Warren Buffett’s Berkshire Hathaway has spent another $54 million to purchase Sirius XM stock, giving it a stake of more than 35% in the satellite-radio company.

Key Takeaways Berkshire Hathaway has bought more shares of satellite radio broadcaster SiriusXM, a new SEC filing shows.Shares of the owner of its namesake satellite provider and the Pandora streaming service rose Tuesday.

Warren Buffett's Berkshire Hathaway once again scooped up shares of Sirius XM. The Omaha, Nebraska-based conglomerate purchased roughly 2.3 million shares for about $54 million in separate transactions Thursday through Monday,