CAMBRIDGE, Mass.--(BUSINESS WIRE)--Vertex Pharmaceuticals Incorporated (Nasdaq: VRTX) today announced that the underwriter for its offering of 3.35% convertible senior subordinated notes due 2015 has exercised in full its option to purchase an additional $25 million aggregate principal amount of notes. The exercise of the option brings the total aggregate principal amount of notes sold in the offering to $400 million.
