Dr. Sommer has been an independent director of Price Group since 2003 and serves as Lead Director and as a member of the Nominating and Corporate Governance Committee and the Executive Compensation Committee.

Dr. Sommer had designed and led major research programs around the world, and in 1980 returned to the Johns Hopkins University where he founded the Dana Center for Preventive Ophthalmology. From 1990 to 2005, Dr. Sommer served as the Dean of the Johns Hopkins Bloomberg School of Public Health. He remains University Distinguished Service Professor of International Health and Epidemiology, and Dean Emeritus of the School of Public Health, and Professor of Ophthalmology in the School of Medicine. He served for a decade on the Executive Committee of the Board of the Academy for Educational Development (AED), as President of the Association of Schools of Public Health, as Chair of the Audit Committee, and, from 2007 through 2014, Chair of the Board of the Lasker Foundation. He served as a member of the Board of Becton Dickenson since from1998 to January 2015, where he served on the Executive, Audit, and the Nominating and Governance Committees and Chaired the Science and Innovation and Nominating and Governance Committees.

Dr. Sommer is a graduate of Union College, received his Medical degree from Harvard Medical School, and his degree in Epidemiology from Johns Hopkins University. He is a member of both the National Academy of Science and The Institute of Medicine.