COPT DEFENSE PROPERTIES — Director's Dealing 2017

May 18, 2017

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: CORPORATE OFFICE PROPERTIES TRUST (OFC)
CIK: 0000860546
Period of Report: 2017-05-16

Reporting Person: KESLER STEVEN D (Director)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2017-05-16	Common Shares (deferred)	A	2508	—	Acquired	33402	Direct

Footnotes

F1: These deferred shares were granted as part of annual trustee compensation and will vest in one year from the grant date.

F2: Amounts are higher than previously reported as a result of dividend reinvestment plan.

F3: These shares are owned as follows: 600 shares by reporter's daughter and 32,802 by Steven Kesler.