Westamerica BancorporationWABC
13F holders, Q1 2026 (March 31)204holders −12
15new positions
26sold out
6famous investors
$52.14avg. 13F price*
At the end of Q1 2026, 204 institutions reported holding Westamerica Bancorporation (WABC) in their 13F filings, down 12 from Q4 2025. 15 opened new positions and 26 sold out. The largest holders were BlackRock, Inc. ($179.9M), American Century Companies Inc. ($99.4M) and Vanguard Portfolio Management LLC ($91.8M). 6 famous investors held it, including Jim Simons / Peter Brown (0.0% of Renaissance Technologies's portfolio), Cliff Asness (0.0% of AQR Capital Management's portfolio) and Ken Griffin (0.0% of Citadel Advisors's portfolio).
- Company
- Westamerica Bancorporation
- CUSIP
- 957090103
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q4 2025 → Q1 2026
| Institutions | Total Value | |
|---|---|---|
| New Positions | 15 | $6.9M |
| Exits | 26 | $14.1M |
All 13F filers, Q4 2025 → Q1 2026: 910,901 shares bought and 1,864,526 shares sold, net −953,625 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 204 holders
| BlackRock, Inc. | 0.00% | Reduce -1.4% | 3,449,335 | $179.9M |
| American Century Companies Inc. | 0.05% | Add +3.9% | 1,906,870 | $99.4M |
| Vanguard Portfolio Management LLC | 0.00% | — | 1,759,550 | $91.8M |
| State Street Corp. | 0.00% | Reduce -1.5% | 1,203,283 | $62.8M |
| Vanguard Capital Management LLC | 0.00% | — | 1,095,078 | $57.1M |
| Dimensional Fund Advisors LP | 0.01% | Add +5.3% | 944,699 | $49.3M |
| Geode Capital Management, LLC | 0.00% | Add +1.1% | 613,162 | $32.0M |
| AQR Capital Management | 0.01% | Add +4.5% | 399,046 | $20.8M |
| Nuveen, LLC | 0.01% | Add +1.3% | 359,345 | $18.7M |
| Two Sigma Investments, LP | 0.02% | Add +90.1% | 353,032 | $18.4M |
| Palisade Capital Management, LP | 0.57% | Reduce -4.3% | 304,954 | $15.9M |
| Charles Schwab Investment Management Inc. | 0.00% | Reduce -0.2% | 297,925 | $15.5M |
| Northern Trust Corp. | 0.00% | Add +0.5% | 288,977 | $15.1M |
| Arrowstreet Capital, Limited Partnership | 0.01% | Reduce -3.9% | 283,809 | $14.8M |
| Rbo & Co. LLC | 2.38% | Reduce -1.6% | 282,198 | $14.7M |
| Morgan Stanley | 0.00% | Reduce -13.4% | 255,156 | $13.3M |
| Goldman Sachs Group Inc. | 0.00% | Reduce -12.6% | 226,720 | $11.8M |
| Bank of New York Mellon Corp | 0.00% | Add +0.5% | 209,513 | $10.9M |
| T. Rowe Price Investment Management, Inc. | 0.01% | Reduce -18.1% | 195,842 | $10.2M |
| Qube Research & Technologies Ltd | 0.01% | Reduce -25.0% | 171,380 | $8.9M |
| Vanguard Fiduciary Trust Co. | 0.00% | — | 159,933 | $8.3M |
| UBS Group AG | 0.00% | Reduce -65.0% | 159,861 | $8.3M |
| Renaissance Technologies | 0.01% | Add +59.6% | 152,431 | $7.9M |
| Principal Financial Group Inc. | 0.00% | Add +3.9% | 151,149 | $7.9M |
| Leeward Investments, LLC - MA | 0.36% | Reduce -2.6% | 138,180 | $7.2M |
| Invesco Ltd. | 0.00% | Add +16.3% | 132,218 | $6.9M |
| First Trust Advisors LP | 0.00% | Add +64.1% | 130,982 | $6.8M |
| New York State Common Retirement Fund | 0.01% | No change | 129,418 | $6.7M |
