Cytosorbents Corp — Insider Transactions
Form 4 filings by directors, officers, and 10%+ shareholders
SEC rules require corporate insiders — including directors, executive officers, and any shareholder owning more than 10% of a company's shares — to report changes in their ownership within two business days of a transaction. These disclosures are filed as Form 4. Open-market purchases (code P) are generally considered the most meaningful signal, as insiders are spending their own money.
| Insider | Title | Type | Shares | Price | Value | Owns After | Date |
|---|---|---|---|---|---|---|---|
| Chan Phillip P. | Chief Executive Officer | Award / Grant | 100,000 | $0.64 | $64,000 | 1,482,963 | Nov 18, 2025 |
| Chan Phillip P. | Chief Executive Officer | Award / Grant | 105,600 | — | — | 1,382,963 | Aug 8, 2025 |
| MARIANI PETER J | Chief Financial Officer | Award / Grant | 71,500 | — | — | 538,113 | Aug 8, 2025 |
| Capponi Vincent | President and COO | Award / Grant | 89,100 | — | — | 766,268 | Aug 8, 2025 |
| Deliargyris Efthymios | Chief Medical Officer | Award / Grant | 70,000 | — | — | 473,025 | Aug 8, 2025 |
| BATOR MICHAEL G. | — | O | 10,000 | $1.13 | $11,300 | 151,273 | Feb 24, 2025 |
| Capponi Vincent | President and COO | O | 12,000 | $1.13 | $13,560 | 677,168 | Feb 24, 2025 |
| MARIANI PETER J | Chief Financial Officer | O | 32,625 | $1.13 | $36,866 | 466,613 | Feb 24, 2025 |
| Chan Phillip P. | Chief Executive Officer | O | 34,168 | $1.13 | $38,610 | 1,277,363 | Feb 24, 2025 |
| Sobel Alan D. | — | O | 21,950 | $1.13 | $24,803 | 145,757 | Feb 24, 2025 |
| BATOR MICHAEL G. | — | X | 15,879 | $1.00 | $15,879 | 141,273 | Jan 17, 2025 |
| Capponi Vincent | President and COO | X | 31,760 | $1.00 | $31,760 | 665,168 | Jan 17, 2025 |
| Deliargyris Efthymios | Chief Medical Officer | X | 16,233 | $1.00 | $16,233 | 403,025 | Jan 17, 2025 |
| Sobel Alan D. | — | X | 21,950 | $1.00 | $21,950 | 123,807 | Jan 17, 2025 |
| Chan Phillip P. | Chief Executive Officer | X | 90,832 | $1.00 | $90,832 | 1,243,195 | Jan 17, 2025 |
| MARIANI PETER J | Chief Financial Officer | X | 32,625 | $1.00 | $32,625 | 433,988 | Jan 17, 2025 |
| MARIANI PETER J | Chief Financial Officer | Purchase | 20,000 | $0.96 | $19,200 | 401,363 | Dec 13, 2024 |
| MARIANI PETER J | Chief Financial Officer | Purchase | 20,000 | $0.89 | $17,800 | 381,363 | Dec 11, 2024 |
| MARIANI PETER J | Chief Financial Officer | Award / Grant | 110,000 | — | — | 110,000 | Aug 14, 2024 |
| Deliargyris Efthymios | Chief Medical Officer | Award / Grant | 61,000 | — | — | 409,433 | Apr 2, 2024 |
| BLOCH KATHLEEN P. | Chief Financial Officer | Award / Grant | 65,000 | — | — | 532,941 | Apr 2, 2024 |
| Capponi Vincent | President and COO | Award / Grant | 81,000 | — | — | 665,134 | Apr 2, 2024 |
