DFTX Definium Therapeutics, Inc.
Nasdaq · SEC CIK 1813814 · EDGAR
- Bought, last 12 months
- $0 0 purchases by 0 insiders
- Sold, last 12 months
- $5.13M 15 sales by 5 insiders
- Filings on record
- 162 since 2022-01-19, latest 2026-09-18 21:55
BoughtSold
Most active insiders, 12 months
| Insider | Title | Bought | Sold |
|---|---|---|---|
| Barrow Robert | CEO, Dir | — | $3.08M |
| Sullivan Mark | CLO | — | $1.04M |
| Karlin Daniel | Chief Medical Off | — | $748.9K |
| Roberts Brandi | CFO | — | $135.7K |
| Wiley Matthew T. | Chief Commercial Off | — | $129.1K |
| Adsett Roger | Dir | — | — |
| CRYSTAL ROGER | Dir | — | — |
| Bruhn Suzanne Louise | Dir | — | — |
| Krebs Andreas | Dir | — | — |
| Vallone Carol A | Dir | — | — |
Transactions 145
| X | Filed | Traded | Ticker | Insider | Title | Type | Price | Qty | Owned | ΔOwn | Value |
|---|---|---|---|---|---|---|---|---|---|---|---|
| D | 2026-09-18 21:55 | 2026-09-18 | DFTX | Vallone Carol A | Dir | M - OptEx | $35.52 | +1,086 | 22.3K | +5% | +$38.6K |
| D | 2026-09-18 21:55 | 2026-09-18 | DFTX | Krebs Andreas | Dir | M - OptEx | $35.52 | +1,629 | 21.4K | +8% | +$57.9K |
| 2026-09-14 08:30 | 2026-09-14 | DFTX | Karlin Daniel | Chief Medical Off | A - Grant | $0.00 | +200.0K | 803.7K | +33% | $0 | |
| 2026-09-14 08:30 | 2026-09-14 | DFTX | Wiley Matthew T. | Chief Commercial Off | A - Grant | $0.00 | +125.0K | 362.1K | +53% | $0 | |
| 2026-09-14 08:30 | 2026-09-14 | DFTX | Sullivan Mark | CLO | A - Grant | $0.00 | +125.0K | 508.3K | +33% | $0 | |
| 2026-09-14 08:30 | 2026-09-14 | DFTX | Roberts Brandi | CFO | A - Grant | $0.00 | +125.0K | 397.9K | +46% | $0 | |
| 2026-09-14 08:30 | 2026-09-14 | DFTX | Barrow Robert | CEO, Dir | A - Grant | $0.00 | +750.0K | 2.24M | +50% | $0 | |
| T | 2026-09-04 21:30 | 2026-09-02 | DFTX | Barrow Robert | CEO, Dir | A - Grant | $0.00 | +40.0K | 1.51M | +3% | $0 |
| T | 2026-09-04 21:30 | 2026-09-03 | DFTX | Barrow Robert | CEO, Dir | S - Sale | $37.94 | -19.0K | 1.49M | -1% | -$721.7K |
| 2026-08-12 08:30 | 2026-08-12 | DFTX | Barrow Robert | CEO, Dir | A - Grant | $0.00 | +375.0K | 1.47M | +34% | $0 | |
| 2026-08-12 08:30 | 2026-08-12 | DFTX | Karlin Daniel | Chief Medical Off | A - Grant | $0.00 | +100.0K | 603.3K | +20% | $0 | |
| 2026-08-12 08:30 | 2026-08-12 | DFTX | Sullivan Mark | CLO | A - Grant | $0.00 | +62.5K | 383.1K | +19% | $0 | |
| 2026-08-12 08:30 | 2026-08-12 | DFTX | Wiley Matthew T. | Chief Commercial Off | A - Grant | $0.00 | +62.5K | 237.1K | +36% | $0 | |
| 2026-08-12 08:30 | 2026-08-12 | DFTX | Roberts Brandi | CFO | A - Grant | $0.00 | +62.5K | 272.0K | +30% | $0 | |
