CTSO Cytosorbents Corp
Nasdaq · SEC CIK 1175151 · EDGAR
- Bought, last 12 months
- $269.3K 6 purchases by 4 insiders
- Sold, last 12 months
- $0 0 sales by 0 insiders
- Filings on record
- 97 since 2021-09-02, latest 2026-09-16 17:30
BoughtSold
Most active insiders, 12 months
| Insider | Title | Bought | Sold |
|---|---|---|---|
| Chan Phillip P. | CEO, Dir | $197.5K | — |
| MARIANI PETER J | CFO | $44.0K | — |
| Sobel Alan D. | Dir | $15.3K | — |
| Capponi Vincent | Pres, COO | $12.5K | — |
Transactions 76
| X | Filed | Traded | Ticker | Insider | Title | Type | Price | Qty | Owned | ΔOwn | Value |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026-09-16 17:30 | 2026-09-15 | CTSO | Chan Phillip P. | CEO, Dir | P - Purchase | $6.00 | +3,774 | 101.0K | +4% | +$22.6K | |
| M | 2026-09-16 16:05 | 2026-09-14 | CTSO | Capponi Vincent | Pres, COO | P - Purchase | $6.05 | +2,073 | 40.4K | +5% | +$12.5K |
| M | 2026-09-16 16:05 | 2026-09-15 | CTSO | Sobel Alan D. | Dir | P - Purchase | $6.10 | +2,500 | 9,887 | +34% | +$15.3K |
| 2026-09-09 16:05 | 2026-09-04 | CTSO | Chan Phillip P. | CEO, Dir | P - Purchase | $0.35 | +200.0K | 1.94M | +11% | +$70.0K | |
| 2026-06-16 07:00 | 2026-06-15 | CTSO | MARIANI PETER J | CFO | P - Purchase | $0.44 | +100.0K | 638.1K | +19% | +$44.0K | |
| M | 2026-06-15 18:24 | 2026-06-12+ | CTSO | Chan Phillip P. | CEO, Dir | P - Purchase | $0.4012 | +261.5K | 1.74M | +18% | +$104.9K |
| 2025-11-20 | 2025-11-18 | CTSO | Chan Phillip P. | CEO, Dir | A - Grant | $0.64 | +100.0K | 1.48M | +7% | +$64.0K | |
| D | 2025-08-08 | 2025-08-08 | CTSO | Deliargyris Efthymios | Chief Medical Off | A - Grant | $0.00 | +70.0K | 473.0K | +17% | $0 |
| D | 2025-08-08 | 2025-08-08 | CTSO | Chan Phillip P. | CEO, Dir | A - Grant | $0.00 | +105.6K | 1.38M | +8% | $0 |
| D | 2025-08-08 | 2025-08-08 | CTSO | Capponi Vincent | Pres, COO | A - Grant | $0.00 | +89.1K | 766.3K | +13% | $0 |
| D | 2025-08-08 | 2025-08-08 | CTSO | MARIANI PETER J | CFO | A - Grant | $0.00 | +71.5K | 538.1K | +15% | $0 |
| D | 2025-03-04 | 2025-02-24 | CTSO | BATOR MICHAEL G. | Dir | O - OTM Ex | $1.13 | +10.0K | 151.3K | +7% | +$11.3K |
| D | 2025-02-26 | 2025-02-24 | CTSO | MARIANI PETER J | CFO | O - OTM Ex | $1.13 | +32.6K | 466.6K | +8% | +$36.9K |
| D | 2025-02-26 | 2025-02-24 | CTSO | Capponi Vincent | Pres, COO | O - OTM Ex | $1.13 | +12.0K | 677.2K | +2% | +$13.6K |
| D | 2025-02-26 | 2025-02-24 | CTSO | Chan Phillip P. | CEO, Dir | O - OTM Ex | $1.13 | +34.2K | 1.28M | +3% | +$38.6K |
