McKesson Corp. MCK

What this company does

McKesson works with biopharma companies, care providers, pharmacies, manufacturers and governments to deliver insights, products and services. Sales to its largest customer, CVS Health Corporation, accounted for approximately 24% of total consolidated revenues in fiscal 2026. The company reports in four segments: North American Pharmaceutical, Oncology & Multispecialty, Prescription Technology Solutions, and Medical-Surgical Solutions. The North American Pharmaceutical segment distributes branded, generic, specialty, biosimilar and over-the-counter pharmaceutical drugs and other healthcare-related products to customers in the United States and Canada. The Oncology & Multispecialty segment covers specialty drug distribution, group purchasing organizations, infusion services, direct to patient pharmacy capabilities, cell and gene therapy services, technology solutions, practice consulting services and vaccine distribution. The Prescription Technology Solutions segment connects patients, pharmacies, providers, pharmacy benefit managers, health plans and biopharma companies, delivering medication access solutions that follow a patient from a first prescription fill to ongoing therapy. The Medical-Surgical Solutions segment supplies medical-surgical products, laboratory equipment and pharmaceutical distribution and logistics to more than 336,000 customers in non-acute and alternate-site settings in the United States, among them physician offices, surgery centers, post-acute care facilities, hospital reference labs and home health agencies. The Company was incorporated in the State of Delaware on July 7, 1994.

Written from the business description in MCKESSON CORP's annual report to the U.S. Securities and Exchange Commission, filed 8 May 2026. Every sentence was checked against that document before publication.