Westamerica Bancorporation
WABC- Exchange
- Nasdaq
- Industry
- National Commercial Banks
- SEC CIK
- 0000311094
No open-market purchases or sales by Westamerica Bancorporation insiders were filed in the last 90 days; 214 institutions reported holding it in 13F filings for Q2 2026, worth $1.08B in total; no superinvestor holds it.
13F holders, Q1 2026
Institutional positions in Westamerica Bancorporation as of Mar 31, 2026. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works
- Institutional holders
- 204
- −7 vs. Q4 2025
- Shares held
- 18.5M
- +1.95M (+11.7%) vs. Q4 2025
- Total value
- $967.0M
- +$173.1M (+21.8%) vs. Q4 2025
- New holders
- 21
- 69 more added
- Sold out
- 28
- 82 more reduced
5 institutions that held it in Q4 2025 haven't filed for Q1 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q4 2025: new holders, sold out and not filed yet
Holders and value by quarter
Institutions reporting WABC on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.
| Quarter | Holders | Value |
|---|---|---|
| Q2 2026 | 214 | $1.08B |
| Q1 2026 | 204 | $967.0M |
| Q4 2025 | 216 | $948.4M |
| Q3 2025 | 216 | $980.1M |
| Q2 2025 | 205 | $967.1M |
| Q1 2025 | 205 | $1.05B |
| Q4 2024 | 208 | $1.08B |
| Q3 2024 | 194 | $1.01B |
| Q2 2024 | 188 | $999.6M |
| Q1 2024 | 191 | $997.6M |
| Q4 2023 | 177 | $1.15B |
| Q3 2023 | 179 | $862.7M |
| Q2 2023 | 189 | $775.0M |
| Q1 2023 | 191 | $911.0M |
| Q4 2022 | 213 | $1.24B |
| Q3 2022 | 177 | $1.09B |
| Q2 2022 | 167 | $1.17B |
| Q1 2022 | 147 | $1.27B |
| Q4 2021 | 158 | $1.18B |
| Q3 2021 | 156 | $1.15B |
| Q2 2021 | 161 | $1.19B |
| Q1 2021 | 165 | $1.28B |
Institutions, Q1 2026
Shares, value and share of portfolio for each institution holding Westamerica Bancorporation; share changes are against Q4 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| O'Shaughnessy Asset Management, LLC | 10,719 | $559.0K | 0.00% | −1,053−8.9% | Reduced |
| Perigon Wealth Management, LLC | 10,500 | $547.6K | 0.01% | −256−2.4% | Reduced |
| CWM Advisors, LLC | 9,851 | $513.7K | 0.03% | +73+0.7% | Added |
| Manufacturers Life Insurance Company, The | 9,654 | $503.5K | 0.00% | −697−6.7% | Reduced |
| Quantinno Capital Management LP | 9,180 | $478.7K | 0.00% | −2,420−20.9% | Reduced |
| Neuberger Berman Group LLC | 9,096 | $474.4K | 0.00% | +9,096 | New |
| Meeder Asset Management Inc | 8,127 | $423.8K | 0.02% | 00.0% | Unchanged |
| Vanguard Investments Australia, Ltd. | 7,962 | $415.2K | 0.00% | +7,962 | New |
| Panagora Asset Management Inc | 7,926 | $413.3K | 0.00% | 00.0% | Unchanged |
| Marshall Wace, LLP | 7,900 | $412.0K | 0.00% | −3,228−29.0% | Reduced |
| Aigen Investment Management, LP | 7,844 | $409.1K | 0.11% | +7,844 | New |
| Victory Capital Management Inc | 7,753 | $404.3K | 0.00% | −79−1.0% | Reduced |
| Schonfeld Strategic Advisors LLC | 7,615 | $397.1K | 0.00% | +2,725+55.7% | Added |
| State Board of Administration of Florida Retirement System | 7,314 | $381.4K | 0.00% | 00.0% | Unchanged |
| Amalgamated Bank | 7,077 | $369.0K | 0.00% | −147−2.0% | Reduced |
| Police & Firemen's Retirement System of New Jersey | 7,072 | $368.8K | 0.00% | 00.0% | Unchanged |
| SAM Advisors, LLC | 6,794 | $354.3K | 0.11% | 00.0% | Unchanged |
