Buffett's Berkshire Hathaway buys GM, trims Intel

SAN FRANCISCO (MarketWatch)
Warren Buffett's Berkshire Hathaway Inc. late Tuesday disclosed it had bought 10 million shares of General Motors Co. in the first quarter
Berkshire Hathaway also bought 1.6 million Class B shares in Viacom Inc. , according to a regulatory filing
However, Berkshire scaled back its exposure in Intel Corp. to 7.7 millon shares from 11.5 million in the previous period and kept its stake in IBM mostly unchanged at around 64.4 million shares