Big U.S. corporate takeovers drive 'Merger Monday' By: Reuters: Company News April 15, 2013 at 17:55 PM EDT * Barclays No. 3 global M&A adviser, JPMorgan tops league table Read More >> Related Stocks: Adf Group Inc Berkshire Hathaway Dish Network Corp Goldman Sachs Group JPMorgan Chase & Co Thermo Fisher Scientific