| T | 2026-06-26 16:30 | 2026-06-25 | DFTX | Sullivan Mark | CLO | S - Sale | $45.03 | -13.0K | 320.6K | -4% | -$585.8K |
| T | 2026-06-26 16:30 | 2026-06-25 | DFTX | Roberts Brandi | CFO | S - Sale | $45.03 | -3,013 | 209.5K | -1% | -$135.7K |
| T | 2026-06-26 16:30 | 2026-06-25 | DFTX | Barrow Robert | CEO, Dir | S - Sale | $45.03 | -29.2K | 1.10M | -3% | -$1.32M |
| T | 2026-06-26 16:30 | 2026-06-25 | DFTX | Karlin Daniel | Chief Medical Off | S - Sale | $45.03 | -10.0K | 503.3K | -2% | -$451.9K |
| T | 2026-06-26 16:30 | 2026-06-25 | DFTX | Wiley Matthew T. | Chief Commercial Off | S - Sale | $45.03 | -2,867 | 174.6K | -2% | -$129.1K |
| 2026-06-22 09:45 | 2026-06-22 | DFTX | Wiley Matthew T. | Chief Commercial Off | A - Grant | $0.00 | +62.5K | 177.5K | +54% | $0 | |
| 2026-06-22 09:45 | 2026-06-22 | DFTX | Barrow Robert | CEO, Dir | A - Grant | $0.00 | +375.0K | 1.13M | +50% | $0 | |
| 2026-06-22 09:45 | 2026-06-22 | DFTX | Sullivan Mark | CLO | A - Grant | $0.00 | +62.5K | 333.6K | +23% | $0 | |
| 2026-06-22 09:45 | 2026-06-22 | DFTX | Roberts Brandi | CFO | A - Grant | $0.00 | +62.5K | 212.5K | +42% | $0 | |
| 2026-06-22 09:45 | 2026-06-22 | DFTX | Karlin Daniel | Chief Medical Off | A - Grant | $0.00 | +100.0K | 513.3K | +24% | $0 | |
| D | 2026-06-15 16:30 | 2026-06-11 | DFTX | CRYSTAL ROGER | Dir | A - Grant | $0.00 | +4,666 | 24.3K | +24% | $0 |
| D | 2026-06-15 16:30 | 2026-06-11 | DFTX | GRYSKA DAVID W | Dir | A - Grant | $0.00 | +4,666 | 19.9K | +31% | $0 |
| D | 2026-06-15 16:30 | 2026-06-11 | DFTX | Vallone Carol A | Dir | A - Grant | $0.00 | +4,666 | 21.2K | +28% | $0 |
| D | 2026-06-15 16:30 | 2026-06-11 | DFTX | Krebs Andreas | Dir | A - Grant | $0.00 | +4,666 | 19.8K | +31% | $0 |
| D | 2026-06-15 16:30 | 2026-06-11 | DFTX | Adsett Roger | Dir | A - Grant | $0.00 | +3,555 | 3,555 | New | $0 |
| D | 2026-06-15 16:30 | 2026-06-11 | DFTX | Bruhn Suzanne Louise | Dir | A - Grant | $0.00 | +4,666 | 24.3K | +24% | $0 |
| T | 2026-03-26 | 2026-03-25 | DFTX | Sullivan Mark | CLO | S - Sale | $18.47 | -10.7K | 271.1K | -4% | -$197.7K |
| T | 2026-03-26 | 2026-03-25 | DFTX | Karlin Daniel | Chief Medical Off | S - Sale | $18.47 | -8,018 | 413.3K | -2% | -$148.1K |
| T | 2026-03-26 | 2026-03-25 | DFTX | Barrow Robert | CEO, Dir | S - Sale | $18.47 | -24.4K | 752.5K | -3% | -$451.2K |
| 2026-02-05 | 2026-02-03 | DFTX | Roberts Brandi | CFO | A - Grant | $0.00 | +150.0K | 150.0K | New | $0 | |
| 2026-02-05 | 2026-02-03 | DFTX | Wiley Matthew T. | Chief Commercial Off | A - Grant | $0.00 | +115.0K | 115.0K | New | $0 | |
