Go Pro
→ Ticker Revealed: Pre-IPO Access to 'Next Elon Musk' Company (From Banyan Hill Publishing) (Ad)tc pixel Free CTSO Stock Alerts

Cytosorbents (CTSO) Institutional Ownership

Cytosorbents logo
$6.41 +0.04 (+0.63%)
Closing price 09/11/2026 04:00 PM Eastern
Extended Trading
$6.50 +0.09 (+1.40%)
As of 09/11/2026 07:30 PM Eastern
Extended trading is trading that happens on electronic markets outside of regular trading hours. This is a fair market value extended hours price provided by Massive. Learn more.
Compare

Institutional Ownership Changes (13F Filings) for Cytosorbents (NASDAQ:CTSO)

Current
Institutional Ownership
Percentage
32.87%
Number of
Institutional Buyers
(last 12 months)
6
Total
Institutional Inflows
(last 12 months)
$12.50M
Number of
Institutional Sellers
(last 12 months)
4
Total
Institutional Outflows
(last 12 months)
$16.99M
Get CTSO Insider Trade Alerts

Want to know when executives and insiders are buying or selling Cytosorbents stock? Sign up for InsiderTrades.com's daily newsletter to get the latest insider transactions delivered to your inbox daily.

Subscribe Now
SMS is currently available in Australia, Belgium, Canada, France, Germany, Ireland, Italy, New Zealand, the Netherlands, Singapore, South Africa, Spain, Switzerland, the United Kingdom, and the United States. By entering your phone number and clicking the sign-up button, you agree to receive periodic text messages from MarketBeat at the phone number you submitted, including texts that may be sent using an automatic telephone dialing system. Message and data rates may apply. Message frequency will vary. Messages will consist of stock alerts, news stories, and partner advertisements/offers. Consent is not a condition of the purchase of any goods or services. Text HELP for help/customer support. Unsubscribe at any time by replying "STOP" to any text message that you receive from MarketBeat or by visiting our mailing preferences page. Read our full terms of service and privacy policy.
Skip Chart & View Institutional Buying and Selling Data

