X0508 4 2023-09-12 0001423221 Quanex Building Products CORP NX 0001205035 DAVIS SUSAN F 945 BUNKER HILL SUITE 900 HOUSTON TX 77024 1 0 Common Stock 2023-09-12 4 M 0 5009 17.78 A 5009 D Common Stock 2023-09-12 4 M 0 4880 20.02 A 9889 D Stock Options (Right to Buy) 17.78 2023-09-12 4 M 0 5009 0 D 2013-10-31 2023-10-31 Common Stock 5009 0 D Stock Options (Right to Buy) 20.02 2023-09-12 4 M 0 4880 0 D 2014-10-31 2024-10-31 Common Stock 4880 0 D As a result of administrative error at the Company, this report was inadvertently filed after the stated filing deadline." The option became 100% exercisable immediately in whole or in part. /s/ Paul B. Cornett, Power of Attorney 2023-10-13