Issuer of common stock plans Rule 144 sale of 88,055 shares

The issuer of GKOS common stock has filed a notice of proposed sale under Rule 144 for 88,055 shares of common stock through Fidelity Brokerage Services LLC.

Rhea-AI Filing Summary

The issuer of GKOS common stock has filed a notice of proposed sale under Rule 144 for 88,055 shares of common stock through Fidelity Brokerage Services LLC. The shares have an stated aggregate market value of 10,126,325.00, based on the information in the filing.

The filing notes that the shares were acquired on 01/08/2026 by exercising a stock option that was originally granted on 03/10/2016, with the purchase price paid in cash. The notice lists 57,434,740 shares of the issuer’s common stock as outstanding and indicates an approximate sale date of 01/08/2026 on the NYSE.

FAQ

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

How many GKOS shares are proposed to be sold under this Rule 144 notice?

The notice covers the proposed sale of 88,055 shares of GKOS common stock.

What is the aggregate market value of the GKOS shares in this planned sale?

The filing reports an aggregate market value of 10,126,325.00 for the 88,055 common shares to be sold.

Which broker is handling the planned GKOS share sale?

The proposed sale is to be executed through Fidelity Brokerage Services LLC, 900 Salem Street, Smithfield, RI 02917.

When were the GKOS shares acquired that are being sold under Rule 144?

The shares were acquired on 01/08/2026 by exercising a stock option that was originally granted on 03/10/2016.

How were the GKOS shares paid for when the option was exercised?

The filing states that the purchase price was paid in cash on 01/08/2026 when the option was exercised.

How many GKOS common shares are outstanding according to this notice?

The notice reports that 57,434,740 shares of the issuer’s common stock were outstanding.

On which exchange is the GKOS common stock listed for this planned sale?

The filing identifies the NYSE as the securities exchange for the planned sale of GKOS common stock.

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

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Accepted by SEC EDGAR 01/08/2026 - 04:09 PM Learn about SEC filing dates

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	0001644557
Filer CCC	XXXXXXXX
Is this a LIVE or TEST Filing?	LIVE TEST
Submission Contact Information
Name
Phone
E-Mail Address

144: Issuer Information

Name of Issuer	GLAUKOS Corp
SEC File Number	001-37463
Address of Issuer	1 GLAUKOS WAY ALISO VIEJO CALIFORNIA 92656
Phone	949-367-9600
Name of Person for Whose Account the Securities are To Be Sold	Burns Thomas William
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	Officer
Relationship to Issuer	Director

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	88055	10126325.00	57434740	01/08/2026	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	01/08/2026	Option Granted - 03/10/2016	Issuer			88055	01/08/2026	Cash

* 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

Nothing to Report

144: Remarks and Signature

Remarks
Date of Notice	01/08/2026
Date of Plan Adoption or Giving of Instruction, If Relying on Rule 10b5-1	06/10/2025
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	/s/ Joshua Schmitt, as a duly authorized representative of Fidelity Brokerage Services LLC, as attorney-in-fact for Thomas Burns.
ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)