| Thomas Hawes | MEMBER | Chicago, IL |
| Matthew John Downs | MANAGER | Maryland Heights, MO |
| Nicholas Rosa | MANAGER | Chicago, IL |
| Annahita Haghgooie | MEMBER | — |
| BROWN JOHN F | MEMBER, MANAGER | — |
| SHAPIRO HARRY BERNARD | MANAGER; MEMBER, MANAGER; MEMBER, MANAGER SANDBOX INDUSTRIES MANAGER, LLC | — |
| ROSA NICHOLAS | MANAGER; MEMBER, MANAGER; MEMBER, MANAGER SANDBOX INDUSTRIES MANAGER, LLC | — |
| DOWNS MATTHEW JOHN | MANAGER; MEMBER, MANAGER; MEMBER, MANAGER SANDBOX INDUSTRIES MANAGER, LLC | — |
| ENGELBERG STEVEN | MANAGER; MEMBER, MANAGER; MEMBER, MANAGER SANDBOX INDUSTRIES MANAGER, LLC | — |
| HAGHGOOIE ANNAHITA | MEMBER; MEMBER, SANDBOX INVESTMENT MANAGEMENT, LLC | — |
| HAWES THOMAS | MEMBER; MEMBER, SANDBOX INVESTMENT MANAGEMENT, LLC | — |