Warren Buffett’s Berkshire Hathaway once again scooped up shares of Sirius XM , hiking its stake in satellite radio company to about 37% of shares outstanding, after a sell-off on disappointing earnings. The Omaha-based conglomerate bought 5 million shares of Sirius XM via separate transactions on Thursday, Friday and Monday, according to a regulatory filing released Monday evening. Berkshire now owns 124.8 million shares, worth about $2.6 billion. Berkshire first invested in Sirius XM after billionaire John Malone’s Liberty Media completed its deal in 2024 to combine its tracking stocks with the rest of the audio entertainment company. It was part of Malone’s reshuffling of his sprawling media empire that also included a split-off of the Atlanta Braves baseball team into a separate, publicly traded company — which Berkshire also owns shares in. SIRI YTD mountain Sirius XM year to date The 94-year-old Buffett has never mentioned the investment publicly, and it’s unclear if he’s behind it or if it’s the work of the billionaire’s investing lieutenants — either Ted Weschler or Todd Combs. The latest purchase came after Siri’s second-quarter earnings report on Thursday. The stock dropped nearly 8% that day after the company’s quarterly profit declined more than expected. Siri also warned about continuous weakness in the advertising market amid the economic uncertainty. “2025 continues to be a transition year, though we believe management continues to execute well, and we don’t see a meaningful shift in fundamentals,” Evercore ISI analysts said in a note to clients Friday. Shares of Siri are down 4% this year after a 58% loss in 2024.
