Twenty-First Century Fox Inc. (stylized as 21st Century Fox and simply known as Fox) is an American multinational mass media corporation based in Midtown Manhattan, New York City. It was one of two companies formed from the 2013 spin-off of the publishing assets of News Corporation, as founded by Rupert Murdoch in 1979. 21st Century Fox is the legal successor to News Corporation dealing primarily in the film and television industries and is currently the world's fourth largest media conglomerate (after Comcast, The Walt Disney Company and Time Warner). The other company, the "new" News Corporation, holds Murdoch's print interests (both owned by him and his family via a family trust).
The company's assets include the Fox Entertainment Group—owners of the 20th Century Fox film studio and Fox television network, and among other assets, pan-Asian pay channel operator STAR TV; and on December 9, 2016, 21st Century announced a bid for full control of United Kingdom-based Sky Plc, whose independent directors supported the deal.
21st Century Fox was formed by the splitting of entertainment and media properties from News Corporation. In February 2012, Natalie Ravitz accepted a position to become Rupert Murdoch’s Chief of Staff at News Corporation. News Corporation's board approved the split on May 24, 2013, while shareholders approved the split on June 11, 2013; the company completed the split on June 28 and formally started trading on the NASDAQ on July 1. Plans for the split were originally announced on June 28, 2012, while additional details, and the working name of the new company were unveiled on December 3, 2012.