content: <?xml version="1.0" encoding="UTF-8"?><edgarSubmission xmlns="http://www.sec.gov/edgar/ownership" xmlns:com="http://www.sec.gov/edgar/common">
    <!-- Generated by Workiva -->
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      <filerInfo>
        <filer>
          <filerCredentials>
            <cik>0001845308</cik>
            <ccc>XXXXXXXX</ccc>
          </filerCredentials>
        </filer>
        <liveTestFlag>LIVE</liveTestFlag>
  
  
  
      </filerInfo>
    </headerData>
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      <issuerInfo>
        <issuerCik>0001721484</issuerCik>
        <issuerName>Longeveron, Inc.</issuerName>
        <secFileNumber>001-40060</secFileNumber>
        <issuerAddress>
          <com:street1>1951 NW 7th Avenue, Suite 520</com:street1>
          <com:city>Miami</com:city>
          <com:stateOrCountry>FL</com:stateOrCountry>
          <com:zipCode>33136</com:zipCode>
        </issuerAddress>
        <issuerContactPhone>305-909-0840</issuerContactPhone>
        <nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>Rock Soffer</nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>
        <relationshipsToIssuer>
          <relationshipToIssuer>Director</relationshipToIssuer>
        </relationshipsToIssuer>
      </issuerInfo>
      <securitiesInformation>
        <securitiesClassTitle>Class A Common Stock</securitiesClassTitle>
        <brokerOrMarketmakerDetails>
          <name>J.P. Morgan Securities LLC</name>
          <address>
            <com:street1>390 Madison Avenue - 6th Floor</com:street1>
            <com:city>New York</com:city>
            <com:stateOrCountry>NY</com:stateOrCountry>
            <com:zipCode>10017</com:zipCode>
          </address>
        </brokerOrMarketmakerDetails>
        <noOfUnitsSold>21000</noOfUnitsSold>
        <aggregateMarketValue>26775</aggregateMarketValue>
        <noOfUnitsOutstanding>13525301</noOfUnitsOutstanding>
        <approxSaleDate>05/29/2025</approxSaleDate>
        <securitiesExchangeName>NASDAQ</securitiesExchangeName>
      </securitiesInformation>
      <securitiesToBeSold>
        <securitiesClassTitle>Class A Common Stock</securitiesClassTitle>
        <acquiredDate>05/13/2022</acquiredDate>
        <natureOfAcquisitionTransaction>Purchase - Pre-IPO</natureOfAcquisitionTransaction>
        <nameOfPersonfromWhomAcquired>Issuer</nameOfPersonfromWhomAcquired>
        <isGiftTransaction>N</isGiftTransaction>
        <amountOfSecuritiesAcquired>25726</amountOfSecuritiesAcquired>
        <paymentDate>05/13/2022</paymentDate>
        <natureOfPayment>N/A</natureOfPayment>
      </securitiesToBeSold>
      <nothingToReportFlagOnSecuritiesSoldInPast3Months>Y</nothingToReportFlagOnSecuritiesSoldInPast3Months>
      <noticeSignature>
        <noticeDate>05/29/2025</noticeDate>
        <signature>/s/ J.P. Morgan Securities LLC as agent and attorney-in-fact for Rock Soffer</signature>
      </noticeSignature>
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text: 144
  0001845308
  XXXXXXXX
  LIVE
  0001721484
  Longeveron, Inc.
  001-40060
  1951 NW 7th Avenue, Suite 520
  Miami
  FL
  33136
  305-909-0840
  Rock Soffer
  Director
  Class A Common Stock
  J.P. Morgan Securities LLC
  390 Madison Avenue - 6th Floor
  New York
  NY
  10017
  21000
  26775
  13525301
  05/29/2025
  NASDAQ
  Class A Common Stock
  05/13/2022
  Purchase - Pre-IPO
  Issuer
  N
  25726
  05/13/2022
  N/A
  Y
  05/29/2025
  /s/ J.P. Morgan Securities LLC as agent and attorney-in-fact for Rock Soffer