Cytosorbents Corp: which funds bought and sold

Institutions that bought and sold Cytosorbents shares in Q2 2026, from the holdings they reported to the SEC on Form 13F for March 31, 2026 and June 30, 2026.

Between March 31, 2026 and June 30, 2026, 18 institutions that filed 13F reports for both quarters added to or opened positions in Cytosorbents, and 21 cut or closed them. Together they sold a net 336K shares, −2.0% on what they held at the start of the quarter. Active managers and hedge funds on our list were net buyers of 274K shares (+15.3%); index fund managers were net sellers of 205K shares (−5.2%). 7 opened a new position and 8 sold out entirely.

Bought, Q2 2026 18 institutions, 7 of them new holders Sold, Q2 2026 21 institutions, 8 of them sold out

Net change, all compared −336K shares (−2.0%)

Net change, active managers +274K shares (+15.3%), 1 bought, 2 sold

Buyers versus sellers

institutions compared, 57

18 bought 18 21 sold

Active managers and hedge funds 1 bought · 2 sold · +274K

Index fund managers 3 bought · 2 sold · −205K

Other institutions 14 bought · 17 sold · −404K

Biggest buyers

by change in shares held

Biggest buyers
Institution	Change in shares	Shares June 30, 2026	Value
Neuberger Berman Group LLC Active manager	+286K +17.0%	2.0M	$740,516
Virtu Financial LLC	+72K New position	72K	$27,000
Jane Street Group, LLC	+52K New position	52K	$19,525
Vanguard Capital Management LLC Index funds	+34K +1.8%	1.9M	$715,860
LPL Financial LLC	+27K +116.2%	50K	$18,744
Sfmg, LLC	+20K New position	20K	$7,480
Northern Trust Corp Index funds	+19K +20.7%	112K	$41,761
Xtx Topco Ltd	+19K +52.7%	54K	$20,314
HRT Financial LP	+18K +127.6%	32K	$12,000
UBS Group AG	+16K +13.7%	131K	$49,001
Northwestern Mutual Wealth Management Co	+11K New position	11K	$4,180
Tower Research Capital LLC (TRC)	+10K New position	10K	$3,823
Sargent Investment Group, LLC	+5,857 +1.1%	556K	$207,853
Osaic Holdings, Inc.	+4,420 +3.4%	135K	$49,991
Vanguard Fiduciary Trust Co Index funds	+2,311 +0.7%	316K	$118,246
Integrated Wealth Concepts LLC	+879 New position	879	$329
Barclays PLC	+287 New position	287	$107
Fifth Third Bancorp	+8 +0.3%	3,090	$1,155

Biggest sellers

by change in shares held

Biggest sellers
Institution	Change in shares	Shares June 30, 2026	Value
Skylands Capital, LLC	−496K −29.1%	1.2M	$453,064
Blackrock, Inc. Index funds	−156K −19.9%	627K	$234,577
Geode Capital Management, LLC Index funds	−105K −14.9%	602K	$225,239
Waverly Advisors, LLC	−56K Sold out	0	—
Susquehanna International Group, LLP	−30K Sold out	0	—
Goldman Sachs Group Inc	−29K −65.1%	15K	$5,736
Avenir Corp	−27K −0.5%	5.2M	$1.9M
Texas Capital Bank Wealth Management Services Inc	−11K Sold out	0	—
Citadel Advisors LLC Hedge fund	−11K Sold out	0	—
Morgan Stanley	−8,831 −8.8%	91K	$34,160
Creative Planning	−2,339 −11.0%	19K	$7,090
Renaissance Technologies LLC Hedge fund	−700 −0.7%	100K	$37,407
Bank Of America Corp	−437 −1.1%	39K	$14,468
Your Advocates Ltd., LLP	−250 Sold out	0	—
Mai Capital Management	−233 Sold out	0	—
Rockefeller Capital Management L.P.	−209 −11.2%	1,652	$618
Raymond James Financial Inc	−140 −0.1%	108K	$40,247
Jones Financial Companies LLLP	−93 Sold out	0	—
Pathstone Holdings, LLC	−45 0.0%	500K	$186,966
BNP Paribas Financial Markets	−14 −82.4%	3	$1

Biggest sellers, active managers and hedge funds
Institution	Change in shares	Shares June 30, 2026	Value
Citadel Advisors LLC Hedge fund	−11K Sold out	0	—
Renaissance Technologies LLC Hedge fund	−700 −0.7%	100K	$37,407

New positions

largest by value

Institution	Shares	Value June 30, 2026
Virtu Financial LLC	72K	$27,000
Jane Street Group, LLC	52K	$19,525
Sfmg, LLC	20K	$7,480
Northwestern Mutual Wealth Management Co	11K	$4,180
Tower Research Capital LLC (TRC)	10K	$3,823
Integrated Wealth Concepts LLC	879	$329
Barclays PLC	287	$107

Sold out

largest by value

Institution	Shares	Value March 31, 2026
Waverly Advisors, LLC	56K	$31,461
Susquehanna International Group, LLP	30K	$16,958
Texas Capital Bank Wealth Management Services Inc	11K	$6,229
Citadel Advisors LLCHedge fund	11K	$6,115
Your Advocates Ltd., LLP	250	$143
Mai Capital Management	233	$132
Jones Financial Companies LLLP	93	$55
Sbi Securities Co., Ltd.	1	$1

Who holds the shares

13F holdings at June 30, 2026

Institutions reporting: 50
Ten largest holders: 89.0%
Index fund managers: 23.1%
Active managers and hedge funds: 12.8%

Buying and selling by type of institution, March 31, 2026 to June 30, 2026
Type	Bought	Sold	New	Sold out	Net change in shares	Net %
Active managers and hedge funds	1	2	0	1	+274K	+15.3%
Index fund managers	3	2	0	0	−205K	−5.2%
Other institutions	14	17	7	7	−404K	−3.8%

Active managers and hedge funds: a list we maintain of about 400 well-known stock-picking firms and hedge funds, matched by SEC registration number (CIK) and checked against the filer names each quarter. Index fund managers: the large index houses, such as BlackRock, Vanguard, State Street, Geode and Northern Trust. Every other filer (banks, brokers, wealth managers, pension funds, insurers and firms not on the list) counts as another institution. A firm that files under several SEC registrations appears once for each.

What these filings can and cannot tell you

Form 13F lists the long positions in US-listed shares held by investment managers with more than $100 million in such holdings. Managers file it up to 45 days after each quarter ends, so this page shows what funds held at the end of each quarter, not what they are doing now: a position may have changed since. Short positions, most derivatives and smaller managers are not included, and a cut can mean a fund lost clients or rebalanced rather than a view on Cytosorbents.

Only managers that filed a holdings report for both quarters are compared (57 here). 1 other holder is left out: first-time or late filers, firms that changed their SEC registration, and filings that withheld positions under confidential treatment, any of which would otherwise look like a new position or a sale. Figures are as reported by each manager in the SEC's quarterly 13F data sets; option positions are excluded.

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