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WABC · Westamerica Bancorporation

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$58.55 +0.08 (+0.14%)
Market Cap
$1.35B
Shares
23.11M

Institutional ownership from SEC Form 13F filings. Investment managers with more than $100 million in U.S. equities must disclose their positions every quarter, within 45 days of quarter-end, so the holdings shown can lag the market by up to a quarter.

Holders: 212
Total Value: $1,082,044,861
Total Shares: 18,442,901

Institutional Ownership Trend

26 quarters

Holder Concentration

Across 212 13F filers · Δ vs Mar 31, 2026
Top Holder
18.1%
Sep 2023 → Jun 2026 · range 17.7% – 19.2%
−0.5 pts
Top 5
51.2%
Sep 2023 → Jun 2026 · range 50.7% – 55.4%
+0.5 pts
Top 10
66.5%
Sep 2023 → Jun 2026 · range 64.5% – 68.4%
+1.3 pts
HHI
698
Sep 2023 → Jun 2026 · range 695 – 848
Broadly held+3

Quarterly Activity

vs Mar 31, 2026
New
36
Increased
70
Decreased
70
Sold Out
28
Unchanged
36
Holder count: +8
Institutional value: +11.8%
Shares held: -0.6%

Top Buyers

vs Mar 31, 2026
Institution Added Now Holds Open

Top Sellers

vs Mar 31, 2026
Institution Sold Now Holds Open

Top New Positions

vs Mar 31, 2026
Institution Acquired Value (USD) Open

Top Sold-Out Positions

vs Mar 31, 2026
Institution Previously Held Last Value (USD) Open
Showing 100 of 214
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Holder Value (USD) % of 13F Shares Open
Key facts CIK 311094 CUSIP 957090103 13F (30d) 180 filings 179 filers Visit website Investor relations