content: <?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>0001211069</cik>
            <ccc>XXXXXXXX</ccc>
          </filerCredentials>
        </filer>
        <liveTestFlag>LIVE</liveTestFlag>
  
  
      </filerInfo>
    </headerData>
    <formData>
      <issuerInfo>
        <issuerCik>0000857005</issuerCik>
        <issuerName>PTC INC.</issuerName>
        <secFileNumber>000-18059</secFileNumber>
        <issuerAddress>
          <com:street1>121 SEAPORT BOULEVARD</com:street1>
          <com:city>BOSTON</com:city>
          <com:stateOrCountry>MA</com:stateOrCountry>
          <com:zipCode>02210</com:zipCode>
        </issuerAddress>
        <issuerContactPhone>7813705000</issuerContactPhone>
        <nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>SCHECHTER ROBERT</nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>
        <relationshipsToIssuer>
          <relationshipToIssuer>Director</relationshipToIssuer>
        </relationshipsToIssuer>
      </issuerInfo>
      <securitiesInformation>
        <securitiesClassTitle>Common Stock</securitiesClassTitle>
        <brokerOrMarketmakerDetails>
          <name>Fidelity Brokerage Services LLC</name>
          <address>
            <com:street1>245 Summer Street</com:street1>
            <com:city>Boston</com:city>
            <com:stateOrCountry>MA</com:stateOrCountry>
            <com:zipCode>02110</com:zipCode>
          </address>
        </brokerOrMarketmakerDetails>
        <noOfUnitsSold>625</noOfUnitsSold>
        <aggregateMarketValue>106368.75</aggregateMarketValue>
        <noOfUnitsOutstanding>120135231</noOfUnitsOutstanding>
        <approxSaleDate>08/13/2024</approxSaleDate>
        <securitiesExchangeName>NASDAQ</securitiesExchangeName>
      </securitiesInformation>
      <securitiesToBeSold>
        <securitiesClassTitle>Common Stock</securitiesClassTitle>
        <acquiredDate>12/18/2014</acquiredDate>
        <natureOfAcquisitionTransaction>Gift</natureOfAcquisitionTransaction>
        <nameOfPersonfromWhomAcquired>ROBERT SCHECHTER</nameOfPersonfromWhomAcquired>
        <isGiftTransaction>Y</isGiftTransaction>
        <donarAcquiredDate>03/05/2014</donarAcquiredDate>
        <amountOfSecuritiesAcquired>625</amountOfSecuritiesAcquired>
        <paymentDate>12/18/2014</paymentDate>
        <natureOfPayment>N/A</natureOfPayment>
      </securitiesToBeSold>
      <nothingToReportFlagOnSecuritiesSoldInPast3Months>N</nothingToReportFlagOnSecuritiesSoldInPast3Months>
      <securitiesSoldInPast3Months>
        <sellerDetails>
          <name>Robert P Schechter</name>
          <address>
            <com:street1>c/o PTC Inc.</com:street1>
            <com:street2>121 Seaport Boulevard</com:street2>
            <com:city>Boston</com:city>
            <com:stateOrCountry>MA</com:stateOrCountry>
            <com:zipCode>02210</com:zipCode>
          </address>
        </sellerDetails>
        <securitiesClassTitle>Common Stock</securitiesClassTitle>
        <saleDate>08/06/2024</saleDate>
        <amountOfSecuritiesSold>5000</amountOfSecuritiesSold>
        <grossProceeds>858657.54</grossProceeds>
      </securitiesSoldInPast3Months>
      <remarks>Shares are being sold by SCHECHTER FAMILY FOUNDATION, Robert Schechter - Trustee.</remarks>
      <noticeSignature>
        <noticeDate>08/13/2024</noticeDate>
        <signature>/s/ Myra King, as a duly authorized representative of Fidelity Brokerage Services LLC, as attorney-in-fact for Robert Schechter</signature>
      </noticeSignature>
    </formData>
  </edgarSubmission>
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text: 144
  0001211069
  XXXXXXXX
  LIVE
  0000857005
  PTC INC.
  000-18059
  121 SEAPORT BOULEVARD
  BOSTON
  MA
  02210
  7813705000
  SCHECHTER ROBERT
  Director
  Common Stock
  Fidelity Brokerage Services LLC
  245 Summer Street
  Boston
  MA
  02110
  625
  106368.75
  120135231
  08/13/2024
  NASDAQ
  Common Stock
  12/18/2014
  Gift
  ROBERT SCHECHTER
  Y
  03/05/2014
  625
  12/18/2014
  N/A
  N
  Robert P Schechter
  c/o PTC Inc.
  121 Seaport Boulevard
  Boston
  MA
  02210
  Common Stock
  08/06/2024
  5000
  858657.54
  Shares are being sold by SCHECHTER FAMILY FOUNDATION, Robert Schechter - Trustee.
  08/13/2024
  /s/ Myra King, as a duly authorized representative of Fidelity Brokerage Services LLC, as attorney-in-fact for Robert Schechter