ARROWHEAD PHARMACEUTICALS INC

The Nomination Committee of the Board annually considers the size, composition and needs of the Board and, as appropriate, recommends the nominees for directors to the Board for approval. The Nomination Committee considers and evaluates suggestions from many sources regarding possible candidates for directors. Below are general criteria for the evaluation of current and proposed directors:

•The highest ethical character and shared values with our Code of Corporate Conduct

•Reputation, both personal and professional, consistent with our image and reputation

•Accomplishment within a candidate’s field, with superior credentials and recognition

•Relevant expertise and experience and the ability to offer advice and guidance to the Chief Executive Officer based on such expertise and experience

•Independence, without the appearance of any conflict in serving as a Director, and independence of any particular constituency with the ability to represent all stockholders

•Ability to exercise sound business judgment

•Diversity, reflecting differences in skills, regional and industry experience, backgrounds, ages, and other unique characteristics, such as race, gender and ethnicity

The Nomination Committee considers the mix of skills and experience among current and prospective directors with a goal of assembling a Board with complementary skills for the benefit of the Company. Listed below are selected key contributions of each current Board member. The table is not intended to be an exhaustive summary of all the contributions of each Board member.

Board Diversity

The Nomination Committee believes that the Board should represent a diverse mix of skills, regional and industry experience, backgrounds, ages, and other unique characteristics, such as race, gender, and ethnicity. In furtherance of this goal, the Committee is committed to actively seeking out highly qualified diverse candidates (including women and minority candidates) to include in the pool from which Board nominees are chosen.