WESTAMERICA BANCORPORATION WABC
COM · Common Stock · CUSIP 957090103
Bank in the United States
- SectorFinancials
- IndustryNational Commercial Banks
- HeadquartersSan Rafael, CA
- Websitewestamerica.com
- FilingsSEC EDGAR
* Summed across managers. Shares that two managers' reports both contain – a subsidiary's holdings that its parent's report includes too, or a sub-adviser's in its client's – are counted once ($1.9m this quarter). Holder counts are more reliable. Shares outstanding: 23.1m as of 2026-07-30, from the company's own SEC filing; the percentage can still exceed 100%: lent-out shares are counted by the lender and the buyer, and some reports overlap without saying so. Implied quarter-end price ≈ $58.66. Options: 3 managers hold calls ($1.5m notional), 0 hold puts (—).
Trends to Q2 2026
Institutional holders
Managers reporting a position, each quarter
Numbers
| Quarter | Holders |
|---|---|
| Q3 2022 | 178 |
| Q4 2022 | 213 |
| Q1 2023 | 192 |
| Q2 2023 | 190 |
| Q3 2023 | 180 |
| Q4 2023 | 178 |
| Q1 2024 | 192 |
| Q2 2024 | 189 |
| Q3 2024 | 195 |
| Q4 2024 | 209 |
| Q1 2025 | 206 |
| Q2 2025 | 206 |
| Q3 2025 | 216 |
| Q4 2025 | 216 |
| Q1 2026 | 204 |
| Q2 2026 | 214 |
Buyers vs sellers
Managers adding to or starting a position, vs cutting or selling out
Numbers
| Quarter | Bought or added | Cut or sold out |
|---|---|---|
| Q3 2024 | 82 | 94 |
| Q4 2024 | 92 | 79 |
| Q1 2025 | 85 | 101 |
| Q2 2025 | 92 | 99 |
| Q3 2025 | 102 | 94 |
| Q4 2025 | 92 | 112 |
| Q1 2026 | 84 | 109 |
| Q2 2026 | 104 | 94 |
Calls vs puts
Options held, notional value, last 4 quarters. P/C = puts ÷ calls
Numbers
| Quarter | Calls | Puts | P/C |
|---|---|---|---|
| Q3 2025 | $259.0k | $0 | 0.00 |
| Q4 2025 | $4.8k | $4.8k | 1.00 |
| Q1 2026 | $990.9k | $5.2k | 0.01 |
| Q2 2026 | $1.5m | $0 | 0.00 |
Biggest buyers
| Rhino Investment Partners, Inc | New | +324.8k |
| MACKENZIE FINANCIAL CORP | New | +242.9k |
| STATE STREET CORP | Added | +190.8k |
| AQR CAPITAL MANAGEMENT LLC | Added | +96.2k |
| AMERICAN CENTURY COMPANIES INC | Added | +51.2k |
| ACADIAN ASSET MANAGEMENT LLC | New | +45.3k |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | Added | +40.4k |
| DIMENSIONAL FUND ADVISORS LP | Added | +38.9k |
| IFG Advisory, LLC | New | +38.0k |
| Destination Wealth Management | New | +36.2k |
Biggest sellers
| PALISADE CAPITAL MANAGEMENT, LP | Sold out | -305.0k |
| BlackRock, Inc. | Reduced | -113.6k |
| JUPITER ASSET MANAGEMENT LTD | Sold out | -97.7k |
| HRT FINANCIAL LP | Sold out | -94.7k |
| RENAISSANCE TECHNOLOGIES LLC | Reduced | -79.9k |
| JANE STREET GROUP, LLC | Sold out | -69.4k |
| Qube Research & Technologies Ltd | Reduced | -62.1k |
| VANGUARD CAPITAL MANAGEMENT LLC | Reduced | -60.5k |
| MILLENNIUM MANAGEMENT LLC | Sold out | -56.2k |
| TWO SIGMA INVESTMENTS, LP | Reduced | -49.2k |
Biggest calls
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Added | $1.1m19.6k shares |
| CITADEL ADVISORS LLC | New | $234.7k4.0k shares |
| SIMPLEX TRADING, LLC | Unchanged | $76.3k1.3k shares |
Biggest puts
| None |
Options at notional value: the value of the shares the contracts control, as filers report them, not what the options cost. Not included in the holders, shares or buying above.
