WESTAMERICA BANCORPORATION (WABC) Institutional Shareholders
WESTAMERICA BANCORPORATION (WABC) is currently reported in institutional portfolios tracked by InsiderSet based on the latest available SEC Form 13F filings for the quarter ended June 30, 2026. The institutional investors covered on this page collectively reported approximately $1.08B in WABC holdings during the latest filing period.
Blackrock, Inc. is currently the largest disclosed institutional shareholder of WABC tracked by InsiderSet, reporting ownership valued at approximately $195.71M in its June 30, 2026 SEC Form 13F filing. Based on current market prices and the latest disclosed share count, the position is now estimated to be worth approximately $202.48M, representing an estimated gain of +3.46% since the filing period.
The top 10 institutional shareholders tracked on this page collectively account for approximately 67% of the total disclosed WABC value among the investors covered in this analysis. Major shareholders include Blackrock, Inc., American Century Companies Inc, Vanguard Portfolio Management Llc, and several other long-term asset managers with concentrated positions in WESTAMERICA BANCORPORATION (WABC).
This page ranks the largest institutional WABC shareholders using publicly disclosed SEC Form 13F data, including reported values, estimated current holding values, portfolio allocation percentages, ownership concentration metrics, and historical holding changes across major hedge funds and investment firms.
Institutional Holders
206
Total Reported Value
$1.08B
Largest Holder
Blackrock, Inc.
Largest Position
$195.71M
Insider Transactions (90d)
0
Latest Filing Quarter
Q2 2026
New Institutional Positions
45
Funds Exiting Positions
0
| Name | Investor/Manager | Portfolio % | Quantity | Reported Balance | Current Estimated Value | Gain/loss Since Filing | Estimated Portfolio Performance |
|---|---|---|---|---|---|---|---|
| Blackrock, Inc. | 0.00% | 3,335,703 | $195,705,696 | $202,477,172 | +$6,771,476 | +3.46% | |
| American Century Companies Inc | 0.05% | 1,958,072 | $114,880,198 | $118,854,970 | +$3,974,772 | +3.46% | |
| Vanguard Portfolio Management Llc | 0.00% | 1,720,645 | $100,950,242 | $104,443,152 | +$3,492,910 | +3.46% | |
| State Street Corp | 0.00% | 1,394,074 | $81,790,322 | $84,620,292 | +$2,829,970 | +3.46% | |
| Vanguard Capital Management Llc | 0.00% | 1,034,531 | $60,695,934 | $62,796,032 | +$2,100,098 | +3.46% | |
| Dimensional Fund Advisors Lp | 0.01% | 983,639 | $57,709,962 | $59,706,887 | +$1,996,925 | +3.46% | |
| Geode Capital Management, Llc | 0.00% | 627,073 | $36,797,697 | $38,063,331 | +$1,265,634 | +3.44% | |
| Aqr Capital Management Llc | 0.01% | 495,223 | $29,054,748 | $30,060,036 | +$1,005,288 | +3.46% | |
| Nuveen, Llc | 0.01% | 382,288 | $22,428,837 | $23,204,882 | +$776,045 | +3.46% | |
| Rhino Investment Partners, Inc | 5.77% | 324,824 | $19,057,424 | $19,716,817 | +$659,393 | +3.46% | |
| Arrowstreet Capital, Limited Partnership | 0.01% | 324,191 | $19,020,286 | $19,678,394 | +$658,108 | +3.46% | |
| Two Sigma Investments, Lp | 0.01% | 303,836 | $17,826,058 | $18,442,845 | +$616,787 | +3.46% | |
| Northern Trust Corp | 0.00% | 303,422 | $17,801,768 | $18,417,715 | +$615,947 | +3.46% | |
| Charles Schwab Investment Management Inc | 0.00% | 294,930 | $17,303,543 | $17,902,251 | +$598,708 | +3.46% | |
| Rbo & Co Llc | 2.57% | 275,551 | $16,166,585 | $16,725,946 | +$559,361 | +3.46% | |
| Mackenzie Financial Corp | 0.01% | 242,861 | $14,248,655 | $14,741,663 | +$493,008 | +3.46% | |
| Morgan Stanley | 0.00% | 229,998 | $13,494,057 | $13,960,879 | +$466,822 | +3.46% | |
| Goldman Sachs Group Inc | 0.00% | 228,465 | $13,404,042 | $13,867,826 | +$463,784 | +3.46% | |
| Bank Of New York Mellon Corp | 0.00% | 211,466 | $12,406,698 | $12,835,986 | +$429,288 | +3.46% | |
| T. Rowe Price Investment Management, Inc. | 0.01% | 193,995 | $11,382,000 | $11,775,497 | +$393,497 | +3.46% | |
| Vanguard Fiduciary Trust Co | 0.00% | 154,702 | $9,076,366 | $9,390,411 | +$314,045 | +3.46% | |
