Leadership reshuffle at Mizuho Financial Group (NYSE: MFG) elevates Sugawara

Rhea-AI Filing Summary

Mizuho Financial Group, Inc. has announced a change in senior leadership. Effective April 1, 2026, Masayuki Sugawara will become Deputy President & Corporate Executive and serve as a Representative Corporate Executive. Hidekatsu Take will move from Deputy President & Corporate Executive (Representative Corporate Executive) to become Member of the Board of Directors and Chairperson (Kaicho).

Sugawara has built his career across corporate and investment banking and regional leadership roles in East Asia and China, and owned 29,997 shares of Mizuho’s common stock as of December 31, 2025.

Insights

Bank governance analyst

Mizuho refreshes top executive roles while keeping continuity in its leadership bench.

Mizuho Financial Group is elevating Masayuki Sugawara to Deputy President & Corporate Executive (Representative Corporate Executive) from Senior Managing Corporate Executive. His background spans corporate and investment banking, regional management in East Asia and China, and senior roles at both the holding company and banking subsidiary.

Hidekatsu Take shifts from an executive management role to Chairperson of the Board, separating day‑to‑day executive responsibilities from board leadership. This maintains his influence at the group while focusing him on oversight. The changes take effect on April 1, 2026, with longer‑term implications to be understood through subsequent disclosures.

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NO. 333-282497) AND TO BE A PART OF SUCH PROSPECTUS FROM THE DATE ON WHICH THIS REPORT IS FURNISHED, TO THE EXTENT NOT SUPERSEDED BY DOCUMENTS OR REPORTS SUBSEQUENTLY FILED OR FURNISHED.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 27, 2026
Mizuho Financial Group, Inc.
By:		/s/ Takefumi Yonezawa
Name:		Takefumi Yonezawa
Title:		Senior Managing Corporate Executive / Group CFO

February 27, 2026

		Company Name		: Mizuho Financial Group, Inc.
		Representative		: Masahiro Kihara, President & Group CEO
		Address		: 1-5-5 Otemachi, Chiyoda-ku, Tokyo

Announcement of Change in Representative Corporate Executive

Mizuho Financial Group, Inc. hereby announces the following change in Representative Corporate Executive*.

* Corporate Executive : Executive Officer as defined in the Companies Act of Japan

1. Change in Representative Corporate Executive

(Effective as of April 1, 2026)

Name		New Position		Current Position
Masayuki Sugawara		Deputy President & Corporate Executive (Representative Corporate Executive)		Senior Managing Corporate Executive
Hidekatsu Take		Member of the Board of Directors, Chairperson (Kaicho)		Member of the Board of Directors, Deputy President & Corporate Executive (Representative Corporate Executive)

(Note) As a result of the change, the Representative Corporate Executives will be two persons;

Mr. Masahiro Kihara, President & Group CEO and Mr. Masayuki Sugawara.

2. Reason for Change

Change in Representative Corporate Executive due to change in Executive Officers.

1

3. Brief Personal Record of New Representative Corporate Executive

Name		Masayuki Sugawara
Business Experience		Apr. 2025		Senior Managing Corporate Executive Head of Corporate & Investment Banking Company Mizuho Financial Group, Inc. (current)
		Apr. 2024		Deputy President (Representative Director) Head of Corporate & Investment Banking Division Mizuho Bank, Ltd. (current)
		Apr. 2023		Senior Executive Officer Head of Corporate & Investment Banking Company Mizuho Financial Group, Inc. Managing Executive Officer Head of Corporate & Investment Banking Division Mizuho Bank, Ltd.
		Jul. 2021		Group Executive Officer CEO for East Asia Mizuho Financial Group, Inc.
		Aug.2019		Chairman Mizuho Bank (China) Ltd. (until Jun.2023)
		Apr. 2019		Managing Executive Officer Head of East Asia Mizuho Bank, Ltd. (until Apr.2023) Managing Executive Officer Head of East Asia Mizuho Financial Group, Inc. (until Jul.2021)
		Apr. 2017		Executive Officer General Manager Bangkok Branch Mizuho Bank, Ltd.
		Apr. 1988		Jointed our group
Education		Mar. 1988		Graduated from the School of Law, Hokkaido University
Date of Birth		August 21, 1964

Number of shares of our common stock owned (as of December 31, 2025): 29,997

2

FAQ

What leadership change did Mizuho Financial Group (MFG) announce in this 6-K?

Mizuho Financial Group announced that, effective April 1, 2026, Masayuki Sugawara will become Deputy President & Corporate Executive (Representative Corporate Executive), while Hidekatsu Take will become Member of the Board of Directors and Chairperson (Kaicho), moving from his current executive representative role.

Who is Masayuki Sugawara and what is his new role at Mizuho Financial Group (MFG)?

Masayuki Sugawara is a long‑time Mizuho executive with extensive corporate and investment banking and East Asia experience. He will assume the role of Deputy President & Corporate Executive (Representative Corporate Executive) effective April 1, 2026, moving up from Senior Managing Corporate Executive.

What position will Hidekatsu Take hold at Mizuho Financial Group (MFG) after April 1, 2026?

After April 1, 2026, Hidekatsu Take will serve as Member of the Board of Directors and Chairperson (Kaicho). He is transitioning from his current position as Member of the Board of Directors, Deputy President & Corporate Executive (Representative Corporate Executive).

How many Mizuho Financial Group (MFG) shares does Masayuki Sugawara own?

Masayuki Sugawara owned 29,997 shares of Mizuho Financial Group’s common stock as of December 31, 2025. This disclosed holding provides insight into his direct equity stake in the company alongside his upcoming responsibilities as Deputy President & Corporate Executive.

When do the announced executive changes at Mizuho Financial Group (MFG) become effective?

The executive changes become effective on April 1, 2026. From that date, Masayuki Sugawara will serve as Deputy President & Corporate Executive (Representative Corporate Executive) and Hidekatsu Take will assume the role of Member of the Board of Directors, Chairperson (Kaicho).

What prior roles has Masayuki Sugawara held within the Mizuho group?

Masayuki Sugawara has held roles including Senior Managing Corporate Executive, Deputy President (Representative Director) at Mizuho Bank, Senior Executive Officer, Group Executive Officer for East Asia, Chairman of Mizuho Bank (China) Ltd., and earlier regional and branch leadership positions since joining the group in 1988.