Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 NOVAVAX, INC. (Exact name of registrant as specified in its charter) Delaware 22-2816046 (State or other jurisdiction of incorporation or organization) 21 Firstfield Road, Gaithersburg, MD 20878 (Address of principal executive offices) (Zip code) Form 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 2025 OR ☐ TRANSITION REPORT PU ...