| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| BOWLER E JOSEPH | Retired Director | WESTAMERICA BANCORPORATION, 4550 MANGELS BLVD, FAIRFIELD | /s/Anela Jonas, attorney-in-fact for Mr. Bowler | 04 Feb 2026 | 0001261781 |
E. JOSEPH BOWLER is no longer subject to Section 16 filing requirements. Form 4 or Form 5 obligations may continue.