Gilliam Joseph E 4

What Happened Joseph E. Gilliam, President & COO of GLAUKOS Corp (GKOS), had 1,189 shares of common stock withheld by the company to cover tax withholding obligations tied to vested restricted stock units (RSUs). The shares were valued at $98.94 each, for a total of $117,640. This was a tax-withholding disposition (not an open-market sale or a purchase).

Key Details

• Transaction date: 2026-03-16; filing date: 2026-03-19.
• Shares withheld/disposed: 1,189 shares at $98.94 per share; total value $117,640.
• Footnote F1: Shares were withheld by the issuer to satisfy the reporting person’s tax withholding obligations upon vesting/delivery of RSUs granted March 14, 2024.
• Footnote F2: Filing notes 53,986 RSUs remain unvested and have not yet been delivered.
• Post-transaction total holdings of common stock are not specified in the filing.

Context Withholding shares to cover tax on vested RSUs is a routine administrative action and does not necessarily signal a trade decision; it is treated as a disposition for reporting purposes. The filing documents the withholding from an RSU vesting event and indicates a large number of remaining unvested RSUs (53,986). Purchases or voluntary open-market sales tend to carry more direct signals about insider sentiment than tax-withholding dispositions.