🕵️ Cytosorbents Corp ($CTSO)
SEC insider & ownership activity, last 12 months · CIK 1175151 · every row links its SEC filing
Over the last 12 months insiders bought $269K with no open-market selling against it. Phillip P. Chan bought $198K (Jun–Sep). 3 red-flag 8-Ks in the window, most recently Delisting notice (3.01), Jun 29, 2026.
Monthly net open-market insider flow, last 12 months (up = net buying)
Insider flow
4 buyers, $269K (10 lots) · 0 sellers, $0 (0 lots)
| Insider | Buys | Bought | Sells | Sold | Last |
|---|---|---|---|---|---|
| Phillip P. Chan | 4 | $198K | 0 | – | Sep 15, 2026 |
| Peter J. Mariani | 1 | $44K | 0 | – | Jun 15, 2026 |
| Alan D. Sobel | 3 | $15K | 0 | – | Sep 15, 2026 |
| Capponi Vincent | 2 | $13K | 0 | – | Sep 14, 2026 |
5%+ holders
| Holder | Stake | Class | Schedule | Event | |
|---|---|---|---|---|---|
| Avenir Corp | 8.3% | 13G | Feb 13, 2026 | filing ↗ | |
| James H. Rooney | 8.3% | 13G | Feb 13, 2026 | filing ↗ | |
| Thomas A. Satterfield, JR. | 6.6% | 13G | Jan 17, 2025 | filing ↗ | |
| Avenue Capital Management II, L.P. | 5.7% | 13G | May 28, 2025 | filing ↗ | |
| Marc Lasry | 5.7% | 13G | May 28, 2025 | filing ↗ | |
| James H. Rooney | 5.7% | 13G | Feb 14, 2025 | filing ↗ |
Planned insider sales (Form 144)
No sale notices filed in the last 12 months.
Material events (8-K)
| Item | Event date | |
|---|---|---|
| Charter/bylaw changes (5.03) | Sep 8, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Sep 8, 2026 | filing ↗ |
| Shareholder vote (5.07) | Aug 13, 2026 | filing ↗ |
| Reg FD disclosure (7.01) | Aug 6, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Aug 6, 2026 | filing ↗ |
| Earnings (2.02) | Aug 6, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Aug 6, 2026 | filing ↗ |
| Delisting notice (3.01) | Jun 29, 2026 | filing ↗ |
| Reg FD disclosure (7.01) | Jun 24, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Jun 24, 2026 | filing ↗ |
| Earnings (2.02) | May 13, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | May 13, 2026 | filing ↗ |
| Delisting notice (3.01) | Apr 1, 2026 | filing ↗ |
| Earnings (2.02) | Mar 25, 2026 | filing ↗ |
| Reg FD disclosure (7.01) | Mar 25, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Mar 25, 2026 | filing ↗ |
| Earnings (2.02) | Nov 13, 2025 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Nov 13, 2025 | filing ↗ |
| Delisting notice (3.01) | Oct 2, 2025 | filing ↗ |