AMERICAN SHARED HOSPITAL SVC (AMS): Institutional Ownership

Hedge funds and institutional managers reporting a position in AMS · Health Care. Based on the most recent 13F filing from each holder, sourced from SEC EDGAR.

Reported Holders
3
13F filers
Aggregate Value
$145K
Across holders
Last Price
$1.61
2026-06-26
Sector
Health Care
GICS
Holder activity2 new0 added1 reduced
Institutional Holders of AMS
3 holders
ManagerTypeSharesMarket Value% of Total% of PortfolioActionQoQ ChangeQuarter
RENAISSANCE TECHNOLOGIES LLC
CIK 0001037389
Hedge Fund49K$71K49.3%0.0%Reduced$-290Q1 2026
CITADEL ADVISORS LLC
CIK 0001423053
Hedge Fund29K$41K28.6%0.0%NewQ1 2026
TWO SIGMA INVESTMENTS, LP
CIK 0001179392
Hedge Fund11K$32K22.1%0.0%NewQ3 2024