<?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>0001938940</cik>
          <ccc>XXXXXXXX</ccc>
        </filerCredentials>
      </filer>
      <liveTestFlag>LIVE</liveTestFlag>


    </filerInfo>
  </headerData>
  <formData>
    <issuerInfo>
      <issuerCik>0001776909</issuerCik>
      <issuerName>CuriosityStream Inc.</issuerName>
      <secFileNumber>001-39139</secFileNumber>
      <issuerAddress>
        <com:street1>8484 GEORGIA AVE.</com:street1>
        <com:street2>SUITE 700</com:street2>
        <com:city>SILVER SPRING</com:city>
        <com:stateOrCountry>MD</com:stateOrCountry>
        <com:zipCode>20910</com:zipCode>
      </issuerAddress>
      <issuerContactPhone>301-755-2050</issuerContactPhone>
      <nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>Hayden Phillip Brady</nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>
      <relationshipsToIssuer>
        <relationshipToIssuer>Former Officer</relationshipToIssuer>
      </relationshipsToIssuer>
    </issuerInfo>
    <securitiesInformation>
      <securitiesClassTitle>Common</securitiesClassTitle>
      <brokerOrMarketmakerDetails>
        <name>tastytrade, Inc.</name>
        <address>
          <com:street1>1330 W. Fulton St.</com:street1>
          <com:street2>Suite 600</com:street2>
          <com:city>Chigaco</com:city>
          <com:stateOrCountry>IL</com:stateOrCountry>
          <com:zipCode>60607</com:zipCode>
        </address>
      </brokerOrMarketmakerDetails>
      <noOfUnitsSold>25000</noOfUnitsSold>
      <aggregateMarketValue>73000.00</aggregateMarketValue>
      <noOfUnitsOutstanding>59338028</noOfUnitsOutstanding>
      <approxSaleDate>09/03/2026</approxSaleDate>
      <securitiesExchangeName>NASDAQ</securitiesExchangeName>
    </securitiesInformation>
    <securitiesToBeSold>
      <securitiesClassTitle>Common</securitiesClassTitle>
      <acquiredDate>05/15/2024</acquiredDate>
      <natureOfAcquisitionTransaction>Purchase</natureOfAcquisitionTransaction>
      <nameOfPersonfromWhomAcquired>Open Market</nameOfPersonfromWhomAcquired>
      <isGiftTransaction>N</isGiftTransaction>
      <amountOfSecuritiesAcquired>5000</amountOfSecuritiesAcquired>
      <paymentDate>05/15/2024</paymentDate>
      <natureOfPayment>Cash</natureOfPayment>
    </securitiesToBeSold>
    <securitiesToBeSold>
      <securitiesClassTitle>Common</securitiesClassTitle>
      <acquiredDate>05/17/2024</acquiredDate>
      <natureOfAcquisitionTransaction>Purchase</natureOfAcquisitionTransaction>
      <nameOfPersonfromWhomAcquired>Open Market</nameOfPersonfromWhomAcquired>
      <isGiftTransaction>N</isGiftTransaction>
      <amountOfSecuritiesAcquired>5000</amountOfSecuritiesAcquired>
      <paymentDate>05/17/2024</paymentDate>
      <natureOfPayment>Cash</natureOfPayment>
    </securitiesToBeSold>
    <securitiesToBeSold>
      <securitiesClassTitle>Common</securitiesClassTitle>
      <acquiredDate>05/24/2024</acquiredDate>
      <natureOfAcquisitionTransaction>Purchase</natureOfAcquisitionTransaction>
      <nameOfPersonfromWhomAcquired>Open Market</nameOfPersonfromWhomAcquired>
      <isGiftTransaction>N</isGiftTransaction>
      <amountOfSecuritiesAcquired>5000</amountOfSecuritiesAcquired>
      <paymentDate>05/24/2024</paymentDate>
      <natureOfPayment>Cash</natureOfPayment>
    </securitiesToBeSold>
    <securitiesToBeSold>
      <securitiesClassTitle>Common</securitiesClassTitle>
      <acquiredDate>05/30/2024</acquiredDate>
      <natureOfAcquisitionTransaction>Purchase</natureOfAcquisitionTransaction>
