COPT DEFENSE PROPERTIES — Director's Dealing 2011

Aug 16, 2011

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: CORPORATE OFFICE PROPERTIES TRUST (OFC)
CIK: 0000860546
Period of Report: 2011-08-15

Reporting Person: RIFFE STEPHEN EDWARD (EVP and CFO)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2011-08-15	Common Shares	F	3039	—	Disposed	108795	Direct

Footnotes

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