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CTSO

Cytosorbents Corporation

NASDAQ · Healthcare · Medical - Devices · US

$0.35
+0.03%
Ask drillr
3
Insider buys (3m)
0
Insider sells (3m)
$148.9K
Net value (3m)
-20.2%
Price return (3m)
Form 4 filings
DateInsiderActivitySharesPrice
Jun 16, 2026MARIANI PETER J · officer: Chief Financial OfficerPurchase100,000$0.44
Jun 15, 2026Chan Phillip P. · director, officer: Chief Executive OfficerPurchase251,136$0.40
Jun 15, 2026Chan Phillip P. · director, officer: Chief Executive OfficerPurchase10,333$0.43
Nov 20, 2025Chan Phillip P. · director, officer: Chief Executive OfficerA-Award100,000$0.64
Aug 8, 2025Kim Jiny · directorA-Award22,000$1.00
Aug 8, 2025Deliargyris Efthymios · officer: Chief Medical OfficerA-Award70,000$0.00
Aug 8, 2025Jones Edward Raymond · directorA-Award22,000$1.00
Aug 8, 2025Chan Phillip P. · director, officer: Chief Executive OfficerA-Award105,600$0.00
Aug 8, 2025Capponi Vincent · officer: President and COOA-Award89,100$0.00
Aug 8, 2025Sobel Alan D. · directorA-Award22,000$1.00
Aug 8, 2025Capponi Vincent · officer: President and COOA-Award111,100$1.00
Aug 8, 2025MARIANI PETER J · officer: Chief Financial OfficerA-Award71,500$0.00
Aug 8, 2025Chan Phillip P. · director, officer: Chief Executive OfficerA-Award136,400$1.00
Aug 8, 2025BATOR MICHAEL G. · directorA-Award44,000$1.00
Aug 8, 2025MARIANI PETER J · officer: Chief Financial OfficerA-Award90,000$1.00
Aug 8, 2025Deliargyris Efthymios · officer: Chief Medical OfficerA-Award95,000$1.00
Dec 16, 2024MARIANI PETER J · officer: Chief Financial OfficerPurchase20,000$0.96
Dec 13, 2024MARIANI PETER J · officer: Chief Financial OfficerPurchase20,000$0.89
Dec 13, 2024MARIANI PETER J · officer: Chief Financial OfficerPurchase11,363$0.89
Oct 8, 2024Deliargyris Efthymios · officer: Chief Medical OfficerA-Award50,000$1.19
Oct 8, 2024Capponi Vincent · officer: President and COOA-Award50,000$1.19
Oct 8, 2024Capponi Vincent · officer: President and COOA-Award100,000$1.19
Oct 8, 2024Deliargyris Efthymios · officer: Chief Medical OfficerA-Award100,000$1.19
Aug 16, 2024MARIANI PETER J · officer: Chief Financial OfficerA-Award110,000$0.00
Aug 16, 2024MARIANI PETER J · officer: Chief Financial OfficerA-Award175,000$0.00
Aug 16, 2024MARIANI PETER J · officer: Chief Financial OfficerA-Award65,000$0.00
Aug 16, 2024MARIANI PETER J · officer: Chief Financial OfficerA-Award215,000$0.90
Aug 16, 2024MARIANI PETER J · officer: Chief Financial OfficerA-Award80,000$0.90
Apr 4, 2024BLOCH KATHLEEN P. · officer: Chief Financial OfficerA-Award65,000$0.00
Apr 4, 2024BLOCH KATHLEEN P. · officer: Chief Financial OfficerA-Award87,000$0.95
Institutional positioning

13F filings over the trailing two quarters

New 10Increased 10Reduced 14Sold out 50
FilerActionSharesFiled
AVENIR CORPReduced5,215,776May 14, 2026
VANGUARD CAPITAL MANAGEMENT LLCNew Position1,879,989May 15, 2026
SKYLANDS CAPITAL, LLCReduced1,707,498Apr 22, 2026
NEUBERGER BERMAN GROUP LLCIncreased1,683,007May 14, 2026
CM MANAGEMENT, LLCUnchanged1,476,500May 8, 2026
BLACKROCK, INC.Increased782,992May 13, 2026
GEODE CAPITAL MANAGEMENT, LLCIncreased707,262May 15, 2026
SARGENT INVESTMENT GROUP, LLCReduced549,900May 11, 2026
PATHSTONE HOLDINGS, LLCUnchanged499,955May 11, 2026
VANGUARD FIDUCIARY TRUST CONew Position313,856May 8, 2026
CIBC Bancorp USA Inc.New Position172,649May 12, 2026
STATE STREET CORPUnchanged159,293May 15, 2026
ADVISOR GROUP HOLDINGS, INC.Unchanged130,419May 15, 2026
UBS GROUP AGReduced115,200May 5, 2026
RAYMOND JAMES FINANCIAL INCReduced107,751May 14, 2026

Insider activity from SEC Form 4; institutional positioning from 13F filings · Latest filing Jun 16, 2026