Exhibit 23.1
CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM
We hereby consent to the incorporation by reference, in this Registration Statement on Form S-3 of our report dated December 27, 2012, with respect to the consolidated financial statements of Arrowhead Research Corporation and Subsidiaries appearing in the Company’s Annual Report on Form 10-K for the year ended September 30, 2012, and to the reference of our Firm under the caption “Experts” in the Registration Statement. Our report relating to the consolidated financial statements contains an explanatory paragraph regarding the Company’s ability to continue as a going concern.
/s/ Rose, Snyder & Jacobs LLP
Rose, Snyder & Jacobs LLP
Encino, California
May 17, 2013