Kliman Gilbert H 4

What Happened
Gilbert H. Kliman, a director of GLAUKOS Corp (GKOS), exercised stock options and sold shares on May 11, 2026. He exercised a total of 10,000 option shares (two exercises of 5,000 each) at an exercise price of $24.69 per share (total exercise amount $246,900). Immediately after, 5,000 shares were sold in the open market at $135.00 per share for proceeds of $675,000, and 5,000 shares were surrendered/used in the derivative transaction (valued at $123,450) consistent with covering exercise costs or tax withholding.

Key Details

• Transaction date: May 11, 2026 (reported on Form 4 filed May 13, 2026) — appears timely (filed within 2 business days)
• Exercise details: 10,000 option shares exercised at $24.69 per share (two 5,000-share exercises; total exercise cost $246,900)
• Sale details: 5,000 shares sold on the open market at $135.00 per share; proceeds $675,000
• Surrendered shares: 5,000 shares were disposed in the derivative transaction at $24.69 (value $123,450), likely to cover exercise price/taxes
• Shares owned after transaction: Not specified in the provided summary; filing notes include 2,731 restricted stock units that are unvested or delivery‑deferred (see footnote F1)
• Footnotes: F1 notes RSUs (2,731) unvested or delivery‑deferred; F2 notes the option was granted June 2, 2016 and fully vested one year later

Context
This was an option exercise followed by an immediate partial sale — a common pattern when insiders exercise vested options and sell shares to cover the exercise cost and taxes (often described as a cashless exercise). The options exercised were long‑vested (granted in 2016, fully vested in 2017 per F2). Sales by insiders can be routine (tax/transaction related) and do not by themselves confirm a change in sentiment; purchases generally convey stronger positive signals. For full ownership details and exact beneficial holdings after the transactions, consult the filed Form 4 (Accession 0001293171-26-000004).