| Relationships | Role | Relationship Start | Relationship End |
| Comerica Ventures, Incorporated | Parent | 12/20/1991 | 8/31/2001 |
| Comerica Ventures, Incorporated | Parent | 5/1/1989 | 12/19/1991 |
| Relationships | Role | Relationship Start | Relationship End |
| Comerica Ventures, Incorporated | Parent | 12/20/1991 | 8/31/2001 |
| Comerica Ventures, Incorporated | Parent | 5/1/1989 | 12/19/1991 |