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/A of our report dated December 14, 2016, with respect to the consolidated financial statements of Arrowhead Pharmaceuticals, Inc. and Subsidiaries appearing in the Company’s Annual Report on Form 10-K for the year ended September 30, 2016, 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 13, 2017