Shiro Shiraishi

CIK: 0002116717

Transaction Breakdown

Open Market Buys (P)0 (0.0%)

High conviction signal

Open Market Sales (S)0 (0.0%)

Position reduction

Option Exercises (M)1 (25.0%)

Derivative conversions

Awards (A)2 (50.0%)

Compensation grants

Other (G, F, J, C, D, …)1 (25.0%)

Gifts, tax withholding, conversions, dispositions to the issuer and other codes

Companies & Roles (1)

MFG

MIZUHO FINANCIAL GROUP INC

DirectorOfficer

Discretionary Trading P&L

Holdings

Transaction History (4 total)

MFG
MIZUHO FINANCIAL GROUP INC
Jul 24, 2026
Award(A)
Phantom Stock Units
Direct
3.7K shares-
MFG
MIZUHO FINANCIAL GROUP INC
Jul 24, 2026
Award(A)
Phantom Stock Units - Retirement
Direct
540 shares-
MFG
MIZUHO FINANCIAL GROUP INC
Jul 1, 2026
Exercise(M)
Direct
1.3K shares-
MFG
MIZUHO FINANCIAL GROUP INC
Jul 1, 2026
Disposition(D)
Direct
526 shares at avg. $25332.29$13.3M

		Type	Shares	Price		Ownership
Jul 24, 2026	MFG MIZUHO FINANCIAL GROUP INC	Award(A) Phantom Stock Units	3,680	-	-	Direct
Jul 24, 2026	MFG MIZUHO FINANCIAL GROUP INC	Award(A) Phantom Stock Units - Retirement	540	-	-	Direct
Jul 1, 2026	MFG MIZUHO FINANCIAL GROUP INC	Exercise(M)	1,315	-	$0	Direct
Jul 1, 2026	MFG MIZUHO FINANCIAL GROUP INC	Disposition(D)	526	$25332.29	$13,324,785	Direct

1-4 of 4 transactions

About Shiraishi Shiro

Shiraishi Shiro (SEC CIK 0002116717) files insider reports with the SEC as Director of MIZUHO FINANCIAL GROUP INC (MFG).

Signal8 holds 3 ownership filings by Shiraishi Shiro (1 Form 3, 2 Form 4), filed between Mar 18, 2026 and Jul 28, 2026. Those filings report 4 transactions, from Jul 1, 2026 to Jul 24, 2026. Signal8's Form 4 history starts in Sep 2024.

The business address on Shiraishi Shiro's filings is in TOKYO.

Recent filings by Shiraishi Shiro

Jul 24, 2026: Grants or awards of MFG derivative securities (2 lines, Form 4, code A).
Jul 1, 2026: Option exercise of MFG shares (Form 4, code M).
Jul 1, 2026: Disposition to issuer transaction of MFG shares (Form 4, code D).

Other insiders filing for MIZUHO FINANCIAL GROUP INC (MFG)

How to read Form 4 transaction codes