      <nameOfPersonfromWhomAcquired>Open Market</nameOfPersonfromWhomAcquired>
      <isGiftTransaction>N</isGiftTransaction>
      <amountOfSecuritiesAcquired>1000</amountOfSecuritiesAcquired>
      <paymentDate>05/30/2024</paymentDate>
      <natureOfPayment>Cash</natureOfPayment>
    </securitiesToBeSold>
    <securitiesToBeSold>
      <securitiesClassTitle>Common</securitiesClassTitle>
      <acquiredDate>05/13/2024</acquiredDate>
      <natureOfAcquisitionTransaction>Purchase</natureOfAcquisitionTransaction>
      <nameOfPersonfromWhomAcquired>Open Market</nameOfPersonfromWhomAcquired>
      <isGiftTransaction>N</isGiftTransaction>
      <amountOfSecuritiesAcquired>6000</amountOfSecuritiesAcquired>
      <paymentDate>05/31/2024</paymentDate>
      <natureOfPayment>Cash</natureOfPayment>
    </securitiesToBeSold>
    <securitiesToBeSold>
      <securitiesClassTitle>Common</securitiesClassTitle>
      <acquiredDate>06/03/2024</acquiredDate>
      <natureOfAcquisitionTransaction>Purchase</natureOfAcquisitionTransaction>
      <nameOfPersonfromWhomAcquired>Open Market</nameOfPersonfromWhomAcquired>
      <isGiftTransaction>N</isGiftTransaction>
      <amountOfSecuritiesAcquired>2000</amountOfSecuritiesAcquired>
      <paymentDate>06/03/2024</paymentDate>
      <natureOfPayment>Cash</natureOfPayment>
    </securitiesToBeSold>
    <securitiesToBeSold>
      <securitiesClassTitle>Common</securitiesClassTitle>
      <acquiredDate>12/16/2024</acquiredDate>
      <natureOfAcquisitionTransaction>Purchase</natureOfAcquisitionTransaction>
      <nameOfPersonfromWhomAcquired>Open Market</nameOfPersonfromWhomAcquired>
      <isGiftTransaction>N</isGiftTransaction>
      <amountOfSecuritiesAcquired>1000</amountOfSecuritiesAcquired>
      <paymentDate>12/16/2024</paymentDate>
      <natureOfPayment>Cash</natureOfPayment>
    </securitiesToBeSold>
    <nothingToReportFlagOnSecuritiesSoldInPast3Months>N</nothingToReportFlagOnSecuritiesSoldInPast3Months>
    <securitiesSoldInPast3Months>
      <sellerDetails>
        <name>P. Brady Hayden Revocable Trust</name>
        <address>
          <com:street1>8484 Georgia Ave</com:street1>
          <com:street2>Suite 700</com:street2>
          <com:city>Silver Spring</com:city>
          <com:stateOrCountry>MD</com:stateOrCountry>
          <com:zipCode>20910</com:zipCode>
        </address>
      </sellerDetails>
      <securitiesClassTitle>Common</securitiesClassTitle>
      <saleDate>06/12/2026</saleDate>
      <amountOfSecuritiesSold>30400</amountOfSecuritiesSold>
      <grossProceeds>77888.40</grossProceeds>
    </securitiesSoldInPast3Months>
    <securitiesSoldInPast3Months>
      <sellerDetails>
        <name>P. Brady Hayden Revocable Trust</name>
        <address>
          <com:street1>8484 Georgia Ave</com:street1>
          <com:street2>Suite 700</com:street2>
          <com:city>Silver Spring</com:city>
          <com:stateOrCountry>MD</com:stateOrCountry>
          <com:zipCode>20910</com:zipCode>
        </address>
      </sellerDetails>
      <securitiesClassTitle>Common</securitiesClassTitle>
      <saleDate>09/03/2026</saleDate>
      <amountOfSecuritiesSold>80931</amountOfSecuritiesSold>
      <grossProceeds>25953.67</grossProceeds>
    </securitiesSoldInPast3Months>
    <remarks>This Notice of Proposed Sale of Securities for 25,000 common shares is on behalf of Plan Z, LLC, of which Phillip B. Hayden is managing member and an account stakeholder.</remarks>
    <noticeSignature>
      <noticeDate>09/03/2026</noticeDate>
      <signature>P. Brady Hayden</signature>
    </noticeSignature>
  </formData>
</edgarSubmission>
