WESTAMERICA BANCORPORATION (WABC)
Institutional ownership reported to the SEC as of Q2 2026, across 31 quarters.
197
Reporting holders
$1.1B
Reported value
79.9%
Of shares outstanding
0.1%
Held as options
+9
Holder change
Institutions report 18,463,476 shares against 23,111,153 outstanding. Shares only - option lines are excluded, which is why this can be compared with the company at all. The count comes from the cover page of the company's own most recent report, so it is dated when that was filed rather than at quarter end.
Options share is the part of reported value carried in derivative lines rather than shares. A high figure means institutions are expressing a view on this security without owning much of it.
Holders
| Filer | Value | Shares | Their book | Held | Change |
|---|---|---|---|---|---|
| BlackRock, Inc. | $195.7M | 3,335,703 | 0.00% | 8q | -3.3%-$6.7M |
| AMERICAN CENTURY COMPANIES INC | $114.9M | 1,958,072 | 0.05% | 31q | +2.7%+$3.0M |
| VANGUARD PORTFOLIO MANAGEMENT LLC | $101.0M | 1,720,645 | 0.00% | 2q | -2.2%-$2.3M |
| STATE STREET CORP | $81.8M | 1,394,074 | 0.00% | 31q | +15.9%+$11.2M |
| VANGUARD CAPITAL MANAGEMENT LLC | $60.7M | 1,034,531 | 0.00% | 2q | -5.5%-$3.6M |
| DIMENSIONAL FUND ADVISORS LP | $57.7M | 983,639 | 0.01% | 31q | +4.1%+$2.3M |
| GEODE CAPITAL MANAGEMENT, LLC | $36.8M | 627,073 | 0.00% | 31q | +2.3%+$816.3K |
| AQR CAPITAL MANAGEMENT LLC | $29.1M | 495,223 | 0.01% | 16q | +24.1%+$5.6M |
| Nuveen, LLC | $22.4M | 382,288 | 0.01% | 6q | +6.4%+$1.3M |
| Rhino Investment Partners, Inc | $19.1M | 324,824 | 5.77% | new | NEW |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | $19.0M | 324,191 | 0.01% | 13q | +14.2%+$2.4M |
| TWO SIGMA INVESTMENTS, LP | $17.8M | 303,836 | 0.01% | 10q | -13.9%-$2.9M |
| NORTHERN TRUST CORP | $17.8M | 303,422 | 0.00% | 31q | +5.0%+$847.5K |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | $17.3M | 294,930 | 0.00% | 31q | -1.0%-$175.7K |
| Sixth Street Partners Management Company, L.P. | $17.3M | 294,930 | 0.00% | new | NEW |
| RBO & CO LLC | $16.2M | 275,551 | 2.57% | 31q | -2.4%-$390.0K |
| MACKENZIE FINANCIAL CORP | $14.2M | 242,861 | 0.01% | new | NEW |
| MORGAN STANLEY | $13.5M | 229,998 | 0.00% | 35q | -9.9%-$1.5M |
| GOLDMAN SACHS GROUP INC | $13.4M | 228,465 | 0.00% | 31q | +0.8%+$102.4K |
| Bank of New York Mellon Corp | $12.4M | 211,466 | 0.00% | 31q | +0.9%+$114.6K |
| Public Sector Pension Investment Board | $9.5M | 161,488 | 0.01% | 31q | +83.3%+$4.3M |
| VANGUARD FIDUCIARY TRUST CO | $9.1M | 154,702 | 0.00% | 2q | -3.3%-$306.9K |
| PRINCIPAL FINANCIAL GROUP INC | $8.7M | 147,747 | 0.00% | 31q | -2.3%-$199.6K |
| Leeward Investments, LLC - MA | $7.9M | 135,284 | 0.36% | 11q | -2.1%-$169.9K |
| UBS Group AG | $7.8M | 132,554 | 0.00% | 31q | -17.1%-$1.6M |
| Invesco Ltd. | $7.2M | 122,748 | 0.00% | 31q | -7.2%-$555.6K |
| FIRST TRUST ADVISORS LP | $6.8M | 115,550 | 0.00% | 31q | -11.8%-$905.4K |
| NEW YORK STATE COMMON RETIREMENT FUND | $6.6M | 112,989 | 0.01% | 31q | -12.7%-$963.9K |
| CITADEL ADVISORS LLC | $6.6M | 108,509 | 0.00% | 10q | -12.9%-$977.8K |
