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Summary: Merck overhauls R&D operations: Report. Apple says 'no' to Icahn proposal for bigger buyback and dividend payouts. Twitter in focus today as shares take a breather on analyst concern about run-up in stock.
Summary: Merck overhauls R&D operations: Report. Apple says 'no' to Icahn proposal for bigger buyback and dividend payouts. Twitter in focus today as shares take a breather on analyst concern about run-up in stock.