Sanofi to Buy Principia Biopharma in $3.4 Billion Deal

Aug.17 -- Sanofi has agreed to acquire Principia Biopharma Inc. in a $3.4 billion deal. The move comes as the French drug maker pivots toward innovative therapies to spur growth. The all-cash deal will see Sanofi taking full control of the U.S. autoimmune drug maker. Bloomberg’s James Paton reports on “Bloomberg Markets: European Open.”