// company-profile
Cytosorbents Corp
CTSO// activity-summary
Recent insider activity is bullish. Over the last 30 days, 3 insiders purchased shares (net $149K). Buying was led by Chan Phillip P..
// 90-day insight
Over the last 90 days, Cytosorbents Corp insiders bought $149K across 3 transactions with no open-market sales.
- Most active insider: Chan Phillip P. with 2 transactions totaling $105K.
- Largest single purchase: $100K by Chan Phillip P. on Jun 12, 2026.
Activity skews bullish — buys outpace sales.
Institutional Ownership
Top 13F-HR holders of Cytosorbents Corp as of 2026-03-31
Data source: SEC Form 13F-HR filings. Joined with insider activity above — see who's loading up institutionally while insiders are trading. Full 13F-HR API →
Insider Transactions
Sourced from SEC EDGAR Form 4 filings. Updated hourly.
| Date | Insider | Company | Type | Shares | Price | Value |
|---|---|---|---|---|---|---|
| Jun 15, 2026 | MARIANI PETER J | CTSO | Purchase | 100,000 | $0.44 | $44K |
| Jun 15, 2026 | Chan Phillip P. | CTSO | Purchase | 10,333 | $0.43 | $4K |
| Jun 12, 2026 | Chan Phillip P. | CTSO | Purchase | 251,136 | $0.40 | $100K |
| Nov 18, 2025 | Chan Phillip P. | CTSO | Award | 100,000 | $0.64 | $64K |
| Aug 8, 2025 | MARIANI PETER J | CTSO | Award | 90,000 | $0.00 | $0K |
45 more transactions hidden
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