X0303 4 2009-08-14 0 0001411861 MAKO Surgical Corp. MAKO 0001419187 Skyline Venture Partners V LP 525 UNIVERSITY AVE. PALO ALTO CA 94301 0 0 1 0 0001434887 Skyline Venture Management V, LLC 525 UNIVERSITY AVE. PALO ALTO CA 94301 0 0 1 0 0001296771 Freund John Gordon 525 UNIVERSITY AVE. PALO ALTO CA 94301 1 0 1 0 Common Stock 2009-08-14 4 P 0 758000 7.25 A 3195249 I See Footnote Shares are held by Skyline Venture Partners V, L.P. ("SVP V"). Skyline Venture Management V, LLC ("SVM V") is the sole general partner of SVP V, has sole voting and investment control over the respective shares owned by SVP V, and may be deemed to own beneficially the shares held by SVP V. SVM V, however, owns no securities of the Issuer directly. John G. Freund ("Freund") is the sole Managing Director of SVM V and has voting and dispositive power over the shares held by SVP V. Freund disclaims beneficial ownership of the shares reported herein, except to the extent of his respective pecuniary interest therein. SKYLINE VENTURE PARTNERS V, L.P. SKYLINE VENTURE MANAGEMENT V, LLC General Partner John G. Freund, Managing Director 2009-08-25