<?xml version="1.0" encoding="UTF-8"?>
<edgarSubmission xmlns="http://www.sec.gov/edgar/mafiler" xmlns:com="http://www.sec.gov/edgar/common_ma" xmlns:com1="http://www.sec.gov/edgar/common" xmlns:ma="http://www.sec.gov/edgar/ma_drp" xmlns:ma1="http://www.sec.gov/edgar/ma_common_drp">
  <headerData>
    <submissionType>MA/A</submissionType>
    <filerInfo>
      <com:filer>
        <com1:filerId>0000712807</com1:filerId>
        <com1:filerCcc>XXXXXXXX</com1:filerCcc>
      </com:filer>
      <com:contact>
        <com1:name>Laura Lewandowski</com1:name>
        <com1:phoneNumber>312-595-6238</com1:phoneNumber>
      </com:contact>
      <com:contactEmail>laura.lewandowski@mesirow.com</com:contactEmail>
      <com:notifications>
        <com1:internetNotificationAddress>maryjo.hayes@mesirow.com</com1:internetNotificationAddress>
        <com1:internetNotificationAddress>jamie.shields@mesirow.com</com1:internetNotificationAddress>
        <com1:internetNotificationAddress>alexis.dalton@mesirow.com</com1:internetNotificationAddress>
        <com1:internetNotificationAddress>maria.kaufman@mesirow.com</com1:internetNotificationAddress>
      </com:notifications>
    </filerInfo>
  </headerData>
  <formData>
    <firmName>MESIROW FINANCIAL, INC.</firmName>
    <firmCrdNumber>2764</firmCrdNumber>
    <irsNum>36-3194849</irsNum>
    <registrations>
      <maTregistration>
        <com:fileNumber>866-00253-00</com:fileNumber>
      </maTregistration>
      <baseRegistrations>
        <maRegistration>
          <com:fileNumber>867-01042</com:fileNumber>
        </maRegistration>
        <baseRegistrations>
          <com:bdRegistration>
            <com:fileNumber>008-28816</com:fileNumber>
            <com:crdNumber>2764</com:crdNumber>
          </com:bdRegistration>
        </baseRegistrations>
      </baseRegistrations>
    </registrations>
    <principalOfficeAddress>
      <addressInfo>
        <com:address>
          <com1:street1>353 N. Clark Street</com1:street1>
          <com1:city>Chicago</com1:city>
          <com1:stateOrCountry>IL</com1:stateOrCountry>
          <com1:zipCode>60654</com1:zipCode>
        </com:address>
      </addressInfo>
      <phoneNumber>312-595-6000</phoneNumber>
      <faxNumber>312-595-7208</faxNumber>
    </principalOfficeAddress>
    <additionalOffices>
      <additionalOffice>
        <addDeleteAmend>
          <com:add>Add</com:add>
        </addDeleteAmend>
        <officeInfo>
          <addressInfo>
            <com:address>
              <com1:street1>140 E. 45th Street</com1:street1>
              <com1:street2>30th Floor</com1:street2>
              <com1:city>New York</com1:city>
              <com1:stateOrCountry>NY</com1:stateOrCountry>
              <com1:zipCode>10017</com1:zipCode>
            </com:address>
          </addressInfo>
          <phoneNumber>2124253200</phoneNumber>
          <faxNumber>2124255617</faxNumber>
        </officeInfo>
      </additionalOffice>
      <additionalOffice>
        <addDeleteAmend>
          <com:add>Add</com:add>
        </addDeleteAmend>
        <officeInfo>
          <addressInfo>
            <com:address>
              <com1:street1>46 Prospect Street</com1:street1>
              <com1:city>Hartford</com1:city>
              <com1:stateOrCountry>CT</com1:stateOrCountry>
              <com1:zipCode>06103</com1:zipCode>
            </com:address>
          </addressInfo>
          <phoneNumber>8004530600</phoneNumber>
        </officeInfo>
      </additionalOffice>
      <additionalOffice>
        <addDeleteAmend>
          <com:add>Add</com:add>
        </addDeleteAmend>
        <officeInfo>
          <addressInfo>
            <com:address>
              <com1:street1>125 West Street</com1:street1>
              <com1:street2>Suite 200</com1:street2>
              <com1:city>Annapolis</com1:city>
              <com1:stateOrCountry>MD</com1:stateOrCountry>
              <com1:zipCode>21401</com1:zipCode>
            </com:address>
          </addressInfo>
          <phoneNumber>8004530600</phoneNumber>
        </officeInfo>
      </additionalOffice>
