Larry Page using Android software and, by 2010, 17.2% of the handset market consisted of Android sales, overtaking Apple for the first time. Android became the world's most popular mobile operating system shortly afterward. Following a January 2011 announcement, Page officially became the chief executive of Google on April 4, 2011, while Schmidt stepped down to become executive chairman. By this time, Google had over $180 billion market capitalization and more than 24,000 employees. After Schmidt announced the end of his tenure as CEO on January 20, 2011, he jokingly tweeted on Twitter: "Adult-supervision no longer needed." Quartz organizational management reporter, Max
John S. Watson (Chevron CEO) 2010, he was Vice-Chairman of the Board. Since 2010, he has served as Chairman and CEO. He also serves as Chairman of the Board of the American Petroleum Institute, and on the Board of Directors of Caltex, Dynegy (2001–2004), the National Petroleum Council, the Business Council, the Business Roundtable, JPMorgan International Council, the American Society of Corporate Executives, and the Animal Rescue Foundation. John S. Watson (Chevron CEO) John S. Watson (born 1956) is an American businessman. He served as the Chief Executive Officer and Chairman of the Board of the Chevron Corporation from January 1, 2010 to January 31,