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    <filerInfo>
      <filer>
        <filerCredentials>
          <cik>0001707443</cik>
          <ccc>XXXXXXXX</ccc>
        </filerCredentials>
      </filer>
      <liveTestFlag>LIVE</liveTestFlag>



    </filerInfo>
  </headerData>
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    <issuerInfo>
      <issuerCik>0001145197</issuerCik>
      <issuerName>INSULET CORP</issuerName>
      <secFileNumber>001-33462</secFileNumber>
      <issuerAddress>
        <com:street1>100 NAGOG PARK</com:street1>
        <com:city>ACTON</com:city>
        <com:stateOrCountry>MA</com:stateOrCountry>
        <com:zipCode>01720</com:zipCode>
      </issuerAddress>
      <issuerContactPhone>978-600-7000</issuerContactPhone>
      <nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>Christensen Bret</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>SC</com:stateOrCountry>
          <com:zipCode>02917</com:zipCode>
        </address>
      </brokerOrMarketmakerDetails>
      <noOfUnitsSold>6008</noOfUnitsSold>
      <aggregateMarketValue>1838658.28</aggregateMarketValue>
      <noOfUnitsOutstanding>69695828</noOfUnitsOutstanding>
      <approxSaleDate>05/22/2023</approxSaleDate>
      <securitiesExchangeName>NASDAQ</securitiesExchangeName>
    </securitiesInformation>
    <securitiesToBeSold>
      <securitiesClassTitle>Common</securitiesClassTitle>
      <acquiredDate>02/10/2022</acquiredDate>
      <natureOfAcquisitionTransaction>Restricted Stock Vesting</natureOfAcquisitionTransaction>
      <nameOfPersonfromWhomAcquired>Issuer</nameOfPersonfromWhomAcquired>
      <isGiftTransaction>N</isGiftTransaction>
      <amountOfSecuritiesAcquired>418</amountOfSecuritiesAcquired>
      <paymentDate>02/10/2022</paymentDate>
      <natureOfPayment>Compensation</natureOfPayment>
    </securitiesToBeSold>
    <securitiesToBeSold>
      <securitiesClassTitle>Common</securitiesClassTitle>
      <acquiredDate>02/17/2022</acquiredDate>
      <natureOfAcquisitionTransaction>Restricted Stock Vesting</natureOfAcquisitionTransaction>
      <nameOfPersonfromWhomAcquired>Issuer</nameOfPersonfromWhomAcquired>
      <isGiftTransaction>N</isGiftTransaction>
      <amountOfSecuritiesAcquired>368</amountOfSecuritiesAcquired>
      <paymentDate>02/17/2022</paymentDate>
      <natureOfPayment>Compensation</natureOfPayment>
    </securitiesToBeSold>
    <securitiesToBeSold>
      <securitiesClassTitle>Common</securitiesClassTitle>
      <acquiredDate>02/18/2022</acquiredDate>
      <natureOfAcquisitionTransaction>Restricted Stock Vesting</natureOfAcquisitionTransaction>
      <nameOfPersonfromWhomAcquired>Issuer</nameOfPersonfromWhomAcquired>
      <isGiftTransaction>N</isGiftTransaction>
      <amountOfSecuritiesAcquired>4542</amountOfSecuritiesAcquired>
      <paymentDate>02/18/2022</paymentDate>
      <natureOfPayment>Compensation</natureOfPayment>
    </securitiesToBeSold>
    <securitiesToBeSold>
      <securitiesClassTitle>Common</securitiesClassTitle>
      <acquiredDate>02/26/2022</acquiredDate>
      <natureOfAcquisitionTransaction>Restricted Stock Vesting</natureOfAcquisitionTransaction>
      <nameOfPersonfromWhomAcquired>Issuer</nameOfPersonfromWhomAcquired>
      <isGiftTransaction>N</isGiftTransaction>
      <amountOfSecuritiesAcquired>680</amountOfSecuritiesAcquired>
      <paymentDate>02/26/2022</paymentDate>
      <natureOfPayment>Compensation</natureOfPayment>
    </securitiesToBeSold>
    <nothingToReportFlagOnSecuritiesSoldInPast3Months>N</nothingToReportFlagOnSecuritiesSoldInPast3Months>
    <securitiesSoldInPast3Months>
      <sellerDetails>
        <name>Bret Christensen</name>
        <address>
          <com:street1>100 Nagog Park</com:street1>
          <com:city>Acton</com:city>
          <com:stateOrCountry>MA</com:stateOrCountry>
          <com:zipCode>01720</com:zipCode>
        </address>
      </sellerDetails>
      <securitiesClassTitle>Common</securitiesClassTitle>
      <saleDate>05/10/2023</saleDate>
      <amountOfSecuritiesSold>45140</amountOfSecuritiesSold>
      <grossProceeds>14554927.67</grossProceeds>
    </securitiesSoldInPast3Months>
    <noticeSignature>
      <noticeDate>05/22/2023</noticeDate>
      <signature>/s/ Gary Redman, as a duly authorized representative of Fidelity Brokerage Services LLC, as attorney-in-fact for Bret Christensen</signature>
    </noticeSignature>
  </formData>
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144
0001707443
XXXXXXXX
LIVE
0001145197
INSULET CORP
001-33462
100 NAGOG PARK
ACTON
MA
01720
978-600-7000
Christensen Bret
Officer
Common
Fidelity Brokerage Services LLC
900 Salem Street
Smithfield
SC
02917
6008
1838658.28
69695828
05/22/2023
NASDAQ
Common
02/10/2022
Restricted Stock Vesting
Issuer
N
418
02/10/2022
Compensation
Common
02/17/2022
Restricted Stock Vesting
Issuer
N
368
02/17/2022
Compensation
Common
02/18/2022
Restricted Stock Vesting
Issuer
N
4542
02/18/2022
Compensation
Common
02/26/2022
Restricted Stock Vesting
Issuer
N
680
02/26/2022
Compensation
N
Bret Christensen
100 Nagog Park
Acton
MA
01720
Common
05/10/2023
45140
14554927.67
05/22/2023
/s/ Gary Redman, as a duly authorized representative of Fidelity Brokerage Services LLC, as attorney-in-fact for Bret Christensen