Warren Buffett’s investment firm, Berkshire Hathaway, has increased its stake in Sirius XM Holdings to 32%. The company purchased roughly 3.6 million shares for about $87 million in separate transactions.

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.

Warren Buffett's Berkshire Hathaway now has a stake of about 32.5% in Sirius XM’s publicly traded stock, having become the top holder last month.

Sirius XM, backed by Berkshire Hathaway, maintains strong market share and high ARPU despite competition from Spotify and Apple Music. Find out why SIRI stock is a Buy.

Berkshire Hathaway (BRK-B, BRK-A) has upped its stake in radio broadcaster SiriusXM Holdings (SIRI) to 32% after purchasing 3.6 million shares — or $87 million worth — last week, according to SEC filings.