| Citadel Advisors | 0.00% | Reduce -40.8% | 124,582 | $6.5M |
| Jupiter Asset Management Ltd. | 0.03% | Reduce -22.8% | 97,707 | $5.1M |
| HRT Financial LP | 0.01% | Add +757.8% | 94,687 | $4.9M |
| Public Sector Pension Investment Board | 0.01% | Add +2.1% | 88,107 | $4.6M |
| Bank of America Corp. | 0.00% | Add +48.0% | 86,384 | $4.5M |
| Franklin Resources Inc. | 0.00% | Add +669.4% | 85,098 | $4.4M |
| Raymond James Financial Inc. | 0.00% | Add +1.9% | 81,360 | $4.2M |
| Man Group plc | 0.01% | Add +122.3% | 80,652 | $4.2M |
| Rhumbline Advisers | 0.00% | Reduce -0.0% | 77,469 | $4.0M |
| Jane Street Group, LLC | 0.00% | Add +4.0% | 69,358 | $3.6M |
| Ieq Capital, LLC | 0.01% | Add +2.1% | 60,743 | $3.2M |
| Maltese Capital Management LLC | 0.62% | Reduce -12.4% | 59,540 | $3.1M |
| Legal & General Group Plc | 0.00% | Reduce -9.1% | 57,854 | $3.0M |
| Millennium Management | 0.00% | Reduce -83.5% | 56,201 | $2.9M |
| Ameriprise Financial Inc. | 0.00% | Reduce -8.1% | 49,996 | $2.6M |
| Swiss National Bank | 0.00% | Reduce -1.9% | 46,900 | $2.4M |
| WINTON GROUP Ltd | 0.09% | Add +0.5% | 46,577 | $2.4M |
| SG Americas Securities, LLC | 0.00% | Add +39.0% | 45,171 | $2.4M |
| Jacobs Levy Equity Management, Inc. | 0.01% | Add +13.2% | 44,291 | $2.3M |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | 0.00% | Add +1.8% | 43,500 | $2.3M |
| Royce & Associates LP | 0.02% | No change | 42,934 | $2.2M |
| BNP Paribas Financial Markets | 0.00% | Add +70.3% | 40,026 | $2.1M |
| Trexquant Investment LP | 0.01% | Reduce -31.9% | 38,052 | $2.0M |
| Commonwealth Equity Services, LLC | 0.00% | Reduce -3.7% | 36,357 | $1.9M |
| T. Rowe Price Associates Inc. | 0.00% | Add +9.1% | 36,184 | $1.9M |
| Voya Investment Management LLC | 0.00% | Reduce -0.6% | 35,429 | $1.8M |
| Assenagon Asset Management S.A. | 0.00% | New | 35,192 | $1.8M |
| JPMorgan Chase & Co. | 0.00% | Reduce -59.1% | 35,321 | $1.8M |
| State of Tennessee, Department of Treasury | 0.01% | Add +201.6% | 32,041 | $1.7M |
| Dark Forest Capital Management LP | 0.14% | Reduce -52.6% | 30,274 | $1.6M |
| LPL Financial LLC | 0.00% | Add +5.2% | 27,192 | $1.4M |
| Alliancebernstein L.P. | 0.00% | No change | 29,520 | $1.4M |
| Cwm, LLC | 0.00% | Add +5.4% | 26,300 | $1.4M |
| Cerity Partners LLC | 0.00% | Add +6.5% | 26,176 | $1.4M |
| Prudential Financial Inc. | 0.00% | Add +9.6% | 25,652 | $1.3M |
| Deutsche Bank AG | 0.00% | Add +10.8% | 25,021 | $1.3M |
| Point72 Asset Management | 0.00% | Reduce -67.1% | 23,670 | $1.2M |
| Connor, Clark & Lunn Investment Management Ltd. | 0.00% | Reduce -15.1% | 22,817 | $1.2M |
| Healthcare of Ontario Pension Plan Trust Fund | 0.00% | No change | 22,713 | $1.2M |
| CANADA LIFE ASSURANCE Co | 0.00% | Reduce -8.4% | 21,852 | $1.1M |
| Cypress Wealth Services, LLC | 0.16% | No change | 21,775 | $1.1M |
| Susquehanna International Group, LLP | 0.00% | New | 20,229 | $1.1M |
| Mariner, LLC | 0.00% | Add +13.4% | 20,193 | $1.1M |
| XTX Topco Ltd | 0.02% | New | 19,667 | $1.0M |
| Citigroup Inc. | 0.00% | Reduce -15.1% | 19,095 | $996K |
