<?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>0002015998</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>0001655759</own:issuerCik>
      <own:issuerName>Arvinas Inc</own:issuerName>
      <own:secFileNumber>001-38672</own:secFileNumber>
      <own:issuerAddress>
        <com:street1>395 Winchester Ave</com:street1>
        <com:street2>5 Science Park</com:street2>
        <com:city>New Haven</com:city>
        <com:stateOrCountry>CT</com:stateOrCountry>
        <com:zipCode>06511</com:zipCode>
      </own:issuerAddress>
      <own:issuerContactPhone>475-345-3828</own:issuerContactPhone>
      <own:nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>Randy Teel</own:nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>
      <own:relationshipsToIssuer>
        <own:relationshipToIssuer>Officer</own:relationshipToIssuer>
        <own:relationshipToIssuer>Director</own:relationshipToIssuer>
      </own:relationshipsToIssuer>
    </own:issuerInfo>
    <own:securitiesInformation>
      <own:securitiesClassTitle>Common</own:securitiesClassTitle>
      <own:brokerOrMarketmakerDetails>
        <own:name>Morgan Stanley Smith Barney LLC</own:name>
        <own:address>
          <com:street1>1 New York Plaza</com:street1>
          <com:city>New York</com:city>
          <com:stateOrCountry>NY</com:stateOrCountry>
          <com:zipCode>100004</com:zipCode>
        </own:address>
      </own:brokerOrMarketmakerDetails>
      <own:noOfUnitsSold>9834</own:noOfUnitsSold>
      <own:aggregateMarketValue>99421.74</own:aggregateMarketValue>
      <own:noOfUnitsOutstanding>64517472</own:noOfUnitsOutstanding>
      <own:approxSaleDate>05/11/2026</own:approxSaleDate>
      <own:securitiesExchangeName>NASDAQ</own:securitiesExchangeName>
    </own:securitiesInformation>
    <own:securitiesToBeSold>
      <own:securitiesClassTitle>Common</own:securitiesClassTitle>
      <own:acquiredDate>05/11/2026</own:acquiredDate>
      <own:natureOfAcquisitionTransaction>Settlement of vested restricted stock units</own:natureOfAcquisitionTransaction>
      <own:nameOfPersonfromWhomAcquired>Arvinas, Inc</own:nameOfPersonfromWhomAcquired>
      <own:isGiftTransaction>N</own:isGiftTransaction>
      <own:amountOfSecuritiesAcquired>9834</own:amountOfSecuritiesAcquired>
      <own:paymentDate>05/11/2026</own:paymentDate>
      <own:natureOfPayment>Not applicable</own:natureOfPayment>
    </own:securitiesToBeSold>
    <own:nothingToReportFlagOnSecuritiesSoldInPast3Months>N</own:nothingToReportFlagOnSecuritiesSoldInPast3Months>
    <own:securitiesSoldInPast3Months>
      <own:sellerDetails>
        <own:name>Randy Teel</own:name>
        <own:address>
          <com:street1>396 Winchester Ave.</com:street1>
          <com:street2>5 Science Park</com:street2>
          <com:city>New Haven</com:city>
          <com:stateOrCountry>CT</com:stateOrCountry>
          <com:zipCode>06511</com:zipCode>
        </own:address>
      </own:sellerDetails>
      <own:securitiesClassTitle>Common</own:securitiesClassTitle>
      <own:saleDate>02/13/2026</own:saleDate>
      <own:amountOfSecuritiesSold>4403</own:amountOfSecuritiesSold>
      <own:grossProceeds>52359.96</own:grossProceeds>
    </own:securitiesSoldInPast3Months>
    <own:securitiesSoldInPast3Months>
      <own:sellerDetails>
        <own:name>Randy Teel</own:name>
        <own:address>
          <com:street1>396 Winchester Ave.</com:street1>
          <com:street2>5 Science Park</com:street2>
          <com:city>New Haven</com:city>
          <com:stateOrCountry>CT</com:stateOrCountry>
          <com:zipCode>06511</com:zipCode>
        </own:address>
      </own:sellerDetails>
      <own:securitiesClassTitle>Common</own:securitiesClassTitle>
      <own:saleDate>02/23/2026</own:saleDate>
      <own:amountOfSecuritiesSold>4786</own:amountOfSecuritiesSold>
      <own:grossProceeds>58197.76</own:grossProceeds>
    </own:securitiesSoldInPast3Months>
    <own:remarks>The proposed sale reported on this Form 144 will be made automatically to cover withholding taxes following the vesting of previously granted restricted stock units. The number of shares to be sold and aggregate market value included in this Form 144 are based on the closing price of Arvinas common stock on May 8, 2026. The sale does not represent a discretionary trade.</own:remarks>
    <own:noticeSignature>
      <own:noticeDate>05/08/2026</own:noticeDate>
      <own:signature>/s/ Jared Freedberg, as attorney-in-fact for Randy Teel</own:signature>
    </own:noticeSignature>
  </own:formData>
</own:edgarSubmission>