| 2026-02-05 | 2026-02-03 | DFTX | Sullivan Mark | CLO | A - Grant | $0.00 | +125.0K | 407.6K | +44% | $0 | |
| 2026-02-05 | 2026-02-03 | DFTX | Karlin Daniel | Chief Medical Off | A - Grant | $0.00 | +150.0K | 575.0K | +35% | $0 | |
| 2026-02-05 | 2026-02-03 | DFTX | Barrow Robert | CEO, Dir | A - Grant | $0.00 | +320.0K | 1.10M | +41% | $0 | |
| T | 2025-12-29 | 2025-12-26 | DFTX | Karlin Daniel | Chief Medical Off | S - Sale | $13.15 | -5,600 | 425.0K | -1% | -$73.6K |
| T | 2025-12-29 | 2025-12-26 | DFTX | Sullivan Mark | CLO | S - Sale | $13.15 | -11.3K | 282.6K | -4% | -$148.3K |
| T | 2025-12-29 | 2025-12-26 | DFTX | Barrow Robert | CEO, Dir | S - Sale | $13.15 | -25.8K | 778.5K | -3% | -$339.2K |
| T | 2025-09-26 | 2025-09-25 | DFTX | Karlin Daniel | Chief Medical Off | S - Sale | $9.77 | -7,704 | 430.6K | -2% | -$75.3K |
| T | 2025-09-26 | 2025-09-25 | DFTX | Barrow Robert | CEO, Dir | S - Sale | $9.77 | -25.8K | 804.3K | -3% | -$252.0K |
| T | 2025-09-26 | 2025-09-25 | DFTX | Sullivan Mark | CLO | S - Sale | $9.77 | -11.3K | 293.9K | -4% | -$110.2K |
| T | 2025-06-26 | 2025-06-25 | DFTX | Barrow Robert | CEO, Dir | S - Sale | $6.80 | -26.5K | 830.1K | -3% | -$180.1K |
| T | 2025-06-26 | 2025-06-25 | DFTX | Karlin Daniel | Chief Medical Off | S - Sale | $6.80 | -7,848 | 438.3K | -2% | -$53.4K |
| T | 2025-06-26 | 2025-06-25 | DFTX | Sullivan Mark | CLO | S - Sale | $6.80 | -11.5K | 305.1K | -4% | -$78.1K |
| T | 2025-03-26 | 2025-03-25 | DFTX | Liao Carrie | CAO | S - Sale | $6.74 | -2,347 | 144.9K | -2% | -$15.8K |
| T | 2025-03-26 | 2025-03-25 | DFTX | Barrow Robert | CEO, Dir | S - Sale | $6.74 | -21.2K | 856.6K | -2% | -$142.9K |
| T | 2025-03-26 | 2025-03-25 | DFTX | Sullivan Mark | CLO | S - Sale | $6.74 | -6,576 | 316.6K | -2% | -$44.3K |
| T | 2025-03-26 | 2025-03-25 | DFTX | Karlin Daniel | Chief Medical Off | S - Sale | $6.74 | -6,836 | 446.2K | -2% | -$46.1K |
| 2025-03-13 | 2025-03-12 | DFTX | Karlin Daniel | Chief Medical Off | A - Grant | $0.00 | +115.0K | 453.0K | +34% | $0 | |
| 2025-03-13 | 2025-03-12 | DFTX | Sullivan Mark | CLO | A - Grant | $0.00 | +150.0K | 323.2K | +87% | $0 | |
| 2025-03-13 | 2025-03-12 | DFTX | Liao Carrie | CAO | A - Grant | $0.00 | +50.0K | 142.3K | +54% | $0 | |
| 2025-03-13 | 2025-03-12 | DFTX | Barrow Robert | CEO, Dir | A - Grant | $0.00 | +350.0K | 877.8K | +66% | $0 | |
| 2024-12-27 | 2024-12-26 | DFTX | Sullivan Mark | CLO | S - Sale | $7.43 | -4,519 | 173.2K | -3% | -$33.6K | |
| 2024-12-27 | 2024-12-26 | DFTX | Liao Carrie | CAO | S - Sale | $7.43 | -2,273 | 97.3K | -2% | -$16.9K | |