| California State Teachers Retirement System | 0.00% | Reduce -21.6% | 19,026 | $992K |
| Edgestream Partners, L.P. | 0.03% | New | 17,007 | $887K |
| Sei Investments Co. | 0.00% | Reduce -36.3% | 16,727 | $873K |
| Thrivent Financial for Lutherans | 0.00% | Reduce -4.1% | 16,435 | $857K |
| Rafferty Asset Management, LLC | 0.00% | Reduce -29.6% | 15,155 | $790K |
| Royal Bank of Canada | 0.00% | Add +1.9% | 15,039 | $784K |
| VANGUARD ASSET MANAGEMENT, Ltd | 0.00% | — | 14,676 | $765K |
| SummerHaven Investment Management, LLC | 0.46% | Reduce -12.6% | 14,368 | $749K |
| Vanguard Global Advisers, LLC | 0.00% | — | 14,258 | $744K |
| Horizon Investments, LLC | 0.01% | Add +10.4% | 14,048 | $726K |
| Wells Fargo & Company | 0.00% | Reduce -60.9% | 13,846 | $722K |
| KLP Kapitalforvaltning As | 0.00% | No change | 13,700 | $714K |
| Wealth Enhancement Advisory Services, LLC | 0.00% | Reduce -0.8% | 13,546 | $702K |
| State of Alaska, Department of Revenue | 0.01% | Reduce -4.3% | 13,203 | $687K |
| Stifel Financial Corp. | 0.00% | Add +0.9% | 13,124 | $684K |
| Illinois Municipal Retirement Fund | 0.01% | Reduce -5.4% | 12,973 | $677K |
| MetLife Investment Management, LLC | 0.00% | Reduce -94.4% | 12,735 | $664K |
| Barclays PLC | 0.00% | Reduce -72.7% | 12,435 | $648K |
| Engineers Gate Manager LP | 0.01% | Add +16.7% | 12,243 | $638K |
| Odyssean, LLC | 0.23% | New | 12,167 | $635K |
| Hennion & Walsh Asset Management, Inc. | 0.02% | Add +14.2% | 12,106 | $631K |
| HSBC Holdings PLC | 0.00% | No change | 11,945 | $624K |
| FMR LLC | 0.00% | Reduce -61.0% | 11,840 | $617K |
| Janus Henderson Group PLC | 0.00% | No change | 11,748 | $613K |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. | 0.00% | Reduce -0.9% | 11,146 | $581K |
| Mercer Global Advisors Inc. | 0.00% | Add +15.0% | 11,073 | $577K |
| Louisiana State Employees Retirement System | 0.01% | Reduce -4.4% | 10,900 | $568K |
| O'shaughnessy Asset Management, LLC | 0.00% | Reduce -8.9% | 10,719 | $559K |
| Perigon Wealth Management, LLC | 0.01% | Reduce -2.4% | 10,500 | $548K |
| Inspire Investing, LLC | 0.03% | Add +0.8% | 9,851 | $514K |
| Manufacturers Life Insurance Company, The | 0.00% | Reduce -6.7% | 9,654 | $503K |
| Quantinno Capital Management LP | 0.00% | Reduce -20.9% | 9,180 | $479K |
| Neuberger Berman Group LLC | 0.00% | New | 9,096 | $474K |
| Meeder Asset Management Inc. | 0.02% | No change | 8,127 | $424K |
| Vanguard Investments Australia, Ltd. | 0.00% | — | 7,962 | $415K |
| Panagora Asset Management Inc. | 0.00% | No change | 7,926 | $413K |
| Marshall Wace, LLP | 0.00% | Reduce -29.0% | 7,900 | $412K |
| Aigen Investment Management, LP | 0.11% | New | 7,844 | $409K |
| Victory Capital Management Inc. | 0.00% | Reduce -1.0% | 7,753 | $404K |
| Schonfeld Strategic Advisors LLC | 0.00% | Add +55.7% | 7,615 | $397K |
| State Board of Administration of Florida Retirement System | 0.00% | No change | 7,314 | $381K |
| Amalgamated Bank | 0.00% | Reduce -2.0% | 7,077 | $369K |
| Police & Firemen's Retirement System of New Jersey | 0.00% | No change | 7,072 | $369K |
