WSBKNasdaqSavings Institutions, Not Federally CharteredFiscal year ends December 31
Winchester Bancorp, Inc./MD/
Financials through Q4 FY2026, quarter ended Jun 30, 2026Last filing: 10-K on Sep 16, 2026
$12.94+0.02 (+0.14%)
Close on Oct 19, 2026
- Market cap
- $116.15M
- P/E (TTM)
- 26.4
- Dividend yield
- –
Ownership
Institutional holdings as of Jun 30, 2026, from 13F filings
Held by institutions
8.4%
1M of 9M shares
Institutional holders
21
5 new, 3 sold out
Net institutional buying
0M
In Q2 2026
Insider trades, 12 months
6 buys · 0 sales
Net bought $145.33K
Shares held by institutions
Holders of more than 5%
Latest Schedule 13D (active) or 13G (passive) filed by each holder
| Holder | Shares | % of class | Filing | As of |
|---|---|---|---|---|
| Winchester Bancorp, MHC | 5,112,457 | 55.00% | 13D (active) | Apr 30, 2025 |
Top institutional holders
13F holdings as of Jun 30, 2026
| Holder | Shares | % of WSBK | Value | Change | % of portfolio |
|---|---|---|---|---|---|
| Mangrove Partners | 186,201 | 2.00% | $2.45M | – | 0.16% |
| Vanguard Capital Management LLC | 178,941 | 1.93% | $2.35M | −2,572 | 0.00% |
| Integrated Wealth Concepts LLC | 82,000 | 0.88% | $1.08M | +25,000 | 0.01% |
| Northstar Financial Companies, Inc. | 70,000 | 0.75% | $919.80K | – | 0.62% |
| Oppenheimer & Close, LLC | 50,000 | 0.54% | $657.00K | – | 0.41% |
| Renaissance Technologies LLC | 31,400 | 0.34% | $412.60K | +400 | 0.00% |
| Geode Capital Management, LLC | 29,037 | 0.31% | $381.81K | +15,117 | 0.00% |
| Alliancebernstein L.P. | 24,656 | 0.27% | $313.13K | – | 0.00% |
| Vanguard Fiduciary Trust Co | 22,708 | 0.24% | $298.38K | +146 | 0.00% |
| Raymond James Financial Inc | 20,000 | 0.22% | $262.80K | – | 0.00% |
| Steward Partners Investment Advisory, LLC | 19,127 | 0.21% | $251.33K | – | 0.00% |
| EagleClaw Capital Managment, LLC | 16,000 | 0.17% | $210.24K | – | 0.03% |
| LPL Financial LLC | 15,500 | 0.17% | $203.67K | – | 0.00% |
| BlackRock, Inc. | 14,202 | 0.15% | $186.61K | New | 0.00% |
| RFG - Bristol Wealth Advisors, LLC | 10,158 | 0.11% | $133.48K | New | 0.03% |
| Sachetta, LLC | 8,000 | 0.09% | $105.12K | New | 0.05% |
| Eastern Bank | 4,000 | 0.04% | $52.56K | +1,500 | 0.00% |
| Royal Bank of Canada | 2,000 | 0.02% | $26.00K | New | 0.00% |
| Tower Research Capital LLC (TRC) | 157 | 0.00% | $2.06K | −137 | 0.00% |
| UBS Group AG | 18 | 0.00% | $237 | −111 | 0.00% |
Institutional buying and selling by quarter
Positions opened, added to, reduced and closed by 13F filers
| Quarter | Holders | Shares held | % of shares | New / added | Reduced / closed | Shares bought | Shares sold |
|---|---|---|---|---|---|---|---|
| Q2 2026 | 21 | 1M | 8.4% | 5 / 5 | 3 / 3 | 0M | 0M |
| Q1 2026 | 19 | 1M | 8.1% | 2 / 3 | 3 / 3 | 0M | 0M |
| Q4 2025 | 21 | 1M | 8.3% | 2 / 6 | 5 / 3 | 0M | 0M |
| Q3 2025 | 22 | 1M | 7.6% | 4 / 5 | 7 / 0 | 0M | 0M |
