MCK: Financial results

Item 2.02 Results of Operations and Financial Condition. On November 4, 2026, McKesson Corporation (the “Company”) reported the Company’s preliminary results for the quarter ended on September 30, 2026 which are attached hereto as Exhibit 99.1. The information contained in this Form 8-K, including Exhibit 99.1, is furnished to the Securities and Exchange Commission (the “Commission”), but shall not be deemed “filed” with the Commission for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or incorporated by reference in any filing under the Securities Act of 1933, as amended, or the Exchange Act except as shall be expressly set forth by specific reference in such a filing. Item 9.01 Financial Statements and Exhibits. (d) Exhibits. Exhibit No. Description 99.1 Earnings release issued by the Company dated November 4 , 2026 104 Cover Page Interactive Data File - the cover page iXBRL tags are embedded within the Inline XBRL document SIGNATURES Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized. Date: November 4, 2026 McKesson Corporation By: /s/ Kenny K. Cheung Kenny K. Cheung Executive Vice President and Chief Financial Officer