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>0001188972</cik>
            <ccc>XXXXXXXX</ccc>
          </filerCredentials>
        </filer>
        <liveTestFlag>LIVE</liveTestFlag>
  
  
  
      </filerInfo>
    </headerData>
    <formData>
      <issuerInfo>
        <issuerCik>0000913353</issuerCik>
        <issuerName>Colliers International Group, Inc.</issuerName>
        <secFileNumber>001-36898</secFileNumber>
        <issuerAddress>
          <com:street1>1140 Bay Street, Suite 4000</com:street1>
          <com:city>Toronto</com:city>
          <com:stateOrCountry>A6</com:stateOrCountry>
          <com:zipCode>M5S 2B4</com:zipCode>
        </issuerAddress>
        <issuerContactPhone>416-960-9500</issuerContactPhone>
        <nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>Lewis Frederick Sutherland</nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>
        <relationshipsToIssuer>
          <relationshipToIssuer>Board Member</relationshipToIssuer>
        </relationshipsToIssuer>
      </issuerInfo>
      <securitiesInformation>
        <securitiesClassTitle>Subordinate Voting Shares</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>12500</noOfUnitsSold>
        <aggregateMarketValue>1770125</aggregateMarketValue>
        <noOfUnitsOutstanding>49114657</noOfUnitsOutstanding>
        <approxSaleDate>11/20/2024</approxSaleDate>
        <securitiesExchangeName>NASDAQ</securitiesExchangeName>
      </securitiesInformation>
      <securitiesToBeSold>
        <securitiesClassTitle>Subordinate Voting Shares</securitiesClassTitle>
        <acquiredDate>02/14/2022</acquiredDate>
        <natureOfAcquisitionTransaction>Option Exercise</natureOfAcquisitionTransaction>
        <nameOfPersonfromWhomAcquired>Issuer</nameOfPersonfromWhomAcquired>
        <isGiftTransaction>N</isGiftTransaction>
        <amountOfSecuritiesAcquired>5000</amountOfSecuritiesAcquired>
        <paymentDate>02/14/2022</paymentDate>
        <natureOfPayment>Cash</natureOfPayment>
      </securitiesToBeSold>
      <securitiesToBeSold>
        <securitiesClassTitle>Subordinate Voting Shares</securitiesClassTitle>
        <acquiredDate>02/21/2023</acquiredDate>
        <natureOfAcquisitionTransaction>Option Exercise</natureOfAcquisitionTransaction>
        <nameOfPersonfromWhomAcquired>Issuer</nameOfPersonfromWhomAcquired>
        <isGiftTransaction>N</isGiftTransaction>
        <amountOfSecuritiesAcquired>7500</amountOfSecuritiesAcquired>
        <paymentDate>02/21/2023</paymentDate>
        <natureOfPayment>Cash</natureOfPayment>
      </securitiesToBeSold>
      <nothingToReportFlagOnSecuritiesSoldInPast3Months>Y</nothingToReportFlagOnSecuritiesSoldInPast3Months>
      <remarks>The shares covered by this filing will be sold by Lewis Frederick Sutherland &amp; Barbara Sutherland.</remarks>
      <noticeSignature>
        <noticeDate>11/20/2024</noticeDate>
        <signature>/s/ J.P. Morgan Securities LLC as agent and attorney-in-fact for Lewis Frederick Sutherland</signature>
      </noticeSignature>
    </formData>
  </edgarSubmission>
metadata_documents: [{"type": "144", "sequence": "1", "filename": "primary_doc.xml", "secsgml_size_bytes": 3558}]
text: 144
  0001188972
  XXXXXXXX
  LIVE
  0000913353
  Colliers International Group, Inc.
  001-36898
  1140 Bay Street, Suite 4000
  Toronto
  A6
  M5S 2B4
  416-960-9500
  Lewis Frederick Sutherland
  Board Member
  Subordinate Voting Shares
  J.P. Morgan Securities LLC
  390 Madison Avenue, 6th Floor
  New York
  NY
  10017
  12500
  1770125
  49114657
  11/20/2024
  NASDAQ
  Subordinate Voting Shares
  02/14/2022
  Option Exercise
  Issuer
  N
  5000
  02/14/2022
  Cash
  Subordinate Voting Shares
  02/21/2023
  Option Exercise
  Issuer
  N
  7500
  02/21/2023
  Cash
  Y
  The shares covered by this filing will be sold by Lewis Frederick Sutherland & Barbara Sutherland.
  11/20/2024
  /s/ J.P. Morgan Securities LLC as agent and attorney-in-fact for Lewis Frederick Sutherland