Gilliam Joseph E 4

What Happened

• Joseph E. Gilliam, President and Chief Operating Officer of GLAUKOS (GKOS), exercised options on Jan 22, 2026 to acquire 10,498 shares at $55.18 each (total exercise cost $579,280). On the same day he sold 10,498 shares in open market transactions for a combined $1,340,380 (weighted-average prices in the $125.56–$129.81 range).
• The Form 4 also reports disposals of 10,498 shares in connection with the option exercise at $55.18 (totaling $579,280). This is consistent with a sell-to-cover or net settlement related to the exercise. Sales and exercises were carried out under a Rule 10b5-1 trading plan.

Key Details

• Transaction date: January 22, 2026 (filed Jan 26, 2026 — appears timely).
• Exercise: 10,498 shares at $55.18 each = $579,280.
• Open-market sales: 10,498 shares for $1,340,380 (four trades; weighted-average prices reported; trade price ranges per footnotes: $125.56–126.55, $126.62–127.58, $127.83–128.77, $128.98–129.81).
• Derivative disposals: 7,398 and 3,100 shares (total 10,498) at $55.18, totaling $579,280 (reported as derivative transactions).
• Shares owned after the reported transactions: not specified in the provided filing excerpt. Filing notes include 62,605 restricted stock units that have not vested or been delivered.
• Notable footnotes: sales and option exercises were effected pursuant to a Rule 10b5-1 trading plan adopted June 11, 2025; option awards tied to performance goals (grants dated March 24, 2022); weighted-average price details available upon request to the SEC staff.

Context

• The filing shows option exercise and same-day share dispositions — a common pattern where executives exercise options and immediately sell some or all shares to cover exercise costs and/or taxes (often called a sell-to-cover or cashless exercise). The overall activity generated net proceeds from open-market sales (~$1.34M) while the reported derivative disposals match the exercise value ($579k).
• This is a factual report of transactions; it does not by itself indicate the insider’s personal view of the company.