CTSO Institutional Buying and Selling by Quarter

Cytosorbents Major Shareholders & Ownership History

Export
Reporting DateMajor Shareholder NameShares HeldMarket Value% of PortfolioQuarterly Change in SharesOwnership in CompanyDetails
4/22/2026 Skylands Capital LLC1,707,498$967K0.1%-7.9%2.723%
2/16/2026 Sargent Investment Group LLC612,000$391K0.0%-17.2%0.975%
2/13/2026 Avenir Corp5,230,099$3.34M0.4%+2.9%8.328%
2/12/2026 Renaissance Technologies LLC100,120$64K0.0%-25.7%0.159%
2/2/2026 CM Management LLC1,476,500$944K0.8%+14.6%2.351%
1/30/2026 Skylands Capital LLC1,854,515$1.19M0.2%-12.8%2.953%
11/21/2025 CIBC Bancorp USA Inc.172,649$161K0.0%N/A0.275%
11/17/2025 Susquehanna International Group LLP98,221$92K0.0%-25.5%0.156%
11/17/2025 Citadel Advisors LLC65,690$61K0.0%+127.3%0.105%
11/13/2025 CM Management LLC1,288,128$1.20M1.0%+3.1%2.052%
11/7/2025 GSA Capital Partners LLP112,217$105K0.0%N/A0.179%
11/7/2025Vanguard Group Inc.2,204,294$2.06M0.0%+3.7%3.512%
11/6/2025 Skylands Capital LLC2,127,265$1.99M0.3%-18.7%3.389%
9/4/2025 Osaic Holdings Inc.130,419$167K0.0%-20.4%0.208%
8/15/2025 Avenir Corp5,058,537$6.48M0.7%+0.3%8.060%
8/8/2025 Geode Capital Management LLC601,451$770K0.0%-2.0%0.961%
6/27/2025 Goldman Sachs Group Inc.62,662$63K0.0%+149.2%0.100%
5/16/2025Goldman Sachs Group Inc.62,662$63K0.0%+149.2%0.100%
5/16/2025Granahan Investment Management LLC358,418$358K0.0%-70.2%0.572%
5/14/2025Avenir Corp5,044,918$5.05M0.5%+63.1%8.058%
5/9/2025CM Management LLC954,076$954K0.9%+36.3%1.524%
5/5/2025Sargent Investment Group LLC823,500$824K0.1%-34.1%1.315%
4/25/2025Skylands Capital LLC3,002,702$3.00M0.4%+7.9%4.804%
4/10/2025Key Client Fiduciary Advisors LLC78,457$78K0.0%+127.0%0.126%
2/17/2025Millennium Management LLC33,280$30K0.0%N/A0.061%
2/17/2025Granahan Investment Management LLC1,204,580$1.10M0.0%-42.5%2.203%
2/14/2025Northern Trust Corp91,560$83K0.0%+22.3%0.167%
2/13/2025Avenir Corp3,093,946$2.82M0.3%+4.0%5.658%
2/13/2025Neuberger Berman Group LLC1,681,883$1.53M0.0%-5.6%3.076%
2/13/2025Raymond James Financial Inc.108,621$99K0.0%N/A0.199%
2/13/2025Renaissance Technologies LLC88,020$80K0.0%+10.6%0.161%
2/7/2025CM Management LLC700,000$637K0.6%-12.5%1.280%
2/6/2025Raymond James Financial Inc.108,621$99K0.0%N/A0.199%
2/4/2025Skylands Capital LLC2,781,622$2.53M0.4%+1.0%5.087%
1/27/2025Sargent Investment Group LLC1,248,863$1.14M0.2%-23.2%2.284%
11/16/2024Geode Capital Management LLC467,058$701K0.0%+7.5%0.854%
11/6/2024Sargent Investment Group LLC1,626,247$2.44M0.4%+13.4%2.988%
10/8/2024Atomi Financial Group Inc.34,292$51K0.0%N/A0.063%
8/10/2024Sargent Investment Group LLC1,433,500$1.01M0.2%+4.9%2.640%
8/2/2024CM Management LLC850,000$598K0.5%+3.0%1.565%
Here’s the stock symbol I’ve promised (Ad)

Whitney Tilson of Stansberry Research has long recommended Berkshire Hathaway as a core retirement holding - but now he believes he's found something better. This under-the-radar company sits at the intersection of America's two most important industries, including AI, pays massive dividends, and attracted a famous money manager who put 60% of his multi-billion-dollar fund into it. Tilson is revealing the name and ticker symbol completely free - no credit card or email required.tc pixel

