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
Carsten Kengeter was reassigned to oversee the winding down of non-core businesses. He resigned from UBS in February 2013. He became a visiting professor in the Department of Finance at his alma mater, the London School of Economics. In October 2017, it was announced Kengeter would be stepping down as CEO of Deutsche Börse. He has been CEO since June 2015 and member of the Executive Board since April 2015. He is a board member of several international organisations such as the China Europe International Exchange AG and b-to-v Partners AG. Additionally he is Chairman of the Supervisory Board of Circuitous Capital