X0508 4 2024-12-16 0001423221 Quanex Building Products CORP NX 0001793319 Cornett Paul 945 BUNKER HILL SUITE 900 HOUSTON TX 77024 1 SVP General Counsel, Secretary 0 Common Stock 2024-12-16 4 A 0 10437 0 A 61882.4223 D Common Stock 2024-12-16 4 F 0 3283 27.77 D 58599.4223 D On December 9, 2021, the reporting person was granted a target number of performance restricted stock units, with a potential payout from 0% to 150% of target based on the Company's absolute total shareholder return over the three year period from November 1, 2021 through October 31, 2024. The payout amount was finalized on December 16, 2024, resulting in the issuance of common stock on December 16, 2024. Shares were sold to cover taxes due in connection with the grant of common stock relating to the vesting of Performance Shares originally granted on December 9, 2021. /s/ Paul B. Cornett 2024-12-17