# EDGAR Filing Document

**Accession Number:** 0001335730
**File Stem:** 0001193125-25-180292
**Filing Date:** 2025-8
**Character Count:** 5274
**Document Hash:** fdf63baea1e768a073aa64ff3858e572
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001193125-25-180292.hdr.sgml**: 20250814

**ACCESSION NUMBER**: 0001193125-25-180292

**CONFORMED SUBMISSION TYPE**: 6-K

**PUBLIC DOCUMENT COUNT**: 2

**CONFORMED PERIOD OF REPORT**: 20250814

**FILED AS OF DATE**: 20250814

**DATE AS OF CHANGE**: 20250814

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** MIZUHO FINANCIAL GROUP INC
- **CENTRAL INDEX KEY:** 0001335730
- **STANDARD INDUSTRIAL CLASSIFICATION:** NATIONAL COMMERCIAL BANKS [6021]
- **ORGANIZATION NAME:** 02 Finance
- **EIN:** 000000000

**FILING VALUES:**
- **FORM TYPE:** 6-K
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 001-33098
- **FILM NUMBER:** 251214015

**BUSINESS ADDRESS:**
- **STREET 1:** 1-5-5, OTEMACHI
- **CITY:** CHIYODA-KU, TOKYO
- **STATE:** M0
- **ZIP:** 100-8176
- **BUSINESS PHONE:** 81-3-5224-1111

**MAIL ADDRESS:**
- **STREET 1:** 1-5-5, OTEMACHI
- **CITY:** CHIYODA-KU, TOKYO
- **STATE:** M0
- **ZIP:** 100-8176

**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 August 2025** 

**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 ☐

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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NO. 333-282497) AND TO BE A PART OF SUCH PROSPECTUS FROM THE DATE ON WHICH THIS REPORT IS FURNISHED, TO THE EXTENT NOT SUPERSEDED BY DOCUMENTS OR REPORTS SUBSEQUENTLY FILED OR FURNISHED.

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**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.

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| | |
|:---|:---|
| Date: | August 14, 2025 |
| Mizuho Financial Group, Inc. | Mizuho Financial Group, Inc. |
| By: | /s/ Takefumi Yonezawa |
| Name: | Takefumi Yonezawa |
| Title: | Senior Managing Corporate Executive / Group CFO |

---

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![LOGO](g938105g0812124005093.jpg)

August 14, 2025

To whom it may concern:

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| | |
|:---|:---|
| Company Name: | Mizuho Financial Group, Inc. |
| Representative: | Masahiro Kihara, President & CEO |
| Head Office: | 1-5-5 Otemachi, Chiyoda-ku, Tokyo |
| Stock Code Number: | 8411 |
|  | (Tokyo Stock Exchange (Prime Market)) |

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**<u>Announcement regarding Capital Ratio as of June 30, 2025</u>**

Mizuho Financial Group, Inc. hereby announces Capital Ratio as of June 30, 2025, as shown in the appendix.

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**<u>Capital Ratio</u>**

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| | | | | |
|:---|:---|:---|:---|:---|
|  | Consolidated | | (%, Billions of yen) | |
| **Mizuho Financial Group**<br> International Standard | As of<br>June 30, 2025 | Change | As of<br>March 31, 2025 |  |
| (1) Total Capital Ratio | **17.93** | 0.18 | 17.75 |  |
| (2) Tier 1 Capital Ratio | **15.96** | 0.31 | 15.65 |  |
| (3) Common Equity Tier 1 Capital Ratio | **13.35** | 0.12 | 13.23 |  |
| (4) Total Capital | **13075.9** | 320.1 | 12755.7 |  |
| (5) Tier 1 Capital | **11640.3** | 392.1 | 11248.2 |  |
| (6) Common Equity Tier 1 Capital | **9739.3** | 233.1 | 9506.2 |  |
| (7) Risk-weighted Assets | **72911.5** | 1067.1 | 71844.4 |  |
| (8) Total Required Capital (7)x8% | **5832.9** | 85.3 | 5747.5 |  |
|  | Consolidated | Consolidated | Consolidated | Non-Consolidated |
| **Mizuho Bank**<br> International Standard | As of<br>June 30, 2025 | Change | As of<br>March 31, 2025 | As of<br>June 30, 2025 |
| (1) Total Capital Ratio | **16.50** | 0.23 | 16.27 | **15.67** |
| (2) Tier 1 Capital Ratio | **14.41** | 0.35 | 14.06 | **13.40** |
| (3) Common Equity Tier 1 Capital Ratio | **11.57** | 0.15 | 11.42 | **10.33** |
| (4) Total Capital | **11060.4** | 341.5 | 10718.8 | **9649.4** |
| (5) Tier 1 Capital | **9658.7** | 391.3 | 9267.3 | **8251.4** |
| (6) Common Equity Tier 1 Capital | **7756.5** | 227.4 | 7529 | **6359.9** |
| (7) Risk-weighted Assets | **66999.0** | 1119.5 | 65879.4 | **61561.9** |
| (8) Total Required Capital (7)x8% | **5359.9** | 89.5 | 5270.3 | **4924.9** |
|  | Consolidated | Consolidated | Consolidated | Non-Consolidated |
| **Mizuho Trust & Banking**<br> International Standard | As of<br>June 30, 2025 | Change | As of<br>March 31, 2025 | As of<br>June 30, 2025 |
| (1) Total Capital Ratio | **32.62** | 1.02 | 31.60 | **31.93** |
| (2) Tier 1 Capital Ratio | **32.60** | 1.00 | 31.60 | **31.92** |
| (3) Common Equity Tier 1 Capital Ratio | **32.60** | 1.00 | 31.60 | **31.92** |
| (4) Total Capital | **507.4** | 13.5 | 493.9 | **470.5** |
| (5) Tier 1 Capital | **507.2** | 13.4 | 493.8 | **470.3** |
| (6) Common Equity Tier 1 Capital | **507.2** | 13.4 | 493.8 | **470.3** |
| (7) Risk-weighted Assets | **1555.7** | (6.8) | 1562.5 | **1473.4** |
| (8) Total Required Capital (7)x8% | **124.4** | (0.5) | 125 | **117.8** |

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