American Shared Hospital SerAMS
13F holders, Q4 2025 (December 31)17holders −5
3new positions
8sold out
1famous investor
$2.11avg. 13F price*
At the end of Q4 2025, 17 institutions reported holding American Shared Hospital Ser (AMS) in their 13F filings, down 5 from Q3 2025. 3 opened new positions and 8 sold out. The largest holders were Dimensional Fund Advisors LP ($436K), Vanguard Group Inc. ($382K) and Corient Private Wealth LP ($339K). 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 Q3 2025 → Q4 2025
| Institutions | Total Value | |
|---|---|---|
| New Positions | 3 | $165K |
| Exits | 8 | $1.2M |
All 13F filers, Q3 2025 → Q4 2025: 78,326 shares bought and 436,768 shares sold, net −358,442 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 17 holders
| Dimensional Fund Advisors LP | 0.00% | Reduce -1.7% | 206,414 | $436K |
| Vanguard Group Inc. | 0.00% | No change | 181,143 | $382K |
| Corient Private Wealth LP | 0.00% | No change | 160,559 | $339K |
| Bridgeway Capital Management, LLC | 0.00% | Reduce -2.7% | 94,120 | $199K |
| DRW Securities, LLC | 0.01% | New | 50,481 | $107K |
| Renaissance Technologies | 0.00% | Reduce -0.8% | 49,400 | $104K |
| Geode Capital Management, LLC | 0.00% | No change | 32,665 | $69K |
| James Investment Research, Inc. | 0.01% | No change | 29,725 | $63K |
| NewEdge Advisors, LLC | 0.00% | No change | 29,725 | $63K |
| Susquehanna International Group, LLP | 0.00% | New | 27,371 | $58K |
| State Street Corp. | 0.00% | No change | 12,101 | $26K |
| Morgan Stanley | 0.00% | Reduce -7.4% | 6,308 | $13K |
| Tower Research Capital LLC (TRC) | 0.00% | Add +17.1% | 1,938 | $4K |
| Citigroup Inc. | 0.00% | New | 142 | $300 |
| Jones Financial Companies LLLP | 0.00% | No change | 100 | $211 |
| Bank of America Corp. | 0.00% | Reduce -7.7% | 60 | $126 |
| Royal Bank of Canada | 0.00% | Add +408.3% | 61 | $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.