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Cytosorbents Corp
CTSO

Overview Fund Activity

43 hedge funds and large institutions have $20.6M invested in Cytosorbents Corp in 2025 Q2 according to their latest regulatory filings, with 3 funds opening new positions, 8 increasing their positions, 18 reducing their positions, and 7 closing their positions.

New
Increased
Maintained
Reduced
Closed
Holders
43
Holders Change
-5
Holders Change %
-10.42%
% of All Funds
0.58%
Holding in Top 10
–
Holding in Top 10 Change
–
Holding in Top 10 Change %
–
% of All Funds
–
New
3
Increased
8
Reduced
18
Closed
7
Calls
$37K
Puts
–
Net Calls
+$37K
Net Calls Change
+$36K

Top Buyers

1
CM
CM Management
Florida
+$379K
2
Vanguard Group
Vanguard Group
Pennsylvania
+$224K
3
Susquehanna International Group
Susquehanna International Group
Pennsylvania
+$169K
4
BlackRock
BlackRock
New York
+$151K
5
AC
Avenir Corporation
Virginia
+$17.4K

Top Sellers

1
SC
Skylands Capital
Wisconsin
-$494K
2
GIM
Granahan Investment Management
Massachusetts
-$358K
3
Renaissance Technologies
Renaissance Technologies
New York
-$139K
4
Neuberger Berman Group
Neuberger Berman Group
New York
-$112K
5
SIG
Sargent Investment Group
Maryland
-$69.7K
Name Holding Trade Value Shares
Change 		Shares
Change %
SAM
26
Seelaus Asset Management
New Jersey
$23.4K – – –
SEI Investments
27
SEI Investments
Pennsylvania
$22.9K -$11K -8,613 -32%
MFG
28
Merit Financial Group
Georgia
$19.6K +$274 +214 +1%
CCB
29
Country Club Bank
Missouri
$18.7K – – –
Squarepoint
30
Squarepoint
New York
$15K -$36.9K -28,837 -71%
CPIG
31
Chicago Partners Investment Group
Illinois
$12.5K -$1.19K -1,162 -9%
Comerica Bank
32
Comerica Bank
Texas
$3.84K -$393 -307 -9%
NEWAS
33
N.E.W. Advisory Services
Wisconsin
$3.48K – – –
TRCT
34
Tower Research Capital (TRC)
New York
$1.97K -$5.08K -3,965 -72%
Royal Bank of Canada
35
Royal Bank of Canada
Ontario, Canada
$1K +$1K +800 New
Wells Fargo
36
Wells Fargo
California
$934 +$614 +480 +192%
JPMorgan Chase & Co
37
JPMorgan Chase & Co
New York
$476 -$145 -113 -23%
YAL
38
Your Advocates Ltd
Texas
$320 – – –
MCM
39
MAI Capital Management
Ohio
$299 – – –
SS
40
SBI Securities
Japan
$128 – – –
PNC Financial Services Group
41
PNC Financial Services Group
Pennsylvania
$40 – – –
BNP Paribas Financial Markets
42
BNP Paribas Financial Markets
France
$26 +$22 +17 +567%
GIM
43
Granahan Investment Management
Massachusetts
– -$358K -358,418 Closed
GCP
44
GSA Capital Partners
United Kingdom
– -$53K -53,030 Closed
XT
45
XTX Topco
Cayman Islands
– -$30.1K -30,113 Closed
TSS
46
Two Sigma Securities
New York
– -$15.3K -15,287 Closed
Citadel Advisors
47
Citadel Advisors
Florida
– -$8.18K -8,183 Closed
HCP
48
Hexagon Capital Partners
Arkansas
– -$3.33K -3,333 Closed
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