| Qube Research & Technologies Ltd | $6.4M | 109,298 | 0.01% | 10q | -36.2%-$3.6M |
| FRANKLIN RESOURCES INC | $5.2M | 88,909 | 0.00% | 13q | +4.5%+$223.6K |
| Man Group plc | $5.1M | 87,692 | 0.01% | 6q | +8.7%+$413.0K |
| RAYMOND JAMES FINANCIAL INC | $4.8M | 81,407 | 0.00% | 7q | HELD |
| BANK OF AMERICA CORP /DE/ | $4.4M | 74,309 | 0.00% | 31q | -14.0%-$708.4K |
| RENAISSANCE TECHNOLOGIES LLC | $4.3M | 72,499 | 0.01% | 7q | -52.4%-$4.7M |
| WINTON GROUP Ltd | $4.1M | 69,033 | 0.13% | 25q | +48.2%+$1.3M |
| RHUMBLINE ADVISERS | $3.7M | 63,479 | 0.00% | 31q | -18.1%-$820.8K |
| IEQ CAPITAL, LLC | $3.6M | 60,977 | 0.02% | 7q | HELD |
| Legal & General Group Plc | $3.2M | 53,910 | 0.00% | 31q | -6.8%-$231.4K |
| MALTESE CAPITAL MANAGEMENT LLC | $2.8M | 47,500 | 0.51% | 13q | -20.2%-$706.4K |
| AMERIPRISE FINANCIAL INC | $2.7M | 46,787 | 0.00% | 31q | -53.2%-$3.1M |
| Swiss National Bank | $2.6M | 45,000 | 0.00% | 31q | -4.1%-$111.5K |
| DARK FOREST CAPITAL MANAGEMENT LP | $2.5M | 43,130 | 0.16% | 7q | +42.5%+$754.3K |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | $2.3M | 39,726 | 0.00% | 31q | -8.7%-$221.4K |
| ROYCE & ASSOCIATES LP | $2.3M | 39,411 | 0.02% | 9q | -8.2%-$206.7K |
| IFG Advisory, LLC | $2.2M | 37,972 | 0.08% | new | NEW |
| JACOBS LEVY EQUITY MANAGEMENT, INC | $2.2M | 36,941 | 0.01% | 6q | -16.6%-$431.2K |
| MERCER GLOBAL ADVISORS INC /ADV | $2.2M | 36,932 | 0.00% | 4q | +233.5%+$1.5M |
| COMMONWEALTH EQUITY SERVICES, LLC | $2.1M | 36,417 | 0.00% | 14q | HELD |
| VOYA INVESTMENT MANAGEMENT LLC | $2.1M | 36,292 | 0.00% | 31q | +2.4%+$50.6K |
| Destination Wealth Management | $2.1M | 36,168 | 0.05% | new | NEW |
| XTX Topco Ltd | $2.0M | 34,433 | 0.03% | 2q | +75.1%+$866.3K |
| JPMORGAN CHASE & CO | $1.9M | 31,576 | 0.00% | 31q | -10.6%-$225.7K |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | $1.9M | 12,317 | 0.00% | 2q | -39.1%-$1.2M |
| Mariner, LLC | $1.6M | 27,399 | 0.00% | 4q | +35.7%+$422.8K |
| Connor, Clark & Lunn Investment Management Ltd. | $1.6M | 27,060 | 0.00% | 9q | +18.6%+$248.9K |
| WELLS FARGO & COMPANY/MN | $1.6M | 26,863 | 0.00% | 31q | -3.0%-$48.6K |
| CITIGROUP INC | $1.6M | 26,794 | 0.00% | 31q | +40.3%+$451.7K |
| LPL Financial LLC | $1.6M | 26,760 | 0.00% | 21q | -1.6%-$25.3K |
| Cerity Partners LLC | $1.6M | 26,738 | 0.00% | 8q | +2.1%+$33.0K |
| ALLIANCEBERNSTEIN L.P. | $1.5M | 29,581 | 0.00% | 31q | HELD |
| DEUTSCHE BANK AG\ | $1.5M | 25,225 | 0.00% | 34q | +0.8%+$12.0K |
| PRUDENTIAL FINANCIAL INC | $1.4M | 24,512 | 0.00% | 31q | -4.4%-$66.9K |
| Creative Planning | $1.4M | 24,355 | 0.00% | 3q | +327.5%+$1.1M |
| BNP PARIBAS FINANCIAL MARKETS | $1.2M | 21,059 | 0.00% | 31q | -47.4%-$1.1M |
| Louisiana State Employees Retirement System | $1.2M | 21,200 | 0.01% | 31q | +94.5%+$569.8K |
| SEI INVESTMENTS CO | $1.2M | 19,612 | 0.00% | 31q | +17.2%+$169.3K |
| BARCLAYS PLC | $1.1M | 19,431 | 0.00% | 31q | +56.3%+$410.5K |
| WEALTH ENHANCEMENT ADVISORY SERVICES, LLC | $1.1M | 18,131 | 0.00% | 5q | +33.8%+$267.5K |
