Director Christina M. Alvord Acquires 2,741 Deferred Restricted Stock Units in Apogee Enterprises

This Form 4 filing reports that Christina M. Alvord, a director of Apogee Enterprises, Inc. (APOG), acquired 2,741 deferred restricted stock units on June 24, 2026, at a price of $41.96 per share. The transaction was an award under the company's 2019 Non-Employee Director Stock Plan. Following this acquisition, Alvord now holds a total of 13,280 deferred restricted stock units, which includes units acquired through dividend equivalent reinvestment features of the plan. The deferred restricted stock units will be settled in shares of common stock following the director's termination from the Board or other specified events outlined in the plan. The filing was signed by Bryan A. Welp as Attorney-in-Fact for Christina M. Alvord on June 26, 2026.