GLAUKOS Corp — Director's Dealing 2026

Feb 23, 2026

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: GLAUKOS Corp (GKOS)
CIK: 0001192448
Period of Report: 2026-02-19

Reporting Person: WEISNER AIMEE S (N/A)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2026-02-19	Common Stock	G	980	—	Disposed	18806	Direct
2026-02-19	Common Stock	G	980	—	Acquired	29505	Indirect
2026-02-19	Common Stock	M	15000	$24.69	Acquired	33806	Direct
2026-02-19	Common Stock	S	2153	$115.69	Disposed	31653	Direct
2026-02-19	Common Stock	S	5242	$116.64	Disposed	26411	Direct
2026-02-19	Common Stock	S	1134	$117.33	Disposed	25277	Direct
2026-02-19	Common Stock	S	6471	$118.56	Disposed	18806	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2026-02-19	Stock Option (Right to Buy)	$24.69	M	15000	Disposed	2026-06-02	Common Stock (15000)	Direct

Footnotes

F1: The transaction reflects shares transferred from the Reporting Person's direct ownership to the Saeman Weisner Family Trust.

F2: Includes 2,731 restricted stock units that have not vested or been delivered to the Reporting Person, as well as restricted stock units that have vested but delivery of which has been deferred by the Reporting Person.

F3: This transaction was executed in multiple trades at prices ranging from $115.01 to $116.01. The price reported above reflects the weighted average price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected.

F4: This transaction was executed in multiple trades at prices ranging from $116.10 to $117.10. The price reported above reflects the weighted average price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected.

F5: This transaction was executed in multiple trades at prices ranging from $117.12 to $118.06. The price reported above reflects the weighted average price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected.

F6: This transaction was executed in multiple trades at prices ranging from $118.18 to $118.74. The price reported above reflects the weighted average price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected.

F7: This option was granted on June 2, 2016 and fully vested on the first anniversary of the grant date.