STOCK TITAN

Mizuho Financial Group (MFG) officer exercises phantom units and disposes shares

Filing Impact
(Very High)
Filing Sentiment
(Neutral)
Form Type
4

Rhea-AI Filing Summary

Mizuho Financial Group officer Naoshi Inomata reported a mix of stock acquisitions and dispositions tied to equity compensation awards. On July 1, 2026, he acquired 6,261 shares of common stock through exercises or conversions of phantom stock units and disposed of 2,505 shares back to the issuer in a non-market transaction. Following these movements, he directly held 23,034 shares of common stock. The filing also shows multiple phantom stock unit grants, some of which vested and were settled for cash at JPY 7,814 per share, while others continue to vest in three equal installments beginning on July 1, 2025 and July 1, 2026.

Positive

  • None.

Negative

  • None.
Insider Inomata Naoshi
Role See Remarks
Type Security Shares Price Value
Exercise Phantom Stock Units 1,712 $0.00 --
Exercise Phantom Stock Units 1,974 $0.00 --
Exercise Phantom Stock Units 2,575 $0.00 --
Exercise Common Stock 6,261 $0.00 --
Disposition Common Stock 2,505 $120,641.41 $302.21M
Holdings After Transaction: Phantom Stock Units — 3,426 shares (Direct, null); Common Stock — 23,034 shares (Direct, null)
Footnotes (1)
  1. Each phantom stock unit represents a contingent right to receive one share of Issuer Common Stock, which will be settled in cash or common stock upon settlement at the Issuer's election. Represents the portion of the phantom stock units that vested and being settled in cash. The price reported herein was converted from Japanese yen to United States dollars at a conversion price of JPY 1 to U.S. $0.006163328. These shares were disposed of at a price per share of JPY7,814. These phantom stock units vest in three equal installments beginning July 1, 2026. These phantom stock units vest in three equal installments beginning July 1, 2025. These phantom stock units vested on July 1, 2026.
Shares disposed to issuer 2,505 shares Common Stock, disposition to issuer on July 1, 2026
Shares acquired via exercise 6,261 shares Common Stock obtained through derivative exercises on July 1, 2026
Post-transaction holdings 23,034 shares Common Stock directly held after July 1, 2026 transactions
Cash settlement price JPY 7,814 per share Price for vested phantom stock units settled in cash
Phantom units exercised (tranche 1) 2,575 units Phantom Stock Units exercised into Common Stock
Phantom units exercised (tranche 2) 1,974 units Phantom Stock Units exercised into Common Stock
Phantom units exercised (tranche 3) 1,712 units Phantom Stock Units exercised into Common Stock
Phantom Stock Units financial
"The filing lists several transactions in "Phantom Stock Units" that convert into Common Stock."
Phantom stock units are company promises that pay a cash or stock-equivalent award tied to the firm’s share price or value growth, but they do not issue actual shares. Think of them as a bonus check that moves with the stock like a mirror rather than handing over an ownership slice. Investors care because these awards can affect a company’s future cash obligations, executive incentives and reported expenses without causing share dilution.
derivative security financial
"Transaction code M is described as "Exercise or conversion of derivative security" in the data."
A derivative security is a financial contract whose value comes from the price or performance of something else, such as a stock, bond, commodity, or market index. For investors it acts like an insurance policy or a wager: it can be used to protect against losses, lock in prices, or amplify gains and losses, so it can change a portfolio’s risk and potential return without owning the underlying asset directly.
Disposition to issuer financial
"The common stock transaction with code D is labeled "Disposition to issuer"."
contingent right financial
"Each phantom stock unit represents a "contingent right" to receive one share of Common Stock."
See more from StockTitan in Google Search and AI answers. Adds StockTitan as a preferred source · opens Google
Add on Google
Learn about SEC filing dates

FAQ

What insider transactions did Naoshi Inomata report at Mizuho Financial Group (MFG)?

Naoshi Inomata reported acquiring common shares via phantom stock unit exercises and disposing of shares back to the issuer. The transactions reflect routine equity compensation activity, including conversions of phantom units into common stock and cash settlements of vested awards at a stated yen price.

How many Mizuho Financial Group (MFG) shares did Naoshi Inomata acquire and dispose of?

On July 1, 2026, Naoshi Inomata acquired 6,261 shares of Mizuho Financial Group common stock through derivative exercises and disposed of 2,505 shares back to the issuer. After these transactions, he directly held 23,034 common shares according to the Form 4 disclosure.

