---
schema_version: "secwatch.filing_event.v1"
accession: "0001193125-26-408295"
form_type: "8-K"
ticker: "WSBK"
cik: "0002047235"
company_name: "Winchester Bancorp, Inc./MD/"
filed_at: "2026-09-30T11:20:52+00:00"
generated_at: "2026-10-12T13:57:20.500061+00:00"
event_type: "other_material"
sentiment: "positive"
materiality_score: 0.4
calibrated_materiality_score: 0.4
confidence: "high"
source: SEC EDGAR
---

# Winchester Bancorp board approves buyback of up to 464,769 shares, about 5% of shares outstanding

## Summary
- Board of Directors adopted a Share Repurchase Program authorizing repurchases of up to 464,769 shares of common stock, $0.01 par value, roughly 5% of current shares outstanding.
- Program commences September 30, 2026 and expires September 1, 2027; it may be modified, suspended or discontinued at any time.
- Timing and number of shares repurchased will depend on price, corporate and regulatory requirements, market conditions, and other liquidity requirements and priorities.
- Filing signed by John A. Carroll, President and Chief Executive Officer, dated September 30, 2026.

## SEC filing metadata
- accession: 0001193125-26-408295
- form_type: 8-K
- ticker: WSBK
- cik: 0002047235
- company_name: Winchester Bancorp, Inc./MD/
- filed_at: 2026-09-30T11:20:52+00:00
- event_type: other_material
- sentiment: positive
- materiality_score: 0.4
- calibrated_materiality_score: 0.4
- confidence: high
- sec_items: 8.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/2047235/000119312526408295/0001193125-26-408295-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/2047235/000119312526408295/wsbk-20260930.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001193125-26-408295
- JSON: https://secwatch.observer/filing/0001193125-26-408295.json
- Plain text: https://secwatch.observer/filing/0001193125-26-408295.txt

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