COPT Defense Declares Third Quarter 2026 Common Dividend

Publishes 2026 Corporate Sustainability Report and TCFD Report

COPT Defense Properties (NYSE: CDP) (“COPT Defense” or the “Company”) announced today that its Board of Trustees declared a regular quarterly dividend of $0.32 per common share for the third quarter ending September 30, 2026. The third quarter 2026 dividend represents an annualized amount of $1.28 per share and is payable on October 15, 2026, to shareholders of record on September 30, 2026.

In addition, the Company announced the publishing of its twelfth annual Corporate Sustainability Report, along with its fifth annual Task Force on Climate-Related Financial Disclosures (“TCFD”) Report. Both reports are available in the ‘Sustainability’ section of COPT Defense’s Investor Relations website (https://investors.copt.com/) and as follows:

2026 Corporate Sustainability Report: