    <SEC-DOCUMENT>0001193125-16-532364-index.html : 20160406
    <SEC-HEADER>0001193125-16-532364.hdr.sgml : 20160406
    <ACCEPTANCE-DATETIME>20160406171836
    ACCESSION NUMBER:		0001193125-16-532364
    CONFORMED SUBMISSION TYPE:	8-K
    PUBLIC DOCUMENT COUNT:		8
    CONFORMED PERIOD OF REPORT:	20160406
    ITEM INFORMATION:		Amendments to Articles of Incorporation or Bylaws; Change in Fiscal Year
    ITEM INFORMATION:		Financial Statements and Exhibits
    FILED AS OF DATE:		20160406
    DATE AS OF CHANGE:		20160406

    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:		8-K
    		SEC ACT:		1934 Act
    		SEC FILE NUMBER:	000-21898
    		FILM NUMBER:		161558285

    	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>
    <DOCUMENT>
    <TYPE>8-K
    <SEQUENCE>1
    <FILENAME>d175317d8k.htm
    <DESCRIPTION>8-K
    <TEXT>
    Document 1 - file: d175317d8k.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-3.1
    <SEQUENCE>2
    <FILENAME>d175317dex31.htm
    <DESCRIPTION>EX-3.1
    <TEXT>
    Document 2 - file: d175317dex31.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-3.2
    <SEQUENCE>3
    <FILENAME>d175317dex32.htm
    <DESCRIPTION>EX-3.2
    <TEXT>
    Document 3 - file: d175317dex32.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-3.3
    <SEQUENCE>4
    <FILENAME>d175317dex33.htm
    <DESCRIPTION>EX-3.3
    <TEXT>
    Document 4 - file: d175317dex33.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-3.4
    <SEQUENCE>5
    <FILENAME>d175317dex34.htm
    <DESCRIPTION>EX-3.4
    <TEXT>
    Document 5 - file: d175317dex34.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-4.1
    <SEQUENCE>6
    <FILENAME>d175317dex41.htm
    <DESCRIPTION>EX-4.1
    <TEXT>
    Document 6 - file: d175317dex41.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>7
    <FILENAME>g175317001.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 7 - file: g175317001.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>8
    <FILENAME>g175317002.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 8 - file: g175317002.jpg

    </DOCUMENT>
    </SEC-DOCUMENT>