Quantumsphere Acquisition Corporation filed a notice that it will be late in submitting its Quarterly Report on Form 10-Q for the quarter ended December 31, 2025. The company says it could not meet the smaller reporting company deadline of February 17, 2026 without unreasonable effort or expense because of delays in completing the financial statements.
The company states that it anticipates filing this Form 10-Q no later than the seventh calendar day after the prescribed filing date, indicating the delay is expected to be short-term and tied specifically to finalizing its quarterly financial information.
Mizuho Financial Group, Inc. has filed a Schedule 13G reporting a passive ownership stake in Quantumsphere Acquisition Corporation. The firm beneficially owns 718,086 common shares, representing 6.3% of the class as of the event date of 12/31/2025.
Mizuho reports sole power to vote and dispose of all 718,086 shares, with no shared voting or dispositive power. The filing notes that Mizuho Financial Group, Mizuho Bank, Ltd. and Mizuho Americas LLC may be deemed indirect beneficial owners of equity securities directly held by their wholly owned subsidiary, Mizuho Securities USA LLC, and certifies that the shares are held in the ordinary course of business and not for the purpose of changing or influencing control of the issuer.
Quantumsphere Acquisition Corporation reported that its business combination target, SACH Pte. Ltd., raised new equity financing in connection with their pending merger. On January 13, 2026, SACH Pte. Ltd. entered into a subscription agreement with Cypress Innovations Limited for 2,055 ordinary shares at $973.16 per share, providing gross proceeds of $2,000,000. On the same date, SACH Pte. Ltd. signed a separate subscription agreement with an individual investor for 103 ordinary shares at $973.16 per share, for gross proceeds of $100,000. These subscriptions support SACH Pte. Ltd.’s ongoing financing activities ahead of the planned business combination, and no securities of Quantumsphere Acquisition Corporation were issued in either transaction.