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CytoSorbents
CTSO
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Overview
Overview
News
News
Posts
Posts
Financials
Financials
Forecast
Forecast
Valuation
Valuation
Shareholders
Shareholders
Profile
Profile
All Shareholders
Institutional Holders
Insiders
All Shareholders
Shareholder Type
Public and others
59.71%
Institutions
25.62%
Individuals & Insiders
14.67%
Major Shareholders
Latest
Major Shareholders Latest
Shareholder
% Held
Shares Held
Change %
Shares Changed
Report Date
Avenir Corporation
8.23%
259.46K
0.08%
-1.33K
06/30/2026
Mary Ley
7.27%
229.13K
0.87%
+28.31K
06/01/2026
Vanguard Capital Management, LLC
3.54%
111.51K
0.04%
+1.82K
06/30/2026
Neuberger Berman Investment Advisers LLC
3.12%
98.43K
0.44%
+14.28K
06/30/2026
Thomas Satterfield
2.86%
90.25K
0.01%
+0
01/13/2025
Phillip Chan
CEO & Director
2.66%
83.78K
0.39%
+12.64K
09/15/2026
CM Management, LLC
2.34%
73.83K
0.01%
+0
06/30/2026
Skylands Capital, LLC
1.92%
60.57K
0.80%
-24.80K
06/30/2026
BlackRock, Inc.
1.00%
31.36K
0.25%
-7.79K
06/30/2026
Geode Capital Management, LLC
0.96%
30.10K
0.17%
-5.26K
06/30/2026
Sargent Investment Group, LLC
0.88%
27.79K
<0.01%
+292.00
06/30/2026
Vincent Capponi
President & COO
0.82%
25.74K
0.13%
+4.25K
09/14/2026
Pathstone Family Office, LLC
0.79%
25.00K
<0.01%
-2.00
06/30/2026
Peter Mariani
Chief Financial Officer
0.34%
10.83K
0.16%
+5.00K
06/15/2026
Efthymios Deliargyris
Chief Medical Officer
0.31%
9.88K
<0.01%
+0
06/01/2026
CIBC Private Wealth Advisors, Inc.
0.27%
8.63K
<0.01%
+0
06/30/2026
State Street Investment Management
0.25%
7.96K
<0.01%
+0
06/30/2026
UBS Asset Management AG
0.21%
6.55K
0.02%
+790.00
06/30/2026
Alan Sobel
Independent Director
0.20%
6.42K
0.08%
+2.50K
09/15/2026
Northern Trust Global Investments
0.18%
5.58K
0.03%
+956.00
06/30/2026