JOINT FILING AGREEMENTJoint Filing Agreement • December 23rd, 2011 • Biotechnology Value Fund L P • Investment advice
Contract Type FiledDecember 23rd, 2011 Company IndustryThe undersigned hereby agree that the Statement on Schedule 13G dated December 23, 2011 with respect to the shares of Common Stock of Nektar Therapeutics, and any further amendments thereto executed by each and any of the undersigned shall be filed on behalf of each of the undersigned pursuant to and in accordance with the provisions of Rule 13d-1(k)(1) under the Securities Exchange Act of 1934, as amended.