Joseph Goldstein,

INVESTORS & MEDIA

INVESTORS
& MEDIA

Joseph L. Goldstein, M.D.

Regental Professor and Chairman, Department of Molecular Genetics The University of Texas Southwestern Center at Dallas

Joseph L. Goldstein, MD, has been a Director of the Company since June 1991. Dr. Goldstein has been Professor of Medicine and Genetics and Chairman of the Department of Molecular Genetics at The University of Texas Southwestern Medical Center at Dallas since 1977. Dr. Goldstein is a member of the National Academy of Sciences. Drs. Goldstein and Brown jointly received the Nobel Prize for Physiology or Medicine in 1985.