---
schema_version: "secwatch.filing_event.v1"
accession: "0001193125-25-058404"
form_type: "8-K"
ticker: "WSBK"
cik: "0002047235"
company_name: "Winchester Bancorp, Inc./MD/"
filed_at: "2025-03-20T23:59:59+00:00"
generated_at: "2026-05-24T11:04:04.547524+00:00"
event_type: "other_material"
sentiment: "neutral"
materiality_score: 0.4
calibrated_materiality_score: 0.4
confidence: "medium"
source: SEC EDGAR
---

# Winchester Bancorp starts community offering for mutual holding company reorganization

## Summary
- Filed prospectus supplement with SEC on March 20, 2025, announcing community offering.
- Community offering is in connection with proposed mutual holding company reorganization of Winchester Savings Bank.
- Company may terminate the offering at any time in its sole discretion.
- Company retains right to accept or reject any orders received in the offering.

## SEC filing metadata
- accession: 0001193125-25-058404
- form_type: 8-K
- ticker: WSBK
- cik: 0002047235
- company_name: Winchester Bancorp, Inc./MD/
- filed_at: 2025-03-20T23:59:59+00:00
- event_type: other_material
- sentiment: neutral
- materiality_score: 0.4
- calibrated_materiality_score: 0.4
- confidence: medium
- sec_items: 8.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/2047235/000119312525058404/0001193125-25-058404-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/2047235/000119312525058404/d902092d8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001193125-25-058404
- JSON: https://secwatch.observer/filing/0001193125-25-058404.json
- Plain text: https://secwatch.observer/filing/0001193125-25-058404.txt

This AI-assisted summary is a reading aid. Review the linked SEC EDGAR filing before relying on any specific claim.