Insider Trading
Current insider transactions (SEC Form 4) — buys and sells by officers, directors, and major shareholders.
| Ticker | Insider | Title | Date | Transaction | Price ($) | Shares | Value ($) | SEC Form 4 |
|---|---|---|---|---|---|---|---|---|
| GKOS | Navratil Tomas | CHIEF DEVELOPMENT OFFICER | 08/28/2026 | Verkauf | 182.50 | 10 | 1,825 | Form 4 |
| GKOS | Navratil Tomas | CHIEF DEVELOPMENT OFFICER | 08/28/2026 | Verkauf | 181.19 | 6,091 | 1,103,628 | Form 4 |
| GKOS | Navratil Tomas | CHIEF DEVELOPMENT OFFICER | 08/28/2026 | Verkauf | 180.25 | 7,643 | 1,377,651 | Form 4 |
| GKOS | Kliman Gilbert H | Director | 08/19/2026 | Verkauf | 190.00 | 2,500 | 475,000 | Form 4 |
| GKOS | Kliman Gilbert H | Director | 08/19/2026 | Optionsausübung | 25.77 | 2,500 | 64,425 | Form 4 |
| GKOS | Gilliam Joseph E | PRESIDENT & COO | 08/11/2026 | Verkauf | 180.49 | 32,037 | 5,782,358 | Form 4 |
| GKOS | Gilliam Joseph E | PRESIDENT & COO | 08/11/2026 | Verkauf | 178.89 | 27,963 | 5,002,301 | Form 4 |
| GKOS | Gilliam Joseph E | PRESIDENT & COO | 08/11/2026 | Optionsausübung | 55.18 | 20,000 | 1,103,600 | Form 4 |
| GKOS | Gilliam Joseph E | PRESIDENT & COO | 08/11/2026 | Optionsausübung | 48.46 | 10,000 | 484,600 | Form 4 |
| GKOS | Thurman Alex R. | SVP & CHIEF FINANCIAL OFFICER | 08/07/2026 | Verkauf | 180.13 | 20,000 | 3,602,600 | Form 4 |
| GKOS | Thurman Alex R. | SVP & CHIEF FINANCIAL OFFICER | 08/07/2026 | Optionsausübung | 33.81 | 20,000 | 676,200 | Form 4 |
| GKOS | Wen Leana | Director | 07/31/2026 | Verkauf | 167.63 | 525 | 88,006 | Form 4 |
| GKOS | Thurman Alex R. | SVP & CHIEF FINANCIAL OFFICER | 07/16/2026 | Verkauf | 160.00 | 10,000 | 1,600,000 | Form 4 |
| GKOS | Thurman Alex R. | SVP & CHIEF FINANCIAL OFFICER | 07/16/2026 | Optionsausübung | 38.68 | 10,000 | 386,800 | Form 4 |
| GKOS | Thurman Alex R. | SVP & CHIEF FINANCIAL OFFICER | 07/09/2026 | Verkauf | 155.00 | 10,000 | 1,550,000 | Form 4 |
| GKOS | Thurman Alex R. | SVP & CHIEF FINANCIAL OFFICER | 07/09/2026 | Optionsausübung | 38.68 | 10,000 | 386,800 | Form 4 |
| GKOS | Thurman Alex R. | SVP & CHIEF FINANCIAL OFFICER | 07/06/2026 | Verkauf | 150.00 | 10,000 | 1,500,000 | Form 4 |
| GKOS | Thurman Alex R. | SVP & CHIEF FINANCIAL OFFICER | 07/06/2026 | Optionsausübung | 38.68 | 10,000 | 386,800 | Form 4 |
| GKOS | Navratil Tomas | CHIEF DEVELOPMENT OFFICER | 07/01/2026 | Verkauf | 139.06 | 716 | 99,567 | Form 4 |
A compact market overview — not investment advice. Source: fundamental data & SEC filings (annual and quarterly reports, 10-K/10-Q).