Westamerica Bancorporation's three largest insider shareholders as of September 29, 2026 are David L Payne (Chairman, President Ceo, 242.42K shares), John A Thorson (Svp/Treasurer, 11.59K shares), George S Ensinger (Svp/Human Resources Div. Mgr, 6.57K shares).
| # | Insider | Position | Direct | Indirect | Total | Share of Insiders | Last Filed |
|---|---|---|---|---|---|---|---|
| 1 | David L Payne | Chairman, President Ceo | 0 | 242,417 | 242,417 | 90.9% | 01 Feb, 2024 |
| 2 | John A Thorson | Svp/Treasurer | 0 | 11,591 | 11,591 | 4.3% | 28 Apr, 2025 |
| 3 | George S Ensinger | Svp/Human Resources Div. Mgr | 6,565 | 0 | 6,565 | 2.5% | 02 Mar, 2026 |
| 4 | Brian J Donohoe | Svp/Chief Information Officer | 0 | 3,814 | 3,814 | 1.4% | 03 Mar, 2026 |
| 5 | Inez Wondeh | Director | 1,007 | 0 | 1,007 | 0.4% | 23 Apr, 2026 |
| 6 | Michele R. Hassid | Director | 623 | 0 | 623 | 0.2% | 04 May, 2023 |
| 7 | Melanie Martella Chiesa | Director | 250 | 0 | 250 | 0.1% | 04 May, 2023 |
| 8 | Anela Marya Jonas | Svp/Cfo | 236 | 0 | 236 | 0.1% | 24 Feb, 2026 |
| 9 | Alisa Jane Belew | Director | 208 | 0 | 208 | 0.1% | 24 Apr, 2024 |
| 10 | Martin Camsey | Director | 63 | 0 | 63 | 0.0% | 24 Apr, 2025 |
Each row is that insider’s most recently reported position, from Form 4 filings over the last 60 months — which is why this total does not tie to the quarterly series above, where a quarter counts only the insiders who filed in it. Shares held through a fund or institutional portfolio are counted on the institutional ownership page instead.
| Date | Insider | Position | Transaction | Shares | Price | Value | Shares Held After | Ownership |
|---|---|---|---|---|---|---|---|---|
| 24 Jul, 2026 | Curtis Belton | Svp/Risk Officer | Disposed M | 9,200 | $0.00 | $0 | 0 | Direct |
| 20 Jul, 2026 | Robert James Jr Baker | Svp/Banking Division Manager | Disposed M | 14,400 | $0.00 | $0 | 0 | Direct |
| 20 Jul, 2026 | Brian J Donohoe | Svp/Chief Information Officer | Disposed M | 5,900 | $0.00 | $0 | 0 | Direct |
| 20 Jul, 2026 | Brian J Donohoe | Svp/Chief Information Officer | Disposed M | 15,100 | $0.00 | $0 | 0 | Direct |
| 20 Jul, 2026 | Robert James Jr Baker | Svp/Banking Division Manager | Disposed M | 15,000 | $0.00 | $0 | 0 | Direct |
| 01 May, 2026 | Robert James Jr Baker | Svp/Banking Division Manager | Disposed M | 10,200 | $0.00 | $0 | 5,100 | Direct |
| 24 Apr, 2026 | Curtis Belton | Svp/Risk Officer | Disposed M | 10,600 | $0.00 | $0 | 5,300 | Direct |
| 22 Apr, 2026 | Inez Wondeh | Director | Acquired P | 61 | $53.79 | $3.28K | 1,007 | Direct |
| 20 Apr, 2026 | Robert James Jr Baker | Svp/Banking Division Manager | Disposed S | 759 | $53.83 | $40.86K | 0 | Direct |
| 02 Mar, 2026 | Brian J Donohoe | Svp/Chief Information Officer | Disposed F | 1,010 | $50.90 | $51.41K | 3,814 | Indirect |
| 02 Mar, 2026 | George S Ensinger | Svp/Human Resources Div. Mgr | Disposed F | 1,156 | $50.90 | $58.84K | 6,565 | Direct |
| 02 Mar, 2026 | Robert James Jr Baker | Svp/Banking Division Manager | Disposed F | 601 | $50.90 | $30.59K | 759 | Direct |
| 24 Feb, 2026 | Anela Marya Jonas | Svp/Cfo | Acquired A | 15 | $0.00 | $0 | 236 | Direct |
| 22 Jan, 2026 | Brian J Donohoe | Svp/Chief Information Officer | Acquired A | 2,040 | $0.00 | $0 | 2,087 | Direct |
| 22 Jan, 2026 | Brian J Donohoe | Svp/Chief Information Officer | Acquired A | 20,500 | $51.15 | $1.05Mn | 20,500 | Direct |
| 22 Jan, 2026 | Cheryl Christine Thorsen | Svp/Hr Division Manager | Acquired A | 6,900 | $51.15 | $352.94K | 6,900 | Direct |
| 22 Jan, 2026 | George S Ensinger | Svp/Human Resources Div. Mgr | Acquired A | 1,412 | $0.00 | $0 | 6,327 | Direct |
| 22 Jan, 2026 | Brian J Donohoe | Svp/Chief Information Officer | Acquired A | 2,040 | $0.00 | $0 | 2,087 | Direct |
| 22 Jan, 2026 | George S Ensinger | Svp/Human Resources Div. Mgr | Acquired A | 986 | $0.00 | $0 | 7,313 | Direct |
| 22 Jan, 2026 | George S Ensinger | Svp/Human Resources Div. Mgr | Acquired A | 408 | $0.00 | $0 | 7,721 | Direct |