Glaukos (GKOS) director Marc Stapley receives 727 restricted stock units

Rhea-AI Filing Summary

Glaukos Corporation granted director Marc Stapley 727 restricted stock units on 01/02/2026. These units were issued under the company’s Director Compensation Policy, will vest in full one year after the grant date, and will be settled in the same number of Glaukos common shares.

Following this award, Stapley beneficially owns 37,449 shares of Glaukos common stock, which includes 2,835 restricted stock units that have not yet vested or been delivered, as well as vested units whose delivery has been deferred.

Insider Trade Summary

1 transaction reported

Mixed 1 txn

Insider Stapley Marc

Role Director

Type	Security	Shares	Price	Value
Grant/Award	Common Stock	727	$0.00	--

Holdings After Transaction: Common Stock — 37,449 shares (Direct)

Footnotes (1)

1. Represents a grant of restricted stock units received by the Reporting Person pursuant to the Issuer's Director Compensation Policy. The units will vest in full on the one-year anniversary of the grant date and are payable in an equivalent number of shares of the Issuer's common stock. Includes 2,835 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.

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^*

Stapley Marc

(Last) (First) (Middle)

C/O GLAUKOS CORPORATION

ONE GLAUKOS WAY

(Street)

ALISO VIEJO CA 92656

(City) (State) (Zip)

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

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

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

3. Date of Earliest Transaction (Month/Day/Year)
01/02/2026

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

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

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

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	01/02/2026		A		727(1)	A	$0	37,449(2)	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

Explanation of Responses:

1. Represents a grant of restricted stock units received by the Reporting Person pursuant to the Issuer's Director Compensation Policy. The units will vest in full on the one-year anniversary of the grant date and are payable in an equivalent number of shares of the Issuer's common stock.

2. Includes 2,835 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.

	Diana Scherer, Attorney-in-Fact	01/07/2026
	** 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.

FAQ

What did Glaukos (GKOS) disclose about Marc Stapley in this Form 4?

Glaukos reported that director Marc Stapley received a grant of 727 restricted stock units of Glaukos common stock on 01/02/2026 under the company’s Director Compensation Policy.

How many Glaukos shares does Marc Stapley beneficially own after this transaction?

After the reported grant, Marc Stapley beneficially owns 37,449 shares of Glaukos common stock, including both vested and unvested restricted stock units.

When do the newly granted restricted stock units to Marc Stapley vest?

The 727 restricted stock units granted to Marc Stapley will vest in full on the one-year anniversary of the grant date and will then be payable in the same number of Glaukos common shares.

How many of Marc Stapley’s Glaukos restricted stock units are still unvested or undelivered?

The filing states that his holdings include 2,835 restricted stock units that have not vested or been delivered, along with additional units that have vested but whose delivery has been deferred.

Is Marc Stapley’s ownership in Glaukos stock held directly or indirectly?

The Form 4 identifies Marc Stapley’s ownership of the 37,449 shares as direct (D) ownership, with no separate indirect ownership entity noted.

What role does Marc Stapley have at Glaukos (GKOS)?

According to the filing, Marc Stapley serves as a director of Glaukos Corporation and is not listed as an officer or 10% owner.