NYSE:MFG

Mizuho Financial Group Stock Insider Trading

Financial Services > Banks - Regional

Buy MFG

*Your capital is at risk

$10.71

+0.0200 (+0.187%)

At Close: Aug 07, 2026

Mizuho Financial Group Stock Insider Power

Based on the 100 latest insides trades, we have calculated the insider power to be negative at -99.95. In total, the insiders bought 221.03K and sold 26.27K 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)	-99.95
● Buy	221.03K shares
● Sell	26.27K shares
87% Buy Activity Negligible or No Correlation
Sell Signal Medium Confidence Jun 01, 2026 Analysis Breakdown: Strongly supported by a very low Insider Power Score of -99.95. Confidence increased due to high data reliability score of 100.

Historical Insider Trades

Date	Type	Person	Role	Amount
Jul 24, 2026 Buy	Phantom Stock Units - Retirement A-Award	Tezuka Masahiko Director	Director	490 Value: $5K
Jul 24, 2026 Buy	Phantom Stock Units A-Award	Kurosawa Tatsuya See Remarks	Officer	3 513 Value: $37.3K
Jul 24, 2026 Buy	Phantom Stock Units - Retirement A-Award	Kojima Keiji Director	Director	490 Value: $5K
Jul 24, 2026 Buy	Phantom Stock Units - Retirement A-Award	Shinohara Hiromichi Director	Director	490 Value: $5K
Jul 24, 2026 Buy	Phantom Stock Units - Retirement A-Award	Shiraishi Shiro See Remarks	Officer	540 Value: $6K
Jul 24, 2026 Buy	Phantom Stock Units A-Award	Shiraishi Shiro See Remarks	Officer	3 680 Value: $39.1K
Jul 24, 2026 Buy	Phantom Stock Units - Retirement A-Award	Samejima Makoto See Remarks	Officer	480 Value: $5K
Jul 24, 2026 Buy	Phantom Stock Units - Ordinary Employee Share Compensation J-Other	Samejima Makoto See Remarks	Officer	1 028 Value: $10.9K
Jul 24, 2026 Buy	Phantom Stock Units A-Award	Yagi Minako See Remarks	Officer	3 858 Value: $41.0K
Jul 24, 2026 Buy	Phantom Stock Units - Retirement A-Award	Yagi Minako See Remarks	Officer	570 Value: $6K
Jul 24, 2026 Buy	Phantom Stock Units - Retirement A-Award	Koyama Takeshi See Remarks	Officer	500 Value: $5K
Jul 24, 2026 Buy	Phantom Stock Units - Ordinary Employee Share Compensation J-Other	Koyama Takeshi See Remarks	Officer	881 Value: $9K
Jul 24, 2026 Buy	Phantom Stock Units A-Award	Akita Natsumi See Remarks	Officer	3 858 Value: $41.0K
Jul 24, 2026 Buy	Phantom Stock Units - Retirement A-Award	Akita Natsumi See Remarks	Officer	540 Value: $6K
Jul 24, 2026 Buy	Phantom Stock Units - Retirement A-Award	Ohno Kotaro Director	Director	490 Value: $5K
Jul 24, 2026 Buy	Phantom Stock Units A-Award	Kihara Masahiro See Remarks	Officer	15 391 Value: $163.6K
Jul 24, 2026 Buy	Phantom Stock Units - Retirement A-Award	Kihara Masahiro See Remarks	Officer	1 680 Value: $17.9K
Jul 24, 2026 Buy	Phantom Stock Units A-Award	Matsuura Shuji See Remarks	Officer	3 680 Value: $39.1K
Jul 24, 2026 Buy	Phantom Stock Units - Retirement A-Award	Matsuura Shuji See Remarks	Officer	610 Value: $6K
Jul 01, 2026 Buy	Phantom Stock Units M-Exempt	Inomata Naoshi See Remarks	Officer	2 575 Value: $25.2K
Jul 01, 2026 Buy	Phantom Stock Units M-Exempt	Inomata Naoshi See Remarks	Officer	1 974 Value: $19.3K
Jul 01, 2026 Buy	Phantom Stock Units M-Exempt	Inomata Naoshi See Remarks	Officer	1 712 Value: $16.8K
Jul 01, 2026 Sell	Common Stock D-Return	Inomata Naoshi See Remarks	Officer	2 505 Value: $0.30B
Jul 01, 2026 Buy	Common Stock M-Exempt	Inomata Naoshi See Remarks	Officer	6 261 Value: $61.4K
Jul 01, 2026 Buy	Phantom Stock Units M-Exempt	Kaminoyama Nobuhiro See Remarks	Officer	2 451 Value: $24.0K

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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