Form 4 Filing for COPT Defense Properties

This filing details a transaction by Robert L. Denton, a director at COPT Defense Properties. On June 26, 2026, Mr. Denton redeemed 1,000 common units of limited partnership interest in COPT Defense Properties, L.P. The issuer elected to pay cash for these units, with the value determined by the 10-day average closing price of the issuer's common shares on the NYSE. Following this transaction, Mr. Denton holds 141,764 common units. The filing also notes that common units are convertible into an equal number of the issuer's common shares or cash, and they have no expiration date.