![Masaharu Yamamoto](data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" fill="%231b1b1b" class="bi bi-person-fill" viewBox="0 0 16 16"><path d="M3 14s-1 0-1-1 1-4 6-4 6 3 6 4-1 1-1 1zm5-6a3 3 0 1 0 0-6 3 3 0 0 0 0 6"/></svg>)
Masaharu Yamamoto
Director/Board Member at
THE KOSEI SECURITIES CO., LTD.
Net worth: 120 146 $ as of 2026-05-30
Profile
Mr. Masaharu Yamamoto is an Independent Non-Executive Outside Director at The Kosei Securities Co., Ltd. He is on the Board of Directors at The Kosei Securities Co., Ltd. Mr. Yamamoto was previously employed as a President by Yamamoto Kaikei Jimusho.
Known holdings in public companies
| Company | Date | Number of shares | Valuation | Valuation date |
|---|---|---|---|---|
| 2025-03-30 | 36,500 ( 0.38% ) | 120 146 $ | 2026-05-30 |
Masaharu Yamamoto active positions
| Companies | Position | Start |
|---|---|---|
| THE KOSEI SECURITIES CO., LTD. | Director/Board Member | 2008-05-31 |
Former positions of Masaharu Yamamoto
| Companies | Position | End |
|---|---|---|
Yamamoto Kaikei Jimusho | President | - |
Experiences
Positions held
Active
Inactive
Listed companies
Private companies
Connections
3
1st degree connections
2
1st degree companies
Male
Female
Members of the board
Executives
Linked companies
| Private companies | 2 |
|---|---|
The Kosei Securities Co., Ltd.
 The Kosei Securities Co., Ltd. Investment Banks/BrokersFinance Provides investment services | Finance |
Yamamoto Kaikei Jimusho |
- Stock Market
- Insiders
- Masaharu Yamamoto
