AMERICAN SHARED HOSPITAL SER (AMS) Institutional Ownership Changes & 13F Activity
AMERICAN SHARED HOSPITAL SER (AMS). Institutional ownership data tracks hedge funds, asset managers, and other institutional investors based on recent SEC Form 13F filings (Q4 2025). This page analyzes institutional buying and selling activity, new holdings, and sold-out positions in the latest reporting period. Notable filers include National Philanthropic Trust, Dimensional Fund Advisors Lp, Corient Private Wealth Llc, Bridgeway Capital Management, Llc, and Drw Securities, Llc.
| Institution | Type | Change in shares | Change Position % | Shares | Reported stock balance | Portfolio quarter | Filing date |
|---|---|---|---|---|---|---|---|
| National Philanthropic Trust | Sell | -410,746 | -100.0% | 0 | $0.00 | Q4 2025 | May 15, 2026 |
| Corient Private Wealth Llc | Buy | +160,559 | — | 160,559 | $338.78K | Q4 2025 | Feb 19, 2026 |
| Newedge Advisors, Llc | Buy | +29,725 | — | 29,725 | $62.72K | Q4 2025 | Feb 18, 2026 |
| Bridgeway Capital Management, Llc | Buy | +94,120 | — | 94,120 | $198.59K | Q4 2025 | Feb 17, 2026 |
| Susquehanna International Group, Llp | Buy | +27,371 | — | 27,371 | $57.75K | Q4 2025 | Feb 17, 2026 |
| Tower Research Capital Llc (Trc) | Buy | +1,938 | — | 1,938 | $4.09K | Q4 2025 | Feb 17, 2026 |
| Jones Financial Companies Lllp | Buy | +100 | — | 100 | $211.00 | Q4 2025 | Feb 17, 2026 |
| Royal Bank Of Canada | Buy | +61 | — | 61 | $0.00 | Q4 2025 | Feb 17, 2026 |
| Bank Of America Corp | Buy | +60 | — | 60 | $126.00 | Q4 2025 | Feb 17, 2026 |
| State Street Corp | Buy | +12,101 | — | 12,101 | $25.53K | Q4 2025 | Feb 13, 2026 |
| Morgan Stanley | Buy | +6,308 | — | 6,308 | $13.31K | Q4 2025 | Feb 13, 2026 |
| Citigroup Inc | Buy | +142 | — | 142 | $300.00 | Q4 2025 | Feb 13, 2026 |
| Dimensional Fund Advisors Lp | Buy | +206,414 | — | 206,414 | $435.53K | Q4 2025 | Feb 12, 2026 |
| Drw Securities, Llc | Buy | +50,481 | — | 50,481 | $106.51K | Q4 2025 | Feb 12, 2026 |
| Renaissance Technologies LLC | Sell | -400 | -0.8% | 49,400 | $104.23K | Q4 2025 | Feb 12, 2026 |
| Empowered Funds, Llc | Buy | +11,924 | — | 11,924 | $25.16K | Q4 2025 | Feb 11, 2026 |
| Geode Capital Management, Llc | Buy | +32,665 | — | 32,665 | $68.95K | Q4 2025 | Feb 09, 2026 |
| James Investment Research, Inc. | Buy | +29,725 | — | 29,725 | $62.72K | Q4 2025 | Jan 29, 2026 |
Frequently asked questions about AMS activity
Which institutional owners are buying AMS?
Institutional owners buying AMS include investors who have either initiated new positions or increased their existing holdings based on recent SEC 13F filings. The activity table above highlights which funds added shares in the latest reporting periods and how their positions changed over time.
What does "buy" mean in AMS activity?
"Buy" means an investor increased their reported position in AMS compared to the prior reporting period. This reflects growing exposure to AMERICAN SHARED HOSPITAL SER (AMS) rather than necessarily a brand-new position (though new positions also appear as buys when prior quantity was zero).
Is institutional interest in AMS increasing?
Institutional interest in AMS can be assessed by comparing the number of tracked funds adding or increasing positions versus those trimming or exiting across the periods shown. A higher number of additions typically signals increasing participation among large filers, but it should be read alongside position sizes and the full table.
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