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.
Q3 2021 vs. Q2 2021
How the institutions holding American Shared Hospital Services changed between Q2 2021 and Q3 2021.
All holders in Q3 2021All holders in Q2 2021
| Measure | Q2 2021 | Q3 2021 | Change |
|---|---|---|---|
| Holders | 16 | 18 | +2 |
| Shares | 854.2K | 878.6K | +24.4K (+2.9%) |
| Value | $2.50M | $2.42M | −$78.7K (−3.1%) |
New holders (4)
Institutions that held American Shared Hospital Services at the end of Q3 2021 but not at the end of Q2 2021.
| Institution | Shares | Value | % of portfolio |
|---|---|---|---|
| Virtu Financial LLC | 32,955 | $91.0K | 0.01% |
| Two Sigma Advisers, LP | 29,400 | $81.0K | 0.00% |
| Two Sigma Investments, LP | 26,399 | $73.0K | 0.00% |
| Renaissance Technologies LLC | 11,500 | $32.0K | 0.00% |
Sold out (2)
Institutions that held American Shared Hospital Services at the end of Q2 2021 and filed for Q3 2021 without it.
| Institution | Shares, Q2 2021 | Value, Q2 2021 |
|---|---|---|
| Citadel Advisors LLC | 30,398 | $89.0K |
| Susquehanna Fundamental Investments, LLC | 10,600 | $31.0K |