X0306 4 2020-05-21 0 0000860546 CORPORATE OFFICE PROPERTIES TRUST OFC 0001143567 PICKETT C TAYLOR 6711 COLUMBIA GATEWAY DRIVE SUITE 300 COLUMBIA MD 21093 1 0 0 0 Profit Interest Units 2020-05-21 4 A 0 3986 A Common Shares 3986 7418 D 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. Represents Profit Interest Units issued pursuant to the Corporate Office Properties Trust 2017 Omnibus Equity and Incentive Plan. The Profit Interest Units will vest on the first anniversary of the grant date, provided that the reporting person remains a trustee on such date. The Profit Interest Units do not expire once vested. Issued as compensation for service on the Board of Trustees. David L. Finch, by Power of Attorney 2020-05-26