WATERSTONE FINANCIAL INC (WSBF) Top Institutional Shareholders
WATERSTONE FINANCIAL INC (WSBF) is currently reported in institutional portfolios tracked by InsiderSet based on the latest available SEC Form 13F filings for the quarter ended March 31, 2026. The institutional investors covered on this page collectively reported approximately $164.49M in WSBF holdings during the latest filing period.
Blackrock, Inc. is currently the largest disclosed institutional shareholder of WSBF tracked by InsiderSet, reporting ownership valued at approximately $27.15M in its March 31, 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 $28.72M, representing an estimated gain of +5.77% since the filing period.
The top 10 institutional shareholders tracked on this page collectively account for approximately 71% of the total disclosed WSBF value among the investors covered in this analysis. Major shareholders include Blackrock, Inc., Dimensional Fund Advisors Lp, Renaissance Technologies LLC, and several other long-term asset managers with concentrated positions in WATERSTONE FINANCIAL INC (WSBF).
This page ranks the largest institutional WSBF 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
116
Total Reported Value
$164.49M
Largest Holder
Blackrock, Inc.
Largest Position
$27.15M
Insider Transactions (90d)
0
Latest Filing Quarter
Q1 2026
New Institutional Positions
128
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% | 1,505,989 | $27,152,987 | $28,719,210 | +$1,566,223 | +5.77% | |
| Dimensional Fund Advisors Lp | 0.01% | 1,413,502 | $25,485,979 | $26,955,483 | +$1,469,504 | +5.77% | |
| Renaissance Technologies LLC | Jim Simons | 0.03% | 1,094,471 | $19,733,312 | $20,871,562 | +$1,138,250 | +5.77% |
| Vanguard Capital Management Llc | 0.00% | 700,237 | $12,625,273 | $13,353,520 | +$728,247 | +5.77% | |
| State Street Corp | 0.00% | 394,515 | $7,113,105 | $7,523,401 | +$410,296 | +5.77% | |
| Geode Capital Management, Llc | 0.00% | 366,680 | $6,612,269 | $6,992,588 | +$380,319 | +5.75% | |
| Fourthstone Llc | 0.89% | 291,191 | $5,250,174 | $5,553,012 | +$302,838 | +5.77% | |
| Goldman Sachs Group Inc | 0.00% | 254,464 | $4,587,984 | $4,852,628 | +$264,644 | +5.77% | |
| American Century Companies Inc | 0.00% | 250,085 | $4,509,041 | $4,769,121 | +$260,080 | +5.77% | |
| Aqr Capital Management Llc | 0.00% | 224,794 | $4,053,037 | $4,286,822 | +$233,785 | +5.77% | |
| Bridgeway Capital Management, Llc | 0.07% | 205,116 | $3,698,241 | $3,911,562 | +$213,321 | +5.77% | |
| Donald Smith & Co. | Donald G. Smith | 0.06% | 176,090 | $3,174,903 | $3,358,036 | +$183,133 | +5.77% |
| Arrowstreet Capital, Limited Partnership | 0.00% | 167,095 | $3,012,723 | $3,186,502 | +$173,779 | +5.77% | |
| Morgan Stanley | 0.00% | 153,631 | $2,769,989 | $2,929,743 | +$159,754 | +5.77% | |
| Quantinno Capital Management Lp | 0.00% | 141,411 | $2,549,640 | $2,696,708 | +$147,068 | +5.77% | |
| Northern Trust Corp | 0.00% | 140,079 | $2,525,624 | $2,671,307 | +$145,683 | +5.77% | |
| Charles Schwab Investment Management Inc | 0.00% | 126,792 | $2,286,060 | $2,417,923 | +$131,863 | +5.77% | |
| Empowered Funds, Llc | 0.01% | 122,380 | $2,206,512 | $2,333,787 | +$127,275 | +5.77% | |
| Vanguard Fiduciary Trust Co | 0.00% | 93,078 | $1,678,196 | $1,774,997 | +$96,801 | +5.77% | |
