Marc Joseph Dion is listed as Principal at Morgan Dempsey Capital Management LLC on SEC Form ADV.
Form ADV reports a beneficial ownership band of Under 5%.
| Title | Principal |
| Ownership | Under 5% |
| Control person | Yes |
| Since | 2006 |
| Title | Principal |
| Ownership | 25-50% |
| Control person | Yes |
| Since | 2023 |