Mizuho Financial MFG Insider Ownership

NYSE MFG

$10.06 -0.11 (-1.08%)

As of: Oct 19, 2026 · 3:59 PM EDT

Insider Holdings by Owner

206.87K Shares

Insider Ownership Statistics

as of 30 Sep, 2026

Insider Ownership

0.017%

▲+0.015% pp QoQ

Shares Held by Insiders

206.87K

filed for Sep 2026

▲+976.30% QoQ

Shares Outstanding

1.24Bn

1,242,095,000 shares

Direct Holdings

206.87K

Indirect: 0

Net Shares Traded (QoQ)

+187.65K

net buying in Sep 2026

Insiders Holding Shares

with Form 4 holdings on file

Shares Owned by Insiders

Shares held % of outstanding

Latest —

Average ownership —

Peak ownership —

Shares Purchased/Sold by Insiders

Bought Sold

Latest quarter —

Net over range —

Buying quarters —

Insider Ownership Summary

Updated Oct 11, 2026

Over the past year, MFG insiders did not buy or sell the stock on the open market.

In transactions other than open-market trades, Mizuho Financial insiders acquired 66.18K shares through option exercises and conversions over the past 12 months.
Business Quant data shows Mizuho Financial insiders holding 206.87K shares in total in their latest Form 4 filings.
By type of ownership, MFG insiders hold all of their 206.87K shares directly.
The insider holdings in Mizuho Financial belong to 18 insiders who have reported on Form 4 within the past two years.
Mizuho Financial's top three insider holders by shares held are Masahiro Kihara (Director and officer, 44.23K shares), Hidekatsu Take (Director, 26.17K shares) and Masayuki Sugawara (Officer, 26.14K shares).
Masahiro Kihara holds 21.38% of the combined insider position in Mizuho Financial.
Institutions accounted for 21.84% of MFG's outstanding shares in Q2 2026, insiders about 0.02% per their latest Form 4 filings, and other investors, including the public, about 78.14%.
In the past year, 26 insiders of Mizuho Financial submitted 44 Form 4 filings reporting trades, awards or other transactions.
The insider holdings and trades above for Mizuho Financial reflect Form 4 filings through July 28, 2026.

Form 4 Holdings

Insiders Holding MFG

Insiders 18

Shares held 206.87K

Of outstanding 0.017%

#	Insider	Position	Direct	Total	Share of Insiders	Last Filed
1	Masahiro Kihara	Director, Officer	44,233	44,233	21.4%	06 Jul, 2026
2	Hidekatsu Take	Director	26,173	26,173	12.7%	06 Jul, 2026
3	Masayuki Sugawara	Officer	26,143	26,143	12.6%	06 Jul, 2026
4	Naoshi Inomata	Officer	20,529	20,529	9.9%	06 Jul, 2026
5	Nobuhiro Kaminoyama	Officer	17,354	17,354	8.4%	06 Jul, 2026
6	Shuji Matsuura	Officer	14,598	14,598	7.1%	06 Jul, 2026
7	Takeshi Koyama	Group Chief Strategy Officer	9,612	9,612	4.6%	03 Jun, 2026
8	Shiro Shiraishi	Director, Officer	8,340	8,340	4.0%	06 Jul, 2026
9	Shinichiro Hihara	Officer	6,805	6,805	3.3%	06 Jul, 2026
10	Natsumi Akita	Officer	5,303	5,303	2.6%	06 Jul, 2026
11	Takefumi Yonezawa	Officer	5,244	5,244	2.5%	06 Jul, 2026
12	Minako Yagi	Officer	5,234	5,234	2.5%	06 Jul, 2026
13	Makoto Hitomi	Director	4,537	4,537	2.2%	06 Jul, 2026
14	Tatsuya Kurosawa	Group Chief Governance Officer	4,536	4,536	2.2%	03 Jun, 2026
15	Makoto Samejima	Group Chief Financial Officer	4,211	4,211	2.0%	03 Jun, 2026
16	Hideki Tsujimori	Officer	3,152	3,152	1.5%	06 Jul, 2026
17	Fusae Akamatsu	Group Chief Compliance Officer	466	466	0.2%	03 Jun, 2026
18	Minori Komatsu	Officer	395	395	0.2%	03 Jun, 2026

Each row is that insider’s most recently reported position, from Form 4 filings over the last 60 months — which is why this total does not tie to the quarterly series above, where a quarter counts only the insiders who filed in it. Shares held through a fund or institutional portfolio are counted on the institutional ownership page instead.

Form 4 Filings

115 Insider Transactions

Source SEC Form 4

Latest quarter Sep 2026

Date	Insider	Position	Transaction	Shares	Price	Value	Shares Held After	Ownership
24 Jul, 2026	Masahiro Kihara	Director, Officer	Acquired A	15,391	$0.00	$0	15,391	Direct
24 Jul, 2026	Kotaro Ohno	Director	Acquired A	490	$0.00	$0	3,560	Direct
24 Jul, 2026	Fusae Akamatsu	Director, Officer	Acquired J	400	$0.00	$0	400	Direct
24 Jul, 2026	Minori Komatsu	Officer	Acquired J	434	$0.00	$0	434	Direct
24 Jul, 2026	Takeshi Koyama	Officer	Acquired J	881	$0.00	$0	881	Direct
24 Jul, 2026	Naoshi Inomata	Officer	Acquired A	4,445	$0.00	$0	4,445	Direct
24 Jul, 2026	Hiromichi Shinohara	Director	Acquired A	490	$0.00	$0	3,560	Direct
24 Jul, 2026	Yuki Kanzaki	Director	Acquired A	490	$0.00	$0	1,240	Direct
24 Jul, 2026	Makoto Samejima	Director, Officer	Acquired J	1,028	$0.00	$0	1,028	Direct
24 Jul, 2026	Yumiko Noda	Director	Acquired A	490	$0.00	$0	3,560	Direct
24 Jul, 2026	Shuji Matsuura	Officer	Acquired A	3,680	$0.00	$0	3,680	Direct
24 Jul, 2026	Keiji Kojima	Director	Acquired A	490	$0.00	$0	490	Direct
24 Jul, 2026	Shiro Shiraishi	Director, Officer	Acquired A	3,680	$0.00	$0	3,680	Direct
24 Jul, 2026	Shiro Shiraishi	Director, Officer	Acquired A	540	$0.00	$0	2,690	Direct
24 Jul, 2026	Hidekatsu Take	Director	Acquired A	6,863	$0.00	$0	6,863	Direct
24 Jul, 2026	Minori Komatsu	Officer	Acquired A	480	$0.00	$0	480	Direct
24 Jul, 2026	Masayuki Sugawara	Officer	Acquired A	6,370	$0.00	$0	6,370	Direct
24 Jul, 2026	Shuji Matsuura	Officer	Acquired A	610	$0.00	$0	18,118	Direct
24 Jul, 2026	Makoto Samejima	Director, Officer	Acquired A	480	$0.00	$0	480	Direct
24 Jul, 2026	Masahiro Kihara	Director, Officer	Acquired A	1,680	$0.00	$0	44,774	Direct

Showing 1 to 20 of 115 transactions