      <additionalOffice>
        <addDeleteAmend>
          <com:add>Add</com:add>
        </addDeleteAmend>
        <officeInfo>
          <phoneNumber>8004530600</phoneNumber>
        </officeInfo>
      </additionalOffice>
      <additionalOffice>
        <addDeleteAmend>
          <com:add>Add</com:add>
        </addDeleteAmend>
        <officeInfo>
          <phoneNumber>7133339375</phoneNumber>
        </officeInfo>
      </additionalOffice>
    </additionalOffices>
    <mailingAddressDifferent>N</mailingAddressDifferent>
    <primaryWebAddress>https://www.mesirowfinancial.com</primaryWebAddress>
    <additionalWebAddresses>
      <additionalWebAddress>
        <addDeleteAmend>
          <com:add>Add</com:add>
        </addDeleteAmend>
        <webAddress>https://www.mesirow.com</webAddress>
      </additionalWebAddress>
    </additionalWebAddresses>
    <cco>
      <name>
        <com:firstName>JAMES</com:firstName>
        <com:middleName>PHILIP</com:middleName>
        <com:lastName>Shields</com:lastName>
      </name>
      <address>
        <com:address>
          <com1:street1>353 N. Clark Street</com1:street1>
          <com1:city>Chicago</com1:city>
          <com1:stateOrCountry>IL</com1:stateOrCountry>
          <com1:zipCode>60654</com1:zipCode>
        </com:address>
      </address>
      <phoneNumber>312-595</phoneNumber>
      <faxNumber>312-595-7208</faxNumber>
      <email>jamie.shields@mesirow.com</email>
    </cco>
    <contactPerson>
      <name>
        <com:firstName>MARIA</com:firstName>
        <com:middleName>SOLEDAD</com:middleName>
        <com:lastName>KAUFMAN</com:lastName>
      </name>
      <titles>
        <title>Senior Vice President</title>
      </titles>
      <address>
        <com:address>
          <com1:street1>353 N. Clark Street</com1:street1>
          <com1:city>Chicago</com1:city>
          <com1:stateOrCountry>IL</com1:stateOrCountry>
          <com1:zipCode>60654</com1:zipCode>
        </com:address>
      </address>
      <phoneNumber>312-595-7291</phoneNumber>
      <faxNumber>312-595-7208</faxNumber>
      <email>maria.kaufman@mesirow.com</email>
    </contactPerson>
    <booksAndRecordsLocations>
      <booksAndRecordsLocation>
        <type>
          <com:add>Add</com:add>
        </type>
        <locationName>Iron Mountain</locationName>
        <contact>
          <addressInfo>
            <com:address>
              <com1:street1>1301 S. Rockwell</com1:street1>
              <com1:city>Chicago</com1:city>
              <com1:stateOrCountry>IL</com1:stateOrCountry>
              <com1:zipCode>60608</com1:zipCode>
            </com:address>
          </addressInfo>
          <phoneNumber>773-522-2826</phoneNumber>
        </contact>
        <locationType>
          <other/>
        </locationType>
        <description>Document storage vendor</description>
      </booksAndRecordsLocation>
      <booksAndRecordsLocation>
        <type>
          <com:add>Add</com:add>
        </type>
        <locationName>Global Relay Communications, Inc.</locationName>
        <contact>
          <addressInfo>
            <com:address>
              <com1:street1>220 Cambie Street</com1:street1>
              <com1:street2>2nd Floor</com1:street2>
              <com1:city>Vancouver</com1:city>
              <com1:stateOrCountry>A1</com1:stateOrCountry>
              <com1:zipCode>V6B 2M9</com1:zipCode>
            </com:address>
          </addressInfo>
          <phoneNumber>888888888</phoneNumber>
        </contact>
        <locationType>
          <other/>
        </locationType>
        <description>email storage and automated compliance review program</description>
      </booksAndRecordsLocation>
      <booksAndRecordsLocation>
        <type>
          <com:add>Add</com:add>
        </type>
        <locationName>Quest CE</locationName>
        <contact>
          <addressInfo>
            <com:address>
              <com1:street1>10100 W. Innovation Dr.</com1:street1>
              <com1:street2>Suite 200</com1:street2>
              <com1:city>Milwaukee</com1:city>
