X0607 3 2026-04-23 1 0000072444 Vaxart, Inc. VXRT 0001244823 BREITMEYER JAMES B false C/O VAXART, INC. 310 UTAH AVENUE, SUITE 150 SOUTH SAN FRANCISCO CA 94080 1 Exhibit List - Exhibit 24.1 - Power of Attorney /s/ Edward Berg, as attorney-in-fact for James B. Breitmeyer 2026-05-01