CYTOSORBENTS CORP (CTSO): Ownership & Insider Activity

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

Reported Holders
2
13F filers
Aggregate Value
$38K
Across holders
Last Price
$3.73
2026-10-08
Sector
Health Care
GICS
Quarterly fund activity0 increased2 reduced1 exited
Full exits: CITADEL ADVISORS LLC
Institutional Holders of CTSO
↗
2 holders
Manager⇅Type⇅Shares⇅Market Value▼% of Total⇅% of Portfolio⇅Action⇅QoQ Change⇅Quarter⇅
RENAISSANCE TECHNOLOGIES LLC
CIK 0001037389
Hedge Fund100K$37K98.4%0.0%Reduced$-262Q2 2026
Rockefeller Capital Management L.P.
CIK 0001739439
Hedge Fund2K$6181.6%0.0%Reduced$-78Q2 2026
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