IMMUNIC, INC.

false 0001280776 0001280776 2026-09-10 2026-09-10 iso4217:USD xbrli:shares iso4217:USD xbrli:shares 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): September 10, 2026 IMMUNIC, INC. (Exact name of registrant as specified in its charter) Delaware 001-36201 56-2358443 (State or other jurisdiction of incorporation) (Commission File Number) (IRS Employer Identification No.) 1200 Avenue of the Americas , Suite 200 New York , NY 10036 USA (Address of principal executive offices) Registrant’s telephone number, including area code: (332) 255-9818 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(s) Name of exchange on which registered Common Stock, par value $0.0001 IMUX The Nasdaq Stock Market LLC 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 (§ 240.12b2 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. Yes ☐ No ☐ Item 5.02. Departure of Directors or Principal Officers; Election of Directors; Appointment of Principal Officers. Resignation of Director On September 10, 2026, Dr. Duane Nash resigned as a member of the Board of Directors (the “Board”) of Immunic, Inc., a Delaware corporation (the “Company”). Dr. Nash’s resignation was not the result of any disagreement with the Company on any matter relating to the Company’s operations, policies, or practices. The Board and the Company are deeply grateful for Dr. Nash’s service, dedication, and contributions to the Company. In connection with Dr. Nash’s resignation, by resolution of the Board, the size of the Board was reduced from ten members to nine members. Item 9.01. Financial Statements and Exhibits. Exhibit Number Description 104 Cover Page Interactive Data File-the cover page XBRL tags are embedded within the Inline XBRL document. SIGNATURES Pursuant to the requirements of the Securities Exchange Act of 1934, as amended, the Registrant has duly caused this report to be signed on its behalf by the undersigned, hereunto duly authorized. Dated: September 11, 2026 Immunic, Inc. By: /s/ Erik Lundgren Erik Lundgren Chief Executive Officer