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Merck & Co. (MRK) is a Health Care company in the S&P 500. Latest news and coverage below.
About Merck & Co.
Merck & Co., Inc. is an American multinational pharmaceutical company headquartered in Rahway, New Jersey. The company does business as Merck Sharp & Dohme or MSD outside the United States and Canada. The company is ranked fifth on the list of largest biomedical companies by revenue.
