Mark L. Levin

MARK L. LEVIN has served as Chairman of the Board of Directors of
Millennium Pharmaceuticals, Inc. since March 1996, Chief Executive
Officer of the Company since November 1994 and as a director of the
Company since inception. From 1987 to 1994, Mr. Levin was a partner at
Mayfield Fund, a venture capital firm, and co-director of its Life
Science Group. While employed with Mayfield, Mr. Levin was the founding
Chief Executive Officer of several biotechnology and biomedical
companies, including Cell Genesys Inc., CytoTherapeutics Inc., Tularik
Inc and Focal, Inc. Mr. Levin holds an M.S. in Chemical and Biomedical
Engineering from Washington University. Mr. Levin also serves on the
Board of Directors of CytoTherapeutics, Tularik and Focal.