Reese Witherspoon’s media business, Hello Sunshine, is selling itself to a firm backed by private-equity giant Blackstone Group Inc., the companies said, part of a plan to build an independent entertainment company for Hollywood’s streaming era.
The companies didn’t disclose the terms of the deal. People familiar with the matter said it values Ms. Witherspoon’s company, whose production slate has included programming such as the HBO drama “Big Little Lies,” at about $900 million.