CTSO · Cytosorbents Corp

$0.34 0.00 (-0.21%)

Market Cap

$21.61M

62.84M

Institutional ownership from SEC Form 13F filings. Investment managers with more than $100 million in U.S. equities must disclose their positions every quarter, within 45 days of quarter-end, so the holdings shown can lag the market by up to a quarter.

Quarter:

Holders: 52

Total Value: $6,040,935

Total Shares: 16,152,312

Institutional Ownership Trend

26 quarters

Holder Concentration

Across 52 13F filers · Δ vs Mar 31, 2026

Top Holder

32.1%

+0.4 pts

Top 5

72.8%

+0.1 pts

Top 10

88.9%

−1.1 pts

HHI

1,522

Moderately concentrated+23

Quarterly Activity

vs Mar 31, 2026

New

Increased

Decreased

Sold Out

Unchanged

Holder count: +2

Institutional value: -35.1%

Shares held: -1.9%

Top Buyers

vs Mar 31, 2026

Institution	Added	Now Holds
Mega NEUBERGER BERMAN GROUP LLC	+285,684	1,968,691
Mega VANGUARD CAPITAL MANAGEMENT LLC	+34,074	1,914,063
Mega LPL Financial LLC	+26,934	50,119
Mega NORTHERN TRUST CORP	+19,120	111,660
Mid XTX Topco Ltd	+18,746	54,316

Top Sellers

vs Mar 31, 2026

Institution	Sold	Now Holds
Small Skylands Capital, LLC	−496,098	1,211,400
Mega BlackRock, Inc.	−155,781	627,211
Mega GEODE CAPITAL MANAGEMENT, LLC	−105,203	602,059
Mega GOLDMAN SACHS GROUP INC	−28,609	15,338
Small AVENIR CORP	−26,558	5,189,218

Top New Positions

vs Mar 31, 2026

Institution	Acquired	Value (USD)
Mid Virtu Financial LLC	71,508	$26,743
Mega JANE STREET GROUP, LLC	52,205	$19,524
Small SFMG, LLC	20,000	$7,480
Large NORTHWESTERN MUTUAL WEALTH MANAGEMENT CO	11,176	$4,179
Mid Tower Research Capital LLC (TRC)	10,223	$3,823

Top Sold-Out Positions

vs Mar 31, 2026

Institution	Previously Held	Last Value (USD)
Mid Waverly Advisors, LLC	55,556	$31,444
Mega SUSQUEHANNA INTERNATIONAL GROUP, LLP	29,945	$16,948
Small Texas Capital Bank Wealth Management Services Inc	11,000	$6,226
Small Your Advocates Ltd., LLP	250	$141
Large MAI Capital Management	233	$131

Filter: New 8 Increased 12 Reduced 13 Sold out 6 Unchanged 19

Showing 52 of 52

All Common Calls Puts

Compact Export CSV

Holder

Value (USD)

% of 13F

AVENIR CORP

$1,940,767

32.13%

5,189,218

NEUBERGER BERMAN GROUP LLC

$736,289

12.19%

1,968,691

VANGUARD CAPITAL MANAGEMENT LLC

$715,859

11.85%

1,914,063

CM Management, LLC

$552,211

9.14%

1,476,500

Skylands Capital, LLC

$453,063

7.50%

1,211,400

BlackRock, Inc.

$234,576

3.88%

627,211

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
BlackRock Institutional Trust Company, N.A.	627,211	$234,576	100.0%	Sole

GEODE CAPITAL MANAGEMENT, LLC

$225,169

3.73%

602,059

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
GEODE CAPITAL MANAGEMENT TRUST COMPANY, LLC	113,637	$42,500	18.9%	Defined
Held directly	488,422	$182,669	81.1%	Defined

Sargent Investment Group, LLC

$207,853

3.44%

555,757

Pathstone Holdings, LLC

$186,966

3.09%

499,910

VANGUARD FIDUCIARY TRUST CO

$118,246

1.96%

316,167

CIBC Bancorp USA Inc.

$64,570

1.07%

172,649

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
CIBC Private Wealth Advisors, Inc.	172,649	$64,570	100.0%	Defined

STATE STREET CORP

$59,575

0.99%

159,293

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
STATE STREET GLOBAL ADVISORS TRUST COMPANY	159,293	$59,575	100.0%	Defined

OSAIC HOLDINGS, INC.

$50,429

0.83%

134,839

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
OSAIC WEALTH, INC.	109,559	$40,975	81.3%	Defined
OSAIC INSTITUTIONS, INC.	25,280	$9,454	18.7%	Defined

UBS Group AG

$49,000

0.81%

131,019

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
UBS AG	128,546	$48,076	98.1%	Defined
UBS Securities LLC	2,473	$924	1.9%	Defined

NORTHERN TRUST CORP

$41,760

0.69%

111,660

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
NORTHERN TRUST CO joint	111,660	$41,760	100.0%	Defined

RAYMOND JAMES FINANCIAL INC

$40,245

0.67%

107,611

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
RAYMOND JAMES & ASSOCIATES	52,293	$19,557	48.6%	Defined
Raymond James Financial Services Advisors, Inc.	55,318	$20,688	51.4%	Defined

NWF Advisory Services Inc.

