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
- Type / Class
- Equity / Common Stock, $0.01 par value per share
- Shares outstanding
- 9,295,376
- Total 13F shares
- 750,531
- Share change
- -153,085
- Total reported value
- $9,476,262
- Price per share
- $12.70
- Number of holders
- 19
- Value change
- -$1,895,458
- Number of buys
- 3
- Number of sells
- 6
Report period
Q1 2026
Institutions
19
Top holders
10
WSBK full security history
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:
Top shareholders 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. Ownership % is shown only when it is directly reported or safely comparable across share classes.
Methodology: rows are grouped by holder and ranked by the holder's primary source value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.
| Holder | Source | Role / Reporting | Ownership % | Shares | Holdings Value | 12M Net Δ | As of | Details |
|---|---|---|---|---|---|---|---|---|
| Mhc Winchester Bancorp |
3/4/5
13D/G
|
10%+ Owner · Winchester Bancorp, MHC |
55%
from 13D/G
|
5,112,457
|
$47,699,224 | — | 30 Apr 2025 | |
| William Preston Hood |
3/4/5
|
Director |
0.55%
|
51,050
|
$470,170 | +$9,671 | 10 Jun 2025 | |
| MANGROVE PARTNERS IM, LLC |
13F
|
Company |
2%
|
186,201
|
$1,945,800 | — | 31 Dec 2025 | |
| M3F, Inc. |
13F
|
Company |
1.5%
|
143,986
|
$1,505,000 | — | 31 Dec 2025 | |
| VANGUARD GROUP INC |
13F
|
Company |
0.77%
|
71,736
|
$749,641 | — | 31 Dec 2025 | |
| Northstar Financial Companies, Inc. |
13F
|
Company |
0.75%
|
70,000
|
$731,500 | — | 31 Dec 2025 | |
| Integrated Wealth Concepts LLC |
13F
|
Company |
0.61%
|
57,000
|
$595,650 | — | 31 Dec 2025 | |
| Oppenheimer & Close, LLC |
13F
|
Company |
0.54%
|
50,000
|
$522,500 | — | 31 Dec 2025 | |
| RENAISSANCE TECHNOLOGIES LLC |
13F
|
Company |
0.29%
|
26,502
|
$276,946 | — | 31 Dec 2025 | |
| GEODE CAPITAL MANAGEMENT, LLC |
13F
|
Company |
0.29%
|
26,502
|
$276,945 | — | 31 Dec 2025 | |
| ALLIANCEBERNSTEIN L.P. |
13F
|
Company |
0.27%
|
24,656
|
$257,655 | — | 31 Dec 2025 | |
| CITADEL ADVISORS LLC |
13F
|
Company |
0.23%
|
20,999
|
$219,440 | — | 31 Dec 2025 | |
| RAYMOND JAMES FINANCIAL INC |
13F
|
Company |
0.22%
|
20,000
|
$209,000 | — | 31 Dec 2025 | |
| Steward Partners Investment Advisory, LLC |
13F
|
Company |
0.21%
|
19,127
|
$199,877 | — | 31 Dec 2025 | |
| MILLENNIUM MANAGEMENT LLC |
13F
|
Company |
0.17%
|
16,082
|
$168,057 | — | 31 Dec 2025 | |
| EagleClaw Capital Managment, LLC |
13F
|
Company |
0.17%
|
16,000
|
$167,200 | — | 31 Dec 2025 | |
| LPL Financial LLC |
13F
|
Company |
0.17%
|
15,500
|
$161,975 | — | 31 Dec 2025 | |
| MORGAN STANLEY |
13F
|
Company |
0.04%
|
4,000
|
$41,800 | — | 31 Dec 2025 | |
| EASTERN BANK |
13F
|
Company |
0.03%
|
2,500
|
$26,125 | — | 31 Dec 2025 | |
| Tower Research Capital LLC (TRC) |
13F
|
Company |
0%
|
255
|
$2,665 | — | 31 Dec 2025 | |
| BANK OF AMERICA CORP /DE/ |
13F
|
Company |
0%
|
227
|
$2,373 | — | 31 Dec 2025 | |
| UBS Group AG |
13F
|
Company |
0%
|
3
|
$31 | — | 31 Dec 2025 | |
| CITIGROUP INC |
13F
|
Company |
0%
|
1
|
$10 | — | 31 Dec 2025 | |
| Connolly Carole Ann Pierce |
3/4/5
|
Director |
—
class O/S missing
|
75,000
|
— | — | 30 Apr 2025 | |
| John A. Carroll |
3/4/5
|
President & CEO, Director |
—
class O/S missing
|
52,000
|
— | — | 05 May 2025 | |
| Deborah Anne Carson |
3/4/5
|
Director |
—
class O/S missing
|
44,510
|
— | — | 30 Apr 2025 | |
| Sara Perkins Salehpour |
3/4/5
|
Director |
—
class O/S missing
|
35,000
|
— | — | 30 Apr 2025 | |
| Paul Vincent Cheremka |
3/4/5
|
SVP |
—
class O/S missing
|
25,000
|
— | — | 30 Apr 2025 | |
| Alan George Macdonald |
3/4/5
|
Director |
—
class O/S missing
|
20,000
|
— | — | 30 Apr 2025 | |
| Edward J. Merritt |
3/4/5
|
Director |
—
class O/S missing
|
20,000
|
— | — | 30 Apr 2025 | |
| Elda Heller |
3/4/5
|
EVP and CFO |
—
class O/S missing
|
20,000
|
— | — | 30 Apr 2025 | |
| Neal Joseph Harte |
3/4/5
|
Director |
—
class O/S missing
|
10,000
|
— | — | 30 Apr 2025 | |
| David Preston Hood |
3/4/5
|
Director |
—
class O/S missing
|
7,000
|
— | — | 30 Apr 2025 | |
| Geoffrey Adams Curtis |
3/4/5
|
Director |
—
class O/S missing
|
5,000
|
— | — | 30 Apr 2025 | |
| Paula Marie Cotter |
3/4/5
|
Director |
—
class O/S missing
|
2,500
|
— | — | 30 Apr 2025 |
Institutional Holders of Winchester Bancorp, Inc./MD/ - Common Stock, $0.01 par value per share (WSBK) as of Q1 2026
As of 31 Mar 2026,
Winchester Bancorp, Inc./MD/ - Common Stock, $0.01 par value per share (WSBK) was held by
19 institutional
shareholders
that filed Form 13F with the SEC.
Together, they reported ownership of
750,531 shares.
The largest 10 holders included
MANGROVE PARTNERS IM, LLC, VANGUARD CAPITAL MANAGEMENT LLC, Northstar Financial Companies, Inc., Integrated Wealth Concepts LLC, Oppenheimer & Close, LLC, RENAISSANCE TECHNOLOGIES LLC, ALLIANCEBERNSTEIN L.P., M3F, Inc., VANGUARD FIDUCIARY TRUST CO, and RAYMOND JAMES FINANCIAL INC.
This page lists
19
institutional shareholders reporting positions in this security
for the Q1 2026 filing period.
| Investor | Option | Weight % | Change % | Value $ | * Price | Shares | Share Change | Activity | Report Period |
|---|
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 Diff $ | Value Chg % |
|---|
Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).
Quarterly Holders Trend
Quarterly Value Trend
Quarterly Shares Trend
* Reported Price is the price of the security as of the portfolio date. This value is significant in that it is the last known price at which the security was still held.
An asterisk sign (*) next to the price indicates that the price is likely invalid.
An asterisk sign (*) next to the price indicates that the price is likely invalid.