X0508 4 2026-01-02 0001192448 GLAUKOS Corp GKOS 0001539796 Stapley Marc C/O GLAUKOS CORPORATION ONE GLAUKOS WAY ALISO VIEJO CA 92656 true false false false 0 Common Stock 2026-01-02 4 A 0 727 0 A 37449 D Represents a grant of restricted stock units received by the Reporting Person pursuant to the Issuer's Director Compensation Policy. The units will 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 2,835 restricted stock units that have not vested or been delivered to the Reporting Person, as well as restricted stock units that have vested but delivery of which has been deferred by the Reporting Person. Diana Scherer, Attorney-in-Fact 2026-01-07