Institutional Ownership
Westamerica Bancorporation
CUSIP 957090103COMWABCQ1 2026
13D / 13G Filings
26
Schedule 13D/13G on record
Beneficial Filers
6
Distinct reporting persons
Largest Stake
14.6%
Max % of class reported
Institutional Holders
195
13F filers (latest quarter)
Beneficial Owners — Schedule 13D / 13G
26 filings · latest May 13, 2025
| # | Filed | Reporting Person | Form | % of Class | Shares | Filing |
|---|---|---|---|---|---|---|
| 1 | May 13, 2025 | State Street Corporation | 13G | 4.6% | 1.23M | SEC |
| 2 | Feb 5, 2025 | State Street Corporation | 13G | 5.1% | 1.36M | SEC |
| 3 | Nov 8, 2024 | American Century Investment Management Inc | 13G/A | 7.3% | 1.95M | SEC |
| 4 | Feb 13, 2024 | Vanguard Group Inc | 13G/A | 13.1% | 3.49M | SEC |
| 5 | Feb 12, 2024 | American Century Investment Management Inc | 13G | 5.5% | 1.46M | SEC |
| 6 | Jan 23, 2024 | Blackrock Inc. | 13G/A | 14.6% | 3.90M | SEC |
| 7 | Feb 14, 2023 | Price T Rowe Associates Inc /Md/ | 13G/A | 2.9% | 785.3K | SEC |
| 8 | Feb 9, 2023 | Vanguard Group Inc | 13G/A | 12.6% | 3.40M | SEC |
| 9 | Feb 8, 2023 | American Century Investment Management Inc | 13G/A | 3.8% | 1.02M | SEC |
| 10 | Jan 24, 2023 | Blackrock Inc. | 13G | 14.1% | 3.80M | SEC |
16 more beneficial-ownership filings on Premium
See the full Schedule 13D/13G history for Westamerica Bancorporation.
Unlock full historyTop Institutional Holders (13F)
Largest reported positions · latest quarter
| # | Fund | Shares | Value |
|---|---|---|---|
| 1 | Blackrock, Inc. | 3.45M | $179.88M |
| 2 | American Century Companies Inc | 1.91M | $99.44M |
| 3 | State Street Corp | 1.20M | $62.75M |
| 4 | Dimensional Fund Advisors LP | 944.7K | $49.26M |
| 5 | Geode Capital Management, LLC | 613.2K | $31.98M |
| 6 | Aqr Capital Management LLC | 399.0K | $20.81M |
| 7 | Nuveen, LLC | 359.3K | $18.74M |
| 8 | Two Sigma Investments, LP | 353.0K | $18.41M |
| 9 | Palisade Capital Management, LP | 305.0K | $15.90M |
| 10 | Charles Schwab Investment Management Inc | 297.9K | $15.54M |