C. Michael Armstrong

Overview

C. Michael Armstrong has served as a member of our Board since December 2003. He is currently Chairman of Johns Hopkins Medicine, Health System, and Hospital. Mr. Armstrong served as Chairman of Comcast Corporation from 2002 until May 2004. He was Chairman and Chief Executive Officer of AT&T Corp. from 1997 to 2002, Chairman and Chief Executive Officer of Hughes Electronic Corporation from 1992 to 1997, and retired from IBM in 1991 as Chairman of IBM World Trade after a 31-year career. Mr. Armstrong is on the board of directors of Citigroup Inc., Parsons Corporation, and the Telluride Foundation, and is Vice Chairman of the board of trustees of Johns Hopkins University. Mr. Armstrong previously served as a member of the board of directors and an advisory committee of TBG, and from December 1988 to December 2003 he served on the board of directors of TBG. Mr. Armstrong is a Visiting Professor of the Sloan School at the Massachusetts Institute of Technology.