| Relationships | Role | Relationship Start | Relationship End |
| Ubs Ag | Parent | 2/1/2004 | 11/1/2005 |
| Ubs O'connor Trading Limited | Parent | 2/1/2004 | 11/1/2005 |
| O'connor Proprietary Series Iii (Swiss Franc) Limited | Parent | 5/1/2004 | 11/1/2005 |
| O'connor Proprietary Series Iii (Euro) Limited | Parent | 2/1/2004 | 11/1/2005 |
| O'connor Proprietary Series Iii Limited | Parent | 2/1/2004 | 11/1/2005 |
| O'connor Multi-Quantitative Strategies Master Limited | Subsidary | 2/1/2004 | 11/1/2005 |