Mizuho Financial Group, Inc. filed an amended Schedule 13G on November 12, 2026, disclosing beneficial ownership of 689,011 common shares of Mountain Crest Acquisition 6 Corp., representing 8.0% of the class, as of a triggering event dated September 30, 2026.

Key Highlights

  • Beneficial ownership: Mizuho Financial Group, Inc. reported aggregate beneficial ownership of 689,011 common shares of Mountain Crest Acquisition 6 Corp.
  • Percent of class: The 689,011 shares represent 8.0% of the outstanding class of common shares, according to the filing.
  • Sole voting and dispositive power: Mizuho Financial Group, Inc. reported sole voting power and sole dispositive power over all 689,011 shares, with no shared voting or dispositive power.
  • Indirect beneficial ownership: The filing states that Mizuho Financial Group, Inc., Mizuho Bank, Ltd., and Mizuho Americas LLC "may be deemed to be indirect beneficial owners" of the shares directly held by Mizuho Securities USA LLC, their wholly-owned subsidiary.
  • Triggering event date: The date of the event requiring this filing was reported as September 30, 2026.
  • Filer classification: Mizuho Financial Group, Inc. is identified in the filing as a Parent Holding Company, organized in Japan.

Mizuho Financial Group's Amended 13G Ownership Disclosure for Mountain Crest Acquisition 6

Mizuho Financial Group, Inc., a Japan-based parent holding company, filed Amendment No. 1 to Schedule 13G with the SEC on November 12, 2026, covering its beneficial ownership in Mountain Crest Acquisition 6 Corp. (CUSIP G62980100). The issuer's principal executive offices are listed at 524 Broadway, 11th Floor, New York, NY 10012, according to the filing.

The filing discloses that Mizuho Financial Group, Inc. beneficially owns 689,011 common shares, constituting 8.0% of the class. All 689,011 shares carry sole voting power and sole dispositive power attributed to Mizuho Financial Group, Inc., with zero shares subject to shared voting or shared dispositive power. The filing notes that the shares are directly held by Mizuho Securities USA LLC, a wholly-owned subsidiary, and that Mizuho Financial Group, Inc., Mizuho Bank, Ltd., and Mizuho Americas LLC may each be deemed indirect beneficial owners of those securities.

In its certification, Mizuho Financial Group, Inc. states that "the securities referred to above were acquired and are held in the ordinary course of business and were not acquired and are not held for the purpose of or with the effect of changing or influencing the control of the issuer." The filing was signed by Takahiro Katsura, Managing Director, Global Corporate Function Coordination Department, on behalf of Mizuho Financial Group, Inc.

What Was Disclosed

Mizuho Financial Group, Inc. filed an amended Schedule 13G disclosing 689,011 common shares, or 8.0%, of Mountain Crest Acquisition 6 Corp. as of September 30, 2026, held indirectly through wholly-owned subsidiary Mizuho Securities USA LLC.