Longeveron Inc.

false 0001721484 0001721484 2026-07-24 2026-07-24 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): July 24, 2026 Longeveron Inc. (Exact name of registrant as specified in its charter) Delaware 001-40060 47-2174146 (State or other jurisdiction of incorporation) (Commission File Number) (IRS Employer Identification No.) 1951 NW 7th Avenue , Suite 520 , Miami , Florida 33136 (Address of principal executive offices) Registrant’s telephone number, including area code: ( 305 ) 909-0840 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 each exchange on which registered Class A Common Stock, $0.001 par value per share LGVN 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 8.01 Other Events As previously disclosed, following the resignation of a member of the Board of Directors (the “Board”) of Longeveron Inc. (the “Company”) in March of this year, the Company temporarily failed to be in compliance with Nasdaq Listing Rule 5605(c)(2)(A), which requires that the audit committee of a listed company be composed of at least three independent directors and that at least one member qualifies as an audit committee financial expert. Following the election of three new members of the Board at the Company’s annual meeting in July, at a subsequent Board meeting held on July 24, 2026, the Board approved the reconstitution of the Company’s Audit Committee so to consist of Dr. Deborah Ascheim, Ms. Leah Rush Cann, Dr. George Paletta and Ms. Ursula Ungaro. Each member of the Audit Committee qualifies as independent, and Ms. Cann further qualifies as an audit committee financial expert, as defined in Item 407(d)(5)(ii) of Regulation S-K promulgated under the Securities Act of 1933, as amended, and under Nasdaq Listing Rule 5605(c)(2). 1 SIGNATURE 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. LONGEVERON INC. Date: July 29, 2026 /s/ Marie Washburn Name: Marie Washburn Title: Chief Financial Officer 2