| Entropy Technologies, LP | 6,758 | $352.4K | 0.02% | +6,758 | New |
| Canada Pension Plan Investment Board | 6,600 | $344.2K | 0.00% | 00.0% | Unchanged |
| Yousif Capital Management, LLC | 6,545 | $341.3K | 0.00% | −214−3.2% | Reduced |
| Intech Investment Management LLC | 6,509 | $339.4K | 0.00% | −3,890−37.4% | Reduced |
| Arizona State Retirement System | 6,507 | $339.3K | 0.00% | −255−3.8% | Reduced |
| Teachers Retirement System of the State of Kentucky | 6,442 | $336.0K | 0.00% | 00.0% | Unchanged |
| Two Sigma Securities, LLC | 6,307 | $328.9K | 0.04% | −277−4.2% | Reduced |
| Commonwealth of Pennsylvania Public School Empls Retrmt Sys | 6,089 | $317.5K | 0.00% | −84−1.4% | Reduced |
| RMB Capital Management, LLC | 6,053 | $315.7K | 0.01% | +111+1.9% | Added |
| Creative Planning | 5,697 | $297.1K | 0.00% | +608+11.9% | Added |
| Oregon Public Employees Retirement Fund | 5,624 | $293.3K | 0.00% | −100−1.7% | Reduced |
| D. E. Shaw & Co., Inc. | 5,549 | $289.4K | 0.00% | −2,993−35.0% | Reduced |
| Handelsbanken Fonder AB | 5,530 | $288.0K | 0.00% | 00.0% | Unchanged |
| Fifth Third Bancorp | 5,472 | $285.4K | 0.00% | +5,394+6,915.4% | Added |
| West Wealth Group, LLC | 5,184 | $270.4K | 0.05% | +46+0.9% | Added |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 5,088 | $265.3K | 0.00% | 00.0% | Unchanged |
| Allianz Asset Management GmbH | 5,080 | $264.9K | 0.00% | 00.0% | Unchanged |
| Captrust Financial Advisors | 4,876 | $254.3K | 0.00% | +114+2.4% | Added |
| Glenmede Trust Co NA | 4,461 | $232.6K | 0.00% | −5−0.1% | Reduced |
| Tower Research Capital LLC (TRC) | 4,421 | $230.6K | 0.01% | +1,974+80.7% | Added |
| Allworth Financial LP | 4,378 | $228.3K | 0.00% | −104−2.3% | Reduced |
| Teacher Retirement System of Texas | 4,313 | $224.9K | 0.00% | −683−13.7% | Reduced |
| US Bancorp | 4,300 | $224.2K | 0.00% | −5−0.1% | Reduced |
| Y-Intercept (Hong Kong) Ltd | 4,002 | $208.7K | 0.00% | −46,524−92.1% | Reduced |
| One Capital Management, LLC | 4,000 | $208.6K | 0.01% | +4,000 | New |
| Los Angeles Capital Management LLC | 3,786 | $197.4K | 0.00% | −176−4.4% | Reduced |
| Public Employees Retirement Association of Colorado | 3,784 | $197.0K | 0.00% | 00.0% | Unchanged |
| GAMMA Investing LLC | 2,437 | $127.1K | 0.01% | +776+46.7% | Added |
| New York State Teachers Retirement System | 2,240 | $117.0K | 0.00% | −34,384−93.9% | Reduced |
| Public Employees Retirement System of Ohio | 2,147 | $112.0K | 0.00% | +17+0.8% | Added |
| Ameritas Investment Partners, Inc. | 2,062 | $107.5K | 0.00% | 00.0% | Unchanged |
| Russell Investments Group, Ltd. | 1,852 | $96.6K | 0.00% | −189−9.3% | Reduced |
| The PNC Financial Services Group, Inc. | 1,660 | $86.6K | 0.00% | +605+57.3% | Added |
| Farther Finance Advisors, LLC | 1,477 | $76.7K | 0.00% | +16+1.1% | Added |
| Golden State Wealth Management, LLC | 1,245 | $64.9K | 0.01% | 00.0% | Unchanged |
| EverSource Wealth Advisors, LLC | 1,213 | $63.3K | 0.00% | +42+3.6% | Added |
| Northwestern Mutual Wealth Management Co | 1,000 | $52.1K | 0.00% | −21−2.1% | Reduced |
| MAI Capital Management | 881 | $45.9K | 0.00% | +96+12.2% | Added |
| Sterling Capital Management LLC | 787 | $41.0K | 0.00% | −615−43.9% | Reduced |
