Glaukos (NYSE: GKOS) president reports new stock and option grants

Rhea-AI Filing Summary

GLAUKOS Corp President & COO Joseph E. Gilliam reported a series of equity awards on March 25, 2026. He received stock options covering 16,462 and 21,955 shares of common stock at an exercise price of $55.18 per share and an additional option for 36,751 shares at $48.46 per share. He also was granted 5,829 and 17,792 shares of common stock as restricted stock unit-based awards. According to the footnotes, these grants were tied to the company’s achievement of multi-year operational and performance targets, with portions vesting in March and December 2026 and others vesting 25% annually over four years. These are compensation-related grants rather than open-market trades.

Insider Trade Summary

5 transactions reported

Mixed 5 txns

Insider Gilliam Joseph E

Role PRESIDENT & COO

Type	Security	Shares	Price	Value
Grant/Award	Stock Option (Right to Buy)	16,462	$0.00	--
Grant/Award	Stock Option (Right to Buy)	21,955	$0.00	--
Grant/Award	Stock Option (Right to Buy)	36,751	$0.00	--
Grant/Award	Common Stock	5,829	$0.00	--
Grant/Award	Common Stock	17,792	$0.00	--

Holdings After Transaction: Stock Option (Right to Buy) — 71,475 shares (Direct); Common Stock — 78,369 shares (Direct)

Footnotes (1)

1. Represents shares of common stock underlying a portion of an award of restricted stock units previously granted by the Issuer on March 14, 2024, the vesting of which was subject to the Issuer's achievement of certain pre-determined operational targets over a multi-year performance period. The Compensation, Nominating and Governance Committee of the Issuer's Board of Directors determined on March 25, 2026 that certain of the operational targets had been achieved. The number of shares reported herein consists of the portion of the award that was deemed earned based upon the achievement of the operational target. 100% of the number of shares of common stock reported herein will vest and be delivered in March 2026. Includes 31,962 restricted stock units that have not yet vested or been delivered to the Reporting Person. Granted by the Issuer in the form of restricted stock units which vest over a four-year period, with 25% to vest on each anniversary of the grant date Includes 49,754 restricted stock units that have not yet vested or been delivered to the Reporting Person. Represents a portion of an option to purchase shares of common stock previously granted by the Issuer on March 24, 2022, the vesting of which was subject to the Issuer's achievement of certain pre-determined operational targets over a multi-year performance period. The Compensation Committee determined on December 15, 2022 that certain of the operational targets had been achieved. The number of shares of common stock subject to the stock option as reported herein consists of the portion of the award that was earned based upon the achievement of the operational targets. 50% of the portion of the option reported herein will vest and become exercisable in March 2026. 50% of the portion of the option reported herein will vest and become exercisable in December 2026. Represents a portion of an option to purchase shares of common stock previously granted by the Issuer to the Reporting Person on March 24, 2022 in connection with his promotion to President and Chief Operating Officer, the vesting of which was subject to the Issuer's achievement of certain multi-year performance goals. The Compensation, Nominating & Governance Committee determined on March 25, 2026 the level of achievement for the fourth year of the multi-year performance period. The number of shares of common stock subject to the stock option reported herein consists of the portion of the shares subject to the stock option that vested with respect to 100% of the fourth-year performance goal. Represents shares of common stock underlying a portion of an award of restricted stock units previously granted by the Issuer on March 22, 2023, the vesting of which was subject to the Issuer's achievement of certain pre-determined operational targets over a multi-year performance period. The Compensation, Nominating and Governance Committee of the Issuer's Board of Directors determined on March 25, 2026 that certain of the operational targets had been achieved. The number of shares of common stock subject to the stock option as reported herein consists of the portion of the award that was earned based upon the achievement of the operational targets.

Form 4 Insider Transactions: What Each Field Means →

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

Gilliam Joseph E

(Last) (First) (Middle)

C/O GLAUKOS CORPORATION

ONE GLAUKOS WAY

(Street)

ALISO VIEJO CALIFORNIA 92656

(City) (State) (Zip)

UNITED STATES

(Country)

2. Issuer Name and Ticker or Trading Symbol
GLAUKOS Corp [ GKOS ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	PRESIDENT & COO

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
03/25/2026

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

4. If Amendment, Date of Original Filed (Month/Day/Year)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Common Stock	03/25/2026		A		5,829(1)	A	$0	78,369(2)	D
Common Stock	03/25/2026		A		17,792(3)	A	$0	96,161(4)	D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares
Stock Option (Right to Buy)	$55.18	03/25/2026		A		16,462(5)		(6)	03/24/2032	Common Stock	16,462	$0	71,475	D
Stock Option (Right to Buy)	$55.18	03/25/2026		A		21,955(7)		03/25/2026	03/24/2032	Common Stock	21,955	$0	52,668	D
Stock Option (Right to Buy)	$48.46	03/25/2026		A		36,751(8)		03/25/2026	03/14/2033	Common Stock	36,751	$0	36,751	D

