Reg FD Disclosure

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549   FORM 8-K   CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934   Date of Report (Date of earliest event reported):             May 5, 2025     Vaxart, Inc.     (Exact name of registrant as specified in its charter)       Delaware   001-35285   59-1212264 (State or other jurisdiction of incorporation)   (Commission File Number)   (IRS Employer Identification No.)           170 Harbor Way, Suite 300 , South San Francisco , California   94080 (Address of principal executive offices)   (Zip Code)     Registrant’s telephone number, including area code:        ( 650 ) 550-3500       Not Applicable     (Former name or former address, if changed since last report.)     Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:   ☐ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)   ☐ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)   ☐ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))   ☐ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))   Securities registered pursuant to Section 12(b) of the Act:   Title of each class   Trading symbol   Name of each exchange on which registered Common Stock ,$0.0001 par value   VXRT   The Nasdaq Capital Market   Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).   Emerging Growth Company           ☐   If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act.          ☐         Item 7.01 Regulation FD Disclosure.   On May 5, 2025, Vaxart, Inc. (the “Company”) issued a letter to stockholders from its Chief Executive Officer, Steven Lo, and a press release regarding the latest developments in the Company’s vaccine programs and the proposed reverse stock split to be voted on at the Company’s upcoming 2025 Annual Meeting of Stockholders.   Copies of the letter and the press release are being furnished as Exhibits 99.1 and 99.2, respectively, to this Current Report on Form 8-K. Pursuant to the rules and regulations of the Securities and Exchange Commission (the “SEC”), the information in this Item 7.01, including Exhibits 99.1 and 99.2 and the information set forth therein, is deemed to have been furnished to, and shall not be deemed to be “filed” with, the SEC for purposes of Section 18 of the Securities Exchange Act of 1934, as amended.         Item 9.01   Financial Statements and Exhibits.       Exhibit No.   Description 99.1   Letter, dated May 5, 2025. 99.2   Press Release, dated May 5, 2025. 104   Cover Page Interactive Data File (embedded within the Inline XBRL document).         SIGNATURES   Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.   Date: May 5, 2025 VAXART, INC.       /s/ Phillip Lee   Phillip Lee   Chief Financial Officer