A Central Index Key (CIK) is a unique identifier assigned by the SEC to each filer.

Why are some filings missing?

New filings appear as the SEC updates EDGAR, and older records can vary by availability.

How often is this page updated?

Updates follow new EDGAR submissions and periodic data refreshes.

SEC EDGAR filings, ownership reports, and insider transactions for MHC Winchester Bancorp.

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MHC Winchester Bancorp has filed 2 SEC EDGAR filings since 14 May 2025

Recent SEC filings for MHC Winchester Bancorp including 3, SCHEDULE 13D.

Form type	Document	Filing	Description	Filing date	Reporting date	File number(s)
3	Open 3 document	View SEC filing for 3	FORM 3	14 May 2025	30 Apr 2025	001-42627
SCHEDULE 13D	Open SCHEDULE 13D document	View SEC filing for SCHEDULE 13D		14 May 2025

MHC Winchester Bancorp files with the SEC under CIK 0002068396. This page aggregates EDGAR filings and related ownership activity.

What is a CIK?: A Central Index Key (CIK) is a unique identifier assigned by the SEC to each filer.
Why are some filings missing?: New filings appear as the SEC updates EDGAR, and older records can vary by availability.
How often is this page updated?: Updates follow new EDGAR submissions and periodic data refreshes.