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 report our financial results in four reportable segments: U.S. Pharmaceutical, Prescription Technology Solutions (“RxTS”), Medical-Surgical Solutions, and International. 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 operating 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.

•U.S. Pharmaceutical is a reportable segment that distributes branded, generic, specialty, biosimilar, and over-the-counter pharmaceutical drugs and other healthcare-related products in the United States (“U.S.”). This segment also provides practice management, technology, clinical support, and business solutions to community-based oncology and other specialty practices. In addition, the segment sells financial, operational, and clinical solutions to pharmacies (retail, hospital, alternate sites) and provides consulting, outsourcing, technological, and other services.

•Prescription Technology Solutionsis a reportable segment that 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. RxTS offers technology services, which includes electronic prior authorization, prescription price transparency, benefit insight, dispensing support services, 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 is a reportable segment that provides medical-surgical supply distribution, logistics, and other services to healthcare providers, including physician offices, surgery centers, nursing homes, hospital reference labs, and home health care agencies. This segment offers national brand medical-surgical products as well as McKesson’s own line of high-quality products through a network of distribution centers within the U.S. During the three months ended June 30, 2025, we announced our intention to separate this segment into an independent company.

•International is a reportable segment that includes our operations in Canada and Norway, bringing together non-U.S.-based drug distribution services, specialty pharmacy, retail, and infusion care services. Our Canadian operations deliver medicines, supplies, and information technology solutions throughout Canada. During fiscal 2025, we completed the sale of Rexall and Well.ca businesses in Canada (“Canadian retail disposal group”). Refer to Financial Note 2, “Business Acquisitions and Divestitures,” to the accompanying condensed consolidated financial statements in this Quarterly Report for additional information regarding this divestiture. Our Norwegian operations provide distribution and services to wholesale and retail customers in Norway where we own, partner, or franchise with retail pharmacies.

Business Acquisitions and Divestitures

PRISM Vision Holdings, LLC

On April 1, 2025, we completed the acquisition of a controlling interest in PRISM Vision Holdings, LLC (“PRISM Vision”), a leading provider of general ophthalmology and retina management services. We acquired an 80% interest in PRISM Vision for $874 million in cash and PRISM Vision physicians retained a 20% interest. As of the acquisition date, the financial results of PRISM Vision are reported within our U.S. Pharmaceutical segment.

Community Oncology Revitalization Enterprise Ventures, LLC

On June 2, 2025, we completed the acquisition of a controlling interest in Community Oncology Revitalization Enterprise Ventures, LLC (“Core Ventures”), a business and administrative services organization established by Florida Cancer Specialists & Research Institute, LLC, (“FCS”). We acquired a 70% controlling interest in Core Ventures for $2.5 billion in cash and FCS physicians retained 30% interest. As of the acquisition date, Core Ventures is a part of the Oncology platform and financial results are reported within our U.S. Pharmaceutical segment.

Refer to Financial Note 2, “Business Acquisitions and Divestitures,” to the accompanying condensed consolidated financial statements in this Quarterly Report for additional information regarding these acquisition transactions.