WALTHAM, Mass.--(BUSINESS WIRE)--Thermo Fisher Scientific Inc. (NYSE: TMO), the world leader in serving science, today announced that its Board of Directors has authorized the repurchase of $5 billion of shares of its common stock in the open market or in negotiated transactions. The authorization has no expiration date. About Thermo Fisher Scientific Thermo Fisher Scientific Inc. is the world leader in serving science, with annual revenue of approximately$40 billion. Our Mission is to enable. ...