Glaukos insider plans sale of 4,502 shares

Glaukos insider Joseph Gilliam has filed a Form 144 notice to sell up to 4,502 shares of Glaukos common stock.

Rhea-AI Filing Summary

Glaukos insider Joseph Gilliam has filed a Form 144 notice to sell up to 4,502 shares of Glaukos common stock. The shares are to be sold through Fidelity Brokerage Services LLC on the NYSE, with an approximate sale date of 01/21/2026 and an aggregate market value of 561167.76 based on the figures given. The filing notes that 57434740 shares of Glaukos common stock were outstanding.

The 4,502 shares were acquired on 01/21/2026 through the cash exercise of stock options that were originally granted on 03/24/2022 by the issuer. The notice also reports that during the past three months, Joseph Gilliam sold 19,340 shares of Glaukos common stock on 11/18/2025 for gross proceeds of 1740600.00.

FAQ

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What does Glaukos (GKOS) insider Joseph Gilliam plan to sell under this Form 144?

The Form 144 shows that Joseph Gilliam intends to sell up to 4,502 shares of Glaukos common stock through Fidelity Brokerage Services LLC on the NYSE, with an approximate sale date of 01/21/2026.

How did the Glaukos (GKOS) insider acquire the 4,502 shares to be sold?

The 4,502 Glaukos common shares were acquired on 01/21/2026 via the cash exercise of stock options that were originally granted on 03/24/2022 by the issuer.

What recent Glaukos (GKOS) insider sales are disclosed in this Form 144?

Over the past three months, Joseph Gilliam sold 19,340 Glaukos common shares on 11/18/2025, generating gross proceeds of 1740600.00.

How many Glaukos (GKOS) shares are reported as outstanding in this filing?

The Form 144 states that 57434740 shares of Glaukos common stock were outstanding in the context of the planned 4,502-share sale.

Which broker and exchange are involved in this Glaukos (GKOS) Form 144 sale?

The filing lists Fidelity Brokerage Services LLC as the broker for the planned sale of 4,502 Glaukos common shares, with trades expected on the NYSE.

What representation does the Glaukos (GKOS) insider make in signing the Form 144?

By signing the notice, the selling person represents that they do not know any material adverse, non-public information about Glaukos' current or prospective operations and, if relying on a Rule 10b5-1 plan, makes that representation as of the plan adoption or instruction date.

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

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Accepted by SEC EDGAR 01/21/2026 - 04:40 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	0001705850
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	Gilliam Joseph E
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

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	4502	561167.76	57434740	01/21/2026	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	01/21/2026	Options Granted - 03/24/2022	Issuer			4502	01/21/2026	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

Name and Address of Seller	Title of Securities Sold	Date of Sale	Amount of Securities Sold	Gross Proceeds
Joseph Gilliam 1 Glaukos Way Aliso Viejo CA 92656	Common	11/18/2025	19340	1740600.00

144: Remarks and Signature

Remarks
Date of Notice	01/21/2026
Date of Plan Adoption or Giving of Instruction, If Relying on Rule 10b5-1	06/11/2025
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/ Adam Gehring, as a duly authorized representative of Fidelity Brokerage Services LLC, as attorney-in-fact for Joseph Gilliam
ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)