AMERICAN SHARED HOSPITAL SERVICES - AMS
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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| DIMENSIONAL FUND ADVISORS LP | History | Reduced | 206,414 | 435 | 0.0% | 0.0% | 1 | -3,545 | -1.69% | Q4 2025 | Feb 12, 2026 |
| VANGUARD GROUP INC | History | No change | 181,143 | 382 | 0.0% | 0.0% | 2 | 0 | 0.0% | Q4 2025 | Jan 29, 2026 |
| Corient Private Wealth LLC | History | No change | 160,559 | 338 | 0.0% | 0.0% | 3 | 0 | 0.0% | Q4 2025 | Feb 19, 2026 |
| BRIDGEWAY CAPITAL MANAGEMENT, LLC | History | Reduced | 94,120 | 198 | 0.0% | 0.01% | 4 | -2,571 | -2.66% | Q4 2025 | Feb 17, 2026 |
| DRW Securities, LLC | History | New | 50,481 | 106 | 0.0% | — | 5 | +50,481 | New | Q4 2025 | Feb 12, 2026 |
| RENAISSANCE TECHNOLOGIES LLC | History | Reduced | 49,400 | 104 | 0.0% | 0.0% | 6 | -400 | -0.8% | Q4 2025 | Feb 12, 2026 |
| GEODE CAPITAL MANAGEMENT, LLC | History | No change | 32,665 | 68 | 0.0% | 0.0% | 7 | 0 | 0.0% | Q4 2025 | Feb 09, 2026 |
| JAMES INVESTMENT RESEARCH, INC. | History | No change | 29,725 | 62 | 0.01% | 0.01% | 8 | 0 | 0.0% | Q4 2025 | Jan 29, 2026 |
| NewEdge Advisors, LLC | History | No change | 29,725 | 62 | 0.0% | 0.0% | 9 | 0 | 0.0% | Q4 2025 | Feb 18, 2026 |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | History | New | 27,371 | 57 | 0.0% | — | 10 | +27,371 | New | Q4 2025 | Feb 17, 2026 |
| STATE STREET CORP | History | No change | 12,101 | 25 | 0.0% | 0.0% | 11 | 0 | 0.0% | Q4 2025 | Feb 13, 2026 |
| MORGAN STANLEY | History | Reduced | 6,308 | 13 | 0.0% | 0.0% | 12 | -502 | -7.37% | Q4 2025 | May 27, 2026 |
| Tower Research Capital LLC (TRC) | History | Added to | 1,938 | 4 | 0.0% | 0.0% | 13 | +283 | 17.1% | Q4 2025 | Feb 17, 2026 |
| National Philanthropic Trust | History | Closed out | 0 | 0 | — | 0.01% | — | -410,746 | -100.0% | Q4 2025 | May 15, 2026 |
| Empowered Funds, LLC | History | Closed out | 0 | 0 | — | 0.0% | — | -11,924 | -100.0% | Q4 2025 | Feb 18, 2026 |
| ACADIAN ASSET MANAGEMENT LLC | History | Closed out | 0 | 0 | — | 0.0% | — | -6,196 | -100.0% | Q4 2025 | Feb 10, 2026 |
| Farther Finance Advisors, LLC | History | Closed out | 0 | 0 | — | 0.0% | — | -502 | -100.0% | Q4 2025 | Jan 23, 2026 |
| OSAIC HOLDINGS, INC. | History | Closed out | 0 | 0 | — | — | — | -300 | -100.0% | Q4 2025 | Feb 17, 2026 |
| CITIGROUP INC | History | New | 142 | 0 | — | — | — | +142 | New | Q4 2025 | Feb 13, 2026 |
| ROYAL BANK OF CANADA | History | New | 61 | 0 | — | — | — | +61 | New | Q4 2025 | Feb 17, 2026 |
| UBS Group AG | History | Closed out | 0 | 0 | — | — | — | -50 | -100.0% | Q4 2025 | Jan 29, 2026 |
| BARCLAYS PLC | History | Closed out | 0 | 0 | — | — | — | -20 | -100.0% | Q4 2025 | Feb 13, 2026 |
| JPMORGAN CHASE & CO | History | Closed out | 0 | 0 | — | — | — | -7 | -100.0% | Q4 2025 | Feb 11, 2026 |
| BANK OF AMERICA CORP /DE/ | History | Reduced | 60 | 0 | — | — | — | -5 | -7.69% | Q4 2025 | Feb 17, 2026 |
| JONES FINANCIAL COMPANIES LLLP | History | No change | 100 | 0 | — | — | — | 0 | 0.0% | Q4 2025 | Feb 17, 2026 |