11 insiders reported 196 Form 4 transactions for GLAUKOS Corp (GKOS) over the past 18 months (most recent 2026-08-20). Recent activity: Kliman Gilbert H (Director) Buy 2,500 shares, Kliman Gilbert H (Director) Sell 2,500 shares, Gilliam Joseph E (PRESIDENT & COO) Buy 10,000 shares, Gilliam Joseph E (PRESIDENT & COO) Buy 20,000 shares, Gilliam Joseph E (PRESIDENT & COO) Buy 20,000 shares. Source: SEC Form 4.
| Date | Insider | Title | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-08-20 | Kliman Gilbert H | Director | Buy | 2,500 | $64,425 |
| 2026-08-20 | Kliman Gilbert H | Director | Sell | 2,500 | $475,000 |
| 2026-08-13 | Gilliam Joseph E | PRESIDENT & COO | Buy | 10,000 | $484,600 |
| 2026-08-13 | Gilliam Joseph E | PRESIDENT & COO | Buy | 20,000 | $1.1M |
| 2026-08-13 | Gilliam Joseph E | PRESIDENT & COO | Buy | 20,000 | $1.1M |
| 2026-08-13 | Gilliam Joseph E | PRESIDENT & COO | Buy | 10,000 | $484,600 |
| 2026-08-13 | Gilliam Joseph E | PRESIDENT & COO | Sell | 27,963 | $5.0M |
| 2026-08-13 | Gilliam Joseph E | PRESIDENT & COO | Sell | 32,037 | $5.8M |
| 2026-08-11 | Thurman Alex R. | SVP & CHIEF FINANCIAL OFFICER | Buy | 20,000 | $676,200 |
| 2026-08-11 | Thurman Alex R. | SVP & CHIEF FINANCIAL OFFICER | Sell | 20,000 | $3.6M |
| 2026-08-03 | WEN LEANA | Director | Sell | 525 | $88,006 |
| 2026-07-21 | Thurman Alex R. | SVP & CHIEF FINANCIAL OFFICER | Sell | 10,000 | $1.6M |
| 2026-07-21 | Thurman Alex R. | SVP & CHIEF FINANCIAL OFFICER | Buy | 10,000 | $386,800 |
| 2026-07-13 | Thurman Alex R. | SVP & CHIEF FINANCIAL OFFICER | Buy | 10,000 | $386,800 |
| 2026-07-13 | Thurman Alex R. | SVP & CHIEF FINANCIAL OFFICER | Sell | 10,000 | $1.6M |
| 2026-07-08 | Navratil Tomas | CHIEF DEVELOPMENT OFFICER | Sell | 716 | $99,567 |
| 2026-07-08 | Thurman Alex R. | SVP & CHIEF FINANCIAL OFFICER | Buy | 10,000 | $386,800 |
| 2026-07-08 | Thurman Alex R. | SVP & CHIEF FINANCIAL OFFICER | Sell | 10,000 | $1.5M |
| 2026-06-29 | Burns Thomas William | CHAIRMAN & CEO | Sell | 4,059 | $578,692 |
| 2026-06-29 | Gilliam Joseph E | PRESIDENT & COO | Sell | 1,056 | $150,554 |
| 2026-06-29 | Navratil Tomas | CHIEF DEVELOPMENT OFFICER | Sell | 483 | $68,861 |
| 2026-06-18 | Navratil Tomas | CHIEF DEVELOPMENT OFFICER | Sell | 1,537 | $200,855 |
| 2026-06-01 | WEISNER AIMEE S | Director | Buy | 1,878 | $0 |
| 2026-06-01 | Kliman Gilbert H | Director | Buy | 1,878 | $0 |
| 2026-06-01 | Hoffmeister David F | Director | Buy | 1,878 | $0 |
Source: SEC Form 4 filings · as of 2026-08-20