X0306 4 2015-06-30 1 0001192448 GLAUKOS Corp GKOS 0001207792 MORE ROBERT J C/O GLAUKOS CORPORATION 26051 MERIT CIRCLE, SUITE 103 LAGUNA HILLS CA 92653 1 0 0 0 Common Stock 2015-06-24 4 P 0 5000 18.00 A 5000 D The shares were purchased by the Reporting Person in the Issuer's initial public offering. Richard L. Harrison, Attorney-in-Fact 2015-06-30