X0206 3 2025-06-26 0 0000311094 WESTAMERICA BANCORPORATION WABC 0002079115 Thorsen Cheryl Christine 4550 MANGELS BLVD FAIRFIELD CA 94534 1 SVP/HR Division Manager Common Stock 0 D Common Stock 0 I N/A Form 3 was filed late because of delays in processing of Form ID due to new Edgar Next requirements. /s/Cheryl Christine Thorsen 2025-07-29