Definium Therapeutics, Inc (DFTX) insider trading
Every open-market stock purchase and sale by Definium Therapeutics, Inc executives, directors, large shareholders and members of Congress, from SEC Form 4 filings. Sector: Other.
Insider activity at a glance
- Insiders sold $3.4M over the last 12 months (8 sales). No open-market buys.
- No open-market insider buys on record.
Last 12 months: insiders bought $0 (0 buys) and sold $3.4M (8 sales). Last close $23.55 on Jun 4, 2026.
Recent DFTX insider trades
| Date | Insider | Trade | Value |
|---|---|---|---|
| Jun 25, 2026 | Robert Barrow (CEO) | Sold | $1.3M |
| Jun 25, 2026 | Mark Sullivan (C-suite exec) | Sold | $586K |
| Jun 25, 2026 | Daniel Karlin (C-suite exec) | Sold | $452K |
| Jun 25, 2026 | Brandi Roberts (CFO) | Sold | $136K |
| Jun 25, 2026 | Matthew T. Wiley (C-suite exec) | Sold | $129K |
| Jun 22, 2026 | Matthew T. Wiley (C-suite exec) | Bought (not open market) | — |
| Jun 22, 2026 | Robert Barrow (CEO) | Bought (not open market) | — |
| Jun 22, 2026 | Brandi Roberts (CFO) | Bought (not open market) | — |
| Jun 22, 2026 | Mark Sullivan (C-suite exec) | Bought (not open market) | — |
| Jun 22, 2026 | Daniel Karlin (C-suite exec) | Bought (not open market) | — |
| Jun 11, 2026 | Roger Crystal (Insider) | Bought (not open market) | — |
| Jun 11, 2026 | Roger Adsett (Insider) | Bought (not open market) | — |
| Jun 11, 2026 | Suzanne Louise Bruhn (Insider) | Bought (not open market) | — |
| Jun 11, 2026 | Suzanne Louise Bruhn (Insider) | Bought (not open market) | — |
| Jun 11, 2026 | Roger Crystal (Insider) | Bought (not open market) | — |
| Jun 11, 2026 | Roger Adsett (Insider) | Bought (not open market) | — |
| Jun 11, 2026 | Andreas Krebs (Insider) | Bought (not open market) | — |
| Jun 11, 2026 | Andreas Krebs (Insider) | Bought (not open market) | — |
| Jun 11, 2026 | Carol A Vallone (Insider) | Bought (not open market) | — |
| Jun 11, 2026 | Carol A Vallone (Insider) | Bought (not open market) | — |
| Jun 11, 2026 | David W Gryska (Insider) | Bought (not open market) | — |
| Jun 11, 2026 | David W Gryska (Insider) | Bought (not open market) | — |
| Mar 25, 2026 | Robert Barrow (CEO) | Sold | $451K |
| Mar 25, 2026 | Mark Sullivan (C-suite exec) | Sold | $198K |
| Mar 25, 2026 | Daniel Karlin (C-suite exec) | Sold | $148K |
Who's trading DFTX
- Matthew T. Wiley, C-suite exec: sold $129K (1 sale), last Jun 25, 2026
- Robert Barrow, CEO: sold $1.8M (2 sales), last Jun 25, 2026
- Daniel Karlin, C-suite exec: sold $600K (2 sales), last Jun 25, 2026
- Brandi Roberts, CFO: sold $136K (1 sale), last Jun 25, 2026
- Mark Sullivan, C-suite exec: sold $783K (2 sales), last Jun 25, 2026
- Roger Adsett, Insider: other filings, last Jun 11, 2026
- Andreas Krebs, Insider: other filings, last Jun 11, 2026
- Carol A Vallone, Insider: other filings, last Jun 11, 2026
- Suzanne Louise Bruhn, Insider: other filings, last Jun 11, 2026
- Roger Crystal, Insider: other filings, last Jun 11, 2026
- David W Gryska, Insider: other filings, last Jun 11, 2026
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