Glaukos (GKOS) CDO Tomas Navratil Sells Shares

What Happened Tomas Navratil, Chief Development Officer of Glaukos Corp (GKOS), sold a total of 1,615 shares in open-market transactions on September 25, 2026, reporting four separate disposals. The trades were: 167 shares at $151.70 ($25,334), 136 shares at $152.71 ($20,769), 229 shares at $154.24 ($35,321), and 1,083 shares at $154.88 ($167,735). Combined proceeds were about $249,159. These were sales (not purchases) and were executed under a pre-established trading plan.

Key Details

• Transaction date: September 25, 2026 (reported on Form 4 filed Sept 28, 2026); transaction code S = Sale. Filing appears timely.
• Aggregate shares sold: 1,615; aggregate proceeds ≈ $249,159.
• Per-trade notes: several trades were executed as multiple fills; reported prices are weighted averages (ranges provided in footnotes: $151.23–152.09; $152.45–153.44; $153.48–154.46; $154.49–155.46). The filer offers to provide the detailed per-trade breakdown on request.
• Plan/authorization: Sales were effected pursuant to a Rule 10b5-1 trading plan adopted June 12, 2026 (footnote F1).
• Shares owned after transaction: the filing references 38,817 restricted stock units that have not yet vested (footnote F3); the total post-sale share count is not specified in the excerpted data.

Context

• Because these sales were done under a 10b5-1 plan, they are generally viewed as pre-planned disposals rather than contemporaneous, discretionary insider trades. Sales do not necessarily indicate negative views about the company; they often reflect routine liquidity planning or diversification.
• Retail investors typically watch purchases more closely for potential positive signals. This filing documents routine, planned insider selling with weighted-average pricing and standard disclosures.