Mr. Sayer has served as DexCom's President since June 2011, and as a board member since November 2007. As President and Chief Operating Officer, Mr. Sayer is responsible for the Company's research and development, manufacturing, clinical, regulatory, finance , sales and marketing functions. From April 2007 to December 2010, Mr. Sayer served as Chief Financial Officer of Biosensors International Group, Ltd. ("Biosensors"), a medical technology company developing, manufacturing and commercializing medical devices used in interventional cardiology and critical care procedures. Previously, Mr. Sayer served as Chief Financial Officer of MiniMed, Inc. from 1994 until its acquisition by Medtronic, Inc. in 2001. He also has served as Executive Vice President and Chief Financial Officer of Specialty Laboratories, Inc., and as an independent healthcare and medical technology industry consultant. Mr. Sayer received his Master's Degree in Accounting and Information Systems concurrently with a B.A., both from Brigham Young University.