Winchester Bancorp, Inc. · NASDAQ:WSBK
Winchester Bancorp, Inc. shareholders
As of Jun 30, 2026, 20 institutions reported holding Winchester Bancorp, Inc., 8.4% of its shares. Largest: Vanguard, Mangrove Partners Im, LLC and Integrated Wealth Concepts LLC. New holders, exits, insiders and big stakes, each with its filing.
| Holder | Shares | % of Winchester Bancorp, Inc. | Change | Filed |
|---|---|---|---|---|
| Vanguard | 202K | 2.2% | −2,426 | Aug 13, 2026 |
| Mangrove Partners Im, LLC | 186K | 2.0% | no change | Aug 14, 2026 |
| Integrated Wealth Concepts LLC | 82,000 | 0.88% | +25,000 | Aug 12, 2026 |
| Northstar Financial Companies, Inc. | 70,000 | 0.75% | no change | Aug 6, 2026 |
| Oppenheimer & Close, LLC | 50,000 | 0.54% | no change | Aug 12, 2026 |
| Renaissance Technologies | 31,400 | 0.34% | +400 | Aug 13, 2026 |
| Geode Capital | 29,037 | 0.31% | +15,117 | Aug 12, 2026 |
| AllianceBernstein | 24,656 | 0.27% | no change | Aug 14, 2026 |
| Raymond James Financial Inc | 20,000 | 0.22% | no change | Aug 14, 2026 |
| Steward Partners Investment Advisory, LLC | 19,127 | 0.21% | no change | Aug 13, 2026 |