when did QSR buy tim hortons
3G Capital (which held a 71% majority stake in Burger King) holds a 51% majority stake in Restaurant Brands International. Tim Hortons' existing shareholders own 22%, and Burger King's own 27%.Berkshire Hathaway, who partially funded the merger, holds a 4.8% stake.he remainder of the company is publicly traded on the New York and Toronto Stock Exchanges, and owned by the prior shareholders of Burger King and Tim Hortons. The deal was approved by Tim Hortons' shareholders on December 9, 2014, and the company began trading on December 15, 2014.