Cytosorbents (CTSO)Director bought ~$3K
Alan D. Sobel, Director at Cytosorbents, bought ~$3K of Cytosorbents shares.
- ~$3K
- Approx. value · 500 sh @ $6.05
- 9,787
- Holds after · shares reported
- Traded
- Sep 15, 2026
- Filed
- Sep 16, 2026
The story around this disclosure
Every dated public record OQRO holds about the company from 60 days before to 120 days after, oldest first. It shows what was going on; none of it is a stated reason for the trade.
- Aug 6, 2026Company filing · Form 8-K · ResultsReported its results
- Sep 4, 2026InsiderCEO purchased ~$70K of CTSO shares in the open market
- Sep 8, 2026Company filing · Form 8-K · Bylaws or charterChanged its bylaws, charter or fiscal year
- Sep 14, 2026Insider · 1 personInsiders: 2 purchases (~$13K)
- Sep 15, 2026 · this disclosureInsider · 3 insiders in a week, 3rd time since 2006Director purchased ~$3K of CTSO shares in the open market
What came next
- Sep 15, 2026Insider · 2 peopleInsiders: 3 purchases (~$35K)
How to read SEC Form 4
Form 4 is the filing that officers, directors and owners of more than 10% of a US-listed company must send to the SEC within two business days after they buy, sell or otherwise change their holding of the company's stock.
Full guide: What is an SEC Form 4?
What else is on file for Cytosorbents
For Cytosorbents, OQRO holds 7 insider filings (SEC Form 4 or Form 144) dated in the last 90 days.
These are records OQRO holds, counted by their date, not a measure of how much trading took place. Routine paperwork such as option exercises and tax withholding is left out. Everything for the company is on its CTSO page.
Other recent filings by Alan D. Sobel, Director
The full history of Alan D. Sobel, Director is on the profile page.
How this filing works
Other disclosures at Cytosorbents
- SEC Form 4Sep 16, 2026
- SEC Form 4Sep 16, 2026
- SEC Form 4Sep 16, 2026
- SEC Form 4Sep 16, 2026
- SEC Form 4Sep 16, 2026
- SEC Form 4Sep 9, 2026
Everything OQRO holds on this company is on its CTSO page.
This is one filing. OQRO holds the rest
Insider trades filed with the SEC, stock trades disclosed by members of Congress, fund holdings from 13F filings and federal contract awards, each one in plain words next to its official filing. On this page it opens why the trade stands out, what the company did around that time, the price since, and every field of the form.
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