---
schema_version: "secwatch.filing_event.v1"
accession: "0000950170-24-039484"
form_type: "8-K"
ticker: "DFTX"
cik: "0001813814"
company_name: "Definium Therapeutics, Inc."
filed_at: "2024-04-01T23:59:59+00:00"
generated_at: "2026-06-04T04:49:32.777046+00:00"
event_type: "other_material"
sentiment: "neutral"
materiality_score: 0.25
calibrated_materiality_score: 0.25
confidence: "high"
source: SEC EDGAR
---

# MindMed voluntarily delists from Cboe Canada effective April 10, 2024; continues Nasdaq listing

## Summary
- Voluntary delisting from Cboe Canada at market close on April 10, 2024; Cboe Canada accepted notice.
- Common shares to continue trading on Nasdaq under symbol MNMD; ~95% of trading volume already on Nasdaq.
- Company cites insufficient Cboe Canada volume to justify dual listing costs; savings redirected to shareholder initiatives.
- Board approved delisting; no shareholder approval required as alternative market exists on Nasdaq.

## SEC filing metadata
- accession: 0000950170-24-039484
- form_type: 8-K
- ticker: DFTX
- cik: 0001813814
- company_name: Definium Therapeutics, Inc.
- filed_at: 2024-04-01T23:59:59+00:00
- event_type: other_material
- sentiment: neutral
- materiality_score: 0.25
- calibrated_materiality_score: 0.25
- confidence: high
- sec_items: 8.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1813814/000095017024039484/0000950170-24-039484-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1813814/000095017024039484/mnmd-20240401.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0000950170-24-039484
- JSON: https://secwatch.observer/filing/0000950170-24-039484.json
- Plain text: https://secwatch.observer/filing/0000950170-24-039484.txt

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