Through the 90-day period concluding February 19, 2026, Cytosorbents's top three insider stakeholders include Chief Executive Officer Phillip P. Chan (1.48Mn shares), President And Coo Vincent Capponi (766.27K shares), Chief Financial Officer Kathleen P. Bloch (579.94K shares).
| Holder | Position | Shares | Report Date |
|---|---|---|---|
| Phillip P. Chan | Chief Executive Officer | 1,482,963 | 20 Nov, 2025 |
| Vincent Capponi | President And Coo | 766,268 | 08 Aug, 2025 |
| Kathleen P. Bloch | Chief Financial Officer | 579,941 | 04 Apr, 2024 |
| Peter J Mariani | Chief Financial Officer | 538,113 | 08 Aug, 2025 |
| Efthymios Deliargyris | Chief Medical Officer | 473,025 | 08 Aug, 2025 |
| Michael G. Bator | 151,273 | 04 Mar, 2025 | |
| Alan D. Sobel | 145,757 | 26 Feb, 2025 | |
| Al Kraus | 142,046 | 08 Feb, 2023 | |
| Edward Raymond Jones | 88,834 | 15 Dec, 2023 | |
| Jiny Kim | 77,819 | 15 Dec, 2023 |
* Please note that the shares above only reflect shares from the fund portfolio and the institutional portfolio. Shares from the personal portfolio are excluded from this Institutional Ownership Page. See these insiders' latest transactions here on Insider Page.
| Transaction Date | Insider Name | Security Class | Transaction Type | Shares Traded | Price | Shares Remaining | Ownership | Code |
|---|---|---|---|---|---|---|---|---|
| 18 Nov, 2025 | Phillip P. Chan | Common Stock | A | 100,000 | $0.64 | 1,482,963 | D | A |
| 08 Aug, 2025 | Peter J Mariani | Common Stock | A | 71,500 | $0.00 | 538,113 | D | A |
| 08 Aug, 2025 | Vincent Capponi | Common Stock | A | 89,100 | $0.00 | 766,268 | D | A |
| 08 Aug, 2025 | Vincent Capponi | - | - | 766,268 | D | |||
| 08 Aug, 2025 | Phillip P. Chan | Common Stock | A | 105,600 | $0.00 | 1,382,963 | D | A |
| 08 Aug, 2025 | Efthymios Deliargyris | Common Stock | A | 70,000 | $0.00 | 473,025 | D | A |
| 24 Feb, 2025 | Peter J Mariani | Common Stock | A | 32,625 | $1.13 | 466,613 | D | O |
| 24 Feb, 2025 | Vincent Capponi | Common Stock | A | 12,000 | $1.13 | 677,168 | D | O |
| 24 Feb, 2025 | Phillip P. Chan | Common Stock | A | 34,168 | $1.13 | 1,277,363 | D | O |
| 24 Feb, 2025 | Alan D. Sobel | Common Stock | A | 21,950 | $1.13 | 145,757 | D | O |
| 24 Feb, 2025 | Michael G. Bator | Common Stock | A | 10,000 | $1.13 | 151,273 | D | O |
| 17 Jan, 2025 | Peter J Mariani | Common Stock | A | 32,625 | $1.00 | 433,988 | D | X |
| 17 Jan, 2025 | Vincent Capponi | Common Stock | A | 31,760 | $1.00 | 665,168 | D | X |
| 17 Jan, 2025 | Phillip P. Chan | Common Stock | A | 90,832 | $1.00 | 1,243,195 | D | X |
| 17 Jan, 2025 | Alan D. Sobel | - | - | 123,807 | D | |||
| 17 Jan, 2025 | Alan D. Sobel | Common Stock | A | 21,950 | $1.00 | 123,807 | D | X |
| 17 Jan, 2025 | Michael G. Bator | Common Stock | A | 15,879 | $1.00 | 141,273 | D | X |
| 17 Jan, 2025 | Efthymios Deliargyris | Common Stock | A | 16,233 | $1.00 | 403,025 | D | X |
| 13 Dec, 2024 | Peter J Mariani | Common Stock | A | 20,000 | $0.96 | 401,363 | D | P |
| 12 Dec, 2024 | Peter J Mariani | Common Stock | A | 20,000 | $0.89 | 381,363 | D | P |