---
schema_version: "secwatch.filing_event.v1"
accession: "0000943374-25-000192"
form_type: "8-K"
ticker: "WSBK"
cik: "0002047235"
company_name: "Winchester Bancorp, Inc./MD/"
filed_at: "2025-05-06T23:59:59+00:00"
generated_at: "2026-05-22T14:51:20.827083+00:00"
event_type: "other_material"
sentiment: "positive"
materiality_score: 0.6
calibrated_materiality_score: 0.6
confidence: "high"
source: SEC EDGAR
---

# Winchester Bancorp closes IPO, stock to trade on Nasdaq under WSBK on May 2

## Summary
- Sold 3,997,012 shares (including 334,633 to ESOP) in the offering.
- Total shares outstanding post-IPO: 9,295,376.
- Common stock to begin trading on Nasdaq Capital Market under symbol 'WSBK' on May 2, 2025.
- Raymond James & Associates acted as marketing agent.

## SEC filing metadata
- accession: 0000943374-25-000192
- form_type: 8-K
- ticker: WSBK
- cik: 0002047235
- company_name: Winchester Bancorp, Inc./MD/
- filed_at: 2025-05-06T23:59:59+00:00
- event_type: other_material
- sentiment: positive
- materiality_score: 0.6
- calibrated_materiality_score: 0.6
- confidence: high
- sec_items: 8.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/2047235/000094337425000192/0000943374-25-000192-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/2047235/000094337425000192/form8k_043025.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0000943374-25-000192
- JSON: https://secwatch.observer/filing/0000943374-25-000192.json
- Plain text: https://secwatch.observer/filing/0000943374-25-000192.txt

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