WABC · NASDAQ · Banks - Regional

Westamerica Bancorp

Serves small businesses and households across Northern and Central California banking markets.

$58.07
After-hours close−0.05 (−0.08%)
At close$58.12(−0.20%)

Breakdown13F · Form 4

Institutions 86.22%20.25M sharesInsiders 0.12%28.0K sharesOther 13.66%3.21M shares

Shares outstanding 23.49M · Float 22.26M · 94.8% free float

Top shareholders13F · 13D/G · Form 4

HolderShares% outstandingFormFiled
BlackRock, Inc.3.34M14.20%13FAug 7, 2026
American Century Companies Inc1.96M8.34%13FAug 12, 2026
Vanguard Portfolio Management LLC1.72M7.33%13FAug 13, 2026
State Street Corporation1.39M5.90%13GAug 7, 2026
Vanguard Capital Management LLC1.03M4.40%13FAug 13, 2026

Institutions13F, as of Jun 30, 2026

217 holders · 20.25M shares · 38 new positions · 109 increased · 70 reduced · 27 closed

HolderShares% outstandingChg q/qFiled
BlackRock, Inc.3.34M14.20%−113.6KAug 7, 2026
American Century Companies Inc1.96M8.34%+51.2KAug 12, 2026
Vanguard Portfolio Management LLC1.72M7.33%−38.9KAug 13, 2026
State Street Corp1.39M5.94%+190.8KAug 7, 2026
Vanguard Capital Management LLC1.03M4.40%−60.5KAug 13, 2026
Dimensional Fund Advisors LP983.6K4.19%+38.9KAug 11, 2026
Geode Capital Management, LLC627.1K2.67%+13.9KAug 12, 2026
AQR Capital Management LLC495.2K2.11%+96.2KAug 14, 2026

Beneficial owners13D/G · 5% or more, as filed

Holder% of classSharesFormFiled
Vanguard Portfolio Management7.33%1.77M13GApr 29, 2026
State Street Corporation5.90%1.39M13GAug 7, 2026
Vanguard Capital Management5.28%1.28M13GApr 30, 2026

InsidersForm 4

InsiderRoleShares% outstandingFiled
John A. Thorsonofficer: SVP/Treasurer14.2K0.06%Apr 29, 2025
George S. Ensingerofficer: SVP/Human Resources Div. Mgr6.6K0.03%Mar 2, 2026
Brian J. Donohoeofficer: SVP/Chief Information Officer5.9K0.03%Mar 3, 2026
Inez Wondehdirector1.0K0.00%Apr 23, 2026
Anela Marya Jonasofficer: SVP/CFO2360.00%Feb 25, 2026
Martin Camseydirector630.00%Apr 24, 2025

1 ten-percent owner holds 177.1K shares by Form 4, outside the officers-and-directors figure above · 14 people have not refiled in the last 18 months (321.0K shares), so they are not in the figure above

Latest trades

DateInsiderTypeSharesAvg priceOwned after
Apr 22, 2026
Inez Wondehdirector
Purchase61$53.791,007
Apr 20, 2026
Robert James Jr Bakerofficer: SVP/Banking Division Manager
Sale759$53.830

CongressHouse and Senate disclosures

Not reported.