McKesson Corporation

McKesson Corporation (NYSE: MCK) is a diversified healthcare services leader headquartered in the United States with operations spanning North America and beyond. The company traces its business roots to 1833 and operates through four reportable segments: North American Pharmaceutical, Oncology & Multispecialty, Prescription Technology Solutions, and Medical-Surgical Solutions. McKesson's website is www.mckesson.com.

The North American Pharmaceutical segment distributes branded, generic, specialty, biosimilar, and over-the-counter pharmaceutical drugs to customers in the United States and Canada through a network of 27 distribution centers. This segment serves retail national accounts, community pharmacies, and institutional healthcare providers, offering solutions including Central Fill prescription refill services, the Health Mart franchise network of approximately 3,900 independently-owned pharmacies, and McKesson Connect ordering systems. The Canadian operations include approximately 2,600 independent pharmacies operating under five banners: IDA, Guardian, Remedy'sRx, Proxim, and Uniprix.

The Oncology & Multispecialty segment provides specialty drug distribution, group purchasing organizations, infusion services, and technology solutions to oncology and specialty practices. This segment operates the U.S. Oncology Network, one of the nation's largest networks of community-based oncology practices, and includes controlling interests in PRISM Vision and Sarah Cannon Research Institute, along with Ontada, McKesson's oncology technology and insights business.

The Prescription Technology Solutions segment connects patients, pharmacies, providers, pharmacy benefit managers, health plans, and biopharma companies to address medication access and affordability challenges. The Medical-Surgical Solutions segment distributes medical-surgical supplies, laboratory equipment, and pharmaceuticals to non-acute healthcare settings across more than 336,000 customers, offering over 270,000 national brand products and 4,000 proprietary products.

As of March 31, 2026, McKesson employed more than 43,000 employees worldwide, including approximately 38,000 in the United States and 5,000 in Canada. The company's ten largest customers, including group purchasing organizations, accounted for approximately 73 percent of total consolidated revenues, with CVS Health Corporation representing approximately 24 percent of revenues. McKesson operates in highly regulated healthcare environments and maintains extensive compliance programs addressing controlled substances, FDA regulations, healthcare fraud prevention, and cybersecurity requirements.