GKOS SEC Form 4 filings
Glaukos Corp Latest Insider Trading Activity
Over the past 274 days, Glaukos Corp (GKOS) has had 25 total open-market insider transactions represented in the displayed records. The latest displayed record by transaction date reports 3 sales by Navratil Tomas (Glaukos Corp CHIEF DEVELOPMENT OFFICER) totaling 1,527 shares at a weighted-average price of $164.45 per share, with the latest transaction dated October 5, 2026. This page shows up to the 10 most recent SEC Form 4 filing records on a 6-hour delay. Sign up for real-time updates and access to 20 years of historic insider trading data.
Insider Trading For GKOS Charted on Daily Candles. Scroll left or zoom out to load earlier candles (up to 2 years).
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| Ticker | Filing Date | Transaction Date | Company | Insider | Title | Transaction | Trade Count | Shares | Avg. Price | Total Value | Position Size Change | SEC Filing |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 10b5-1: Scheduled Form 4 Transaction GKOS | 2026-10-07 | 2026-10-05 | Glaukos Corp | Navratil Tomas | CHIEF DEVELOPMENT OFFICER | Sell | 3 | 1,527 | $164.45 | $251,120.10 | 2.16% | View Filing |
| 10b5-1: Scheduled Form 4 Transaction GKOS | 2026-09-28 | 2026-09-25 | Glaukos Corp | Navratil Tomas | CHIEF DEVELOPMENT OFFICER | Sell | 4 | 1,615 | $154.28 | $249,158.46 | 2.23% | View Filing |
| 10b5-1: Scheduled Form 4 Transaction GKOS | 2026-09-18 | 2026-09-16 | Glaukos Corp | Navratil Tomas | CHIEF DEVELOPMENT OFFICER | Sell | 7 | 1,457 | $166.92 | $243,203.90 | 1.97% | View Filing |
| Explained M/S: sale activity tied to share conversions or derivative-related share movements. GKOS | 2026-05-18 | 2026-05-14 | Glaukos Corp | Kliman Gilbert H | Director | Sell | 1 | 5,000 | $140.76 | $703,800.00 | 12.34% | View Filing |
| Explained M/S: sale activity tied to share conversions or derivative-related share movements. GKOS | 2026-05-13 | 2026-05-11 | Glaukos Corp | Kliman Gilbert H | Director | Sell | 1 | 5,000 | $135.00 | $675,000.00 | 12.34% | View Filing |
| Unexplained: transactions without an ESPP, DRIP, 10b5-1, tax liability, or Explained M/S tag. GKOS | 2026-05-04 | 2026-05-01 | Glaukos Corp | Wen Leana | Director | Sell | 1 | 1,700 | $143.35 | $243,695.00 | 7.93% | View Filing |
| Unexplained: transactions without an ESPP, DRIP, 10b5-1, tax liability, or Explained M/S tag. GKOS | 2026-05-04 | 2026-05-01 | Glaukos Corp | Gilliam Joseph E | PRESIDENT & COO | Sell | 1 | 19,573 | $143.54 | $2,809,508.42 | 21.05% | View Filing |
| 10b5-1: Scheduled Form 4 Transaction GKOS | 2026-05-04 | 2026-04-30 | Glaukos Corp | Thurman Alex R. | SVP & CHIEF FINANCIAL OFFICER | Sell | 1 | 10,000 | $140.00 | $1,400,000.00 | 18.63% | View Filing |
| 10b5-1: Scheduled Form 4 Transaction GKOS | 2026-04-14 | 2026-04-10 | Glaukos Corp | Navratil Tomas | CHIEF DEVELOPMENT OFFICER | Sell | 4 | 2,093 | $117.62 | $246,175.40 | 0.57% | View Filing |
| 10b5-1: Scheduled Form 4 Transaction GKOS | 2026-01-20 | 2026-01-16 | Glaukos Corp | Burns Thomas William | CHAIRMAN & CEO | Sell | 2 | 275,000 | $115.00 | $31,625,000.00 | 47.21% | View Filing |
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