Glaukos Insider Alex Thurman Files Form 144 for Stock Sale

TL;DR

**Glaukos insider Alex Thurman is planning to sell shares.**

AI Summary

Alex R. Thurman, an insider at Glaukos Corp (GKOS), has filed a Form 144 on March 24, 2026, indicating his intent to sell company securities. While the filing itself doesn't specify the number of shares or dollar amount, it signals a potential reduction in his ownership stake. This matters to investors because insider selling can sometimes suggest that those closest to the company believe the stock may be fully valued or that they are diversifying their personal holdings, which could be interpreted negatively by the market.

Why It Matters

Insider selling can signal a lack of confidence from those closest to the company, potentially leading to negative market sentiment and downward pressure on Glaukos's stock price.

Risk Assessment

Risk Level: medium — Insider selling, while not always negative, can sometimes precede a stock price decline, making this a moderate risk signal for current and potential investors.

Analyst Insight

A smart investor would monitor subsequent filings (like Form 4) to confirm the actual sale, the number of shares sold, and the price, and consider this alongside other company news before making investment decisions regarding Glaukos Corp.

Key Players & Entities

• Thurman Alex R. (person) — Reporting individual, an insider at Glaukos Corp
• GLAUKOS Corp (company) — The company whose securities are being proposed for sale
• 0001920061 (person) — CIK for Thurman Alex R.
• 0001192448 (company) — CIK for GLAUKOS Corp
• 2026-03-24 (date) — Filing Date and Accepted Date of the Form 144

FAQ

Filing Documents

• primary_doc.html (144)
• primary_doc.xml (144) — 3KB
• 0001959173-26-002584.txt ( ) — 5KB

From the Filing

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 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 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 Thurman Alex R. 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 1521 160070.04 58078812 03/24/2026 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 03/22/2026 Restricted Stock Vesting Issuer 1521 03/22/2026 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 Alex Thurman One Glaukos Way Aliso Viejo � CA � 92656 Common 03/17/2026 625 61968.75 144: Remarks and Signature Remarks Date of Notice 03/24/2026 Date of Plan Adoption or Giving of Instruction, If Relying on Rule 10b5-1 12/15/2025 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/Wade Moss, as a duly authorized representative of Fidelity Brokerage Services LLC, as attorney-in-fact for Alex R. Thurman ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)

View Full Filing

View this 144 filing on SEC EDGAR