Cytosorbents Corp (CTSO) has 78 open-market insider trades by 13 insiders since 2012. Over the last six months insiders net bought $269K. The most active filer is Kathleen P. Bloch, CFO.
| Name | Title | Tier | Trades | Value | Last Trade |
|---|---|---|---|---|---|
| Phillip P. Chan | CEO | — | 17 | $1.4M | 2026-09-15 |
| Kathleen P. Bloch | CFO | — | 24 | $1.3M | 2024-04-02 |
| Vincent Capponi | PresCOO | — | 11 | $1.2M | 2026-09-14 |
| Al Kraus | Dir | — | 5 | $500K | 2023-02-06 |
| NJTC Investment Fund, L.P. | 10% Owner | — | 2 | $478K | 2015-12-30 |
| James T. Gunton | Dir10% | — | 2 | $378K | 2015-04-08 |
| Michael G. Bator | Dir | — | 5 | $141K | 2025-02-24 |
| Peter J. Mariani | CFO | — | 3 | $91K | 2026-06-15 |
| Alan D. Sobel | Dir | — | 3 | $65K | 2026-09-15 |
| Efthymios Deliargyris | Chief Medical Officer | — | 1 | $30K | 2025-08-08 |
| Insider | Title | Type | Value | Date |
|---|---|---|---|---|
| Phillip P. Chan | CEO | Buy | $23K | 2026-09-15 |
| Alan D. Sobel | Director | Buy | $15K | 2026-09-15 |
| Vincent Capponi | President & COO | Buy | $13K | 2026-09-14 |
| Phillip P. Chan | CEO | Buy | $70K | 2026-09-04 |
| Peter J. Mariani | CFO | Buy | $44K | 2026-06-15 |
| Phillip P. Chan | CEO | Buy | $105K | 2026-06-12 |
Companies that share insiders with CTSO, and sector peers with recent insider buying. Related by who files, not by how the stocks move.
| Peter J. Mariani | CFO | Buy | $19K | 2024-12-13 |
| Peter J. Mariani | CFO | Buy | $28K | 2024-12-11 |
| Michael G. Bator | Director | Buy | $100K | 2023-12-13 |
| Efthymios Deliargyris | Chief Medical Officer | Buy | $30K | 2023-12-13 |
| Jiny Kim | Director | Buy | $10K | 2023-12-13 |
| Vincent Capponi | President | Buy | $25K | 2023-12-13 |
| Phillip P. Chan | CEO | Buy | $200K | 2023-12-13 |
| Michael G. Bator | Director | Buy | $10K | 2023-08-04 |
| Kathleen P. Bloch | Interim CFO | Buy | $6K | 2023-05-25 |