X0306 4/A 2018-12-31 2019-01-03 0 0000006845 APOGEE ENTERPRISES, INC. APOG 0001215540 POMPA MARK A C/O APOGEE ENTERPRISES, INC. 4400 WEST 78TH STREET, SUITE 520 MINNEAPOLIS MN 55435 1 0 0 0 Phantom Stock Units 0.00 2018-12-31 4 A 0 1046 29.85 A Common Stock 1046 1046 D The phantom stock units were allocated under the Deferred Compensation Plan for Non-Employee Directors. The units of phantom stock will be settled in shares of common stock following the director's termination from the Board in accordance with the election of the reporting person, or following the occurrence of other events specified in the Plan. Settled 1-for-1. Correction of typographical error. The remainder of the form contains no changes and has been stated as originally filed. /s/Patricia A. Beithon, Attorney-in-Fact for Mark A. Pompa 2019-01-03