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
Dennis Muilenburg the High Speed Civil Transport; and the Condor unmanned reconnaissance aircraft. He later served as vice president of the Boeing Combat Systems division. Muilenburg served as president and chief executive officer of Boeing Integrated Defense Systems (later renamed Boeing Defense, Space & Security (BDS) from Sept 2009 till 2015. In June 2015, Boeing announced that Muilenburg would succeed James McNerney, who was stepping down after ten years as CEO. In February 2016, it was announced that Muilenburg would also succeed McNerney as Boeing's chairman. In March 2016, Muilenburg became the chairman of the board of directors of The Boeing Company.