Navratil Tomas 4

What Happened Tomas Navratil, Chief Development Officer of Glaukos Corp (GKOS), sold 716 shares on July 1, 2026 at $139.06 per share, for total proceeds of approximately $99,567. This was a sale (not a purchase or option exercise) executed pursuant to a pre-established Rule 10b5-1 trading plan.

Key Details

• Transaction date and price: July 1, 2026 — 716 shares sold at $139.06 each.
• Total value: Approximately $99,567.
• Footnotes: The sale was effected under a Rule 10b5-1 trading plan adopted March 12, 2026 (footnote F1). Filing also notes the Reporting Person has 38,817 restricted stock units that have not vested or been delivered (footnote F2).
• Holdings after transaction: The provided data does not specify total share ownership after this sale; it does note the 38,817 unvested RSUs.
• Timeliness: The Form 4 was filed July 8, 2026 for a July 1 transaction — this appears to be later than the usual 2-business-day reporting window for Section 16 insiders.

Context

• Sales executed under a 10b5-1 plan are pre-set and often designed to avoid questions about timing; they don’t necessarily signal a change in the insider’s view of the company. For retail investors, purchases typically carry more interpretive weight than routine sales.