Tomas Navratil, Chief Development Officer of Glaukos Corp, filed a Form 4 on November 3, 2026, disclosing two tax-withholding transactions in common stock that occurred on April 9, 2024.

Key Highlights

  • Reporting person: Tomas Navratil, identified in the filing as Chief Development Officer of Glaukos Corp (NYSE:GKOS).
  • First transaction: 495 shares withheld at $87.61 per share on April 9, 2024, related to vesting of restricted stock units originally granted March 18, 2021.
  • Second transaction: 260 shares withheld at $93.23 per share on April 9, 2024, related to vesting of restricted stock units originally granted March 24, 2022.
  • Transaction code: Both transactions carry code "F," reflecting shares withheld for tax withholding obligations, and are each noted as exempt pursuant to Rule 16b-3.
  • Beneficial ownership following transactions: The filing reports 68,536 shares beneficially owned directly, including 37,328 restricted stock units that have not yet vested or been delivered.

Navratil RSU Vesting and Tax Withholding Details for April 9, 2024

According to the filing, Tomas Navratil, serving as Chief Development Officer at Glaukos Corp, had two separate share-withholding transactions executed on April 9, 2024. Both transactions are classified under transaction code "F," which the filing describes as shares withheld by the issuer to satisfy the reporting person's tax withholding obligations upon vesting and delivery of shares underlying restricted stock units.

The first transaction involved 495 shares disposed of at $87.61 per share. The filing states this relates to restricted stock units previously granted by the issuer on March 18, 2021. Following this transaction, beneficial ownership stood at 68,796 shares, as reported in the filing. The second transaction involved 260 shares disposed of at $93.23 per share, tied to restricted stock units originally granted on March 24, 2022. After this second transaction, the filing reports beneficial ownership of 68,536 shares directly held.

The filing notes that both beneficial ownership figures "reflect the amount of securities beneficially owned as of the date this Form is filed, not the date of the transaction." The final reported figure of 68,536 shares includes 37,328 restricted stock units that, according to the filing, "have not yet vested or been delivered to the Reporting Person." The form was signed by Diana Scherer as Attorney-in-Fact and filed on November 3, 2026.

What Was Disclosed

The filing discloses two Rule 16b-3-exempt tax-withholding transactions by Glaukos Corp's Chief Development Officer, Tomas Navratil, covering 495 and 260 shares of common stock withheld on April 9, 2024, at prices of $87.61 and $93.23, respectively, upon RSU vesting events.