Joseph Michael Lamastra is listed as Ceo at Riverwest Investment Management, LLC on SEC Form ADV.
Form ADV reports a beneficial ownership band of Under 5%.
| Title | Ceo |
| Ownership | Under 5% |
| Control person | Yes |
| Since | 2025 |
| Title | Owner |
| Ownership | Over 75% |
| Control person | Yes |
| Since | 2017 |