Warren Buffett's Berkshire Hathaway increased the value of this equity holdings to $127.41 billion during the third quarter from $107.18 billion in the second quarter, as it took a new stake in AT&T Inc. and boosted its holding in General Motors Co. , regulatory filings show. As of Sept. 30, Berkshire owned 59.3 million shares of AT&T, after owning none of the telecommunications giant's stock as of June 30. Berkshire's stake in GM increased by 22% to 50 million shares from 41 million shares. AT&T's stock slid 8.3% during the third quarter and GM shares shed 9.9%, while the S&P 500 slid 6.9% during the quarter. Among other moves, Berkshire trimmed its holding in Wal-Mart Stores Inc. to 56.2 million shares from 58.3 million shares. The discount retailer's stock fell 8.6% during the third quarter.
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