Arrowhead to Report Fiscal 2014 Third Quarter Financial Results

– Conference Call Scheduled for Tuesday, August 12, 2014 –

PASADENA, Calif.–(BUSINESS WIRE)–

Arrowhead Research Corporation (NASDAQ: ARWR), a biopharmaceutical

company developing targeted RNAi therapeutics, today announced that it

will report its financial results for the fiscal 2014 third quarter

ended June 30, 2014, on Tuesday, August 12, 2014, at 4:30 p.m. EDT. To

participate in the conference call, please dial 855-215-6159 (toll free

from the US) or 315-625-6887 (for international callers) and enter

Conference ID 82825377. Investors may also access a live audio webcast

of this conference call on the Company’s website at http://www.arrowheadresearch.com/presentations.

A replay of the webcast will be available approximately two hours after

the conclusion of the call and will remain available for 90 days. An

audio replay will also be available approximately two hours after the

conclusion of the call and will be available for 7 days. The audio

replay can be accessed by dialing 855-859-2056 (toll free from the US),

or 404-537-3406 (for international callers) and entering Conference ID

82825377.

About Arrowhead Research Corporation

Arrowhead Research Corporation is a biopharmaceutical company developing

targeted RNAi therapeutics. The company is leveraging its proprietary

drug delivery technologies to develop targeted drugs based on the RNA

interference mechanism that efficiently silences disease-causing genes.

Arrowhead technologies also enable partners to create peptide-drug

conjugates that specifically home to cell types of interest while

sparing off-target tissues. Arrowhead’s pipeline includes ARC-520 for

chronic hepatitis B virus, ARC-AAT for liver disease associated with

Alpha-1 antitrypsin deficiency, and partner-based programs in obesity

and oncology.

For more information please visit http://www.arrowheadresearch.com,

or follow us on Twitter @ArrowRes.

To be added to the Company’s email list to receive news directly, please

send an email to ir@arrowres.com

Contacts:
Arrowhead Research Corporation
Vince

Anzalone, CFA
626-304-3400
ir@arrowres.com
or
Investor

Relations:
The Trout Group
Lauren Glaser
646-378-2972
ir@arrowres.com
or
Media:
Russo

Partners
Martina Schwarzkopf, Ph.D.
212-845-4292
martina.schwarzkopf@russopartnersllc.com

Source: Arrowhead Research Corporation

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