$38,947

0.64%

104,139

RENAISSANCE TECHNOLOGIES LLC

$37,407

0.62%

100,020

MORGAN STANLEY

$34,159

0.57%

91,338

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
MORGAN STANLEY & CO INTERNATIONAL PLC	62	$23	0.1%	Defined
MORGAN STANLEY SMITH BARNEY LLC	90,989	$34,029	99.6%	Defined
PARAMETRIC PORTFOLIO ASSOCIATES LLC	287	$107	0.3%	Defined

Key Client Fiduciary Advisors, LLC

$29,342

0.49%

78,457

Virtu Financial LLC

$26,743

0.44%

71,508

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Virtu Americas LLC	71,508	$26,743	100.0%	Defined

XTX Topco Ltd

$20,314

0.34%

54,316

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
XTX EXECUTION SERVICES LLC joint	54,316	$20,314	100.0%	Defined

JANE STREET GROUP, LLC

$19,524

0.32%

52,205

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Jane Street Capital, LLC	29,606	$11,072	56.7%	Defined
Jane Street Global Trading, LLC	22,599	$8,452	43.3%	Defined

LPL Financial LLC

$18,744

0.31%

50,119

STIFEL FINANCIAL CORP

$17,952

0.30%

48,000

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
STIFEL NICOLAUS & CO INC \MO\	48,000	$17,952	100.0%	Defined

BANK OF AMERICA CORP /DE/

$14,468

0.24%

38,686

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
BANK OF AMERICA NA	38,686	$14,468	100.0%	Defined

HRT FINANCIAL LP

$12,014

0.20%

32,125

Kestra Advisory Services, LLC

$10,546

0.17%

28,200

EP Wealth Advisors, LLC

$10,472

0.17%

28,000

RITHOLTZ WEALTH MANAGEMENT

$10,263

0.17%

27,443

SFMG, LLC

$7,480

0.12%

20,000

Creative Planning

$7,089

0.12%

18,956

Seelaus Asset Management LLC

$6,096

0.10%

16,300

GOLDMAN SACHS GROUP INC

$5,736

0.09%

15,338

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
GOLDMAN SACHS & CO. LLC	15,338	$5,736	100.0%	Defined

Merit Financial Group, LLC

$5,721

0.09%

15,297

FIRST NATIONAL BANK OF OMAHA

$5,694

0.09%

15,225

CITADEL ADVISORS LLC

$5,385

0.09%

14,400

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Citadel Securities GP LLC	14,400	$5,385	100.0%	Defined

Vanguard Global Advisers, LLC

$5,185

0.09%

13,865

NORTHWESTERN MUTUAL WEALTH MANAGEMENT CO

$4,179

0.07%

11,176

Tower Research Capital LLC (TRC)

$3,823

0.06%

10,223

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Latour Trading LLC (Latour)	10,223	$3,823	100.0%	Defined

MARATHON CAPITAL MANAGEMENT

$3,740

0.06%

10,000

FIFTH THIRD BANCORP

$1,155

0.02%

3,090

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Fifth Third Bank, National Association	3,090	$1,155	100.0%	Defined

Global Retirement Partners, LLC

$881

0.01%

2,358

Rockefeller Capital Management L.P.

$617

0.01%

1,652

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
ROCKEFELLER FINANCIAL LLC	1,652	$617	100.0%	Defined

Integrated Wealth Concepts LLC

$328

0.01%

879

JPMORGAN CHASE & CO

$139

0.00%

372

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
J.P. Morgan Securities plc	372	$139	100.0%	Defined

BARCLAYS PLC

$107

0.00%

287

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
BARCLAYS CAPITAL INC.	287	$107	100.0%	Defined

WELLS FARGO & COMPANY/MN

$93

0.00%

250

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
WELLS FARGO CLEARING SERVICES, LLC	250	$93	100.0%	Defined

PNC FINANCIAL SERVICES GROUP, INC.

$11

0.00%

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
PNC Bank, National Association	31	$11	100.0%	Defined

Farther Finance Advisors, LLC

0.00%

BNP PARIBAS ARBITRAGE, SA

0.00%

SBI Securities Co., Ltd.

0.00%

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
G1 EXECUTION SERVICES, LLC	29,945	$16,948	100.0%	Other

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Edward D. Jones & Co., L.P.	93	$52	100.0%	Sole

Key facts CIK 1175151 CUSIP 23283X206 13F (30d) 43 filings 43 filers Visit website Investor relations