<?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>0001393571</cik>
          <ccc>XXXXXXXX</ccc>
        </filerCredentials>
      </filer>
      <liveTestFlag>LIVE</liveTestFlag>



    </filerInfo>
  </headerData>
  <formData>
    <issuerInfo>
      <issuerCik>0001428439</issuerCik>
      <issuerName>ROKU, Inc.</issuerName>
      <secFileNumber>001-38211</secFileNumber>
      <issuerAddress>
        <com:street1>1173 Coleman Avenue</com:street1>
        <com:city>San Jose</com:city>
        <com:stateOrCountry>CA</com:stateOrCountry>
        <com:zipCode>95110</com:zipCode>
      </issuerAddress>
      <issuerContactPhone>408-556-9040</issuerContactPhone>
      <nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>Neil Hunt</nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>
      <relationshipsToIssuer>
        <relationshipToIssuer>Director</relationshipToIssuer>
      </relationshipsToIssuer>
    </issuerInfo>
    <securitiesInformation>
      <securitiesClassTitle>Common</securitiesClassTitle>
      <brokerOrMarketmakerDetails>
        <name>Merrill Lynch</name>
        <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>
        </address>
      </brokerOrMarketmakerDetails>
      <noOfUnitsSold>2000</noOfUnitsSold>
      <aggregateMarketValue>191087.24</aggregateMarketValue>
      <noOfUnitsOutstanding>130717715</noOfUnitsOutstanding>
      <approxSaleDate>04/01/2026</approxSaleDate>
      <securitiesExchangeName>Nasdaq</securitiesExchangeName>
    </securitiesInformation>
    <securitiesToBeSold>
      <securitiesClassTitle>Common</securitiesClassTitle>
      <acquiredDate>04/01/2026</acquiredDate>
      <natureOfAcquisitionTransaction>Stock Option Exercise</natureOfAcquisitionTransaction>
      <nameOfPersonfromWhomAcquired>Issuer</nameOfPersonfromWhomAcquired>
      <isGiftTransaction>N</isGiftTransaction>
      <amountOfSecuritiesAcquired>2000</amountOfSecuritiesAcquired>
      <paymentDate>04/01/2026</paymentDate>
      <natureOfPayment>Cash</natureOfPayment>
    </securitiesToBeSold>
    <nothingToReportFlagOnSecuritiesSoldInPast3Months>N</nothingToReportFlagOnSecuritiesSoldInPast3Months>
    <securitiesSoldInPast3Months>
      <sellerDetails>
        <name>Neil Hunt</name>
        <address>
          <com:street1>1173 Coleman Avenue</com:street1>
          <com:city>San Jose</com:city>
          <com:stateOrCountry>CA</com:stateOrCountry>
          <com:zipCode>95110</com:zipCode>
        </address>
      </sellerDetails>
      <securitiesClassTitle>Common</securitiesClassTitle>
      <saleDate>03/02/2026</saleDate>
      <amountOfSecuritiesSold>2000</amountOfSecuritiesSold>
      <grossProceeds>195404.4</grossProceeds>
    </securitiesSoldInPast3Months>
    <securitiesSoldInPast3Months>
      <sellerDetails>
        <name>Neil Hunt</name>
        <address>
          <com:street1>1173 Coleman Avenue</com:street1>
          <com:city>San Jose</com:city>
          <com:stateOrCountry>CA</com:stateOrCountry>
          <com:zipCode>95110</com:zipCode>
        </address>
      </sellerDetails>
      <securitiesClassTitle>Common</securitiesClassTitle>
      <saleDate>02/02/2026</saleDate>
      <amountOfSecuritiesSold>2000</amountOfSecuritiesSold>
      <grossProceeds>192962.65</grossProceeds>
    </securitiesSoldInPast3Months>
    <securitiesSoldInPast3Months>
      <sellerDetails>
        <name>Neil Hunt</name>
        <address>
          <com:street1>1173 Coleman Avenue</com:street1>
          <com:city>San Jose</com:city>
          <com:stateOrCountry>CA</com:stateOrCountry>
          <com:zipCode>95110</com:zipCode>
        </address>
      </sellerDetails>
      <securitiesClassTitle>Common</securitiesClassTitle>
      <saleDate>01/02/2026</saleDate>
      <amountOfSecuritiesSold>2000</amountOfSecuritiesSold>
      <grossProceeds>217969.53</grossProceeds>
    </securitiesSoldInPast3Months>
    <noticeSignature>
      <noticeDate>04/01/2026</noticeDate>
      <planAdoptionDates>
        <planAdoptionDate>08/05/2025</planAdoptionDate>
      </planAdoptionDates>
      <signature>Neil Hunt</signature>
    </noticeSignature>
  </formData>
</edgarSubmission>
