X0407 4 2023-06-10 0 0001000694 NOVAVAX INC NVAX 0001589712 King Rachel K. C/O NOVAVAX, INC. 21 FIRSTFIELD ROAD GAITHERSBURG MD 20878 1 0 0 0 0 Common Stock 2023-06-10 4 M 0 3100 A 10050 D Common Stock 1100 I See Footnote Common Stock 1100 I See Footnote Restricted Stock Units 2023-06-10 4 M 0 3100 0.00 D Common Stock 3100 0 D Stock Option (Right to Buy) 7.78 2023-06-12 4 A 0 7710 0.00 A 2024-06-12 2033-06-12 Common Stock 7710 7710 D Restricted Stock Units 2023-06-12 4 A 0 6670 0.00 A Common Stock 6670 6670 D Each restricted stock unit ("RSU") represents a contingent right to receive one share of Novavax, Inc. (the "Company") common stock. Represents shares attributable to the Reporting Person as indirect holdings held in a trust for the benefit of the Reporting Person's child. One hundred percent (100%) of the RSUs subject to this grant under the Company's Amended and Restated 2015 Stock Incentive Plan, as amended (the "Plan"), vested on the first anniversary of the June 10, 2022 grant date subject to continued service on the Company's Board of Directors through the vesting date. One hundred percent (100%) of the shares subject to this option grant under the Plan will vest one (1) year from the June 12, 2023 grant date (the "Grant Date") subject to continued service on the Company's Board of Directors through the vesting date. One hundred percent (100%) of the RSUs subject to this grant under the Plan will vest one (1) year from the Grant Date subject to continued service on the Company's Board of Directors through the vesting date. /s/ John A. Herrmann III, Attorney-in-Fact 2023-06-13