Glaukos (NYSE: GKOS) insider plans sale of 186,945 common shares

Rhea-AI Filing Summary

Glaukos Corporation insider Thomas Burns has filed a notice of proposed stock sales under Rule 144. The filing covers 186,945 shares of common stock to be sold through Fidelity Brokerage Services LLC on the NYSE, with an aggregate market value of $21,498,675.00 and 57,434,740 shares of common stock outstanding.

The shares to be sold were acquired on January 16, 2026 through the cash exercise of a stock option that was originally granted on March 10, 2016, with 186,945 shares acquired and paid in cash on that date. Over the prior three months, Burns sold 88,055 shares of Glaukos common stock on January 8, 2026 for gross proceeds of $10,126,325.00.

Insights

Equity markets & insider transactions analyst

Routine Rule 144 filing discloses a sizable insider stock sale plan.

This notice shows Thomas Burns planning to sell 186,945 shares of Glaukos common stock under Rule 144 through Fidelity Brokerage Services LLC on the NYSE. The filing lists an aggregate market value of $21,498,675.00 for the proposed sale and indicates total common shares outstanding of 57,434,740.

The shares come from the cash exercise on January 16, 2026 of a stock option originally granted on March 10, 2016, with 186,945 shares acquired for cash. The filing also records that during the previous three months Burns sold 88,055 common shares on January 8, 2026 for gross proceeds of $10,126,325.00, providing additional context on recent selling activity.

Form 144 is a notice of intent rather than a guarantee that all shares will be sold, and actual sales can depend on market conditions and trading decisions. Future company filings and trade reports would reflect any completed transactions tied to this notice.

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

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	186945	21498675.00	57434740	01/16/2026	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	01/16/2026	Option Granted - 03/10/2016	Issuer			186945	01/16/2026	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
Thomas Burns 1 Glaukos Way Aliso Viejo CA 92656	Common	01/08/2026	88055	10126325.00

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

Who is selling shares of Glaukos (GKOS) in this Form 144?

The notice identifies Thomas Burns as the person for whose account the Glaukos common stock is to be sold.

How many Glaukos (GKOS) shares are covered by this Rule 144 notice?

The filing covers 186,945 shares of Glaukos common stock, with an aggregate market value of $21,498,675.00 listed in the document.

How and when were the Glaukos (GKOS) shares to be sold acquired?

The 186,945 common shares were acquired on January 16, 2026 via an option originally granted on March 10, 2016, with the option exercised for cash on the same date.

What recent Glaukos (GKOS) stock sales has Thomas Burns made?

Over the past three months, the filing reports that Thomas Burns sold 88,055 Glaukos common shares on January 8, 2026 for gross proceeds of $10,126,325.00.

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

The planned sale uses Fidelity Brokerage Services LLC as broker, with the common shares listed for sale on the NYSE.

How many Glaukos (GKOS) shares are outstanding according to this filing?

The document states that 57,434,740 shares of Glaukos common stock are outstanding.