| D | 2025-02-26 | 2025-02-24 | CTSO | Sobel Alan D. | Dir | O - OTM Ex | $1.13 | +21.9K | 145.8K | +18% | +$24.8K |
| D | 2025-01-22 | 2025-01-17 | CTSO | Chan Phillip P. | CEO, Dir | X - OptEx | $1.00 | +90.8K | 1.24M | +8% | +$90.8K |
| D | 2025-01-22 | 2025-01-17 | CTSO | Deliargyris Efthymios | Chief Medical Off | X - OptEx | $1.00 | +16.2K | 403.0K | +4% | +$16.2K |
| D | 2025-01-22 | 2025-01-17 | CTSO | MARIANI PETER J | CFO | X - OptEx | $1.00 | +32.6K | 434.0K | +8% | +$32.6K |
| D | 2025-01-22 | 2025-01-17 | CTSO | Sobel Alan D. | Dir | X - OptEx | $1.00 | +21.9K | 123.8K | +22% | +$21.9K |
| D | 2025-01-22 | 2025-01-17 | CTSO | Capponi Vincent | Pres, COO | X - OptEx | $1.00 | +31.8K | 665.2K | +5% | +$31.8K |
| D | 2025-01-22 | 2025-01-17 | CTSO | BATOR MICHAEL G. | Dir | X - OptEx | $1.00 | +15.9K | 141.3K | +13% | +$15.9K |
| 2024-12-16 | 2024-12-13 | CTSO | MARIANI PETER J | CFO | P - Purchase | $0.96 | +20.0K | 401.4K | +5% | +$19.2K | |
| M | 2024-12-13 | 2024-12-11+ | CTSO | MARIANI PETER J | CFO | P - Purchase | $0.89 | +31.4K | 381.4K | +9% | +$27.9K |
| DM | 2024-08-16 | 2024-08-14 | CTSO | MARIANI PETER J | CFO | A - Grant | $0.00 | +350.0K | 110.0K | New | $0 |
| D | 2024-04-04 | 2024-04-02 | CTSO | BLOCH KATHLEEN P. | CFO | A - Grant | $0.00 | +65.0K | 532.9K | +14% | $0 |
| D | 2024-04-04 | 2024-04-02 | CTSO | Chan Phillip P. | CEO, Dir | A - Grant | $0.00 | +96.0K | 1.16M | +9% | $0 |
| D | 2024-04-04 | 2024-04-02 | CTSO | Deliargyris Efthymios | Chief Medical Off | A - Grant | $0.00 | +61.0K | 409.4K | +18% | $0 |
| D | 2024-04-04 | 2024-04-02 | CTSO | Capponi Vincent | Pres, COO | A - Grant | $0.00 | +81.0K | 665.1K | +14% | $0 |
| D | 2023-12-15 | 2023-12-13 | CTSO | Sobel Alan D. | Dir | P - Purchase | $1.33 | +22.6K | 101.9K | +28% | +$30.0K |
| D | 2023-12-15 | 2023-12-13 | CTSO | Deliargyris Efthymios | Chief Medical Off | P - Purchase | $1.33 | +22.6K | 348.4K | +7% | +$30.0K |
| D | 2023-12-15 | 2023-12-13 | CTSO | Chan Phillip P. | CEO, Dir | P - Purchase | $1.33 | +75.2K | 1.07M | +8% | +$100.0K |
| D | 2023-12-15 | 2023-12-13 | CTSO | BATOR MICHAEL G. | Dir | P - Purchase | $1.33 | +37.6K | 125.4K | +43% | +$50.0K |
| D | 2023-12-15 | 2023-12-13 | CTSO | Kim Jiny | Dir | P - Purchase | $1.33 | +7,519 | 77.8K | +11% | +$10.0K |
| D | 2023-12-15 | 2023-12-13 | CTSO | Jones Edward Raymond | Dir | P - Purchase | $1.33 | +7,519 | 88.8K | +9% | +$10.0K |
