Thomas William Burns - Sep 23, 2025 Form 4 Insider Report for GLAUKOS Corp (GKOS)

Role
CHAIRMAN & CEO, Director
Signature
Diana Scherer, Attorney-in-Fact
Stock symbol
GKOS
Transactions as of
Sep 23, 2025
Transactions value $
-$343,757
Form type
4
Date filed
9/24/2025, 06:52 PM
Previous filing
Sep 22, 2025
SEC
View on sec.gov

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
Burns Thomas William CHAIRMAN & CEO, Director C/O GLAUKOS CORPORATION, ONE GLAUKOS WAY, ALISO VIEJO Diana Scherer, Attorney-in-Fact 2025-09-24 0001644557

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction GKOS Common Stock Tax liability -$344K -4.06K -2.62% $84.69 151K Sep 23, 2025 Direct F1, F2
holding GKOS Common Stock 894K Sep 23, 2025 Through the Burns Family Trust
holding GKOS Common Stock 238K Sep 23, 2025 Through the Burns Annuity Trust
holding GKOS Common Stock 120K Sep 23, 2025 Through the Burns Charitable Remainder Trust
holding GKOS Common Stock 100K Sep 23, 2025 Through the Thomas W. Burns Irrevocable Trust
holding GKOS Common Stock 100K Sep 23, 2025 Through the Janet M. Burns Irrevocable Trust
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
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 18, 2021.
F2 Includes 87,537 restricted stock units that have not yet vested or been delivered to the Reporting Person.