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Winchester Bancorp (WSBK) Institutional Ownership

Winchester Bancorp logo
$12.66 -0.04 (-0.31%)
As of 04:00 PM Eastern
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Institutional Ownership Changes (13F Filings) for Winchester Bancorp (NASDAQ:WSBK)

Number of
Institutional Buyers
(last 12 months)
11
Total
Institutional Inflows
(last 12 months)
$2.82M
Number of
Institutional Sellers
(last 12 months)
4
Total
Institutional Outflows
(last 12 months)
$1.78M
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WSBK Institutional Buying and Selling by Quarter

Winchester Bancorp Major Shareholders & Ownership History

Export
Reporting DateMajor Shareholder NameShares HeldMarket Value% of PortfolioQuarterly Change in SharesOwnership in CompanyDetails
5/14/2026 Renaissance Technologies LLC31,000$394K0.0%+17.0%0.333%
4/28/2026 M3F Inc.24,586$312K0.1%-82.9%0.264%
2/18/2026 Millennium Management LLC16,082$168K0.0%-15.1%0.173%
2/13/2026 Integrated Wealth Concepts LLC57,000$596K0.0%+3.6%0.613%
2/12/2026 Renaissance Technologies LLC26,502$277K0.0%N/A0.285%
2/12/2026 Steward Partners Investment Advisory LLC19,127$200K0.0%+77.9%0.206%
2/9/2026 Geode Capital Management LLC26,502$277K0.0%+10.9%0.285%
2/9/2026 M3 Wealth Management LLC70,000$732K0.6%N/A0.753%
11/17/2025 Millennium Management LLC18,947$182K0.0%-18.6%0.204%
11/17/2025 Citadel Advisors LLC26,438$254K0.0%-36.9%0.284%
11/14/2025 Mangrove Partners IM LLC186,949$1.79M0.1%+10.6%2.010%
11/12/2025 M3F Inc.82,552$788K0.2%+39.2%0.888%
10/7/2025 Lynch & Associates IN13,183$126K0.0%-27.5%0.142%
8/15/2025 Bank of America Corp DE10,211$91K0.0%N/A0.110%
8/14/2025 Raymond James Financial Inc.20,000$179K0.0%N/A0.215%
8/13/2025 M3F Inc.59,323$531K0.1%N/A0.638%
8/8/2025 EagleClaw Capital Managment LLC16,000$143K0.0%N/A0.172%
8/8/2025 Geode Capital Management LLC20,992$188K0.0%N/A0.226%
7/30/2025 Benin Management CORP10,500$94K0.0%N/A0.113%


WSBK Institutional Ownership - Frequently Asked Questions

During the previous two years, 14 institutional investors and hedge funds held shares of Winchester Bancorp. The most heavily invested institutionals were Mangrove Partners IM LLC ($1.79M), M3 Wealth Management LLC ($732K), Integrated Wealth Concepts LLC ($596K), Renaissance Technologies LLC ($394K), M3F Inc. ($312K), Geode Capital Management LLC ($277K), and Citadel Advisors LLC ($254K).Learn more on Winchester Bancorp's institutional investors.

Of the 11 institutional investors that purchased Winchester Bancorp's stock in the last 24 months, the following investors and hedge funds have bought the highest volume of shares: M3F Inc. ($82.55K), M3 Wealth Management LLC ($70K), Renaissance Technologies LLC ($31K), Geode Capital Management LLC ($23.60K), Raymond James Financial Inc. ($20K), Mangrove Partners IM LLC ($17.85K), and EagleClaw Capital Managment LLC ($16K).

Institutional investors have bought a total of 292,089 shares in the last 24 months. This purchase volume represents approximately $2.82M in transactions.

The following institutional investors have sold Winchester Bancorp stock in the last 24 months: M3F Inc. ($119.40K), Citadel Advisors LLC ($15.49K), Millennium Management LLC ($7.19K), and Lynch & Associates IN ($5K).

Institutional investors have sold a total of 147,080 shares in the last 24 months. This volume of shares sold represents approximately $1.78M in transactions.


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This page (NASDAQ:WSBK) was last updated on 5/19/2026 by MarketBeat.com Staff.
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