GLAUKOS Corp 4

Thomas William Burns (Chairman & CEO of Glaukos Corp) had 4,059 shares of common stock withheld for taxes upon RSU vesting, a routine non-open-market disposition of approximately $579,000.

On June 25, 2026, Glaukos Corporation Chairman & CEO Thomas William Burns had 4,059 shares of common stock withheld by the issuer to satisfy tax withholding obligations arising from the vesting and delivery of previously granted restricted stock units (RSUs) dated March 18, 2021. The shares were effectively disposed of at an average price of approximately $142.57 per share, for an implied transaction value of about $579,000, and are coded as a Form 4 transaction type 'F', which is a routine, non-open-market disposition for tax purposes rather than a discretionary sale. Following this transaction, Burns continues to hold a substantial equity position both directly and indirectly through multiple family and trust accounts, including 68,967 shares held directly and additional large stakes through several Burns family-related trusts, along with 56,382 RSUs that remain unvested.

Filing Facts

CIK

1192448

Ticker

GKOS

Form

4

Source Type

sec

Accession

0001644557-26-000024

Alert Tier

5