              <com1:stateOrCountry>WI</com1:stateOrCountry>
              <com1:zipCode>53226</com1:zipCode>
            </com:address>
          </addressInfo>
          <phoneNumber>8775933366</phoneNumber>
        </contact>
        <locationType>
          <third-party/>
        </locationType>
        <description>Employee disclosure due to code of ethics; annual compliance interview; firm element CE</description>
      </booksAndRecordsLocation>
      <booksAndRecordsLocation>
        <type>
          <com:add>Add</com:add>
        </type>
        <locationName>Red Oak</locationName>
        <contact>
          <addressInfo>
            <com:address>
              <com1:street1>1320 Arrow Point Dr.</com1:street1>
              <com1:city>Cedar Park</com1:city>
              <com1:stateOrCountry>TX</com1:stateOrCountry>
              <com1:zipCode>78613</com1:zipCode>
            </com:address>
          </addressInfo>
          <phoneNumber>8883024594</phoneNumber>
        </contact>
        <locationType>
          <third-party/>
        </locationType>
        <description>Electronic books and records storage of presentation, marketing and advertising materials.</description>
      </booksAndRecordsLocation>
      <booksAndRecordsLocation>
        <type>
          <com:add>Add</com:add>
        </type>
        <locationName>Star Compliance </locationName>
        <contact>
          <addressInfo>
            <com:address>
              <com1:street1>9200 Corporate Blvd</com1:street1>
              <com1:street2>Suite 440</com1:street2>
              <com1:city>ROckville</com1:city>
              <com1:stateOrCountry>MD</com1:stateOrCountry>
              <com1:zipCode>20850</com1:zipCode>
            </com:address>
          </addressInfo>
          <phoneNumber>3013403900</phoneNumber>
        </contact>
        <locationType>
          <third-party/>
        </locationType>
        <description>Maintains an employee conflicts of interest ("ECOI") platform, an application that receives, stores and archives certain data in electronic form</description>
      </booksAndRecordsLocation>
    </booksAndRecordsLocations>
    <formOfOrganization>
      <formOrgType>
        <formOrgTypes>
          <Corporation/>
        </formOrgTypes>
      </formOrgType>
    </formOfOrganization>
    <monthOfFiscalYearEnd>March</monthOfFiscalYearEnd>
    <organizedJurisdiction>
      <com1:stateOrCountry>DE</com1:stateOrCountry>
    </organizedJurisdiction>
    <dateOfOrganization>10-12-1982</dateOfOrganization>
    <isPrcApplicant>N</isPrcApplicant>
    <numberOfEmployees>166</numberOfEmployees>
    <numberOfAdditionalWebSites>1</numberOfAdditionalWebSites>
    <employeesEngagedInMAA>14</employeesEngagedInMAA>
    <maaEmployeesRegBD>14</maaEmployeesRegBD>
    <maaRegIA>0</maaRegIA>
    <numberOfSolicitingFirms>0</numberOfSolicitingFirms>
    <clientsServedAsMA>3</clientsServedAsMA>
    <typesOfClients>
      <typesOfClients>
        <clientTypes>Municipal Entities</clientTypes>
        <clientTypes>Other</clientTypes>
      </typesOfClients>
      <typesOfClientsOther>Developers</typesOfClientsOther>
    </typesOfClients>
    <numberOfSolicitedME>0</numberOfSolicitedME>
    <numberOfSolicitedOP>0</numberOfSolicitedOP>
    <totalNumberOfSolicitedMEAndOP>0</totalNumberOfSolicitedMEAndOP>
    <typesOfSolicitedPersons>
      <solicitationPersonTypes>
        <solicitationPersonTypes>Other</solicitationPersonTypes>
      </solicitationPersonTypes>
      <spOtherDescription>local municipalities</spOtherDescription>
    </typesOfSolicitedPersons>
    <meOrOPCompensationTypes>
      <compensationTypes>
        <compensationTypes>Hourly Charges</compensationTypes>
        <compensationTypes>Contingent Fees</compensationTypes>
      </compensationTypes>
    </meOrOPCompensationTypes>
    <solicitationCompensationTypes>
      <compensationTypes>
        <compensationTypes>Not Applicable</compensationTypes>
      </compensationTypes>
    </solicitationCompensationTypes>
    <engagedActivities>
      <engagedActivityTypes>
