Mr. David S. Simmons has been the Chairman and Chief Executive Officer of Pharmaceutical Product Development, Inc. since June 4, 2012. Mr. Simmons served as the President and General Manager Emerging Markets & Established Products units at Pfizer Inc. from December 2010 to June 1, 2012. He served as the President and General Manager of Established Products at Pfizer from 2008 to December 2010. Mr. Simmons joined PPD following 15 years with Pfizer in several senior roles. Since joining Pfizer in 1996, Mr. Simmons has held various positions of increasing responsibility in pharmaceutical operations including, Regional President, Central Southern Europe; Vice President of Marketing, Pfizer Canada; and Country Manager, Pfizer Greece. Prior to this role, he held various positions of increasing responsibility in information technology and pharmaceutical operations, including roles in several countries around the world. He Simmons has been the Chairman of Pharmaceutical Product Development, Inc. since June 4, 2012. He served as the Chairman at Association of Clinical Research Organizations until January 30, 2017 and serves as its Director. He serves as a Member of the U.S.-India Business Council. He has been a Director at Owens & Minor Inc. since October 30, 2013. Mr. Simmons earned his degree in Applied Mathematics and Industrial Management from Carnegie-Mellon University.

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