| VANGUARD ASSET MANAGEMENT, Ltd | $1.1M | 17,923 | 0.00% | 2q | +22.1%+$190.5K |
| State of Tennessee, Department of Treasury | $1.0M | 17,602 | 0.00% | 31q | -45.1%-$847.1K |
| Russell Investments Group, Ltd. | $998.6K | 17,035 | 0.00% | 31q | +819.8%+$890.1K |
| Cypress Wealth Services, LLC | $974.7K | 16,613 | 0.12% | 21q | -23.7%-$302.9K |
| Assenagon Asset Management S.A. | $954.7K | 16,272 | 0.00% | 2q | -53.8%-$1.1M |
| Rafferty Asset Management, LLC | $944.6K | 16,100 | 0.00% | 25q | +6.2%+$55.4K |
| Quantinno Capital Management LP | $911.0K | 15,527 | 0.00% | 4q | +69.1%+$372.4K |
| ROYAL BANK OF CANADA | $881.0K | 15,031 | 0.00% | 31q | HELD |
| SummerHaven Investment Management, LLC | $843.0K | 14,368 | 0.45% | 4q | HELD |
| Horizon Investments, LLC | $839.9K | 14,431 | 0.01% | 5q | +2.7%+$22.3K |
| MetLife Investment Management, LLC | $819.2K | 13,962 | 0.00% | 32q | +9.6%+$72.0K |
| KLP KAPITALFORVALTNING AS | $803.8K | 13,700 | 0.00% | 7q | HELD |
| OSAIC HOLDINGS, INC. | $801.3K | 13,657 | 0.00% | 26q | +4609.3%+$784.2K |
| STIFEL FINANCIAL CORP | $776.5K | 13,234 | 0.00% | 11q | +0.8%+$6.5K |
| Illinois Municipal Retirement Fund | $752.9K | 12,832 | 0.01% | 12q | -1.1%-$8.3K |
| Polymer Capital Management (US) LLC | $745.0K | 12,698 | 0.10% | new | NEW |
| Odyssean, LLC | $713.8K | 12,167 | 0.12% | 2q | HELD |
| Campbell & CO Investment Adviser LLC | $689.3K | 11,748 | 0.04% | new | NEW |
| Jupiter Topco LLC | $689.3K | 11,748 | 0.00% | new | FIRST |
| Hennion & Walsh Asset Management, Inc. | $686.0K | 11,693 | 0.02% | 7q | -3.4%-$24.2K |
| Inspire Investing, LLC | $679.2K | 11,576 | 0.03% | 22q | +17.5%+$101.2K |
| Atom Investors LP | $654.0K | 11,147 | 0.06% | new | NEW |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. | $644.2K | 10,980 | 0.00% | 9q | -1.5%-$9.7K |
| TEACHER RETIREMENT SYSTEM OF TEXAS | $611.3K | 10,420 | 0.00% | 4q | +141.6%+$358.3K |
| Perigon Wealth Management, LLC | $605.7K | 10,324 | 0.01% | 8q | -1.7%-$10.3K |
| NEUBERGER BERMAN GROUP LLC | $592.0K | 10,091 | 0.00% | 2q | +10.9%+$58.4K |
| D. E. Shaw & Co., Inc. | $568.7K | 9,693 | 0.00% | 6q | +74.7%+$243.1K |
| MANUFACTURERS LIFE INSURANCE COMPANY, THE | $544.8K | 9,285 | 0.00% | 31q | -3.8%-$21.6K |
| Merit Financial Group, LLC | $539.1K | 9,189 | 0.00% | new | NEW |
| O'SHAUGHNESSY ASSET MANAGEMENT, LLC | $514.8K | 8,774 | 0.00% | 11q | -18.1%-$114.1K |
| Vanguard Global Advisers, LLC | $489.4K | 8,341 | 0.00% | 2q | -41.5%-$347.2K |
Five percent filings
Anyone crossing 5% of a company must say so within days - far sooner than the next quarterly holdings report. A 13D declares an intent to influence the company; a 13G is the passive version. See all activist filings →
| Filed | Form | Filer | % of class |
|---|---|---|---|
| 2026-08-14 | 13G/A | American Century Investment Management, Inc.with 2 co-filers | 8.3% |
| 2026-08-07 | 13G | STATE STREET CORPORATION | 5.9% |
Quarter by quarter
Coverage begins with the quarter ending 2018-12-31. Earlier filings exist only as occasional late amendments, too sparse to describe a market, so they are not shown.
