-----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,
 ItN/jEQz09djMUjJhSBUkH8tecDNqi7YImZII0J24eyalbpnZ2ciNtK6S3d1PVqF
 dlFx4sJtVHO/knGI6doyeQ==

<SEC-DOCUMENT>0000950172-09-000016.txt : 20090828
<SEC-HEADER>0000950172-09-000016.hdr.sgml : 20090828
<ACCEPTANCE-DATETIME>20090828163700
ACCESSION NUMBER:		0000950172-09-000016
CONFORMED SUBMISSION TYPE:	D
PUBLIC DOCUMENT COUNT:		1
ITEM INFORMATION:		Rule 506
FILED AS OF DATE:		20090828
DATE AS OF CHANGE:		20090828
EFFECTIVENESS DATE:		20090828

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			PROSPECT CAPITAL CORP
		CENTRAL INDEX KEY:			0001287032
		IRS NUMBER:				432048643
		STATE OF INCORPORATION:			MD
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		D
		SEC ACT:		1933 Act
		SEC FILE NUMBER:	021-134036
		FILM NUMBER:		091043638

	BUSINESS ADDRESS:	
		STREET 1:		10 EAST 40TH STREET 44TH FL
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10016
		BUSINESS PHONE:		212-448-0702

	MAIL ADDRESS:	
		STREET 1:		10 EAST 40TH STREET 44TH FL
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10016

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	PROSPECT ENERGY CORP
		DATE OF NAME CHANGE:	20040623

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	PROSPECT STREET ENERGY CORP
		DATE OF NAME CHANGE:	20040414
</SEC-HEADER>
<DOCUMENT>
<TYPE>D
<SEQUENCE>1
<FILENAME>primary_doc.xml
<TEXT>
<XML>
<?xml version="1.0"?>
<edgarSubmission>

    <schemaVersion>X0502</schemaVersion>

    <submissionType>D</submissionType>

    <testOrLive>LIVE</testOrLive>

    <primaryIssuer>
        <cik>0001287032</cik>
        <entityName>PROSPECT CAPITAL CORP</entityName>
        <issuerAddress>
            <street1>10 EAST 40TH STREET 44TH FL</street1>
            <street2></street2>
            <city>NEW YORK</city>
            <stateOrCountry>NY</stateOrCountry>
            <zipCode>10016</zipCode>
        </issuerAddress>
        <issuerPhoneNumber>212-448-0702</issuerPhoneNumber>
        <issuerPreviousNameList>
            <previousName>PROSPECT ENERGY CORP</previousName>
            <previousName>PROSPECT STREET ENERGY CORP</previousName>
        </issuerPreviousNameList>
        <jurisdictionOfInc>MARYLAND</jurisdictionOfInc>
        <entityType>Corporation</entityType>
        <yearOfInc>
            <overFiveYears>true</overFiveYears>
        </yearOfInc>
    </primaryIssuer>

    <relatedPersonsList>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>John</firstName>
                <middleName>F.</middleName>
                <lastName>Barry III</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
                <street1>10 East 40th Street, 44th Floor</street1>
                <street2></street2>
                <city>New York</city>
                <stateOrCountry>NY</stateOrCountry>
                <zipCode>10016</zipCode>
            </relatedPersonAddress>
            <relatedPersonRelationshipList>
                <relationship>Executive Officer</relationship>
                <relationship>Director</relationship>
            </relatedPersonRelationshipList>
            <relationshipClarification></relationshipClarification>
        </relatedPersonInfo>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>M.</firstName>
                <middleName>Grier</middleName>
                <lastName>Eliasek</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
                <street1>10 East 40th Street, 44th Floor</street1>
                <street2></street2>
                <city>New York</city>
                <stateOrCountry>NY</stateOrCountry>
                <zipCode>10016</zipCode>
            </relatedPersonAddress>
            <relatedPersonRelationshipList>
                <relationship>Executive Officer</relationship>
                <relationship>Director</relationship>
            </relatedPersonRelationshipList>
            <relationshipClarification></relationshipClarification>
        </relatedPersonInfo>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>Brian</firstName>
                <middleName>H.</middleName>
                <lastName>Oswald</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
                <street1>10 East 40th Street, 44th Floor</street1>
                <street2></street2>
                <city>New York</city>
                <stateOrCountry>NY</stateOrCountry>
                <zipCode>10016</zipCode>
            </relatedPersonAddress>
            <relatedPersonRelationshipList>
                <relationship>Executive Officer</relationship>
            </relatedPersonRelationshipList>
            <relationshipClarification></relationshipClarification>
        </relatedPersonInfo>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>Graham</firstName>
                <middleName>D. S.</middleName>
                <lastName>Anderson</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
                <street1>10 East 40th Street, 44th Floor</street1>
                <street2></street2>
                <city>New York</city>
                <stateOrCountry>NY</stateOrCountry>
                <zipCode>10016</zipCode>
            </relatedPersonAddress>
            <relatedPersonRelationshipList>
                <relationship>Director</relationship>
            </relatedPersonRelationshipList>
            <relationshipClarification></relationshipClarification>
        </relatedPersonInfo>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>Andrew</firstName>
                <middleName>C,</middleName>
                <lastName>Cooper</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
                <street1>10 East 40th Street, 44th Floor</street1>
                <street2></street2>
                <city>New York</city>
                <stateOrCountry>NY</stateOrCountry>
                <zipCode>10016</zipCode>
            </relatedPersonAddress>
            <relatedPersonRelationshipList>
                <relationship>Director</relationship>
            </relatedPersonRelationshipList>
            <relationshipClarification></relationshipClarification>
        </relatedPersonInfo>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>Eugene</firstName>
                <middleName>S.</middleName>
                <lastName>Stark</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
                <street1>10 East 40th Street, 44th Floor</street1>
                <street2></street2>
                <city>New York</city>
                <stateOrCountry>NY</stateOrCountry>
                <zipCode>10016</zipCode>
            </relatedPersonAddress>
            <relatedPersonRelationshipList>
                <relationship>Director</relationship>
            </relatedPersonRelationshipList>
            <relationshipClarification></relationshipClarification>
        </relatedPersonInfo>
    </relatedPersonsList>

