Westamerica Bancorporation (WABC)
Who owns Westamerica Bancorporation (WABC)? This page shows the largest institutions and funds, the ownership structure and the latest insider transactions. 94.6% of the shares are freely tradable; institutional investors hold 80.7%.
Ownership Structure
Largest Shareholders
Institutions
| Name | Stake (%) | Shares | Change (%) | Date |
|---|---|---|---|---|
| BlackRock Inc | 14.69 | 3,449,335 | -1.4 | 03/31/2026 |
| Vanguard Group Inc | 13.50 | 3,170,769 | -0.4 | 12/31/2025 |
| American Century Companies Inc | 8.12 | 1,906,870 | +3.9 | 03/31/2026 |
| Vanguard Portfolio Management, LLC | 7.49 | 1,759,550 | +0.0 | 03/31/2026 |
| State Street Corp | 5.12 | 1,203,283 | -1.5 | 03/31/2026 |
| Vanguard Capital Management, LLC | 4.66 | 1,095,078 | +0.0 | 03/31/2026 |
| Dimensional Fund Advisors, Inc. | 4.02 | 944,699 | +5.3 | 03/31/2026 |
Funds
| Name | Stake (%) | Shares | Change (%) | Date |
|---|---|---|---|---|
| iShares Core S&P Small-Cap ETF | 6.35 | 1,491,989 | +0.0 | 05/29/2026 |
| Vanguard Total Stock Mkt Idx Inv | 3.38 | 793,788 | +0.0 | 04/30/2026 |
| Avantis US Small Cap Value ETF | 3.26 | 765,925 | +0.0 | 05/30/2026 |
Largest reported positions according to regulatory filings; stake as a percentage of shares outstanding, change versus the previous filing. Source: fundamentals data.
Insider Transactions
| Date | Person | Role | Type | Shares | Price | Value |
|---|---|---|---|---|---|---|
| 22. Apr 2026 | Inez Wondeh | Director | Buy | 61 | 53.78 | 3,281 |
| 20. Apr 2026 | Robert James Baker Jr | SVP | Sell | 759 | 53.83 | 40,857 |
Reportable transactions by officers and major shareholders from SEC Form 4 filings. "Other" includes things like stock grants and option exercises without a buy/sell character.
View all insider transactions →Data as of: July 31, 2026 · Source: fundamental data & SEC filings (annual and quarterly reports, 10-K/10-Q)
Note: pure fact-based analysis, not investment advice and not a solicitation to buy or sell. All figures without guarantee.