| Hantz Financial Services, Inc. | 705 | $37.0K | 0.00% | −74−9.5% | Reduced |
| Pinnacle Wealth Planning Services, Inc. | 697 | $36.3K | 0.00% | −21−2.9% | Reduced |
| Parallel Advisors, LLC | 635 | $33.1K | 0.00% | 00.0% | Unchanged |
| Bessemer Group Inc | 636 | $33.0K | 0.00% | +190+42.6% | Added |
| Harbor Capital Advisors, Inc. | 555 | $29.0K | 0.00% | +415+296.4% | Added |
| Essential Partners LLC | 519 | $27.1K | 0.01% | −10−1.9% | Reduced |
| Whittier Trust Co | 500 | $26.2K | 0.00% | 00.0% | Unchanged |
| Nisa Investment Advisors, LLC | 442 | $23.1K | 0.00% | +88+24.9% | Added |
| IFP Advisors, Inc | 409 | $21.3K | 0.00% | −32−7.3% | Reduced |
| Jones Financial Companies LLLP | 410 | $21.0K | 0.00% | +310+310.0% | Added |
| Salomon & Ludwin, LLC | 317 | $16.4K | 0.00% | +126+66.0% | Added |
| Advisor Group Holdings, Inc. | 290 | $15.1K | 0.00% | −6−2.0% | Reduced |
| Rothschild Investment LLC | 252 | $13.1K | 0.00% | +39+18.3% | Added |
| Kimelman & Baird, LLC | 250 | $13.0K | 0.00% | −255−50.5% | Reduced |
| STRS Ohio | 200 | $10.4K | 0.00% | −1,700−89.5% | Reduced |
| Versant Capital Management, Inc | 196 | $10.2K | 0.00% | +12+6.5% | Added |
| Pacific Center for Financial Services | 190 | $9.91K | 0.00% | 00.0% | Unchanged |
| True Wealth Design, LLC | 149 | $7.77K | 0.00% | −3−2.0% | Reduced |
| Umb Bank N A | 146 | $7.61K | 0.00% | +6+4.3% | Added |
| SRS Capital Advisors, Inc. | 144 | $7.51K | 0.00% | +141+4,700.0% | Added |
| Boreal Capital Management LLC | 142 | $7.41K | 0.01% | 00.0% | Unchanged |
| Advisory Services Network, LLC | 136 | $7.09K | 0.00% | +136 | New |
| Cedar Mountain Advisors, LLC | 134 | $6.99K | 0.00% | +130+3,250.0% | Added |
| Smartleaf Asset Management LLC | 106 | $5.45K | 0.00% | −99−48.3% | Reduced |
| Massmutual Trust Co FSB | 100 | $5.21K | 0.00% | −137−57.8% | Reduced |
| GWM Advisors LLC | 100 | $5.21K | 0.00% | 00.0% | Unchanged |
| McGuire Capital Advisors Inc | 99 | $5.16K | 0.00% | 00.0% | Unchanged |
| Quarry LP | 96 | $5.01K | 0.00% | +10+11.6% | Added |
| Twin Peaks Wealth Advisors, LLC | 75 | $3.91K | 0.00% | +75 | New |
| Mitsubishi UFJ Kokusai Asset Management Co., Ltd. | 73 | $3.81K | 0.00% | 00.0% | Unchanged |
| Kilter Group LLC | 58 | $3.02K | 0.00% | +58 | New |
| Root Financial Partners, LLC | 49 | $2.56K | 0.00% | +49 | New |
| Valued Wealth Advisors LLC | 47 | $2.45K | 0.00% | +47 | New |
| Osbon Capital Management LLC | 45 | $2.35K | 0.00% | 00.0% | Unchanged |
| Parkside Financial Bank & Trust | 40 | $2.09K | 0.00% | 00.0% | Unchanged |
| Sound Income Strategies, LLC | 39 | $2.00K | 0.00% | +1+2.6% | Added |
| SJS Investment Consulting Inc. | 32 | $1.67K | 0.00% | +12+60.0% | Added |
| Basecamp Wealth Advisors LLC | 30 | $1.56K | 0.00% | +30 | New |
| Bare Financial Services, Inc | 22 | $1.15K | 0.00% | +11+100.0% | Added |
| Sunbelt Securities, Inc. | 20 | $1.04K | 0.00% | −3−13.0% | Reduced |
| Keating Financial Advisory Services, Inc. | 20 | $1.04K | 0.00% | +19+1,900.0% | Added |
| Covestor Ltd | 12 | $1.00K | 0.00% | 00.0% | Unchanged |
| Larson Financial Group LLC | 19 | $991 | 0.00% | 00.0% | Unchanged |
| Quadrant Capital Group LLC | 15 | $783 | 0.00% | −1,093−98.6% | Reduced |