<?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>0002024196</cik>
          <ccc>XXXXXXXX</ccc>
        </filerCredentials>
      </filer>
      <liveTestFlag>LIVE</liveTestFlag>



    </filerInfo>
  </headerData>
  <formData>
    <issuerInfo>
      <issuerCik>0001699031</issuerCik>
      <issuerName>GRAIL, Inc.</issuerName>
      <secFileNumber>001-42045</secFileNumber>
      <issuerAddress>
        <com:street1>1525 O'Brien Drive</com:street1>
        <com:city>Menlo Park</com:city>
        <com:stateOrCountry>CA</com:stateOrCountry>
        <com:zipCode>94025</com:zipCode>
      </issuerAddress>
      <issuerContactPhone>415-528-0644</issuerContactPhone>
      <nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>Aaron Freidin</nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>
      <relationshipsToIssuer>
        <relationshipToIssuer>Officer</relationshipToIssuer>
      </relationshipsToIssuer>
    </issuerInfo>
    <securitiesInformation>
      <securitiesClassTitle>Common Stock</securitiesClassTitle>
      <brokerOrMarketmakerDetails>
        <name>ETRADE FINANCIAL CORPORATION</name>
        <address>
          <com:street1>3 EDISON DRIVE</com:street1>
          <com:city>ALPHARETTA</com:city>
          <com:stateOrCountry>GA</com:stateOrCountry>
          <com:zipCode>30005</com:zipCode>
        </address>
      </brokerOrMarketmakerDetails>
      <noOfUnitsSold>49414</noOfUnitsSold>
      <aggregateMarketValue>2556680.36</aggregateMarketValue>
      <noOfUnitsOutstanding>41134219</noOfUnitsOutstanding>
      <approxSaleDate>04/03/2026</approxSaleDate>
      <securitiesExchangeName>NASDAQ</securitiesExchangeName>
    </securitiesInformation>
    <securitiesToBeSold>
      <securitiesClassTitle>Common Stock</securitiesClassTitle>
      <acquiredDate>04/03/2026</acquiredDate>
      <natureOfAcquisitionTransaction>Shares acquired upon vesting of restricted stock units awarded under Issuer's equity incentive plans</natureOfAcquisitionTransaction>
      <nameOfPersonfromWhomAcquired>Issuer</nameOfPersonfromWhomAcquired>
      <isGiftTransaction>N</isGiftTransaction>
      <amountOfSecuritiesAcquired>79460</amountOfSecuritiesAcquired>
      <paymentDate>04/03/2026</paymentDate>
      <natureOfPayment>Services rendered</natureOfPayment>
    </securitiesToBeSold>
    <nothingToReportFlagOnSecuritiesSoldInPast3Months>N</nothingToReportFlagOnSecuritiesSoldInPast3Months>
    <securitiesSoldInPast3Months>
      <sellerDetails>
        <name>Aaron Freidin</name>
        <address>
          <com:street1>1525 O'Brien Drive</com:street1>
          <com:city>Menlo Park</com:city>
          <com:stateOrCountry>CA</com:stateOrCountry>
          <com:zipCode>94025</com:zipCode>
        </address>
      </sellerDetails>
      <securitiesClassTitle>Common Stock</securitiesClassTitle>
      <saleDate>03/02/2026</saleDate>
      <amountOfSecuritiesSold>9573</amountOfSecuritiesSold>
      <grossProceeds>480244.38</grossProceeds>
    </securitiesSoldInPast3Months>
    <securitiesSoldInPast3Months>
      <sellerDetails>
        <name>Aaron Freidin</name>
        <address>
          <com:street1>1525 O'Brien Drive</com:street1>
          <com:city>Menlo Park</com:city>
          <com:stateOrCountry>CA</com:stateOrCountry>
          <com:zipCode>94025</com:zipCode>
        </address>
      </sellerDetails>
      <securitiesClassTitle>Common Stock</securitiesClassTitle>
      <saleDate>03/05/2026</saleDate>
      <amountOfSecuritiesSold>655</amountOfSecuritiesSold>
      <grossProceeds>34721.55</grossProceeds>
    </securitiesSoldInPast3Months>
    <securitiesSoldInPast3Months>
      <sellerDetails>
        <name>Aaron Freidin</name>
        <address>
          <com:street1>1525 O'Brien Drive</com:street1>
          <com:city>Menlo Park</com:city>
          <com:stateOrCountry>CA</com:stateOrCountry>
          <com:zipCode>94025</com:zipCode>
        </address>
      </sellerDetails>
      <securitiesClassTitle>Common Stock</securitiesClassTitle>
      <saleDate>03/09/2026</saleDate>
      <amountOfSecuritiesSold>2492</amountOfSecuritiesSold>
      <grossProceeds>119340.41</grossProceeds>
    </securitiesSoldInPast3Months>
    <remarks>Represents an estimate of shares expected to be sold to cover tax obligations upon vesting of restricted stock units on April 3rd, 2026, based on an estimated price per share of $51.74, which was the closing price of a share of the Company's common stock on April 6, 2026.</remarks>
    <noticeSignature>
      <noticeDate>04/06/2026</noticeDate>
      <signature>/s/Donald Lang, as Attorneyin-Fact for Aaron Freidin</signature>
    </noticeSignature>
  </formData>
</edgarSubmission>