        <engagedActivityType>Advice Insurance Of MS</engagedActivityType>
        <engagedActivityType>Advice Use Of MD</engagedActivityType>
        <engagedActivityType>Other</engagedActivityType>
      </engagedActivityTypes>
      <eaTypeOtherDescription>sales and underwriting of municipal bonds</eaTypeOtherDescription>
    </engagedActivities>
    <otherActivities>
      <brokerDealers>
        <isActivelyEngaged>Y</isActivelyEngaged>
        <isPrimaryBusiness>Y</isPrimaryBusiness>
      </brokerDealers>
    </otherActivities>
    <isEngagedInOtherNonMAABusiness>N</isEngagedInOtherNonMAABusiness>
    <totalFIAAssociatedPersons>0</totalFIAAssociatedPersons>
    <participationInterestMACT>
      <mactBuySellFromClients>N</mactBuySellFromClients>
      <mactBuySellRecommendToClients>N</mactBuySellRecommendToClients>
      <mactEnterDerivativesWithClients>N</mactEnterDerivativesWithClients>
      <mactRecommendOwnedInterestToClients>N</mactRecommendOwnedInterestToClients>
      <mactRecommendToClientsServing>N</mactRecommendToClientsServing>
      <mactRecommendToClientsHavingOtherSalesInterest>N</mactRecommendToClientsHavingOtherSalesInterest>
      <mactDiscAuthBuySellAsMAA>N</mactDiscAuthBuySellAsMAA>
      <mactDiscAuthBuySell>N</mactDiscAuthBuySell>
      <mactDiscAuthDetermineBrokerDealer>N</mactDiscAuthDetermineBrokerDealer>
      <mactDiscAuthDetermineCommissionToBrokerDealer>N</mactDiscAuthDetermineCommissionToBrokerDealer>
      <mactRecommendBrokerDealerToClient>N</mactRecommendBrokerDealerToClient>
      <mactCompensateForReferrals>N</mactCompensateForReferrals>
      <mactReceiveCompensationForReferrals>N</mactReceiveCompensationForReferrals>
    </participationInterestMACT>
    <miscellaneous>Mesirow Financial Services, Inc. is owned 100% by Mesirow Financial Holdings, Inc.  No individual directly or indirectly owns 25% or more of Mesirow Financial Holdings, Inc., the parent corporation</miscellaneous>
    <disclosureAnswers>
      <criminalDisclosure>
        <com:isConvictedOfFelony>N</com:isConvictedOfFelony>
        <com:isChargedWithFelony>N</com:isChargedWithFelony>
        <com:isOrgConvictedOfFelony>N</com:isOrgConvictedOfFelony>
        <com:isOrgChargedWithFelony>N</com:isOrgChargedWithFelony>
      </criminalDisclosure>
      <regulatoryDisclosure>
        <com:isMadeFalseStatement>N</com:isMadeFalseStatement>
        <com:isViolatedRegulation>Y</com:isViolatedRegulation>
        <com:isCauseOfDenial>N</com:isCauseOfDenial>
        <com:isOrderAgainst>Y</com:isOrderAgainst>
        <com:isImposedPenalty>Y</com:isImposedPenalty>
        <com:isUnEthical>N</com:isUnEthical>
        <com:isFoundInViolationOfRegulation>N</com:isFoundInViolationOfRegulation>
        <com:isFoundInCauseOfDenial>N</com:isFoundInCauseOfDenial>
        <com:isOrderAgainstActivity>N</com:isOrderAgainstActivity>
        <com:isDeniedLicense>N</com:isDeniedLicense>
        <com:isFoundMadeFalseStatement>N</com:isFoundMadeFalseStatement>
        <com:isFoundInViolationOfRules>Y</com:isFoundInViolationOfRules>
        <com:isFoundInCauseOfSuspension>N</com:isFoundInCauseOfSuspension>
        <com:isDiscipliend>N</com:isDiscipliend>
        <com:isAuthorizedToActAttorney>N</com:isAuthorizedToActAttorney>
        <com:isRegulatoryComplaint>N</com:isRegulatoryComplaint>
      </regulatoryDisclosure>
      <civilDisclosure>
        <com:isEnjoined>N</com:isEnjoined>
        <com:isFoundInViolationOfRegulation>N</com:isFoundInViolationOfRegulation>
        <com:isDismissed>N</com:isDismissed>
        <com:isNamedInCivilProceeding>N</com:isNamedInCivilProceeding>
      </civilDisclosure>
    </disclosureAnswers>
    <hasAnnualReceiptsLessThan7Million>N</hasAnnualReceiptsLessThan7Million>
    <isAffiliatedWithReceiptsMoreThan7Million>N</isAffiliatedWithReceiptsMoreThan7Million>
    <scheduleA>
      <businesses>
        <business>
          <name>Mesirow Financial Holdings, Inc.</name>
          <controPersonPR>N</controPersonPR>
          <deFeNp>
            <de/>
          </deFeNp>
          <irsNum>36-3498919</irsNum>
          <baseInformation>