| SAM Advisors, LLC | 0.11% | No change | 6,794 | $354K |
| Entropy Technologies, LP | 0.02% | New | 6,758 | $352K |
| Canada Pension Plan Investment Board | 0.00% | No change | 6,600 | $344K |
| Yousif Capital Management, LLC | 0.00% | Reduce -3.2% | 6,545 | $341K |
| Intech Investment Management LLC | 0.00% | Reduce -37.4% | 6,509 | $339K |
| Arizona State Retirement System | 0.00% | Reduce -3.8% | 6,507 | $339K |
| Teachers Retirement System of the State of Kentucky | 0.00% | No change | 6,442 | $336K |
| Two Sigma Securities, LLC | 0.04% | Reduce -4.2% | 6,307 | $329K |
| Commonwealth of Pennsylvania Public School Empls Retrmt SYS | 0.00% | Reduce -1.4% | 6,089 | $318K |
| Curi Capital, LLC | 0.01% | Add +1.9% | 6,053 | $316K |
| Creative Planning | 0.00% | Add +11.9% | 5,697 | $297K |
| Oregon Public Employees Retirement Fund | 0.00% | Reduce -1.8% | 5,624 | $293K |
| D. E. Shaw & Co. | 0.00% | Reduce -35.0% | 5,549 | $289K |
| Handelsbanken Fonder AB | 0.00% | No change | 5,530 | $288K |
| Fifth Third Bancorp | 0.00% | Add +6915.4% | 5,472 | $285K |
| West Wealth Group, LLC | 0.05% | Add +0.9% | 5,184 | $270K |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 0.00% | No change | 5,088 | $265K |
| Allianz Asset Management GmbH | 0.00% | No change | 5,080 | $265K |
| Captrust Financial Advisors | 0.00% | Add +2.4% | 4,876 | $254K |
| Glenmede Trust Co. NA | 0.00% | Reduce -0.1% | 4,461 | $233K |
| Tower Research Capital LLC (TRC) | 0.01% | Add +80.7% | 4,421 | $231K |
| Allworth Financial LP | 0.00% | Reduce -2.3% | 4,378 | $228K |
| Teacher Retirement System of Texas | 0.00% | Reduce -13.7% | 4,313 | $225K |
| US Bancorp \de | 0.00% | Reduce -0.1% | 4,300 | $224K |
| Y-Intercept (Hong Kong) Ltd | 0.00% | Reduce -92.1% | 4,002 | $209K |
| One Capital Management, LLC | 0.01% | New | 4,000 | $209K |
| Los Angeles Capital Management LLC | 0.00% | Reduce -4.4% | 3,786 | $197K |
| Public Employees Retirement Association of Colorado | 0.00% | No change | 3,784 | $197K |
| GAMMA Investing LLC | 0.01% | Add +46.7% | 2,437 | $127K |
| New York State Teachers Retirement System | 0.00% | Reduce -93.9% | 2,240 | $117K |
| Public Employees Retirement System of Ohio | 0.00% | Add +0.8% | 2,147 | $112K |
| Ameritas Investment Partners, Inc. | 0.00% | No change | 2,062 | $108K |
| Russell Investments Group, Ltd. | 0.00% | Reduce -9.3% | 1,852 | $97K |
| PNC Financial Services Group, Inc. | 0.00% | Add +57.4% | 1,660 | $87K |
| Farther Finance Advisors, LLC | 0.00% | Add +1.1% | 1,477 | $77K |
| Golden State Wealth Management, LLC | 0.01% | No change | 1,245 | $65K |
| EverSource Wealth Advisors, LLC | 0.00% | Add +3.6% | 1,213 | $63K |
| Northwestern Mutual Wealth Management Co. | 0.00% | Reduce -2.1% | 1,000 | $52K |
| MAI Capital Management | 0.00% | Add +12.2% | 881 | $46K |
| Sterling Capital Management LLC | 0.00% | Reduce -43.9% | 787 | $41K |
| Hantz Financial Services, Inc. | 0.00% | Reduce -9.5% | 705 | $37K |
| Pinnacle Wealth Planning Services, Inc. | 0.00% | Reduce -2.9% | 697 | $36K |
