{"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","discovered_at":"2026-05-14T18:03:05.861430+00:00","generated_at":"2026-05-24T11:04:04.547524+00:00","sec_items":["8.01","9.01"],"event_type":"other_material","sentiment":"neutral","materiality_score":0.4,"calibrated_materiality_score":0.4,"confidence":"medium","headline":"Winchester Bancorp starts community offering for mutual holding company reorganization","bullets":["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."],"urls":{"canonical":"https://secwatch.observer/filing/0001193125-25-058404","json":"https://secwatch.observer/filing/0001193125-25-058404.json","markdown":"https://secwatch.observer/filing/0001193125-25-058404.md","text":"https://secwatch.observer/filing/0001193125-25-058404.txt","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"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-05-24T11:04:04.547524+00:00"},"review":{"review_status":"machine_generated","human_reviewed":false,"corrected":false,"correction_note":null,"correction_timestamp":null,"superseded_by":null,"related_filings":[]},"source_grounded_claims":[],"license":"Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer"}