UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
WASHINGTON, D.C. 20549

FORM 8-K

CURRENT REPORT

PURSUANT TO SECTION 13 OR 15(D) OF
THE SECURITIES EXCHANGE ACT OF 1934

Date of Report (Date of earliest event reported): April 30, 2025

Winchester Bancorp, Inc.
(Exact Name of Registrant as Specified in Charter)

Maryland
001-42627
33-3361275
(State or Other Jurisdiction
of Incorporation)
(Commission File No.)
(I.R.S. Employer
Identification No.)

661 Main Street, Winchester, Massachusetts
01890
(Address of Principal Executive Offices)
(Zip Code)

Registrant’s telephone number, including area code: (781) 729-2130

Not Applicable
(Former name or former address, if changed since last report)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instruction A.2. below):

☐
Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)
   
☐
Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)
   
☐
Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))
   
☐
Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Securities registered pursuant to Section 12(b) of the Act:

Title of each class
  
Trading
Symbol(s)
  
Name of each exchange on which registered
None
  
None
  
None

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).
Emerging growth company ☒

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐
Item 8.01 Other Events
On April 30, 2025, Winchester Bancorp, Inc. (the “Company”) announced the closing of Winchester Savings Bank’s mutual holding company reorganization and related stock offering of the Company.
A copy of the press release is attached as Exhibit 99.1 to this current report.
Item 9.01 Financial Statements and Exhibits
(d) Exhibits
Exhibit Description
99.1 Press Release dated April 30, 2025


SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the Registrant has duly caused this report to be signed on its behalf by the undersigned, hereunto duly authorized.

   
WINCHESTER BANCORP, INC.
     
     
DATE: May 6, 2025
By:  
 /s/ John A. Carroll
   
John A. Carroll
   
President and Chief Executive Officer