Michael Bell has served as a director since March 2016. Michael served as chief technology officer of Michigan based electric vehicle startup Rivian from June 2019 until February 2020. Prior to this, he was the chief executive officer and president of Silver Spring Networks, a leading networking platform and solutions provider for smart energy networks, since September 2015 until his retirement in January 2018. Previously, from 2010 to 2015 he held various roles at Intel Corporation, a multinational technology corporation specializing in the production of semiconductor chips, including Corporate Vice President New Devices Group, Corporate VP Mobile and Communications Group and Corporate Vice President Ultra Mobility Group. He was head of Product Development at Palm, Inc. from 2007 to 2010. He worked at Apple, Inc. from 1991 to 2007 and played significant roles in development of Apple iPhone and Apple TV products, serving as Vice President, CPU Software from 2002 to 2007. He holds a B.S. in Mechanical Engineering from the University of Pennsylvania.