Rob Cawthorn spent nearly four decades in the pharmaceutical, biotechnology and animal health industries. He retired as CEO of Rhone-Poulenc Rorer Inc. in 1995 and as Chairman in 1996. He then spent four years as a member of Global Health Care Partners of DLJ Merchant Banking Partners. Earlier in his career, Mr. Cawthorn was an executive with Pfizer International for 17 years and was the first president of Biogen Inc. He is Chairman of Actelion Ltd. and serves on the boards of Charles River Laboratories Inc., RxBazaar Inc. and certain private companies.