David Hohn

Dr. Hohn has served as one of the company's directors since 2011 and was elected Chairman of the Board in 2013. Dr. Hohn is currently a Professor Emeritus and the Executive Director of Health Policy at Roswell Park Cancer Institute in Buffalo, New York, a position in which he has served since April 2007. Dr. Hohn also serves as a senior advisor to the current President of the Roswell Park Cancer Institute. From March 1997 to April 2007, Dr. Hohn served as President and Chief Executive Officer of the Roswell Park Cancer Institute and Principal Investigator on Roswell Park's National Cancer Institute Cancer Center Support Grant. Prior to coming to Roswell Park, Dr. Hohn served as the Vice President for Clinical Affairs at the M.D. Anderson Cancer Center in Houston, Texas. Dr. Hohn is currently active in New York State cancer control initiatives with the American Cancer Society. He is also a former President and a current member of the Executive Committee of the National Comprehensive Cancer Network, an alliance of 21 leading cancer centers, and he serves as Vice Chair of the New York State Stem Cell Research Board. Dr. Hohn is also a member of the Board of Directors of CUBRC, Inc., an independent, not-for-profit corporation that performs contract and grant research and development for government and industry customers in the areas of Aerosciences, Information Exploitation and Life Sciences. Dr. Hohn has previously served as a member of a number of Western New York civic and professional boards, including the Buffalo Niagara Medical Campus, Hauptmann Woodward Medical Institute, Buffalo Niagara Partnership and the Buffalo Philharmonic Orchestra. Dr. Hohn received his undergraduate degree in Chemistry in 1964 at the University of Illinois at Urbana and his Doctorate of Medicine in 1970 from the University of Illinois College of Medicine at Chicago.