By CapitalSnitch Research Desk · updated Oct 11, 2026 · data from SEC filings and official Congress disclosures
No open-market selling at Cytosorbents Corp in the past year, which is unusual. Instead four corporate insiders bought into about $199,000 worth of CTSO.
The largest purchase came from Chan Phillip P. (CEO), about $100,000. Notably, at least one C-suite executive was among the buyers.
Quarter by quarter: 2 quarters in a row of net buying by insiders. Insiders bought in 2 of the last 7 full quarters. 51 investment managers listed CTSO in their latest 13F filings (Q2 2026); funds were split between buying and selling.
Are insiders buying or selling CTSO stock?
In the last 12 months Cytosorbents Corp insiders made open-market purchases worth about $199,000 and sales worth about $0. Data comes from SEC Form 4 filings, updated every 30 minutes on CapitalSnitch.
When was the last insider trade in CTSO?
The most recent open-market insider trade in CTSO was filed on 2026-09-16.
How many institutions own CTSO?
51 investment managers reported holding CTSO in SEC Form 13F filings for Q2 2026.
Has any member of Congress traded CTSO?
No congressional trades in CTSO were reported in the past two years. The full list is free on CapitalSnitch.
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Public-record data for research and education, not investment advice. Insider sales are often pre-planned (10b5-1).
Congress data: Data derived from public disclosures filed under the Ethics in Government Act and the STOCK Act, republished free for public transparency and news reporting. Disclosures may lag the trade by 45 days or more and show amounts only as ranges. This data may not be used for credit rating, loan underwriting, solicitation of money (political, charitable or other), direct-mail or commercial targeting (5 U.S.C. 13107).