DEFINIUM THERAPEUTICS INC (DFTX) — insider trading
Health Care · NASDAQ
DEFINIUM THERAPEUTICS INC (DFTX) has 14 reported SEC Form 4 insider transactions in our data, including 5 open-market sales among the most recent 14 (latest 2026-06-25).
Recent Form 4 transactions
| Date | Insider | Role | Type | Shares | Price | Value | Filing |
|---|---|---|---|---|---|---|---|
| 2026-06-25 | Wiley Matthew T. | Officer (Chief Commercial Officer) | Open-market sale | 2,867 | $45.03 | $129.1K | Form 4 |
| 2026-06-25 | Karlin Daniel | Officer (Chief Medical Officer) | Open-market sale | 10,035 | $45.03 | $451.9K | Form 4 |
| 2026-06-25 | Barrow Robert | Director, Officer (Chief Executive Officer) | Open-market sale | 29,208 | $45.03 | $1.32M | Form 4 |
| 2026-06-25 | Roberts Brandi | Officer (Chief Financial Officer) | Open-market sale | 3,013 | $45.03 | $135.7K | Form 4 |
| 2026-06-25 | Sullivan Mark | Officer (Chief Legal Officer) | Open-market sale | 13,008 | $45.03 | $585.8K | Form 4 |
| 2026-06-22 | Karlin Daniel | Officer (Chief Medical Officer) | Grant / award / vesting | 100,000 | $0.00 | $0 | Form 4 |
| 2026-06-22 | Sullivan Mark | Officer (Chief Legal Officer) | Grant / award / vesting | 62,500 | $0.00 | $0 | Form 4 |
| 2026-06-22 | Roberts Brandi | Officer (Chief Financial Officer) | Grant / award / vesting | 62,500 | $0.00 | $0 | Form 4 |
| 2026-06-22 | Barrow Robert | Director, Officer (Chief Executive Officer) | Grant / award / vesting | 375,000 | $0.00 | $0 | Form 4 |
| 2026-06-22 | Wiley Matthew T. | Officer (Chief Commercial Officer) | Grant / award / vesting | 62,500 | $0.00 | $0 | Form 4 |
| 2026-06-11 | GRYSKA DAVID W | Director | Grant / award / vesting (derivative) | 19,188 | $0.00 | $0 | Form 4 |
| 2026-06-11 | GRYSKA DAVID W | Director | Grant / award / vesting | 4,666 | $0.00 | $0 | Form 4 |
| 2026-06-11 | CRYSTAL ROGER | Director | Grant / award / vesting (derivative) | 19,188 | $0.00 | $0 | Form 4 |
| 2026-06-11 | CRYSTAL ROGER | Director | Grant / award / vesting | 4,666 | $0.00 | $0 | Form 4 |
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Transaction types are the SEC Form 4 codes: open-market purchases (P) and sales (S) are the only rows that reflect open-market conviction. Awards/vesting (A), option exercises (M/X/C), shares withheld for taxes (F) and gifts (G) are compensation or mechanical, not buying or selling on the open market. Sales may be planned and non-discretionary (e.g. a Rule 10b5-1 plan); open-market buying is not a recommendation to buy. Informational only — not financial advice.
Source: SEC EDGAR Form 3/4/5. See the full company profile: DEFINIUM THERAPEUTICS INC (DFTX).
Last updated 2026-06-25 (most recent filing date).
Informational only — NOT financial advice. Insider filings are sourced from SEC EDGAR and shown with their reported dates.