premise: Rupert Murdoch lacks control of 21st Century Fox.
hypothesis: Rupert Murdoch . Murdoch thus had full control as Chairman and CEO of global media holding company News Corporation , now the world 's second-largest media conglomerate , and its successors , News Corp and 21st Century Fox , after the conglomerate split on 28 June 2013 . Murdoch 's News Corporation acquired Twentieth Century Fox ( 1985 ) , HarperCollins ( 1989 ) , and The Wall Street Journal ( 2007 ) . On 1 July 2015 , Murdoch left his post as CEO of 21st Century Fox . Murdoch and his family own both 21st Century Fox and News Corp through the Murdoch Family Trust . In July 2016 , after the resignation of Roger Ailes due to accusations of sexual harassment , Murdoch was named the acting CEO of Fox News .