Winchester Bancorp, Inc./MD/ - WSBK
Detailed investor-level table based on 13F positions.
Methodology:
Market value and % of portfolio use SEC reported VALUE ($000).
For PUT/CALL positions this reflects reported underlying exposure, not premium cash paid/received.
Details.
Rows: 0
| Investor | History | Status | Shares held | Market value ($000) | % of portfolio | Previous % | Rank | Change in shares | % change in shares | Source | Date reported |
|---|---|---|---|---|---|---|---|---|---|---|---|
| MANGROVE PARTNERS IM, LLC | History | No change | 186,201 | 2,446 | 0.16% | 0.16% | 1 | 0 | 0.0% | Q2 2026 | Aug 14, 2026 |
| VANGUARD CAPITAL MANAGEMENT LLC | History | No change | 178,941 | 2,351 | 0.0% | 0.0% | 2 | 0 | 0.0% | Q2 2026 | Aug 13, 2026 |
| Northstar Financial Companies, Inc. | History | No change | 70,000 | 919 | 0.62% | 0.62% | 3 | 0 | 0.0% | Q2 2026 | Aug 06, 2026 |
| Integrated Wealth Concepts LLC | History | No change | 57,000 | 748 | 0.0% | 0.0% | 4 | 0 | 0.0% | Q2 2026 | Sep 08, 2026 |
| Oppenheimer & Close, LLC | History | No change | 50,000 | 657 | 0.41% | 0.41% | 5 | 0 | 0.0% | Q2 2026 | Aug 12, 2026 |
| RENAISSANCE TECHNOLOGIES LLC | History | No change | 31,400 | 412 | 0.0% | 0.0% | 6 | 0 | 0.0% | Q2 2026 | Aug 13, 2026 |
| GEODE CAPITAL MANAGEMENT, LLC | History | No change | 29,037 | 381 | 0.0% | 0.0% | 7 | 0 | 0.0% | Q2 2026 | Aug 12, 2026 |
| RFG - Bristol Wealth Advisors, LLC | History | Added to | 27,500 | 355 | 0.08% | 0.03% | 8 | +17,342 | 170.72% | Q3 2026 | Oct 09, 2026 |
| ALLIANCEBERNSTEIN L.P. | History | No change | 24,656 | 313 | 0.0% | 0.0% | 9 | 0 | 0.0% | Q2 2026 | Aug 14, 2026 |
| VANGUARD FIDUCIARY TRUST CO | History | No change | 22,708 | 298 | 0.0% | 0.0% | 10 | 0 | 0.0% | Q2 2026 | Aug 13, 2026 |
| RAYMOND JAMES FINANCIAL INC | History | No change | 20,000 | 262 | 0.0% | 0.0% | 11 | 0 | 0.0% | Q2 2026 | Aug 14, 2026 |
| Steward Partners Investment Advisory, LLC | History | No change | 19,127 | 251 | 0.0% | 0.0% | 12 | 0 | 0.0% | Q2 2026 | Aug 13, 2026 |
| EagleClaw Capital Managment, LLC | History | No change | 16,000 | 210 | 0.03% | 0.03% | 13 | 0 | 0.0% | Q2 2026 | Aug 10, 2026 |
| LPL Financial LLC | History | No change | 15,500 | 203 | 0.0% | 0.0% | 14 | 0 | 0.0% | Q2 2026 | Aug 07, 2026 |
| BlackRock, Inc. | History | No change | 14,202 | 186 | 0.0% | 0.0% | 15 | 0 | 0.0% | Q2 2026 | Aug 07, 2026 |
| Sachetta, LLC | History | No change | 8,000 | 105 | 0.05% | 0.05% | 16 | 0 | 0.0% | Q2 2026 | Jul 15, 2026 |
| EASTERN BANK | History | No change | 4,000 | 51 | 0.0% | 0.0% | 17 | 0 | 0.0% | Q3 2026 | Oct 05, 2026 |
| ROYAL BANK OF CANADA | History | No change | 2,000 | 26 | 0.0% | 0.0% | 18 | 0 | 0.0% | Q2 2026 | Aug 14, 2026 |
| Tower Research Capital LLC (TRC) | History | No change | 157 | 2 | 0.0% | 0.0% | 19 | 0 | 0.0% | Q2 2026 | Aug 11, 2026 |
| CITIGROUP INC | History | New | 12 | 0 | — | — | — | +12 | New | Q3 2026 | Nov 04, 2026 |
| UBS Group AG | History | No change | 18 | 0 | — | — | — | 0 | 0.0% | Q2 2026 | Aug 13, 2026 |
| OSAIC HOLDINGS, INC. | History | No change | 16 | 0 | — | — | — | 0 | 0.0% | Q2 2026 | Aug 14, 2026 |