AMERICAN SHARED HOSPITAL SERVICES (AMS) — Institutional Holders, Q2 2026
20 institutional investment managers reported a AMS position on SEC Form 13F-HR for the quarter ended June 30, 2026, with a combined reported value of $798.6K. Every filer is listed below, ranked by position value. Put and call option positions are excluded, and a firm filing several lots or share classes is shown once with its total.
AMS in Q2 2026: what funds did
Funds that filed a 13F for both Q1 2026 and Q2 2026, by what they did with the common stock. Share counts are adjusted for any split between the two quarters; dollar figures are the change in shares at this quarter’s price.
Biggest buyers
- XTX Topco LtdNew · +19,107 sh+$30.2K
- UBS Group AGAdded · +18,195 sh+$28.7K
- RENAISSANCE TECHNOLOGIESAdded · +8,495 sh+$13.4K
- LPL FinancialAdded · +5,020 sh+$7.9K
- CITIGROUPNew · +454 sh+$717.00
Biggest sellers
- Corient Private WealthSold out · -160,559 sh-$253.7K
- DIMENSIONAL FUND ADVISORSTrimmed · -102,980 sh-$162.7K
- VANGUARD CAPITAL MANAGEMENTTrimmed · -98,075 sh-$155.0K
- BRIDGEWAY CAPITAL MANAGEMENTTrimmed · -61,696 sh-$97.5K
- SUSQUEHANNA INTERNATIONAL GROUP, LLPSold out · -42,314 sh-$66.9K
AMS 13F holders ranked 1–20 of 20
| # | Institution | Shares | Value | % of portfolio | QoQShares vs Q1 2026 |
|---|---|---|---|---|---|
| 1 | DIMENSIONAL FUND ADVISORS#1 · 102,140 sh | 102,140 | $161.4K | 0.00% | -50.2% |
| 2 | LPL Financial#2 · 81,386 sh | 81,386 | $128.6K | 0.00% | +6.6% |
| 3 | RENAISSANCE TECHNOLOGIES#3 · 57,695 sh | 57,695 | $91.2K | <0.01% | +17.3% |
| 4 | VANGUARD CAPITAL MANAGEMENT#4 · 55,662 sh | 55,662 | $87.9K | 0.00% | -63.8% |
| 5 | NewEdge Advisors#5 · 29,725 sh | 29,725 | $47.0K | <0.01% | 0.0% |
| 6 | JAMES INVESTMENT RESEARCH#6 · 29,725 sh | 29,725 | $47.0K | — | 0.0% |
| 7 | BRIDGEWAY CAPITAL MANAGEMENT#7 · 29,124 sh | 29,124 | $46.0K | <0.01% | -67.9% |
| 8 | GEODE CAPITAL MANAGEMENT#8 · 26,497 sh | 26,497 | $41.9K | 0.00% | -18.7% |
| 9 | VANGUARD FIDUCIARY#9 · 25,363 sh | 25,363 | $40.1K | 0.00% | -7.5% |
| 10 | XTX Topco Ltd#10 · 19,107 sh | 19,107 | $30.2K | <0.01% | New |
| 11 | UBS Group AG#11 · 18,395 sh | 18,395 | $29.1K | 0.00% | +9097.5% |
| 12 | STATE STREET#12 · 12,101 sh | 12,101 | $19.1K | 0.00% | 0.0% |
| 13 | Empowered Funds#13 · 11,924 sh | 11,924 | $18.8K | <0.01% | 0.0% |
| 14 | MORGAN STANLEY#14 · 5,858 sh | 5,858 | $9.3K | 0.00% | 0.0% |
| 15 | CITIGROUP#15 · 454 sh | 454 | $717.00 | 0.00% | New |
| 16 | Caitong International Asset Management , Ltd#16 · 107 sh | 107 | $169.00 | 0.00% | New |
| 17 | JONES FINANCIAL COMPANIES LLLP#17 · 100 sh | 100 | $161.00 | 0.00% | 0.0% |
| 18 | BARCLAYS PLC#18 · 82 sh | 82 | $130.00 | 0.00% | New |
| 19 | ROYAL BANK OF CANADA#19 · 69 sh | 69 | $0.00 | 0.00% | 0.0% |
| 20 | WELLS FARGO & COMPANY#20 · 0 sh | 0 | $0.00 | 0.00% | New |
Funds that sold out of AMS in Q2 2026 (5)
Held AMS at the end of Q1 2026 and filed a Q2 2026 13F without it. Not in the list above, because they no longer hold it. Largest prior position first.
| Institution | Shares sold | Value in Q1 2026 |
|---|---|---|
| Corient Private Wealth160,559 sh | 160,559 | $232.8K |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP42,314 sh | 42,314 | $61.4K |
| DRW Securities32,889 sh | 32,889 | $47.7K |
| CITADEL ADVISORS28,558 sh | 28,558 | $41.4K |
| Tower Research Capital (TRC)2,814 sh | 2,814 | $4.1K |
Source: Form 13F-HR filings on SEC EDGAR, Q2 2026. Values are as reported by each manager at quarter end. “% of portfolio” is the position’s share of the manager’s total reported 13F value for the same quarter. “New” means the manager filed a 13F for Q1 2026 without this position; a dash means no comparison is available. Where a manager’s own filing is internally inconsistent its value is withheld and it is listed last. 13F data shows reported holdings, not recommendations.