WARRANT TO PURCHASE SHARES OF THE COMMON STOCK Of ARROWHEAD RESEARCH CORPORATION, A Delaware corporationArrowhead Research Corp • October 12th, 2004 • Services-commercial physical & biological research • California
Company FiledOctober 12th, 2004 Industry JurisdictionThis certifies that, for value received, the Holder identified as such on the signature page hereof (together with its successors and assigns) is entitled to subscribe for and purchase, on the terms hereof, shares of the Common Stock, $0.001 par value (the “Common Stock”) of Arrowhead Research Corporation, a Delaware corporation (the “Company”), subject to adjustment as provided herein.