American Shared Hospital SerAMS
13F holders, Q3 2025 (September 30)22holders +4
6new positions
1sold out
1famous investor
$2.80avg. 13F price*
At the end of Q3 2025, 22 institutions reported holding American Shared Hospital Ser (AMS) in their 13F filings, up 4 from Q2 2025. 6 opened new positions and 1 sold out. The largest holders were National Philanthropic Trust ($1.2M), Dimensional Fund Advisors LP ($588K) and Vanguard Group Inc. ($507K). One famous investor held it Jim Simons / Peter Brown (0.0% of Renaissance Technologies's portfolio).
- Company
- American Shared Hospital Ser
- CUSIP
- 029595105
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q2 2025 → Q3 2025
| Institutions | Total Value | |
|---|---|---|
| New Positions | 6 | $1.2M |
| Exits | 1 | $9K |
All 13F filers, Q2 2025 → Q3 2025: 411,884 shares bought and 23,086 shares sold, net +388,798 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 22 holders
| National Philanthropic Trust | 0.01% | New | 410,746 | $1.2M |
| Dimensional Fund Advisors LP | 0.00% | No change | 209,959 | $588K |
| Vanguard Group Inc. | 0.00% | Reduce -0.1% | 181,143 | $507K |
| Corient Private Wealth LP | 0.00% | No change | 160,559 | $450K |
| Bridgeway Capital Management, LLC | 0.01% | No change | 96,691 | $271K |
| Renaissance Technologies | 0.00% | Reduce -25.3% | 49,800 | $139K |
| Geode Capital Management, LLC | 0.00% | Reduce -1.3% | 32,665 | $92K |
| James Investment Research, Inc. | 0.01% | No change | 29,725 | $83K |
| NewEdge Advisors, LLC | 0.00% | No change | 29,725 | $83K |
| State Street Corp. | 0.00% | No change | 12,101 | $34K |
| Empowered Funds, LLC | 0.00% | No change | 11,924 | $33K |
| Morgan Stanley | 0.00% | Add +7.1% | 6,810 | $19K |
| Acadian Asset Management LLC | 0.00% | Reduce -16.2% | 6,196 | $17K |
| Tower Research Capital LLC (TRC) | 0.00% | Reduce -0.4% | 1,655 | $5K |
| Farther Finance Advisors, LLC | 0.00% | New | 502 | $1K |
| Osaic Holdings, Inc. | 0.00% | No change | 300 | $840 |
| Jones Financial Companies LLLP | 0.00% | New | 100 | $290 |
| Bank of America Corp. | 0.00% | Reduce -9.7% | 65 | $182 |
| UBS Group AG | 0.00% | New | 50 | $140 |
| Barclays PLC | 0.00% | New | 20 | $56 |
| JPMorgan Chase & Co. | 0.00% | No change | 7 | $20 |
| Royal Bank of Canada | 0.00% | New | 12 | $0 |
"% of holder's portfolio" is AMS's weight in each manager's 13F, not the share of American Shared Hospital Ser the manager owns.