COPT DEFENSE PROPERTIES — Director's Dealing 2011

Dec 14, 2011

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: CORPORATE OFFICE PROPERTIES TRUST (OFC)
CIK: 0000860546
Period of Report: 2011-12-13

Reporting Person: WETHE KENNETH D (Director)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2011-12-13	Common Shares of Stock	S	2000	$21.6079	Disposed		Direct

Footnotes

F1: Amount varies from previously reported as result of dividend reinvestment plan.