Comparable stake leader
Mhc Winchester Bancorp
SEC ownership of Winchester Bancorp, Inc./MD/
Top holders, 13D/G large-stake signals, insider positions, and transaction flow tied to CIK 0002047235.
Disclosed value leader
Mhc Winchester Bancorp
Comparable rows
26/37
Latest evidence
30 Jun 2026
- Public ticker
- WSBK on Nasdaq
- Parsed ownership sources
-
3/4/5, 13D/G, and 13F
Source: Parsed SEC ownership filingsUse: Compare filing families carefully
- Largest SEC-reported holder
-
Mhc Winchester Bancorp
Ranking: Comparable ownership first, then disclosed value
- Comparable ownership rows
-
26 of 37
Meaning: Rows with safely comparable ownership %
- Latest 13D/G holder
-
Mhc Winchester Bancorp
Source: Latest parsed Schedule 13D/G stake
- Latest parsed ownership date
-
30 Jun 2026
Freshness: Most recent filing date in this holder set
- Issuer CIK
- 0002047235
- Issuer location
- Winchester, MA
Ownership snapshot
CIK-linked ownership evidence from parsed SEC filings.
3 signals
Issuer
Names, identifiers, and filing context for this profile.
2 identity fields
Ownership snapshot
Top shareholders of Winchester Bancorp, Inc./MD/ (13F + 13D/G + 3/4/5)
Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.
Comparable stake leader
Mhc Winchester Bancorp
Disclosed value leader
Mhc Winchester Bancorp
Comparable rows
26/37
Latest evidence
30 Jun 2026
3/4/5
13D/G
13F
Lead comparable stake: 55%
11 rows are not safely comparable across share classes.
13D/G row: Mhc Winchester Bancorp
Showing 1-8 of 37 holder rows.
Quick read
Mhc Winchester Bancorp leads the comparable SEC ownership view at 55%.
26 of 37 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.
Open SEC evidence
Opens Mhc Winchester Bancorp's linked filing trail.
Comparable ownership
Top 5
Mhc Winchester Bancorp
55%
William Preston Hood
0.55%
John Ingalls Snow III
0.24%
Edward J. Merritt
0.23%
Stephen Harry Boodakian
0.11%
Ownership % is shown only when SEC disclosures are safely comparable across share classes.
Detailed SEC evidence table Showing 1-8 of 37 holder rows
| Holder | Evidence | Ownership % | Position | 12M Net Δ | As of |
|---|---|---|---|---|---|
| Mhc Winchester Bancorp |
3/4/5
13D/G
10%+ Owner · Winchester Bancorp, MHC
|
55%
from 13D/G
|
$47,699,224
5,112,457 shares
|
— | 30 Apr 2025 |
| William Preston Hood |
3/4/5
Director
|
0.55%
|
$470,170
51,050 shares
|
— | 10 Jun 2025 |
| John Ingalls Snow III |
3/4/5
Director
|
0.24%
|
$286,305
22,435 shares
|
+$100,694 | 07 May 2026 |
| Edward J. Merritt |
3/4/5
Director
|
0.23%
|
$266,875
20,915 shares
|
+$11,675 | 26 May 2026 |
| Stephen Harry Boodakian |
3/4/5
Director
|
0.11%
|
$127,537
10,000 shares
|
+$32,325 | 01 May 2026 |
| MANGROVE PARTNERS IM, LLC |
13F
Company
|
2%
|
$2,446,681
186,201 shares
|
— | 30 Jun 2026 |
| VANGUARD CAPITAL MANAGEMENT LLC |
13F
Company
|
1.9%
|
$2,351,285
178,941 shares
|
— | 30 Jun 2026 |
| Northstar Financial Companies, Inc. |
13F
Company
|
0.75%
|
$919,800
70,000 shares
|
— | 30 Jun 2026 |
How to read this table
Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.
Forms 3/4/5 flow
Insider trading overview
Net insider flow leans to buying over the last 12 months. Net value: +$145,332.
