Minneapolis-based Caribou Coffee announced a definitive merger agreement under which an affiliate of Joh. A. Benckiser Group (JAB), Ludwigshafen, Germany, will acquire Caribou Coffee for $16 per share in cash, or a total of approximately $340 million. The agreement, which was unanimously approved by Caribou Coffee’s independent directors, represents a premium of approximately 30 percent over Caribou Coffee’s closing stock price Dec. 14, the last trading day prior to the announcement of the transaction.