X0306 4 2020-06-08 0000072444 Vaxart, Inc. VXRT 0001392029 Davis Todd C C/O VAXART, INC. 385 OYSTER POINT BOULEVARD, SUITE 9A SOUTH SAN FRANCISCO CA 94080 1 Stock Option (right to buy) 2.39 2020-06-08 4 A 0 65700 0 A 2021-06-08 2030-06-07 Common Stock 65700 65700 D The shares subject to this option shall vest on the first anniversary of the 2020 annual meeting of stockholders of the Issuer. /s/ Wouter W. Latour, M.D., Attorney-in-Fact for Todd C. Davis 2020-06-09