Company / CIK 0001335730
MIZUHO FINANCIAL GROUP INC
- Ticker
- MFG
- Insiders on file
- 10
- Members of Congress who traded it
- 1
- Federal contracts on record
- none matched
- Lobbying filings on record
- none matched
- SEC filings
- EDGAR ↗
- Latest trade on record
- July 24, 2026
MIZUHO FINANCIAL GROUP INC (MFG) has 10 insiders on file who disclosed 17 transactions in the last 12 months (0 open-market buys, 0 sales, about $0 at reported prices), and 1 congressional trade in its stock is on record. No federal contract award that started in the last 180 days was found for a recipient with exactly this name; no lobbying filing names it as client this year.
MIZUHO FINANCIAL GROUP INC in charts
Who is trading this stock
Which people account for the buying and selling over the last 12 months?
1 person accounts for the disclosed buying and selling in MIZUHO FINANCIAL GROUP INC over the last 12 months; the most active is Rep. Alan Armstrong with $50K.
Insiders
| Name | Role | Rows | Bought | Sold | Last filed |
|---|---|---|---|---|---|
| Matsuura Shuji | See Remarks | 2 | 0 | 0 | July 28, 2026 |
| Kihara Masahiro | See Remarks | 2 | 0 | 0 | July 28, 2026 |
| Ohno Kotaro | Director | 1 | 0 | 0 | July 28, 2026 |
| Akita Natsumi | See Remarks | 2 | 0 | 0 | July 28, 2026 |
| Koyama Takeshi | See Remarks | 2 | 0 | 0 | July 28, 2026 |
| Samejima Makoto | See Remarks | 2 | 0 | 0 | July 28, 2026 |
| Yagi Minako | See Remarks | 2 | 0 | 0 | July 28, 2026 |
| Shiraishi Shiro | See Remarks | 2 | 0 | 0 | July 28, 2026 |
| Kojima Keiji | Director | 1 | 0 | 0 | July 28, 2026 |
| Shinohara Hiromichi | Director | 1 | 0 | 0 | July 28, 2026 |
Rows are this company's Form 4 rows for each person. "Bought" and "sold" count open-market purchases (code P) and sales only. More in insider buying and insider selling.
Members of Congress who traded MFG
From periodic transaction reports that name the company's stock. Amounts are the sums of the ranges as filed. Every row is on the MFG page.
| Member | Seat | Trades | Bought | Sold | Range as filed | Latest |
|---|---|---|---|---|---|---|
| Alan Armstrong | Senator (OK), Republican | 1 | 1 | 0 | $15K–$50K | March 30, 2026 |
Insider transactions
| Filer | Security | Side | Trade date | Disclosed | Lag | Shares | Price | Value | Flags | Source | Share |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Shinohara Hiromichi | MFG | Other A | July 24, 2026 | July 28, 2026 | 4d | 490 | — | — | derivative | Form 4 ↗ | |
| Kojima Keiji | MFG | Other A | July 24, 2026 | July 28, 2026 | 4d | 490 | — | — | derivative | Form 4 ↗ | |
| Shiraishi Shiro | MFG | Other A | July 24, 2026 | July 28, 2026 | 4d | 540 | — | — | derivative | Form 4 ↗ | |
| Shiraishi Shiro | MFG | Other A | July 24, 2026 | July 28, 2026 | 4d | 3,680 | — | — | derivative | Form 4 ↗ | |
| Yagi Minako | MFG | Other A | July 24, 2026 | July 28, 2026 | 4d | 570 | — | — | derivative | Form 4 ↗ | |
| Yagi Minako | MFG | Other A | July 24, 2026 | July 28, 2026 | 4d | 3,858 | — | — | derivative | Form 4 ↗ | |
| Samejima Makoto | MFG | Other A | July 24, 2026 | July 28, 2026 | 4d | 480 | — | — | derivative | Form 4 ↗ | |
| Samejima Makoto | MFG | Other J | July 24, 2026 | July 28, 2026 | 4d | 1,028 | — | — | derivative | Form 4 ↗ | |
