---
schema_version: "secwatch.filing_event.v1"
accession: "0000950142-25-002818"
form_type: "8-K"
ticker: "MBVI"
cik: "0002073928"
company_name: "M3-Brigade Acquisition VI Corp."
filed_at: "2025-10-16T23:59:59+00:00"
generated_at: "2026-05-17T03:36:27.633059+00:00"
event_type: "other_material"
sentiment: "neutral"
materiality_score: 0.2
calibrated_materiality_score: 0.2
confidence: "high"
source: SEC EDGAR
---

# M3-Brigade Acquisition VI units separable into shares & warrants from Oct 17

## Summary
- Holders of 34.5M units (including overallotment) from IPO can separate Class A shares (MBVI) and warrants (MBVIW) starting Oct 17, 2025.
- Unseparated units continue trading as MBVIU on Nasdaq; no fractional warrants, only whole warrants trade.
- Brokers must contact Continental Stock Transfer & Trust to separate units into underlying securities.

## SEC filing metadata
- accession: 0000950142-25-002818
- form_type: 8-K
- ticker: MBVI
- cik: 0002073928
- company_name: M3-Brigade Acquisition VI Corp.
- filed_at: 2025-10-16T23:59:59+00:00
- event_type: other_material
- sentiment: neutral
- materiality_score: 0.2
- calibrated_materiality_score: 0.2
- confidence: high
- sec_items: 8.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/2073928/000095014225002818/0000950142-25-002818-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/2073928/000095014225002818/eh250692721_8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0000950142-25-002818
- JSON: https://secwatch.observer/filing/0000950142-25-002818.json
- Plain text: https://secwatch.observer/filing/0000950142-25-002818.txt

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