<SEC-DOCUMENT>0001628280-25-055570.txt : 20251205
<SEC-HEADER>0001628280-25-055570.hdr.sgml : 20251205
<ACCEPTANCE-DATETIME>20251205160038
ACCESSION NUMBER:		0001628280-25-055570
CONFORMED SUBMISSION TYPE:	144
PUBLIC DOCUMENT COUNT:		1
FILED AS OF DATE:		20251205
DATE AS OF CHANGE:		20251205

SUBJECT COMPANY:	

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			ARROWHEAD PHARMACEUTICALS, INC.
		CENTRAL INDEX KEY:			0000879407
		STANDARD INDUSTRIAL CLASSIFICATION:	PHARMACEUTICAL PREPARATIONS [2834]
		ORGANIZATION NAME:           	03 Life Sciences
		EIN:				460408024
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			0930

	FILING VALUES:
		FORM TYPE:		144
		SEC ACT:		1933 Act
		SEC FILE NUMBER:	001-38042
		FILM NUMBER:		251552847

	BUSINESS ADDRESS:	
		STREET 1:		177 E COLORADO BLVD
		STREET 2:		SUITE 700
		CITY:			PASADENA
		STATE:			CA
		ZIP:			91105
		BUSINESS PHONE:		626-696-4702

	MAIL ADDRESS:	
		STREET 1:		177 E COLORADO BLVD
		STREET 2:		SUITE 700
		CITY:			PASADENA
		STATE:			CA
		ZIP:			91105

	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

REPORTING-OWNER:	

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			PERRY MICHAEL S
		CENTRAL INDEX KEY:			0001250379
		ORGANIZATION NAME:           	

	FILING VALUES:
		FORM TYPE:		144

	MAIL ADDRESS:	
		STREET 1:		C/O BIOTRANSPLANT INC
		STREET 2:		196 BOSTON AVE SUITE 2800
		CITY:			MEDFORD
		STATE:			MA
		ZIP:			02155
</SEC-HEADER>
<DOCUMENT>
<TYPE>144
<SEQUENCE>1
<FILENAME>primary_doc.xml
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      <liveTestFlag>LIVE</liveTestFlag>



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    <issuerInfo>
      <issuerCik>0000879407</issuerCik>
      <issuerName>Arrowhead Pharmaceuticals</issuerName>
      <secFileNumber>001-38042</secFileNumber>
      <issuerAddress>
        <com:street1>177 E Colorado Boulevard</com:street1>
        <com:street2>Suite 700</com:street2>
        <com:city>Pasadena</com:city>
        <com:stateOrCountry>CA</com:stateOrCountry>
        <com:zipCode>91105</com:zipCode>
      </issuerAddress>
      <issuerContactPhone>6267888035</issuerContactPhone>
      <nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>Michael Perry</nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>
      <relationshipsToIssuer>
        <relationshipToIssuer>Director</relationshipToIssuer>
      </relationshipsToIssuer>
    </issuerInfo>
    <securitiesInformation>
      <securitiesClassTitle>common</securitiesClassTitle>
      <brokerOrMarketmakerDetails>
        <name>Merrill Lynch</name>
        <address>
          <com:street1>75 Rockefeller Plaza</com:street1>
          <com:city>New York</com:city>
          <com:stateOrCountry>NY</com:stateOrCountry>
          <com:zipCode>10019</com:zipCode>
        </address>
      </brokerOrMarketmakerDetails>
      <noOfUnitsSold>16250</noOfUnitsSold>
      <aggregateMarketValue>991129.29</aggregateMarketValue>
      <noOfUnitsOutstanding>135809558</noOfUnitsOutstanding>
      <approxSaleDate>12/05/2025</approxSaleDate>
      <securitiesExchangeName>NASDAQ</securitiesExchangeName>
    </securitiesInformation>
    <securitiesToBeSold>
      <securitiesClassTitle>COMMON</securitiesClassTitle>
      <acquiredDate>05/14/2020</acquiredDate>
      <natureOfAcquisitionTransaction>COMPENSATION</natureOfAcquisitionTransaction>
      <nameOfPersonfromWhomAcquired>ISSUER</nameOfPersonfromWhomAcquired>
      <isGiftTransaction>N</isGiftTransaction>
      <amountOfSecuritiesAcquired>16250</amountOfSecuritiesAcquired>
      <paymentDate>05/14/2020</paymentDate>
      <natureOfPayment>COMPENSATION</natureOfPayment>
    </securitiesToBeSold>
    <nothingToReportFlagOnSecuritiesSoldInPast3Months>Y</nothingToReportFlagOnSecuritiesSoldInPast3Months>
    <noticeSignature>
      <noticeDate>12/05/2025</noticeDate>
      <signature>Michael Perry</signature>
    </noticeSignature>
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