Vaxart encourages all stockholders of record on March 26, 2025 who have not yet voted to do so by 11:59 p.m. Eastern Time on June 12, 2025. The Company also reminds those who have previously voted against Proposal No. 2 that they can change their vote in favor of the proposal. If you have any questions or need assistance with voting, please contact Vaxart's proxy solicitation firm: Campaign Management, LLC Toll-Free: 1-855-264-1527 Email: About Vaxart Vaxart is a clinical-stage biotechnology company developing a range of oral recombinant vaccines based on its proprietary delivery platform. Vaxart vaccines are designed to be administered using pills that can be stored and shipped without refrigeration and eliminate the risk of needle-stick injury. Vaxart believes that its proprietary pill vaccine delivery platform is suitable to deliver recombinant vaccines, positioning the company to develop oral versions of currently marketed vaccines and to design recombinant vaccines for new indications.