Merck & Company Inc (MRK)

Merck & Company Inc (MRK) is a Drug Manufacturers - General company in the Healthcare sector listed on the NYSE.

As of Oct 23, 2026: market cap $363B; returns 1 day -1.3%, 1 week -0.5%, 1 year +66.6%.

Merck & Company Inc. (MRK) is a global biopharmaceutical company that discovers, develops, manufactures, and markets prescription medicines, vaccines, biologic therapies, and animal health products. The company's pharmaceutical segment, which accounts for nearly 90% of total sales, is the primary revenue source, driven overwhelmingly by its flagship oncology drug, KEYTRUDA.

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MRK financial model: income statement, cash flow and balance sheet