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6-K

Mizuho Financial Group Inc (MFG)

6-K 2026-07-01 For: 2026-07-01
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Added on July 08, 2026

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 July 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 ofprincipal 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NO. 333-282497) AND TO BE A PART OF SUCH PROSPECTUS FROM THE DATE ON WHICH THIS REPORT IS FURNISHED, TO THE EXTENT NOT SUPERSEDED BY DOCUMENTS OR REPORTS SUBSEQUENTLY FILED OR FURNISHED.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: July 1, 2026
Mizuho Financial Group, Inc.
By: /s/ Makoto Samejima
Name: Makoto Samejima
--- ---
Title: Senior Managing Corporate Executive / Group CFO

July 1, 2026

To whom it may concern:

Mizuho Financial Group, Inc.

Filing of Extraordinary Report

Mizuho Financial Group, Inc. (“Mizuho Financial Group”) hereby announces that it filed today an extraordinary report concerning the results of the exercise of voting rights at the ordinary general meeting of shareholders of Mizuho Financial Group.

1. Reason for filing

Given that the proposal was adopted at the 24th Ordinary General Meeting of Shareholders of Mizuho Financial Group held on June 26, 2026, Mizuho Financial Group filed the extraordinary report pursuant to Article 24-5, Paragraph 4 of the Financial Instruments and Exchange Act and Article 19, Paragraph 2, Item 9-2 of the Cabinet Office Ordinance on Disclosure of Corporate Affairs.

2. Description of report

(1) Date on which the ordinary general meeting of shareholders was held
June 26, 2026
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(2) Matters to be resolved
--- ---
Company proposal
--- --- ---
Proposal 1: Appointment of fourteen (14) directors
It was proposed that Mr. Takashi Tsukioka, Mr. Kotaro Ohno, Mr. Hiromichi Shinohara, Ms. Yumiko Noda, Mr. Takakazu Uchida, Mr. Masahiko Tezuka, Ms. Yuki Ikuno, Mr. Keiji Kojima,<br>Mr. Hidekatsu Take, Mr. Makoto Hitomi, Mr. Masahiro Kihara, Ms. Fusae Akamatsu, Mr. Shiro Shiraishi and Mr. Makoto Samejima, fourteen (14) in total, be appointed to assume the office of director.

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(3) Number of voting rights for approval, disapproval and abstention for the matters to be resolved, and therequirement for adoption and voting results thereof
Matters to be resolved Number of<br>approval<br>(units) Number of<br>disapproval<br>(units) Number of<br>abstention<br>(units) Approval<br>rate (%) Voting<br>result
--- --- --- --- --- --- --- --- --- --- --- --- --- --- --- ---
Proposal 1
Takashi Tsukioka 17,489,379 820,032 30,761 95 Adopted
Kotaro Ohno 17,873,646 463,776 2,756 97 Adopted
Hiromichi Shinohara 17,894,535 442,889 2,756 97 Adopted
Yumiko Noda 18,248,647 88,479 2,756 99 Adopted
Takakazu Uchida 13,939,258 4,398,147 2,756 75 Adopted
Masahiko Tezuka 18,246,131 90,992 2,756 99 Adopted
Yuki Ikuno 18,254,014 83,111 2,756 99 Adopted
Keiji Kojima 18,225,752 111,683 2,756 99 Adopted
Hidekatsu Take 15,288,954 3,021,225 29,663 83 Adopted
Makoto Hitomi 16,734,867 1,602,592 2,756 90 Adopted
Masahiro Kihara 15,157,123 3,152,998 29,663 82 Adopted
Fusae Akamatsu 18,192,843 144,271 2,756 98 Adopted
Shiro Shiraishi 18,188,561 148,552 2,756 98 Adopted
Makoto Samejima 18,171,356 165,762 2,756 98 Adopted

Note: The requirement for adoption of the proposal is as follows:

Approval of a majority of the voting rights held by the shareholders present at the meeting who hold in aggregate<br>not less than one-third (1/3) of the voting rights of the shareholders entitled to exercise their voting rights is required for the adoption of the proposal.
(4) Reason for not counting a portion of the voting rights of the shareholders present at the ordinary generalmeeting of shareholders
--- ---

Since the adoption or rejection of the proposal was conclusively decided by the exercise of the voting rights prior to the date of this general meeting and the number of voting rights of shareholders in attendance at this general meeting, whose approval or disapproval Mizuho Financial Group was able to confirm, the number of voting rights for approval, disapproval and abstention shown in the above table does not include a portion of those of the shareholders present at the general meeting.

-End-

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