![Ryo Umehara](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>)
Ryo Umehara
Hoofd Administratief Officier bij
ECOLOGY AND COMBUSTION INC.
Deze pagina is voorbehouden aan leden. Meld je aan of maak een account aan om verder te gaan.
Latest insider transactions
| Date | Company | Type | Amount | Volume |
| 26/05/2026 | Nova Dynamics | Buy | 1 250 000 $ | 32 000 |
| 21/05/2026 | Helios Materials | Sell | 845 000 $ | 19 500 |
| 14/05/2026 | Atlas Renewables | Buy | 2 030 000 $ | 48 200 |
Estimated holdings
| Company | Stake | Value |
| Nova Dynamics | 4.8 % | 18 400 000 $ |
| Helios Materials | 2.1 % | 6 950 000 $ |
| Atlas Renewables | 1.3 % | 3 280 000 $ |
| BluePeak Logistics | 0.9 % | 2 040 000 $ |
Related news feed
An executive increases exposure to an industrial stock
Sector rotation: insiders are more active on clean energy names
New regulatory filing published for executive transactions
Professional network
Executive Management
Board of Directors
Audit Committee
Institutional Investors
Sell-side Analysts
Career timeline
2026 - Chairman of the Board
2022 - Chief Executive Officer
2018 - Chief Financial Officer
2012 - Strategy Committee Member
- Beurs
- Insiders
- Ryo Umehara
- Ervaring
