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  <headerData>
    <submissionType>144</submissionType>
    <filerInfo>
      <filer>
        <filerCredentials>
          <cik>0001791610</cik>
          <ccc>XXXXXXXX</ccc>
        </filerCredentials>
      </filer>
      <liveTestFlag>LIVE</liveTestFlag>



    </filerInfo>
  </headerData>
  <formData>
    <issuerInfo>
      <issuerCik>0001298675</issuerCik>
      <issuerName>CubeSmart</issuerName>
      <secFileNumber>001-32324</secFileNumber>
      <issuerAddress>
        <com:street1>5 OLD LANCASTER ROAD</com:street1>
        <com:city>MALVERN</com:city>
        <com:stateOrCountry>PA</com:stateOrCountry>
        <com:zipCode>19355</com:zipCode>
      </issuerAddress>
      <issuerContactPhone>610-535-5000</issuerContactPhone>
      <nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>Keaton Joel D</nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>
      <relationshipsToIssuer>
        <relationshipToIssuer>Former Affiliate/Officer</relationshipToIssuer>
      </relationshipsToIssuer>
    </issuerInfo>
    <securitiesInformation>
      <securitiesClassTitle>Common Shares</securitiesClassTitle>
      <brokerOrMarketmakerDetails>
        <name>Charles Schwab &amp; Co.</name>
        <address>
          <com:street1>3000 Schwab Way</com:street1>
          <com:city>Westlake</com:city>
          <com:stateOrCountry>TX</com:stateOrCountry>
          <com:zipCode>76262</com:zipCode>
        </address>
      </brokerOrMarketmakerDetails>
      <noOfUnitsSold>27426</noOfUnitsSold>
      <aggregateMarketValue>1177398.18</aggregateMarketValue>
      <noOfUnitsOutstanding>227954012</noOfUnitsOutstanding>
      <approxSaleDate>06/05/2025</approxSaleDate>
      <securitiesExchangeName>NYSE</securitiesExchangeName>
    </securitiesInformation>
    <securitiesToBeSold>
      <securitiesClassTitle>Common Shares</securitiesClassTitle>
      <acquiredDate>06/05/2025</acquiredDate>
      <natureOfAcquisitionTransaction>Stock Option Exercise</natureOfAcquisitionTransaction>
      <nameOfPersonfromWhomAcquired>Issuer</nameOfPersonfromWhomAcquired>
      <isGiftTransaction>N</isGiftTransaction>
      <amountOfSecuritiesAcquired>27426</amountOfSecuritiesAcquired>
      <paymentDate>06/05/2025</paymentDate>
      <natureOfPayment>Broker Check</natureOfPayment>
    </securitiesToBeSold>
    <nothingToReportFlagOnSecuritiesSoldInPast3Months>Y</nothingToReportFlagOnSecuritiesSoldInPast3Months>
    <noticeSignature>
      <noticeDate>06/05/2025</noticeDate>
      <signature>Joel Keaton</signature>
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144
0001791610
XXXXXXXX
LIVE
0001298675
CubeSmart
001-32324
5 OLD LANCASTER ROAD
MALVERN
PA
19355
610-535-5000
Keaton Joel D
Former Affiliate/Officer
Common Shares
Charles Schwab & Co.
3000 Schwab Way
Westlake
TX
76262
27426
1177398.18
227954012
06/05/2025
NYSE
Common Shares
06/05/2025
Stock Option Exercise
Issuer
N
27426
06/05/2025
Broker Check
Y
06/05/2025
Joel Keaton