CTSO CytoSorbents Corporation

NASDAQ
$4.38

CytoSorbents Corporation (CTSO) Institutional Ownership

What the institutions did with CTSO last quarter, from their 13F filings. Counting managers rather than shares is the point: a single index fund adding to a position tells you far less than four hundred separate managers all deciding to. Positions as reported for the quarter ended June 30, 2026.

Managers compared
56
filed both this quarter and last
Managers holding
49
-1 on the quarter
Buyers
17
6 opened new
Sellers
20
7 sold out entirely
Buyer share
46.0%
of managers who traded it
Breadth
-8.1
net buyers, as a share of those trading

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Ownership map

Each block is one manager, sized by shares held and colored by how much they moved the position last quarter. Green added, red cut, grey stood pat.

Cut Unchanged Added Color saturates at ±50%.

Largest holders

Manager Shares % of reported
AVENIR CORP 5.2M 32.2%
NEUBERGER BERMAN GROUP LLC 2.0M 12.2%
VANGUARD CAPITAL MANAGEMENT LLC 1.9M 11.9%
CM Management, LLC 1.5M 9.1%
Skylands Capital, LLC 1.2M 7.5%
BlackRock, Inc. 627.2K 3.9%
GEODE CAPITAL MANAGEMENT, LLC 602.1K 3.7%
Sargent Investment Group, LLC 555.8K 3.4%
Pathstone Holdings, LLC 499.9K 3.1%
VANGUARD FIDUCIARY TRUST CO 316.2K 2.0%
CIBC Bancorp USA Inc. 172.6K 1.1%
STATE STREET CORP 159.3K 1.0%
OSAIC HOLDINGS, INC. 134.8K 0.8%
UBS Group AG 131.0K 0.8%
NORTHERN TRUST CORP 111.7K 0.7%
RAYMOND JAMES FINANCIAL INC 107.6K 0.7%
NWF Advisory Services Inc. 104.1K 0.6%
RENAISSANCE TECHNOLOGIES LLC 100.0K 0.6%
MORGAN STANLEY 91.3K 0.6%
Key Client Fiduciary Advisors, LLC 78.5K 0.5%
Virtu Financial LLC 71.5K 0.4%
XTX Topco Ltd 54.3K 0.3%
JANE STREET GROUP, LLC 52.2K 0.3%
LPL Financial LLC 50.1K 0.3%
STIFEL FINANCIAL CORP 48.0K 0.3%

Largest changes

Manager Action Previous Current Change
Skylands Capital, LLC Reduced 1.7M 1.2M -496.1K
NEUBERGER BERMAN GROUP LLC Increased 1.7M 2.0M +285.7K
BlackRock, Inc. Reduced 783.0K 627.2K -155.8K
GEODE CAPITAL MANAGEMENT, LLC Reduced 707.3K 602.1K -105.2K
Virtu Financial LLC New 0 71.5K +71.5K
Waverly Advisors, LLC Sold Out 55.6K 0 -55.6K
JANE STREET GROUP, LLC New 0 52.2K +52.2K
VANGUARD CAPITAL MANAGEMENT LLC Increased 1.9M 1.9M +34.1K
SUSQUEHANNA INTERNATIONAL GROUP, LLP Sold Out 29.9K 0 -29.9K
GOLDMAN SACHS GROUP INC Reduced 43.9K 15.3K -28.6K
LPL Financial LLC Increased 23.2K 50.1K +26.9K
AVENIR CORP Reduced 5.2M 5.2M -26.6K
SFMG, LLC New 0 20.0K +20.0K
NORTHERN TRUST CORP Increased 92.5K 111.7K +19.1K
XTX Topco Ltd Increased 35.6K 54.3K +18.7K
HRT FINANCIAL LP Increased 14.1K 32.1K +18.0K
UBS Group AG Increased 115.2K 131.0K +15.8K
NORTHWESTERN MUTUAL WEALTH MANAGEMENT CO New 0 11.2K +11.2K
Texas Capital Bank Wealth Management Services Inc Sold Out 11.0K 0 -11.0K
CITADEL ADVISORS LLC Sold Out 10.8K 0 -10.8K
Tower Research Capital LLC (TRC) New 0 10.2K +10.2K
MORGAN STANLEY Reduced 100.2K 91.3K -8.8K
Sargent Investment Group, LLC Increased 549.9K 555.8K +5.9K
OSAIC HOLDINGS, INC. Increased 130.4K 134.8K +4.4K
Creative Planning Reduced 21.3K 19.0K -2.3K
VANGUARD FIDUCIARY TRUST CO Increased 313.9K 316.2K +2.3K
RENAISSANCE TECHNOLOGIES LLC Reduced 100.7K 100.0K -700
BANK OF AMERICA CORP /DE/ Reduced 39.1K 38.7K -437
BARCLAYS PLC New 0 287 +287
Your Advocates Ltd., LLP Sold Out 250 0 -250
MAI Capital Management Sold Out 233 0 -233
Rockefeller Capital Management L.P. Reduced 1.9K 1.7K -209
RAYMOND JAMES FINANCIAL INC Reduced 107.8K 107.6K -140
JONES FINANCIAL COMPANIES LLLP Sold Out 93 0 -93
Pathstone Holdings, LLC Reduced 500.0K 499.9K -45
BNP PARIBAS FINANCIAL MARKETS Reduced 17 3 -14
FIFTH THIRD BANCORP Increased 3.1K 3.1K +8

13F filings are due 45 days after quarter end and cover long positions in U.S.-listed equities only, so this is a lagged and partial picture: shorts, bonds and foreign listings never appear. Options positions are excluded here rather than folded into the share counts. Political ownership is coming.