LONGEVERON INC., 10-K/A filed on 3/11/2024
Amended Annual Report
v3.24.0.1
Document And Entity Information - USD ($)
12 Months Ended
Dec. 31, 2023
Feb. 23, 2024
Jun. 30, 2023
Document Information Line Items      
Entity Registrant Name LONGEVERON INC.    
Trading Symbol LGVN    
Document Type 10-K/A    
Current Fiscal Year End Date --12-31    
Entity Public Float     $ 19,016,000
Amendment Flag true    
Amendment Description This Amendment No. 1 on Form 10-K/A (this “Amendment”) amends the Annual Report on Form 10-K of Longeveron Inc. (the “Company”) for the fiscal year ended December 31, 2023, as filed with the Securities and Exchange Commission (the “SEC”) on February 27, 2024 (the “Original Form 10-K”). This Amendment is being filed solely to correct scrivener’s errors in the Original Form 10-K under Part I, Item 1: Business in the description of the Company’s owned intellectual property concerning (i) Mesenchymal stem cells as vaccine adjuvants and methods for using the same (“Patent Family 1”) and (ii) methods of using human mesenchymal stem cells to effect cellular and humoral immunity (“Patent Family 2”). The Original Form 10-K erroneously disclosed that the Company (a) owned and was continuing to prosecute and maintain a U.S. patent application in Patent Family 1, (b) had one allowed patent application and one pending patent application in Japan in Patent Family 1 and (c) received a notice of allowance for certain patent applications in Patent Family 2. This Amendment corrects this disclosure to correctly indicate that the Company (x) received a notice of allowance for a U.S. patent application in Patent Family 1, (y) has two pending patent applications in Japan in Patent Family 1 and (z) owns certain patent applications in Patent Family 2.As required under SEC rules, this Amendment sets forth the complete text of Part I, Item 1: Business, as amended and restated. In addition, as required by Rule 12b-15 under the Securities Exchange Act of 1934, as amended (the “Exchange Act”), new certifications by the Company’s principal executive officer and principal financial officer are filed herewith as exhibits to this Amendment pursuant to Rules 13a-14(a) and 15(d)-14(a) of the Exchange Act and Section 1350 of Chapter 63 of Title 18 of the United States Code (18 U.S.C. § 1350).Except as described above, no other changes have been made to the Original Form 10-K, and this Amendment does not otherwise amend, update or change the financial statements or other disclosures in the Original Form 10-K. This Amendment speaks as of the filing date of the Original Form 10-K and does not (i) reflect events, results or developments that occurred or facts that became known after the filing date of the Original Form 10-K or (ii) modify or update those disclosures affected by subsequent events, results, developments or facts. Among other things, forward-looking statements made in the Original Form 10-K have not been revised to reflect events, results or developments that occurred or facts that became known to us after the date of the Original Form 10-K, and such statements should be read in conjunction with our filings with the SEC subsequent to the Original Form 10-K. This Amendment should be read in conjunction with the Company’s other filings with the SEC subsequent to February 27, 2024.    
Entity Central Index Key 0001721484    
Entity Current Reporting Status Yes    
Entity Voluntary Filers No    
Entity Filer Category Non-accelerated Filer    
Entity Well-known Seasoned Issuer No    
Document Period End Date Dec. 31, 2023    
Document Fiscal Year Focus 2023    
Document Fiscal Period Focus FY    
Entity Small Business true    
Entity Emerging Growth Company true    
Entity Shell Company false    
Entity Ex Transition Period false    
ICFR Auditor Attestation Flag false    
Document Annual Report true    
Document Transition Report false    
Entity File Number 001-40060    
Entity Incorporation, State or Country Code DE    
Entity Tax Identification Number 47-2174146    
Entity Address, Address Line One 1951 NW 7th Avenue    
Entity Address, Address Line Two Suite 520    
Entity Address, City or Town Miami    
Entity Address, State or Province FL    
Entity Address, Postal Zip Code 33136    
City Area Code (305)    
Local Phone Number 909-0840    
Title of 12(b) Security Common Stock, par value $0.001    
Security Exchange Name NASDAQ    
Entity Interactive Data Current Yes    
Document Financial Statement Error Correction [Flag] false    
Documents Incorporated by Reference [Text Block] None    
Auditor Name Marcum LLP    
Auditor Location Hartford, CT    
Auditor Firm ID 688    
Class A Common Stock      
Document Information Line Items      
Entity Common Stock, Shares Outstanding   10,294,603  
Class B Common Stock      
Document Information Line Items      
Entity Common Stock, Shares Outstanding   14,839,993