content: <?xml version="1.0" encoding="UTF-8"?><edgarSubmission xmlns="http://www.sec.gov/edgar/ownership" xmlns:com="http://www.sec.gov/edgar/common">
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      <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>associated</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>30000</noOfUnitsSold>
        <aggregateMarketValue>4758150.00</aggregateMarketValue>
        <noOfUnitsOutstanding>120323542</noOfUnitsOutstanding>
        <approxSaleDate>03/17/2025</approxSaleDate>
        <securitiesExchangeName>NASDAQ</securitiesExchangeName>
      </securitiesInformation>
      <securitiesToBeSold>
        <securitiesClassTitle>Common</securitiesClassTitle>
        <acquiredDate>03/06/2013</acquiredDate>
        <natureOfAcquisitionTransaction>Grant from Company </natureOfAcquisitionTransaction>
        <nameOfPersonfromWhomAcquired>PTC Inc </nameOfPersonfromWhomAcquired>
        <isGiftTransaction>N</isGiftTransaction>
        <amountOfSecuritiesAcquired>4890</amountOfSecuritiesAcquired>
        <paymentDate>03/06/2013</paymentDate>
        <natureOfPayment>N/A</natureOfPayment>
      </securitiesToBeSold>
      <securitiesToBeSold>
        <securitiesClassTitle>Common</securitiesClassTitle>
        <acquiredDate>03/05/2014</acquiredDate>
        <natureOfAcquisitionTransaction>Grant from Company	</natureOfAcquisitionTransaction>
        <nameOfPersonfromWhomAcquired>PTC Inc	</nameOfPersonfromWhomAcquired>
        <isGiftTransaction>N</isGiftTransaction>
        <amountOfSecuritiesAcquired>987</amountOfSecuritiesAcquired>
        <paymentDate>03/05/2014</paymentDate>
        <natureOfPayment>N/A</natureOfPayment>
      </securitiesToBeSold>
      <securitiesToBeSold>
        <securitiesClassTitle>Common</securitiesClassTitle>
        <acquiredDate>03/04/2015</acquiredDate>
        <natureOfAcquisitionTransaction>Grant from Company	</natureOfAcquisitionTransaction>
        <nameOfPersonfromWhomAcquired>PTC Inc	</nameOfPersonfromWhomAcquired>
        <isGiftTransaction>N</isGiftTransaction>
        <amountOfSecuritiesAcquired>6028</amountOfSecuritiesAcquired>
        <paymentDate>03/04/2015</paymentDate>
        <natureOfPayment>N/A</natureOfPayment>
      </securitiesToBeSold>
      <securitiesToBeSold>
        <securitiesClassTitle>Common</securitiesClassTitle>
        <acquiredDate>03/02/2016</acquiredDate>
        <natureOfAcquisitionTransaction>Grant from Company	</natureOfAcquisitionTransaction>
        <nameOfPersonfromWhomAcquired>PTC Inc	</nameOfPersonfromWhomAcquired>
        <isGiftTransaction>N</isGiftTransaction>
        <amountOfSecuritiesAcquired>2016</amountOfSecuritiesAcquired>
        <paymentDate>03/02/2016</paymentDate>
        <natureOfPayment>N/A</natureOfPayment>
      </securitiesToBeSold>
      <securitiesToBeSold>
        <securitiesClassTitle>Common</securitiesClassTitle>
        <acquiredDate>03/01/2017</acquiredDate>
        <natureOfAcquisitionTransaction>Grant from Company	</natureOfAcquisitionTransaction>
        <nameOfPersonfromWhomAcquired>PTC Inc	</nameOfPersonfromWhomAcquired>
        <isGiftTransaction>N</isGiftTransaction>
        <amountOfSecuritiesAcquired>4339</amountOfSecuritiesAcquired>
        <paymentDate>03/01/2017</paymentDate>
        <natureOfPayment>N/A</natureOfPayment>
      </securitiesToBeSold>
      <securitiesToBeSold>
        <securitiesClassTitle>Common</securitiesClassTitle>
        <acquiredDate>03/08/2018</acquiredDate>
        <natureOfAcquisitionTransaction>Grant from Company	</natureOfAcquisitionTransaction>
        <nameOfPersonfromWhomAcquired>PTC Inc	</nameOfPersonfromWhomAcquired>
        <isGiftTransaction>N</isGiftTransaction>
        <amountOfSecuritiesAcquired>2381</amountOfSecuritiesAcquired>
        <paymentDate>03/08/2018</paymentDate>
        <natureOfPayment>N/A</natureOfPayment>
      </securitiesToBeSold>
      <securitiesToBeSold>
        <securitiesClassTitle>Common</securitiesClassTitle>
        <acquiredDate>10/03/2019</acquiredDate>
        <natureOfAcquisitionTransaction>Grant from Company	</natureOfAcquisitionTransaction>
        <nameOfPersonfromWhomAcquired>PTC Inc	</nameOfPersonfromWhomAcquired>
        <isGiftTransaction>N</isGiftTransaction>
        <amountOfSecuritiesAcquired>735</amountOfSecuritiesAcquired>
        <paymentDate>10/03/2019</paymentDate>
        <natureOfPayment>N/A</natureOfPayment>
      </securitiesToBeSold>
      <securitiesToBeSold>
        <securitiesClassTitle>Common	</securitiesClassTitle>
        <acquiredDate>02/12/2020</acquiredDate>
        <natureOfAcquisitionTransaction>Grant from Company	</natureOfAcquisitionTransaction>
