X0508 4 2023-06-26 0000072444 Vaxart, Inc. VXRT 0001789507 Wheadon David E. C/O VAXART, INC. 170 HARBOR WAY, SUITE 300 SOUTH SAN FRANCISCO CA 94080 1 0 Common Stock 2023-06-26 4 A 0 7375 0 A 14750 D Stock Option (right to buy) 0.74 2023-06-26 4 A 0 44224 0 A 2033-06-26 Common Stock 44224 44224 D Grant of shares upon vesting of restricted stock units. The shares underlying the award shall vest on the earlier of the date immediately prior of the 2024 annual meeting of stockholders of the Issuer and June 26, 2024, the first anniversary date of the grant. The shares subject to this option shall vest on the earlier of the date immediately prior of the 2024 annual meeting of stockholders of the Issuer and June 26, 2024, the first anniversary of the date of the grant. /s/ Edward Berg, Attorney-in-Fact for David Wheadon 2023-08-01