X0306 4 2018-08-06 false 0001192448 GLAUKOS Corp GKOS 0001644557 Burns Thomas William C/O GLAUKOS CORPORATION 229 AVENIDA FABRICANTE SAN CLEMENTE CA 92672 true true false false Chief Executive Officer Common Stock 2018-08-06 4 M false 98885.00 1.925 A 376125.00 I Through the Burns Family Trust Common Stock 2018-08-06 4 S false 19445.00 37.20 D 356680.00 I Through the Burns Family Trust Common Stock 2018-08-06 4 S false 45449.00 38.32 D 311231.00 I Through the Burns Family Trust Common Stock 2018-08-06 4 S false 33991.00 39.22 D 277240.00 I Through the Burns Family Trust Common Stock 2018-08-07 4 M false 21755.00 1.925 A 298995.00 I Through the Burns Family Trust Common Stock 2018-08-07 4 M false 10320.00 3.975 A 309315.00 I Through the Burns Family Trust Common Stock 2018-08-07 4 M false 19040.00 1.05 A 328355.00 I Through the Burns Family Trust Common Stock 2018-08-07 4 S false 39099.00 39.27 D 289256.00 I Through the Burns Family Trust Common Stock 2018-08-07 4 S false 12016.00 40.25 D 277240.00 I Through the Burns Family Trust Common Stock 238107.00 I Through the Burns Annuity Trust Common Stock 120000.00 I Through the Burns Charitable Remainder Trust Common Stock 100000.00 I Through the Janet M. Burns Irrevocable Trust Common Stock 100000.00 I Through the Thomas W. Burns Irrevocable Trust Stock Option (Right to Buy) 1.925 2018-08-06 4 M false 98885.00 0.00 D 2020-01-26 Common Stock 98885.00 21755.00 D Stock Option (Right to Buy) 3.975 2018-08-07 4 M false 10320.00 0.00 D 2021-01-27 Common Stock 10320.00 317680.00 D Stock Option (Right to Buy) 1.925 2018-08-07 4 M false 21755.00 0.00 D 2020-01-26 Common Stock 21755.00 0.00 D Stock Option (Right to Buy) 1.05 2018-08-07 4 M false 19040.00 0.00 D 2020-04-22 Common Stock 19040.00 0.00 D These trades were made pursuant to a Rule 10b5-1 trading plan with pre-determined share amounts and prices. This transaction was executed in multiple trades at prices ranging from $36.94 to $37.89. The price reported above reflects the weighted average price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected. This transaction was executed in multiple trades at prices ranging from $37.94 to $38.93 The price reported above reflects the weighted average price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected. This transaction was executed in multiple trades at prices ranging from $38.95 to $39.75. The price reported above reflects the weighted average price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected. This transaction was executed in multiple trades at prices ranging from $39.00 to $39.99. The price reported above reflects the weighted average price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected. This transaction was executed in multiple trades at prices ranging from $40.00 to $40.54. The price reported above reflects the weighted average price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected. This option was granted on January 26, 2010, has a four-year vesting schedule in which 25% vested on the first year anniversary date of the grant and the remainder vested in equal monthly installments for 36 months thereafter, such that the stock option vests in full on the four-year anniversary of the grant date. This option was granted on January 27, 2011, has a four-year vesting schedule in which 25% vested on the first year anniversary date of the grant and the remainder vested in equal monthly installments for 36 months thereafter, such that the stock option vests in full on the four-year anniversary of the grant date. This option was granted on April 22, 2010, has a four-year vesting schedule in which 25% vested on the first year anniversary date of the grant and the remainder vested in equal monthly installments for 36 months thereafter, such that the stock option vests in full on the four-year anniversary of the grant date. /s/ Robert Davis, Attorney-in-Fact 2018-08-07