X0508 4 2025-11-03 0001423221 Quanex Building Products CORP NX 0001476457 Hughes Bradley E. 945 BUNKER HILL SUITE 900 HOUSTON TX 77024 1 0 Restricted Stock Units 2025-11-03 4 A 0 8045 0 A Common Stock 8045 23248 D Each Restricted Stock Unit represents a contingent right to receive cash in an amount equivalent to the value of one share of Quanex common stock. The Restricted Stock Units vest immediately, and will pay out on the earlier of the third anniversary of the date of grant or the reporting person's death, disability, cessation of service as a director, or change in control of the Company. /s/ Paul B. Cornett, Power of Attorney 2025-11-04