-----BEGIN PRIVACY-ENHANCED MESSAGE-----
Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
Originator-Key-Asymmetric:
 MFgwCgYEVQgBAQICAf8DSgAwRwJAW2sNKK9AVtBzYZmr6aGjlWyK3XmZv3dTINen
 TWSM7vrzLADbmYQaionwg5sDW3P6oaM5D3tdezXMm7z1T+B+twIDAQAB
MIC-Info: RSA-MD5,RSA,
 PBMD/LaDODgLzlSrB4HKjUx1dyBcHx1fG4Jufy9lVTEzw/XQeCbxjwfdESeM3YQV
 UwaHR0FnKeVpYwb/ljReow==

<SEC-DOCUMENT>0000827221-09-000004.txt : 20090903
<SEC-HEADER>0000827221-09-000004.hdr.sgml : 20090903
<ACCEPTANCE-DATETIME>20090903171414
ACCESSION NUMBER:		0000827221-09-000004
CONFORMED SUBMISSION TYPE:	D
PUBLIC DOCUMENT COUNT:		1
ITEM INFORMATION:		Rule 506
FILED AS OF DATE:		20090903
DATE AS OF CHANGE:		20090903
EFFECTIVENESS DATE:		20090903

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			MESIROW FINANCIAL HOLDINGS INC
		CENTRAL INDEX KEY:			0000827221
		IRS NUMBER:				000000000
		STATE OF INCORPORATION:			DE

	FILING VALUES:
		FORM TYPE:		D
		SEC ACT:		1933 Act
		SEC FILE NUMBER:	021-82722-1C
		FILM NUMBER:		091054277

	BUSINESS ADDRESS:	
		STREET 1:		350 N CLARK ST
		CITY:			CHICAGO
		STATE:			IL
		ZIP:			60654
		BUSINESS PHONE:		3125956000

	MAIL ADDRESS:	
		STREET 1:		350 N CLARK ST
		CITY:			CHICAGO
		STATE:			IL
		ZIP:			60654
</SEC-HEADER>
<DOCUMENT>
<TYPE>D
<SEQUENCE>1
<FILENAME>primary_doc.xml
<TEXT>
<XML>
<?xml version="1.0"?>
<edgarSubmission>

