WABC Westamerica Bancorporation
Westamerica Bancorporation (WABC) Institutional Ownership
What the institutions did with WABC last quarter, from their 13F filings. Counting managers rather than shares is the point: a single index fund adding to a position tells you far less than four hundred separate managers all deciding to. Positions as reported for the quarter ended June 30, 2026.
Every manager below opens. Subscribers can see any firm's whole portfolio — every position, its weight, and what they bought, trimmed and exited last quarter.
Sign in or subscribeLargest holders
| Manager | Shares | % of reported |
|---|---|---|
| BlackRock, Inc. | 3.3M | 18.1% |
| AMERICAN CENTURY COMPANIES INC | 2.0M | 10.6% |
| VANGUARD PORTFOLIO MANAGEMENT LLC | 1.7M | 9.3% |
| STATE STREET CORP | 1.4M | 7.6% |
| VANGUARD CAPITAL MANAGEMENT LLC | 1.0M | 5.6% |
| DIMENSIONAL FUND ADVISORS LP | 983.6K | 5.3% |
| GEODE CAPITAL MANAGEMENT, LLC | 627.1K | 3.4% |
| AQR CAPITAL MANAGEMENT LLC | 495.2K | 2.7% |
| Nuveen, LLC | 382.3K | 2.1% |
| Rhino Investment Partners, Inc | 324.8K | 1.8% |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | 324.2K | 1.8% |
| TWO SIGMA INVESTMENTS, LP | 303.8K | 1.6% |
| NORTHERN TRUST CORP | 303.4K | 1.6% |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 294.9K | 1.6% |
| RBO & CO LLC | 275.6K | 1.5% |
| MACKENZIE FINANCIAL CORP | 242.9K | 1.3% |
| MORGAN STANLEY | 230.0K | 1.2% |
| GOLDMAN SACHS GROUP INC | 228.5K | 1.2% |
| Bank of New York Mellon Corp | 211.5K | 1.1% |
| T. Rowe Price Investment Management, Inc. | 194.0K | 1.1% |
| VANGUARD FIDUCIARY TRUST CO | 154.7K | 0.8% |
| PRINCIPAL FINANCIAL GROUP INC | 147.7K | 0.8% |
| Leeward Investments, LLC - MA | 135.3K | 0.7% |
| UBS Group AG | 132.6K | 0.7% |
| Invesco Ltd. | 122.7K | 0.7% |
Largest changes
| Manager | Action | Previous | Current | Change |
|---|---|---|---|---|
| Rhino Investment Partners, Inc | New | 0 | 324.8K | +324.8K |
| PALISADE CAPITAL MANAGEMENT, LP | Sold Out | 305.0K | 0 | -305.0K |
| MACKENZIE FINANCIAL CORP | New | 0 | 242.9K | +242.9K |
| STATE STREET CORP | Increased | 1.2M | 1.4M | +190.8K |
| BlackRock, Inc. | Reduced | 3.4M | 3.3M | -113.6K |
| JUPITER ASSET MANAGEMENT LTD | Sold Out | 97.7K | 0 | -97.7K |
| AQR CAPITAL MANAGEMENT LLC | Increased | 399.0K | 495.2K | +96.2K |
| HRT FINANCIAL LP | Sold Out | 94.7K | 0 | -94.7K |
| RENAISSANCE TECHNOLOGIES LLC | Reduced | 152.4K | 72.5K | -79.9K |
| JANE STREET GROUP, LLC | Sold Out | 69.4K | 0 | -69.4K |
| Qube Research & Technologies Ltd | Reduced | 171.4K | 109.3K | -62.1K |
| VANGUARD CAPITAL MANAGEMENT LLC | Reduced | 1.1M | 1.0M | -60.5K |
| MILLENNIUM MANAGEMENT LLC | Sold Out | 56.2K | 0 | -56.2K |
| AMERICAN CENTURY COMPANIES INC | Increased | 1.9M | 2.0M | +51.2K |
| TWO SIGMA INVESTMENTS, LP | Reduced | 353.0K | 303.8K | -49.2K |
| ACADIAN ASSET MANAGEMENT LLC | New | 0 | 45.3K | +45.3K |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | Increased | 283.8K | 324.2K | +40.4K |
| DIMENSIONAL FUND ADVISORS LP | Increased | 944.7K | 983.6K | +38.9K |
| VANGUARD PORTFOLIO MANAGEMENT LLC | Reduced | 1.8M | 1.7M | -38.9K |
| Trexquant Investment LP | Sold Out | 38.1K | 0 | -38.1K |
| IFG Advisory, LLC | New | 0 | 38.0K | +38.0K |
| Destination Wealth Management | New | 0 | 36.2K | +36.2K |
| SG Americas Securities, LLC | Reduced | 45.2K | 17.9K | -27.3K |
| UBS Group AG | Reduced | 159.9K | 132.6K | -27.3K |
| MORGAN STANLEY | Reduced | 255.2K | 230.0K | -25.2K |
13F filings are due 45 days after quarter end and cover long positions in U.S.-listed equities only, so this is a lagged and partial picture: shorts, bonds and foreign listings never appear. Options positions are excluded here rather than folded into the share counts. Political ownership is coming.