| D | 2023-12-15 | 2023-12-13 | CTSO | BLOCH KATHLEEN P. | CFO | P - Purchase | $1.33 | +37.6K | 467.9K | +9% | +$50.0K |
| D | 2023-12-15 | 2023-12-13 | CTSO | Capponi Vincent | Pres, COO | P - Purchase | $1.33 | +18.8K | 584.1K | +3% | +$25.0K |
| D | 2023-09-20 | 2023-09-18 | CTSO | BLOCH KATHLEEN P. | CFO | A - Grant | $0.00 | +45.0K | 442.3K | +11% | $0 |
| M | 2023-08-08 | 2023-08-04+ | CTSO | BATOR MICHAEL G. | Dir | P - Purchase | $3.19 | +3,000 | 85.8K | +4% | +$9,580 |
| D | 2023-07-11 | 2023-07-07 | CTSO | Capponi Vincent | Pres, COO | A - Grant | $0.00 | +73.0K | 576.2K | +15% | $0 |
| D | 2023-07-11 | 2023-07-07 | CTSO | Deliargyris Efthymios | Chief Medical Off | A - Grant | $0.00 | +55.0K | 331.6K | +20% | $0 |
| D | 2023-07-11 | 2023-07-07 | CTSO | Chan Phillip P. | CEO, Dir | A - Grant | $0.00 | +87.0K | 1.01M | +9% | $0 |
| MI | 2023-05-30 | 2023-05-25 | CTSO | BLOCH KATHLEEN P. | Interim CFO | P - Purchase | $2.85 | +3,300 | 47.0K | +8% | +$9,394 |
| MI | 2023-05-12 | 2023-05-10 | CTSO | BLOCH KATHLEEN P. | Interim CFO | P - Purchase | $3.11 | +10.0K | 40.7K | +33% | +$31.1K |
| D | 2023-04-05 | 2023-04-04 | CTSO | Capponi Vincent | See Remarks | M - OptEx | $2.88 | +10.0K | 512.0K | +2% | +$28.8K |
| D | 2023-04-05 | 2023-04-03 | CTSO | Chan Phillip P. | CEO | M - OptEx | $2.88 | +30.5K | 927.8K | +3% | +$87.8K |
| I | 2023-03-01 | 2023-02-27 | CTSO | Sobel Alan D. | Dir | G - Gift | $0.00 | -2,000 | 0 | -100% | $0 |
| 2023-03-01 | 2023-02-27 | CTSO | Sobel Alan D. | Dir | G - Gift | $0.00 | +2,000 | 81.3K | +3% | $0 | |
| D | 2023-02-08 | 2023-02-06 | CTSO | Kraus Al | Dir | M - OptEx | $2.65 | +12.0K | 142.0K | +9% | +$31.8K |
| 2022-12-09 | 2022-12-08 | CTSO | Chan Phillip P. | CEO, Dir | P - Purchase | $1.26 | +5,859 | 897.3K | +0.7% | +$7,382 | |
| M | 2022-12-08 | 2022-12-06+ | CTSO | Chan Phillip P. | CEO, Dir | P - Purchase | $1.26 | +24.1K | 881.6K | +3% | +$30.4K |
| 2022-09-12 | 2022-09-08 | CTSO | Chan Phillip P. | CEO, Dir | P - Purchase | $1.70 | +35.0K | 867.3K | +4% | +$59.5K | |
| 2022-08-26 | 2022-08-25 | CTSO | Dir | P - Purchase | $1.91 | +1,000 | 70.3K | +1% | +$1,910 | ||
| D | 2022-08-12 | 2022-08-10 | CTSO | Capponi Vincent | Pres, COO | A - Grant | $0.00 | +69.0K | 512.5K | +16% | $0 |
| D | 2022-08-12 | 2022-08-10 | CTSO | Chan Phillip P. | CEO, Dir | A - Grant | $0.00 | +79.0K | 845.1K | +10% | $0 |
| DM | 2022-08-12 | 2022-08-10 | CTSO | Deliargyris Efthymios | Chief Medical Off | A - Grant | $0.00 | +107.0K | 228.4K | +88% | $0 |