| Q2 2025 | 18 | 1M | 6.7% | 18 / 0 | 0 / 0 | 1M | 0M |
Top mutual fund and ETF holders
Latest monthly portfolio reports (Form N-PORT)
| Fund | Shares | % of WSBK | Value | % of fund | As of |
|---|---|---|---|---|---|
| Vanguard Total Stock Market Index Fund | 132,140 | 1.42% | $1.74M | 0.00% | Jun 30, 2026 |
| Vanguard Extended Market Index Fund | 44,528 | 0.48% | $585.10K | 0.00% | Jun 30, 2026 |
| iShares Micro-Cap ETF | 13,357 | 0.14% | $175.51K | 0.01% | Jun 30, 2026 |
| Fidelity Series Total Market Index Fund | 6,410 | 0.07% | $81.41K | 0.00% | May 31, 2026 |
| Vanguard Balanced Index Fund | 2,273 | 0.02% | $29.87K | 0.00% | Jun 30, 2026 |
| Fidelity Total Market Index Fund | 924 | 0.01% | $11.73K | 0.00% | May 31, 2026 |
| 1290 VT Micro Cap Portfolio | 845 | 0.01% | $11.10K | 0.01% | Jun 30, 2026 |
| Victory Extended Market Index Fund | 419 | 0.00% | $5.45K | 0.00% | Jul 31, 2026 |
Officers, directors and major owners
People who filed Forms 3, 4 or 5 in the last two years
| Name | Role | Shares owned | % of shares | Latest filing |
|---|---|---|---|---|
| John A. Carroll | President & CEO, Director | 50,610 | 0.54% | May 22, 2026 |
| Elda Heller | EVP and CFO | 20,000 | 0.22% | May 7, 2025 |
| Paul Vincent Cheremka | SVP | 25,000 | 0.27% | Apr 30, 2025 |
| Edward J. Merritt | Director | 20,915 | 0.23% | May 27, 2026 |
| John Ingalls Snow III | Director | 22,435 | 0.24% | May 8, 2026 |
| Stephen Harry Boodakian | Director | 10,000 | 0.11% | May 5, 2026 |
| William Preston Hood | Director | 51,050 | 0.55% | Jun 10, 2025 |
| Connolly Carole Ann Pierce | Director | 75,000 | 0.81% | May 7, 2025 |
| Paula Marie Cotter | Director | 2,500 | 0.03% | Apr 30, 2025 |
| Alan George Macdonald | Director | 20,000 | 0.22% | Apr 30, 2025 |
| Sara Perkins Salehpour | Director | 35,000 | 0.38% | Apr 30, 2025 |
| David Preston Hood | Director | 7,000 | 0.08% | Apr 30, 2025 |
| Geoffrey Adams Curtis | Director | 5,000 | 0.05% | Apr 30, 2025 |
| Neal Joseph Harte | Director | 10,000 | 0.11% | Apr 30, 2025 |
| Deborah Anne Carson | Director | 44,510 | 0.48% | Apr 30, 2025 |
| Winchester Bancorp, MHC | 10% owner | 5,112,457 | 55.00% | May 14, 2025 |
Insider trades
Common stock transactions reported on Form 4, newest first
| Insider | Date | Transaction | Shares | Price | Value | Shares after |
|---|---|---|---|---|---|---|
| Edward J. Merritt Director | May 26, 2026 | Buy | +915 | $12.76 | $11.68K | 20,915 |
| John A. Carroll President & CEO, Director | May 21, 2026 | Buy | +50 | $12.75 | $638 | 50 |
| John Ingalls Snow III Director | May 7, 2026 | Buy | +200 | $12.77 | $2.55K | 19,735 |
| John Ingalls Snow III Director | May 7, 2026 | Buy | +1,525 | $12.79 | $19.50K | 19,535 |
| John Ingalls Snow III Director | May 5, 2026 | Gift | −600 | – | – | 18,010 |
| John Ingalls Snow III Director | May 5, 2026 | Gift | +200 | – | – | 200 |