    <schemaVersion>X0502</schemaVersion>

    <submissionType>D</submissionType>

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        <cik>0000827221</cik>
        <entityName>MESIROW FINANCIAL HOLDINGS INC</entityName>
        <issuerAddress>
            <street1>350 N CLARK ST</street1>
            <street2></street2>
            <city>CHICAGO</city>
            <stateOrCountry>IL</stateOrCountry>
            <zipCode>60654</zipCode>
        </issuerAddress>
        <issuerPhoneNumber>3125956000</issuerPhoneNumber>
        <issuerPreviousNameList>
            <previousName>Mesirow Holding Company, Inc.</previousName>
            <previousName>Mesirow Financial Corporation</previousName>
        </issuerPreviousNameList>
        <jurisdictionOfInc>DELAWARE</jurisdictionOfInc>
        <entityType>Corporation</entityType>
        <yearOfInc>
            <overFiveYears>true</overFiveYears>
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            <relatedPersonName>
                <firstName>James</firstName>
                <middleName>C</middleName>
                <lastName>Tyree</lastName>
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                <street1>350 North Clark Street</street1>
                <street2></street2>
                <city>Chicago</city>
                <stateOrCountry>IL</stateOrCountry>
                <zipCode>60654</zipCode>
            </relatedPersonAddress>
            <relatedPersonRelationshipList>
                <relationship>Executive Officer</relationship>
                <relationship>Director</relationship>
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            <relationshipClarification></relationshipClarification>
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            <relatedPersonName>
                <firstName>Thomas</firstName>
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                <lastName>Galuhn</lastName>
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            <relationshipClarification></relationshipClarification>
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        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>Lester</firstName>
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            <relatedPersonName>
                <firstName>Richard</firstName>
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                <street1>350 North Clark Street</street1>
                <street2></street2>
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                <stateOrCountry>IL</stateOrCountry>
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            <relatedPersonRelationshipList>
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                <firstName>Paul</firstName>
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                <lastName>Rice</lastName>
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                <street1>350 North Clark Street</street1>
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                <zipCode>60654</zipCode>
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            <relatedPersonRelationshipList>
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            <relationshipClarification></relationshipClarification>
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        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>Howard</firstName>
                <middleName>M</middleName>
                <lastName>Rossman</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
                <street1>350 North Clark Street</street1>
                <street2></street2>
                <city>Chicago</city>
                <stateOrCountry>IL</stateOrCountry>
                <zipCode>60654</zipCode>
            </relatedPersonAddress>
            <relatedPersonRelationshipList>
                <relationship>Executive Officer</relationship>
                <relationship>Director</relationship>
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            <relationshipClarification></relationshipClarification>
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        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>Marc</firstName>
                <middleName>E</middleName>
                <lastName>Sacks</lastName>
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            <relatedPersonAddress>
                <street1>350 North Clark Street</street1>
                <street2></street2>
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        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>Ralph</firstName>
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                <lastName>Tuliano</lastName>
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                <street1>350 North Clark Street</street1>
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            <relatedPersonRelationshipList>
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            <relationshipClarification></relationshipClarification>
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        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>Julie</firstName>
                <middleName>E</middleName>
                <lastName>Vander Weele</lastName>
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            <relatedPersonRelationshipList>
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            <relationshipClarification></relationshipClarification>
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        <relatedPersonInfo>
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                <firstName>Stephen</firstName>
                <middleName>C</middleName>
                <lastName>Vogt</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
                <street1>350 North Clark Street</street1>
                <street2></street2>
                <city>Chicago</city>
                <stateOrCountry>IL</stateOrCountry>
                <zipCode>60654</zipCode>
            </relatedPersonAddress>
            <relatedPersonRelationshipList>
                <relationship>Executive Officer</relationship>
                <relationship>Director</relationship>
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        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>Bruce</firstName>
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        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>Kristie</firstName>
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        <relatedPersonInfo>
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                <lastName>Crowe</lastName>
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    <offeringData>
        <industryGroup>
            <industryGroupType>Other Banking and Financial Services</industryGroupType>
        </industryGroup>
        <issuerSize>
            <revenueRange>Over $100,000,000</revenueRange>
        </issuerSize>
        <federalExemptionsExclusions>
            <item>06</item>
        </federalExemptionsExclusions>
        <typeOfFiling>
            <newOrAmendment>
                <isAmendment>false</isAmendment>
            </newOrAmendment>
            <dateOfFirstSale>
                <value>2009-08-27</value>
            </dateOfFirstSale>
        </typeOfFiling>
        <durationOfOffering>
            <moreThanOneYear>false</moreThanOneYear>
        </durationOfOffering>
        <typesOfSecuritiesOffered>
            <isEquityType>true</isEquityType>
        </typesOfSecuritiesOffered>
        <businessCombinationTransaction>
            <isBusinessCombinationTransaction>false</isBusinessCombinationTransaction>
            <clarificationOfResponse></clarificationOfResponse>
        </businessCombinationTransaction>
        <minimumInvestmentAccepted>10000</minimumInvestmentAccepted>
        <salesCompensationList></salesCompensationList>
        <offeringSalesAmounts>
            <totalOfferingAmount>17743448</totalOfferingAmount>
            <totalAmountSold>17668031</totalAmountSold>
            <totalRemaining>75417</totalRemaining>
            <clarificationOfResponse></clarificationOfResponse>
        </offeringSalesAmounts>
        <investors>
            <hasNonAccreditedInvestors>true</hasNonAccreditedInvestors>
            <numberNonAccreditedInvestors>21</numberNonAccreditedInvestors>
            <totalNumberAlreadyInvested>117</totalNumberAlreadyInvested>
        </investors>
        <salesCommissionsFindersFees>
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                <dollarAmount>0</dollarAmount>
            </salesCommissions>
            <findersFees>
                <dollarAmount>0</dollarAmount>
            </findersFees>
            <clarificationOfResponse></clarificationOfResponse>
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                <dollarAmount>0</dollarAmount>
            </grossProceedsUsed>
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        <signatureBlock>
            <authorizedRepresentative>false</authorizedRepresentative>
            <signature>
                <issuerName>MESIROW FINANCIAL HOLDINGS INC</issuerName>
                <signatureName>Kristie P. Paskvan</signatureName>
                <nameOfSigner>Kristie P. Paskvan</nameOfSigner>
                <signatureTitle>Chief Financial Officer</signatureTitle>
                <signatureDate>2009-09-03</signatureDate>
            </signature>
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</edgarSubmission>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
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