---
schema_version: "secwatch.filing_event.v1"
accession: "0001193125-26-028186"
form_type: "8-K"
ticker: "DFTX"
cik: "0001813814"
company_name: "Definium Therapeutics, Inc."
filed_at: "2026-01-29T23:59:59+00:00"
generated_at: "2026-05-16T06:30:50.338390+00:00"
event_type: "leadership"
sentiment: "neutral"
materiality_score: 0.3
calibrated_materiality_score: 0.3
confidence: "high"
source: SEC EDGAR
---

# Definium Therapeutics appoints Roger Adsett to board, expanding to 7 directors

## Summary
- Board increased from 6 to 7 directors; Adsett appointed effective Jan 29, 2026.
- Adsett receives $40,000 annual cash retainer paid quarterly in arrears.
- Granted option for 50,000 common shares; vests 1/3 on first anniversary, then monthly.
- Not assigned to any board committees initially.

## SEC filing metadata
- accession: 0001193125-26-028186
- form_type: 8-K
- ticker: DFTX
- cik: 0001813814
- company_name: Definium Therapeutics, Inc.
- filed_at: 2026-01-29T23:59:59+00:00
- event_type: leadership
- sentiment: neutral
- materiality_score: 0.3
- calibrated_materiality_score: 0.3
- confidence: high
- sec_items: 5.02
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1813814/000119312526028186/0001193125-26-028186-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1813814/000119312526028186/dftx-20260128.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001193125-26-028186
- JSON: https://secwatch.observer/filing/0001193125-26-028186.json
- Plain text: https://secwatch.observer/filing/0001193125-26-028186.txt

This AI-assisted summary is a reading aid. Review the linked SEC EDGAR filing before relying on any specific claim.