CYTOSORBENTS CORP (CTSO) is held by 37 institutional investors that disclose positions via SEC 13F filings. The largest disclosed holder is VANGUARD CAPITAL MANAGEMENT LLC as of Q1 2026.

Are institutions buying or selling CTSO?

In Q1 2026, 15 institutions opened or increased positions in CYTOSORBENTS CORP while 11 reduced or exited — a net buying quarter.

What is the Smart Money Verdict on CTSO?

The Smart Money Verdict combines four independent sources (institutional 13F activity, insider trades, activist filings, and congressional trades) into a single assessment for CYTOSORBENTS CORP.

How many hedge funds hold CTSO?

37 institutional investors report holding CYTOSORBENTS CORP (CTSO) as of Q1 2026, based on SEC 13F filings.

Is institutional money flowing into CTSO?

As of Q1 2026, tracked institutions in CYTOSORBENTS CORP show 15 buyers versus 11 sellers — net inflows.

CYTOSORBENTS CORP

CTSO·23283X206·US·Common Stock·Healthcare - Medical Devices-13D/G

Holders

Avg rating(12 Elite)

$4.1M

Total Value

58% (40)

Fund Consensus

15 buying - 11 selling

Smart Money Verdict

View all

Held by 37 funds

12 elite

Who's Trading

InsiderMJMARIANI PETER JBuy $44KJun 15, 2026

ActivistAVAVENIR CORP8.3%Feb 13, 2026

ActivistAVAvenue Venture Opportunities Fund, L.P.1.7%May 28, 2025

Activist

The Vanguard Group3.1%Apr 30, 2025

ActivistSKSkylands Capital, LLC4.8%Apr 17, 2025

View all insider trades View all activist filings

13F: Mar 31, 2026Insider & Congress: Updated regularly

Fund	Action	Shares	Value	Weight	Est. P&L	Conviction
VAVANGUARD CAPITAL MANAGEMENT LLC	New	1.9M	$1.1M	0.0%	-52.50%	38
Neuberger Berman Group LLC	Increased	1.7M(+3.5%)	$950,776	0.0%	-92.10%	26
BlackRock, Inc.	Increased	782,992(+1.6%)	$443,408	0.0%	-59.88%	17
GEODE CAPITAL MANAGEMENT, LLC	Increased	707,262(+17.1%)	$400,621	0.0%	-91.23%	19
Pathstone Holdings, LLC	Unchanged	499,955	$283,124	0.0%	-40.63%	0
VFVANGUARD FIDUCIARY TRUST CO	New	313,856	$177,642	0.0%	-52.50%	35
CIBC Bancorp USA Inc.	Unchanged	172,649	$97,771	0.0%	-59.14%	0
STATE STREET CORP	Unchanged	159,293	$90,208	0.0%	-64.98%	0
OSAIC HOLDINGS, INC.	Unchanged	130,419	$74,245	0.0%	-87.81%	0
UBS Group AG	Decreased	115,200(-0.1%)	$65,203	0.0%	-58.68%	0
RAYMOND JAMES FINANCIAL INC	Decreased	107,751(-0.9%)	$61,020	0.0%	-57.85%	0
RENAISSANCE TECHNOLOGIES LLC	Increased	100,720(+0.6%)	$57,038	0.0%	-69.83%	21
MORGAN STANLEY	Decreased	100,169(-14.0%)	$56,726	0.0%	-45.63%	0
NORTHERN TRUST CORP	Unchanged	92,540	$52,406	0.0%	-93.87%	0
WAWaverly Advisors, LLC	Unchanged	55,556	$31,461	0.0%	-59.14%	0
STIFEL FINANCIAL CORP	Unchanged	48,000	$27,183	0.0%	-65.36%	0
GOLDMAN SACHS GROUP INC	Increased	43,947(+22.2%)	$24,887	0.0%	-58.93%	16
BANK OF AMERICA CORP /DE/	Increased	39,123(+1.1%)	$22,143	0.0%	-58.71%	13
XTX Topco Ltd	Increased	35,570(+19.8%)	$20,143	0.0%	-42.99%	22
SUSQUEHANNA INTERNATIONAL GROUP, LLP	Decreased	29,945(-64.1%)	$16,958	0.0%	-69.11%	0