Form 4: Glaukos CEO's RSU Vesting Triggers Tax Share Withholding

Glaukos Corporation's Chairman and CEO, Thomas William Burns, reported a routine disposition of 4,059 shares for tax withholding upon the vesting of restricted stock units.

Summary

• Thomas William Burns, Chairman and CEO of Glaukos Corporation (GKOS), reported a transaction on September 23, 2025.
• The transaction involved the disposition of 4,059 shares of common stock at a price of $84.69 per share.
• These shares were withheld by Glaukos Corporation to cover tax withholding obligations for Mr. Burns, following the vesting and delivery of restricted stock units (RSUs) originally granted on March 18, 2021.
• Following this transaction, Mr. Burns directly beneficially owns 150,705 shares of common stock, which includes 87,537 restricted stock units that have not yet vested or been delivered.
• Additionally, Mr. Burns indirectly beneficially owns 1,451,039 shares through various trusts: 893,932 shares via the Burns Family Trust, 238,107 shares via the Burns Annuity Trust, 120,000 shares via the Burns Charitable Remainder Trust, 100,000 shares via the Thomas W. Burns Irrevocable Trust, and 100,000 shares via the Janet M. Burns Irrevocable Trust.

Sentiment

Score: 5

Explanation: The transaction is a routine tax withholding event associated with the vesting of restricted stock units, indicating no discretionary buying or selling by the insider and therefore a neutral impact on sentiment.

Positives

• The vesting of restricted stock units indicates the achievement of performance milestones or tenure, representing a positive compensation event for the executive.

Future Outlook

This filing does not contain any forward-looking statements or guidance regarding the company's future outlook.

Industry Context

This filing details a routine insider compensation event and does not provide information relevant to broader industry trends or competitive analysis.

Stakeholder Impact

• Shareholders: Minimal impact, as this is a routine compensation and tax event. The vesting of RSUs is a standard component of executive compensation, aligning executive interests with shareholder value over time.
• Executive (Thomas William Burns): Realization of compensation from vested restricted stock units, subject to tax obligations.

Key Dates

Recommendation

The filing details a routine tax withholding transaction related to the vesting of restricted stock units for a key executive. This is a non-discretionary event and does not reflect a change in the executive's investment conviction or the company's fundamental outlook, thus not warranting a change in investment recommendation.

Keywords

Glaukos, GKOS, Form 4, Insider Transaction, Thomas William Burns, CEO, Restricted Stock Units, RSU, Tax Withholding, Stock Ownership