Stephen T. Isaacs

STEPHEN T. ISAACS is co-Founder, President and Chief Executive Officer
of Cerus Corporation. Under his direction, Cerus has established a
leadership position in the biopharmaceutical industry. Prior to founding
Cerus in 1991, Mr. Isaacs was the co-Founder, President, and Chief
Executive Officer of HRI Research, Inc. Prior to HRI, he held a faculty
research position in the Department of Chemistry at the University of
California at Berkeley. Mr. Isaacs is a recognized international
authority in the area of psoralen photochemistry, a field in which he
has authored numerous research papers and holds over 40 patents. He is a
member of the Society for Photochemistry and Photobiology and the
American Association of Blood Banks. Mr. Isaacs serves on the Board of
Directors of Pan Pacific Pharmaceuticals, Inc., and is a member of the
Scientific Advisory Board and Board of Regents at St. Mary’s College in
Moraga, California. Mr. Isaacs earned a Bachelor’s degree in
Biochemistry from the University of California at Berkeley.