Get the stock name and ticker symbol free of charge today
7/26/2024Skylands Capital LLC2,840,778$2.00M0.3%-1.2%5.231%
5/16/2024Avenir Corp3,172,696$3.01M0.3%+4.0%5.842%
5/14/2024CM Management LLC825,000$784K0.6%+98.8%1.519%
4/15/2024Key Client Fiduciary Advisors LLC34,557$33K0.0%+188.0%0.064%
2/14/2024Avenir Corp3,051,402$3.39M0.3%+12.3%6.866%
2/14/2024Neuberger Berman Group LLC1,801,799$2.00M0.0%+19.9%4.054%
2/9/2024Neuberger Berman Group LLC1,801,799$2.00M0.0%+19.9%4.054%
2/5/2024Skylands Capital LLC3,254,213$3.61M0.5%+10.5%7.323%
2/5/2024Sargent Investment Group LLC1,308,747$1.45M0.3%+4.1%2.945%
1/16/2024Raymond James & Associates50,000$56K0.0%N/A0.113%
11/13/2023Sargent Investment Group LLC1,257,048$2.36M0.6%-2.5%2.834%
11/1/2023Jacob Asset Management of New York LLC197,940$372K0.5%-16.8%0.446%
10/27/2023Skylands Capital LLC2,944,670$5.54M0.8%+5.4%6.638%
10/26/2023Chicago Partners Investment Group LLC36,358$67K0.0%+84.0%0.082%
8/14/2023Granahan Investment Management LLC1,616,587$5.80M0.2%+3.1%3.644%
8/11/2023Regal Investment Advisors LLC19,168$69K0.0%+36.6%0.043%
8/11/2023Avenir Corp2,719,732$9.76M0.9%+6.4%6.131%
8/8/2023Chicago Partners Investment Group LLC19,760$66K0.0%+88.2%0.045%
8/7/2023Acadian Asset Management LLC9,059$32K0.0%N/A0.020%
8/4/2023Simplex Trading LLC26,581$95K0.0%-18.8%0.060%
8/3/2023Skylands Capital LLC2,793,470$10.03M1.4%+1.4%6.356%
8/2/2023Houlihan Financial Resource Group Ltd.18,600$59K0.0%N/A0.042%
7/31/2023Cowen Prime Advisors LLC42,301$152K0.1%-8.1%0.096%
7/31/2023Sargent Investment Group LLC1,289,546$4.63M1.1%+5.8%2.934%
7/19/2023Eudaimonia Partners LLC23,500$84K0.0%+17.5%0.053%
7/10/2023B.O.S.S. Retirement Advisors LLC13,491$48K0.0%N/A0.031%
7/10/2023AE Wealth Management LLC13,783$49K0.0%N/A0.031%
5/15/2023Granahan Investment Management LLC1,567,540$5.28M0.2%-1.6%3.566%
5/11/2023Jacob Asset Management of New York LLC237,940$802K0.9%-4.0%0.541%
5/11/2023Texas Capital Bank Wealth Management Services Inc.37,625$127K0.0%-23.1%0.086%
5/8/2023CM Management LLC450,000$1.52M1.8%-5.3%1.024%
5/5/2023Coastal Investment Advisors Inc.12,000$40K0.0%N/A0.027%
5/4/2023Skylands Capital LLC2,754,970$9.28M1.4%+8.4%6.268%
5/3/2023Cowen Prime Advisors LLC46,050$113K0.0%+11.8%0.105%
5/2/2023Sargent Investment Group LLC1,218,533$4.22M1.1%+23.8%2.773%
4/26/2023Chicago Partners Investment Group LLC10,498$29K0.0%-31.0%0.024%
2/14/2023Avenir Corp2,447,089$3.79M0.4%+5.7%5.608%
2/14/2023Susquehanna International Group LLP31,943$50K0.0%+379.5%0.073%
2/14/2023Granahan Investment Management LLC1,593,711$2.47M0.1%+5.5%3.652%
2/13/2023Neuberger Berman Group LLC1,529,095$2.33M0.0%+3.3%3.504%
2/9/2023CM Management LLC475,000$736K0.9%-29.6%1.089%
2/9/2023Skylands Capital LLC2,542,091$3.94M0.6%+8.3%5.826%
1/31/2023Sargent Investment Group LLC984,133$1.53M0.5%-11.2%2.255%
1/24/2023Eudaimonia Partners LLC20,000$31K0.0%+81.8%0.046%
11/16/2022Avenir Corp2,314,854$3.15M0.3%+6.9%5.304%
11/14/2022Ergoteles LLC177,503$241K0.0%-12.4%0.407%
11/4/2022CM Management LLC675,000$918K1.0%+12.5%1.549%
11/1/2022Skylands Capital LLC2,347,034$3.19M0.5%+0.9%5.386%
10/27/2022Sargent Investment Group LLC1,108,233$2.03M0.6%+13.4%2.543%
8/15/2022Winning Points Advisors LLC24,900$54K0.1%-63.6%0.057%
Ticker Revealed: Pre-IPO Access to "Next Elon Musk" Company (Ad)

We’ve found The Next Elon Musk… and what we believe to be the next Tesla. It’s already racked up $26 billion in government contracts. Peter Thiel just bet $1 Billion on it.tc pixel