| Chan Phillip P. | Chief Executive Officer | Award / Grant | 96,000 | — | — | 1,164,704 | Apr 2, 2024 |
| Sobel Alan D. | — | Purchase | 22,557 | $1.33 | $30,001 | 101,857 | Dec 13, 2023 |
| Deliargyris Efthymios | Chief Medical Officer | Purchase | 22,557 | $1.33 | $30,001 | 348,433 | Dec 13, 2023 |
| Capponi Vincent | President & COO | Purchase | 18,797 | $1.33 | $25,000 | 584,134 | Dec 13, 2023 |
| BATOR MICHAEL G. | — | Purchase | 37,594 | $1.33 | $50,000 | 125,394 | Dec 13, 2023 |
| Jones Edward Raymond | — | Purchase | 7,519 | $1.33 | $10,000 | 88,834 | Dec 13, 2023 |
| BLOCH KATHLEEN P. | Chief Financial Officer | Purchase | 37,594 | $1.33 | $50,000 | 467,941 | Dec 13, 2023 |
| Kim Jiny | — | Purchase | 7,519 | $1.33 | $10,000 | 77,819 | Dec 13, 2023 |
| Chan Phillip P. | Chief Executive Officer | Purchase | 75,188 | $1.33 | $100,000 | 1,068,704 | Dec 13, 2023 |
| BLOCH KATHLEEN P. | Chief Financial Officer | Award / Grant | 45,000 | — | — | 442,347 | Sep 18, 2023 |
| BATOR MICHAEL G. | — | Purchase | 1,000 | $3.23 | $3,230 | 85,800 | Aug 7, 2023 |
| Chan Phillip P. | Chief Executive Officer | Award / Grant | 87,000 | — | — | 1,006,548 | Jul 7, 2023 |
| Capponi Vincent | President & COO | Award / Grant | 73,000 | — | — | 576,153 | Jul 7, 2023 |
| Deliargyris Efthymios | Chief Medical Officer | Award / Grant | 55,000 | — | — | 331,648 | Jul 7, 2023 |
| BLOCH KATHLEEN P. | Interim CFO | Purchase | 1,100 | $2.85 | $3,135 | 47,000 | May 25, 2023 |
| BLOCH KATHLEEN P. | Interim CFO | Purchase | 2,000 | $3.13 | $6,260 | 40,700 | May 10, 2023 |
| Capponi Vincent | See Remarks | Option Exercise | 10,000 | $2.88 | $28,800 | 511,989 | Apr 4, 2023 |
| Chan Phillip P. | Chief Executive Officer | Option Exercise | 30,500 | $2.88 | $87,840 | 927,779 | Apr 3, 2023 |
| Sobel Alan D. | — | Gift | 2,000 | — | — | 81,300 | Feb 27, 2023 |
| Kraus Al | — | Option Exercise | 12,000 | $2.65 | $31,800 | 142,046 | Feb 6, 2023 |
| Chan Phillip P. | Chief Executive Officer | Purchase | 5,859 | $1.26 | $7,382 | 897,279 | Dec 8, 2022 |
| Chan Phillip P. | Chief Executive Officer | Purchase | 14,291 | $1.26 | $18,007 | 881,570 | Dec 7, 2022 |
| Chan Phillip P. | Chief Executive Officer | Purchase | 35,000 | $1.70 | $59,500 | 867,279 | Sep 8, 2022 |
| Deliargyris Efthymios | Chief Medical Officer | Award / Grant | 55,000 | — | — | 228,384 | Aug 10, 2022 |
| Capponi Vincent | President and COO | Award / Grant | 69,000 | — | — | 512,545 | Aug 10, 2022 |
| BLOCH KATHLEEN P. | Chief Financial Officer | Award / Grant | 55,500 | — | — | 405,161 | Aug 10, 2022 |
| Chan Phillip P. | Chief Executive Officer | Award / Grant | 79,000 | — | — | 845,130 | Aug 10, 2022 |
| Capponi Vincent | President and COO | Purchase | 2,000 | $1.80 | $3,600 | 443,545 | Jun 21, 2022 |