SEC Form 4 · Updated Daily
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— WESTAMERICA BANCORPORATION OwnershipInsider and institutional ownership derived from SEC Form 4 filings. Click any owner to see their holdings across every company they’ve filed on, and how their position has changed over time.
Current Reporting Owners
| Owner | Role | Shares Owned | As Of | Last Activity |
|---|---|---|---|---|
| PAYNE DAVID L | Director · Officer | 253,689 | 2024-01-31 | S |
| SYLVESTER EDWARD B | Director | 57,490 | 2020-01-22 | S |
| SCHNECK JAMES J | Officer | 47,225 | 2018-02-02 | M |
| BOWLER E JOSEPH | Director | 25,887 | 2012-11-06 | G |
| HANSEN DENNIS R | Officer | 18,787 | 2018-07-23 | M |
| FINGER JENNIFER J | Officer | 13,681.81 | 2015-01-26 | A |
| THORSON JOHN A | Officer | 11,591 | 2025-04-28 | S |
| ZBACNIK FRANK R | Officer | 8,105.14 | 2008-02-01 | M |
| Ensinger George S | Officer | 6,565 | 2026-03-02 | F |
| DONOHOE BRIAN J | Officer | 3,814 | 2026-03-02 | F |
| Wondeh Inez | Director | 1,007 | 2026-04-22 | P |
| BARTOLINI LOUIS E | Director | 750 | 2021-04-12 | G |
| Hassid Michele R. | Director | 623 | 2023-05-04 | P |
| Chiesa Melanie Martella | Director | 250 | 2023-05-04 | P |
| Jonas Anela Marya | Officer | 235.554 | 2026-02-24 | A |
| Belew Alisa Jane | Director | 208 | 2024-04-23 | P |
| Camsey Martin | Director | 63 | 2025-04-24 | P |
| Sousa John Joseph III | Officer | 24.68 | 2025-01-27 | — |
| Rizzardi Russell W | Officer | 15 | 2022-01-25 | A |
| Robinson David L | Officer | 7.14 | 2017-04-24 | S |
| LEAVITT JESSE | Officer | 1 | 2020-01-01 | — |
| Welch Carter Andrew Mr. | Director | 0 | 2026-02-26 | — |
| Thorsen Cheryl Christine | Officer | 0 | 2025-06-26 | — |
| Baker Robert James Jr | Officer | 0 | 2026-04-20 | S |
| Belton Curtis | Officer | 0 | 2023-08-03 | S |
| Mihalik Matthew John | Officer | 0 | 2026-01-12 | — |
| MAC MILLAN CATHERINE C | Director | 0 | 2021-04-19 | S |
Recent Filings
| Date | Owner | Activity | Shares | Price | Owned After |
|---|---|---|---|---|---|
| 2026-10-23 | Belton Curtis | Option exercise (derivative) | 7,400 | $0.00 | 0 |
| 2026-07-24 | Belton Curtis | Option exercise (derivative) | 9,200 | $0.00 | 0 |
| 2026-07-20 | Baker Robert James Jr | Option exercise (derivative) | 14,400 | $0.00 | 0 |
| 2026-07-20 | DONOHOE BRIAN J | Option exercise (derivative) | 5,900 | $0.00 | 0 |
| 2026-05-01 | Baker Robert James Jr | Option exercise (derivative) | 10,200 | $0.00 | 5,100 |
| 2026-04-24 | Belton Curtis | Option exercise (derivative) | 10,600 | $0.00 | 5,300 |
| 2026-04-22 | Wondeh Inez | Open-market buy | 61 | $53.78 | 1,007 |
| 2026-04-20 | Baker Robert James Jr | Open-market sale | 759 | $53.83 | 0 |
| 2026-03-02 | Ensinger George S | Tax withholding | 1,156 | $50.90 | 6,565 |
| 2026-03-02 | Baker Robert James Jr | Tax withholding | 601 | $50.90 | 759 |
| 2026-03-02 | DONOHOE BRIAN J | Tax withholding | 1,010 | $50.90 | 3,814 |
| 2026-02-26 | Welch Carter Andrew Mr. | — | — | — | 0 |
| 2026-02-26 | Welch Carter Andrew Mr. | — | — | — | 0 |
| 2026-02-24 | Jonas Anela Marya | Grant / award | 15 | $0.00 | 235.554 |
| 2026-01-22 | Ensinger George S | Grant / award | 408 | $0.00 | 7,721 |
| 2026-01-22 | Ensinger George S | Grant / award | 986 | $0.00 | 7,313 |
| 2026-01-22 | Ensinger George S | Grant / award | 1,412 | $0.00 | 6,327 |
| 2026-01-22 | Thorsen Cheryl Christine | Grant / award (derivative) | 6,900 | $51.15 | 6,900 |
| 2026-01-22 | Belton Curtis | Grant / award (derivative) | 16,600 | $51.15 | 16,600 |
| 2026-01-22 | Jonas Anela Marya | Grant / award (derivative) | 23,500 | $51.15 | 23,500 |
| 2026-01-22 | DONOHOE BRIAN J | Grant / award (derivative) | 20,500 | $51.15 | 20,500 |
| 2026-01-22 | DONOHOE BRIAN J | Grant / award | 2,040 | $0.00 | 2,086.841 |
| 2026-01-22 | Baker Robert James Jr | Grant / award (derivative) | 15,800 | $51.15 | 15,800 |
| 2026-01-22 | Baker Robert James Jr | Grant / award | 1,360 | $0.00 | 1,360 |
| 2026-01-22 | DONOHOE BRIAN J | Grant / award (derivative) | 20,500 | $51.15 | 20,500 |
| 2026-01-22 | DONOHOE BRIAN J | Grant / award | 2,040 | $0.00 | 2,086.841 |
| 2026-01-12 | Mihalik Matthew John | — | — | — | 0 |
| 2026-01-12 | Mihalik Matthew John | — | — | — | 0 |
| 2025-07-10 | THORSON JOHN A | Option exercise (derivative) | 6,462 | $0.00 | 15,133 |
| 2025-07-09 | THORSON JOHN A | Option exercise (derivative) | 10 | $0.00 | 21,595 |
| 2025-07-07 | THORSON JOHN A | Option exercise (derivative) | 1,093 | $0.00 | 21,605 |
| 2025-07-03 | THORSON JOHN A | Option exercise (derivative) | 2 | $0.00 | 22,698 |
| 2025-06-26 | Thorsen Cheryl Christine | — | — | — | 0 |
| 2025-06-26 | Thorsen Cheryl Christine | — | — | — | 0 |
| 2025-04-29 | Wondeh Inez | Open-market buy | 451 | $48.51 | 946 |
| 2025-04-28 | THORSON JOHN A | Open-market sale | 2,243 | $48.57 | 11,591 |
| 2025-04-24 | Baker Robert James Jr | Open-market sale | 710 | $48.16 | 0 |
| 2025-04-24 | Camsey Martin | Open-market buy | 63 | $47.50 | 63 |
| 2025-03-03 | Ensinger George S | Tax withholding | 588 | $51.82 | 4,915 |
| 2025-03-03 | DONOHOE BRIAN J | Tax withholding | 998 | $51.82 | 46.841 |
Source: SEC EDGAR Form 4 filings. For informational purposes only — not investment advice.