Burns Thomas William 4

What Happened Thomas William Burns, Chairman & CEO (also a director) of GLAUKOS Corp (GKOS), had 1,098 shares withheld to satisfy tax-withholding obligations tied to vested restricted stock units. The shares were valued at $112.10 each, for a total of approximately $123,086. This was a tax-withholding disposition (transaction code F), not an open-market sale.

Key Details

• Transaction date: March 5, 2026; Price: $112.10 per share; Total value: ~$123,086.
• Transaction type: F — shares withheld to cover tax liabilities upon RSU vesting (cashless/tax-withholding action).
• Filing date (Form 4): March 9, 2026 — filed on the second business day after the transaction (timely).
• Shares owned after the transaction: Not specified in the provided filing data.
• Footnotes:
  • F1: Shares were withheld by the issuer to satisfy the Reporting Person’s tax withholding obligations upon vesting and delivery of RSUs originally granted on March 24, 2022.
  • F2: The reporting includes 79,828 restricted stock units that have not yet vested or been delivered to the Reporting Person.

Context Tax-withholding dispositions for vested RSUs are routine and do not necessarily indicate insider sentiment about the company’s prospects. This filing documents the administrative withholding of shares to cover taxes rather than an intentional market sale or purchase.