X0202 4 2006-11-21 0 0001276591 HANSEN MEDICAL INC HNSN 0001162059 HIRSCH RUSSELL C C/O PROSPECT VENTURE PARTNERS 435 TASSO STREET, SUITE 200 PALO ALTO CA 94301 1 0 0 0 Common Stock 2006-11-21 4 C 0 3153217 0.00 A 3153217 I See Footnote Common Stock 2006-11-21 4 C 0 48017 0.00 A 48017 I See Footnote Series A Preferred Stock 2006-11-21 4 C 0 1237405 0.00 D 2006-11-21 Common Stock 1237405 0 I See Footnote Series A Preferred Stock 2006-11-21 4 C 0 18843 0.00 D 2006-11-21 Common Stock 18843 0 I See Footnote Series B Preferred Stock 2006-11-21 4 C 0 900157 0.00 D 2006-11-21 Common Stock 900157 0 I See Footnote Series B Preferred Stock 2006-11-21 4 C 0 13708 0.00 D 2006-11-21 Common Stock 13708 0 I See Footnote Series C Preferred Stock 2006-11-21 4 C 0 1015655 0.00 D 2006-11-21 Common Stock 1015655 0 I See Footnote Series C Preferred Stock 2006-11-21 4 C 0 15466 0.00 D 2006-11-21 Common Stock 15466 0 I See Footnote The shares are owned by Prospect Venture Partners II, L.P. ("PVP II"), which is under common control with Prospect Associates II, L.P. ("PA II"). Prospect Management Co. II, L.L.C. ("PMC II") serves as the sole general partner of PVP II. James B. Tananbaum, M.D., Alexander E. Barkas, Ph.D., David Schnell, M.D., and Russell C. Hirsch, M.D., Ph.D. are the Managing Directors of PMC II. As such, each reporting person shares voting and investment power over the shares held by PVP II and may be deemed to have indirect beneficial ownership of such shares. Each reporting person disclaims beneficial ownership of the shares reported herein, except to the extent of his proportionate pecuniary interest therein. The shares are owned by PA II, which is under common control with PVP II. PMC II serves as the sole general partner of PA II. James B. Tananbaum, M.D., Alexander E. Barkas, Ph.D., David Schnell, M.D., and Russell C. Hirsch, M.D., Ph.D. are the Managing Directors of PMC II. As such, each reporting person shares voting and investment power over the shares held by PA II and may be deemed to have indirect beneficial ownership of such shares. Each reporting person disclaims beneficial ownership of the shares reported herein, except to the extent of his proportionate pecuniary interest therein. The Issuer?s Preferred Stock automatically converted into Common Stock on a one-for-one basis upon the closing of the Issuer?s initial public offering. /s/ Russell C. Hirsch 2006-11-21