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Cytosorbents (CTSO) Institutional Ownership

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$0.38 0.00 (-0.34%)
Closing price 07/13/2026 04:00 PM Eastern
Extended Trading
$0.39 +0.01 (+1.84%)
As of 07/13/2026 04:10 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.
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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)
$642.34K
Number of
Institutional Sellers
(last 12 months)
6
Total
Institutional Outflows
(last 12 months)
$907.90K
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CTSO Institutional Buying and Selling by Quarter

Cytosorbents Major Shareholders & Ownership History

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Reporting DateMajor Shareholder NameShares HeldMarket Value% of PortfolioQuarterly Change in SharesOwnership in CompanyDetails
4/22/2026Skylands Capital LLC1,707,498$967K0.1%-7.9%2.723%
2/16/2026Sargent Investment Group LLC612,000$391K0.0%-17.2%0.975%
2/13/2026Avenir Corp5,230,099$3.34M0.4%+2.9%8.328%
2/12/2026Renaissance Technologies LLC100,120$64K0.0%-25.7%0.159%
2/2/2026CM Management LLC1,476,500$944K0.8%+14.6%2.351%
1/30/2026Skylands Capital LLC1,854,515$1.19M0.2%-12.8%2.953%
11/21/2025CIBC Bancorp USA Inc.172,649$161K0.0%N/A0.275%
11/17/2025Susquehanna International Group LLP98,221$92K0.0%-25.5%0.156%
11/17/2025Citadel Advisors LLC65,690$61K0.0%+127.3%0.105%
11/13/2025CM Management LLC1,288,128$1.20M1.0%+3.1%2.052%
11/7/2025GSA Capital Partners LLP112,217$105K0.0%N/A0.179%
11/7/2025Vanguard Group Inc.2,204,294$2.06M0.0%+3.7%3.512%
11/6/2025Skylands Capital LLC2,127,265$1.99M0.3%-18.7%3.389%
9/4/2025Osaic Holdings Inc.130,419$167K0.0%-20.4%0.208%
8/15/2025Avenir Corp5,058,537$6.48M0.7%+0.3%8.060%
8/8/2025Geode Capital Management LLC601,451$770K0.0%-2.0%0.961%
6/27/2025Goldman 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%
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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%
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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%
5/16/2022Granahan Investment Management LLC1,215,928$3.88M0.1%+10.0%2.791%


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 ($505.58K), Sargent Investment Group LLC ($259.93K), Skylands Capital LLC ($247.28K), Raymond James Financial Inc. ($217.24K), CIBC Bancorp USA Inc. ($172.65K), and GSA Capital Partners LLP ($112.22K).

Institutional investors have bought a total of 788,571 shares in the last 24 months. This purchase volume represents approximately $642.34K 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), Susquehanna International Group LLP ($33.63K), Osaic Holdings Inc. ($33.33K), and Geode Capital Management LLC ($12.40K).

Institutional investors have sold a total of 1,149,967 shares in the last 24 months. This volume of shares sold represents approximately $907.90K in transactions.


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This page (NASDAQ:CTSO) was last updated on 7/14/2026 by MarketBeat.com Staff.
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