Kevin Sharer has been Amgen's chief executive officer and president since May 2000, and he has also been chairman of the company's Board of Directors since January 2001. From October 1992 to May 2000, Sharer was Amgen's president and chief operating officer. He has been a director of Amgen since November 1992. Before joining Amgen, Sharer was president of the Business Markets Division of MCI Communications. Prior to MCI, Sharer served in a variety of executive capacities at General Electric and was a consultant for McKinsey & Company. Sharer serves on the Board of Directors of Northrop Grumman Corporation and Chevron. He is a trustee of the California Institute of Technology (Caltech).