Quick Read
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Berkshire bought 924,281 SIRI shares across three days, raising its stake to over 125 million shares at roughly $27 million total.
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Sirius raised full-year guidance for the second straight quarter, with free cash flow rising 14% and EBITDA margins expanding to 32%.
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Pandora monthly users fell 7%, net leverage sits at 3.3x adjusted EBITDA, and management warned of a harder Q4 for subscribers.
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Berkshire Hathaway (NYSE:BRK-B) disclosed in a Form 4 filed Nov. 3, 2026, that it bought 924,281 shares of Sirius XM (NASDAQ:SIRI) on Oct. 30, Nov. 2, and Nov. 3. The purchases raised its beneficial ownership to 125,731,398 shares. Investing.com estimated the buying at about $26.9 million, with weighted average prices of $28.8913 on Oct. 30 and $30.233 on Nov. 3.
On last look, Sirius XM traded near $32.38. That was up 5.2% on the session and 18.2% over the past week.
What the Filing Shows and What It Leaves Out
A Form 4 is a required report of trades by insiders, which includes any holder of more than 10% of a company. That makes these completed transactions. The filing does not say whether Berkshire will keep buying, what stake it is aiming for, or why it bought.
Berkshire’s last reported Sirius purchases ran from July 31 through Aug. 4, 2025, at weighted averages of $21.0228 to $21.6252. After that round, it held 124,807,117 shares, the same count it reported going into Oct. 30. Its reported stake stayed flat between the two rounds, and it is now paying much more per share.
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Why Berkshire Bought After a Flat Quarter
Sirius reported third-quarter results before the open on Oct. 29, and Berkshire started buying the next day. The headline numbers were flat: revenue of $2.153 billion (down 0.3% year over year and in line with estimates) and GAAP EPS of $0.78 (just under the $0.7859 consensus).
