WALTHAM, Mass.--(BUSINESS WIRE)--Thermo Fisher Scientific Inc. (NYSE: TMO), the world leader in serving science, announced today that it has commenced a tender offer to purchase for cash any and all of its outstanding 2.50% Convertible Senior Notes due 2023. The company also announced today that it has called for redemption all of its outstanding 6¾% Senior Subordinated Notes due 2014.
