 |

|
| |
| John A. Edwardson |
Active |
| Chairman and Chief Executive Officer |
1995 |
| CDW LLC |
| |
| Rahm I. Emanuel |
Honorary |
| Mayor |
2001 |
| City of Chicago |
| |
| John R. Ettelson |
Active |
| President and Chief Executive Officer |
2005 |
| William Blair & Company |
| |
| Charles L. Evans |
Active |
| President and Chief Executive Officer |
2007 |
| Federal Reserve Bank of Chicago |
|
| |
|
| Thomas J. Eyerman |
NR |
| Retired Partner |
1986 |
| Skidmore, Owings & Merrill LLP |
| |