Merck & Co. Inc.

Company Overview

Merck & Co. Inc. is an American pharmaceutical company headquartered in New Jersey that develops, manufactures, and sells prescription medicines, vaccines, biologic therapies, and animal health products around the world. Its business is organized into major segments, including human pharmaceuticals, vaccines, and animal health. Its human health products are sold through drug wholesalers, hospitals, clinics, government agencies, and managed care providers.

Merck’s cardiovascular portfolio focuses on treatments for high cholesterol, heart disease, and related conditions. WINREVAIR is a new treatment approved by the U.S. Food and Drug Administration for pulmonary arterial hypertension (PAH), a rare type of high blood pressure in the lung arteries that strains the heart. It is the first activin signaling inhibitor approved for this condition. It is used to increase exercise capacity, improve functional class, and reduce the risk of clinical worsening events in adult PAH patients.

Financial Highlights (FY 2025)

Company's Business Segments

• Pharmaceutical : Human health pharmaceutical and vaccine products.
• Animal Health : Veterinary pharmaceutical and vaccine products, health management solutions and services.
• Other : These are primarily comprised of miscellaneous corporate revenues, including revenue hedging activities, as well as revenue from third-party manufacturing arrangements.