Buys
$145,332
Insiders: 4
Sells
$0
Insiders: 0
Net
+$145,332
Shares: +11,300
Window
Last 12 months
4 rolling buckets
Buy value
Sell value
Shares: 11,300
Shares: 0
| Window (months) | Buy shares | Sell shares | Buy value | Sell value | Net value |
|---|---|---|---|---|---|
| 0-3 | 0 | 0 | $0 | $0 | $0 |
| 3-6 | 11,300 | 0 | $145,332 | $0 | +$145,332 |
| 6-9 | 0 | 0 | $0 | $0 | $0 |
| 9-12 | 0 | 0 | $0 | $0 | $0 |
Reporting owners
Insider holders from Forms 3/4/5
Showing 1-16 of 16 reporting-owner rows connected to Winchester Bancorp, Inc./MD/. Open a relationship link for the CIK-to-CIK filing trail.
Rows
16
Largest Forms 3/4/5 holder
Mhc Winchester Bancorp
Net 12M change
+$145,332
Latest report
26 May 2026
| Name | Relationship | Holdings Value | Past Year Net Change | Change % | Valuation | Report Date |
|---|---|---|---|---|---|---|
| Mhc Winchester Bancorp | 10%+ Owner | $47,699,224 | Mixed | 30 Apr 2025 | ||
| John A. Carroll | President & CEO, Director | $642,749 | +$638 | +0.1% | Mixed | 21 May 2026 |
| William Preston Hood | Director | $470,170 | Filing P/S | 10 Jun 2025 | ||
| John Ingalls Snow III | Director | $286,305 | +$100,694 | +54% | Mixed | 07 May 2026 |
| Edward J. Merritt | Director | $266,875 | +$11,675 | +4.6% | Filing P/S | 26 May 2026 |
| Stephen Harry Boodakian | Director | $127,537 | +$32,325 | +34% | Mixed | 01 May 2026 |
| Alan George Macdonald | Director | Mixed | 30 Apr 2025 | |||
| Paul Vincent Cheremka | Svp | Mixed | 30 Apr 2025 | |||
| Connolly Carole Ann Pierce | Director | Mixed | 30 Apr 2025 | |||
| Elda Heller | EVP and CFO | Mixed | 30 Apr 2025 | |||
| Neal Joseph Harte | Director | Mixed | 30 Apr 2025 | |||
| David Preston Hood | Director | Mixed | 30 Apr 2025 | |||
| Deborah Anne Carson | Director | Mixed | 30 Apr 2025 | |||
| Paula Marie Cotter | Director | Mixed | 30 Apr 2025 | |||
| Sara Perkins Salehpour | Director | Mixed | 30 Apr 2025 | |||
| Geoffrey Adams Curtis | Director | Mixed | 30 Apr 2025 |
Recent insider transactions for Winchester Bancorp, Inc./MD/
Showing up to 300 recent insider transactions from the last 12 months.
| Insider | Symbol | Class | Transaction | % | SEC-reported value | SEC-reported price | Shares | Shares owned | Date | Ownership |
|---|---|---|---|---|---|---|---|---|---|---|
| Edward J. Merritt | WSBK | Common Stock | Purchase | 4.58% | $11,675 | $12.76 | 915 | 20,915 | 26 May 2026 | By IRA |
| John A. Carroll | WSBK | Common Stock | Purchase | $638 | $12.75 | 50 | 50 | 21 May 2026 | By Spouse as custodian for child | |
| John Ingalls Snow III | WSBK | Common Stock | Purchase | 9.58% | $22,059 | $12.79 | 1,725 | 19,735 | 07 May 2026 | Direct |
| John Ingalls Snow III | WSBK | Common Stock | Gift | 200 | 200 | 05 May 2026 | By Child | |||
| John Ingalls Snow III | WSBK | Common Stock | Gift | -3.22% | -600 | 18,010 | 05 May 2026 | Direct | ||
| John Ingalls Snow III | WSBK | Common Stock | Purchase | 48.9% | $78,636 | $12.87 | 6,110 | 18,610 | 05 May 2026 | Direct |
| Stephen Harry Boodakian | WSBK | Common Stock | Purchase | $32,325 | $12.93 | 2,500 | 2,500 | 01 May 2026 | By IRA |
* marks a reported price that did not pass the local price check.