Merck & Co Inc
merck.comMerck & Co Inc (NYSE: MRK) is a pharmaceutical company that discovers, develops, manufactures, and markets prescription medicines, vaccines, and animal health products. It makes money primarily through direct product sales of patented pharmaceuticals and vaccines, plus alliance revenue from co-commercialization agreements with partners. The company operates two segments: Pharmaceutical and Animal Health. Total sales reached $65.0B in FY2025, up from $64.2B in FY2024 and $60.1B in FY2023. The Pharmaceutical segment generated $58.1B in FY2025 sales, anchored by oncology drug Keytruda/Keytruda Qlex at $31.7B, making it by far the single largest revenue driver. Other material products include Gardasil/Gardasil 9 ($5.2B FY2025), Januvia/Janumet ($2.5B FY2025), Winrevair ($1.4B FY2025), and alliance revenue from Lynparza ($1.5B FY2025) and Lenvima ($1.1B FY2025). The Animal Health segment sells veterinary pharmaceuticals, vaccines, and digital identification and traceability products to veterinarians, distributors, animal producers, farmers, and pet owners.
Products & Services
Pharmaceutical: Keytruda/Keytruda Qlex (oncology), Gardasil/Gardasil 9 (HPV vaccine), Januvia/Janumet (diabetes), Winrevair (pulmonary arterial hypertension), Bridion (anesthesia reversal), ProQuad/M-M-R II/Varivax (vaccines), Prevymis (antiviral), alliance products Lynparza and Lenvima. Animal Health: veterinary pharmaceuticals, vaccines, health management solutions, and digitally connected identification, traceability and monitoring products.
Revenue Model
Transactional product sales of patented prescription drugs, vaccines, and animal health products, supplemented by alliance revenue from co-commercialization agreements (Lynparza, Lenvima). Revenue is recognized at point of sale to wholesalers, distributors, and direct customers.
Customers & Markets
Pharmaceutical end markets: oncology, infectious disease, cardiovascular, diabetes, and vaccine markets. Animal Health customers include veterinarians, distributors, animal producers, farmers, and pet owners across livestock and companion animal species.
Geographic Exposure
The filing excerpts do not provide a specific geographic revenue breakdown. The company files with the SEC as a U.S.-domiciled issuer.
Financial Snapshot
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