American Shared Hospital Services
AMS- Exchange
- NYSE
- Industry
- Services-Medical Laboratories
- SEC CIK
- 0000744825
No open-market purchases or sales by American Shared Hospital Services insiders were filed in the last 90 days; 19 institutions reported holding it in 13F filings for Q2 2026, worth $798.6K in total; no superinvestor holds it.
13F holders, Q4 2025
Institutional positions in American Shared Hospital Services as of Dec 31, 2025. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works
- Institutional holders
- 18
- −5 vs. Q3 2025
- Shares held
- 882.3K
- −358.4K (−28.9%) vs. Q3 2025
- Total value
- $1.86M
- −$1.61M (−46.4%) vs. Q3 2025
- New holders
- 3
- 2 more added
- Sold out
- 8
- 5 more reduced
Compare with Q3 2025: new holders, sold out and not filed yet
Holders and value by quarter
Institutions reporting AMS on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.
| Quarter | Holders | Value |
|---|---|---|
| Q2 2026 | 19 | $798.6K |
| Q1 2026 | 20 | $1.44M |
| Q4 2025 | 18 | $1.86M |
| Q3 2025 | 23 | $3.47M |
| Q2 2025 | 18 | $2.05M |
| Q1 2025 | 18 | $2.49M |
| Q4 2024 | 17 | $3.39M |
| Q3 2024 | 18 | $3.29M |
| Q2 2024 | 19 | $3.47M |
| Q1 2024 | 19 | $3.12M |
| Q4 2023 | 18 | $2.50M |
| Q3 2023 | 21 | $2.70M |
| Q2 2023 | 18 | $2.79M |
| Q1 2023 | 20 | $3.09M |
| Q4 2022 | 18 | $3.06M |
| Q3 2022 | 16 | $2.20M |
| Q2 2022 | 16 | $1.80M |
| Q1 2022 | 16 | $1.83M |
| Q4 2021 | 18 | $1.91M |
| Q3 2021 | 18 | $2.42M |
| Q2 2021 | 16 | $2.50M |
| Q1 2021 | 18 | $1.86M |
Institutions, Q4 2025
Shares, value and share of portfolio for each institution holding American Shared Hospital Services; share changes are against Q3 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Dimensional Fund Advisors LP | 206,414 | $435.5K | 0.00% | −3,545−1.7% | Reduced |
| Vanguard Group Inc | 181,143 | $382.2K | 0.00% | 00.0% | Unchanged |
| CI Private Wealth, LLC | 160,559 | $338.8K | 0.00% | 00.0% | Unchanged |
| Bridgeway Capital Management, LLC | 94,120 | $198.6K | 0.00% | −2,571−2.7% | Reduced |
| DRW Securities, LLC | 50,481 | $106.5K | 0.01% | +50,481 | New |
| Renaissance Technologies LLC | 49,400 | $104.2K | 0.00% | −400−0.8% | Reduced |
| Geode Capital Management, LLC | 32,665 | $69.0K | 0.00% | 00.0% | Unchanged |
| James Investment Research Inc | 29,725 | $62.7K | 0.01% | 00.0% | Unchanged |
| GWM Advisors LLC | 29,725 | $62.7K | 0.00% | 00.0% | Unchanged |
| Susquehanna International Group, LLP | 27,371 | $57.8K | 0.00% | +27,371 | New |
| State Street Corp | 12,101 | $25.5K | 0.00% | 00.0% | Unchanged |
| Morgan Stanley | 6,308 | $13.3K | 0.00% | −502−7.4% | Reduced |
| Tower Research Capital LLC (TRC) | 1,938 | $4.09K | 0.00% | +283+17.1% | Added |
| Citigroup Inc | 142 | $300 | 0.00% | +142 | New |
| Jones Financial Companies LLLP | 100 | $211 | 0.00% | 00.0% | Unchanged |
| Bank of America Corp | 60 | $126 | 0.00% | −5−7.7% | Reduced |
| Wells Fargo & Company | 0 | $1 | 0.00% | 0 | Unchanged |
| Royal Bank of Canada | 61 | $0 | 0.00% | +49+408.3% | Added |
| National Philanthropic Trust | 0 | $0 | 0.00% | −410,746−100.0% | Sold out |
| Empowered Funds, LLC | 0 | $0 | 0.00% | −11,924−100.0% | Sold out |
| Acadian Asset Management LLC | 0 | $0 | 0.00% | −6,196−100.0% | Sold out |
| Farther Finance Advisors, LLC | 0 | $0 | 0.00% | −502−100.0% | Sold out |
| Advisor Group Holdings, Inc. | 0 | $0 | 0.00% | −300−100.0% | Sold out |
| UBS Group AG | 0 | $0 | 0.00% | −50−100.0% | Sold out |
| Barclays PLC | 0 | $0 | 0.00% | −20−100.0% | Sold out |
| JPMorgan Chase & Co | 0 | $0 | 0.00% | −7−100.0% | Sold out |