    <SEC-DOCUMENT>0001193125-16-725582-index.html : 20160929
    <SEC-HEADER>0001193125-16-725582.hdr.sgml : 20160929
    <ACCEPTANCE-DATETIME>20160929153004
    ACCESSION NUMBER:		0001193125-16-725582
    CONFORMED SUBMISSION TYPE:	8-K
    PUBLIC DOCUMENT COUNT:		7
    CONFORMED PERIOD OF REPORT:	20160929
    ITEM INFORMATION:		Regulation FD Disclosure
    ITEM INFORMATION:		Financial Statements and Exhibits
    FILED AS OF DATE:		20160929
    DATE AS OF CHANGE:		20160929

    FILER:

    	COMPANY DATA:
    		COMPANY CONFORMED NAME:			ARROWHEAD PHARMACEUTICALS, INC.
    		CENTRAL INDEX KEY:			0000879407
    		STANDARD INDUSTRIAL CLASSIFICATION:	PHARMACEUTICAL PREPARATIONS [2834]
    		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:		161909899

    	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:	ARROWHEAD RESEARCH CORP
    		DATE OF NAME CHANGE:	20040112

    	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>d278290d8k.htm
    <DESCRIPTION>FORM 8-K
    <TEXT>
    Document 1 - file: d278290d8k.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-99.1
    <SEQUENCE>2
    <FILENAME>d278290dex991.htm
    <DESCRIPTION>EX-99.1
    <TEXT>
    Document 2 - file: d278290dex991.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-99.2
    <SEQUENCE>3
    <FILENAME>d278290dex992.htm
    <DESCRIPTION>EX-99.2
    <TEXT>
    Document 3 - file: d278290dex992.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>4
    <FILENAME>g278290ex99_2s1g1.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 4 - file: g278290ex99_2s1g1.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>5
    <FILENAME>g278290ex99_2s2g1.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 5 - file: g278290ex99_2s2g1.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>6
    <FILENAME>g278290ex99_2s3g1.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 6 - file: g278290ex99_2s3g1.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>7
    <FILENAME>g278290ex99_2s4g1.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 7 - file: g278290ex99_2s4g1.jpg

    </DOCUMENT>
    </SEC-DOCUMENT>