MCKESSON CORP

We are a diversified healthcare services leader dedicated to advancing health outcomes for patients everywhere. Our teams partner with biopharma companies, care providers, pharmacies, manufacturers, governments, and others to deliver insights, products, and services to help make quality care more accessible and affordable.

We implemented a new segment reporting structure commencing in the second quarter of fiscal 2026, which resulted in four reportable segments: North American Pharmaceutical, Oncology & Multispecialty, Prescription Technology Solutions, and Medical-Surgical Solutions. Our former Norwegian operations were included in Other. All prior segment information has been recast to reflect our new segment structure and current period presentation. Our organizational structure also includes Corporate, which consists of income and expenses associated with administrative functions and projects, as well as the results of certain investments. The factors for determining the reportable segments include the manner in which management evaluates the performance of the Company combined with the nature of individual business activities. We evaluate the performance of our reportable segments on a number of measures, including revenues and operating profit before interest expense and income taxes.

The following summarizes our four reportable segments. Refer to Financial Note 13, “Segments of Business,” to the accompanying condensed consolidated financial statements included in this Quarterly Report for further information regarding our reportable segments.

•North American Pharmaceutical segment provides distribution and logistics services for branded, generic, specialty, biosimilar, and over-the-counter pharmaceutical drugs along with other healthcare-related products to customers in the United States (“U.S.”) and Canada. In addition, the segment sells financial, operational, and clinical solutions to pharmacies (retail, hospital, alternate sites) and provides consulting, outsourcing, technological, and other services.

•Oncology & Multispecialty segment includes provider solutions that encompass specialty drug distribution, group purchasing organizations, infusion services, direct to patient pharmacy capabilities, cell and gene therapy services with InspiroGene, technology solutions, practice consulting services, and vaccine distribution. In addition, the segment supports The U.S. Oncology Network, one of the largest networks of physician-led, integrated, community-based oncology practices dedicated to advancing high-quality, evidence-based cancer care in the U.S., and includes PRISM Vision Holdings, LLC (“PRISM Vision”), which drives patient outcomes in a retina and ophthalmology setting. Combined with Sarah Cannon Research Institute and our technology business, Ontada, this segment provides research, insights, technologies, and services that address and improve cancer and specialty care.

•Prescription Technology Solutions segment combines automation and our ability to navigate the healthcare ecosystem to connect patients, pharmacies, providers, pharmacy benefit managers, health plans, and biopharma companies to address patients’ medication access, affordability, and adherence challenges. Prescription Technology Solutions offers technology services, which includes electronic prior authorization, prescription price transparency, benefit insight, dispensing support services, and patient enrollment, in addition to third-party logistics, and wholesale distribution support across various therapeutic categories and temperature ranges to biopharma customers throughout the product lifecycle.

•Medical-Surgical Solutions segment provides medical-surgical, laboratory, and pharmaceutical distribution, logistics, and other services to U.S. healthcare providers operating in the non-acute settings. These include ambulatory care environments, such as physician offices, surgery centers, and hospital reference labs, as well as extended care settings, including nursing homes, hospice and home health care agencies, government facilities, and online marketplaces and retailers. This segment offers national brand medical-surgical products as well as our own line of more than 4,000 high-quality products through a network of distribution centers within the U.S. During fiscal 2026, we announced our intention to separate this segment into an independent company. As a part of the separation strategy, on June 1, 2026, we completed a transaction under which funds managed by affiliates of Apollo Global Management, Inc. (“Apollo Funds”) acquired an approximately 13% minority ownership interest in our Medical‑Surgical Solutions segment through an investment of approximately $1.25 billion in the segment’s convertible preferred equity. We recognized a redeemable noncontrolling interest associated with the divested portion of the Medical‑Surgical Solutions segment. We retain operating control and majority ownership of Medical-Surgical Solutions and continue to consolidate this segment into our consolidated financial statements.