Activist investor Elliott Investment Management has acquired a nearly $2 billion stake in Southwest Airlines (LUV.N) and plans to push for changes to reverse the airline’s underperformance, according to a report by the Wall Street Journal. As one of Southwest’s largest investors, Elliott aims to engage with the airline’s management team to address challenges, including higher costs and slower-than-expected revenue growth due to delays in aircraft deliveries from Boeing (BA.N). Known for advocating corporate changes to enhance shareholder returns, Elliott’s involvement signals potential strategic shifts for the Dallas-based airline.