<SEC-DOCUMENT>0001181431-13-054655.txt : 20131022
<SEC-HEADER>0001181431-13-054655.hdr.sgml : 20131022
<ACCEPTANCE-DATETIME>20131021183712
ACCESSION NUMBER:		0001181431-13-054655
CONFORMED SUBMISSION TYPE:	D
PUBLIC DOCUMENT COUNT:		1
ITEM INFORMATION:		<ITEMS>06b
FILED AS OF DATE:		20131022
DATE AS OF CHANGE:		20131021
EFFECTIVENESS DATE:		20131022

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			ARROWHEAD RESEARCH CORP
		CENTRAL INDEX KEY:			0000879407
		STANDARD INDUSTRIAL CLASSIFICATION:	SERVICES-COMMERCIAL PHYSICAL & BIOLOGICAL RESEARCH [8731]
		IRS NUMBER:				460408024
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			0930

	FILING VALUES:
		FORM TYPE:		D
		SEC ACT:		1933 Act
		SEC FILE NUMBER:	021-204987
		FILM NUMBER:		131162284

	BUSINESS ADDRESS:	
		STREET 1:		225 SOUTH LAKE AVENUE
		STREET 2:		SUITE 1050
		CITY:			PASADENA
		STATE:			CA
		ZIP:			91101
		BUSINESS PHONE:		626-304-3400

	MAIL ADDRESS:	
		STREET 1:		225 SOUTH LAKE AVENUE
		STREET 2:		SUITE 1050
		CITY:			PASADENA
		STATE:			CA
		ZIP:			91101

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	INTERACTIVE GROUP INC
		DATE OF NAME CHANGE:	20020509

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	INTERACTIVE INC
		DATE OF NAME CHANGE:	19940224
</SEC-HEADER>
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            <street2>Suite 1050</street2>
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            <stateOrCountry>CA</stateOrCountry>
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                <street2>Suite 1050</street2>
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                <firstName>Michael</firstName>
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                <lastName>Perry</lastName>
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        <industryGroup>
            <industryGroupType>Biotechnology</industryGroupType>
        </industryGroup>
        <issuerSize>
            <revenueRange>$1 - $1,000,000</revenueRange>
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            <dateOfFirstSale>
                <value>2013-10-11</value>
            </dateOfFirstSale>
        </typeOfFiling>
        <durationOfOffering>
            <moreThanOneYear>false</moreThanOneYear>
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        <typesOfSecuritiesOffered>
            <isEquityType>true</isEquityType>
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        <businessCombinationTransaction>
            <isBusinessCombinationTransaction>false</isBusinessCombinationTransaction>
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        </businessCombinationTransaction>
        <minimumInvestmentAccepted>3000000</minimumInvestmentAccepted>
        <salesCompensationList>
            <recipient>
                <recipientName>Jonathan Fassberg</recipientName>
                <recipientCRDNumber>2445289</recipientCRDNumber>
                <associatedBDName>Trout Capital LLC</associatedBDName>
                <associatedBDCRDNumber>131489</associatedBDCRDNumber>
                <recipientAddress>
                    <street1>740 Broadway, 9th Floor</street1>
                    <city>New York</city>
                    <stateOrCountry>NY</stateOrCountry>
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                    <zipCode>10003</zipCode>
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                <foreignSolicitation>true</foreignSolicitation>
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            <recipient>
                <recipientName>Jefferies LLC</recipientName>
                <recipientCRDNumber>2347</recipientCRDNumber>
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                <associatedBDCRDNumber>2347</associatedBDCRDNumber>
                <recipientAddress>
                    <street1>520 Madison Avenue</street1>
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                    <stateOrCountry>NY</stateOrCountry>
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                    <zipCode>10022</zipCode>
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                <recipientAddress>
                    <street1>800 Nicolet Mall</street1>
                    <city>Minneapolis</city>
                    <stateOrCountry>MN</stateOrCountry>
                    <stateOrCountryDescription>MINNESOTA</stateOrCountryDescription>
                    <zipCode>55340</zipCode>
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                </statesOfSolicitationList>
                <foreignSolicitation>true</foreignSolicitation>
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        <offeringSalesAmounts>
            <totalOfferingAmount>64000000</totalOfferingAmount>
            <totalAmountSold>64000000</totalAmountSold>
            <totalRemaining>0</totalRemaining>
            <clarificationOfResponse></clarificationOfResponse>
        </offeringSalesAmounts>
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            <hasNonAccreditedInvestors>false</hasNonAccreditedInvestors>
            <totalNumberAlreadyInvested>11</totalNumberAlreadyInvested>
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        <salesCommissionsFindersFees>
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            </grossProceedsUsed>
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                <issuerName>ARROWHEAD RESEARCH CORP</issuerName>
                <signatureName>Kenneth A. Myszkowski</signatureName>
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