X0508 4 2024-04-01 0000861842 CATHAY GENERAL BANCORP CATY 0001506599 Liu Chang 777 NORTH BROADWAY LOS ANGELES CA 90012 1 1 President & CEO 0 Common Stock 2024-04-01 4 M 0 15143 0 A 71731 D Common Stock 2024-04-01 4 F 0 7675 36.91 D 64056 D Common Stock 2024-04-01 4 M 0 16091 0 A 80147 D Common Stock 2024-04-01 4 F 0 8155 36.91 D 71992 D Common Stock 2024-04-01 4 M 0 32098 0 A 104090 D Common Stock 2024-04-01 4 F 0 16268 36.91 D 87822 D Restricted Stock Units 2024-04-01 4 M 0 9197 0 D Common Stock 0 0 D Restricted Stock Units 2024-04-01 4 M 0 9773 0 D Common Stock 0 0 D Restricted Stock Units 2024-04-01 4 M 0 19546 0 D Common Stock 0 0 D Of the previously reported target award of 9,197 shares of performance-based restricted stock units, 150% of the target award was earned based upon the achievement of certain performance criteria. Of the previously reported target award of 9,773 shares of performance-based restricted stock units, 150% of the target award was earned based upon the achievement of certain performance criteria. Of the previously reported target award of 19,546 shares of performance-based restricted stock units, 149.602% of the target award was earned based upon the achievement of certain performance criteria. Shares of the Issuer's Common Stock received by the Reporting Person from the vesting of performance-based restricted stock units granted on July 22, 2021. Such restricted stock units were previously reported in Table II on a Form 4 filed by the Reporting Person with the Securities and Exchange Commission on July 26, 2021. Performance-based restricted stock units vested on December 31, 2023. /s/ Georgia Lo, attorney-in-fact 2024-04-03