        <nameOfPersonfromWhomAcquired>PTC Inc	</nameOfPersonfromWhomAcquired>
        <isGiftTransaction>N</isGiftTransaction>
        <amountOfSecuritiesAcquired>3334</amountOfSecuritiesAcquired>
        <paymentDate>02/12/2020</paymentDate>
        <natureOfPayment>N/A</natureOfPayment>
      </securitiesToBeSold>
      <securitiesToBeSold>
        <securitiesClassTitle>Common	</securitiesClassTitle>
        <acquiredDate>01/31/2022</acquiredDate>
        <natureOfAcquisitionTransaction>Grant from Company	</natureOfAcquisitionTransaction>
        <nameOfPersonfromWhomAcquired>PTC Inc	</nameOfPersonfromWhomAcquired>
        <isGiftTransaction>N</isGiftTransaction>
        <amountOfSecuritiesAcquired>2072</amountOfSecuritiesAcquired>
        <paymentDate>01/31/2022</paymentDate>
        <natureOfPayment>N/A</natureOfPayment>
      </securitiesToBeSold>
      <securitiesToBeSold>
        <securitiesClassTitle>Common</securitiesClassTitle>
        <acquiredDate>02/26/2023</acquiredDate>
        <natureOfAcquisitionTransaction>Grant from Company	</natureOfAcquisitionTransaction>
        <nameOfPersonfromWhomAcquired>PTC Inc	</nameOfPersonfromWhomAcquired>
        <isGiftTransaction>N</isGiftTransaction>
        <amountOfSecuritiesAcquired>936</amountOfSecuritiesAcquired>
        <paymentDate>02/26/2023</paymentDate>
        <natureOfPayment>N/A</natureOfPayment>
      </securitiesToBeSold>
      <securitiesToBeSold>
        <securitiesClassTitle>Common</securitiesClassTitle>
        <acquiredDate>02/14/2024</acquiredDate>
        <natureOfAcquisitionTransaction>Grant from Company	</natureOfAcquisitionTransaction>
        <nameOfPersonfromWhomAcquired>PTC Inc	</nameOfPersonfromWhomAcquired>
        <isGiftTransaction>N</isGiftTransaction>
        <amountOfSecuritiesAcquired>2282</amountOfSecuritiesAcquired>
        <paymentDate>02/14/2024</paymentDate>
        <natureOfPayment>N/A</natureOfPayment>
      </securitiesToBeSold>
      <nothingToReportFlagOnSecuritiesSoldInPast3Months>N</nothingToReportFlagOnSecuritiesSoldInPast3Months>
      <securitiesSoldInPast3Months>
        <sellerDetails>
          <name>Robert P Schechter</name>
          <address>
            <com:street1>121 seaport Blvd</com:street1>
            <com:city>Boston</com:city>
            <com:stateOrCountry>MA</com:stateOrCountry>
            <com:zipCode>02210</com:zipCode>
          </address>
        </sellerDetails>
        <securitiesClassTitle>Common</securitiesClassTitle>
        <saleDate>02/25/2025</saleDate>
        <amountOfSecuritiesSold>4069</amountOfSecuritiesSold>
        <grossProceeds>663248.00</grossProceeds>
      </securitiesSoldInPast3Months>
      <remarks>options hedged position executed 3/17/2025</remarks>
      <noticeSignature>
        <noticeDate>03/17/2025</noticeDate>
        <signature>/s/ Audrey Skillern as a duly authorized representative of Fidelity Brokerage Services LLC, as attorney-in-fact for ROBERT SCHECHTER </signature>
      </noticeSignature>
    </formData>
  </edgarSubmission>
metadata_documents: [{"type": "144", "sequence": "1", "filename": "primary_doc.xml", "secsgml_size_bytes": 8728}]
text: 144
  0001211069
  XXXXXXXX
  LIVE
  0000857005
  PTC INC.
  000-18059
  121 SEAPORT BOULEVARD
  BOSTON
  MA
  02210
  7813705000
  SCHECHTER ROBERT
  associated
  Common Stock
  Fidelity Brokerage Services LLC
  245 Summer Street
  Boston
  MA
  02110
  30000
  4758150.00
  120323542
  03/17/2025
  NASDAQ
  Common
  03/06/2013
  Grant from Company
  PTC Inc
  N
  4890
  03/06/2013
  N/A
  Common
  03/05/2014
  Grant from Company
  PTC Inc
  N
  987
  03/05/2014
  N/A
  Common
  03/04/2015
  Grant from Company
  PTC Inc
  N
  6028
  03/04/2015
  N/A
  Common
  03/02/2016
  Grant from Company
  PTC Inc
  N
  2016
  03/02/2016
  N/A
  Common
  03/01/2017
  Grant from Company
  PTC Inc
  N
  4339
  03/01/2017
  N/A
  Common
  03/08/2018
  Grant from Company
  PTC Inc
  N
  2381
  03/08/2018
  N/A
  Common
  10/03/2019
  Grant from Company
  PTC Inc
  N
  735
  10/03/2019
  N/A
  Common
  02/12/2020
  Grant from Company
  PTC Inc
  N
  3334
  02/12/2020
  N/A
  Common
  01/31/2022
  Grant from Company
  PTC Inc
  N
  2072
  01/31/2022
  N/A
  Common
  02/26/2023
  Grant from Company
  PTC Inc
  N
  936
  02/26/2023
  N/A
  Common
  02/14/2024
  Grant from Company
  PTC Inc
  N
  2282
  02/14/2024
  N/A
  N
  Robert P Schechter
  121 seaport Blvd
  Boston
  MA
  02210
  Common
  02/25/2025
  4069
  663248.00
  options hedged position executed 3/17/2025
  03/17/2025
  /s/ Audrey Skillern as a duly authorized representative of Fidelity Brokerage Services LLC, as attorney-in-fact for ROBERT SCHECHTER