American Shared Hospital Services (AMS) ownership: TIGH II, LLC 35% · institutions 15% (13F 2026-03-31). Insider activity, 90 days: Insiders bought (0 sales, 1 open-market buys). SEC EDGAR first-party data.
| Holder | Shares | Market Value | % Outstanding | Reported |
|---|---|---|---|---|
| Dimensional Fund Advisors | 205120.00 | $297424.00 | 3.1% | 2026-03-31 |
| Vanguard | 181143.00 | $262658.00 | 2.7% | 2026-03-31 |
| Corient Private Wealth LLC | 160559.00 | $232811.00 | 2.4% | 2026-03-31 |
| Bridgeway Capital Management, LLC | 90820.00 | $131689.00 | 1.4% | 2026-03-31 |
| LPL Financial | 76366.00 | $110731.00 | 1.2% | 2026-03-31 |
| Renaissance Technologies | 49200.00 | $71340.00 | 0.7% | 2026-03-31 |
| Susquehanna | 42314.00 | $61355.00 | 0.6% | 2026-03-31 |
| Geode Capital Management | 32588.00 | $47273.00 | 0.5% | 2026-03-31 |
| Insider | Transaction | Value | Date |
|---|---|---|---|
| Sell | null | 2026-07-22 | |
| Buy | null | 2026-06-22 | |
| Sell | null | 2026-03-26 | |
| Sell | null | 2026-03-26 | |
| Sell | null | 2025-06-26 | |
| Sell | null | 2025-04-30 | |
| Sell | null | 2024-12-19 | |
| Sell | null | 2024-10-14 |
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Institutional data from SEC Form 13F. Insider data from SEC Form 4. Congressional data from STOCK Act disclosures. Not personalized investment advice.