GLAUKOS Corp — Insider Transactions
Form 4 filings by directors, officers, and 10%+ shareholders
SEC rules require corporate insiders — including directors, executive officers, and any shareholder owning more than 10% of a company's shares — to report changes in their ownership within two business days of a transaction. These disclosures are filed as Form 4. Open-market purchases (code P) are generally considered the most meaningful signal, as insiders are spending their own money.
| Insider | Title | Type | Shares | Price | Value | Owns After | Date |
|---|---|---|---|---|---|---|---|
| Navratil Tomas | CHIEF DEVELOPMENT OFFICER | Tax Withholding | 510 | $114.24 | $58,262 | 77,451 | Dec 30, 2025 |
| Burns Thomas William | CHAIRMAN & CEO | Tax Withholding | 1,098 | $114.24 | $125,436 | 153,775 | Dec 30, 2025 |
| Burns Thomas William | CHAIRMAN & CEO | Award / Grant | 4,168 | — | — | 154,873 | Dec 11, 2025 |
| Navratil Tomas | CHIEF DEVELOPMENT OFFICER | Award / Grant | 2,054 | — | — | 77,961 | Dec 11, 2025 |
| Kliman Gilbert H | — | Sale | 5,000 | $107.27 | $536,350 | 34,905 | Dec 9, 2025 |
| Thurman Alex R. | SVP & CHIEF FINANCIAL OFFICER | Sale | 315 | $105.00 | $33,075 | 50,488 | Nov 25, 2025 |
| Gilliam Joseph E | PRESIDENT & COO | Sale | 19,340 | $90.00 | $1,740,600 | 92,366 | Nov 18, 2025 |
| Gilliam Joseph E | PRESIDENT & COO | Tax Withholding | 1,056 | $84.69 | $89,433 | 111,706 | Sep 23, 2025 |
| Burns Thomas William | CHAIRMAN & CEO | Tax Withholding | 4,059 | $84.69 | $343,757 | 150,705 | Sep 23, 2025 |
| Navratil Tomas | CHIEF DEVELOPMENT OFFICER | Sale | 23 | $82.79 | $1,904 | 76,884 | Sep 22, 2025 |
| Navratil Tomas | CHIEF DEVELOPMENT OFFICER | Award / Grant | 1,948 | — | — | 77,417 | Sep 19, 2025 |
| Burns Thomas William | CHAIRMAN & CEO | Award / Grant | 15,417 | — | — | 155,862 | Sep 19, 2025 |
| Gilliam Joseph E | PRESIDENT & COO | Award / Grant | 3,884 | — | — | 112,762 | Sep 18, 2025 |
| Navratil Tomas | CHIEF DEVELOPMENT OFFICER | Sale | 1,948 | $88.61 | $172,612 | 75,469 | Sep 11, 2025 |
| Hoffmeister David F | — | Option Exercise | 25,000 | $32.00 | $800,000 | 31,918 | Jun 11, 2025 |
| Hoffmeister David F | — | Award / Grant | 557 | — | — | 4,810 | May 29, 2025 |
| Torres Denice | — | Award / Grant | 461 | — | — | 19,603 | May 29, 2025 |
| Kliman Gilbert H | — | Award / Grant | 461 | — | — | 32,797 | May 29, 2025 |
| WEN LEANA | — | Award / Grant | 461 | — | — | 18,708 | May 29, 2025 |
| Gilliam Joseph E | PRESIDENT & COO | Tax Withholding | 1,057 | $96.97 | $102,497 | 108,711 | May 28, 2025 |
| Navratil Tomas | CHIEF DEVELOPMENT OFFICER | Tax Withholding | 483 | $96.97 | $46,837 | 80,611 | May 27, 2025 |
| Burns Thomas William | CHAIRMAN & CEO | Tax Withholding | 4,059 | $96.97 | $393,601 | 140,445 | May 27, 2025 |
| Burns Thomas William | CHAIRMAN & CEO | Tax Withholding | 1,098 | $88.24 | $96,888 | 144,504 | May 7, 2025 |
