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 -->
    <headerData>
      <submissionType>144</submissionType>
      <filerInfo>
        <filer>
          <filerCredentials>
            <cik>0001692554</cik>
            <ccc>XXXXXXXX</ccc>
          </filerCredentials>
        </filer>
        <liveTestFlag>LIVE</liveTestFlag>
  
  
  
      </filerInfo>
    </headerData>
    <formData>
      <issuerInfo>
        <issuerCik>0001133421</issuerCik>
        <issuerName>Northrop Grumman Corporation</issuerName>
        <secFileNumber>001-16411</secFileNumber>
        <issuerAddress>
          <com:street1>2980 Fairview Park Drive</com:street1>
          <com:city>Falls Church</com:city>
          <com:stateOrCountry>VA</com:stateOrCountry>
          <com:zipCode>22042</com:zipCode>
        </issuerAddress>
        <issuerContactPhone>703-280-2900</issuerContactPhone>
        <nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>Mark Welsh</nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>
        <relationshipsToIssuer>
          <relationshipToIssuer>Affiliate</relationshipToIssuer>
        </relationshipsToIssuer>
      </issuerInfo>
      <securitiesInformation>
        <securitiesClassTitle>Common</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>99</noOfUnitsSold>
        <aggregateMarketValue>45919.17</aggregateMarketValue>
        <noOfUnitsOutstanding>144755659</noOfUnitsOutstanding>
        <approxSaleDate>03/05/2025</approxSaleDate>
        <securitiesExchangeName>NYSE</securitiesExchangeName>
      </securitiesInformation>
      <securitiesToBeSold>
        <securitiesClassTitle>Common</securitiesClassTitle>
        <acquiredDate>05/17/2024</acquiredDate>
        <natureOfAcquisitionTransaction>RSU vesting</natureOfAcquisitionTransaction>
        <nameOfPersonfromWhomAcquired>Issuer</nameOfPersonfromWhomAcquired>
        <isGiftTransaction>N</isGiftTransaction>
        <amountOfSecuritiesAcquired>99</amountOfSecuritiesAcquired>
        <paymentDate>05/17/2024</paymentDate>
        <natureOfPayment>Compensation</natureOfPayment>
      </securitiesToBeSold>
      <nothingToReportFlagOnSecuritiesSoldInPast3Months>N</nothingToReportFlagOnSecuritiesSoldInPast3Months>
      <securitiesSoldInPast3Months>
        <sellerDetails>
          <name>Mark and Elizabeth Welsh</name>
          <address>
            <com:street1>Care of Northrop Grummam Corporation</com:street1>
            <com:street2>2980 Fairview Park Drive</com:street2>
            <com:city>Falls Church</com:city>
            <com:stateOrCountry>VA</com:stateOrCountry>
            <com:zipCode>22042</com:zipCode>
          </address>
        </sellerDetails>
        <securitiesClassTitle>Common</securitiesClassTitle>
        <saleDate>01/06/2025</saleDate>
        <amountOfSecuritiesSold>33</amountOfSecuritiesSold>
        <grossProceeds>15072.29</grossProceeds>
      </securitiesSoldInPast3Months>
      <securitiesSoldInPast3Months>
        <sellerDetails>
          <name>Mark and Elizabeth Welsh</name>
          <address>
            <com:street1>Care of Northrop Grummam Corporation</com:street1>
            <com:street2>2980 Fairview Park Drive</com:street2>
            <com:city>Falls Church</com:city>
            <com:stateOrCountry>VA</com:stateOrCountry>
            <com:zipCode>22042</com:zipCode>
          </address>
        </sellerDetails>
        <securitiesClassTitle>Common</securitiesClassTitle>
        <saleDate>02/05/2025</saleDate>
        <amountOfSecuritiesSold>33</amountOfSecuritiesSold>
        <grossProceeds>15842.5</grossProceeds>
      </securitiesSoldInPast3Months>
      <remarks>Shares represented on the filing will be sold in the next 3 months by Mark and Elizabeth Welsh</remarks>
      <noticeSignature>
        <noticeDate>03/05/2025</noticeDate>
        <signature>/s/ J.P. Morgan Securities LLC as agent and attorney-in-fact for Mark Welsh</signature>
      </noticeSignature>
    </formData>
  </edgarSubmission>
metadata_documents: [{"type": "144", "sequence": "1", "filename": "primary_doc.xml", "secsgml_size_bytes": 4278}]
text: 144
  0001692554
  XXXXXXXX
  LIVE
  0001133421
  Northrop Grumman Corporation
  001-16411
  2980 Fairview Park Drive
  Falls Church
  VA
  22042
  703-280-2900
  Mark Welsh
  Affiliate
  Common
  J.P. Morgan Securities LLC
  390 Madison Avenue - 6th Floor
  New York
  NY
  10017
  99
  45919.17
  144755659
  03/05/2025
  NYSE
  Common
  05/17/2024
  RSU vesting
  Issuer
  N
  99
  05/17/2024
  Compensation
  N
  Mark and Elizabeth Welsh
  Care of Northrop Grummam Corporation
  2980 Fairview Park Drive
  Falls Church
  VA
  22042
  Common
  01/06/2025
  33
  15072.29
  Mark and Elizabeth Welsh
  Care of Northrop Grummam Corporation
  2980 Fairview Park Drive
  Falls Church
  VA
  22042
  Common
  02/05/2025
  33
  15842.5
  Shares represented on the filing will be sold in the next 3 months by Mark and Elizabeth Welsh
  03/05/2025
  /s/ J.P. Morgan Securities LLC as agent and attorney-in-fact for Mark Welsh