            <titleStatus>Majority Owner</titleStatus>
            <statusAcquired>10-30-1992</statusAcquired>
            <ownershipCode>E</ownershipCode>
            <isControPerson>N</isControPerson>
          </baseInformation>
        </business>
        <business>
          <name>Mesirow Financial Services, Inc.</name>
          <controPersonPR>N</controPersonPR>
          <deFeNp>
            <de/>
          </deFeNp>
          <irsNum>36-2933608</irsNum>
          <baseInformation>
            <titleStatus>Minority Owner</titleStatus>
            <statusAcquired>01-01-1994</statusAcquired>
            <ownershipCode>B</ownershipCode>
            <isControPerson>N</isControPerson>
          </baseInformation>
        </business>
      </businesses>
      <persons>
        <person>
          <name>
            <com:firstName>Richard</com:firstName>
            <com:middleName>Scott</com:middleName>
            <com:lastName>Price</com:lastName>
          </name>
          <baseInformation>
            <titleStatus>Director</titleStatus>
            <statusAcquired>09-25-2012</statusAcquired>
            <ownershipCode>NA</ownershipCode>
            <isControPerson>Y</isControPerson>
            <crdNumber>367760</crdNumber>
          </baseInformation>
        </person>
        <person>
          <name>
            <com:firstName>Mary Jo</com:firstName>
            <com:middleName>Moon</com:middleName>
            <com:lastName>Hayes</com:lastName>
          </name>
          <baseInformation>
            <titleStatus>Chief Compliance Officer</titleStatus>
            <statusAcquired>04-01-2021</statusAcquired>
            <ownershipCode>NA</ownershipCode>
            <isControPerson>N</isControPerson>
            <crdNumber>1196353</crdNumber>
          </baseInformation>
        </person>
        <person>
          <name>
            <com:firstName>Todd</com:firstName>
            <com:middleName>E</com:middleName>
            <com:lastName>Waldrop</com:lastName>
          </name>
          <baseInformation>
            <titleStatus>Senior Managing Director</titleStatus>
            <statusAcquired>04-01-2016</statusAcquired>
            <ownershipCode>NA</ownershipCode>
            <isControPerson>N</isControPerson>
            <crdNumber>4194147</crdNumber>
          </baseInformation>
        </person>
        <person>
          <name>
            <com:firstName>Jeffrey</com:firstName>
            <com:middleName>Michael</com:middleName>
            <com:lastName>Levine</com:lastName>
          </name>
          <baseInformation>
            <titleStatus>President, COO</titleStatus>
            <statusAcquired>05-10-2021</statusAcquired>
            <ownershipCode>NA</ownershipCode>
            <isControPerson>Y</isControPerson>
            <crdNumber>5627249</crdNumber>
          </baseInformation>
        </person>
        <person>
          <name>
            <com:firstName>Chris</com:firstName>
            <com:middleName>Dwayne</com:middleName>
            <com:lastName>Farr</com:lastName>
          </name>
          <baseInformation>
            <titleStatus>CFO</titleStatus>
            <statusAcquired>08-01-2025</statusAcquired>
            <ownershipCode>NA</ownershipCode>
            <isControPerson>N</isControPerson>
            <crdNumber>3239925</crdNumber>
          </baseInformation>
        </person>
        <person>
          <name>
            <com:firstName>Jesse</com:firstName>
            <com:middleName>Joseph</com:middleName>
            <com:lastName>Keig</com:lastName>
          </name>
          <baseInformation>
            <titleStatus>Director</titleStatus>
            <statusAcquired>08-01-2025</statusAcquired>
            <ownershipCode>NA</ownershipCode>
            <isControPerson>Y</isControPerson>
            <crdNumber>5268961</crdNumber>
          </baseInformation>
        </person>
      </persons>
    </scheduleA>
    <scheduleC>
      <directBusinesses>
        <business>
          <baseInformation>
            <name>Mesirow Financial Holdings, Inc.</name>
            <controPersonPR>N</controPersonPR>