    <offeringData>
        <industryGroup>
            <industryGroupType>Pooled Investment Fund</industryGroupType>
            <investmentFundInfo>
                <investmentFundType>Other Investment Fund</investmentFundType>
                <is40Act>true</is40Act>
            </investmentFundInfo>
        </industryGroup>
        <issuerSize>
            <aggregateNetAssetValueRange>Over $100,000,000</aggregateNetAssetValueRange>
        </issuerSize>
        <federalExemptionsExclusions>
            <item>06</item>
        </federalExemptionsExclusions>
        <typeOfFiling>
            <newOrAmendment>
                <isAmendment>false</isAmendment>
            </newOrAmendment>
            <dateOfFirstSale>
                <value>2009-08-17</value>
            </dateOfFirstSale>
        </typeOfFiling>
        <durationOfOffering>
            <moreThanOneYear>false</moreThanOneYear>
        </durationOfOffering>
        <typesOfSecuritiesOffered>
            <isEquityType>true</isEquityType>
        </typesOfSecuritiesOffered>
        <businessCombinationTransaction>
            <isBusinessCombinationTransaction>false</isBusinessCombinationTransaction>
            <clarificationOfResponse></clarificationOfResponse>
        </businessCombinationTransaction>
        <minimumInvestmentAccepted>0</minimumInvestmentAccepted>
        <salesCompensationList>
            <recipient>
                <recipientName>Fox-Pitt Kelton Cochran Caronia Waller (USA) LLC</recipientName>
                <recipientCRDNumber>10485</recipientCRDNumber>
                <associatedBDName>None</associatedBDName>
                <associatedBDCRDNumber>None</associatedBDCRDNumber>
                <recipientAddress>
                    <street1>420 Fifth Avenue, 5th Floor</street1>
                    <street2></street2>
                    <city>New York</city>
                    <stateOrCountry>NY</stateOrCountry>
                    <zipCode>10018</zipCode>
                </recipientAddress>
                <statesOfSolicitationList>
                    <state>CO</state>
                    <state>IL</state>
                    <state>NM</state>
                    <state>NY</state>
                </statesOfSolicitationList>
            </recipient>
        </salesCompensationList>
        <offeringSalesAmounts>
            <totalOfferingAmount>29322331</totalOfferingAmount>
            <totalAmountSold>29322331</totalAmountSold>
            <totalRemaining>0</totalRemaining>
            <clarificationOfResponse></clarificationOfResponse>
        </offeringSalesAmounts>
        <investors>
            <hasNonAccreditedInvestors>false</hasNonAccreditedInvestors>
            <totalNumberAlreadyInvested>13</totalNumberAlreadyInvested>
        </investors>
        <salesCommissionsFindersFees>
            <salesCommissions>
                <dollarAmount>76500</dollarAmount>
            </salesCommissions>
            <findersFees>
                <dollarAmount>0</dollarAmount>
            </findersFees>
            <clarificationOfResponse></clarificationOfResponse>
        </salesCommissionsFindersFees>
        <useOfProceeds>
            <grossProceedsUsed>
                <dollarAmount>0</dollarAmount>
            </grossProceedsUsed>
            <clarificationOfResponse></clarificationOfResponse>
        </useOfProceeds>
        <signatureBlock>
            <authorizedRepresentative>false</authorizedRepresentative>
            <signature>
                <issuerName>PROSPECT CAPITAL CORP</issuerName>
                <signatureName>Brian H. Oswald</signatureName>
                <nameOfSigner>Brian H. Oswald</nameOfSigner>
                <signatureTitle>Chief Financial Officer &amp; Secretary</signatureTitle>
                <signatureDate>2009-08-28</signatureDate>
            </signature>
        </signatureBlock>
    </offeringData>
</edgarSubmission>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
-----END PRIVACY-ENHANCED MESSAGE-----