Thurman Alex R. 4

What Happened
Alex R. Thurman, Chief Financial Officer of Glaukos Corp (GKOS), sold 2,511 shares in an open‑market sale on March 25, 2026 at $106.46 per share for proceeds of $267,321. On the same date he was reported as acquiring/being granted a mix of stock awards and option-related interests: a 3,303-share award (no cash paid) and several derivative awards (8,228; 19,601; and 20,515 shares) tied to previously granted restricted stock units and stock options that were deemed earned after the company met certain operational targets.

Key Details

• Transaction date reported: March 25, 2026; Form 4 filed March 27, 2026 (appears timely; Form 4s are typically due within two business days).
• Sale: 2,511 shares at $106.46 → $267,321; footnote F1: sale executed under a Rule 10b5‑1 trading plan adopted Dec 15, 2025.
• Awards/acquisitions reported as zero cash: 3,303 shares (immediate award) and derivative entries of 8,228; 19,601; and 20,515 shares tied to prior grants.
• Vesting/vesting timing: Certain RSUs/options were earned after the Compensation, Nominating and Governance Committee determined pre‑set operational targets were met on March 25, 2026 (see F3, F5, F7). For at least one RSU award, 50% vests/delivers in March 2026 and 50% in December 2026 (F3). For portions of options, 50% vests in March 2026 and 50% in December 2026 (F6). A new option granted March 25, 2026 has a standard four‑year vesting schedule (25% after 1 year, then monthly over 36 months) (F8).
• Unvested units: filing notes certain amounts of restricted stock units remain unvested/not yet delivered (e.g., 5,230 RSUs per F2 and 8,533 RSUs per F4).
• Shares owned after transaction: not specified in the provided summary of the filing.

Context

• The sale was executed under a pre‑arranged 10b5‑1 plan (F1), which is commonly used by insiders to systematically sell shares and is not necessarily a market signal.
• Several of the reported acquisitions are derivative/earned portions of earlier performance‑based RSU and option grants; those awards became earned when the company met pre‑determined operational targets, triggering vesting schedules rather than an immediate open‑market purchase.
• No indication in the filing that shares were sold immediately upon vesting (i.e., not reported as a cashless exercise); the only open‑market sale disclosed here is the 2,511 shares under the 10b5‑1 plan.