X0306 4 2022-06-02 0 0001192448 GLAUKOS Corp GKOS 0001227308 WEISNER AIMEE S 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 22706 D Common Stock 5000 I Through the Saeman-Weisner Family Trust Common Stock 2000 I Through the Weisner Saeman Family Irrevocable Trust 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 8,201 restricted stock units that have not yet vested or been delivered to the Reporting Person, and 980 restricted stock units that have vested but have not yet been delivered to the Reporting Person based upon the Reporting Person's election to defer delivery. Diana Scherer, Attorney-in-Fact 2022-06-06