit Interest Unit will convert automatically into one share of beneficial interest, designated as a unit (an "OP Unit"), in Corporate Office Properties, L.P. when such Profit Interest Unit becomes vested and upon equalization of its capital account balance. OP Units are redeemable for cash, or, at the option of Corporate Office Properties Trust, exchangeable for common shares of Corporate Office Properties Trust, currently on a one-for-one basis.

F2 · shares: Represents Profit Interest Units issued pursuant to the Corporate Office Properties Trust 2017 Omnibus Equity and Incentive Plan.

F1 · derivative.exercise_date: Each Profit Interest Unit will convert automatically into one share of beneficial interest, designated as a unit (an "OP Unit"), in Corporate Office Properties, L.P. when such Profit Interest Unit becomes vested and upon equalization of its capital account balance. OP Units are redeemable for cash, or, at the option of Corporate Office Properties Trust, exchangeable for common shares of Corporate Office Properties Trust, currently on a one-for-one basis.

F3 · derivative.exercise_date: The Profit Interest Units will vest in three equal installments over a three-year period.

F1 · derivative.expiration_date: Each Profit Interest Unit will convert automatically into one share of beneficial interest, designated as a unit (an "OP Unit"), in Corporate Office Properties, L.P. when such Profit Interest Unit becomes vested and upon equalization of its capital account balance. OP Units are redeemable for cash, or, at the option of Corporate Office Properties Trust, exchangeable for common shares of Corporate Office Properties Trust, currently on a one-for-one basis.

F3 · derivative.expiration_date: The Profit Interest Units will vest in three equal installments over a three-year period.

SEC source: 0001415889-22-003516 · form4a-03312022_020303.xml · derivative · entry 1

BUDORICK STEPHEN E · CIK 0001169452 · EVP & COO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: Not disclosed

Underlying: Common Shares · Not disclosed shares

Expires not disclosed

F1 · derivative.exercise_price: Each Profit Interest Unit will convert automatically into one share of beneficial interest, designated as a unit (an "OP Unit"), in Corporate Office Properties, L.P. when such Profit Interest Unit becomes vested and upon equalization of its capital account balance. OP Units are redeemable for cash, or, at the option of Corporate Office Properties Trust, exchangeable for common shares of Corporate Office Properties Trust, currently on a one-for-one basis.

F2 · reported_value: Represents Profit Interest Units issued pursuant to the Corporate Office Properties Trust 2017 Omnibus Equity and Incentive Plan.

F1 · derivative.exercise_date: Each Profit Interest Unit will convert automatically into one share of beneficial interest, designated as a unit (an "OP Unit"), in Corporate Office Properties, L.P. when such Profit Interest Unit becomes vested and upon equalization of its capital account balance. OP Units are redeemable for cash, or, at the option of Corporate Office Properties Trust, exchangeable for common shares of Corporate Office Properties Trust, currently on a one-for-one basis.

F3 · derivative.exercise_date: The Profit Interest Units will vest in three equal installments over a three-year period.

F1 · derivative.expiration_date: Each Profit Interest Unit will convert automatically into one share of beneficial interest, designated as a unit (an "OP Unit"), in Corporate Office Properties, L.P. when such Profit Interest Unit becomes vested and upon equalization of its capital account balance. OP Units are redeemable for cash, or, at the option of Corporate Office Properties Trust, exchangeable for common shares of Corporate Office Properties Trust, currently on a one-for-one basis.

F3 · derivative.expiration_date: The Profit Interest Units will vest in three equal installments over a three-year period.

F4 · valueOwnedAfter: This form amends the report to update the amount of PIU's beneficially owned following the reported transaction.

