Westamerica Bancorporation
A bank holding company based in San Rafael, California, whose subsidiary Westamerica Bank serves consumers and businesses across Northern and Central California with checking, savings, and lending products. Founded in 1972, the company grew by acquiring community banks throughout the region, and its name reflects its roots as a Western American banking institution.
| Holder | Schedule | % of class | Shares | Filed |
|---|---|---|---|---|
| American Century Investment Management, Inc. | 13G/APassive | 8.3% | 1.96M | Aug 14, 2026 |
| American Century Companies, Inc. | 13G/APassive | 8.3% | 1.96M | Aug 14, 2026 |
| Stowers Institute for Medical Research | 13G/APassive | 8.3% | 1.96M | Aug 14, 2026 |
| STATE STREET CORPORATION | 13GPassive | 5.9% | 1.39M | Aug 7, 2026 |
| Vanguard Capital Management | 13GPassive | 5.28% | 1.28M | Apr 30, 2026 |
| Vanguard Portfolio Management | 13GPassive | 7.33% | 1.77M | Apr 29, 2026 |
| The Vanguard Group | 13G/APassive | 0% | 0 | Mar 27, 2026 |