Winchester Bancorp, Inc./MD/ SEC filings WSBK
Winchester Bancorp, Inc./MD/ has 67 filings in SEC EDGAR's recent list, going back to Dec 12, 2024. Its latest annual report, Form ARS, was filed on Sep 28, 2026 for the period ended Jun 30, 2026. The latest quarterly report (Form 10-Q) was filed on Nov 4, 2026, covering the quarter ended Sep 30, 2026. The most recent current report (Form 8-K) was filed on Nov 5, 2026 (officer or director change, shareholder vote results). The company's fiscal year ends on December 31.
| Form | Description | Filed | Period |
|---|---|---|---|
| 4 | Insider transaction | May 27, 2026 | May 26, 2026 |
| 4 | Insider transaction | May 22, 2026 | May 21, 2026 |
| 4 | Insider transaction | May 8, 2026 | May 7, 2026 |
| 4 | Insider transaction | May 6, 2026 | May 5, 2026 |
| 4 | Insider transaction | May 5, 2026 | May 1, 2026 |
| 4 | Insider transaction | Jun 10, 2025 | Jun 10, 2025 |
| 4 | Insider transaction | May 15, 2025 | May 14, 2025 |
| 3 | Initial insider ownership | May 14, 2025 | Apr 30, 2025 |
| SCHEDULE 13D | Ownership over 5% (active) | May 14, 2025 | — |
| 4 | Insider transaction | May 9, 2025 | May 7, 2025 |
| 3 | Initial insider ownership | May 7, 2025 | Apr 30, 2025 |
| 3 | Initial insider ownership | May 7, 2025 | Apr 30, 2025 |
| 3 | Initial insider ownership | May 7, 2025 | Apr 30, 2025 |
| 4 | Insider transaction | May 6, 2025 | May 5, 2025 |
| 3 | Initial insider ownership | Apr 30, 2025 | Apr 30, 2025 |
| 3 | Initial insider ownership | Apr 30, 2025 | Apr 30, 2025 |
| 3 | Initial insider ownership | Apr 30, 2025 | Apr 30, 2025 |
| 3 | Initial insider ownership | Apr 30, 2025 | Apr 30, 2025 |
| 3 | Initial insider ownership | Apr 30, 2025 | Apr 30, 2025 |
| 3 | Initial insider ownership | Apr 30, 2025 | Apr 30, 2025 |
| 3 | Initial insider ownership | Apr 30, 2025 | Apr 30, 2025 |
| 3 | Initial insider ownership | Apr 30, 2025 | Apr 30, 2025 |
| 3 | Initial insider ownership | Apr 30, 2025 | Apr 30, 2025 |
| 3 | Initial insider ownership | Apr 30, 2025 | Apr 30, 2025 |
| 3 | Initial insider ownership | Apr 30, 2025 | Apr 30, 2025 |
| 3 | Initial insider ownership | Apr 30, 2025 | Apr 30, 2025 |
Showing 26 filings. Main filings leave out insider and ownership forms such as Form 4; choose a type above to see them. Each form opens on SEC.gov. Older filings are on SEC EDGAR.
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Company profile
- Industry
- Savings Institutions, Not Federally Chartered (SIC 6036)
- Listed as
- WSBK (Nasdaq)
- Fiscal year ends
- December 31
- Incorporated in
- MD
- Headquarters
- Winchester, MA
- SEC filer status
- , Emerging growth company
- SEC CIK
- 2047235
Other Savings Institutions, Not Federally Chartered companies
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All 40 Savings Institutions, Not Federally Chartered companies
Source: SEC EDGAR filings. This is company-reported data, not investment advice.