![Mamoru Umemura](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>)
Mamoru Umemura
No open positions remaining
Net worth: 4 M $ as of 2026-07-30
Known holdings in public companies
| Company | Date | Number of shares | Valuation | Valuation date |
|---|---|---|---|---|
ASAHI NET, INC. 2.96% | 2025-09-29 | 947,000 ( 2.96% ) | 4 M $ | 2026-07-30 |
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