Major shareholders (over 5%)
Anyone who owns more than 5% of a class of the company's shares has to say so: on Schedule 13D if they may try to influence or control the company, on 13G if they're a passive investor, and update it as the stake changes. Each holder's latest filing, from 19 Dec 2024 on; percentages are of the share class, as the holder worked them out.
| Holder | Stake |
|---|---|
| AMERICAN CENTURY INVESTMENT MANAGEMENT INC 13G · institution filed 2026-08-14 | 8.3% |
| VANGUARD PORTFOLIO MANAGEMENT LLC 13G · institution new · filed 2026-04-29 | 7.3% |
| STATE STREET CORP 13G · institution +1.3 pts · filed 2026-08-07 | 5.9% |
| VANGUARD CAPITAL MANAGEMENT LLC 13G · institution new · filed 2026-04-30 | 5.3% |
Fell to 5% or below in the last year: VANGUARD GROUP INC (0.0%, 2026-03-27; now reported by VANGUARD PORTFOLIO MANAGEMENT LLC)
Insider purchases and sales since 1 Apr 2026
Shares bought or sold by the company's own officers, directors and 10% owners, in the open market or privately, as they reported to the SEC on Form 4 (due within two business days of the trade). Grants, option exercises, shares withheld for tax and gifts aren't included.
Officers and directors buying vs selling
Number of people, by quarter (10% owners not included)
Numbers
| Quarter | Buying | Bought | Selling | Sold | Sold under a plan |
|---|---|---|---|---|---|
| Q4 2024 | 0 | — | 0 | — | — |
| Q1 2025 | 0 | — | 1 | $12.8k | — |
| Q2 2025 | 2 | $24.9k | 2 | $143.1k | — |
| Q3 2025 | 0 | — | 0 | — | — |
| Q4 2025 | 0 | — | 0 | — | — |
| Q1 2026 | 0 | — | 0 | — | — |
| Q2 2026 | 1 | $3.3k | 1 | $40.9k | — |
| Q3 2026 | 0 | — | 0 | — | — |
| Date | Insider | Trade | Value |
|---|---|---|---|
| 2026-04-22 | Wondeh Inez Director | Bought | $3.3k61 shares |
| 2026-04-20 | Baker Robert James Jr SVP/Banking Division Manager | Sold | $40.9k759 shares |
Their holding: how much the trade added to or took from the insider's holding (direct, or the trust or fund named). The same trade is sometimes reported by more than one insider, such as a fund and the director who represents it; totals count it once. A value is left blank where the reported price is far from the market price (usually a typo).
Holders, Q2 2026
| Manager | Shares | Change |
|---|---|---|
| BlackRock, Inc. 0.00% of their portfolio | 3.3m $195.7m | Reduced -113.6k |
| AMERICAN CENTURY COMPANIES INC 0.05% of their portfolio | 2.0m $114.9m | Added +51.2k |
| VANGUARD PORTFOLIO MANAGEMENT LLC 0.00% of their portfolio | 1.7m $101.0m | Reduced -38.9k |
| STATE STREET CORP 0.00% of their portfolio | 1.4m $81.8m | Added +190.8k |
| VANGUARD CAPITAL MANAGEMENT LLC 0.00% of their portfolio | 1.0m $60.7m | Reduced -60.5k |
| DIMENSIONAL FUND ADVISORS LP 0.01% of their portfolio | 983.6k $57.7m | Added +38.9k |
| GEODE CAPITAL MANAGEMENT, LLC 0.00% of their portfolio | 627.1k $36.8m | Added +13.9k |
| AQR CAPITAL MANAGEMENT LLC 0.01% of their portfolio | 495.2k $29.1m | Added +96.2k |
| Nuveen, LLC 0.01% of their portfolio | 382.3k $22.4m | Added +22.9k |
| Rhino Investment Partners, Inc 5.77% of their portfolio | 324.8k $19.1m | New |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP 0.01% of their portfolio | 324.2k $19.0m | Added +40.4k |
| TWO SIGMA INVESTMENTS, LP 0.01% of their portfolio | 303.8k $17.8m | Reduced -49.2k |
| NORTHERN TRUST CORP 0.00% of their portfolio | 303.4k $17.8m | Added +14.4k |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC 0.00% of their portfolio | 294.9k $17.3m | Reduced -3.0k |
| RBO & CO LLC 2.57% of their portfolio | 275.6k $16.2m | Reduced -6.6k |
| MACKENZIE FINANCIAL CORP 0.01% of their portfolio | 242.9k $14.2m | New |