| Navratil Tomas | CHIEF DEVELOPMENT OFFICER | Tax Withholding | 510 | $88.24 | $45,002 | 81,094 | May 7, 2025 |
| Thurman Alex R. | SVP & CHIEF FINANCIAL OFFICER | Tax Withholding | 2,484 | $97.09 | $241,172 | 50,636 | Apr 21, 2025 |
| Burns Thomas William | CHAIRMAN & CEO | Tax Withholding | 7,957 | $97.09 | $772,545 | 145,602 | Apr 21, 2025 |
| Navratil Tomas | CHIEF DEVELOPMENT OFFICER | Tax Withholding | 510 | $98.42 | $50,194 | 82,088 | Apr 1, 2025 |
| Gilliam Joseph E | PRESIDENT & COO | Tax Withholding | 1,922 | $97.09 | $186,607 | 109,768 | Apr 1, 2025 |
| Burns Thomas William | CHAIRMAN & CEO | Tax Withholding | 1,098 | $98.42 | $108,065 | 157,618 | Apr 1, 2025 |
| Thurman Alex R. | SVP & CHIEF FINANCIAL OFFICER | Tax Withholding | 311 | $97.09 | $30,195 | 53,120 | Apr 1, 2025 |
| Navratil Tomas | CHIEF DEVELOPMENT OFFICER | Tax Withholding | 5,112 | $107.61 | $550,102 | 84,428 | Mar 25, 2025 |
| Thurman Alex R. | SVP & CHIEF FINANCIAL OFFICER | Sale | 1,059 | $106.56 | $112,847 | 53,892 | Mar 25, 2025 |
| Burns Thomas William | CHAIRMAN & CEO | Tax Withholding | 1,971 | $107.61 | $212,099 | 166,184 | Mar 25, 2025 |
| Gilliam Joseph E | PRESIDENT & COO | Tax Withholding | 13,429 | $107.61 | $1,445,095 | 114,581 | Mar 25, 2025 |
| Navratil Tomas | CHIEF DEVELOPMENT OFFICER | Award / Grant | 1,948 | — | — | 74,385 | Mar 17, 2025 |
| Gilliam Joseph E | PRESIDENT & COO | Tax Withholding | 1,028 | $102.19 | $105,051 | 128,010 | Mar 13, 2025 |
| Burns Thomas William | CHAIRMAN & CEO | Award / Grant | 15,113 | — | — | 130,572 | Mar 13, 2025 |
| Thurman Alex R. | SVP & CHIEF FINANCIAL OFFICER | Tax Withholding | 489 | $102.19 | $49,971 | 59,795 | Mar 13, 2025 |
| Foley Mark J | — | Sale | 20,687 | $120.72 | $2,497,335 | 54,249 | Feb 26, 2025 |
| Navratil Tomas | CHIEF DEVELOPMENT OFFICER | Sale | 3,416 | $147.14 | $502,630 | 72,437 | Feb 14, 2025 |
| Navratil Tomas | CHIEF DEVELOPMENT OFFICER | Tax Withholding | 1,185 | $149.68 | $177,371 | 75,853 | Jan 6, 2025 |
| Foley Mark J | — | Award / Grant | 2,108 | — | — | 57,221 | Jan 2, 2025 |
| Stapley Marc | — | Award / Grant | 2,108 | — | — | 36,722 | Jan 2, 2025 |
| WEISNER AIMEE S | — | Award / Grant | 2,108 | — | — | 19,163 | Jan 2, 2025 |
| Burns Thomas William | CHAIRMAN & CEO | Tax Withholding | 549 | $151.16 | $82,987 | 85,858 | Dec 20, 2024 |
| Gilliam Joseph E | PRESIDENT & COO | Tax Withholding | 964 | $138.93 | $133,929 | 101,205 | Dec 20, 2024 |
| Navratil Tomas | CHIEF DEVELOPMENT OFFICER | Tax Withholding | 255 | $151.16 | $38,546 | 77,038 | Dec 20, 2024 |
| Gilliam Joseph E | PRESIDENT & COO | Sale | 2,036 | $149.54 | $304,463 | 103,461 | Dec 20, 2024 |
| Kliman Gilbert H | — | Option Exercise | 10,000 | $32.00 | $320,000 | 42,336 | Dec 20, 2024 |
| Kliman Gilbert H | — | Sale | 2,000 | $144.01 | $288,020 | 32,336 | Dec 11, 2024 |