Aaref Hilaly has served as a member of Guardant Health’s board of directors since April 2015. Mr. Hilaly joined Sequoia Capital, a venture capital firm, in April 2012 and served as a Managing Member of Sequoia Capital Operations, LLC from January 2015 to June 2018. He currently serves on the board of directors of MobileIron, Inc. and a number of privately-held companies, including Clari, Inc. and ThousandEyes, Inc. Prior to joining Sequoia Capital, Mr. Hilaly served as Vice President, Engineering at Symantec Corp. from June 2011 to April 2012. He was the Chief Executive Officer of Clearwell Systems, Inc., or Clearwell, a provider of analytics software for electronic discovery, from April 2005 until Clearwell’s acquisition by Symantec in June 2011. Prior to that, Mr. Hilaly was the founder and Chief Executive Officer of CenterRun, Inc., a pioneer in datacenter automation, which was acquired by Sun Microsystems, Inc. Mr. Hilaly holds an M.B.A. degree from Harvard Business School, an M.A. degree in Economics from McGill University and a B.A. degree from Oxford University.