Among the stock activity stories for Monday, June 17, from AP Business News:
— Shares of Medivation Inc. fell after health care giant Johnson & Johnson agreed to buy Aragon Pharmaceuticals, a company that is developing a prostate cancer drug that could compete with Medivation's Xtandi.
— Weyerhaeuser Co.'s stock rose as the lumber company named Doyle Simons as its new CEO and announced a deal to buy Longview Timber LLC. for $2.65 billion. It also said that it was exploring strategic options for its real estate company that could include a merger, a sale or spin-off of the business and announced a quarterly dividend increase.