            <deFeNp>
              <de/>
            </deFeNp>
            <irsNum>36-3498919</irsNum>
            <baseInformation>
              <titleStatus>Majority Owner</titleStatus>
              <statusAcquired>10-30-1992</statusAcquired>
              <ownershipCode>E</ownershipCode>
              <isControPerson>N</isControPerson>
            </baseInformation>
          </baseInformation>
        </business>
        <business>
          <baseInformation>
            <name>Mesirow Financial Services, Inc.</name>
            <controPersonPR>N</controPersonPR>
            <deFeNp>
              <de/>
            </deFeNp>
            <irsNum>36-2933608</irsNum>
            <baseInformation>
              <titleStatus>Minority Owner</titleStatus>
              <statusAcquired>01-01-1994</statusAcquired>
              <ownershipCode>B</ownershipCode>
              <isControPerson>N</isControPerson>
            </baseInformation>
          </baseInformation>
        </business>
      </directBusinesses>
      <directPersons>
        <person>
          <baseInformation>
            <name>
              <com:firstName>Richard</com:firstName>
              <com:middleName>Scott</com:middleName>
              <com:lastName>Price</com:lastName>
            </name>
            <baseInformation>
              <titleStatus>Director</titleStatus>
              <statusAcquired>09-25-2012</statusAcquired>
              <ownershipCode>NA</ownershipCode>
              <isControPerson>Y</isControPerson>
              <crdNumber>367760</crdNumber>
            </baseInformation>
          </baseInformation>
        </person>
        <person>
          <type>
            <com:delete>Delete</com:delete>
          </type>
          <baseInformation>
            <name>
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              <com:middleName>Moon</com:middleName>
              <com:lastName>Hayes</com:lastName>
            </name>
            <baseInformation>
              <titleStatus>Chief Compliance Officer</titleStatus>
              <statusAcquired>04-01-2021</statusAcquired>
              <ownershipCode>NA</ownershipCode>
              <isControPerson>N</isControPerson>
              <crdNumber>1196353</crdNumber>
            </baseInformation>
          </baseInformation>
        </person>
        <person>
          <baseInformation>
            <name>
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              <com:middleName>E</com:middleName>
              <com:lastName>Waldrop</com:lastName>
            </name>
            <baseInformation>
              <titleStatus>Senior Managing Director</titleStatus>
              <statusAcquired>04-01-2016</statusAcquired>
              <ownershipCode>NA</ownershipCode>
              <isControPerson>N</isControPerson>
              <crdNumber>4194147</crdNumber>
            </baseInformation>
          </baseInformation>
        </person>
        <person>
          <baseInformation>
            <name>
              <com:firstName>Jeffrey</com:firstName>
              <com:middleName>Michael</com:middleName>
              <com:lastName>Levine</com:lastName>
            </name>
            <baseInformation>
              <titleStatus>President, COO</titleStatus>
              <statusAcquired>05-10-2021</statusAcquired>
              <ownershipCode>NA</ownershipCode>
              <isControPerson>Y</isControPerson>
              <crdNumber>5627249</crdNumber>
            </baseInformation>
          </baseInformation>
        </person>
        <person>
          <type>
            <com:delete>Delete</com:delete>
          </type>
          <baseInformation>
            <name>
              <com:firstName>Chris</com:firstName>
              <com:middleName>Dwayne</com:middleName>
              <com:lastName>Farr</com:lastName>
            </name>
            <baseInformation>
              <titleStatus>CFO</titleStatus>
              <statusAcquired>08-01-2025</statusAcquired>
              <ownershipCode>NA</ownershipCode>
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