Warren Buffet’s Berkshire Hathaway Loses $3 Billion in Airline Stocks Posted byTheron Mohamed March 12, 2020 Leave a comment on Warren Buffet’s Berkshire Hathaway Loses $3 Billion in Airline Stocks The billionaire investor’s conglomerate counts Delta, Southwest, United, and American among its 25 biggest holdings, and owns more than 8% of all four companies.