Notice regarding Progress and Completion of Repurchase of Our Common Stock, and Cancellation of Repurchased Common Stock

March 12, 2026

Company Name : Mizuho Financial Group, Inc.

Representative : Masahiro Kihara, President and Group CEO Head Office : 1-5-5 Otemachi, Chiyoda-ku, Tokyo

Code Number : 8411 (Prime Market of Tokyo Stock Exchange)

Notice regarding Progress and Completion of Repurchase of Our Common Stock, and Cancellation of Repurchased Common Stock

(Repurchase of our common stock pursuant to the provisions of Article 156, Paragraph 1 of the Companies Act, in accordance with the provisions of Article 459, Paragraph 1 of the Companies Act and the Articles of Incorporation of Mizuho Financial Group, Inc., and cancellation of repurchased common stock pursuant to Article 178 of the Companies Act)

Mizuho Financial Group, Inc. ("MHFG") hereby announces the progress of the repurchase of its common stock pursuant to the provisions of Article 156, Paragraph 1 of the Companies Act of Japan ("Companies Act") and in accordance with the provisions of Article 459, Paragraph 1 of the Companies Act and Article 47 of its Articles of Incorporation.

The repurchase of MHFG's common stock pursuant to the resolution of the Board of Directors meeting held on November 14, 2025 and February 2, 2026 has been completed as follows.

MHFG also announces that the number of shares to be cancelled pursuant to Article 178 of the Companies Act has been finalized, as detailed below.

1. Progress of Repurchase of Common Stock

   1. Stock repurchased MHFG common stock

   2. Aggregate shares repurchased 7,885,800 shares

   3. Aggregate repurchase price ¥50,935,886,300

   4. Repurchase period March 1, 2026 to March 11, 2026 (trade date basis)

   5. Repurchase method Market purchase utilizing trust method

2. Cancellation of Common Stock

   1. Type of shares to be cancelled MHFG common stock

   2. Number of shares to be cancelled 47,016,600 shares

      (1.9% of total number of outstanding shares before cancellation)

   3. Scheduled cancellation date April 22, 2026

(Reference)

1. Outline of the resolution of the meeting of the Board of Directors regarding the repurchase of common stock (November 14, 2025 and February 2, 2026)

   1. Stock to be repurchased MHFG common stock

   2. Aggregate shares to be repurchased Up to a maximum of 65,000,000 shares

      (2.6% of total shares outstanding excluding treasury stock as of December 31, 2025)

   3. Aggregate amount of repurchase price Up to a maximum of ¥300,000,000,000

   4. Repurchase period From November 17, 2025 to March 31, 2026

   5. Repurchase method Market purchase utilizing trust method

2. Aggregate number of shares and amount repurchased pursuant to the above resolution as of March 11, 2026 Aggregate number of shares repurchased 47,016,600 shares

   Aggregate amount repurchased ¥299,999,885,700

3. Outline of the resolution of the meeting of the Board of Directors regarding the cancellation of common stock (November 14, 2025 and February 2, 2026)

   1. Type of shares to be cancelled MHFG common stock

   2. Number of shares to be cancelled All of the shares repurchased as stated in item 1 above

   3. Scheduled cancellation date April 22, 2026

4. Treasury stock held by MHFG as of December 31, 2025

Total shares outstanding (excluding treasury stock) 2,470,172,294 shares

Treasury stock 19,676,300 shares

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