Warren Buffett's Berkshire Hathaway continued to increase its stake in SiriusXM, now owning 32% of the New York-based satellite radio company.The Omaha, Nebraska-based conglomerate purchased roughly 3.

This followed Liberty Media's tracking stocks with SiriusXM in early September and a restructuring of Malone's media assets while also spinning out the Atlanta Braves a company in which Berkshire owns stakes.