-----BEGIN PRIVACY-ENHANCED MESSAGE-----
Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
Originator-Key-Asymmetric:
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 TWSM7vrzLADbmYQaionwg5sDW3P6oaM5D3tdezXMm7z1T+B+twIDAQAB
MIC-Info: RSA-MD5,RSA,
 NrI2MHTa83kxet7q2sl2rGCLRP5d5USewkueJrISUCelwryi8ciXen9SPbDl2Ghf
 UD5MOei0ijXDiKNdBEO2HQ==

<SEC-DOCUMENT>0001181431-10-050769.txt : 20101013
<SEC-HEADER>0001181431-10-050769.hdr.sgml : 20101013
<ACCEPTANCE-DATETIME>20101013140356
ACCESSION NUMBER:		0001181431-10-050769
CONFORMED SUBMISSION TYPE:	D/A
PUBLIC DOCUMENT COUNT:		1
ITEM INFORMATION:		Rule 506
FILED AS OF DATE:		20101013
DATE AS OF CHANGE:		20101013
EFFECTIVENESS DATE:		20101013

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			PACIFIC MERCANTILE BANCORP
		CENTRAL INDEX KEY:			0001109546
		STANDARD INDUSTRIAL CLASSIFICATION:	NATIONAL COMMERCIAL BANKS [6021]
		IRS NUMBER:				330898238
		STATE OF INCORPORATION:			CA
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		D/A
		SEC ACT:		1933 Act
		SEC FILE NUMBER:	021-136962
		FILM NUMBER:		101121430

	BUSINESS ADDRESS:	
		STREET 1:		949 SOUTH COAST DRIVE
		STREET 2:		THIRD FLOOR
		CITY:			COSTA MESA
		STATE:			CA
		ZIP:			92626
		BUSINESS PHONE:		714-438-2500

	MAIL ADDRESS:	
		STREET 1:		949 SOUTH COAST DRIVE
		STREET 2:		THIRD FLOOR
		CITY:			COSTA MESA
		STATE:			CA
		ZIP:			92626
</SEC-HEADER>
<DOCUMENT>
<TYPE>D/A
<SEQUENCE>1
<FILENAME>primary_doc.xml
<TEXT>
<XML>
<?xml version="1.0"?>
<edgarSubmission>

    <schemaVersion>X0704</schemaVersion>

    <submissionType>D/A</submissionType>

    <testOrLive>LIVE</testOrLive>

    <primaryIssuer>
        <cik>0001109546</cik>
        <entityName>PACIFIC MERCANTILE BANCORP</entityName>
        <issuerAddress>
            <street1>949 South Coast Drive, Third Floor</street1>
            <city>Costa Mesa</city>
            <stateOrCountry>CA</stateOrCountry>
            <stateOrCountryDescription>CALIFORNIA</stateOrCountryDescription>
            <zipCode>92626</zipCode>
        </issuerAddress>
        <issuerPhoneNumber>714-438-2500</issuerPhoneNumber>
        <jurisdictionOfInc>CALIFORNIA</jurisdictionOfInc>
        <issuerPreviousNameList>
            <value>None</value>
        </issuerPreviousNameList>
        <edgarPreviousNameList>
            <value>None</value>
        </edgarPreviousNameList>
        <entityType>Corporation</entityType>
        <yearOfInc>
            <overFiveYears>true</overFiveYears>
        </yearOfInc>
    </primaryIssuer>