| Quarter | Holders | Value | Shares | New | Added | Trimmed | Options |
|---|---|---|---|---|---|---|---|
| Q2 2026 | 197 | $1.1B | 18,463,476 | 33 | 64 | 60 | 0.1% |
| Q1 2026 | 188 | $947.8M | 18,158,665 | 15 | 63 | 71 | 0.1% |
| Q4 2025 | 198 | $926.4M | 19,417,586 | 23 | 64 | 75 | 0.0% |
| Q3 2025 | 197 | $957.9M | 19,209,566 | 27 | 66 | 69 | 0.0% |
| Q2 2025 | 187 | $946.1M | 19,466,515 | 22 | 57 | 63 | 0.6% |
| Q1 2025 | 187 | $1.0B | 20,146,636 | 20 | 59 | 67 | 0.0% |
| Q4 2024 | 187 | $1.0B | 19,914,482 | 21 | 59 | 54 | 0.0% |
| Q3 2024 | 174 | $975.1M | 19,773,119 | 23 | 45 | 65 | 0.0% |
| Q2 2024 | 167 | $956.6M | 19,772,651 | 16 | 47 | 59 | 0.0% |
| Q1 2024 | 171 | $1.0B | 21,459,167 | 33 | 49 | 53 | 0.1% |
| Q4 2023 | 157 | $1.2B | 20,869,914 | 22 | 43 | 48 | 0.0% |
| Q3 2023 | 153 | $837.4M | 19,420,631 | 15 | 45 | 55 | 0.0% |
| Q2 2023 | 155 | $751.4M | 19,677,730 | 22 | 51 | 59 | 0.0% |
| Q1 2023 | 154 | $843.6M | 19,099,635 | 14 | 66 | 50 | 0.1% |
| Q4 2022 | 163 | $1.0B | 17,194,988 | 45 | 57 | 32 | 0.0% |
| Q3 2022 | 176 | $1.1B | 20,838,283 | 22 | 70 | 48 | 0.0% |
| Q2 2022 | 164 | $1.2B | 20,967,640 | 29 | 43 | 55 | 0.0% |
| Q1 2022 | 145 | $1.3B | 20,984,532 | 10 | 46 | 49 | 0.0% |
| Q4 2021 | 156 | $1.2B | 20,435,762 | 12 | 46 | 46 | 0.0% |
| Q3 2021 | 153 | $1.2B | 20,444,277 | 9 | 48 | 54 | 0.1% |
| Q2 2021 | 160 | $1.2B | 20,609,884 | 14 | 51 | 60 | 0.3% |
| Q1 2021 | 164 | $1.3B | 20,450,789 | 18 | 58 | 58 | 0.3% |
| Q4 2020 | 170 | $1.2B | 20,549,599 | 19 | 52 | 54 | 0.1% |
| Q3 2020 | 167 | $1.1B | 20,810,727 | 20 | 47 | 55 | 0.1% |
| Q2 2020 | 163 | $1.2B | 21,054,414 | 31 | 49 | 49 | 0.1% |
| Q1 2020 | 150 | $1.3B | 21,812,261 | 8 | 52 | 49 | 0.1% |
| Q4 2019 | 164 | $1.5B | 22,654,349 | 15 | 48 | 41 | 0.1% |
| Q3 2019 | 163 | $1.4B | 22,113,748 | 13 | 48 | 39 | 0.0% |
| Q2 2019 | 164 | $1.4B | 22,244,877 | 16 | 42 | 40 | 0.1% |
| Q1 2019 | 158 | $1.4B | 22,282,930 | 15 | 49 | 41 | 0.0% |
| Q4 2018 | 152 | $1.3B | 23,388,463 | 3 | 1 | 3 | 0.1% |