UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) For the quarterly period ended March 31, 2025 or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Commission File Number: 001-37702 Amgen Inc. (Exact name of registrant as specified in its charter) (State or other jurisdiction of incorporation or organization) One Amgen Center Drive Thousand Oaks California QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES E ...