| 2026-08-05 | 10-Q | 10-Q filed 2026-08-05 by WESTAMERICA BANCORPORATION |
| 2026-07-23 | 8-K | 8-K filed 2026-07-23 by WESTAMERICA BANCORPORATION |
| 2026-07-16 | 8-K | 8-K filed 2026-07-16 by WESTAMERICA BANCORPORATION |
| 2026-05-08 | 10-Q | 10-Q filed 2026-05-08 by WESTAMERICA BANCORPORATION |
| 2026-04-27 | 8-K | 8-K filed 2026-04-27 by WESTAMERICA BANCORPORATION |
| 2026-04-24 | 8-K | 8-K filed 2026-04-24 by WESTAMERICA BANCORPORATION |
| 2026-04-23 | 8-K | 8-K filed 2026-04-23 by WESTAMERICA BANCORPORATION |
| 2026-04-16 | 8-K | 8-K filed 2026-04-16 by WESTAMERICA BANCORPORATION |
| 2026-03-13 | DEF 14A | DEF 14A filed 2026-03-13 by WESTAMERICA BANCORPORATION |
| 2026-02-27 | 10-K | 10-K filed 2026-02-27 by WESTAMERICA BANCORPORATION |
| 2026-01-23 | 8-K | 8-K filed 2026-01-23 by WESTAMERICA BANCORPORATION |
| 2026-01-22 | 8-K | 8-K filed 2026-01-22 by WESTAMERICA BANCORPORATION |
| 2026-01-15 | 8-K | 8-K filed 2026-01-15 by WESTAMERICA BANCORPORATION |
| 2025-12-18 | 8-K | 8-K filed 2025-12-18 by WESTAMERICA BANCORPORATION |
| 2025-11-07 | 10-Q | 10-Q filed 2025-11-07 by WESTAMERICA BANCORPORATION |
| 2025-10-23 | 8-K | 8-K filed 2025-10-23 by WESTAMERICA BANCORPORATION |
| 2025-10-16 | 8-K | 8-K filed 2025-10-16 by WESTAMERICA BANCORPORATION |
| 2025-08-12 | 8-K | 8-K filed 2025-08-12 by WESTAMERICA BANCORPORATION |
| 2025-08-06 | 10-Q | 10-Q filed 2025-08-06 by WESTAMERICA BANCORPORATION |
| 2025-07-24 | 8-K | 8-K filed 2025-07-24 by WESTAMERICA BANCORPORATION |
| 2025-07-17 | 8-K | 8-K filed 2025-07-17 by WESTAMERICA BANCORPORATION |
| 2025-05-09 | 10-Q | 10-Q filed 2025-05-09 by WESTAMERICA BANCORPORATION |
| 2025-04-28 | 8-K | 8-K filed 2025-04-28 by WESTAMERICA BANCORPORATION |
| 2025-04-24 | 8-K | 8-K filed 2025-04-24 by WESTAMERICA BANCORPORATION |
| 2025-04-17 | 8-K | 8-K filed 2025-04-17 by WESTAMERICA BANCORPORATION |
| 2025-03-14 | DEF 14A | DEF 14A filed 2025-03-14 by WESTAMERICA BANCORPORATION |
| 2025-02-28 | 10-K | 10-K filed 2025-02-28 by WESTAMERICA BANCORPORATION |
| 2025-02-27 | 8-K | 8-K filed 2025-02-27 by WESTAMERICA BANCORPORATION |
| 2025-01-23 | 8-K | 8-K filed 2025-01-23 by WESTAMERICA BANCORPORATION |
| 2025-01-23 | 8-K | 8-K filed 2025-01-23 by WESTAMERICA BANCORPORATION |