Cytosorbents Corp (CTSO) Insider Trading

3 insiders at Cytosorbents Corp (CTSO) have purchased stock in the past 90 days, totaling $50K across 6 transactions (8,347 shares).

The most recent purchase was by Director Sobel Alan D. on September 15, 2026 — a $12K buy of 1,900 shares at $6.12, bringing his total holdings to 9,287 shares.

Insiders who purchased: Chan Phillip P. (CEO, 1 buy totaling $23K); Sobel Alan D. (Director, 3 buys totaling $15K); Capponi Vincent (COO, 2 buys totaling $13K).

This level of insider buying appears elevated compared to CTSO's typical activity — there were 1 purchase in the prior nine months.

CTSO is in the Health Care sector within the Health Care industry with a market cap of $19M.

With 3 different insiders buying in the same 90-day window, this qualifies as cluster buying at CTSO — a pattern that research suggests can signal conviction among management.

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