Delta Air Lines stock is rallying after a regulatory filing revealed Warren Buffett's Berkshire Hathaway has acquired a new, significant stake in the airline, marking a major vote of confidence.

  • A Schedule 13G filing, made public around May 15, showed Berkshire purchased 39.8 million shares, a stake worth over $2.6 billion as of the end of the first quarter. [2, 3, 5]
  • The move is notable as it marks Berkshire's first major airline investment since famously selling all of its airline holdings during the 2020 pandemic. [1, 4]
  • Positive sentiment has also been supported by a recent price target increase from analysts at Bernstein. [7, 9]