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            <ccc>XXXXXXXX</ccc>
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        <liveTestFlag>LIVE</liveTestFlag>
  
  
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      <issuerInfo>
        <issuerCik>0001448397</issuerCik>
        <issuerName>Seanergy Maritime Holdings Corp.</issuerName>
        <secFileNumber>001-34848</secFileNumber>
        <issuerAddress>
          <com:street1>154 VOULIAGMENIS AVENUE</com:street1>
          <com:street2>GLYFADA</com:street2>
          <com:city>ATHENS</com:city>
          <com:stateOrCountry>J3</com:stateOrCountry>
          <com:zipCode>16674</com:zipCode>
        </issuerAddress>
        <issuerContactPhone>30 210 8913507</issuerContactPhone>
        <nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>KARTSONAS IOANNIS</nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>
        <relationshipsToIssuer>
          <relationshipToIssuer>Director</relationshipToIssuer>
        </relationshipsToIssuer>
      </issuerInfo>
      <securitiesInformation>
        <securitiesClassTitle>COMMON</securitiesClassTitle>
        <brokerOrMarketmakerDetails>
          <name>TD AMERITRADE</name>
          <address>
            <com:street1>200 S 108TH AVE</com:street1>
            <com:city>OMAHA</com:city>
            <com:stateOrCountry>NE</com:stateOrCountry>
            <com:zipCode>68154</com:zipCode>
          </address>
        </brokerOrMarketmakerDetails>
        <noOfUnitsSold>65000</noOfUnitsSold>
        <aggregateMarketValue>380000.00</aggregateMarketValue>
        <noOfUnitsOutstanding>19648956</noOfUnitsOutstanding>
        <approxSaleDate>10/30/2023</approxSaleDate>
        <securitiesExchangeName>NASDAQ</securitiesExchangeName>
      </securitiesInformation>
      <securitiesToBeSold>
        <securitiesClassTitle>COMMON</securitiesClassTitle>
        <acquiredDate>07/12/2022</acquiredDate>
        <natureOfAcquisitionTransaction>STOCK AWARD</natureOfAcquisitionTransaction>
        <nameOfPersonfromWhomAcquired>SEANERGY MARITIME HOLDINGS CORP</nameOfPersonfromWhomAcquired>
        <isGiftTransaction>N</isGiftTransaction>
        <amountOfSecuritiesAcquired>40000</amountOfSecuritiesAcquired>
        <paymentDate>07/12/2022</paymentDate>
        <natureOfPayment>COMPENSATION</natureOfPayment>
      </securitiesToBeSold>
      <securitiesToBeSold>
        <securitiesClassTitle>COMMON</securitiesClassTitle>
        <acquiredDate>03/22/2023</acquiredDate>
        <natureOfAcquisitionTransaction>STOCK AWARD</natureOfAcquisitionTransaction>
        <nameOfPersonfromWhomAcquired>SEANERGY MARITIME HOLDINGS CORP</nameOfPersonfromWhomAcquired>
        <isGiftTransaction>N</isGiftTransaction>
        <amountOfSecuritiesAcquired>100000</amountOfSecuritiesAcquired>
        <paymentDate>03/22/2023</paymentDate>
        <natureOfPayment>COMPENSATION</natureOfPayment>
      </securitiesToBeSold>
      <nothingToReportFlagOnSecuritiesSoldInPast3Months>Y</nothingToReportFlagOnSecuritiesSoldInPast3Months>
      <noticeSignature>
        <noticeDate>10/26/2023</noticeDate>
        <signature>IOANNIS KARTSONAS</signature>
      </noticeSignature>
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text: 144
  0001979079
  XXXXXXXX
  LIVE
  0001448397
  Seanergy Maritime Holdings Corp.
  001-34848
  154 VOULIAGMENIS AVENUE
  GLYFADA
  ATHENS
  J3
  16674
  30 210 8913507
  KARTSONAS IOANNIS
  Director
  COMMON
  TD AMERITRADE
  200 S 108TH AVE
  OMAHA
  NE
  68154
  65000
  380000.00
  19648956
  10/30/2023
  NASDAQ
  COMMON
  07/12/2022
  STOCK AWARD
  SEANERGY MARITIME HOLDINGS CORP
  N
  40000
  07/12/2022
  COMPENSATION
  COMMON
  03/22/2023
  STOCK AWARD
  SEANERGY MARITIME HOLDINGS CORP
  N
  100000
  03/22/2023
  COMPENSATION
  Y
  10/26/2023
  IOANNIS KARTSONAS