content: <?xml version="1.0" encoding="UTF-8"?><edgarSubmission xmlns="http://www.sec.gov/edgar/ownership" xmlns:com="http://www.sec.gov/edgar/common">
    <headerData>
      <submissionType>144</submissionType>
      <filerInfo>
        <filer>
          <filerCredentials>
            <cik>0001832284</cik>
            <ccc>XXXXXXXX</ccc>
          </filerCredentials>
        </filer>
        <liveTestFlag>LIVE</liveTestFlag>
  
  
      </filerInfo>
    </headerData>
    <formData>
      <issuerInfo>
        <issuerCik>0001836981</issuerCik>
        <issuerName>BigBear.ai Holdings, Inc.</issuerName>
        <secFileNumber>001-40031</secFileNumber>
        <issuerAddress>
          <com:street1>7950 JONES BRANCH DRIVE</com:street1>
          <com:city>MCLEAN</com:city>
          <com:stateOrCountry>VA</com:stateOrCountry>
          <com:zipCode>22102</com:zipCode>
        </issuerAddress>
        <issuerContactPhone>(410) 967-0335</issuerContactPhone>
        <nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>PANGIAM ULTIMATE HOLDINGS, LLC</nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>
        <relationshipsToIssuer>
          <relationshipToIssuer>Shareholder</relationshipToIssuer>
        </relationshipsToIssuer>
      </issuerInfo>
      <securitiesInformation>
        <securitiesClassTitle>Common</securitiesClassTitle>
        <brokerOrMarketmakerDetails>
          <name>Merrill Lynch, Pierce, Fenner &amp; Smith Incorporated</name>
          <address>
            <com:street1>555 California Street</com:street1>
            <com:street2>18th Floor</com:street2>
            <com:city>San Francisco</com:city>
            <com:stateOrCountry>CA</com:stateOrCountry>
            <com:zipCode>94104</com:zipCode>
          </address>
        </brokerOrMarketmakerDetails>
        <noOfUnitsSold>2660841</noOfUnitsSold>
        <aggregateMarketValue>11175532.20</aggregateMarketValue>
        <noOfUnitsOutstanding>250585897</noOfUnitsOutstanding>
        <approxSaleDate>03/07/2025</approxSaleDate>
        <securitiesExchangeName>NYSE</securitiesExchangeName>
      </securitiesInformation>
      <securitiesToBeSold>
        <securitiesClassTitle>Common</securitiesClassTitle>
        <acquiredDate>03/01/2024</acquiredDate>
        <natureOfAcquisitionTransaction>Company acquisition</natureOfAcquisitionTransaction>
        <nameOfPersonfromWhomAcquired>Issuer</nameOfPersonfromWhomAcquired>
        <isGiftTransaction>N</isGiftTransaction>
        <amountOfSecuritiesAcquired>2660841</amountOfSecuritiesAcquired>
        <paymentDate>03/01/2024</paymentDate>
        <natureOfPayment>n/a</natureOfPayment>
      </securitiesToBeSold>
      <nothingToReportFlagOnSecuritiesSoldInPast3Months>Y</nothingToReportFlagOnSecuritiesSoldInPast3Months>
      <remarks>Please see attached for securities sold during the past 3 months.</remarks>
      <noticeSignature>
        <noticeDate>03/07/2025</noticeDate>
        <signature>Melissa Klafter</signature>
      </noticeSignature>
    </formData>
  
  </edgarSubmission>
metadata_documents: [{"type": "144", "sequence": "1", "filename": "primary_doc.xml", "secsgml_size_bytes": 2908}]
text: 144
  0001832284
  XXXXXXXX
  LIVE
  0001836981
  BigBear.ai Holdings, Inc.
  001-40031
  7950 JONES BRANCH DRIVE
  MCLEAN
  VA
  22102
  (410) 967-0335
  PANGIAM ULTIMATE HOLDINGS, LLC
  Shareholder
  Common
  Merrill Lynch, Pierce, Fenner & Smith Incorporated
  555 California Street
  18th Floor
  San Francisco
  CA
  94104
  2660841
  11175532.20
  250585897
  03/07/2025
  NYSE
  Common
  03/01/2024
  Company acquisition
  Issuer
  N
  2660841
  03/01/2024
  n/a
  Y
  Please see attached for securities sold during the past 3 months.
  03/07/2025
  Melissa Klafter