John T. Spitznagel

JOHN T. SPITZNAGEL joined Roberts in March 1996 as Executive Vice
President, Worldwide Sales and Marketing. He has served on the Company’s
Board of Directors since July 1996 and was elected to the position of
President and Chief Executive Officer on September 11, 1997. Mr.
Spitznagel served as President of Reed and Carnrick Pharmaceuticals from
September 1990 through July 1995. In 1989 and 1990, he served as Chief
Executive Officer of BioCryst Pharmaceuticals, Inc. and from 1979
through 1989, he held various positions with Wyeth-Ayerst Laboratories,
advancing from Marketing Director to Senior Vice President of Marketing
and Sales. Mr. Spitznagel was employed by Roche Laboratories from 1971
through 1979 and by Warner-Chilcott Laboratories from 1966 through 1971
in various sales, marketing and management positions. Mr. Spitznagel
received his undergraduate degree from Rider University and an M.B.A.
from Fairleigh Dickinson University.