Company · CIK 0001813814 · SIC 2833 — Medicinal Chemicals & Botanical Products · Nasdaq
Definium Therapeutics, Inc. · DFTX
Insider activity reported against this company. All insider holders · On EDGAR ↗
Reported at this company — common stock
| Trade | Reported (ET) | Insider | Shares | Avg price | Total | Owned after | Δ stake | Flags |
|---|---|---|---|---|---|---|---|---|
| Sep 18, 2026 MForm 4 → | Sep 18, 9:55 pm EDT | Carol A ValloneDirector | 1,086 | $35.52 | $38,575 | 22,296 | — | |
| Sep 18, 2026 MForm 4 → | Sep 18, 9:55 pm EDT | Andreas KrebsDirector | 1,629 | $35.52 | $57,862 | 21,402 | — | |
| Sep 14, 2026 AForm 4 → | Sep 14, 8:30 am EDT | Daniel KarlinChief Medical Officer | 200,000 | — | — | 803,699 | — | |
| Sep 14, 2026 AForm 4 → | Sep 14, 8:30 am EDT | Matthew T. WileyChief Commercial Officer | 125,000 | — | — | 362,133 | — | |
| Sep 14, 2026 AForm 4 → | Sep 14, 8:30 am EDT | Mark SullivanChief Legal Officer | 125,000 | — | — | 508,279 | — | |
| Sep 14, 2026 AForm 4 → | Sep 14, 8:30 am EDT | Brandi RobertsChief Financial Officer | 125,000 | — | — | 397,905 | — | |
| Sep 14, 2026 AForm 4 → | Sep 14, 8:30 am EDT | Robert BarrowChief Executive Officer, Director | 750,000 | — | — | 2,244,640 | — | |
| Sep 3, 2026 SForm 4 → | Sep 4, 9:30 pm EDT | Robert BarrowChief Executive Officer, Director | 19,023 | $37.94 | $721,733 | 1,494,640 | −1.26% | 10b5-1 |
| Sep 2, 2026 AForm 4 → | Sep 4, 9:30 pm EDT | Robert BarrowChief Executive Officer, Director | 40,000 | — | — | 1,513,663 | — | 10b5-1 |
| Aug 12, 2026 AForm 4 → | Aug 12, 8:30 am EDT | Robert BarrowChief Executive Officer, Director | 375,000 | — | — | 1,473,246 | — | |
| Aug 12, 2026 AForm 4 → | Aug 12, 8:30 am EDT | Daniel KarlinChief Medical Officer | 100,000 | — | — | 603,282 | — | |
| Aug 12, 2026 AForm 4 → | Aug 12, 8:30 am EDT | Mark SullivanChief Legal Officer | 62,500 | — | — | 383,071 | — | |
| Aug 12, 2026 AForm 4 → | Aug 12, 8:30 am EDT | Matthew T. WileyChief Commercial Officer | 62,500 | — | — | 237,133 | — | |
| Aug 12, 2026 AForm 4 → | Aug 12, 8:30 am EDT | Brandi RobertsChief Financial Officer | 62,500 | — | — | 271,987 | — |
Reported at this company — derivatives (options, RSUs, warrants)
| Trade | Reported (ET) | Insider | Shares | Avg price | Total | Owned after | Δ stake | Flags |
|---|---|---|---|---|---|---|---|---|
| Sep 18, 2026 MForm 4 → | Sep 18, 9:55 pm EDT | Carol A ValloneDirector | 1,086 | — | — | 0 | — | |
| Sep 18, 2026 MForm 4 → | Sep 18, 9:55 pm EDT | Andreas KrebsDirector | 1,629 | — | — | 0 | — |