GLAUKOS Corp — Director's Dealing 2026

Jan 20, 2026

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: GLAUKOS Corp (GKOS)
CIK: 0001192448
Period of Report: 2026-01-08

Reporting Person: Burns Thomas William (N/A)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2026-01-08	Common Stock	M	88055	$16.49	Acquired	241830	Direct
2026-01-08	Common Stock	S	88055	$115	Disposed	153775	Direct
2026-01-16	Common Stock	M	186945	$16.49	Acquired	340720	Direct
2026-01-16	Common Stock	S	186945	$115	Disposed	153775	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2026-01-08	Stock Option (Right to Buy)	$16.49	M	88055	Disposed	2026-03-10	Common Stock (88055)	Direct
2026-01-16	Stock Option (Right to Buy)	$16.49	M	186945	Disposed	2026-03-10	Common Stock (186945)	Direct

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock	893932	Indirect
Common Stock	238107	Indirect
Common Stock	120000	Indirect
Common Stock	100000	Indirect
Common Stock	100000	Indirect

Footnotes

F1: Includes 89,621 restricted stock units that have not yet vested or been delivered to the Reporting Person.

F2: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on June 10, 2025 with respect to options that expire on March 10, 2026.

F3: The option exercises in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on June 10, 2025 with respect to options that expire on March 10, 2026.

F4: This option was granted on March 10, 2016 and had a four-year vesting schedule in which 25% vested on the first anniversary of the grant date and the
remainder vested in equal monthly installments for 36 months thereafter, such that the stock option vested in full on the four-year anniversary of the grant
date.