Form 4 Filing for APOGEE ENTERPRISES, INC.

This filing details stock transactions by Donald A. Nolan, Chief Executive Officer of APOGEE ENTERPRISES, INC. On June 30, 2026, Mr. Nolan acquired 62 Phantom Stock Units and 430 Deferred Restricted Stock Units. These acquisitions were made under various company plans, including the Deferred Compensation Plan for Non-Employee Directors and the 2009/2019 Director Stock Incentive Plans. The Phantom Stock Units, settled in common stock post-termination, had a transaction value of $45.74 per unit. The Deferred Restricted Stock Units, also settled in common stock post-termination, were acquired through dividend reinvestment features. Following these transactions, Mr. Nolan holds 10,675 Phantom Stock Units and 73,275 Deferred Restricted Stock Units.