X0306 4 2015-06-26 0 0001192448 GLAUKOS Corp GKOS 0001341169 Frazier Healthcare V, LP 601 UNION STREET SUITE 3200 SEATTLE WA 98101 0 0 1 0 0001346944 FHM V, LLC 601 UNION STREET SUITE 3200 SEATTLE WA 98101 0 0 1 0 0001531105 Every Nathan R 601 UNION STREET SUITE 3200 SEATTLE WA 98101 0 0 1 0 0001018534 FRAZIER ALAN D 601 UNION STREET SUITE 3200 SEATTLE WA 98101 0 0 1 0 0001344203 Naini Nader J 601 UNION STREET SUITE 3200 SEATTLE WA 98101 0 0 1 0 0001365617 Heron Patrick J 601 UNION STREET SUITE 3200 SEATTLE WA 98101 0 0 1 0 0001341382 Topper James N 601 UNION STREET SUITE 3200 SEATTLE WA 98101 0 0 1 0 0001346948 FHM V, LP 601 UNION STREET SUITE 3200 SEATTLE WA 98101 0 0 1 0 Series D Convertible Preferred Stock 2015-06-26 4 X 0 24705 7.65 A Common Stock 24705 674510 D Series D Convertible Preferred Stock Warrant (right to buy) 7.65 2015-06-26 4 X 0 24705 0 D 2010-09-15 2017-09-15 Common Stock 24705 0 D The shares of Series D Convertible Preferred Stock, will automatically convert into shares of common stock on a 1:1 basis immediately prior to the consummation of Issuer's initial public offering ("IPO") and have no expiration date. This report is filed jointly by Frazier Healthcare V, L.P., a Delaware limited partnership ("FH-V''), FHM V, L.P., a Delaware limited partnership ("FHM V L.P.''), FHM V LLC a Delaware limited liability company ("FHM V LLC''), Nathan Every, Alan Frazier, Nader Naini, Patrick Heron and James Topper. Shares and warrants are held directly by FH-V. FHM V, L.P. serves as the sole general partner of FH-V and owns no shares directly. FHM V LLC serves as the sole general partner of FHM V, L.P. and owns no shares directly. Nathan Every, Alan Frazier, Nader Naini, Patrick Heron and James Topper are members of FHM V, LLC and share voting and dispositive power over the shares held by FH-V; however, they disclaim beneficial ownership of the shares held by FH-V except to the extent of their pecuniary interests therein. If not exercised prior to the IPO, the warrants would have automatically net exercised immediately prior to the IPO at the IPO price per share. Frazier Healthcare V, L.P., By: FHM V, L.P., its general partner, By FHM V, LLC, its general partner, By: /s/ Steve Bailey, Chief Financial Officer 2015-06-29 FHM V, L.P., By FHM V, LLC, its general partner, By: /s/ Steve Bailey, Chief Financial Officer 2015-06-29 FHM V, LLC, By: /s/ Steve Bailey, Chief Financial Officer 2015-06-29 /s/ Nathan Every 2015-06-29 /s/ Alan Frazier 2015-06-29 /s/ Nader Naini 2015-06-29 /s/ Patrick Heron 2015-06-29 /s/ James Topper 2015-06-29