| MORGAN STANLEY 0.00% of their portfolio | 230.0k $13.5m | Reduced -25.2k |
| GOLDMAN SACHS GROUP INC 0.00% of their portfolio | 228.5k $13.4m | Added +1.7k |
| Bank of New York Mellon Corp 0.00% of their portfolio | 211.5k $12.4m | Added +2.0k |
| T. Rowe Price Investment Management, Inc. 0.01% of their portfolio | 194.0k $11.4m | Reduced -1.8k |
| VANGUARD FIDUCIARY TRUST CO 0.00% of their portfolio | 154.7k $9.1m | Reduced -5.2k |
| PRINCIPAL FINANCIAL GROUP INC 0.00% of their portfolio | 147.7k $8.7m | Reduced -3.4k |
| Leeward Investments, LLC - MA 0.36% of their portfolio | 135.3k $7.9m | Reduced -2.9k |
| UBS Group AG 0.00% of their portfolio | 132.6k $7.8m | Reduced -27.3k |
| Invesco Ltd. 0.00% of their portfolio | 122.7k $7.2m | Reduced -9.5k |
| FIRST TRUST ADVISORS LP 0.00% of their portfolio | 115.5k $6.8m | Reduced -15.4k |
| NEW YORK STATE COMMON RETIREMENT FUND 0.01% of their portfolio | 113.0k $6.6m | Reduced -16.4k |
| Qube Research & Technologies Ltd 0.01% of their portfolio | 109.3k $6.4m | Reduced -62.1k |
| CITADEL ADVISORS LLC 0.00% of their portfolio | 108.5k $6.4m | Reduced -16.1k |
| FRANKLIN RESOURCES INC 0.00% of their portfolio | 88.9k $5.2m | Added +3.8k |
| Man Group plc 0.01% of their portfolio | 87.7k $5.1m | Added +7.0k |
| RAYMOND JAMES FINANCIAL INC 0.00% of their portfolio | 81.4k $4.8m | Added +47 |
| Public Sector Pension Investment Board 0.01% of their portfolio | 80.7k $4.7m | Reduced -7.4k |
| BANK OF AMERICA CORP /DE/ 0.00% of their portfolio | 74.3k $4.4m | Reduced -12.1k |
| RENAISSANCE TECHNOLOGIES LLC 0.01% of their portfolio | 72.5k $4.3m | Reduced -79.9k |
| WINTON GROUP Ltd 0.13% of their portfolio | 69.0k $4.1m | Added +22.5k |
| RHUMBLINE ADVISERS 0.00% of their portfolio | 63.5k $3.7m | Reduced -14.0k |
| IEQ CAPITAL, LLC 0.02% of their portfolio | 61.0k $3.6m | Added +234 |
| Legal & General Group Plc 0.00% of their portfolio | 53.9k $3.2m | Reduced -3.9k |
| MALTESE CAPITAL MANAGEMENT LLC 0.51% of their portfolio | 47.5k $2.8m | Reduced -12.0k |
| AMERIPRISE FINANCIAL INC 0.00% of their portfolio | 46.8k $2.7m | Reduced -3.2k |
| ACADIAN ASSET MANAGEMENT LLC 0.00% of their portfolio | 45.3k $2.7m | New |
| Swiss National Bank 0.00% of their portfolio | 45.0k $2.6m | Reduced -1.9k |
| PRICE T ROWE ASSOCIATES INC /MD/ 0.00% of their portfolio | 43.4k $2.5m | Added +7.3k |
| DARK FOREST CAPITAL MANAGEMENT LP 0.16% of their portfolio | 43.1k $2.5m | Added +12.9k |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC 0.00% of their portfolio | 39.7k $2.3m | Reduced -3.8k |
| ROYCE & ASSOCIATES LP 0.02% of their portfolio | 39.4k $2.3m | Reduced -3.5k |
| IFG Advisory, LLC 0.08% of their portfolio | 38.0k $2.2m | New |
| JACOBS LEVY EQUITY MANAGEMENT, INC 0.01% of their portfolio | 36.9k $2.2m | Reduced -7.3k |
| COMMONWEALTH EQUITY SERVICES, LLC 0.00% of their portfolio | 36.4k $2.1m | Added +60 |
| VOYA INVESTMENT MANAGEMENT LLC 0.00% of their portfolio | 36.3k $2.1m | Added +863 |
| Destination Wealth Management 0.05% of their portfolio | 36.2k $2.1m | New |
| XTX Topco Ltd 0.03% of their portfolio | 34.4k $2.0m | Added +14.8k |
| JPMORGAN CHASE & CO 0.00% of their portfolio | 31.6k $1.9m | Reduced -3.7k |
| ALLIANCEBERNSTEIN L.P. 0.00% of their portfolio | 29.6k $1.5m | Added +61 |
| Mariner, LLC 0.00% of their portfolio | 27.4k $1.6m | Added +7.2k |
| Connor, Clark & Lunn Investment Management Ltd. 0.00% of their portfolio | 27.1k $1.6m | Added +4.2k |
| WELLS FARGO & COMPANY/MN 0.00% of their portfolio | 26.9k $1.6m | Added +13.0k |
| CITIGROUP INC 0.00% of their portfolio | 26.8k $1.6m | Added +7.7k |
