M3-Brigade Acquisition V Corp. 8-K

What Happened
M3‑Brigade Acquisition V Corp. announced on June 10, 2026 that it has postponed its extraordinary general meeting to vote on the proposed business combination with ReserveOne, Inc. The meeting was moved from June 15, 2026 at 11:00 a.m. ET to June 18, 2026 at 12:00 p.m. ET. The meeting location remains Troutman Pepper Locke LLP, 875 Third Ave, 17th Floor, New York, NY, and will also be available by webcast. The Company said the delay is to give shareholders more time to consider the transaction and to allow additional time for proxy outreach.

Key Details

• New meeting date/time: June 18, 2026 at 12:00 p.m. Eastern Time (originally June 15, 2026 at 11:00 a.m. ET).
• Record date remains close of business on May 7, 2026.
• Redemption deadline for holders of Class A ordinary “Public Shares” extended from 5:00 p.m. ET on June 11, 2026 to 5:00 p.m. ET on June 16, 2026 (two business days before the rescheduled vote).
• Proxies already submitted remain valid and will be voted at the postponed meeting unless revoked; shareholders who haven’t voted or want to change their vote are encouraged to do so.
• The Registration Statement on Form S‑4 for the transaction was declared effective May 13, 2026; the proxy/prospectus was first mailed May 21, 2026. Copies are available free at SEC.gov or from the Company/ReserveOne as described in the filing.

Why It Matters
For investors, the postponement gives more time to review the proxy materials and decide whether to vote for the business combination or redeem shares. The extended redemption deadline is material because the level of redemptions can affect the public float and liquidity of the combined company and may influence whether the transaction proceeds under the expected terms. The filing also reiterates standard forward‑looking risk factors (including that the business combination may not close and that redemptions may reduce liquidity), so shareholders should review the definitive proxy/prospectus and related SEC filings before deciding how to vote or whether to redeem.