GLAUKOS Corp — Director's Dealing 2021

May 7, 2021

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: GLAUKOS Corp (GKOS)
CIK: 0001192448
Period of Report: 2021-05-06

Reporting Person: Gilliam Joseph E (CFO, SVP Corporate Development)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2021-05-06	Common Stock	F	10549	$82.63	Disposed	42190	Direct
2021-05-06	Common Stock	S	3657	$81.95	Disposed	38533	Direct
2021-05-06	Common Stock	S	1143	$82.71	Disposed	37390	Direct
2021-05-06	Common Stock	S	100	$83.61	Disposed	37290	Direct
2021-05-06	Common Stock	S	100	$85.00	Disposed	37190	Direct

Footnotes

F1: Consists of shares withheld by the Issuer with respect to income taxes payable by the Reporting Person upon vesting and delivery of shares of common stock underlying restricted stock units previously granted by the Issuer on May 5, 2017, with the vesting schedule in four equal installments on May 5, 2018, May 5, 2019, May 5, 2020 and May 5, 2021.

F2: Includes 18,950 restricted stock units that have not yet vested or been delivered to the Reporting Person.

F3: These trades were made pursuant to a Rule 10b5-1 trading plan with pre-determined share amounts and prices.

F4: This transaction was executed in multiple trades at prices ranging from $81.49 to $82.43. 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 $82.54 to $82.90. 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.