<?xml version="1.0" encoding="UTF-8"?><own:edgarSubmission xmlns:com="http://www.sec.gov/edgar/common" xmlns:own="http://www.sec.gov/edgar/ownership">
  <!-- Generated by Workiva -->
  <own:headerData>
    <own:submissionType>144</own:submissionType>
    <own:filerInfo>
      <own:filer>
        <own:filerCredentials>
          <own:cik>0001393571</own:cik>
          <own:ccc>XXXXXXXX</own:ccc>
        </own:filerCredentials>
      </own:filer>
      <own:liveTestFlag>LIVE</own:liveTestFlag>



    </own:filerInfo>
  </own:headerData>
  <own:formData>
    <own:issuerInfo>
      <own:issuerCik>0001428439</own:issuerCik>
      <own:issuerName>ROKU, Inc.</own:issuerName>
      <own:secFileNumber>001-38211</own:secFileNumber>
      <own:issuerAddress>
        <com:street1>1173 Coleman Avenue</com:street1>
        <com:city>San Jose</com:city>
        <com:stateOrCountry>CA</com:stateOrCountry>
        <com:zipCode>95110</com:zipCode>
      </own:issuerAddress>
      <own:issuerContactPhone>408-556-9040</own:issuerContactPhone>
      <own:nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>Neil Hunt</own:nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>
      <own:relationshipsToIssuer>
        <own:relationshipToIssuer>Director</own:relationshipToIssuer>
      </own:relationshipsToIssuer>
    </own:issuerInfo>
    <own:securitiesInformation>
      <own:securitiesClassTitle>Common</own:securitiesClassTitle>
      <own:brokerOrMarketmakerDetails>
        <own:name>Merrill Lynch</own:name>
        <own:address>
          <com:street1>555 California Street</com:street1>
          <com:street2>Suite 1800</com:street2>
          <com:city>San Francisco</com:city>
          <com:stateOrCountry>CA</com:stateOrCountry>
          <com:zipCode>94104</com:zipCode>
        </own:address>
      </own:brokerOrMarketmakerDetails>
      <own:noOfUnitsSold>2000</own:noOfUnitsSold>
      <own:aggregateMarketValue>244222.44</own:aggregateMarketValue>
      <own:noOfUnitsOutstanding>130717715</own:noOfUnitsOutstanding>
      <own:approxSaleDate>05/01/2026</own:approxSaleDate>
      <own:securitiesExchangeName>Nasdaq</own:securitiesExchangeName>
    </own:securitiesInformation>
    <own:securitiesToBeSold>
      <own:securitiesClassTitle>Common</own:securitiesClassTitle>
      <own:acquiredDate>05/01/2026</own:acquiredDate>
      <own:natureOfAcquisitionTransaction>Stock Option Exercise</own:natureOfAcquisitionTransaction>
      <own:nameOfPersonfromWhomAcquired>Issuer</own:nameOfPersonfromWhomAcquired>
      <own:isGiftTransaction>N</own:isGiftTransaction>
      <own:amountOfSecuritiesAcquired>2000</own:amountOfSecuritiesAcquired>
      <own:paymentDate>04/01/2026</own:paymentDate>
      <own:natureOfPayment>Cash</own:natureOfPayment>
    </own:securitiesToBeSold>
    <own:nothingToReportFlagOnSecuritiesSoldInPast3Months>N</own:nothingToReportFlagOnSecuritiesSoldInPast3Months>
    <own:securitiesSoldInPast3Months>
      <own:sellerDetails>
        <own:name>Neil Hunt</own:name>
        <own:address>
          <com:street1>1173 Coleman Avenue</com:street1>
          <com:city>San Francisco</com:city>
          <com:stateOrCountry>CA</com:stateOrCountry>
          <com:zipCode>95110</com:zipCode>
        </own:address>
      </own:sellerDetails>
      <own:securitiesClassTitle>Common</own:securitiesClassTitle>
      <own:saleDate>04/01/2026</own:saleDate>
      <own:amountOfSecuritiesSold>2000</own:amountOfSecuritiesSold>
      <own:grossProceeds>191087.24</own:grossProceeds>
    </own:securitiesSoldInPast3Months>
    <own:securitiesSoldInPast3Months>
      <own:sellerDetails>
        <own:name>Neil Hunt</own:name>
        <own:address>
          <com:street1>1173 Coleman Avenue</com:street1>
          <com:city>San Francisco</com:city>
          <com:stateOrCountry>CA</com:stateOrCountry>
          <com:zipCode>95110</com:zipCode>
        </own:address>
      </own:sellerDetails>
      <own:securitiesClassTitle>Common</own:securitiesClassTitle>
      <own:saleDate>03/02/2026</own:saleDate>
      <own:amountOfSecuritiesSold>2000</own:amountOfSecuritiesSold>
      <own:grossProceeds>195404.4</own:grossProceeds>
    </own:securitiesSoldInPast3Months>
    <own:securitiesSoldInPast3Months>
      <own:sellerDetails>
        <own:name>Neil Hunt</own:name>
        <own:address>
          <com:street1>1173 Coleman Avenue</com:street1>
          <com:city>San Francisco</com:city>
          <com:stateOrCountry>CA</com:stateOrCountry>
          <com:zipCode>95110</com:zipCode>
        </own:address>
      </own:sellerDetails>
      <own:securitiesClassTitle>Common</own:securitiesClassTitle>
      <own:saleDate>02/02/2026</own:saleDate>
      <own:amountOfSecuritiesSold>2000</own:amountOfSecuritiesSold>
      <own:grossProceeds>192962.65</own:grossProceeds>
    </own:securitiesSoldInPast3Months>
    <own:noticeSignature>
      <own:noticeDate>05/01/2026</own:noticeDate>
      <own:planAdoptionDates>
        <own:planAdoptionDate>08/05/2025</own:planAdoptionDate>
      </own:planAdoptionDates>
      <own:signature>Neil Hunt</own:signature>
    </own:noticeSignature>
  </own:formData>
</own:edgarSubmission>
