Security key
97269D103
Winchester Bancorp, Inc./MD/ - Common Stock, $0.01 par value per share (WSBK)
CUSIP: 97269D103
Q1 2026 13F Holders as of 31 Mar 2026
- Security type / class
- Equity / Common Stock, $0.01 par value per share
- Total 13F shares
- 750,531
- Total 13F value
- $9,476,262
- Share change
- -153,085
- SEC-reported price per share
- $12.70
- Number of holders
- 19
- Value change
- -$1,895,458
- Number of buys
- 3
- Number of sells
- 6
- Shares outstanding
- 9,295,376
Holder snapshot
6 signals
Security identity
Names, identifiers, and filing context for this profile.
1 source field
Report period
Q1 2026
Institutions
19
Top holders
10
WSBK full security history
Ownership snapshot
Full 13F holder table
Newer quarter: Q2 2026
Previous quarter: Q4 2025
Winchester Bancorp, Inc./MD/ SEC filings
Winchester Bancorp, Inc./MD/ company facts
Broader feeds
Reporting periods
Holder history for CUSIP 97269D103
Recent filing periods:
Ownership snapshot
Top reported holders of WSBK - Winchester Bancorp, Inc./MD/ - Common Stock, $0.01 par value per share (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
15/15
Latest evidence
31 Dec 2025
3/4/5
13D/G
13F
Lead comparable stake: 55%
13D/G row: Mhc Winchester Bancorp
Showing 1-6 of 15 holder rows.
Quick read
Mhc Winchester Bancorp leads the comparable SEC ownership view at 55%.
15 of 15 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%
MANGROVE PARTNERS IM, LLC
2%
M3F, Inc.
1.5%
VANGUARD GROUP INC
0.77%
Ownership % is shown only when SEC disclosures are safely comparable across share classes.
Detailed SEC evidence table Showing 1-6 of 15 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 |
| MANGROVE PARTNERS IM, LLC |
13F
Company
|
2%
|
$1,945,800
186,201 shares
|
— | 31 Dec 2025 |
| M3F, Inc. |
13F
Company
|
1.5%
|
$1,505,000
143,986 shares
|
— | 31 Dec 2025 |
| VANGUARD GROUP INC |
13F
Company
|
0.77%
|
$749,641
71,736 shares
|
— | 31 Dec 2025 |
| Northstar Financial Companies, Inc. |
13F
Company
|
0.75%
|
$731,500
70,000 shares
|
— | 31 Dec 2025 |
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.
13F holder rows
Institutional holders as of Q1 2026
Investor-level positions for this CUSIP, loaded as an interactive table.
Institutions
19
Shares
750,531
Rows available
19
| Investor | Option | Weight % | Change % | SEC-reported value | * Price | Shares | Share Change | Activity | Report Period |
|---|
* SEC-reported price is the security price as of the portfolio date and can indicate the last known price at which the security was still held. The marker flags a reported price that did not pass the local price check.
Compare Q1 2026 vs Q4 2025 Across Filers
Q4 2025 holders
21
Q1 2026 holders
19
Holder diff
-2
| Investor | Q4 2025 Shares | Q1 2026 Shares | Share Diff | Share Chg % | Q4 2025 value | Q1 2026 value | Value change | Value Chg % |
|---|
Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).
Quarterly Holders Trend
Quarterly Value Trend
Quarterly Shares Trend