 |

|
| James J. O'Connor |
Life |
| Retired Chairman and Chief Executive Officer |
1973 |
| Unicom Corporation and Commonwealth Edison Company |
| |
| James J. O'Connor Jr. |
Active |
| Managing Director |
2011 |
| MVC Capital |
| |
| Michael D. O'Halleran |
Active |
| Senior Executive Vice President |
2001 |
| Aon Corporation |
| |
| William A. Osborn |
Active |
| Retired Chairman & Chief Executive Officer |
1994 |
| Northern Trust Corporation |
| |
| Robert S. Osborne |
Active |
| Executive Vice President and General Counsel |
2005 |
| Booz Allen Hamilton |
| |
| James Otis, Jr. |
Life |
| Chairman and Chief Executive Officer |
1978 |
| Otis Company |
| |
| |