Gilliam Joseph E 4

What Happened Joseph E. Gilliam, President and COO of GLAUKOS Corp (GKOS), exercised options and sold shares on January 21, 2026. He exercised 4,502 option shares at an exercise price of $55.18 (cost $248,420) and immediately sold those 4,502 shares in the market at a weighted-average price of $124.65, producing proceeds of $561,174. The filing also reports the disposition/conversion of two additional derivative tranches (2,602 and 1,900 shares) reported with $0 per-share cash proceeds; these represent portions of previously granted option awards subject to multi-year performance vesting.

Key Details

• Transaction date: January 21, 2026.
• Option exercise: 4,502 shares exercised at $55.18/share (total exercise cost $248,420).
• Sale: 4,502 shares sold at a weighted-average price of $124.65/share (total proceeds $561,174); trade prices ranged $124.47–$124.75 per footnote.
• Additional derivative items: 2,602 and 1,900 shares reported as disposed at $0 (relate to performance-based option tranches granted March 24, 2022).
• Plan disclosure: Both the sales and the option exercises were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on June 11, 2025.
• Unvested awards: Filing notes 62,605 restricted stock units that have not yet vested or been delivered to the reporting person.
• Filing timeliness: Reported on Jan 23, 2026 for a Jan 21 transaction — appears timely (Form 4 is due within two business days).

Context This was a same-day exercise-and-sell transaction under a pre-established 10b5-1 plan (exercise executed and shares sold that day), which is commonly used to automate insider selling and avoid questions about timing. The additional zero-price derivative entries reflect conversion/settlement of previously granted performance-based option tranches rather than a cash sale. As with all insider filings, these are factual disclosures and do not by themselves indicate the reporting person's future view of the company.