Thomas W. Burns - 02 Apr 2026 Form 4 Insider Report for GLAUKOS Corp (GKOS)

Reporting relationship: CHAIRMAN & CEO, Director
Issuer ticker: GKOS
Reported as of: 02 Apr 2026
Net transaction value: $0
SEC form: 4
Accepted by SEC: 03 Apr 2026, 21:15:59 UTC
Prior SEC filing: 27 Mar 2026
Next SEC filing: 09 Jun 2026
Source filing: View source filing
Reporting owner signature: Diana Scherer, Attorney-in-Fact

Key filing fact

Thomas W. Burns filed Form 4 for GLAUKOS Corp (GKOS) on 03 Apr 2026.

Key facts

This page summarizes Thomas W. Burns's Form 4 filing for GLAUKOS Corp (GKOS).
4 reported transactions and 0 derivative rows are listed below.
Accepted by SEC: 03 Apr 2026, 21:15.

Change

Previous filing in this sequence was filed on 27 Mar 2026.
Current net transaction value: $0.

Research use

This tells you what this filing adds before you inspect full transaction and derivative tables.
You can trace every row back to the original SEC filing document.

Evidence

Filed on Form 4

Ownership activity is grounded in SEC Form 4 disclosures.

View source filing

Reporting Owners (1)

CIK 0001644557 Primary reporting owner

Burns Thomas William

Relationship: CHAIRMAN & CEO, Director
Address: C/O GLAUKOS CORPORATION, ONE GLAUKOS WAY, ALISO VIEJO
Signature: Diana Scherer, Attorney-in-Fact
Signature date: 03 Apr 2026

Reported non-derivative transactions

Shares, units, or other non-derivative securities reported in this filing.

GKOS transaction

Common Stock

Gift

Transaction value
Shares: -180,308
Change %: -68%
Price: $0.000000^*
Shares after: 82,963
Date: 01 Apr 2026
Ownership: Direct
Footnotes: F1, F2

GKOS transaction

Common Stock

Gift

Transaction value
Shares: +180,308
Change %: +19%
Price: $0.000000^*
Shares after: 1,141,593
Date: 01 Apr 2026
Ownership: Through the Burns Family Trust

GKOS transaction

Common Stock

Tax liability

Transaction value
Shares: -2,469
Change %: -3%
Price: $109.60^*
Shares after: 80,494
Date: 02 Apr 2026
Ownership: Direct
Footnotes: F3, F4

GKOS transaction

Common Stock

Tax liability

Transaction value
Shares: -7,468
Change %: -9.3%
Price: $109.60^*
Shares after: 73,026
Date: 02 Apr 2026
Ownership: Direct
Footnotes: F5, F6

GKOS holding

Common Stock

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after: 238,107
Date: 02 Apr 2026
Ownership: Through the Burns Annuity Trust

GKOS holding

Common Stock

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after: 120,000
Date: 02 Apr 2026
Ownership: Through the Burns Charitable Remainder Trust

GKOS holding

Common Stock

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after: 100,000
Date: 02 Apr 2026
Ownership: Through the Thomas W. Burns Irrevocable Trust

GKOS holding

Common Stock

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after: 100,000
Date: 02 Apr 2026
Ownership: Through the Janet M. Burns Irrevocable Trust

^* marks a reported price that did not pass the local price check.

Additional SEC filing notes

Filing notes and footnotes

Explanation of responses 6 footnotes

Footnote F1

The transaction reflects shares transferred from the Reporting Person's direct ownership to the Burns Family Trust.

Footnote F2

Consists of 82,963 restricted stock units that have not yet vested or been delivered to the Reporting Person.

Footnote F3

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.

Footnote F4

Includes 78,274 restricted stock units that have not yet vested or been delivered to the Reporting Person.

Footnote F5

Footnote F6

Includes 64,090 restricted stock units that have not yet vested or been delivered to the Reporting Person.