GLAUKOS (GKOS) CDO Tomas Navratil Sells Shares

What Happened
Tomas Navratil, Chief Development Officer of GLAUKOS Corp (GKOS), sold a total of 13,744 shares in open-market transactions on August 28, 2026, generating approximately $2,483,104 in proceeds. The sales broke down as: 7,643 shares at a weighted-average $180.25 ($1,377,651), 6,091 shares at a weighted-average $181.19 ($1,103,628), and 10 shares at $182.50 (~$1,825). These were dispositions (sales), which are routinely executed by insiders and do not by themselves indicate the insider’s view of the company.

Key Details

• Transaction date: August 28, 2026 (filed on September 1, 2026 — within the required 2-business-day Form 4 window).
• Prices and execution notes:
  • 7,643 shares — reported $180.25 (F1: executed in multiple trades at $179.69–$180.69; weighted average reported).
  • 6,091 shares — reported $181.19 (F3: executed in multiple trades at $180.71–$181.61; weighted average reported).
  • 10 shares — $182.50.
• Total shares sold: 13,744; approximate total proceeds: $2,483,104.
• Shares/units noted in filing: includes 38,817 restricted stock units that have not yet vested or been delivered to the reporting person (F2). The filing provided does not specify the total beneficial ownership after the sale beyond the unvested RSUs disclosure.
• No 10b5‑1 plan, gift, exercise, or tax-withholding notation was indicated in the provided details.

Context
This was an open-market sale by an executive officer (not a 10% owner). Sales are common for liquidity, diversification, or tax reasons and are generally less informative than insider purchases for signaling conviction. The filing’s footnotes clarify the sales were executed in multiple trades and give the price ranges behind the reported weighted averages; unvested RSUs remain part of the reporting person’s potential future holdings.