| 2024-12-27 | 2024-12-26 | DFTX | Barrow Robert | CEO, Dir | S - Sale | $7.43 | -19.1K | 526.7K | -4% | -$142.0K | |
| 2024-12-27 | 2024-12-26 | DFTX | Karlin Dan | Chief Medical Off | S - Sale | $7.43 | -6,643 | 338.0K | -2% | -$49.4K | |
| 2024-12-05 | 2024-12-05 | DFTX | GRYSKA DAVID W | Dir | P - Purchase | $7.17 | +2,500 | 19.9K | +14% | +$17.9K | |
| T | 2024-09-25 | 2024-09-25 | DFTX | Liao Carrie | CAO | S - Sale | $5.98 | -2,352 | 99.5K | -2% | -$14.1K |
| T | 2024-09-25 | 2024-09-25 | DFTX | Karlin Dan | Chief Medical Off | S - Sale | $5.98 | -6,871 | 344.7K | -2% | -$41.1K |
| T | 2024-09-25 | 2024-09-25 | DFTX | Sullivan Mark | CLO | S - Sale | $5.98 | -4,430 | 177.7K | -2% | -$26.5K |
| T | 2024-09-25 | 2024-09-25 | DFTX | Barrow Robert | CEO, Dir | S - Sale | $5.98 | -19.8K | 545.8K | -3% | -$118.2K |
| 2024-08-26 | 2024-08-23 | DFTX | GRYSKA DAVID W | Dir | P - Purchase | $5.98 | +3,500 | 17.4K | +25% | +$20.9K | |
| D | 2024-08-22 | 2024-08-21 | DFTX | Halperin Wernli Miri | Executive Pres | F - Tax | $6.17 | -32.6K | 202.4K | -14% | -$201.1K |
| D | 2024-08-22 | 2024-08-21 | DFTX | Halperin Wernli Miri | Executive Pres | M - OptEx | $3.70 | +50.0K | 235.0K | +27% | +$185.0K |
| M | 2024-08-20 | 2024-08-19+ | DFTX | Barrow Robert | CEO, Dir | P - Purchase | $6.21 | +1,000 | 565.5K | +0.2% | +$6,215 |
| T | 2024-06-25 | 2024-06-25 | DFTX | Sullivan Mark | CLO | S - Sale | $7.22 | -17.9K | 182.1K | -9% | -$128.9K |
| T | 2024-06-25 | 2024-06-25 | DFTX | Barrow Robert | CEO, Dir | S - Sale | $7.22 | -15.7K | 564.5K | -3% | -$113.1K |
| T | 2024-06-25 | 2024-06-25 | DFTX | Karlin Dan | Chief Medical Off | S - Sale | $7.22 | -6,925 | 351.5K | -2% | -$50.0K |
| 2024-03-26 | 2024-03-25 | DFTX | Greenway Schond L. | CFO | F - Tax | $9.78 | -5,560 | 211.1K | -3% | -$54.4K | |
| T | 2024-03-26 | 2024-03-25 | DFTX | Barrow Robert | CEO, Dir | S - Sale | $9.50 | -16.5K | 580.2K | -3% | -$156.9K |
| T | 2024-03-26 | 2024-03-25 | DFTX | Karlin Dan | Chief Medical Off | S - Sale | $9.50 | -6,578 | 358.5K | -2% | -$62.5K |
| 2023-12-26 | 2023-12-26 | DFTX | Barrow Robert | CEO, Dir | S - Sale | $3.63 | -13.2K | 596.7K | -2% | -$48.1K | |
| 2023-12-26 | 2023-12-26 | DFTX | Greenway Schond L. | CFO | S - Sale | $3.63 | -5,652 | 216.6K | -3% | -$20.5K | |
| 2023-12-26 | 2023-12-26 | DFTX | Karlin Dan | Chief Medical Off | S - Sale | $3.63 | -6,774 | 365.0K | -2% | -$24.6K | |
| M | 2023-09-25 | 2023-09-25 | DFTX | Barrow Robert | CEO, Dir | S - Sale | $3.58 | -13.5K | 611.7K | -2% | -$48.3K |
| M | 2023-09-25 | 2023-09-25 | DFTX | Greenway Schond L. | CFO | S - Sale | $3.58 | -5,762 | 226.1K | -2% | -$20.6K |
