Cytosorbents Corp (CTSO) Insider Trading -- Recent Executive & Director Transactions
5 insiders reported 15 Form 4 transactions for Cytosorbents Corp (CTSO) over the past 18 months (most recent 2026-09-16). Recent activity: Capponi Vincent (President and COO) Buy 1,800 shares, Chan Phillip P. (Chief Executive Officer) Buy 3,774 shares, Sobel Alan D. (Director) Buy 1,900 shares, Capponi Vincent (President and COO) Buy 273 shares, Sobel Alan D. (Director) Buy 500 shares. Source: SEC Form 4.
| Date | Insider | Title | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-09-16 | Capponi Vincent | President and COO | Buy | 1,800 | $10,926 |
| 2026-09-16 | Chan Phillip P. | Chief Executive Officer | Buy | 3,774 | $22,644 |
| 2026-09-16 | Sobel Alan D. | Director | Buy | 1,900 | $11,628 |
| 2026-09-16 | Capponi Vincent | President and COO | Buy | 273 | $1,611 |
| 2026-09-16 | Sobel Alan D. | Director | Buy | 500 | $3,025 |
| 2026-09-16 | Sobel Alan D. | Director | Buy | 100 | $601 |
| 2026-09-09 | Chan Phillip P. | Chief Executive Officer | Buy | 200,000 | $70,000 |
| 2026-06-16 | MARIANI PETER J | Chief Financial Officer | Buy | 100,000 | $44,000 |
| 2026-06-15 | Chan Phillip P. | Chief Executive Officer | Buy | 251,136 | $100,454 |
| 2026-06-15 | Chan Phillip P. | Chief Executive Officer | Buy | 10,333 | $4,443 |
| 2025-11-20 | Chan Phillip P. | Chief Executive Officer | Buy | 100,000 | $64,000 |
| 2025-08-08 | MARIANI PETER J | Chief Financial Officer | Buy | 71,500 | $0 |
| 2025-08-08 | Capponi Vincent | President and COO | Buy | 89,100 | $0 |
| 2025-08-08 | Chan Phillip P. | Chief Executive Officer | Buy | 105,600 | $0 |
| 2025-08-08 | Deliargyris Efthymios | Chief Medical Officer | Buy | 70,000 | $0 |
Source: SEC Form 4 filings · as of 2026-09-16