X0306 4 2022-06-02 0 0001192448 GLAUKOS Corp GKOS 0001529196 Foley Mark J C/O GLAUKOS CORPORATION, 229 AVENIDA FABRICANTE SAN CLEMENTE CA 92672 1 0 0 0 Common Stock 2022-06-02 4 A 0 4364 0.00 A 21602 D Represents a grant of restricted stock units that vest in full on the one-year anniversary of the grant date and are payable in an equivalent number of shares of the Issuer's common stock. Includes 9,232 restricted stock units that have not yet vested or been delivered to the Reporting Person. Diana Scherer, Attorney-in-Fact 2022-06-06