CAMBRIDGE, Mass.--(BUSINESS WIRE)--Vertex Pharmaceuticals Incorporated (Nasdaq: VRTX) announced today that holders of its 4.75% Convertible Senior Subordinated Notes due 2013 have agreed to exchange approximately $109.0 million in aggregate principal amount of those notes and accrued interest for approximately 4.8 million shares of the Company’s common stock, which is approximately 140,000 shares more than the number of shares into which the notes were convertible under their original terms.