Buffett Airline Stake Gains $76 Million on Qatar Bid

Qatar Airways’ unsolicited approach to buy a 10 percent stake in American Airlines Group Inc. sent the stocks of most U.S. carriers aloft Thursday. Few investors were positioned as well as Warren Buffett’s Berkshire Hathaway Inc. The company has substantial interests in the four major U.S. airlines and saw its portfolio climb $76 million on the news.

— With assistance by Umang Patel

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