SEC Form 4 · accession 0001920053-26-000028
GLAUKOS Corp · GKOS
Statement of changes in beneficial ownership, as filed. Original on EDGAR ↗
Reporting owner
Tomas Navratil
Officer — CHIEF DEVELOPMENT OFFICER
Period of report
Sep 16, 2026
Accepted (ET)
Sep 18, 2026 · 5:32 pm EDT
Rule 10b5-1 plan
yes — trade under a plan
Issuer CIK
0001192448
Table I — non-derivative securities
| Security | Date | Code | Shares | Price | A/D | Owned after | D/I | Nature of ownership |
|---|---|---|---|---|---|---|---|---|
| Common StockF2,F3 | Sep 16, 2026 | S | 103 | $163.20 | D | 73,787 | D | |
| Common StockF4,F3 | Sep 16, 2026 | S | 345 | $164.60 | D | 73,442 | D | |
| Common StockF5,F3 | Sep 16, 2026 | S | 191 | $166.20 | D | 73,251 | D | |
| Common StockF6,F3 | Sep 16, 2026 | S | 460 | $167.32 | D | 72,791 | D | |
| Common StockF7,F3 | Sep 16, 2026 | S | 120 | $168.38 | D | 72,671 | D | |
| Common StockF8,F3 | Sep 16, 2026 | S | 234 | $170.95 | D | 72,437 | D | |
| Common StockF9,F3 | Sep 16, 2026 | S | 4 | $172.00 | D | 72,433 | D |
Table II — derivative securities
No Table II lines on this filing.
Explanation of responses
- F1The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on June 12, 2026.
- F2This transaction was executed in multiple trades at prices ranging from $162.87 to $163.47. 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.
- F3Includes 38,817 restricted stock units that have not yet vested or been delivered to the Reporting Person.
- F4This transaction was executed in multiple trades at prices ranging from $164.40 to $165.26. 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.
- F5This transaction was executed in multiple trades at prices ranging from $165.55 to $166.22. 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.
- F6This transaction was executed in multiple trades at prices ranging from $167.04 to $167.57. 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.
- F7This transaction was executed in multiple trades at prices ranging from $168.37 to $168.38. 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.
- F8This transaction was executed in multiple trades at prices ranging from $170.76 to $171.10. 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.
- F9This transaction was executed in multiple trades at prices ranging from $172.00 to $172.01. 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.