Latest Period
Q1 2026
Security Snapshot
Winchester Bancorp, Inc./MD/ - Common Stock, $0.01 par value per share (WSBK) Institutional Ownership
CUSIP: 97269D103
13F Institutional Holders and Ownership History from Q2 2025 to Q1 2026
Institutions Reporting
19
Shares (Excl. Options)
750,531
Price
$12.70
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- Type / Class
- Equity / Common Stock, $0.01 par value per share
- Symbol
- WSBK on Nasdaq
- Shares outstanding
- 9,295,376
- Price per share
- $13.00
- All holders as of 31 Mar 2026
- Q1 2026
- Total 13F shares
- 750,531
- Total reported value
- $9,476,262
- % of total 13F portfolios
- 0%
- Share change
- -153,085
- Value change
- -$1,895,458
- Number of holders
- 19
- Price from insider filings
- $13.00
Reported Shares, Excluding Options vs Price
Reported Value, Excluding Options
Total Investors
Key facts
- WSBK - Winchester Bancorp, Inc./MD/ - Common Stock, $0.01 par value per share is tracked under CUSIP 97269D103.
- 19 institutions reported positions in Q1 2026.
- 1 significant owner is listed from Schedule 13D/13G reporting.
Change
- Holder count moved from 21 to 19 between Q4 2025 and Q1 2026.
- Reported value moved from $8,060,190 to $9,476,262.
Research use
- You can quickly see who holds this security, then open quarter and manager detail pages for full evidence.
- 13F and Schedule 13D/13G sections are kept together so you can cross-check institutional and beneficial ownership context.
Evidence
Source: SEC Form 13F
Open SEC Evidence
Latest holder context comes from 19 institutions filings for Q1 2026.
Security key
97269D103
Latest holder period
Q1 2026
13F holders
19
13D/G owners
1
CIK / CUSIP context first
Open Q1 2026 holders
WSBK full holder history
Winchester Bancorp, Inc./MD/ SEC filings
Winchester Bancorp, Inc./MD/ company facts
Winchester Bancorp, Inc./MD/ insider transactions
Broader feeds
Recent Quarterly Holder Reports
Open recent reporting periods for CUSIP 97269D103:
Significant Owners of Winchester Bancorp, Inc./MD/ - Common Stock, $0.01 par value per share (WSBK) based on Schedule 13D/G filings
| Filer | Ownership | Change % | Holdings Value | Net Change | Nb Shares | Change % | Reporting Name | Report Period |
|---|---|---|---|---|---|---|---|---|
| Winchester Bancorp, MHC | 55% | 5,112,457 | Winchester Bancorp, MHC | 30 Apr 2025 |
As of 31 Mar 2026, 19 institutional investors reported holding 750,531 shares of Winchester Bancorp, Inc./MD/ - Common Stock, $0.01 par value per share (WSBK). This represents 8.1% of the company’s total 9,295,376 outstanding shares.