Notice Regarding the Status of Treasury Stock Acquisition (Based on the provision of Article 459, Paragraph 1 of the Companies Act and the acquisition of treasury stock pursuant to Article 156, Paragraph 1 of the same Act)

Overview of Treasury Stock Acquisition

Mizuho Financial Group, Inc. acquired 9,434,900 shares of common stock through market purchases via a trust method at a total of 53,454,803,500 yen from December 1 to December 31, 2025, based on the provisions of Article 459, Paragraph 1 and Article 156, Paragraph 1 of the Companies Act. According to the Board of Directors resolution dated November 14, 2025, the acquisition cap is set at 60,000,000 shares, acquisition amount cap at 200 billion yen, and the acquisition period from November 17, 2025, to February 28, 2026. As of December 31, 2025, cumulative shares acquired totaled 15,329,000 shares, with a cumulative acquisition amount of 84,485,109,000 yen.

Impact on Shareholders and Future Outlook

This treasury stock acquisition was conducted under an upper limit of 2.4% of the total outstanding shares (excluding treasury stock) and aims to improve capital efficiency as part of shareholder returns. The acquisition method was market purchases via trust, and acquisitions will continue based on Board resolutions until February 28, 2026. Acquisition status will be disclosed in a timely manner given uncertainties such as future business performance and stock price trends.