SEC source: 0001179110-22-000764 · edgar.xml · derivative · entry 1

BUDORICK STEPHEN E · CIK 0001169452 · President & CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 238,365

Underlying: Common Shares · 118,526 shares

Expires not disclosed

F1 · derivative.exercise_price: Each Profit Interest Unit will convert automatically into one share of beneficial interest, designated as a unit (an "OP Unit"), in Corporate Office Properties, L.P. when such Profit Interest Unit becomes vested and upon equalization of its capital account balance. OP Units are redeemable for cash, or, at the option of Corporate Office Properties Trust, exchangeable for common shares of Corporate Office Properties Trust, currently on a one-for-one basis.

F2 · shares: Represents Profit Interest Units issued pursuant to the Corporate Office Properties Trust 2017 Omnibus Equity and Incentive Plan.

F1 · derivative.exercise_date: Each Profit Interest Unit will convert automatically into one share of beneficial interest, designated as a unit (an "OP Unit"), in Corporate Office Properties, L.P. when such Profit Interest Unit becomes vested and upon equalization of its capital account balance. OP Units are redeemable for cash, or, at the option of Corporate Office Properties Trust, exchangeable for common shares of Corporate Office Properties Trust, currently on a one-for-one basis.

F1 · derivative.expiration_date: Each Profit Interest Unit will convert automatically into one share of beneficial interest, designated as a unit (an "OP Unit"), in Corporate Office Properties, L.P. when such Profit Interest Unit becomes vested and upon equalization of its capital account balance. OP Units are redeemable for cash, or, at the option of Corporate Office Properties Trust, exchangeable for common shares of Corporate Office Properties Trust, currently on a one-for-one basis.

SEC source: 0001179110-21-002661 · edgar.xml · derivative · entry 2

BUDORICK STEPHEN E · CIK 0001169452 · President & CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 119,839

Underlying: Common Shares · 46,154 shares

Expires not disclosed

F2 · derivative.exercise_price: Each Profit Interest Unit will convert automatically into one share of beneficial interest, designated as a unit (an "OP Unit"), in Corporate Office Properties, L.P. when such Profit Interest Unit becomes vested and upon equalization of its capital account balance. OP Units are redeemable for cash, or, at the option of Corporate Office Properties Trust, exchangeable for common shares of Corporate Office Properties Trust, currently on a one-for-one basis.

F3 · shares: Represents Profit Interest Units issued pursuant to the Corporate Office Properties Trust 2017 Omnibus Equity and Incentive Plan.

F2 · derivative.exercise_date: Each Profit Interest Unit will convert automatically into one share of beneficial interest, designated as a unit (an "OP Unit"), in Corporate Office Properties, L.P. when such Profit Interest Unit becomes vested and upon equalization of its capital account balance. OP Units are redeemable for cash, or, at the option of Corporate Office Properties Trust, exchangeable for common shares of Corporate Office Properties Trust, currently on a one-for-one basis.

F4 · derivative.exercise_date: The Profit Interest Units will vest in three equal installments over a three-year period.

F2 · derivative.expiration_date: Each Profit Interest Unit will convert automatically into one share of beneficial interest, designated as a unit (an "OP Unit"), in Corporate Office Properties, L.P. when such Profit Interest Unit becomes vested and upon equalization of its capital account balance. OP Units are redeemable for cash, or, at the option of Corporate Office Properties Trust, exchangeable for common shares of Corporate Office Properties Trust, currently on a one-for-one basis.

F4 · derivative.expiration_date: The Profit Interest Units will vest in three equal installments over a three-year period.

SEC source: 0001179110-21-002661 · edgar.xml · nonDerivative · entry 1

BUDORICK STEPHEN E · CIK 0001169452 · President & CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 189,736

F1 · price: These shares were forfeited in a net share settlement in connection with restrictions laspsing on restricted shares.

SEC source: 0001179110-21-001343 · edgar.xml · nonDerivative · entry 2

BUDORICK STEPHEN E · CIK 0001169452 · President & CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 194,281

SEC source: 0001179110-21-001343 · edgar.xml · nonDerivative · entry 1

BUDORICK STEPHEN E · CIK 0001169452 · President & CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 223,432

F1 · price: Received as employment compensation upon satisfaction of the performance criteria for performance-based share units awarded on January 1, 2018.

