Glaukos director exercises options and sells 5,000 GKOS shares

Rhea-AI Filing Summary

Glaukos Corp (GKOS) director transaction: On 12/09/2025, a director exercised a stock option to acquire 5,000 shares of common stock at an exercise price of $24.69 per share, then sold 5,000 shares of common stock on the same date at a weighted average price of $107.27 per share across multiple trades.

After these transactions, the director beneficially owns 34,905 shares of Glaukos common stock, which includes 2,569 restricted stock units that have not yet vested or been delivered, as well as vested units with deferred delivery. The director also continues to hold 10,000 stock options with an exercise price of $24.69, originally granted in 2016 and already fully vested.

Insider Trade Summary

Exercise and Sale: 5,000 shares ($413K approx. pre-tax spread)

Exercise and Sale 3 txns

Insider Kliman Gilbert H

Role Director

Sold 5,000 shs ($536K)

Approx. gross sale proceeds $536K

Approx. exercise cost $123K

Approx. pre-tax spread $413K

Type	Security	Shares	Price	Value
Exercise	Stock Option (Right to Buy)	5,000	$24.69	$123K
Exercise	Common Stock	5,000	$24.69	$123K
Sale	Common Stock	5,000	$107.27	$536K

Holdings After Transaction: Stock Option (Right to Buy) — 10,000 contracts (Direct); Common Stock — 34,905 shares (Direct)

Footnotes (3)

1. F1. Includes 2,569 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.
2. F2. This transaction was executed in multiple trades at prices ranging from $107.22 to $107.45. 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.
3. F3. This option was granted on June 2, 2016 and fully vested on the first anniversary of the grant date.

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Accepted by SEC EDGAR 12/11/2025 - 04:20 PM Learn about SEC filing dates

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^*

Kliman Gilbert H

(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)
12/09/2025

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	12/09/2025		M		5,000	A	$24.69	39,905(1)	D
Common Stock	12/09/2025		S		5,000	D	$107.27(2)	34,905(1)	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)	$24.69	12/09/2025		M			5,000	06/02/2017(3)	06/02/2026	Common Stock	5,000	$24.69	10,000	D

Explanation of Responses:

1. Includes 2,569 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.

2. This transaction was executed in multiple trades at prices ranging from $107.22 to $107.45. 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.

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

	Diana Scherer, Attorney-in-Fact	12/11/2025
	** 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.