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      <secFileNumber>001-39322</secFileNumber>
      <issuerAddress>
        <com:street1>1330 W FULTON STREET, #350</com:street1>
        <com:city>CHICAGO</com:city>
        <com:stateOrCountry>IL</com:stateOrCountry>
        <com:zipCode>60607</com:zipCode>
      </issuerAddress>
      <issuerContactPhone>877-275-2935</issuerContactPhone>
      <nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>Skelly Jonathan</nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>
      <relationshipsToIssuer>
        <relationshipToIssuer>Officer</relationshipToIssuer>
      </relationshipsToIssuer>
    </issuerInfo>
    <securitiesInformation>
      <securitiesClassTitle>Common</securitiesClassTitle>
      <brokerOrMarketmakerDetails>
        <name>Fidelity Brokerage Services LLC</name>
        <address>
          <com:street1>900 Salem Street</com:street1>
          <com:city>Smithfield</com:city>
          <com:stateOrCountry>RI</com:stateOrCountry>
          <com:zipCode>02917</com:zipCode>
        </address>
      </brokerOrMarketmakerDetails>
      <noOfUnitsSold>20000</noOfUnitsSold>
      <aggregateMarketValue>476537.96</aggregateMarketValue>
      <noOfUnitsOutstanding>150731275</noOfUnitsOutstanding>
      <approxSaleDate>03/09/2023</approxSaleDate>
      <securitiesExchangeName>NYSE</securitiesExchangeName>
    </securitiesInformation>
    <securitiesToBeSold>
      <securitiesClassTitle>Common</securitiesClassTitle>
      <acquiredDate>08/07/2019</acquiredDate>
      <natureOfAcquisitionTransaction>Restricted Stock Vesting</natureOfAcquisitionTransaction>
      <nameOfPersonfromWhomAcquired>Issuer</nameOfPersonfromWhomAcquired>
      <isGiftTransaction>N</isGiftTransaction>
      <amountOfSecuritiesAcquired>19356</amountOfSecuritiesAcquired>
      <paymentDate>08/07/2019</paymentDate>
      <natureOfPayment>Compensation</natureOfPayment>
    </securitiesToBeSold>
    <securitiesToBeSold>
      <securitiesClassTitle>Common</securitiesClassTitle>
      <acquiredDate>12/04/2021</acquiredDate>
      <natureOfAcquisitionTransaction>Restricted Stock Vesting</natureOfAcquisitionTransaction>
      <nameOfPersonfromWhomAcquired>Issuer</nameOfPersonfromWhomAcquired>
      <isGiftTransaction>N</isGiftTransaction>
      <amountOfSecuritiesAcquired>644</amountOfSecuritiesAcquired>
      <paymentDate>12/04/2021</paymentDate>
      <natureOfPayment>Compensation</natureOfPayment>
    </securitiesToBeSold>
    <nothingToReportFlagOnSecuritiesSoldInPast3Months>Y</nothingToReportFlagOnSecuritiesSoldInPast3Months>
    <noticeSignature>
      <noticeDate>03/09/2023</noticeDate>
      <signature>/s/Wade Moss, as a duly authorized representative of Fidelity Brokerage Services LLC, as attorney-in-fact for Jonathan Skelly</signature>
    </noticeSignature>
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144
0001814380
XXXXXXXX
LIVE
0001782754
AZEK Co Inc.
001-39322
1330 W FULTON STREET, #350
CHICAGO
IL
60607
877-275-2935
Skelly Jonathan
Officer
Common
Fidelity Brokerage Services LLC
900 Salem Street
Smithfield
RI
02917
20000
476537.96
150731275
03/09/2023
NYSE
Common
08/07/2019
Restricted Stock Vesting
Issuer
N
19356
08/07/2019
Compensation
Common
12/04/2021
Restricted Stock Vesting
Issuer
N
644
12/04/2021
Compensation
Y
03/09/2023
/s/Wade Moss, as a duly authorized representative of Fidelity Brokerage Services LLC, as attorney-in-fact for Jonathan Skelly