X0306 4 2019-12-13 0001423221 Quanex Building Products CORP NX 0001793319 Cornett Paul 1800 W LOOP SOUTH SUITE 1500 HOUSTON TX 77027 1 SVP General Counsel, Secretary Common Stock 2019-12-13 4 A 0 700 0 A 16457.99 D Common Stock 2019-12-13 4 F 0 171 19.66 D 16286.99 D On November 30, 2016, the reporting person was granted a target number of performance shares, with a potential payout from 0% to 200% of target based on the Company's earnings per share growth and relative total shareholder return over the three year period from November 1, 2016 through October 31, 2019. The payout amount was finalized on December 12, 2019, resulting in the issuance of common stock on December 13, 2019. 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 November 30, 2016. /s/ Paul B. Cornett 2019-12-16