Maybe you’ve never heard of the international food conglomerate JAB. But you probably consume some of its products, like Krispy Kreme Doughnuts, Panera Bread and Peet’s Coffee. JAB is a Luxembourg-based holding company run by a secretive German billionaire family. And it’s making quite an impression on the food and beverage business lately. Back in January, the company agreed to pay $26 billion for Dr. Pepper and Snapple. It just added to its lineup by grabbing the British sandwich chain Pret A Manger for $2 billion. 

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