¥144B Mizuho (NYSE: MFG) buyback progress revealed in 6-K

Rhea-AI Filing Summary

Mizuho Financial Group, Inc. reports progress on its ongoing common stock repurchase program. From January 1 to January 31, 2026, it repurchased 9,161,100 shares of common stock for a total of ¥59,554,208,900 via market purchases using a trust method.

The buyback is part of a larger program to repurchase up to 60,000,000 shares of common stock, equal to 2.4% of total shares outstanding excluding treasury stock as of September 30, 2025, for up to ¥200,000,000,000 between November 17, 2025 and February 28, 2026. Cumulatively, the company has repurchased 24,490,100 shares for ¥144,039,317,900 under this authorization.

Insights

Banking equity & capital management analyst

Mizuho details steady execution of a sizable share repurchase plan.

Mizuho Financial Group is providing an update on a previously authorized buyback of up to 60,000,000 shares, or 2.4% of shares outstanding excluding treasury stock as of September 30, 2025, with a cap of ¥200,000,000,000.

During January 2026, the bank repurchased 9,161,100 shares for ¥59,554,208,900, bringing cumulative repurchases since November 17, 2025 to 24,490,100 shares and ¥144,039,317,900. The use of market purchases via a trust method is standard for large financial institutions managing buybacks.

The disclosed figures clarify how much capacity remains under the program but do not alter its original terms. Subsequent disclosures in periodic reports or further 6-Ks may show whether the full 60,000,000-share or ¥200,000,000,000 limits are ultimately utilized by February 28, 2026.

Form 6-K: How Foreign Companies Report to the SEC →

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 6-K

REPORT OF FOREIGN PRIVATE ISSUER

PURSUANT TO RULE 13a-16 OR 15d-16

UNDER THE SECURITIES EXCHANGE ACT OF 1934

For the month of February 2026

Commission File Number 001-33098

Mizuho Financial Group, Inc.

(Translation of registrant’s name into English)

5-5, Otemachi 1-chome

Chiyoda-ku, Tokyo 100-8176

Japan

(Address of principal executive office)

Indicate by check mark whether the registrant files or will file annual reports under cover of Form 20-F or Form 40-F. Form 20-F ☒ Form 40-F ☐

THIS REPORT ON FORM 6-K SHALL BE DEEMED TO BE INCORPORATED BY REFERENCE INTO THE PROSPECTUS FORMING A PART OF MIZUHO FINANCIAL GROUP, INC.’S REGISTRATION STATEMENT ON FORM F-3 (FILE NO. 333-282497) AND TO BE A PART OF SUCH PROSPECTUS FROM THE DATE ON WHICH THIS REPORT IS FURNISHED, TO THE EXTENT NOT SUPERSEDED BY DOCUMENTS OR REPORTS SUBSEQUENTLY FILED OR FURNISHED.

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

				Date: February 2, 2026 Mizuho Financial Group, Inc.
				By:		/s/ Takefumi Yonezawa
				Name:		Takefumi Yonezawa
				Title:		Senior Managing Corporate Executive / Group CFO

February 2, 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 of Repurchase of Our 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.)

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.

(1) Stock repurchased		MHFG common stock
(2) Aggregate shares repurchased		9,161,100 shares
(3) Aggregate repurchase price		¥59,554,208,900
(4) Repurchase period		January1, 2026 to January31, 2026 (trade date basis)
(5) Repurchase method		Market purchase utilizing trust method

(Reference)

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

(1) Stock to be repurchased		MHFG common stock
(2) Aggregate shares to be repurchased		Up to a maximum of 60,000,000 shares
		(2.4% of total shares outstanding excluding treasury stock as of September 30, 2025)
(3) Aggregate amount of repurchase price		Up to a maximum of ¥200,000,000,000
(4) Repurchase period		From November 17, 2025 to February 28, 2026
(5) Repurchase method		Market purchase utilizing trust method

2. Aggregate number of shares and amount repurchased pursuant to the above resolution as of January 31, 2026

Aggregate number of shares repurchased		24,490,100 shares
Aggregate amount repurchased:		¥144,039,317,900

End of document

This immediate release contains statements that constitute forward-looking statements within the meaning of the United States Private Securities Litigation Reform Act of 1995, including estimates, forecasts, targets and plans. Such forward-looking statements do not represent any guarantee by management of future performance. Factors that could affect our financial condition and results of operations are included in “Item 3.D. Key Information—Risk Factors” and “Item 5. Operating and Financial Review and Prospects” in our most recent Form 20-F filed with the U.S. Securities and Exchange Commission (“SEC”), which is available in the Financial Information section of our web page at www.mizuhogroup.com and also at the SEC’s web site at www.sec.gov. We are under no obligation, and disclaim any obligation, to update or alter our forward-looking statements, whether as a result of new information, future events or otherwise, except as may be required by the rules of the Tokyo Stock Exchange.

FAQ

What share repurchase progress did Mizuho Financial Group (MFG) report for January 2026?

Mizuho Financial Group repurchased 9,161,100 shares of its common stock in January 2026. The aggregate purchase price was ¥59,554,208,900, using market purchases through a trust method as part of its ongoing buyback authorization.

What are the total cumulative buybacks under Mizuho Financial Group’s current program?

Under the current authorization, Mizuho Financial Group has cumulatively repurchased 24,490,100 common shares. The total amount spent so far is ¥144,039,317,900, based on market purchases conducted via a trust between November 17, 2025 and January 31, 2026.

What is the maximum size of Mizuho Financial Group’s ongoing share repurchase program?

The ongoing program allows Mizuho Financial Group to repurchase up to 60,000,000 common shares. This represents 2.4% of total shares outstanding excluding treasury stock as of September 30, 2025, with a maximum aggregate repurchase amount of ¥200,000,000,000.

Over what period is Mizuho Financial Group authorized to execute this share buyback?

Mizuho Financial Group is authorized to conduct the current share repurchase program from November 17, 2025 to February 28, 2026. During this window, it may buy back shares up to the stated share and yen limits through market purchases utilizing a trust method.

How is Mizuho Financial Group conducting its common stock repurchases?

Mizuho Financial Group is executing its common stock buybacks through market purchases utilizing a trust method. This structure allows the company to systematically repurchase shares within the authorized limits set for total shares and total yen consideration.

What legal basis does Mizuho Financial Group cite for its share repurchase program?

The program is conducted under Article 156, Paragraph 1 of Japan’s Companies Act, in accordance with Article 459, Paragraph 1 and Article 47 of Mizuho Financial Group’s Articles of Incorporation. This framework authorizes the company’s board to approve and implement the repurchases.