Mizuho Financial Group, Inc.

MFGNYSEFinancial Services● Active

$9.61

+$0.09(+0.95%)

Market Cap$117.2B

P/E Ratio—

52W High$10.28

52W Low$5.35

Avg Volume4.3M

Open$9.70

Beta0.39

Insider Trades Ownership Employees

Mizuho Financial Group, Inc. (MFG) Insider Trading

Form 4 buy vs sell counts, ratio, and sentiment — switch this quarter or last 12 months; chart and transactions below.

SEC EDGAR · FMP · MFG · as of Jun 8, 2026

Activity summary

Buy transactions

P-Purchase only

Sell transactions

12 Months

Buy/Sell ratio

0.00

Buy/Sell (by trades)

Overall sentiment

BEARISH

↑ Buy 0%Active transactions only · RSU vesting excluded100% Sell ↓

Mizuho Financial Group, Inc. insiders have been primarily selling shares over the past 12 Months. Selling activity is often driven by pre-scheduled Rule 10b5-1 plans rather than negative sentiment toward the company.

▸ Source: SEC EDGAR · Form 3 & 4 · via Financial Modeling Prep · Buy = P-Purchase only · Sell = S-Sale only

As of Jun 8, 2026

MFG insider buying and selling by quarter

MFG insider selling · MFG insider buying stocks · quarterly insider activity

Total insider buying (incl. awards)Total insider selling

65K32K0

2022 Q4

2026 Q1

2026 Q2

Mobile shows last 4Q · Desktop shows full 8Q

▸ Source: SEC EDGAR · Form 3 & 4 · via Financial Modeling Prep · last 8 quarters

As of Jun 8, 2026

Active insiders

Most active in past 12 months · MFG ceo insider trading

Showing all insiders · Click a card to filter the transactions table below

▸ Aggregated from reportingName · top 5 by trade count (12M) · no extra API

Recent insider transactions

MFG executive sell shares · MFG board member insider trading · MFG insider trading SEC filing

Showing 10 most recent · Common Stock · Form 4 only

Scroll horizontally to see all columns

Date	Insider	Type	Shares	Price	Value	After trans.	Filing
Jun 1, 2026	Kurosawa Tatsuya Group Chief Governance Officer	Option	719	—	—	4,824	Form 4
Jun 1, 2026	Kurosawa Tatsuya Group Chief Governance Officer	Other	288	$12993.09	$3.74M⚡	4,536	Form 4
Jun 1, 2026	Komatsu Minori See Remarks	Option	659	—	—	659	Form 4
Jun 1, 2026	Komatsu Minori See Remarks	Other	264	$11910.34	$3.14M⚡	395	Form 4
Jun 1, 2026	Koyama Takeshi Group Chief Strategy Officer	Option	1,048	—	—	10,032	Form 4
Jun 1, 2026	Koyama Takeshi Group Chief Strategy Officer	Other	420	$18948.26	$7.96M⚡	9,612	Form 4
Jun 1, 2026	Samejima Makoto Group Chief Financial Officer	Option	1,703	—	—	4,893	Form 4
Jun 1, 2026	Samejima Makoto Group Chief Financial Officer	Other	682	$30768.37	$20.98M⚡	4,211	Form 4
Jun 1, 2026	Akamatsu Fusae Group Chief Compliance Officer	Option	778	—	—	778	Form 4
Jun 1, 2026	Akamatsu Fusae Group Chief Compliance Officer	Other	312	$14075.85	$4.39M⚡	466	Form 4

Kurosawa Tatsuya

Group Chief Governance Officer

Option

Date

Jun 1

719

Price

—

Value

—

View Form 4 on SEC.gov

Kurosawa Tatsuya

Group Chief Governance Officer

Other

Date

Jun 1

288

Price

$12993.09

Value

$3.74M ⚡

View Form 4 on SEC.gov

Komatsu Minori

See Remarks

Option

Date

Jun 1

659

Price

—

Value

—

View Form 4 on SEC.gov

Komatsu Minori

See Remarks

Other

Date

Jun 1

264

Price

$11910.34

Value

$3.14M ⚡

View Form 4 on SEC.gov

Koyama Takeshi

Group Chief Strategy Officer

Option

Date

Jun 1

1,048

Price

—

Value

—

View Form 4 on SEC.gov

Koyama Takeshi

Group Chief Strategy Officer

Other

Date

Jun 1

420

Price

$18948.26

Value

$7.96M ⚡

View Form 4 on SEC.gov

Samejima Makoto

Group Chief Financial Officer

Option

Date

Jun 1

1,703

Price

—

Value

—

View Form 4 on SEC.gov

Samejima Makoto

Group Chief Financial Officer

Other

Date

Jun 1

682

Price

$30768.37

Value

$20.98M ⚡

View Form 4 on SEC.gov

Akamatsu Fusae

Group Chief Compliance Officer

Option

Date

Jun 1

778

Price

—

Value

—

View Form 4 on SEC.gov

Akamatsu Fusae

Group Chief Compliance Officer

Other

Date

Jun 1

312

Price

$14075.85

Value

$4.39M ⚡

View Form 4 on SEC.gov

▸ Source: SEC EDGAR · Form 4 filings · ⚡ = value ≥ $1M · Award/Option price shows —

About MFG insider trading

MFG insider trades

Mizuho Financial Group, Inc. (MFG) insider trading data is sourced from SEC Form 4 filings submitted by corporate insiders, including Kurosawa Tatsuya (Group Chief Governance Officer), Komatsu Minori (See Remarks), Koyama Takeshi (Group Chief Strategy Officer). Over the past 12 months, 5 insiders have filed transactions with the SEC. MFG insiders have been primarily selling, which may reflect pre-scheduled Rule 10b5-1 plan executions.

For Mizuho Financial Group, Inc.'s institutional ownership breakdown and insider ownership percentage, see the Ownership tab → Ownership tab →

Buy/Sell signal logic

acquisitionOrDisposition field:

A = Acquisition (buy) · D = Disposition (sell)

RSU vesting (M-Exempt) excluded from sentiment

Form 4SEC filing required within 2 business days of any insider transaction

10b5-1Pre-scheduled trading plan that allows insiders to sell on autopilot

Open MktDirect purchase or sale on the open market (excludes awards, options)

Ownership SEC filings Financial statements Price history Forecast & ratings Earnings

Frequently asked questions

MFG insider trading · 5 questions

The insiders of Mizuho Financial Group, Inc. (MFG) include executives and directors such as Kurosawa Tatsuya (Group Chief Governance Officer), Komatsu Minori (See Remarks), Koyama Takeshi (Group Chief Strategy Officer), among others. Over the past 12 months, 5 insiders have filed Form 4 transactions with the SEC. Insider transactions are required to be reported within 2 business days of the trade date.

MFG board member insider tradingwho are MFG insidersMFG insider rosterMizuho Financial Group, Inc. executives insider activity

▸ Source: FMP /stable/insider-trading/search · SEC EDGAR Form 3 & 4 · acquisitionOrDisposition A=Buy, D=Sell · RSU vesting (M-Exempt) excluded from sentiment bar · As of Jun 8, 2026