SEC source: 0001179110-21-000048 · edgar.xml · nonDerivative · entry 1

BUDORICK STEPHEN E · CIK 0001169452 · President & CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 151,772

SEC source: 0001179110-20-012272 · edgar.xml · nonDerivative · entry 1

BUDORICK STEPHEN E · CIK 0001169452 · President & CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 151,189

SEC source: 0001179110-20-012228 · edgar.xml · nonDerivative · entry 1

BUDORICK STEPHEN E · CIK 0001169452 · President & CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 150,724

SEC source: 0001179110-20-012205 · edgar.xml · nonDerivative · entry 1

BUDORICK STEPHEN E · CIK 0001169452 · President & CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 150,138

SEC source: 0001179110-20-012157 · edgar.xml · nonDerivative · entry 1

BUDORICK STEPHEN E · CIK 0001169452 · President & CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 149,594

SEC source: 0001179110-20-012123 · edgar.xml · nonDerivative · entry 1

BUDORICK STEPHEN E · CIK 0001169452 · President & CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 149,046

SEC source: 0001179110-20-011845 · edgar.xml · nonDerivative · entry 1

BUDORICK STEPHEN E · CIK 0001169452 · President & CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 148,463

SEC source: 0001179110-20-011827 · edgar.xml · nonDerivative · entry 1

BUDORICK STEPHEN E · CIK 0001169452 · President & CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 148,149

SEC source: 0001179110-20-011804 · edgar.xml · nonDerivative · entry 1

BUDORICK STEPHEN E · CIK 0001169452 · President & CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 147,834

SEC source: 0001179110-20-004016 · edgar.xml · nonDerivative · entry 1

BUDORICK STEPHEN E · CIK 0001169452 · President & CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 147,520

SEC source: 0001179110-20-003838 · edgar.xml · nonDerivative · entry 1

BUDORICK STEPHEN E · CIK 0001169452 · President & CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 146,045

SEC source: 0001179110-20-002801 · edgar.xml · derivative · entry 3

BUDORICK STEPHEN E · CIK 0001169452 · President & CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 73,685

Underlying: Common Shares · 40,055 shares

Expires not disclosed

F2 · derivative.exercise_price: Each Profit Interest Unit will convert automatically into one share of beneficial interest, designated as a unit (an "OP Unit"), in Corporate Office Properties, L.P. when such Profit Interest Unit becomes vested and upon equalization of its capital account balance. OP Units are redeemable for cash, or, at the option of Corporate Office Properties Trust, exchangeable for common shares of Corporate Office Properties Trust, currently on a one-for-one basis.

F3 · shares: Represents Profit Interest Units issued pursuant to the Corporate Office Properties Trust 2017 Omnibus Equity and Incentive Plan.

F2 · derivative.exercise_date: Each Profit Interest Unit will convert automatically into one share of beneficial interest, designated as a unit (an "OP Unit"), in Corporate Office Properties, L.P. when such Profit Interest Unit becomes vested and upon equalization of its capital account balance. OP Units are redeemable for cash, or, at the option of Corporate Office Properties Trust, exchangeable for common shares of Corporate Office Properties Trust, currently on a one-for-one basis.

F4 · derivative.exercise_date: The Profit Interest Units will vest in three equal installments over a three-year period.

F2 · derivative.expiration_date: Each Profit Interest Unit will convert automatically into one share of beneficial interest, designated as a unit (an "OP Unit"), in Corporate Office Properties, L.P. when such Profit Interest Unit becomes vested and upon equalization of its capital account balance. OP Units are redeemable for cash, or, at the option of Corporate Office Properties Trust, exchangeable for common shares of Corporate Office Properties Trust, currently on a one-for-one basis.

F4 · derivative.expiration_date: The Profit Interest Units will vest in three equal installments over a three-year period.

