Winchester Bancorp, Inc. (WSBK)
Nasdaq: WSBK · Savings Institutions, Not Federally Chartered · Winchester, MA · filing with the SEC since 2024
Who owns Winchester Bancorp, Inc.
As filed with the SECHolders of 5% or more
1
Winchester Bancorp, MHC holds 55% of Common Stock, $0.01 par value per share, as its SCHEDULE 13D filed May 14, 2025 says.
Directors and officers
13
report now, of 15 people on the record since 2025. Their holdings as a group are not read here.
Institutions as a whole
n/a
The record does not read the share held by managers that file Form 13F, so none is printed and no split of the rest is estimated. What it holds is the 1 named at left.
Holders of 5% or moreshare of the class, as filed
Winchester Bancorp, MHC
SCHEDULE 13D · filed May 14, 2025 · Common Stock, $0.01 par value per share
What WSBK reports owning in othersstakes of 5% or more, and other ties
Other ties the annual report names
Winchester Bancorp, Mutual Holding Company
An entity · legal entity · owns, named in the 10-K filed Sep 16, 2026
Winchester Savings Bank Charitable Foundation, Inc
An entity · legal entity · owns, named in the 10-K filed Sep 16, 2026
Insider tradesForm 4
0sales
6purchases
0sales on a scheduled plan
0people selling
$0sold, in dollars
$100,000bought, in dollars
Open-market trades on Form 4 from Nov 6, 2025 to Nov 6, 2026. A scheduled plan is a selling program set in advance under SEC rule 10b5-1. The trades are listed as filed and do not feed the grade.
By calendar yearSoldBought
2026 runs to Nov 6, 2026. Dollars as filed, summed by the transaction date.
People who traded in the window4 of 16 on the roster
| Person | Role as filed | Sales | Sold | On a plan | Buys | Bought |
|---|---|---|---|---|---|---|
| Snow John Ingalls III | director | 0 | $0 | 0 | 3 | $100,000 |
| Carroll John A | President & CEO | 0 | $0 | 0 | 1 | $0 |
| Boodakian Stephen Harry | director | 0 | $0 | 0 | 1 | $0 |
| Merritt Edward J | director | 0 | $0 | 0 | 1 | $0 |