Mark Daniel Simmer is listed as Managing Partner, Chief Investment Officer, Managing Member at Clear Haven Capital Management, LLC on SEC Form ADV.
Form ADV reports a beneficial ownership band of Under 5%.
| Title | Managing Partner, Chief Investment Officer, Managing Member |
| Ownership | Under 5% |
| Control person | Yes |
| Since | 2019 |
| Title | Limited Partner |
| Ownership | 50-75% |
| Control person | Yes |
| Since | 2025 |
| Title | Managing Member |
| Ownership | 50-75% |
| Control person | Yes |
| Since | 2025 |