SCHEDULE: Mizuho Financial Group Discloses 9% Stake in StoneBridge

Mizuho Financial Group, Inc. has reported a 9.0% beneficial ownership stake in StoneBridge Acquisition II Corporation as of December 31, 2025.

Summary

• Mizuho Financial Group, Inc. beneficially owns 552,055 Common Shares of StoneBridge Acquisition II Corporation.
• This ownership represents 9.0% of the class of securities.
• The shares are held with sole voting power and sole dispositive power by Mizuho Financial Group, Inc.
• The beneficial ownership is indirect, held through its wholly-owned subsidiary, Mizuho Securities USA LLC.
• Mizuho Financial Group, Inc. is classified as a Parent Holding Company for this filing.
• The securities were acquired and are held in the ordinary course of business, not for the purpose of changing or influencing control of the issuer.

Sentiment

Score: 6

Explanation: StockSavvy.ai views this as a moderately positive signal, as it indicates a significant institutional investor's passive interest in StoneBridge Acquisition II Corporation, suggesting a degree of confidence in the issuer's prospects, albeit without any active engagement for control.

Positives

• A significant institutional investor, Mizuho Financial Group, Inc., holds a 9.0% stake, indicating institutional interest in StoneBridge Acquisition II Corporation.

Future Outlook

The filing does not contain any forward-looking statements or guidance regarding StoneBridge Acquisition II Corporation's future performance or strategic direction.

Management Comments

• Mizuho Financial Group, Inc. certifies that the securities were acquired and are held in the ordinary course of business and not for the purpose of changing or influencing the control of the issuer.

Industry Context

StockSavvy.ai notes that Schedule 13G filings are routine disclosures by institutional investors, such as large financial groups like Mizuho, when their beneficial ownership in a public company exceeds 5% and is held for passive investment purposes. This filing indicates Mizuho's continued or new passive investment in StoneBridge Acquisition II Corporation, a Special Purpose Acquisition Company (SPAC).

Stakeholder Impact

• Shareholders of StoneBridge Acquisition II Corporation may view the significant institutional ownership by Mizuho Financial Group, Inc. as a positive indicator of investor confidence and market liquidity.

Key Dates

Keywords

Mizuho Financial Group, StoneBridge Acquisition II Corporation, Schedule 13G, Beneficial Ownership, Institutional Investment, Common Shares, Financial Services, Investment Banking