Notice Regarding Status of Treasury Stock Acquisition, Completion of Acquisition, and Cancellation of Treasury Stock (Based on the Provisions of Article 459, Paragraph 1 of the Companies Act Acquisition of Treasury Stock under Article 156, Paragraph 1 of the same Act and Cancellation of Treasury Stock under Article 178 of the same Act)

Overview of Treasury Stock Acquisition and Cancellation

Mizuho Financial Group, Inc. acquired 5,894,700 shares of its common stock through market purchases via a trust method from August 1 to August 29, 2025, at a total price of 27,650,652,900 yen. This acquisition was based on a resolution of the Board of Directors dated May 15, 2025, which set an acquisition upper limit of 40,000,000 shares and a total acquisition cost limit of 100 billion yen. The acquisition was completed on August 29, 2025. Furthermore, based on the same Board resolution, 23,909,200 shares of treasury stock acquired (representing 0.9% of total shares issued) are scheduled for cancellation on September 22, 2025.

Impact on Shareholders and Future Outlook

The cancellation of treasury stock will reduce the number of shares outstanding and is expected to enhance the value per share. As of June 30, 2025, the total number of shares issued excluding treasury stock was 2,499,342,351 shares, with treasury stock totaling 14,415,443 shares. This cancellation will affect these share counts and contribute to preventing dilution of shareholder value. Please note that this document includes statements regarding future performance and plans, which involve uncertainties.