Thomas W. Burns - 08 Jan 2026 Form 4 Insider Report for GLAUKOS Corp (GKOS)

Role
CHAIRMAN & CEO, Director
Signature
Diana Scherer, Attorney-in-Fact
Issuer symbol
GKOS
Transactions as of
08 Jan 2026
Net transactions value
-$27,090,250
Form type
4
Filing time
20 Jan 2026, 18:37:35 UTC
Previous filing
31 Dec 2025
Next filing
10 Feb 2026
SEC
View on sec.gov

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
Burns Thomas William CHAIRMAN & CEO, Director C/O GLAUKOS CORPORATION, ONE GLAUKOS WAY, ALISO VIEJO Diana Scherer, Attorney-in-Fact 20 Jan 2026 0001644557

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction GKOS Common Stock Options Exercise $1,452,027 +88,055 +57% $16.49 241,830 08 Jan 2026 Direct F1
transaction GKOS Common Stock Sale $10,126,325 -88,055 -36% $115.00 153,775 08 Jan 2026 Direct F1, F2
transaction GKOS Common Stock Options Exercise $3,082,723 +186,945 +122% $16.49 340,720 16 Jan 2026 Direct F1
transaction GKOS Common Stock Sale $21,498,675 -186,945 -55% $115.00 153,775 16 Jan 2026 Direct F1, F2
holding GKOS Common Stock 893,932 08 Jan 2026 Through the Burns Family Trust
holding GKOS Common Stock 238,107 08 Jan 2026 Through the Burns Annuity Trust
holding GKOS Common Stock 120,000 08 Jan 2026 Through the Burns Charitable Remainder Trust
holding GKOS Common Stock 100,000 08 Jan 2026 Through the Thomas W. Burns Irrevocable Trust
holding GKOS Common Stock 100,000 08 Jan 2026 Through the Janet M. Burns Irrevocable Trust

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Underlying Class Amount Exercise Price Ownership Footnotes
transaction GKOS Stock Option (Right to Buy) Options Exercise $0 -88,055 -32% $0.000000 186,945 08 Jan 2026 Common Stock 88,055 $16.49 Direct F3, F4
transaction GKOS Stock Option (Right to Buy) Options Exercise $0 -186,945 -100% $0.000000 0 16 Jan 2026 Common Stock 186,945 $16.49 Direct F3, F4
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Buy Plan / Sale Plan: These are also open market purchases/sales of shares, but in this case the transaction is part of a trading plan. Rule 10b5-1 allows insiders to setup a trading plan to buy/sell stocks over a certain period of time. Since the purchases/sales are predetermined, this protects the insiders from violating insider trading law.

Transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c).

Explanation of Responses:

Id Content
F1 Includes 89,621 restricted stock units that have not yet vested or been delivered to the Reporting Person.
F2 The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on June 10, 2025 with respect to options that expire on March 10, 2026.
F3 The option exercises in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on June 10, 2025 with respect to options that expire on March 10, 2026.
F4 This option was granted on March 10, 2016 and had a four-year vesting schedule in which 25% vested on the first anniversary of the grant date and the remainder vested in equal monthly installments for 36 months thereafter, such that the stock option vested in full on the four-year anniversary of the grant date.