---
schema_version: "secwatch.filing_event.v1"
accession: "0000943374-25-000172"
form_type: "8-K"
ticker: "WSBK"
cik: "0002047235"
company_name: "Winchester Bancorp, Inc./MD/"
filed_at: "2025-04-30T23:59:59+00:00"
generated_at: "2026-05-23T02:47:26.128709+00:00"
event_type: "other"
sentiment: "neutral"
materiality_score: 0.65
calibrated_materiality_score: 0.65
confidence: "high"
source: SEC EDGAR
---

# Winchester Bancorp IPO closes Apr 30; stock begins trading May 2 on Nasdaq under WSBK

## Summary
- All final regulatory approvals received; reorganization and stock offering close on April 30, 2025.
- Company expects to sell 3,997,012 shares (including 334,633 ESOP shares) within the offering range.
- Total shares outstanding post-closing: 9,295,376; trading on Nasdaq Capital Market under symbol WSBK begins May 2, 2025.
- DRS statements and interest checks mailed on or about May 2, 2025; Raymond James acted as marketing agent.

## SEC filing metadata
- accession: 0000943374-25-000172
- form_type: 8-K
- ticker: WSBK
- cik: 0002047235
- company_name: Winchester Bancorp, Inc./MD/
- filed_at: 2025-04-30T23:59:59+00:00
- event_type: other
- sentiment: neutral
- materiality_score: 0.65
- calibrated_materiality_score: 0.65
- confidence: high
- sec_items: 8.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/2047235/000094337425000172/0000943374-25-000172-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/2047235/000094337425000172/form8k_042925.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0000943374-25-000172
- JSON: https://secwatch.observer/filing/0000943374-25-000172.json
- Plain text: https://secwatch.observer/filing/0000943374-25-000172.txt

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