| Parallel Advisors, LLC | 0.00% | No change | 635 | $33K |
| Bessemer Group Inc. | 0.00% | Add +42.6% | 636 | $33K |
| Harbor Capital Advisors, Inc. | 0.00% | Add +296.4% | 555 | $29K |
| Essential Partners LLC | 0.01% | Reduce -1.9% | 519 | $27K |
| Whittier Trust Co. | 0.00% | No change | 500 | $26K |
| Nisa Investment Advisors, LLC | 0.00% | Add +24.9% | 442 | $23K |
| IFP Advisors, Inc | 0.00% | Reduce -7.3% | 409 | $21K |
| Jones Financial Companies LLLP | 0.00% | Add +310.0% | 410 | $21K |
| Salomon & Ludwin, LLC | 0.00% | Add +66.0% | 317 | $16K |
| Osaic Holdings, Inc. | 0.00% | Reduce -2.0% | 290 | $15K |
| Rothschild Investment LLC | 0.00% | Add +18.3% | 252 | $13K |
| Kimelman & Baird, LLC | 0.00% | Reduce -50.5% | 250 | $13K |
| STRS Ohio | 0.00% | Reduce -89.5% | 200 | $10K |
| Versant Capital Management, Inc | 0.00% | Add +6.5% | 196 | $10K |
| Pacific Center for Financial Services | 0.00% | No change | 190 | $10K |
| True Wealth Design, LLC | 0.00% | Reduce -2.0% | 149 | $8K |
| UMB Bank, n.a. | 0.00% | Add +4.3% | 146 | $8K |
| Arax Advisory Partners | 0.00% | Add +4700.0% | 144 | $8K |
| Boreal Capital Management LLC | 0.01% | No change | 142 | $7K |
| Advisory Services Network, LLC | 0.00% | New | 136 | $7K |
| Cedar Mountain Advisors, LLC | 0.00% | Add +3250.0% | 134 | $7K |
| Smartleaf Asset Management LLC | 0.00% | Reduce -48.3% | 106 | $5K |
| MassMutual Private Wealth & Trust, FSB | 0.00% | Reduce -57.8% | 100 | $5K |
| NewEdge Advisors, LLC | 0.00% | No change | 100 | $5K |
| McGuire Capital Advisors Inc. | 0.00% | No change | 99 | $5K |
| Quarry LP | 0.00% | Add +11.6% | 96 | $5K |
| Twin Peaks Wealth Advisors, LLC | 0.00% | New | 75 | $4K |
| Mitsubishi UFJ Asset Management Co., Ltd. | 0.00% | No change | 73 | $4K |
| Kilter Group LLC | 0.00% | New | 58 | $3K |
| Root Financial Partners, LLC | 0.00% | New | 49 | $3K |
| Valued Wealth Advisors LLC | 0.00% | New | 47 | $2K |
| Osbon Capital Management LLC | 0.00% | No change | 45 | $2K |
| Parkside Financial Bank & Trust | 0.00% | No change | 40 | $2K |
| Sound Income Strategies, LLC | 0.00% | Add +2.6% | 39 | $2K |
| SJS Investment Consulting Inc. | 0.00% | Add +60.0% | 32 | $2K |
| Basecamp Wealth Advisors LLC | 0.00% | New | 30 | $2K |
| Bare Financial Services, Inc | 0.00% | Add +100.0% | 22 | $1K |
| Keating Financial Advisory Services, Inc. | 0.00% | Add +1900.0% | 20 | $1K |
| Sunbelt Securities, Inc. | 0.00% | Reduce -13.0% | 20 | $1K |
| Covestor Ltd | 0.00% | No change | 12 | $1K |
| Larson Financial Group LLC | 0.00% | No change | 19 | $991 |
| Quadrant Capital Group LLC | 0.00% | Reduce -98.7% | 15 | $783 |
| Rockefeller Capital Management L.P. | 0.00% | Add +66.7% | 15 | $783 |
| Farmers & Merchants Investments Inc. | 0.00% | Reduce -16.7% | 15 | $782 |
| WPG Advisers, LLC | 0.00% | Reduce -47.4% | 10 | $522 |
| SBI Securities Co., Ltd. | 0.00% | Reduce -50.0% | 3 | $156 |
"% of holder's portfolio" is WABC's weight in each manager's 13F, not the share of Westamerica Bancorporation the manager owns.