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 16, 2013, 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, 2013, and to the reference of our Firm under the caption “Experts” in the Registration Statement.
| /s/ Rose, Snyder & Jacobs LLP |
| Rose, Snyder & Jacobs LLP |
| Encino, California |
| January 31, 2014 |