| Vanguard Portfolio Management Llc | 0.00% | 87,651 | $1,580,348 | $1,671,505 | +$91,157 | +5.77% | |
| Two Sigma Investments, Lp | 0.00% | 85,925 | $1,549,228 | $1,638,590 | +$89,362 | +5.77% | |
| Fmr Llc | 0.00% | 84,214 | $1,518,377 | $1,605,961 | +$87,584 | +5.77% | |
| Bank Of New York Mellon Corp | 0.00% | 83,931 | $1,513,277 | $1,600,564 | +$87,287 | +5.77% | |
| Teton Advisors, Llc | 0.75% | 59,000 | $1,063,770 | $1,125,130 | +$61,360 | +5.77% | |
| Hsbc Holdings Plc | 0.00% | 48,012 | $873,818 | $915,589 | +$41,771 | +4.78% | |
| Bank Of America Corp | 0.00% | 45,200 | $814,956 | $861,964 | +$47,008 | +5.77% | |
| Connor, Clark & Lunn Investment Management Ltd. | 0.00% | 44,747 | $806,788 | $853,325 | +$46,537 | +5.77% | |
| Ritholtz Wealth Management | 0.01% | 43,647 | $786,956 | $832,348 | +$45,392 | +5.77% | |
| Nuveen, Llc | 0.00% | 43,630 | $786,649 | $832,024 | +$45,375 | +5.77% | |
| D. E. Shaw & Co., Inc. | 0.00% | 40,705 | $733,911 | $776,244 | +$42,333 | +5.77% | |
| Citadel Advisors Llc | 0.00% | 39,460 | $711,464 | $752,502 | +$41,038 | +5.77% | |
| Martingale Asset Management L P | 0.02% | 38,234 | $689,360 | $729,122 | +$39,762 | +5.77% | |
| O'Shaughnessy Asset Management, Llc | 0.00% | 36,840 | $664,225 | $702,539 | +$38,314 | +5.77% | |
| State Of Wisconsin Investment Board | 0.00% | 34,600 | $623,838 | $659,822 | +$35,984 | +5.77% | |
| Ieq Capital, Llc | 0.00% | 32,136 | $579,404 | $612,834 | +$33,430 | +5.77% | |
| Strs Ohio | 0.00% | 31,600 | $569,748 | $602,612 | +$32,864 | +5.77% | |
| Qube Research & Technologies Ltd | 0.00% | 27,836 | $501,883 | $530,833 | +$28,950 | +5.77% | |
| Alliancebernstein L.P. | 0.00% | 25,880 | $428,314 | $493,532 | +$65,218 | +15.23% | |
| Commonwealth Equity Services, Llc | 0.00% | 23,438 | $422,590 | $446,963 | +$24,373 | +5.77% | |
| Mariner, Llc | 0.00% | 21,367 | $385,267 | $407,469 | +$22,202 | +5.76% | |
| Russell Investments Group, Ltd. | 0.00% | 19,941 | $359,547 | $380,275 | +$20,728 | +5.76% | |
| Rhumbline Advisers | 0.00% | 19,120 | $344,745 | $364,618 | +$19,873 | +5.76% | |
| Xtx Topco Ltd | 0.01% | 17,618 | $317,653 | $335,975 | +$18,322 | +5.77% | |
| Invesco Ltd. | 0.00% | 17,273 | $311,431 | $329,396 | +$17,965 | +5.77% | |
| Mercer Global Advisors Inc | 0.00% | 17,231 | $310,675 | $328,595 | +$17,920 | +5.77% | |
| Cwm, Llc | 0.00% | 15,968 | $287,903 | $304,510 | +$16,607 | +5.77% | |
| Jane Street Group, Llc | 0.00% | 15,682 | $282,747 | $299,056 | +$16,309 | +5.77% | |
| Franklin Resources Inc | 0.00% | 15,199 | $274,038 | $289,845 | +$15,807 | +5.77% | |
| Curi Capital, Llc | 0.00% | 15,139 | $272,958 | $288,701 | +$15,743 | +5.77% | |
| Wealth Enhancement Advisory Services, Llc | 0.00% | 14,240 | $259,316 | $271,557 | +$12,241 | +4.72% |
Frequently asked questions about WSBF
Who owns the most WSBF stock?
The largest holders of WSBF 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 WATERSTONE FINANCIAL INC (WSBF).
Is WSBF widely held by superinvestors?
Many widely followed stocks like WSBF appear across numerous superinvestor portfolios because of liquidity, index inclusion, and fundamentals. The holder count and table above show how broadly WSBF 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.