Warren Buffett has taken an unexpected stake in four major U.S. airlines
Warren Buffett has taken an unexpected stake in four major U.S. airlines. According to regulatory filings, his holding company Berkshire Hathaway (BRK.A, BRK.B) invested $1.2 billion in American Airlines (NASDAQ:AAL), Delta (NYSE:DAL), United Continental (NYSE:UAL) […]