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Glaukos (NYSE: GKOS) insider Alex R. Thurman plans 20,000-share stock sale

Filing Impact
(Neutral)
Filing Sentiment
(Neutral)
Form Type
144

Rhea-AI Filing Summary

Glaukos Corporation insider Alex R. Thurman has filed to sell common stock. The filing lists a proposed sale of 20,000 common shares, related to a stock option exercise, with an aggregate market value of $3,602,674.21 as of August 7, 2026, when 58,983,937 shares were outstanding. Recent activity over the prior three months included three sales of 10,000 shares each, for proceeds of $1,500,000.00, $1,550,000.00, and $1,600,000.00.

Positive

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Negative

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Proposed shares to be sold 20,000 shares Common stock listed for sale in the Form 144
Aggregate market value of proposed sale $3,602,674.21 Value of 20,000 common shares as of August 7, 2026
Shares outstanding 58,983,937 shares Glaukos common shares outstanding as of August 7, 2026
Sale on July 6, 2026 10,000 shares for $1,500,000.00 Common stock sold by Alex R. Thurman during past 3 months
Sale on July 9, 2026 10,000 shares for $1,550,000.00 Common stock sold by Alex R. Thurman during past 3 months
Sale on July 16, 2026 10,000 shares for $1,600,000.00 Common stock sold by Alex R. Thurman during past 3 months
Form 144 regulatory
"144: Securities To Be Sold"
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.
stock option exercise financial
"Common | 08/07/2026 | Stock Option Exercise | Issuer"
A stock option exercise is the act of using a previously granted right to buy shares of a company's stock at a specific, predetermined price by paying that price and receiving the shares. It matters to investors because exercising changes who owns the shares (which can dilute existing ownership), can trigger taxable events and shift potential gains or losses, and affects voting power and the company’s outstanding share count—like turning a voucher into an actual product that becomes part of circulating supply.
aggregate market value financial
"Common | Fidelity Brokerage Services LLC ... | 20000 | 3602674.21"
Aggregate market value is the combined price you would pay to buy all outstanding shares of a company or all companies in a group at current market prices — essentially the sum of each stock’s market capitalization. It matters to investors because it shows the overall size and weight of an investment or sector (like the total cost to buy every piece of a puzzle), helps compare scale across companies or markets, and influences index composition and risk exposure.
securities to be sold regulatory
"144: Securities To Be Sold"

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

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FAQ

What does Glaukos (GKOS) insider Alex R. Thurman plan to sell under this Form 144?
Alex R. Thurman plans to sell 20,000 shares of Glaukos common stock. The filing ties this proposed sale to a stock option exercise on August 7, 2026, with the transaction structured as a cash exercise.

What is the aggregate market value of the GKOS shares listed for sale?
The aggregate market value of the 20,000 Glaukos common shares listed in the filing is $3,602,674.21. This value reflects the market price used in the Form 144 as of August 7, 2026.

How many Glaukos (GKOS) shares were outstanding at the time of the Form 144?
At the time referenced, 58,983,937 Glaukos common shares were outstanding. This figure, dated August 7, 2026, provides context for the size of the proposed 20,000-share sale relative to total shares.

What Glaukos (GKOS) stock sales has Alex R. Thurman made in the past three months?
Over the past three months, Alex R. Thurman sold 10,000 shares on each of July 6, July 9, and July 16, 2026, for proceeds of $1,500,000.00, $1,550,000.00, and $1,600,000.00, respectively.

On which exchange are the Glaukos (GKOS) shares in this Form 144 listed?
The common shares referenced in the filing are listed on the NYSE. The Form 144 identifies the security as Glaukos common stock traded on the New York Stock Exchange as of August 7, 2026.

144: Filer Information

144: Issuer Information

144: Securities Information



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


* 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

144: Remarks and Signature

Source: View Original Filing on SEC EDGAR