<SEC-DOCUMENT>0001214659-25-004003.txt : 20250306
<SEC-HEADER>0001214659-25-004003.hdr.sgml : 20250306
<ACCEPTANCE-DATETIME>20250306180008
ACCESSION NUMBER:		0001214659-25-004003
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20250304
FILED AS OF DATE:		20250306
DATE AS OF CHANGE:		20250306

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Hare Joshua
		CENTRAL INDEX KEY:			0001449392
		ORGANIZATION NAME:           	

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-40060
		FILM NUMBER:		25716660

	MAIL ADDRESS:	
		STREET 1:		C/O 470 NAUTILUS STREET, SUITE 300
		CITY:			LA JOLLA
		STATE:			CA
		ZIP:			92073

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Longeveron Inc.
		CENTRAL INDEX KEY:			0001721484
		STANDARD INDUSTRIAL CLASSIFICATION:	PHARMACEUTICAL PREPARATIONS [2834]
		ORGANIZATION NAME:           	03 Life Sciences
		IRS NUMBER:				472174146
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		1951 NW 7TH AVENUE
		STREET 2:		SUITE 520
		CITY:			MIAMI
		STATE:			FL
		ZIP:			33136
		BUSINESS PHONE:		305-302-7158

	MAIL ADDRESS:	
		STREET 1:		1951 NW 7TH AVENUE
		STREET 2:		SUITE 520
		CITY:			MIAMI
		STATE:			FL
		ZIP:			33136

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	LONGEVERON LLC
		DATE OF NAME CHANGE:	20171101
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>marketforms-68647.xml
<DESCRIPTION>PRIMARY DOCUMENT
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0508</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2025-03-04</periodOfReport>

    <issuer>
        <issuerCik>0001721484</issuerCik>
        <issuerName>Longeveron Inc.</issuerName>
        <issuerTradingSymbol>LGVN</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001449392</rptOwnerCik>
            <rptOwnerName>Hare Joshua</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>1951 NW 7TH AVENUE</rptOwnerStreet1>
            <rptOwnerStreet2>SUITE 520</rptOwnerStreet2>
            <rptOwnerCity>MIAMI</rptOwnerCity>
            <rptOwnerState>FL</rptOwnerState>
            <rptOwnerZipCode>33136</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>true</isDirector>
            <isOfficer>true</isOfficer>
            <isTenPercentOwner>true</isTenPercentOwner>
            <isOther>false</isOther>
            <officerTitle>Chief Scientific Officer</officerTitle>
            <otherText></otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <aff10b5One>0</aff10b5One>

    <nonDerivativeTable></nonDerivativeTable>

    <derivativeTable>
        <derivativeTransaction>
            <securityTitle>
                <value>Stock Option (right to buy)</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <value>1.33</value>
            </conversionOrExercisePrice>
            <transactionDate>
                <value>2025-03-04</value>
            </transactionDate>
            <deemedExecutionDate></deemedExecutionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>false</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness></transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>71254</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <exerciseDate>
                <footnoteId id="F1"/>
            </exerciseDate>
            <expirationDate>
                <value>2035-03-04</value>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>71254</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>71254</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </derivativeTransaction>
    </derivativeTable>

    <footnotes>
        <footnote id="F1">The option will 100% cliff vest on July 1, 2025, following the 2025 Annual Stockholders Meeting, wherein approval is given to increase the pool of shares available for awards under the Plan.  In the event stockholder approval is not received at the 2025 meeting, then this option will not in any cirumstances vest until such time as additional shares are added to, and made available under the Second Amended and Restated 2021 Incentive Award Plan.</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>/s/ Paul T. Lehr, attorney-in-fact</signatureName>
        <signatureDate>2025-03-06</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
