Glaukos (NYSE: GKOS) CEO Burns executes planned option exercises and sales

Rhea-AI Filing Summary

Glaukos Corporation’s Chairman and CEO Thomas William Burns reported planned option exercises and share sales under a Rule 10b5-1 trading plan. On January 8 and 16, 2026, he exercised stock options with a strike price of $16.49 to acquire 88,055 and 186,945 shares of common stock, respectively, then sold the same numbers of shares at a price of $115 per share. Following these transactions, he reported 153,775 shares of common stock beneficially owned directly, which the filing notes includes 89,621 restricted stock units that have not yet vested or been delivered. He also reported additional indirect holdings in several Burns family-related trusts.

Insider Trade Summary

Net Seller: 275,000 shares ($31,625,000)

Net Sell 11 txns

Insider Burns Thomas William

Role CHAIRMAN & CEO

Sold 275,000 shs ($31.63M)

Type	Security	Shares	Price	Value
Exercise	Stock Option (Right to Buy)	186,945	$0.00	--
Exercise	Common Stock	186,945	$16.49	$3.08M
Sale	Common Stock	186,945	$115.00	$21.50M
Exercise	Stock Option (Right to Buy)	88,055	$0.00	--
Exercise	Common Stock	88,055	$16.49	$1.45M
Sale	Common Stock	88,055	$115.00	$10.13M
holding	Common Stock	--	--	--
holding	Common Stock	--	--	--
holding	Common Stock	--	--	--
holding	Common Stock	--	--	--
holding	Common Stock	--	--	--

Holdings After Transaction: Stock Option (Right to Buy) — 0 shares (Direct); Common Stock — 340,720 shares (Direct); Common Stock — 893,932 shares (Indirect, Through the Burns Family Trust)

Footnotes (1)

1. Includes 89,621 restricted stock units that have not yet vested or been delivered to the Reporting Person. The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on June 10, 2025 with respect to options that expire on March 10, 2026. The option exercises in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on June 10, 2025 with respect to options that expire on March 10, 2026. This option was granted on March 10, 2016 and had a four-year vesting schedule in which 25% vested on the first anniversary of the grant date and the remainder vested in equal monthly installments for 36 months thereafter, such that the stock option vested in full on the four-year anniversary of the grant date.

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).

X

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^*

Burns Thomas William

(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
X	Officer (give title below)		Other (specify below)
	CHAIRMAN & CEO

3. Date of Earliest Transaction (Month/Day/Year)
01/08/2026

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	01/08/2026		M		88,055	A	$16.49	241,830(1)	D
Common Stock	01/08/2026		S(2)		88,055	D	$115	153,775(1)	D
Common Stock	01/16/2026		M		186,945	A	$16.49	340,720(1)	D
Common Stock	01/16/2026		S(2)		186,945	D	$115	153,775(1)	D
Common Stock								893,932	I	Through the Burns Family Trust
Common Stock								238,107	I	Through the Burns Annuity Trust
Common Stock								120,000	I	Through the Burns Charitable Remainder Trust
Common Stock								100,000	I	Through the Thomas W. Burns Irrevocable Trust
Common Stock								100,000	I	Through the Janet M. Burns Irrevocable Trust

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)	$16.49	01/08/2026		M(3)			88,055	(4)	03/10/2026	Common Stock	88,055	$0	186,945	D
Stock Option (Right to Buy)	$16.49	01/16/2026		M(3)			186,945	(4)	03/10/2026	Common Stock	186,945	$0	0	D

Explanation of Responses:

1. Includes 89,621 restricted stock units that have not yet vested or been delivered to the Reporting Person.

2. The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on June 10, 2025 with respect to options that expire on March 10, 2026.

3. The option exercises in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on June 10, 2025 with respect to options that expire on March 10, 2026.

4. This option was granted on March 10, 2016 and had a four-year vesting schedule in which 25% vested on the first anniversary of the grant date and the remainder vested in equal monthly installments for 36 months thereafter, such that the stock option vested in full on the four-year anniversary of the grant date.

	Diana Scherer, Attorney-in-Fact	01/20/2026
	** 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 insider transactions did Glaukos (GKOS) CEO Thomas William Burns report?

Thomas William Burns reported exercising stock options to acquire 88,055 and 186,945 Glaukos common shares at $16.49 per share on January 8 and 16, 2026, and selling the same numbers of shares at $115 per share.

Were the Glaukos (GKOS) CEO’s stock sales made under a Rule 10b5-1 plan?

Yes. The filing states that both the sales and the option exercises were effected under a Rule 10b5-1 trading plan adopted by Thomas William Burns on June 10, 2025 for options expiring on March 10, 2026.

What option grant did the Glaukos (GKOS) CEO exercise in this Form 4?

The transactions relate to a stock option granted on March 10, 2016 with an exercise price of $16.49. The option vested over four years, with 25% vesting after one year and the remainder in equal monthly installments over the next 36 months.

How many Glaukos (GKOS) shares does the CEO report owning directly after these trades?

After the reported transactions, Thomas William Burns reports directly beneficial ownership of 153,775 Glaukos common shares, which the filing notes includes 89,621 unvested restricted stock units.

What indirect Glaukos (GKOS) share holdings are associated with Thomas William Burns?

The Form 4 lists indirect beneficial ownership through several trusts, including 893,932 shares through the Burns Family Trust, 238,107 through the Burns Annuity Trust, 120,000 through the Burns Charitable Remainder Trust, and 100,000 shares each through the Thomas W. Burns Irrevocable Trust and the Janet M. Burns Irrevocable Trust.

What is Thomas William Burns’s role at Glaukos (GKOS)?

Thomas William Burns is identified in the filing as a Director and as the company’s Chairman & CEO.