X0508 4 2025-12-04 0001423221 Quanex Building Products CORP NX 0001891778 Garcia Kimberley 945 BUNKER HILL SUITE 900 HOUSTON TX 77024 1 VP, CHRO 0 Common Stock 2025-12-04 4 A 0 9100 0 A 31872.8619 D Common Stock 2025-12-07 4 F 0 1072 13.85 D 30800.8619 D Includes 0.7364 shares credited to the reporter's account as the result of dividend reinvestments under the Company's Employee Stock Purchase Plan. Shares were sold to cover taxes due in connection with the grant of common stock relating to the vesting of Performance Shares originally granted to the reporting person on December 7, 2022. /s/ Paul B. Cornett, Power of Attorney 2025-12-08