What are phantom stock units in the Mizuho Financial Group (MFG) Form 4 filing?

The Form 4 states each phantom stock unit represents a contingent right to receive one share of Mizuho Financial Group common stock. These units are settled in cash or common stock at the issuer’s election, and several tranches vest on specified dates in equal installments.

At what price were some Mizuho Financial Group (MFG) phantom stock units settled?

A portion of the phantom stock units that vested was settled for cash at a price of JPY 7,814 per share. The filing notes this price was converted to U.S. dollars using a rate of JPY 1 to $0.006163328 for reporting purposes.

How many Mizuho Financial Group (MFG) shares does Naoshi Inomata hold after the reported transactions?

After the July 1, 2026 transactions, the Form 4 reports that Naoshi Inomata directly holds 23,034 shares of Mizuho Financial Group common stock. This figure reflects the combined effect of the derivative exercises and the disposition of shares back to the issuer on that date.

How do Naoshi Inomata’s phantom stock units at Mizuho Financial Group (MFG) vest?

The filing explains that certain phantom stock unit grants vest in three equal installments beginning July 1, 2025, while others vest in three equal installments beginning July 1, 2026. Another tranche is disclosed as having vested on July 1, 2026, triggering settlement activity.
SEC Form 4
FORM 4UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940
OMB APPROVAL
OMB Number:3235-0287
Estimated average burden
hours per response:0.5
Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).
Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.
1. Name and Address of Reporting Person*
Inomata Naoshi

(Last)(First)(Middle)
C/O MIZUHO FINANCIAL GROUP, INC.
1-5-5 OTEMACHI, CHIYODA-KU

(Street)
TOKYOJAPAN100-8176

(City)(State)(Zip)

JAPAN

(Country)
2. Issuer Name and Ticker or Trading Symbol
MIZUHO FINANCIAL GROUP INC [ MFG ]
5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
Director10% Owner
XOfficer (give title below)Other (specify below)
See Remarks
2a. Foreign Trading Symbol
3. Date of Earliest Transaction (Month/Day/Year)
07/01/2026
6. Individual or Joint/Group Filing (Check Applicable Line)
XForm filed by One Reporting Person
Form filed by More than One Reporting Person
4. If Amendment, Date of Original Filed (Month/Day/Year)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3) 2. Transaction Date (Month/Day/Year)2A. Deemed Execution Date, if any (Month/Day/Year)3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4)
CodeVAmount(A) or (D)Price
Common Stock07/01/2026M(1)6,261A$023,034D
Common Stock07/01/2026D(1)2,505(2)D$120,641.41(2)20,529D
Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3) 2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (Month/Day/Year)3A. Deemed Execution Date, if any (Month/Day/Year)4. Transaction Code (Instr. 8) 5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 6. Date Exercisable and Expiration Date (Month/Day/Year)7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4) 8. Price of Derivative Security (Instr. 5) 9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4) 10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 11. Nature of Indirect Beneficial Ownership (Instr. 4)
CodeV(A)(D)Date ExercisableExpiration DateTitleAmount or Number of Shares
Phantom Stock Units(1)07/01/2026M1,712 (3) (3)Common Stock1,712$03,426D
Phantom Stock Units(1)07/01/2026M1,974 (4) (4)Common Stock1,974$01,975D
Phantom Stock Units(1)07/01/2026M2,575 (5) (5)Common Stock2,575$00D
Explanation of Responses:
1. Each phantom stock unit represents a contingent right to receive one share of Issuer Common Stock, which will be settled in cash or common stock upon settlement at the Issuer's election.
2. Represents the portion of the phantom stock units that vested and being settled in cash. The price reported herein was converted from Japanese yen to United States dollars at a conversion price of JPY 1 to U.S. $0.006163328. These shares were disposed of at a price per share of JPY7,814.
3. These phantom stock units vest in three equal installments beginning July 1, 2026.
4. These phantom stock units vest in three equal installments beginning July 1, 2025.
5. These phantom stock units vested on July 1, 2026.
Remarks:
Head of Domestic Retail Business / Co-Head of Retail & Business Banking Company
/s/ Yuki Nishii, as Attorney-In-Fact07/06/2026
** Signature of Reporting PersonDate
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
* Form 4: SEC 1474 (03-26)