---
schema_version: "secwatch.filing_event.v1"
accession: "0001213900-26-067344"
form_type: "8-K"
ticker: "MBAV"
cik: "0002016072"
company_name: "M3-Brigade Acquisition V Corp."
filed_at: "2026-06-10T20:23:18+00:00"
generated_at: "2026-06-10T20:29:53.128387+00:00"
event_type: "other_material"
sentiment: "neutral"
materiality_score: 0.55
calibrated_materiality_score: 0.55
confidence: "high"
source: SEC EDGAR
---

# MBAV postpones shareholder vote on ReserveOne merger to June 18; redemption deadline extended

## Summary
- Extraordinary general meeting postponed from June 15 to June 18, 2026 at 12:00 PM ET.
- Redemption deadline for Class A public shares extended to June 16, 2026 (previously June 11).
- Record date remains May 7, 2026; no changes to proposals or board recommendations.
- Purpose is to allow shareholders more time to consider the business combination with ReserveOne, Inc. and to submit proxies.

## SEC filing metadata
- accession: 0001213900-26-067344
- form_type: 8-K
- ticker: MBAV
- cik: 0002016072
- company_name: M3-Brigade Acquisition V Corp.
- filed_at: 2026-06-10T20:23:18+00:00
- event_type: other_material
- sentiment: neutral
- materiality_score: 0.55
- calibrated_materiality_score: 0.55
- confidence: high
- sec_items: 8.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/2016072/000121390026067344/0001213900-26-067344-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/2016072/000121390026067344/ea0294237-8k425_m3brigade5.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001213900-26-067344
- JSON: https://secwatch.observer/filing/0001213900-26-067344.json
- Plain text: https://secwatch.observer/filing/0001213900-26-067344.txt

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