| M | 2023-09-25 | 2023-09-25 | DFTX | Karlin Dan | Chief Medical Off | S - Sale | $3.57 | -6,918 | 371.8K | -2% | -$24.7K |
| 2023-08-28 | 2023-08-25 | DFTX | Greenway Schond L. | CFO | S - Sale | $3.80 | -20.0K | 228.0K | -8% | -$76.0K | |
| M | 2023-06-27 | 2023-06-27 | DFTX | Barrow Robert | CEO, Dir | S - Sale | $3.20 | -15.5K | 623.5K | -2% | -$49.6K |
| M | 2023-06-27 | 2023-06-27 | DFTX | Karlin Dan | Chief Medical Off | S - Sale | $3.20 | -6,783 | 378.7K | -2% | -$21.7K |
| M | 2023-06-27 | 2023-06-27 | DFTX | Greenway Schond L. | CFO | S - Sale | $3.20 | -11.6K | 248.0K | -4% | -$37.2K |
| D | 2023-06-23 | 2023-06-21 | DFTX | Krebs Andreas | Dir | A - Grant | $0.00 | +13.7K | 15.1K | +952% | $0 |
| D | 2023-06-23 | 2023-06-21 | DFTX | GRYSKA DAVID W | Dir | A - Grant | $0.00 | +13.9K | 13.9K | New | $0 |
| D | 2023-06-23 | 2023-06-21 | DFTX | Bruhn Suzanne Louise | Dir | A - Grant | $0.00 | +13.7K | 19.6K | +230% | $0 |
| D | 2023-06-23 | 2023-06-21 | DFTX | CRYSTAL ROGER | Dir | A - Grant | $0.00 | +13.7K | 19.6K | +230% | $0 |
| D | 2023-06-23 | 2023-06-21 | DFTX | Vallone Carol A | Dir | A - Grant | $0.00 | +13.7K | 16.5K | +476% | $0 |
| A | 2023-04-24 | 2023-03-14 | DFTX | Wernli Miri Halperin | Executive Pres, Dir | A - Grant | $0.00 | +100.0K | 185.0K | +118% | $0 |
| A | 2023-04-24 | 2023-03-14 | DFTX | Greenway Schond L. | CFO | A - Grant | $0.00 | +175.0K | 259.7K | +207% | $0 |
| A | 2023-04-24 | 2023-03-14 | DFTX | Liao Carrie | CAO | A - Grant | $0.00 | +75.0K | 101.9K | +279% | $0 |
| 2023-04-14 | 2023-04-13 | DFTX | Sullivan Mark | CLO | A - Grant | $0.00 | +200.0K | 200.0K | New | $0 | |
| 2023-03-17 | 2023-03-14 | DFTX | Wernli Miri Halperin | Executive Pres, Dir | A - Grant | $0.00 | +100.0K | 1.38M | +8% | $0 | |
| 2023-03-17 | 2023-03-14 | DFTX | Liao Carrie | VP, Ctrl, Acct Principal | A - Grant | $0.00 | +75.0K | 478.4K | +19% | $0 | |
| 2023-03-17 | 2023-03-14 | DFTX | Barrow Robert | CEO, Dir | A - Grant | $0.00 | +400.0K | 639.0K | +167% | $0 | |
| 2023-03-17 | 2023-03-14 | DFTX | Karlin Dan | Chief Medical Off | A - Grant | $0.00 | +125.0K | 385.5K | +48% | $0 | |
| 2023-03-17 | 2023-03-14 | DFTX | Greenway Schond L. | CFO | A - Grant | $0.00 | +175.0K | 1.45M | +14% | $0 | |
| 2023-03-02 | 2023-03-01 | DFTX | Barrow Robert | CEO, Dir | S - Sale | $3.51 | -8,273 | 239.0K | -3% | -$29.0K | |
| 2023-03-02 | 2023-03-01 | DFTX | Karlin Dan | Chief Medical Off | S - Sale | $3.51 | -3,577 | 260.5K | -1% | -$12.6K |
Purchase Sale Sale after option exercise All abbreviations