Warren Buffett’s Successor Weighs Sale of Kraft Heinz Stake, Dealing a Blow to Ketchup Maker’s Stock

Warren Buffett was “disappointed” Kraft Heinz (KHC) planned to split into two. His successor as Berkshire Hathaway CEO may exit the stock entirely.

Kraft Heinz shares were down 6% in afternoon trading Wednesday, a day after the food giant revealed in a regulatory filing that Berkshire Hathaway (BRK.A, BRK.B) may sell “up to an aggregate of 325,442,152 shares of the Company’s common stock.” Berkshire did not respond to a request for comment in time for publication.

Berkshire had lowered the book value of its Kraft Heinz stake by about $3.8 billion after taxes in the second quarter, and owned 27.5% of the company’s outstanding common stock as of Sept. 30, 2025. Buffett, who stepped down as CEO of the conglomerate at the end of the year, told CNBC in early September that he was “disappointed” in Kraft Heinz’s planned split, and that Greg Abel, who took over as Berkshire Hathaway’s chief executive, expressed that to Kraft Heinz.

Shares of Kraft Heinz, which have lost nearly 70% from their 2017 highs, have floundered for most of the decade since the Buffett-backed merger of Kraft and Heinz, as the conglomerate struggled with shifting consumer tastes and growing competition.

Now, Kraft Heinz’s plans to break up its business may be taken as an acknowledgement that the company—and Buffett—misstepped in that merger.

The company has said its impending breakup, which is expected to be completed in the second half of 2026, could help the company streamline its operations, but the decision has done little to excite investors since it was announced in September.

Of the six Wall Street analysts with current ratings tracked by Visible Alpha, five have preferred to remain on the sidelines with neutral ratings, with one recommending selling the shares.