Glaukos (NASDAQ: GKOS) affiliate sale reported in Form 144

Rhea-AI Filing Summary

Glaukos Corporation submitted a Form 144 notice disclosing proposed sales of Common Stock by an affiliate through broker Fidelity Brokerage Services LLC. The filing lists past sales of 1,031 shares on 03/16/2026 for $101,085.67 and identifies restricted stock vesting events of 338, 517, and 1,238 shares on 12/13/2024, 12/18/2024, and 01/01/2025, respectively.

Key Figures

Shares sold (past 3 months): 1,031 shares Proceeds reported: $101,085.67 Restricted stock vesting (12/13/2024): 338 shares +3 more

6 metrics

Shares sold (past 3 months) 1,031 shares sale dated 03/16/2026

Proceeds reported $101,085.67 proceeds from 1,031-share sale on 03/16/2026

Restricted stock vesting (12/13/2024) 338 shares vesting labeled Compensation

Restricted stock vesting (12/18/2024) 517 shares vesting labeled Compensation

Restricted stock vesting (01/01/2025) 1,238 shares vesting labeled Compensation

Broker of record Fidelity Brokerage Services LLC listed in Form 144 header

Key Terms

Form 144, Restricted Stock Vesting, Issuer, Securities Sold During The Past 3 Months

4 terms

Form 144 regulatory

"144: Securities Sold During The Past 3 Months"

Form 144 is a document that investors must file with the government when they plan to sell a large number of shares of a company's stock. It helps ensure transparency so everyone knows how many shares are being sold and when, which can impact the stock's price.

Restricted Stock Vesting financial

"Common | 12/13/2024 | Restricted Stock Vesting"

Restricted stock vesting is the timetable and conditions under which shares granted to employees or insiders become fully owned and can be sold, typically requiring continued work or meeting performance goals. It matters to investors because large blocks of shares can become tradable at once, which can change share supply and price, and because vesting aligns insiders’ incentives with the company’s long‑term performance—think of it like a timed unlock that both rewards and locks in key people.

Issuer financial

"Restricted Stock Vesting | Issuer"

Securities Sold During The Past 3 Months regulatory

"144: Securities Sold During The Past 3 Months"

Form 144 Filer Information	UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 144 NOTICE OF PROPOSED SALE OF SECURITIES PURSUANT TO RULE 144 UNDER THE SECURITIES ACT OF 1933
FORM 144

144: Filer Information

Filer CIK
Filer CCC
Is this a LIVE or TEST Filing?	LIVE TEST
Submission Contact Information
Name
Phone
E-Mail Address

144: Issuer Information

Name of Issuer

SEC File Number

Address of Issuer

Phone

Name of Person for Whose Account the Securities are To Be Sold

See the definition of "person" in paragraph (a) of Rule 144. Information is to be given not only as to the person for whose account the securities are to be sold but also as to all other persons included in that definition. In addition, information shall be given as to sales by all persons whose sales are required by paragraph (e) of Rule 144 to be aggregated with sales for the account of the person filing this notice.

Relationship to Issuer

144: Securities Information

Title of the Class of Securities To Be Sold	Name and Address of the Broker	Number of Shares or Other Units To Be Sold	Aggregate Market Value	Number of Shares or Other Units Outstanding	Approximate Date of Sale	Name the Securities Exchange
Common	Fidelity Brokerage Services LLC 900 Salem Street Smithfield RI 02917	2093	246177.94	58078812	04/10/2026	NYSE

Furnish the following information with respect to the acquisition of the securities to be sold and with respect to the payment of all or any part of the purchase price or other consideration therefor:

144: Securities To Be Sold

Title of the Class	Date you Acquired	Nature of Acquisition Transaction	Name of Person from Whom Acquired	Is this a Gift?	Date Donor Acquired	Amount of Securities Acquired	Date of Payment	Nature of Payment *
Common	12/13/2024	Restricted Stock Vesting	Issuer			338	12/13/2024	Compensation
Common	12/18/2024	Restricted Stock Vesting	Issuer			517	12/18/2024	Compensation
Common	01/01/2025	Restricted Stock Vesting	Issuer			1238	01/01/2025	Compensation

* If the securities were purchased and full payment therefor was not made in cash at the time of purchase, explain in the table or in a note thereto the nature of the consideration given. If the consideration consisted of any note or other obligation, or if payment was made in installments describe the arrangement and state when the note or other obligation was discharged in full or the last installment paid.

Furnish the following information as to all securities of the issuer sold during the past 3 months by the person for whose account the securities are to be sold.

144: Securities Sold During The Past 3 Months

Name and Address of Seller	Title of Securities Sold	Date of Sale	Amount of Securities Sold	Gross Proceeds
Tomas Navratil One Glaukos Way Aliso Viejo CA 92656	Common	03/16/2026	1031	101085.67

144: Remarks and Signature

Remarks

Date of Notice

Date of Plan Adoption or Giving of Instruction, If Relying on Rule 10b5-1

ATTENTION:

The person for whose account the securities to which this notice relates are to be sold hereby represents by signing this notice that he does not know any material adverse information in regard to the current and prospective operations of the Issuer of the securities to be sold which has not been publicly disclosed. If such person has adopted a written trading plan or given trading instructions to satisfy Rule 10b5-1 under the Exchange Act, by signing the form and indicating the date that the plan was adopted or the instruction given, that person makes such representation as of the plan adoption or instruction date.

Signature

ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)

FAQ

What does Glaukos's (GKOS) Form 144 filing report?

It reports a proposed affiliate sale of Common Stock through Fidelity Brokerage Services. The filing also records a prior sale of 1,031 shares on 03/16/2026 for $101,085.67 and lists multiple restricted stock vesting events dated in 2024 and 2025.

Who is the selling party named in the GKOS Form 144?

The filing names Tomas Navratil as a party associated with prior sales activity. It shows a sale of 1,031 shares on 03/16/2026 and lists Fidelity Brokerage Services LLC as the broker in the Form 144 record.

What vesting or compensation shares are listed in the filing?

The filing lists restricted stock vesting events of 338 shares (12/13/2024), 517 shares (12/18/2024), and 1,238 shares (01/01/2025). These entries are labeled as Compensation in the securities-to-be-sold section.

Does the Form 144 show proceeds from recent sales for GKOS?

Yes; the excerpt records proceeds of $101,085.67 tied to a sale of 1,031 shares on 03/16/2026. The filing entry presents that amount alongside the shares and sale date in the "Securities Sold During The Past 3 Months" section.