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, Q3 2025
Institutional positions in Westamerica Bancorporation as of Sep 30, 2025. 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
- 216
- +13 vs. Q2 2025
- Shares held
- 19.6M
- −329.5K (−1.7%) vs. Q2 2025
- Total value
- $980.1M
- +$14.4M (+1.5%) vs. Q2 2025
- New holders
- 28
- 74 more added
- Sold out
- 15
- 80 more reduced
2 institutions that held it in Q2 2025 haven't filed for Q3 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q2 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, Q3 2025
Shares, value and share of portfolio for each institution holding Westamerica Bancorporation; share changes are against Q2 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| T. Rowe Price Investment Management, Inc. | 246,529 | $12.3M | 0.01% | −3,277−1.3% | Reduced |
| AQR Capital Management LLC | 280,965 | $14.0M | 0.01% | +172,550+159.2% | Added |
| Charles Schwab Investment Management Inc | 284,350 | $14.2M | 0.00% | +11,175+4.1% | Added |
| Morgan Stanley | 295,161 | $14.8M | 0.00% | −21,030−6.7% | Reduced |
| Rbo & Co LLC | 297,088 | $14.9M | 2.32% | 00.0% | Unchanged |
| Arrowstreet Capital, Limited Partnership | 302,136 | $15.1M | 0.01% | −7,817−2.5% | Reduced |
| Northern Trust Corp | 309,461 | $15.5M | 0.00% | −12,177−3.8% | Reduced |
| Nuveen, LLC | 357,650 | $17.9M | 0.00% | −24,959−6.5% | Reduced |
| Palisade Capital Management LLC | 369,176 | $18.5M | 0.50% | −12,338−3.2% | Reduced |
| Millennium Management LLC | 399,197 | $20.0M | 0.02% | +200,884+101.3% | Added |
| Geode Capital Management, LLC | 624,603 | $31.2M | 0.00% | −165,044−20.9% | Reduced |
| Dimensional Fund Advisors LP | 894,194 | $44.7M | 0.01% | +6,473+0.7% | Added |
| State Street Corp | 1,227,602 | $61.4M | 0.00% | −50,395−3.9% | Reduced |
| American Century Companies Inc | 1,774,913 | $88.7M | 0.05% | −244,416−12.1% | Reduced |
| Vanguard Group Inc | 3,184,414 | $159.2M | 0.00% | −13,016−0.4% | Reduced |
| BlackRock, Inc. | 3,528,887 | $176.4M | 0.00% | −129,508−3.5% | Reduced |
| Marshall Wace, LLP | 0 | $0 | 0.00% | −19,455−100.0% | Sold out |
| Trexquant Investment LP | 0 | $0 | 0.00% | −12,799−100.0% | Sold out |
| Allspring Global Investments Holdings, LLC | 0 | $0 | 0.00% | −10,448−100.0% | Sold out |
| Financial Advocates Investment Management | 0 | $0 | 0.00% | −8,893−100.0% | Sold out |
| Verition Fund Management LLC | 0 | $0 | 0.00% | −8,520−100.0% | Sold out |
| Maryland State Retirement & Pension System | 0 | $0 | 0.00% | −7,702−100.0% | Sold out |
| Inceptionr LLC | 0 | $0 | 0.00% | −7,613−100.0% | Sold out |
| Fiduciary Trust Co | 0 | $0 | 0.00% | −6,730−100.0% | Sold out |
| Quantbot Technologies LP | 0 | $0 | 0.00% | −2,963−100.0% | Sold out |
| Northwest Capital Management Inc | 0 | $0 | 0.00% | −584−100.0% | Sold out |
| Ameritas Advisory Services, LLC | 0 | $0 | 0.00% | −503−100.0% | Sold out |
| Skopos Labs, Inc. | 0 | $0 | 0.00% | −284−100.0% | Sold out |
| Aster Capital Management (DIFC) Ltd | 0 | $0 | 0.00% | −200−100.0% | Sold out |
| BNP PARIBAS ASSET MANAGEMENT Holding S.A. | 0 | $0 | 0.00% | −99−100.0% | Sold out |
| Twin Peaks Wealth Advisors, LLC | 0 | $0 | 0.00% | −34−100.0% | Sold out |
| Norges Bank | – | – | – | – | Not filed |
| Total Wealth Planning & Management, Inc. | – | – | – | – | Not filed |