X0202 4 2006-03-02 0 0001183765 THRESHOLD PHARMACEUTICALS INC THLD 0001162183 MORGENTHALER PARTNERS VII LP 50 PUBLIC SQUARE SUITE 2700 CLEVELAND OH 44113 0 0 1 0 0001316252 Christoffersen Ralph E 4430 ARAPAHOE AVENUE SUITE 200 BOULDER CO 80303 0 0 0 1 Former Director See Footnote 2 Common Stock 2006-03-02 2006-03-02 4 J 0 1150000 15.016 D 1122345 I See Footnote Distributed to the partners of Morgenthaler Partners VII, L.P. The shares are held by Morgenthaler Partners VII, LP (MPVII). Ralph E. Christoffersen, was a director of Threshold Pharmaceuticals, Inc., until he resigned from the Board of Directors December 20, 2005, and is a Partner of Morgenthaler Management Partners VII, LLC (MMPVII), the managing partner of MPVII. Dr. Christoffersen shares voting power over the shares with other members of MMPVII. The natural persons who have voting or investment power over the shares held of record of MVPII are Robert C. Bellas, Jr., Greg E. Blonder, James W. Broderick, Ralph E. Christoffersen, Andrew S. Lanza, Theodore A. Laufik, Paul H. Levine, Gary R. Little, John D. Lutsi, Gary J. Morgenthaler, Robert D. Pavey, G. Gary Shaffer and Peter G. Taft. Dr. Christoffersen disclaims beneficial ownership of the shares held by MPVII except to the extend of his pecuniary interest therein. Theodore A. Laufik 2006-03-02