Buffett's Berkshire Takes $3.8 Billion Hit on Kraft Heinz Stake Bloomberg.comWarren Buffett's Berkshire Hathaway reports 4% drop in operating earnings in Q2 CNNBerkshire Hathaway operating earnings dip 4% as conglomerate braces for tariff impact CNBCBerkshire Operating Profits Fall 4% in 2nd Quarter. Company Takes Write-Down of Kraft Equity Stake. Barron's