Harry Siegfried Gruner is listed as Executive Chairman, President at Jmi Management, L.P. on SEC Form ADV.
Form ADV reports a beneficial ownership band of Under 5%.
| Title | Executive Chairman, President |
| Ownership | Under 5% |
| Control person | Yes |
| Since | 2023 |
| Title | Executive Officer |
| Ownership | — |
| Control person | Yes |
| Since | 2011 |