Shares of Roku hit a 52-week high Friday on a report that the streaming platform company is in talks to sell itself.

Roku’s stock closed at $143.66/share Friday, up 20% for the day, pushing its market cap up to about $21.3 billion. That came after Bloomberg reported that Roku has been “in discussions with at least one U.S. media company about a potential combination,” citing anonymous sources. The report did not identify the media company.

A Roku rep did not immediately respond to a request for comment.