MCK: Material agreement · New financial obligation

Item 1.01 Entry into a Material Definitive Agreement. On June 9, 2026, certain of McKesson Corporation’s (the “Company”) subsidiaries, including McKesson Medical-Surgical Top Holdings, Inc. (the “Borrower”), entered into an amendment (the “Amendment”) to the Credit Agreement , dated as of April 1, 2026, among, the Borrower, the lenders from time to time party thereto and JPMorgan Chase Bank, N.A., as administrative agent and collateral agent (as so amended, the “Credit Agreement”), to provide for a $2,250.0 million senior secured term “B” loan facility due 2032 (the “Term B Loan Facility”). All other terms of the Credit Agreement will remain substantially the same except as amended by the Amendment. Borrowings under the Term B Loan Facility will bear interest, at the Borrower’s option, at a rate equal to either (i) the Adjusted Term SOFR Rate (as defined in the Credit Agreement), plus an applicable margin equal to 2.25% per annum or (ii) the Base Rate (as defined in the Credit Agreement), plus an applicable margin equal to 1.25% per annum. The Borrower selected an initial interest rate equal to the Adjusted Term SOFR Rate plus the applicable margin of 2.25% per annum. All of the Borrower’s obligations under the Credit Agreement are secured, subject to certain exceptions and Excluded Assets (as defined in the Credit Agreement), by a security interest in substantially all tangible and intangible assets of the Borrower and each of the Borrower’s certain material U.S. subsidiaries (such entities, collectively, “Guarantors”). Under the Credit Agreement, the Borrower will be subject to financial covenants (subject to customary cure rights) consisting of (i) a maximum the total net leverage ratio covenant and (ii) a minimum interest coverage ratio covenant. In the ordinary cou