| John Ingalls Snow III Director | May 5, 2026 | Buy | +6,110 | $12.87 | $78.64K | 18,610 |
| Stephen Harry Boodakian Director | May 1, 2026 | Buy | +2,500 | $12.93 | $32.33K | 2,500 |
| William Preston Hood Director | Jun 10, 2025 | Buy | +1,050 | $9.21 | $9.67K | 51,050 |
| William Preston Hood Director | May 14, 2025 | Buy | +3,900 | $9.58 | $37.36K | 48,900 |
| William Preston Hood Director | May 14, 2025 | Buy | +300 | $9.59 | $2.88K | 49,200 |
| William Preston Hood Director | May 14, 2025 | Buy | +800 | $9.60 | $7.68K | 50,000 |
| William Preston Hood Director | May 8, 2025 | Buy | +2,353 | $9.65 | $22.71K | 39,800 |
| William Preston Hood Director | May 8, 2025 | Buy | +5,200 | $9.65 | $50.18K | 45,000 |
| William Preston Hood Director | May 8, 2025 | Buy | +2,447 | $9.63 | $23.56K | 37,447 |
| William Preston Hood Director | May 7, 2025 | Buy | +4,356 | $9.70 | $42.25K | 35,000 |
| William Preston Hood Director | May 7, 2025 | Buy | +839 | $9.69 | $8.13K | 30,644 |
| William Preston Hood Director | May 7, 2025 | Buy | +300 | $9.69 | $2.91K | 29,805 |
| William Preston Hood Director | May 7, 2025 | Buy | +100 | $9.60 | $960 | 25,100 |
| William Preston Hood Director | May 7, 2025 | Buy | +297 | $9.62 | $2.86K | 25,397 |
| William Preston Hood Director | May 7, 2025 | Buy | +2,596 | $9.65 | $25.05K | 27,993 |
| William Preston Hood Director | May 7, 2025 | Buy | +300 | $9.66 | $2.90K | 28,293 |
| William Preston Hood Director | May 7, 2025 | Buy | +424 | $9.67 | $4.10K | 28,717 |
| William Preston Hood Director | May 7, 2025 | Buy | +500 | $9.68 | $4.84K | 29,217 |
| William Preston Hood Director | May 7, 2025 | Buy | +288 | $9.68 | $2.79K | 29,505 |
| John A. Carroll President & CEO, Director | May 5, 2025 | Buy | +5,073 | $9.80 | $49.72K | 21,428 |
| John A. Carroll President & CEO, Director | May 5, 2025 | Buy | +825 | $9.80 | $8.09K | 22,253 |
| John A. Carroll President & CEO, Director | May 5, 2025 | Buy | +2,747 | $9.82 | $26.98K | 25,000 |
| John A. Carroll President & CEO, Director | May 5, 2025 | Buy | +644 | $9.79 | $6.30K | 16,355 |
| John A. Carroll President & CEO, Director | May 5, 2025 | Buy | +2,771 | $9.78 | $27.10K | 15,711 |
| John A. Carroll President & CEO, Director | May 5, 2025 | Buy | +4,466 | $9.75 | $43.54K | 12,940 |
| John A. Carroll President & CEO, Director | May 5, 2025 | Buy | +1,652 | $9.75 | $16.11K | 8,474 |
| John A. Carroll President & CEO, Director | May 5, 2025 | Buy | +4,000 | $9.74 | $38.96K | 6,822 |
| John A. Carroll President & CEO, Director | May 5, 2025 | Buy | +2,222 | $9.73 | $21.62K | 2,822 |
| John A. Carroll President & CEO, Director | May 5, 2025 | Buy | +600 | $9.60 | $5.76K | 600 |
Awards, option exercises, tax withholding and gifts are shown alongside open-market buys and sales. Each name links to the filing on SEC EDGAR.