Joseph M. Limber

JOSEPH M. LIMBER joined ACLARA Biosciences, Inc. in April 1998 as
President, Chief Executive Officer and a Director. Prior to joining the
company, Mr. Limber was President and Chief Operating Officer at PRAECIS
Pharmaceuticals, Inc. from 1996 to 1998. Previous to that time, he held
positions as Executive Vice President of Sequus Pharmaceuticals, Inc.
from 1995 to 1996, and Vice President of Marketing and Sales from 1992
to 1995. Mr. Limber also held management positions in marketing and
sales with Syntex Corporation from 1987 to 1992, and with Ciba-Geigy
Corporation from 1975 to 1987. Mr. Limber holds a BA from Duquesne
University.