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, Q2 2026
Institutional positions in American Shared Hospital Services as of Jun 30, 2026. 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
- 19
- −1 vs. Q1 2026
- Shares held
- 505.5K
- −486.6K (−49.0%) vs. Q1 2026
- Total value
- $798.6K
- −$639.8K (−44.5%) vs. Q1 2026
- New holders
- 4
- 3 more added
- Sold out
- 5
- 5 more reduced
Compare with Q1 2026: 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 | $2.20M |
| 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 | $3.19M |
| Q4 2023 | 18 | $2.52M |
| 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, Q2 2026
Shares, value and share of portfolio for each institution holding American Shared Hospital Services; share changes are against Q1 2026.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Dimensional Fund Advisors LP | 102,140 | $161.4K | 0.00% | −102,980−50.2% | Reduced |
| LPL Financial LLC | 81,386 | $128.6K | 0.00% | +5,020+6.6% | Added |
| Renaissance Technologies LLC | 57,695 | $91.2K | 0.00% | +8,495+17.3% | Added |
| Vanguard Capital Management LLC | 55,662 | $87.9K | 0.00% | −98,075−63.8% | Reduced |
| James Investment Research Inc | 29,725 | $47.0K | 0.00% | 00.0% | Unchanged |
| GWM Advisors LLC | 29,725 | $47.0K | 0.00% | 00.0% | Unchanged |
| Bridgeway Capital Management, LLC | 29,124 | $46.0K | 0.00% | −61,696−67.9% | Reduced |
| Geode Capital Management, LLC | 26,497 | $41.9K | 0.00% | −6,091−18.7% | Reduced |
| Vanguard Fiduciary Trust Co | 25,363 | $40.1K | 0.00% | −2,043−7.5% | Reduced |
| XTX Topco Ltd | 19,107 | $30.2K | 0.00% | +19,107 | New |
| UBS Group AG | 18,395 | $29.1K | 0.00% | +18,195+9,097.5% | Added |
| State Street Corp | 12,101 | $19.1K | 0.00% | 00.0% | Unchanged |
| Empowered Funds, LLC | 11,924 | $18.8K | 0.00% | 00.0% | Unchanged |
| Morgan Stanley | 5,858 | $9.26K | 0.00% | 00.0% | Unchanged |
| Citigroup Inc | 454 | $717 | 0.00% | +454 | New |
| Caitong International Asset Management Co., Ltd | 107 | $169 | 0.00% | +107 | New |
| Jones Financial Companies LLLP | 100 | $161 | 0.00% | 00.0% | Unchanged |
| Barclays PLC | 82 | $130 | 0.00% | +82 | New |
| Royal Bank of Canada | 69 | $0 | 0.00% | 00.0% | Unchanged |
| CI Private Wealth, LLC | 0 | $0 | 0.00% | −160,559−100.0% | Sold out |
| Susquehanna International Group, LLP | 0 | $0 | 0.00% | −42,314−100.0% | Sold out |
| DRW Securities, LLC | 0 | $0 | 0.00% | −32,889−100.0% | Sold out |
| Citadel Advisors LLC | 0 | $0 | 0.00% | −28,558−100.0% | Sold out |
| Tower Research Capital LLC (TRC) | 0 | $0 | 0.00% | −2,814−100.0% | Sold out |