Material Event (Form 8-K)

On June 12, 2026, Viatris Inc. (the "Company") entered into an underwriting agreement (the "Underwriting Agreement") with the several underwriters named in Schedule I thereto, for whom BNP PARIBAS, Citigroup Global Markets Limited and Goldman Sachs & Co. LLC are acting as representatives, to issue and sell (the "Offering") €650,000,000 principal amount of its 4.250% Senior Notes due 2033 (the "Notes"). The Notes are being offered pursuant to a Registration Statement on Form S-3 (File No. 333-287087), which became effective upon filing, and a Prospectus Supplement dated June 12, 2026, to a Prospectus dated May 8, 2025. The Offering is expected to close on June 17, 2026, subject to customary closing conditions.

The Underwriting Agreement contains customary representations and warranties, agreements and obligations, conditions to closing and termination provisions. The foregoing description of the Underwriting Agreement does not purport to be complete and is qualified in its entirety by reference to the full text of the Underwriting Agreement, a copy of which is filed herewith as Exhibit 1.1 and is incorporated herein by reference.