    <relatedPersonsList>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>Raymond</firstName>
                <middleName>E</middleName>
                <lastName>Dellerba</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
                <street1>949 South Coast Drive, Third Floor</street1>
                <city>Costa Mesa</city>
                <stateOrCountry>CA</stateOrCountry>
                <stateOrCountryDescription>CALIFORNIA</stateOrCountryDescription>
                <zipCode>92626</zipCode>
            </relatedPersonAddress>
            <relatedPersonRelationshipList>
                <relationship>Executive Officer</relationship>
                <relationship>Director</relationship>
            </relatedPersonRelationshipList>
            <relationshipClarification></relationshipClarification>
        </relatedPersonInfo>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>Nancy</firstName>
                <middleName>A</middleName>
                <lastName>Gray</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
                <street1>949 South Coast Drive, Third Floor</street1>
                <city>Costa Mesa</city>
                <stateOrCountry>CA</stateOrCountry>
                <stateOrCountryDescription>CALIFORNIA</stateOrCountryDescription>
                <zipCode>92626</zipCode>
            </relatedPersonAddress>
            <relatedPersonRelationshipList>
                <relationship>Executive Officer</relationship>
            </relatedPersonRelationshipList>
            <relationshipClarification></relationshipClarification>
        </relatedPersonInfo>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>George</firstName>
                <middleName>H</middleName>
                <lastName>Wells</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
                <street1>949 South Coast Drive, Third Floor</street1>
                <city>Costa Mesa</city>
                <stateOrCountry>CA</stateOrCountry>
                <stateOrCountryDescription>CALIFORNIA</stateOrCountryDescription>
                <zipCode>92626</zipCode>
            </relatedPersonAddress>
            <relatedPersonRelationshipList>
                <relationship>Director</relationship>
            </relatedPersonRelationshipList>
            <relationshipClarification></relationshipClarification>
        </relatedPersonInfo>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>Warren</firstName>
                <middleName>T</middleName>
                <lastName>Finley</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
                <street1>949 South Coast Drive, Third Floor</street1>
                <city>Costa Mesa</city>
                <stateOrCountry>CA</stateOrCountry>
                <stateOrCountryDescription>CALIFORNIA</stateOrCountryDescription>
                <zipCode>92626</zipCode>
            </relatedPersonAddress>
            <relatedPersonRelationshipList>
                <relationship>Director</relationship>
            </relatedPersonRelationshipList>
            <relationshipClarification></relationshipClarification>
        </relatedPersonInfo>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>Matthew</firstName>
                <middleName>F</middleName>
                <lastName>Schafnitz</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
                <street1>949 South Coast Drive, Third Floor</street1>
                <city>Costa Mesa</city>
                <stateOrCountry>CA</stateOrCountry>
                <stateOrCountryDescription>CALIFORNIA</stateOrCountryDescription>
                <zipCode>92626</zipCode>
            </relatedPersonAddress>
            <relatedPersonRelationshipList>
                <relationship>Director</relationship>
            </relatedPersonRelationshipList>
            <relationshipClarification></relationshipClarification>
        </relatedPersonInfo>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>John</firstName>
                <lastName>Thomas</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
                <street1>949 South Coast Drive, Third Floor</street1>
                <city>Costa Mesa</city>
                <stateOrCountry>CA</stateOrCountry>
                <stateOrCountryDescription>CALIFORNIA</stateOrCountryDescription>
                <zipCode>92626</zipCode>
            </relatedPersonAddress>
            <relatedPersonRelationshipList>
                <relationship>Director</relationship>
            </relatedPersonRelationshipList>
            <relationshipClarification></relationshipClarification>
        </relatedPersonInfo>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>Gary</firstName>
                <middleName>M</middleName>
                <lastName>Williams</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
                <street1>949 South Coast Drive, Third Floor</street1>
                <city>Costa Mesa</city>
                <stateOrCountry>CA</stateOrCountry>
                <stateOrCountryDescription>CALIFORNIA</stateOrCountryDescription>
                <zipCode>92626</zipCode>
            </relatedPersonAddress>
            <relatedPersonRelationshipList>
                <relationship>Director</relationship>
            </relatedPersonRelationshipList>
            <relationshipClarification></relationshipClarification>
        </relatedPersonInfo>
    </relatedPersonsList>

    <offeringData>
        <industryGroup>
            <industryGroupType>Commercial Banking</industryGroupType>
        </industryGroup>
        <issuerSize>
            <revenueRange>$25,000,001 - $100,000,000</revenueRange>
        </issuerSize>
        <federalExemptionsExclusions>
            <item>06</item>
        </federalExemptionsExclusions>
        <typeOfFiling>
            <newOrAmendment>
                <isAmendment>true</isAmendment>
                <previousAccessionNumber>0001181431-10-002868</previousAccessionNumber>
            </newOrAmendment>
            <dateOfFirstSale>
                <value>2009-11-27</value>
            </dateOfFirstSale>
        </typeOfFiling>
        <durationOfOffering>
            <moreThanOneYear>false</moreThanOneYear>
        </durationOfOffering>
        <typesOfSecuritiesOffered>
            <isEquityType>true</isEquityType>
        </typesOfSecuritiesOffered>
        <businessCombinationTransaction>
            <isBusinessCombinationTransaction>false</isBusinessCombinationTransaction>
            <clarificationOfResponse></clarificationOfResponse>
        </businessCombinationTransaction>
        <minimumInvestmentAccepted>100000</minimumInvestmentAccepted>
        <salesCompensationList></salesCompensationList>
        <offeringSalesAmounts>
            <totalOfferingAmount>15500000</totalOfferingAmount>
            <totalAmountSold>12655000</totalAmountSold>
            <totalRemaining>2845000</totalRemaining>
            <clarificationOfResponse></clarificationOfResponse>
        </offeringSalesAmounts>
        <investors>
            <hasNonAccreditedInvestors>false</hasNonAccreditedInvestors>
            <totalNumberAlreadyInvested>31</totalNumberAlreadyInvested>
        </investors>
        <salesCommissionsFindersFees>
            <salesCommissions>
                <dollarAmount>0</dollarAmount>
            </salesCommissions>
            <findersFees>
                <dollarAmount>0</dollarAmount>
            </findersFees>
            <clarificationOfResponse></clarificationOfResponse>
        </salesCommissionsFindersFees>
        <useOfProceeds>
            <grossProceedsUsed>
                <dollarAmount>0</dollarAmount>
            </grossProceedsUsed>
            <clarificationOfResponse></clarificationOfResponse>
        </useOfProceeds>
        <signatureBlock>
            <authorizedRepresentative>true</authorizedRepresentative>
            <signature>
                <issuerName>Pacific Mercantile Bancorp</issuerName>
                <signatureName>/s/ Nancy A. Gray</signatureName>
                <nameOfSigner>Nancy A. Gray</nameOfSigner>
                <signatureTitle>Senior Executive Vice President and Chief Financial Officer</signatureTitle>
                <signatureDate>2010-10-07</signatureDate>
            </signature>
        </signatureBlock>
    </offeringData>
</edgarSubmission>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
-----END PRIVACY-ENHANCED MESSAGE-----