MFG (Mizuho Financial Group, Inc. American Depositary Shares (Each representing one-fifth of an Ordinary Share))
Insider Trading Activity
Every open-market purchase and sale reported by MFG officers, directors and 10%+ beneficial owners on SEC Form 4, which must be filed within two business days of the transaction. Sales often reflect scheduled 10b5-1 plans or tax withholding rather than a directional view, so read counts alongside the size and the filer.
Market data may be delayed, incomplete, or inaccurate. Not a recommendation to buy, sell, or hold any security. Verify quotes with your broker before trading. See Terms §17.
| Filed | Insider | Role | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-07-28 | Hiromichi Shinohara | Director | A | — | — |
| 2026-07-28 | Shuji Matsuura | See Remarks | A | — | — |
| 2026-07-28 | Naoshi Inomata | See Remarks | A | — | — |
| 2026-07-28 | Yumiko Noda | Director | A | — | — |
| 2026-07-28 | Kotaro Ohno | Director | A | — | — |
| 2026-07-28 | Keiji Kojima | Director | A | — | — |
| 2026-07-28 | Shiro Shiraishi | See Remarks | A | — | — |
| 2026-07-28 | Tatsuya Kurosawa | See Remarks | A | — | — |
| 2026-07-28 | Makoto Hitomi | Director | A | — | — |
| 2026-07-28 | Minori Komatsu | See Remarks | MIXED | — | — |
| 2026-07-28 | Hideki Tsujimori | See Remarks | A | — | — |
| 2026-07-28 | Hidekatsu Take | Director | A | — | — |
| 2026-07-28 | Shinichiro Hihara | See Remarks | A | — | — |
| 2026-07-28 | Takakazu Uchida | Director | A | — | — |
| 2026-07-28 | Yuki Kanzaki | Director | A | — | — |
| 2026-07-28 | Minako Yagi | See Remarks | A | — | — |
| 2026-07-28 | Nobuhiro Kaminoyama | See Remarks | A | — | — |
| 2026-07-28 | Masahiko Tezuka | Director | A | — | — |
| 2026-07-28 | Makoto Samejima | See Remarks | MIXED | — | — |
| 2026-07-28 | Masahiro Kihara | See Remarks | A | — | — |
| 2026-07-28 | Natsumi Akita | See Remarks | A | — | — |
| 2026-07-28 | Takashi Tsukioka | Director | A | — | — |
| 2026-07-28 | Takefumi Yonezawa | See Remarks | A | — | — |
| 2026-07-28 | Masayuki Sugawara | See Remarks | A | — | — |
| 2026-07-28 | Takeshi Koyama | See Remarks | MIXED | — | — |
| 2026-07-28 | Fusae Akamatsu | See Remarks | MIXED | — | — |
| 2026-07-06 | Naoshi Inomata | See Remarks | MIXED | — | — |
| 2026-07-06 | Masahiro Kihara | See Remarks | MIXED | — | — |
| 2026-07-06 | Masayuki Sugawara | See Remarks | MIXED | — | — |
| 2026-07-06 | Takefumi Yonezawa | See Remarks | MIXED | — | — |
| 2026-07-06 | Hideki Tsujimori | See Remarks | MIXED | — | — |
| 2026-07-06 | Shuji Matsuura | See Remarks | MIXED | — | — |
| 2026-07-06 | Makoto Hitomi | Director | MIXED | — | — |
| 2026-07-06 | Minako Yagi | See Remarks | MIXED | — | — |
| 2026-07-06 | Shinichiro Hihara | See Remarks | MIXED | — | — |
| 2026-07-06 | Natsumi Akita | See Remarks | MIXED | — | — |
| 2026-07-06 | Shiro Shiraishi | See Remarks | MIXED | — | — |
| 2026-07-06 | Nobuhiro Kaminoyama | See Remarks | MIXED | — | — |
| 2026-07-06 | Hidekatsu Take | Director | MIXED | — | — |
| 2026-06-03 | Takeshi Koyama | Group Chief Strategy Officer | MIXED | — | — |
| 2026-06-03 | Makoto Samejima | Group Chief Financial Officer | MIXED | — | — |
| 2026-06-03 | Fusae Akamatsu | Group Chief Compliance Officer | MIXED | — | — |
| 2026-06-03 | Tatsuya Kurosawa | Group Chief Governance Officer | MIXED | — | — |
| 2026-06-03 | Minori Komatsu | See Remarks | MIXED | — | — |
| Insider | Role | Shares Held | Value |
|---|---|---|---|
| — | See Remarks | 44,233 | — |
| — | Director | 35,910 | — |
| — | See Remarks | 35,506 | — |
| — | See Remarks | 23,034 | — |
| — | See Remarks | 22,389 | — |
| — | See Remarks | 16,196 | — |
| — | See Remarks | 12,522 | — |
| — | See Remarks | 10,032 | — |
| — | See Remarks | 8,866 | — |
| — | See Remarks | 7,826 | — |
| — | See Remarks | 6,461 | — |
| — | See Remarks | 6,064 | — |
| — | Director | 5,156 | — |
| — | See Remarks | 4,783 | — |
| — | See Remarks | 4,224 | — |
| — | See Remarks | 4,211 | — |
| — | Director | 2,613 | — |
| — | Director | 1,640 | — |
| — | Director | 984 | — |
| — | See Remarks | 466 | — |
| — | See Remarks | 395 | — |
Form 4 reports a change in beneficial ownership by an officer, director or 10%+ holder, and must be filed within two business days of the transaction — so this is close to real time, unlike the 45-day-lagged 13F institutional data.
Transaction codes matter more than the raw buy/sell count. Code P is an open-market purchase — an insider choosing to buy with their own money, which is the signal most research treats as informative. Code S is a sale, but sales are frequently pre-scheduled under a 10b5-1 plan or cover tax withholding on vesting equity, so a run of sales often says nothing directional. Codes A and M are grants and option exercises rather than open-market decisions.
Full filing history and per-insider positions are on the MFG quote page; the site-wide leaderboard is on the insider transactions hub.