| Principal Financial Group Inc | 0.00% | 147,747 | $8,668,317 | $8,968,243 | +$299,926 | +3.46% | |
| Leeward Investments, Llc - Ma | 0.36% | 135,284 | $7,937,112 | $8,211,739 | +$274,627 | +3.46% | |
| Ubs Group Ag | 0.00% | 132,554 | $7,776,943 | $8,046,028 | +$269,085 | +3.46% | |
| Invesco Ltd. | 0.00% | 122,748 | $7,201,625 | $7,450,804 | +$249,179 | +3.46% | |
| First Trust Advisors Lp | 0.00% | 115,550 | $6,779,318 | $7,013,885 | +$234,567 | +3.46% | |
| New York State Common Retirement Fund | 0.01% | 112,989 | $6,629,065 | $6,858,432 | +$229,367 | +3.46% | |
| Qube Research & Technologies Ltd | 0.01% | 109,298 | $6,412,514 | $6,634,389 | +$221,875 | +3.46% | |
| Citadel Advisors Llc | 0.00% | 108,509 | $6,366,223 | $6,586,496 | +$220,273 | +3.46% | |
| Man Group Plc | 0.01% | 87,692 | $5,144,890 | $5,322,904 | +$178,014 | +3.46% | |
| Raymond James Financial Inc | 0.00% | 81,407 | $4,776,125 | $4,941,405 | +$165,280 | +3.46% | |
| Public Sector Pension Investment Board | 0.01% | 80,744 | $4,737,250 | $4,901,161 | +$163,911 | +3.46% | |
| Bank Of America Corp | 0.00% | 74,309 | $4,359,710 | $4,510,556 | +$150,846 | +3.46% | |
| Renaissance Technologies LLC | Jim Simons | 0.01% | 72,499 | $4,253,516 | $4,400,689 | +$147,173 | +3.46% |
| Winton Group Ltd | 0.13% | 69,033 | $4,050,166 | $4,190,303 | +$140,137 | +3.46% | |
| Rhumbline Advisers | 0.00% | 63,479 | $3,724,299 | $3,853,175 | +$128,876 | +3.46% | |
| Ieq Capital, Llc | 0.02% | 60,977 | $3,577,544 | $3,701,304 | +$123,760 | +3.46% | |
| Legal & General Group Plc | 0.00% | 53,910 | $3,162,899 | $3,272,337 | +$109,438 | +3.46% | |
| Maltese Capital Management Llc | 0.51% | 47,500 | $2,786,824 | $2,883,250 | +$96,426 | +3.46% | |
| Ameriprise Financial Inc | 0.00% | 46,787 | $2,744,992 | $2,839,971 | +$94,979 | +3.46% | |
| Acadian Asset Management Llc | 0.00% | 45,303 | $2,654,000 | $2,749,892 | +$95,892 | +3.61% | |
| Swiss National Bank | 0.00% | 45,000 | $2,640,150 | $2,731,500 | +$91,350 | +3.46% | |
| Price T Rowe Associates Inc | 0.00% | 43,446 | $2,549,000 | $2,637,172 | +$88,172 | +3.46% | |
| Dark Forest Capital Management Lp | 0.16% | 43,130 | $2,530,437 | $2,617,991 | +$87,554 | +3.46% | |
| Royce & Associates Lp | 0.02% | 39,411 | $2,312,243 | $2,392,248 | +$80,005 | +3.46% | |
| Ubs Am, A Distinct Business Unit Of Ubs Asset Management Americas Llc | 0.00% | 43,500 | $2,268,526 | $2,640,450 | +$371,924 | +16.39% | |
| Ifg Advisory, Llc | 0.08% | 37,972 | $2,227,789 | $2,304,900 | +$77,111 | +3.46% | |
| Jacobs Levy Equity Management, Inc | 0.01% | 36,941 | $2,167,328 | $2,242,319 | +$74,991 | +3.46% | |
| Commonwealth Equity Services, Llc | 0.00% | 36,417 | $2,136,580 | $2,210,512 | +$73,932 | +3.46% | |
| Voya Investment Management Llc | 0.00% | 36,292 | $2,129,252 | $2,202,924 | +$73,672 | +3.46% |
Frequently asked questions about WABC
Who owns the most WABC stock?
The largest holders of WABC are typically major institutional investors such as asset managers and hedge funds reporting on Form 13F. The table above ranks tracked superinvestors by reported position size using the latest available filings for WESTAMERICA BANCORPORATION (WABC).
Is WABC widely held by superinvestors?
Many widely followed stocks like WABC appear across numerous superinvestor portfolios because of liquidity, index inclusion, and fundamentals. The holder count and table above show how broadly WABC is represented among the institutional managers we track.
What do “Current Estimated Value”, “Gain/loss Since Filing”, and “Estimated Portfolio Performance” mean?
Current Estimated Value is reported share quantity from the latest 13F times our most recent split-adjusted U.S. session close. Gain/loss Since Filing is that estimate minus the reported 13F dollar value; Estimated Portfolio Performance is that difference as a percent of the reported value. Green means the estimate is above the filing value; red means below (not purchase cost). If many filers share the same implied filing price per share, the performance % may match across rows. These are not official fund marks or live quotes.