Billionaire activist investor Carl Icahn said on Thursday he had no interest in making a bid for Southwest Gas Holdings Inc, days after the utility said it would evaluate a sale following interest from an unnamed potential buyer. In an open letter to Southwest’s shareholders, Icahn said his “only interest is to replace the incumbent…

Warren Buffett’s Berkshire Hathaway Inc. revealed a more than $5 billion stake in Occidental Petroleum Corp., as oil prices soared to their highest level in about a decade. Berkshire said it owns 91.2 million Occidental shares, or nearly 10 percent of those outstanding, including 61.4 million bought from March 2 to March 4. Buffett’s company…

Billionaire activist investor Carl Icahn has amped up his campaign against McDonald’s pig sourcing from suppliers who continue to keep pregnant sows in gestation crates, something that Icahn says is obscene. Icahn has nominated Maisie Ganzler, chief strategy and brand officer at Bon Appetit Management Company, and Leslie Samuelrich, president of Green Century Capital Management,…