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Cytosorbents Corp
CTSO

51 hedge funds and large institutions have $10.8M invested in Cytosorbents Corp in 2025 Q4 according to their latest regulatory filings, with 9 funds opening new positions, 14 increasing their positions, 10 reducing their positions, and 6 closing their positions.

New
Increased
Maintained
Reduced
Closed

50% more first-time investments, than exits

New positions opened: 9 | Existing positions closed: 6

40% more repeat investments, than reductions

Existing positions increased: 14 | Existing positions reduced: 10

4% more funds holding

Funds holding: 49 → 51 (+2)

0.82% more ownership

Funds ownership: 26.03% → 26.85% (+0.82%)

29% less capital invested

Capital invested by funds: $15.3M → $10.8M (-$4.48M)

Holders
51
Holders Change
+2
Holders Change %
+4.08%
% of All Funds
0.62%
Holding in Top 10
–
Holding in Top 10 Change
–
Holding in Top 10 Change %
–
% of All Funds
–
New
9
Increased
14
Reduced
10
Closed
6
Calls
–
Puts
–
Net Calls
–
Net Calls Change
–

Top Buyers

Rank Fund Capital Flow
1
Pathstone Holdings
Pathstone Holdings
New Jersey
+$385K
2
CM
CM Management
Florida
+$145K
3
AC
Avenir Corporation
Virginia
+$113K
4
Citadel Advisors
Citadel Advisors
Florida
+$64.3K
5
GCP
GSA Capital Partners
United Kingdom
+$27.8K

Top Sellers

Rank Fund Capital Flow
1
SC
Skylands Capital
Wisconsin
-$210K
2
SIG
Sargent Investment Group
Maryland
-$97.5K
3
KAS
Kestra Advisory Services
Texas
-$29.9K
4
Renaissance Technologies
Renaissance Technologies
New York
-$26.7K
5
Goldman Sachs
Goldman Sachs
New York
-$18.9K
Name Holding Trade Value Shares
Change 		Change in
Stake
Goldman Sachs
26
Goldman Sachs
New York
$23K -$18.9K -24,600 -41%
XT
27
XTX Topco
Cayman Islands
$19K +$22.8K +29,682 New
EWA
28
EP Wealth Advisors
California
$17.9K +$21.5K +28,000 New
AFG
29
Atomi Financial Group
New York
$17.5K – – –
KAS
30
Kestra Advisory Services
Texas
$16.4K -$29.9K -38,828 -60%
LPL Financial
31
LPL Financial
California
$14.7K +$6.28K +8,160 +55%
Creative Planning
32
Creative Planning
Kansas
$13.6K -$123 -160 -0.7%
SAM
33
Seelaus Asset Management
New Jersey
$11.1K – – –
MFG
34
Merit Financial Group
Georgia
$9.78K – – –
FNBOO
35
First National Bank of Omaha
Nebraska
$9.78K +$11.7K +15,225 New
TCBWMS
36
Texas Capital Bank Wealth Management Services
Texas
$7.03K +$8.46K +11,000 New
VF
37
Virtu Financial
New York
$7K +$8.29K +10,780 New
Millennium Management
38
Millennium Management
New York
$6.52K +$7.85K +10,205 New
Comerica Bank
39
Comerica Bank
Texas
$2.8K +$630 +819 +23%
Rockefeller Capital Management
40
Rockefeller Capital Management
New York
$1.64K +$1.21K +1,566 +157%
GRP
41
Global Retirement Partners
California
$1.45K +$1.74K +2,265 New
TRCT
42
Tower Research Capital (TRC)
New York
$1.39K -$2.64K -3,437 -61%
Wells Fargo
43
Wells Fargo
California
$467 – – –
Fidelity Investments
44
Fidelity Investments
Massachusetts
$245 +$295 +384 New
JP Morgan Chase
45
JP Morgan Chase
New York
$238 – – –
YAL
46
Your Advocates Ltd
Texas
$160 – – –
MCM
47
MAI Capital Management
Ohio
$149 – – –
Jones Financial Companies
48
Jones Financial Companies
Missouri
$59 -$385 -500 -84%
MWA
49
Medallion Wealth Advisors
Connecticut
$29 – – –
PNC Financial Services Group
50
PNC Financial Services Group
Pennsylvania
$20 – – –
1
2
3

CTSO Hedge Fund Activity: Q4 2025 in Review

51 of the 8,245 institutional investors tracked by Wall St. Rank reported a position in Cytosorbents Corp (CTSO) for Q4 2025, worth a combined $10.8M — down 29% from $15.3M a quarter earlier.

Buyers outnumbered sellers: 9 funds opened new CTSO positions and 6 closed out — a net gain of 3 holders — while 14 added to existing stakes and 10 trimmed.

The largest buyer was Pathstone Holdings, opening a new position worth an estimated $385K. The largest seller was Skylands Capital, cutting an estimated $210K.

  • 51 institutional investors held Cytosorbents Corp (CTSO) as of Q4 2025, up from 49 in Q3 2025.
  • Funds reported $10.8M of Cytosorbents Corp stock for Q4 2025, down 29% quarter-over-quarter.
  • 9 funds opened new Cytosorbents Corp positions in Q4 2025 and 6 closed out, a net change of +3 holders.
  • The largest Cytosorbents Corp buyer in Q4 2025 was Pathstone Holdings, an estimated $385K added.
  • The largest Cytosorbents Corp seller in Q4 2025 was Skylands Capital, an estimated $210K sold.

Based on aggregated 13F filings for Q4 2025.