| Koyama Takeshi | MFG | Other A | July 24, 2026 | July 28, 2026 | 4d | 500 | — | — | derivative | Form 4 ↗ | |
| Koyama Takeshi | MFG | Other J | July 24, 2026 | July 28, 2026 | 4d | 881 | — | — | derivative | Form 4 ↗ | |
| Akita Natsumi | MFG | Other A | July 24, 2026 | July 28, 2026 | 4d | 540 | — | — | derivative | Form 4 ↗ | |
| Akita Natsumi | MFG | Other A | July 24, 2026 | July 28, 2026 | 4d | 3,858 | — | — | derivative | Form 4 ↗ | |
| Ohno Kotaro | MFG | Other A | July 24, 2026 | July 28, 2026 | 4d | 490 | — | — | derivative | Form 4 ↗ | |
| Kihara Masahiro | MFG | Other A | July 24, 2026 | July 28, 2026 | 4d | 1,680 | — | — | derivative | Form 4 ↗ | |
| Kihara Masahiro | MFG | Other A | July 24, 2026 | July 28, 2026 | 4d | 15,391 | — | — | derivative | Form 4 ↗ | |
| Matsuura Shuji | MFG | Other A | July 24, 2026 | July 28, 2026 | 4d | 610 | — | — | derivative | Form 4 ↗ | |
| Matsuura Shuji | MFG | Other A | July 24, 2026 | July 28, 2026 | 4d | 3,680 | — | — | derivative | Form 4 ↗ |
Federal contracts (USAspending, awards started in the last 180 days)
No contract award starting in the last 180 days was found for a recipient named exactly "MIZUHO FINANCIAL GROUP INC". Subsidiaries and differently-spelled recipients are not matched — search contracts.
Lobbying (Senate LDA, as client)
No LDA filing posted since October 2025 names "MIZUHO FINANCIAL GROUP INC" as the client. Filings under a subsidiary or trade-association name are not matched — search lobbying.
Related companies
Companies whose stock was traded by the same people who traded MFG, by number of filers in common. It shows overlap in public filings and nothing else.
- Dell Technologies Inc. DELL 1 filer in common
- CrowdStrike Holdings, Inc. CRWD 1 filer in common
- Seagate Technology Holdings plc STX 1 filer in common
- Uber Technologies, Inc UBER 1 filer in common
- Datadog, Inc. DDOG 1 filer in common
- HERSHEY CO HSY 1 filer in common
- Arista Networks, Inc. ANET 1 filer in common
- AppLovin Corp APP 1 filer in common
Guides for this page
- What is SEC Form 4? Who files: officers, directors and owners of more than 10% of a class of the company's shares.
- Insider buying vs insider selling Selling outweighs buying by a wide margin in normal times.
- What disclosure data cannot tell you Filings are late by design: up to 45 days for Congress, two business days for insiders.
Sources and method
| Source | Filings | Rows | First filed | Newest filed | Read the originals |
|---|---|---|---|---|---|
| Senate eFD, periodic transaction reports | 1 | 1 | July 21, 2026 | July 21, 2026 | Senate eFD search |
| SEC EDGAR, Form 4 | 10 | 17 | July 28, 2026 | July 28, 2026 | Form 4 list on EDGAR |
Site built October 27, 2026. Every row in the tables above links to its own filing. To quote a figure, use the Cite button at the top of the page; see how to cite and reuse.
Insiders and their transactions come from SEC EDGAR Form 4 filings for this issuer. Contracts and lobbying are matched by exact normalized name (suffixes like Inc./Corp. ignored) to USAspending recipients and LDA clients — a conservative match that misses subsidiaries on purpose. See methodology and corrections.
Not investment advice. Public records shown as filed; no recommendation is made or implied.