👉 Unlock the ticker now and get it completely free.
8/11/2022Avenir Corp2,164,999$4.74M0.5%-0.5%4.968%
8/8/2022CM Management LLC600,000$1.31M1.4%+71.4%1.377%
8/8/2022Y Intercept Hong Kong Ltd14,304$31K0.0%N/A0.033%
8/4/2022Texas Capital Bank Wealth Management Services Inc.48,958$107K0.0%N/A0.112%
8/1/2022Cowen Prime Advisors LLC42,200$92K0.1%+170.5%0.097%
7/28/2022Skylands Capital LLC2,324,997$5.09M0.7%+9.3%5.337%
7/27/2022Country Club Bank GFN15,225$34K0.0%N/A0.035%
7/26/2022Sargent Investment Group LLC977,496$2.14M0.7%+18.1%2.244%
7/19/2022Key Client Fiduciary Advisors LLC12,000$26K0.0%N/A0.028%


CTSO Institutional Ownership - Frequently Asked Questions

During the previous two years, 20 institutional investors and hedge funds held shares of Cytosorbents. The most heavily invested institutionals were Avenir Corp ($3.34M), Vanguard Group Inc. ($2.06M), Neuberger Berman Group LLC ($1.53M), Skylands Capital LLC ($967K), CM Management LLC ($944K), Geode Capital Management LLC ($770K), and Sargent Investment Group LLC ($391K).Learn more on Cytosorbents' institutional investors.

32.87% of Cytosorbents' stock is owned by institutional investors. Learn more on CTSO's institutional investor holdings.

Of the 16 institutional investors that purchased Cytosorbents' stock in the last 24 months, the following investors and hedge funds have bought the highest volume of shares: Avenir Corp ($2.23M), CM Management LLC ($480.58K), Skylands Capital LLC ($247.28K), Raymond James Financial Inc. ($217.24K), Sargent Investment Group LLC ($192.75K), CIBC Bancorp USA Inc. ($172.65K), and GSA Capital Partners LLP ($112.22K).

Institutional investors have bought a total of 774,952 shares in the last 24 months. This purchase volume represents approximately $12.50M in transactions.

The following institutional investors have sold Cytosorbents stock in the last 24 months: Skylands Capital LLC ($909.22K), Sargent Investment Group LLC ($126.70K), Renaissance Technologies LLC ($34.69K), and Susquehanna International Group LLP ($33.63K).

Institutional investors have sold a total of 1,104,234 shares in the last 24 months. This volume of shares sold represents approximately $16.99M in transactions.


Related Companies

Institutional ownership data for NASDAQ:CTSO is compiled from quarterly 13F filings submitted to the U.S. Securities and Exchange Commission (SEC), with the most recent received on 4/22/2026. New 13F filings are added each quarter as they're published.
From Our Partners
ALERT: Drop these 5 stocks before the market opens tomorrow!
The Wall Street Journal is already raising the alarm about a potential market crash, and Weiss Ratings researc...
Weiss Ratings | Sponsoredtc pixel
They didn't warn anyone in 1971. This time someone is warning you.
On August 15, 1971, Nixon interrupted prime-time television and ended the gold standard in 15 minutes - no deb...
Reagan Gold Group | Sponsoredtc pixel
The $15 Gold Fund That Pays Up to $1,152/Month
Gold is hitting record highs, but most investors are leaving income on the table. A $15 fund is quietly paying...
Investors Alley | Sponsoredtc pixel
Small Colorado Company (Backed by Sam Altman) Could Save U.S. Power Grid
A small Colorado company has secured rights to technology that could prevent the U.S. public power grid from c...
Altimetry | Sponsoredtc pixel
The end may be near for these iconic stocks
Marc Chaikin, founder of Chaikin Analytics, says two forces - AI disruption and fracturing global trade - are ...
Chaikin Analytics | Sponsoredtc pixel
Louis Navellier: My #1 AI stock for 2026 (name & ticker inside)
Louis Navellier's Stock Grader system helped him flag Nvidia before its 82,000% run and has identified the top...
InvestorPlace | Sponsoredtc pixel
Ready to give options a try? Your first trade (Ticker included) -INSIDE
Tired of trying tactic after tactic when it comes to options trades... only to be met with market noise and st...
Base Camp Trading | Sponsoredtc pixel
Iran War Shock: What I Was Told In That Private Meeting
You’re Being LIED To About The Iran War Forget EVERYTHING you’ve heard about the Iran war. Especially th...
Banyan Hill Publishing | Sponsoredtc pixel