Glaukos CFO exercises options, sells 10k shares

GLAUKOS Corp SVP & Chief Financial Officer Alex R. Thurman exercised options for 10,000 shares of common stock at an exercise price of $38.68 per share on July 16, 2026, then sold 10,000 shares at $160.00 per share.

Rhea-AI Filing Summary

GLAUKOS Corp SVP & Chief Financial Officer Alex R. Thurman exercised options for 10,000 shares of common stock at an exercise price of $38.68 per share on July 16, 2026, then sold 10,000 shares at $160.00 per share. The option exercises and sales were effected under a Rule 10b5-1 trading plan adopted on December 15, 2025. Equity holdings also include 5,230 unvested restricted stock units and 225 shares acquired through the Employee Stock Purchase Plan.

Insider Trade Summary 10b5-1

Exercise and Sale: 10,000 shares ($1.21M approx. pre-tax spread)

Exercise and Sale 3 txns

Insider Thurman Alex R.

Role SVP & CHIEF FINANCIAL OFFICER

Sold 10,000 shs ($1.60M)

Approx. gross sale proceeds $1.60M

Approx. exercise cost $387K

Approx. pre-tax spread $1.21M

Type	Security	Shares	Price	Value
Exercise	Stock Option (Right to Buy) F3, F4	10,000	$0.00	$0.00
Exercise	Common Stock F1	10,000	$38.68	$387K
Sale	Common Stock F2, F1	10,000	$160.00	$1.60M

Holdings After Transaction: Stock Option (Right to Buy) — 10,000 contracts (Direct); Common Stock — 43,906 shares (Direct)

Footnotes (4)

1. F1. Includes 5,230 restricted stock units that have not yet vested or been delivered to the Reporting Person and and 225 stock units purchased by the Reporting Person through the Issuer's Employee Stock Purchase Plan.
2. F2. The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on December 15, 2025.
3. F3. The option exercises reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on December 15, 2025.
4. F4. These options vest over four years from the grant date, with 25% vesting on the first anniversary of the grant date and the remaining amount vesting in equal monthly installments over the following three years.

Key Figures

Options Exercised: 10,000 shares Option Exercise Price: $38.68 per share Shares Sold: 10,000 shares +4 more

7 metrics

Options Exercised 10,000 shares Stock options exercised by the CFO on July 16, 2026

Option Exercise Price $38.68 per share Exercise price for 10,000 stock options converted into common stock

Shares Sold 10,000 shares Common stock sold by the CFO on July 16, 2026

Sale Price $160.00 per share Per-share sale price for the 10,000 common shares sold

Unvested RSUs 5,230 units Restricted stock units not yet vested or delivered to the reporting person

ESPP Shares 225 shares Shares purchased through the Employee Stock Purchase Plan

Option Expiration Date 2026-10-06 Expiration date for the stock options that were exercised

Key Terms

Rule 10b5-1 trading plan, restricted stock units, Employee Stock Purchase Plan, Stock Option (Right to Buy), +1 more

5 terms

Rule 10b5-1 trading plan regulatory

"The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan"

A Rule 10b5-1 trading plan is a pre-arranged schedule that allows company insiders to buy or sell stock at specific times, even if they have inside information. It helps prevent accusations of unfair trading by making these transactions look planned and transparent, rather than sneaky or illegal.

restricted stock units financial

"Includes 5,230 restricted stock units that have not yet vested or been delivered"

Restricted stock units are a type of company reward where employees are promised shares of stock, but they only fully own these shares after meeting certain conditions, like staying with the company for a set time. They matter because they can become valuable assets and are often used to motivate employees to help the company succeed.

Employee Stock Purchase Plan financial

"225 stock units purchased by the Reporting Person through the Issuer's Employee Stock Purchase Plan"

An employee stock purchase plan is a company program that lets workers buy shares through small payroll deductions, often at a discount to the market price and after a set offering period. Think of it like a workplace savings plan that turns into ownership: it encourages employees to share in the company’s success and can create predictable buying or selling of stock that investors watch because it affects supply, demand and employee incentives.

Stock Option (Right to Buy) financial

"security_title: Stock Option (Right to Buy)"

exercise or conversion of derivative security financial

"transaction_code_description: Exercise or conversion of derivative security"

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What did GLAUKOS Corp (GKOS) CFO Alex R. Thurman report in this Form 4?

Alex R. Thurman reported exercising 10,000 stock options at $38.68 and then selling 10,000 common shares at $160.00 on July 16, 2026, in transactions executed under a Rule 10b5-1 trading plan.

How many GLAUKOS Corp (GKOS) shares did the CFO sell and at what price?

The CFO sold 10,000 shares of GLAUKOS common stock at a price of $160.00 per share. The sales occurred on July 16, 2026 and were executed under a Rule 10b5-1 trading plan adopted in December 2025.

What stock options did the GLAUKOS Corp (GKOS) CFO exercise?

The CFO exercised 10,000 stock options (Stock Option, Right to Buy) at an exercise price of $38.68 per share. These options vest over four years, with 25% after one year and the rest in equal monthly installments.

Were the recent GKOS insider transactions under a Rule 10b5-1 plan?

Yes. Both the option exercises and share sales reported by the GLAUKOS CFO were carried out under a Rule 10b5-1 trading plan adopted on December 15, 2025, as noted in the footnotes and plan checkbox.

Does the GLAUKOS Corp (GKOS) CFO still hold equity awards after these trades?

Yes. Reported equity holdings include 5,230 restricted stock units that have not yet vested or been delivered and 225 shares acquired through the Employee Stock Purchase Plan, in addition to any other holdings not detailed here.

What is the vesting schedule of the GLAUKOS Corp (GKOS) options exercised?

The options exercised by the CFO vest over four years: 25% on the first anniversary of the grant date, with the remaining 75% vesting in equal monthly installments over the following three years, according to the disclosure.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Accepted by SEC EDGAR 07/21/2026 - 04:26 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).

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^*

Thurman Alex R.

(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)
	SVP & CHIEF FINANCIAL OFFICER

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
07/16/2026

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	07/16/2026		M		10,000	A	$38.68	53,906(1)	D
Common Stock	07/16/2026		S(2)		10,000	D	$160	43,906(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)	$38.68	07/16/2026		M			10,000(3)	(4)	10/06/2026	Common Stock	10,000	$0	10,000	D

Explanation of Responses:

1. Includes 5,230 restricted stock units that have not yet vested or been delivered to the Reporting Person and and 225 stock units purchased by the Reporting Person through the Issuer's Employee Stock Purchase Plan.

2. The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on December 15, 2025.

3. The option exercises reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on December 15, 2025.

4. These options vest over four years from the grant date, with 25% vesting on the first anniversary of the grant date and the remaining amount vesting in equal monthly installments over the following three years.

	Diana Scherer, Attorney-in-Fact	07/21/2026
	** 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)