content: <?xml version="1.0" encoding="UTF-8"?><edgarSubmission xmlns="http://www.sec.gov/edgar/ownership" xmlns:com="http://www.sec.gov/edgar/common">
    <!-- Generated by Workiva -->
    <headerData>
      <submissionType>144</submissionType>
      <filerInfo>
        <filer>
          <filerCredentials>
            <cik>0001456473</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>Jeffrey P. Foster</nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>
        <relationshipsToIssuer>
          <relationshipToIssuer>Officer</relationshipToIssuer>
        </relationshipsToIssuer>
      </issuerInfo>
      <securitiesInformation>
        <securitiesClassTitle>Common Stock</securitiesClassTitle>
        <brokerOrMarketmakerDetails>
          <name>J.P. Morgan Securities LLC</name>
          <address>
            <com:street1>390 Madison Avenue, 6th Floor</com:street1>
            <com:city>New York</com:city>
            <com:stateOrCountry>NY</com:stateOrCountry>
            <com:zipCode>10017</com:zipCode>
          </address>
        </brokerOrMarketmakerDetails>
        <noOfUnitsSold>18616</noOfUnitsSold>
        <aggregateMarketValue>792483</aggregateMarketValue>
        <noOfUnitsOutstanding>227954012</noOfUnitsOutstanding>
        <approxSaleDate>05/05/2025</approxSaleDate>
        <securitiesExchangeName>NYSE</securitiesExchangeName>
      </securitiesInformation>
      <securitiesToBeSold>
        <securitiesClassTitle>Common Stock</securitiesClassTitle>
        <acquiredDate>05/05/2025</acquiredDate>
        <natureOfAcquisitionTransaction>Stock Option Exercise</natureOfAcquisitionTransaction>
        <nameOfPersonfromWhomAcquired>Issuer</nameOfPersonfromWhomAcquired>
        <isGiftTransaction>N</isGiftTransaction>
        <amountOfSecuritiesAcquired>18616</amountOfSecuritiesAcquired>
        <paymentDate>05/05/2025</paymentDate>
        <natureOfPayment>Cash</natureOfPayment>
      </securitiesToBeSold>
      <nothingToReportFlagOnSecuritiesSoldInPast3Months>Y</nothingToReportFlagOnSecuritiesSoldInPast3Months>
      <remarks>The shares covered by this filing are stock options that were exercised today.</remarks>
      <noticeSignature>
        <noticeDate>05/05/2025</noticeDate>
        <signature>/s/ J.P. Morgan Securities LLC as agent and attorney-in-fact for Jeffrey P. Foster</signature>
      </noticeSignature>
    </formData>
  </edgarSubmission>
metadata_documents: [{"type": "144", "sequence": "1", "filename": "primary_doc.xml", "secsgml_size_bytes": 2916}]
text: 144
  0001456473
  XXXXXXXX
  LIVE
  0001298675
  CubeSmart
  001-32324
  5 Old Lancaster Road
  Malvern
  PA
  19355
  610-535-5000
  Jeffrey P. Foster
  Officer
  Common Stock
  J.P. Morgan Securities LLC
  390 Madison Avenue, 6th Floor
  New York
  NY
  10017
  18616
  792483
  227954012
  05/05/2025
  NYSE
  Common Stock
  05/05/2025
  Stock Option Exercise
  Issuer
  N
  18616
  05/05/2025
  Cash
  Y
  The shares covered by this filing are stock options that were exercised today.
  05/05/2025
  /s/ J.P. Morgan Securities LLC as agent and attorney-in-fact for Jeffrey P. Foster