Westamerica Bancorporation WABC Institutional Ownership

NASDAQ WABC

$59.11 +0.84 (+1.44%)

As of: Sep 10, 2026 · 3:59 PM EDT

Institutions by Trading Activity

214 Institutions

Increased 107 50.0%

Unchanged 37 17.3%

Reduced 70 32.7%

Ownership Statistics

13F · as of 30 Jun, 2026

Institutional Ownership

80.41%

▲+4.06 pp QoQ

Shares Held by Institutions

18.74Mn

of 23.31Mn outstanding

▲+5.73% QoQ

Shares Outstanding

23.31Mn

4.57Mn held outside 13F filers

Institutional Investors

214

filed 13F for Jun 2026

▲+11 vs prior quarter

Net Shares Added (QoQ)

+1.02Mn

accumulated since last quarter

Value of Holdings

$1.11Bn

reported market value

Shares Owned by Institutions

Shares held % of outstanding

Latest —

Average ownership —

Peak ownership —

Shares Purchased/Sold by Institutions

Accumulated Distributed

Latest quarter —

Net over range —

Accumulating quarters —

Ownership Summary

Quarter ending 30 Jun, 2026

Westamerica Bancorporation (NASDAQ:WABC) appears in 214 institutional 13F filings for the quarter ending June 2026.

These investors held 80.4% of outstanding shares in June 2026, up from 76.3% in March 2026.
They increased total shares held in WABC by 5.73% quarter over quarter, and investors in Westamerica Bancorporation increased 4.9% from a year ago.
During the quarter, 107 of these 214 funds increased positions in WABC, 70 reduced exposure, and 37 held steady.
Institutional investors collectively held 18.74Mn shares in Westamerica Bancorporation as of June 2026, up by 1.02Mn shares quarter on quarter, and down 1.07Mn shares year over year.
As of June 30, 2026, BlackRock, Inc. held the largest stake in Westamerica Bancorporation with 3.34Mn shares, accounting for 14.31% of total shares outstanding.
Leading buyers of Westamerica Bancorporation shares for the quarter ending June 2026 were Rhino Investment Partners, Inc (324.82K), Sixth Street Partners Management Company, L.P. (294.93K), MACKENZIE FINANCIAL CORP (242.86K), State Street Corp (190.79K), AQR CAPITAL MANAGEMENT LLC (96.18K).
The largest sales of WABC for the quarter ending June 2026 came from BlackRock, Inc. (113.63K), RENAISSANCE TECHNOLOGIES LLC (79.93K), Qube Research & Technologies Ltd (62.08K), VANGUARD CAPITAL MANAGEMENT LLC (60.55K), TWO SIGMA INVESTMENTS, LP (49.2K).
Westamerica Bancorporation's 10 largest shareholders as of June 2026 include BlackRock, Inc. (3.34Mn), AMERICAN CENTURY COMPANIES INC (1.96Mn), VANGUARD PORTFOLIO MANAGEMENT LLC (1.72Mn), State Street Corp (1.39Mn), VANGUARD CAPITAL MANAGEMENT LLC (1.03Mn), DIMENSIONAL FUND ADVISORS LP (983.64K), GEODE CAPITAL MANAGEMENT, LLC (627.07K), AQR CAPITAL MANAGEMENT LLC (495.22K), Nuveen, LLC (382.29K), Rhino Investment Partners, Inc (324.82K) per Business Quant data.

Form 13F Holdings

214 Institutional Holders

Report period 30 Jun, 2026

Total shares held 18.74Mn

Of outstanding 80.41%

#	Institution	CIK	Shares Held	% of Outstanding	Change (QoQ)	Change (%)	Value (USD)
1	BlackRock, Inc.	0002012383	3,335,703	14.31%	▼113,632	-3.29%	$195.71Mn
2	AMERICAN CENTURY COMPANIES INC	0000748054	1,958,072	8.40%	▲51,202	+2.69%	$114.88Mn
3	VANGUARD PORTFOLIO MANAGEMENT LLC	0002100121	1,720,645	7.38%	▼38,905	-2.21%	$100.95Mn
4	State Street Corp	0000093751	1,394,074	5.98%	▲190,791	+15.86%	$81.79Mn
5	VANGUARD CAPITAL MANAGEMENT LLC	0002100119	1,034,531	4.44%	▼60,547	-5.53%	$60.70Mn
6	DIMENSIONAL FUND ADVISORS LP	0000354204	983,639	4.22%	▲38,940	+4.12%	$57.71Mn
7	GEODE CAPITAL MANAGEMENT, LLC	0001214717	627,073	2.69%	▲13,911	+2.27%	$36.80Mn
8	AQR CAPITAL MANAGEMENT LLC	0001167557	495,223	2.12%	▲96,177	+24.10%	$29.05Mn
9	Nuveen, LLC	0001871926	382,288	1.64%	▲22,943	+6.38%	$22.43Mn
10	Rhino Investment Partners, Inc	0001828776	324,824	1.39%	▲324,824	0.00%	$19.06Mn
11	ARROWSTREET CAPITAL, LIMITED PARTNERSHIP	0001164508	324,191	1.39%	▲40,382	+14.23%	$19.02Mn
12	TWO SIGMA INVESTMENTS, LP	0001179392	303,836	1.30%	▼49,196	-13.94%	$17.83Mn
13	Northern Trust Corp	0000073124	303,422	1.30%	▲14,445	+5.00%	$17.80Mn
14	Sixth Street Partners Management Company, L.P.	0001812095	294,930	1.27%	▲294,930	0.00%	$17.30Mn
14	CHARLES SCHWAB INVESTMENT MANAGEMENT INC	0000884546	294,930	1.27%	▼2,995	-1.01%	$17.30Mn
15	RBO & CO LLC	0001162827	275,551	1.18%	▼6,647	-2.36%	$16.17Mn
16	MACKENZIE FINANCIAL CORP	0000919859	242,861	1.04%	▲242,861	0.00%	$14.25Mn
17	Morgan Stanley	0000895421	229,998	0.99%	▼25,158	-9.86%	$13.49Mn
18	Goldman Sachs Group Inc	0000886982	228,465	0.98%	▲1,745	+0.77%	$13.40Mn
19	Bank of New York Mellon Corp	0001390777	211,466	0.91%	▲1,953	+0.93%	$12.41Mn

Showing 1 to 20 of 214 holders