How you can get a better deal than Warren Buffett on Sirius XM shares By: MarketWatch February 15, 2017 at 09:55 AM EST You can buy a cheaper tracking stock set up by Liberty Media’s John Malone, writes Michael Brush. Read More >> Related Stocks: Liberty Media Siriusxm Sr B Liberty Siriusxm Series A Liberty Siriusxm Series C Pandora Media Inc Siriusxm Holdings Inc