Explanation of Responses:

1. Represents shares of common stock underlying a portion of an award of restricted stock units previously granted by the Issuer on March 14, 2024, the vesting of which was subject to the Issuer's achievement of certain pre-determined operational targets over a multi-year performance period. The Compensation, Nominating and Governance Committee of the Issuer's Board of Directors determined on March 25, 2026 that certain of the operational targets had been achieved. The number of shares reported herein consists of the portion of the award that was deemed earned based upon the achievement of the operational target. 100% of the number of shares of common stock reported herein will vest and be delivered in March 2026.

2. Includes 31,962 restricted stock units that have not yet vested or been delivered to the Reporting Person.

3. Granted by the Issuer in the form of restricted stock units which vest over a four-year period, with 25% to vest on each anniversary of the grant date

4. Includes 49,754 restricted stock units that have not yet vested or been delivered to the Reporting Person.

5. Represents a portion of an option to purchase shares of common stock previously granted by the Issuer on March 24, 2022, the vesting of which was subject to the Issuer's achievement of certain pre-determined operational targets over a multi-year performance period. The Compensation Committee determined on December 15, 2022 that certain of the operational targets had been achieved. The number of shares of common stock subject to the stock option as reported herein consists of the portion of the award that was earned based upon the achievement of the operational targets.

6. 50% of the portion of the option reported herein will vest and become exercisable in March 2026. 50% of the portion of the option reported herein will vest and become exercisable in December 2026.

7. Represents a portion of an option to purchase shares of common stock previously granted by the Issuer to the Reporting Person on March 24, 2022 in connection with his promotion to President and Chief Operating Officer, the vesting of which was subject to the Issuer's achievement of certain multi-year performance goals. The Compensation, Nominating & Governance Committee determined on March 25, 2026 the level of achievement for the fourth year of the multi-year performance period. The number of shares of common stock subject to the stock option reported herein consists of the portion of the shares subject to the stock option that vested with respect to 100% of the fourth-year performance goal.

8. Represents shares of common stock underlying a portion of an award of restricted stock units previously granted by the Issuer on March 22, 2023, the vesting of which was subject to the Issuer's achievement of certain pre-determined operational targets over a multi-year performance period. The Compensation, Nominating and Governance Committee of the Issuer's Board of Directors determined on March 25, 2026 that certain of the operational targets had been achieved. The number of shares of common stock subject to the stock option as reported herein consists of the portion of the award that was earned based upon the achievement of the operational targets.

	Diana Scherer, Attorney-in-Fact	03/27/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
* Form 4: SEC 1474 (03-26)

FAQ

What did GLAUKOS (GKOS) President & COO Joseph Gilliam report in this Form 4?

He reported equity compensation awards, not market trades. These include several stock option grants and restricted stock-based awards in GLAUKOS common stock, all recorded as acquisitions under compensation plans tied to performance and time-based vesting conditions.

How many GLAUKOS (GKOS) stock options did Joseph Gilliam receive?

He received options over 16,462 and 21,955 shares at an exercise price of $55.18 per share, plus an option over 36,751 shares at $48.46 per share. All are described as compensation-related awards linked to multi-year performance targets and vesting schedules.

What common stock awards did Joseph Gilliam receive from GLAUKOS (GKOS)?

He was granted 5,829 and 17,792 shares of common stock through restricted stock unit-based awards. Footnotes state these awards were earned based on GLAUKOS achieving specified multi-year operational targets, with settlement and delivery scheduled around March 2026.

Are Joseph Gilliam’s GLAUKOS (GKOS) Form 4 transactions open-market buys or sells?

No, all reported entries use code A for grant, award, or other acquisition. The data and footnotes indicate these are stock option and restricted stock unit grants as compensation, not open-market purchases or sales of GLAUKOS common stock.

How do the GLAUKOS (GKOS) equity awards to Joseph Gilliam vest?

Some restricted stock units vest based on operational targets over a multi-year period, with earned shares delivered in March 2026. Another award vests 25% on each anniversary of the grant date, while certain option portions vest in March and December 2026.

Does Joseph Gilliam have additional unvested GLAUKOS (GKOS) restricted stock units?

Yes. Footnotes state his reported holdings include 31,962 restricted stock units in one line and 49,754 in another that have not yet vested or been delivered. These figures represent additional unvested equity compensation beyond the newly reported awards.