Shares of Southwest Airlines (LUV) gained significantly in pre-market trading on Jun 10, following a report  in The Wall Street Journal that Elliott Investment Management has built a stake of nearly $2 billion in it. Per the report, Elliott is one of the largest investors at the Dallas-based low-cost carrier.Elliott, one of the world's most prominent investors, aims to discuss with the carrier’s management and push for changes at Southwest which is currently mired in multiple headwinds. LUV is currently suf ...