# EDGAR Filing Document

**Accession Number:** 0002047235
**File Stem:** 0001193125-25-236599
**Filing Date:** 2025-10
**Character Count:** 1139
**Document Hash:** fe5bf4cbeabf541d04d4dd9100bae8d0
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001193125-25-236599.hdr.sgml**: 20251010

**ACCESSION NUMBER**: 0001193125-25-236599

**CONFORMED SUBMISSION TYPE**: ARS

**PUBLIC DOCUMENT COUNT**: 1

**CONFORMED PERIOD OF REPORT**: 20250630

**FILED AS OF DATE**: 20251010

**DATE AS OF CHANGE**: 20251010

**EFFECTIVENESS DATE**: 20251010

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** Winchester Bancorp, Inc./MD/
- **CENTRAL INDEX KEY:** 0002047235
- **STANDARD INDUSTRIAL CLASSIFICATION:** SAVINGS INSTITUTIONS, NOT FEDERALLY CHARTERED [6036]
- **ORGANIZATION NAME:** 02 Finance
- **EIN:** 000000000
- **STATE OF INCORPORATION:** MD
- **FISCAL YEAR END:** 0630

**FILING VALUES:**
- **FORM TYPE:** ARS
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 001-42627
- **FILM NUMBER:** 251386626

**BUSINESS ADDRESS:**
- **STREET 1:** 661 MAIN STREET
- **CITY:** WINCHESTER
- **STATE:** MA
- **ZIP:** 01890
- **BUSINESS PHONE:** (781) 729-2130

**MAIL ADDRESS:**
- **STREET 1:** 661 MAIN STREET
- **CITY:** WINCHESTER
- **STATE:** MA
- **ZIP:** 01890

### Attached PDF Documents

**Attachment 1:** `wsbk_ars_2025.pdf`

_No text found in this document._