Burns Thomas William 4

What Happened Thomas W. Burns, Chairman & CEO and a director of Glaukos Corp (GKOS), had 2,744 shares disposed on March 24, 2026 as part of tax withholding related to the vesting/delivery of previously granted restricted stock units (RSUs). The shares were withheld at an effective price of $105.23 per share, for a total value of $288,751. This was a withholding/tax disposition (not an open‑market sale or purchase).

Key Details

• Transaction date: March 24, 2026; Form 4 filed March 25, 2026 (timely).
• Price: $105.23 per share; Shares withheld/disposed: 2,744; Total value: $288,751.
• Nature of transaction: Tax withholding upon RSU vesting (transaction code F). This is a disposition to cover tax obligations, not a voluntary market sale signaling sentiment.
• Shares owned after transaction: Not specified in the excerpt; filing notes 59,399 restricted stock units remain unvested/not yet delivered to Mr. Burns (footnote F2).
• Footnotes: F1 — shares withheld by issuer to satisfy the reporting person’s tax withholding obligations on RSUs granted March 24, 2022. F2 — 59,399 RSUs still unvested/not delivered.

Context This disposition reflects employer withholding to cover taxes on vested RSUs (a routine administrative event). It does not represent a market sale decision by the insider and should be interpreted differently from open‑market sales or purchases.