billionaire investor carl icahn acquired more than 125 million shares of twitter inc during the third quarter ahead of elon musk’s takeover of the company while also boosting his holdings in occidental petroleum corp and southwest gas holdings according to a filing monday icahn’s stake in the social media platform which is now private after musk bought it last month was worth nearly 550 million according to the filing his position in twitter was reported by the wall street journal in october the journal said icahn built up that stake over the past few months elsewhere with energy prices still elevated icahn scooped up 843638 more shares of oil producer occidental petroleum oxy  representing a 552 increase and bringing his total holdings to 16116069 shares he also acquired 1508509 shares of natural gas distributor southwest gas swx  representing a 2956 increase for total holdings of 6611630 shares shares of southwest gas were up 52 after hours occidental dipped 03 icahn also shook up his holdings in the food and beverage industry he sold off his entire stake 11150368 shares in welbilt inc which makes equipment for restaurants and other segments of the food industry ali holding bought welbilt in july icahn also acquired 1040000 shares of crown holdings inc cck  which makes aluminum and steel cans and other packaging