Navratil Tomas 4
4 · GLAUKOS Corp · Filed Mar 9, 2026
Research Summary
AI-generated summary of this filing
GLAUKOS (GKOS) CDO Tomas Navratil Sells 361 Shares
What Happened Tomas Navratil, Chief Development Officer of GLAUKOS (GKOS), had 361 shares withheld to satisfy tax withholding obligations related to previously granted restricted stock units. The shares were valued at $112.10 each, for a total of $40,468. This was a tax-withholding disposition (routine), not an open-market sale.
Key Details
- Transaction date: 2026-03-05; Price per share: $112.10; Total value: $40,468.
- Transaction code: F (shares withheld to satisfy tax obligations).
- Footnote F1: Shares were withheld by the issuer upon vesting/delivery of RSUs originally granted on March 24, 2022.
- Footnote F2: The reporting person still has 41,561 restricted stock units that have not yet vested or been delivered.
- Filing: Form 4 filed 2026-03-09; filing appears timely (within required business-day window).
Context This was a standard tax-withholding action tied to RSU vesting (a cashless-like settlement) rather than a discretionary sale. Such transactions are routine and generally reflect tax compliance, not necessarily the insider’s view on the company’s prospects.
Insider Transaction Report
Form 4
GLAUKOS CorpGKOS
Navratil Tomas
CHIEF DEVELOPMENT OFFICER
Transactions
- Tax Payment
Common Stock
[F1][F2]2026-03-05$112.10/sh−361$40,468→ 76,694 total
Footnotes (2)
- [F1]Consists of shares withheld by the Issuer with respect to tax withholding obligations of the Reporting Person upon vesting and delivery of shares of common stock underlying restricted stock units previously granted by the Issuer on March 24, 2022.
- [F2]Includes 41,561 restricted stock units that have not yet vested or been delivered to the Reporting Person.
Signature
Diana Scherer, Attorney-in-Fact|2026-03-09