| D | 2022-08-12 | 2022-08-10 | CTSO | BLOCH KATHLEEN P. | CFO | A - Grant | $0.00 | +55.5K | 405.2K | +16% | $0 |
| 2022-06-22 | 2022-06-21 | CTSO | Capponi Vincent | Pres, COO | P - Purchase | $1.80 | +2,000 | 443.5K | +0.5% | +$3,600 | |
| 2022-06-21 | 2022-06-16 | CTSO | Chan Phillip P. | CEO, Dir | P - Purchase | $1.85 | +2,221 | 768.4K | +0.3% | +$4,109 | |
| 2022-06-21 | 2022-06-16 | CTSO | Capponi Vincent | See Remarks | P - Purchase | $2.00 | +3,000 | 441.5K | +0.7% | +$6,000 | |
| 2022-06-10 | 2022-06-09 | CTSO | Chan Phillip P. | CEO, Dir | P - Purchase | $2.17 | +16.0K | 766.1K | +2% | +$34.7K | |
| I | 2022-06-06 | 2022-06-06 | CTSO | BLOCH KATHLEEN P. | CFO | P - Purchase | $1.90 | +8,700 | 33.7K | +35% | +$16.5K |
| M | 2022-05-25 | 2022-05-23 | CTSO | Capponi Vincent | Pres, COO | P - Purchase | $2.03 | +5,000 | 435.4K | +1% | +$10.2K |
| M | 2022-05-19 | 2022-05-18 | CTSO | BATOR MICHAEL G. | Dir | P - Purchase | $2.19 | +11.0K | 83.8K | +15% | +$24.1K |
| 2022-05-17 | 2022-05-16 | CTSO | Jones Edward Raymond | Dir | P - Purchase | $2.24 | +1,676 | 81.3K | +2% | +$3,754 | |
| M | 2022-05-12 | 2022-05-11 | CTSO | Sobel Alan D. | Dir | P - Purchase | $2.02 | +10.0K | 70.5K | +17% | +$20.2K |
| 2022-05-09 | 2022-05-06 | CTSO | Kraus Al | Dir | P - Purchase | $1.96 | +5,000 | 130.0K | +4% | +$9,800 | |
| D | 2022-04-05 | 2022-04-05 | CTSO | Kim Jiny | Dir | A - Grant | $0.00 | +69.3K | 69.3K | New | $0 |
| I | 2022-02-15 | 2022-02-14 | CTSO | Sobel Alan D. | Dir | G - Gift | $0.00 | +2,000 | 2,000 | New | $0 |
| M | 2022-01-03 | 2021-12-29+ | CTSO | Chan Phillip P. | CEO | P - Purchase | $4.05 | +15.0K | 768.4K | +2% | +$60.7K |
| D | 2021-12-13 | 2021-12-09 | CTSO | Jones Edward Raymond | Dir | M - OptEx | $4.13 | +4,000 | 82.8K | +5% | +$16.5K |
| D | 2021-12-13 | 2021-12-09 | CTSO | Jones Edward Raymond | Dir | F - Tax | $5.22 | -3,161 | 79.6K | -4% | -$16.5K |
| 2021-12-13 | 2021-12-10 | CTSO | Chan Phillip P. | CEO | P - Purchase | $5.25 | +5,000 | 753.4K | +0.7% | +$26.2K | |
| I | 2021-11-26 | 2021-11-23 | CTSO | BLOCH KATHLEEN P. | CFO | P - Purchase | $4.98 | +4,000 | 25.0K | +19% | +$19.9K |
| D | 2021-09-02 | 2021-08-31 | CTSO | Kraus Al | Dir | M - OptEx | $4.13 | +4,000 | 129.0K | +3% | +$16.5K |
| D | 2021-09-02 | 2021-08-31 | CTSO | Kraus Al | Dir | S - Sale+OE | $9.40 | -4,000 | 125.0K | -3% | -$37.6K |
Purchase Sale Sale after option exercise All abbreviations