SEC source: 0001179110-20-002801 · edgar.xml · nonDerivative · entry 2

BUDORICK STEPHEN E · CIK 0001169452 · President & CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 143,515

F1 · price: These shares were forfeited in a net share settlement in connection with restrictions laspsing on restricted shares.

SEC source: 0001179110-20-002801 · edgar.xml · nonDerivative · entry 1

BUDORICK STEPHEN E · CIK 0001169452 · President & CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 148,059

F1 · price: These shares were forfeited in a net share settlement in connection with restrictions laspsing on restricted shares.

SEC source: 0001179110-20-000589 · edgar.xml · nonDerivative · entry 2

BUDORICK STEPHEN E · CIK 0001169452 · President & CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 142,074

SEC source: 0001179110-20-000589 · edgar.xml · nonDerivative · entry 1

BUDORICK STEPHEN E · CIK 0001169452 · President & CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 153,647

SEC source: 0001179110-20-002785 · edgar.xml · nonDerivative · entry 2

BUDORICK STEPHEN E · CIK 0001169452 · President & CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 150,718

F1 · security: The Form 4 filed on January 15, 2020, inadvertently reported incorrect transactions. The transactions originally reported did not occur, but rather the transactions being reported in this amendment.

SEC source: 0001179110-20-002785 · edgar.xml · nonDerivative · entry 1

BUDORICK STEPHEN E · CIK 0001169452 · President & CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 155,464

F1 · security: The Form 4 filed on January 15, 2020, inadvertently reported incorrect transactions. The transactions originally reported did not occur, but rather the transactions being reported in this amendment.

F2 · price: Received as employment compensation.

SEC source: 0001179110-19-013177 · edgar.xml · nonDerivative · entry 1

BUDORICK STEPHEN E · CIK 0001169452 · President & CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 141,552

SEC source: 0001179110-19-013175 · edgar.xml · nonDerivative · entry 1

BUDORICK STEPHEN E · CIK 0001169452 · President & CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 140,524

SEC source: 0001179110-19-013156 · edgar.xml · nonDerivative · entry 1

BUDORICK STEPHEN E · CIK 0001169452 · President & CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 140,011

SEC source: 0001179110-19-013136 · edgar.xml · nonDerivative · entry 1

BUDORICK STEPHEN E · CIK 0001169452 · President & CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 139,497

SEC source: 0001179110-19-013115 · edgar.xml · nonDerivative · entry 1

BUDORICK STEPHEN E · CIK 0001169452 · President & CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 138,984

SEC source: 0001179110-19-013040 · edgar.xml · nonDerivative · entry 2

BUDORICK STEPHEN E · CIK 0001169452 · President & CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 138,475

SEC source: 0001179110-19-013040 · edgar.xml · nonDerivative · entry 1

BUDORICK STEPHEN E · CIK 0001169452 · President & CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 137,955

SEC source: 0001179110-19-012970 · edgar.xml · nonDerivative · entry 1

BUDORICK STEPHEN E · CIK 0001169452 · President & CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 136,913

SEC source: 0001179110-19-012846 · edgar.xml · nonDerivative · entry 1

BUDORICK STEPHEN E · CIK 0001169452 · President & CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 135,850

SEC source: 0001179110-19-012734 · edgar.xml · nonDerivative · entry 1

BUDORICK STEPHEN E · CIK 0001169452 · President & CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 134,789

SEC source: 0001179110-19-012732 · edgar.xml · nonDerivative · entry 1

BUDORICK STEPHEN E · CIK 0001169452 · President & CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 133,706

SEC source: 0001179110-19-012659 · edgar.xml · nonDerivative · entry 1

BUDORICK STEPHEN E · CIK 0001169452 · President & CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 132,650

SEC source: 0001179110-19-003299 · edgar.xml · nonDerivative · entry 4

BUDORICK STEPHEN E · CIK 0001169452 · President & CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 165,227

F2 · price: These restricted shares, shall lapse equally over a 3 year period.