Winchester Bancorp, Inc./MD/ (WSBK)
SEC filings, insider trading & institutional ownership from EDGAR.
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Latest filings
10-K, 10-Q, 8-K, Form 4 & 13D/G. Sourced directly from SEC EDGAR
No filings are available yet.
Top holders
13F & 13D/G • latest quarter
| Holder | Filed | Value |
|---|---|---|
| Vanguard Capital Management | Aug 13, 2026 | $2.35M |
| RENAISSANCE TECHNOLOGIES LLC | Aug 13, 2026 | $412.6K |
| GEODE CAPITAL MANAGEMENT, LLC | Nov 6, 2026 | $364.3K |
| AllianceBernstein L.P. | Aug 14, 2026 | $313.1K |
| BlackRock, Inc. | Aug 7, 2026 | $186.6K |
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Data as of Nov 8, 2026Source: SEC EDGAR.