PITTSBURGH — Even as Kraft Heinz Co. moves toward a split, what the new company will look like remains uncertain. In a Jan.

Berkshire Hathaway may sell its Kraft Heinz stake as new CEO Greg Abel moves to clean up a rare Warren Buffett-era misstep.

Kraft Heinz disclosed that more than 325 million Berkshire-held shares may be sold following its planned split.

In a Jan. 21 research report, BofA Global Research suggested the recent hiring of Steve Cahillane as chief executive officer may mean a new home for the Mac & Cheese business within the split company.

Berkshire is seeking to sell its 28% stake in the packaged foods company, according to a filing, the final step in a ...