Elon Musk has served as our Chief Executive Officer since October 2008 and as Chairman of our Board of Directors since April 2004. Mr. Musk has also served as Chief Executive Officer, Chief Technology Officer and Chairman of Space Exploration Technologies Corporation, a company which is developing and launching advanced rockets for satellite and eventually human transportation (SpaceX), since May 2002, and served as Chairman of the Board of SolarCity Corporation, a solar installation company (SolarCity), from July 2006 until its acquisition by us in November 2016. Since December 2015, Mr. Musk has also been a co-chair of OpenAI, a non-profit artificial intelligence research company. Prior to Space Exploration Technologies Corporation, Mr. Musk co-founded PayPal, an electronic payment system, which was acquired by eBay in October 2002, and Zip2 Corporation, a provider of Internet enterprise software and services, which was acquired by Compaq in March 1999. Mr. Musk holds a B.A. in physics from the University of Pennsylvania and a B.S. in business from the Wharton School of the University of Pennsylvania.