NYSE:MFG

Mizuho Financial Group Stock Insider Trading

Financial Services > Banks - Regional

Buy MFG

*Your capital is at risk

$9.52

-0.270 (-2.76%)

At Close: Jun 05, 2026

Mizuho Financial Group Stock Insider Power

Based on the 100 latest insides trades, we have calculated the insider power to be negative at -84.86. In total, the insiders bought 350.85K and sold 1.97K MFG shares in the last 100 trades. The insider score can be negative despite buy/sell ratio being positive. The score focuses on the quality of the trades.

Insider Power (Last 100 transactions)	-84.86
● Buy	350.85K shares
● Sell	1.97K shares
95% Buy Activity Moderate Positive Correlation
Sell Signal High Confidence Jun 01, 2026 Analysis Breakdown: Strongly supported by a very low Insider Power Score of -84.86. Partially supported by a positive historical correlation. Confidence increased due to high data reliability score of 100.

Historical Insider Trades

Date	Type	Person	Role	Amount
Apr 01, 2026 Buy	Common Stock	Hihara Shinichiro Chief Information Officer	Officer	0 Value: $0
Apr 01, 2026 Buy	Common Stock	Hihara Shinichiro Chief Information Officer	Officer	0 Value: $0
Apr 01, 2026 Buy	Phantom Stock Units - Retirement	Hihara Shinichiro Chief Information Officer	Officer	4 020 Value: $33.7K
Apr 01, 2026 Buy	Phantom Stock Units	Hihara Shinichiro Chief Information Officer	Officer	2 562 Value: $21.5K
Apr 01, 2026 Buy	Phantom Stock Units - Ordinary Employee Share Compensation	Komatsu Minori Chief Human Resources Officer	Officer	659 Value: $6K
Apr 01, 2026 Buy	Phantom Stock Units - Ordinary Employee Share Compensation	Akamatsu Fusae Chief Compliance Officer	Officer	778 Value: $7K
Apr 01, 2026 Buy	Common Stock	Samejima Makoto Chief Financial Officer	C-Suite Officer	0 Value: $0
Apr 01, 2026 Buy	Phantom Stock Units - Ordinary Employee Share Compensation	Samejima Makoto Chief Financial Officer	C-Suite Officer	1 703 Value: $14.3K
Mar 18, 2026 Buy	Common Stock	Shiraishi Shiro Chief Risk Officer	Officer	0 Value: $0
Mar 18, 2026 Buy	Phantom Stock Units - Retirement	Shiraishi Shiro Chief Risk Officer	Officer	2 150 Value: $16.6K
Mar 18, 2026 Buy	Phantom Stock Units	Shiraishi Shiro Chief Risk Officer	Officer	3 947 Value: $30.5K
Mar 18, 2026 Buy	Common Stock	Uchida Takakazu Director	Director	0 Value: $0
Mar 18, 2026 Buy	Phantom Stock Units - Retirement	Uchida Takakazu Director	Director	1 650 Value: $12.8K
Mar 18, 2026 Buy	Common Stock	Hirama Hisaaki Director	Director	0 Value: $0
Mar 18, 2026 Buy	Common Stock	Hirama Hisaaki Director	Director	0 Value: $0
Mar 18, 2026 Buy	Phantom Stock Units - Retirement	Hirama Hisaaki Director	Director	28 999 Value: $224.5K
Mar 18, 2026 Buy	Common Stock	Sugawara Masayuki See Remarks	Officer	0 Value: $0
Mar 18, 2026 Buy	Common Stock	Sugawara Masayuki See Remarks	Officer	0 Value: $0
Mar 18, 2026 Buy	Common Stock	Sugawara Masayuki See Remarks	Officer	0 Value: $0
Mar 18, 2026 Buy	Phantom Stock Units - Retirement	Sugawara Masayuki See Remarks	Officer	23 848 Value: $184.6K
Mar 18, 2026 Buy	Phantom Stock Units	Sugawara Masayuki See Remarks	Officer	1 943 Value: $15.0K
Mar 18, 2026 Buy	Common Stock	Take Hidekatsu See Remarks	Officer	0 Value: $0
Mar 18, 2026 Buy	Common Stock	Take Hidekatsu See Remarks	Officer	0 Value: $0
Mar 18, 2026 Buy	Phantom Stock Units - Retirement	Take Hidekatsu See Remarks	Officer	26 454 Value: $204.8K
Mar 18, 2026 Buy	Phantom Stock Units	Take Hidekatsu See Remarks	Officer	2 466 Value: $19.1K

About Insider Power

Insider Power is a proprietary algorithm developed by StockInvest.us to evaluate the significance of insider transactions. The calculation considers the size, type, and timing of transactions, as well as the insider’s role within the company.

It is important to note that, in general, there is little to no correlation between insider transactions and short-term stock price movements. In one of our studies, only 0.22%^* of stocks with insider activity showed a measurable correlation — and even then, it was unclear whether the effect was caused by insider actions or simply by the stock’s broader trend.

While our algorithms are designed to highlight potentially meaningful signals, these cannot be regarded as statistically significant on their own. Insider trading activity should therefore be seen as informative rather than as direct trading guidance. The Insider Power metric was created to present this information in a clearer and more accessible way, helping investors better understand the possible context of insider activity.

* October 6th, 2025 - Tested on 5562 stocks

ABOUT MIZUHO FINANCIAL GROUP INC

Mizuho Financial Group, Inc., together with its subsidiaries, engages in banking, trust, securities, and other businesses related to financial services in Japan, the Americas, Europe, Asia/Oceania, and internationally. It operates through five segments: Retail & Business Banking Company, Corporate & Institutional Company, Global Corporate Company, Global Markets Company, and Asset Management Company. The company provides deposit products; syndica...

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