Berkshire Amasses $2.6 Billion Stake in Delta Airlines

Greg Abel spent his first months as chief executive officer of Berkshire Hathaway Inc. amassing a $2.6 billion stake in Delta Airlines Inc., sending shares up more than 3% in post-market trading in New York.

The head of the Omaha, Nebraska-based conglomerate bought 39.8 million shares in the airline, holding a 6.1% stake through the end of March, according to a regulatory filing Friday.