Cytosorbents Corp (CTSO)

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Sector: Surgical & Medical Instruments & Apparatus

Hedge Fund Popularity

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Hedge Fund Holdings

Filing Period:

Last updated on August 14, 2026, 5:15pm based on SEC 13F filings Last update: August 14, 2026, 5:15pm

No.	Hedge Fund	Shares	Value	Activity	% Port
1.	Skylands Capital Charles Paquelet	60,570	$453,064	-30%	0.06%
2.	Renaissance Technologies Jim Simons	5,001	$37,407	-1%	0%
3.	Citadel Investment GroupCALL Ken Griffin	720	$5,386		0%
4.	Citadel Investment Group Ken Griffin	0	$0		0%

Insider Trading: Purchases See All

Insider	Price	Amount	Total Value	Remaining Holdings	Date	Form 4
Mariani Officer	$0.44	100,000	$44,000.00	638,113	2026-06-15	Filing
Chan Officer, Director	$0.43	10,333	$4,443.19	1,744,432	2026-06-15	Filing
Chan Officer, Director	$0.40	251,136	$100,454.40	1,734,099	2026-06-12	Filing
Mariani Officer	$0.96	20,000	$19,294.00	401,363	2024-12-13	Filing
Mariani Officer	$0.89	20,000	$17,872.00	381,363	2024-12-12	Filing

Insider Trading: Sales See All

Insider	Price	Amount	Total Value	Remaining Holdings	Date	Form 4
Kraus Director	$9.40	4,000	$37,591.20	125,046	2021-08-31	Filing
Kraus Director	$8.00	8,000	$64,000.00	125,046	2020-11-10	Filing
Capponi Officer	$10.00	10,000	$100,000.00	417,649	2020-04-27	Filing
Capponi Officer	$6.00	4,677	$28,062.00	417,649	2020-03-10	Filing
Chan Officer, Director	$9.37	24,337	$228,025.52	503,281	2018-12-07	Filing

Institutional Investors' Holdings

Filing Period:

No.	Name	Shares	Value	% Port
1.	Avenir Corp	259,460.9	$1,940,768	0.24%
2.	Neuberger Berman Group Llc	98,434.55	$740,516	0%
3.	Vanguard Capital Management Llc	95,703.15	$715,860	0%
4.	Cm Management, Llc	73,825	$552,211	0.35%
5.	Blackrock, Inc.	31,360.55	$234,577	0%