Quentin Blackford has served as a Director of Alphatec Holdings and Alphatec Spine since October 2017. Mr. Blackford currently serves as the Chief Financial Officer of DexCom, Inc., a company focused on developing and marketing continuous glucose monitoring systems for ambulatory use by people with diabetes and by healthcare providers. Prior to joining DexCom in August 2017, Mr. Blackford served since August 2016 as the Executive Vice President, Chief Financial Officer, Head of Strategy and Corporate Integrity of NuVasive, Inc., a medical device company focused on developing minimally disruptive surgical products and procedures for the spine. In this role, Mr. Blackford was responsible for leading NuVasive’s Finance, Strategy and Corporate Development, Compliance and Regulatory functions. From August 2014 until August 2016, Mr. Blackford served as NuVasive’s Executive Vice President, Chief Financial Officer. From July 2012 to August 2014, Mr. Blackford served as NuVasive’s Executive Vice President of Finance and Investor Relations, and from January 2011 to June 2012, he served as NuVasive’s Vice President, Finance. Mr. Blackford joined NuVasive in 2009 as its Corporate Controller and was previously employed at Zimmer Holdings, Inc., including most recently as the Director of Finance and Controller for Zimmer’s Dental Division. He obtained his Certified Public Accounting license (currently inactive) following the achievement of dual Bachelor of Science degrees in Accounting and Business Administration, with an emphasis in Accounting, from Grace College.