| LPL Financial LLC 0.00% of their portfolio | 26.8k $1.6m | Reduced -432 |
| Cerity Partners LLC 0.00% of their portfolio | 26.7k $1.6m | Added +562 |
| CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM 0.00% of their portfolio | 26.1k $1.5m | Added +7.0k |
| DEUTSCHE BANK AG\ 0.00% of their portfolio | 25.2k $1.5m | Added +204 |
| PRUDENTIAL FINANCIAL INC 0.00% of their portfolio | 24.5k $1.4m | Reduced -1.1k |
| Creative Planning 0.00% of their portfolio | 24.4k $1.4m | Added +18.7k |
| BNP PARIBAS FINANCIAL MARKETS 0.00% of their portfolio | 21.1k $1.2m | Reduced -19.0k |
| SEI INVESTMENTS CO 0.00% of their portfolio | 19.6k $1.2m | Added +2.9k |
| CANADA LIFE ASSURANCE Co 0.00% of their portfolio | 19.5k $1.1m | Reduced -2.3k |
| BARCLAYS PLC 0.00% of their portfolio | 19.4k $1.1m | Added +7.0k |
| MERCER GLOBAL ADVISORS INC /ADV 0.00% of their portfolio | 18.5k $1.1m | Added +7.4k |
| WEALTH ENHANCEMENT ADVISORY SERVICES, LLC 0.00% of their portfolio | 18.1k $1.1m | Added +4.6k |
| VANGUARD ASSET MANAGEMENT, Ltd 0.00% of their portfolio | 17.9k $1.1m | Added +3.2k |
| SG Americas Securities, LLC 0.00% of their portfolio | 17.9k $1.0m | Reduced -27.3k |
| State of Tennessee, Department of Treasury 0.00% of their portfolio | 17.6k $1.0m | Reduced -14.4k |
| Russell Investments Group, Ltd. 0.00% of their portfolio | 17.0k $998.6k | Added +15.2k |
| Cypress Wealth Services, LLC 0.12% of their portfolio | 16.6k $974.7k | Reduced -5.2k |
| Assenagon Asset Management S.A. 0.00% of their portfolio | 16.3k $954.7k | Reduced -18.9k |
| Rafferty Asset Management, LLC 0.00% of their portfolio | 16.1k $944.6k | Added +945 |
| Quantinno Capital Management LP 0.00% of their portfolio | 15.5k $911.0k | Added +6.3k |
| Thrivent Financial for Lutherans 0.00% of their portfolio | 15.4k $905.0k | Reduced -1.0k |
| ROYAL BANK OF CANADA 0.00% of their portfolio | 15.0k $881.0k | Reduced -8 |
| Horizon Investments, LLC 0.01% of their portfolio | 14.4k $839.9k | Added +383 |
| SummerHaven Investment Management, LLC 0.45% of their portfolio | 14.4k $843.0k | Unchanged |
| MetLife Investment Management, LLC 0.00% of their portfolio | 14.0k $819.2k | Added +1.2k |
| KLP KAPITALFORVALTNING AS 0.00% of their portfolio | 13.7k $803.8k | Unchanged |
| OSAIC HOLDINGS, INC. 0.00% of their portfolio | 13.7k $801.3k | Added +13.4k |
| STIFEL FINANCIAL CORP 0.00% of their portfolio | 13.2k $776.5k | Added +110 |
| Illinois Municipal Retirement Fund 0.01% of their portfolio | 12.8k $752.9k | Reduced -141 |
| Polymer Capital Management (US) LLC 0.11% of their portfolio | 12.7k $745.0k | New |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP 0.00% of their portfolio | 12.3k $722.6k | Reduced -7.9k |
| Odyssean, LLC 0.12% of their portfolio | 12.2k $713.8k | Unchanged |
| Campbell & CO Investment Adviser LLC 0.04% of their portfolio | 11.7k $689.3k | New |
| Jupiter Topco LLC 0.00% of their portfolio | 11.7k $689.3k | First filing |
| Hennion & Walsh Asset Management, Inc. 0.02% of their portfolio | 11.7k $686.0k | Reduced -413 |
| Inspire Investing, LLC 0.03% of their portfolio | 11.6k $679.2k | Added +1.7k |
| Atom Investors LP 0.06% of their portfolio | 11.1k $654.0k | New |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. 0.00% of their portfolio | 11.0k $644.2k | Reduced -166 |
| TEACHER RETIREMENT SYSTEM OF TEXAS 0.00% of their portfolio | 10.4k $611.3k | Added +6.1k |
| Perigon Wealth Management, LLC 0.01% of their portfolio | 10.3k $605.7k | Reduced -176 |
| Louisiana State Employees Retirement System 0.01% of their portfolio | 10.3k $604.3k | Reduced -600 |