X0508 4 2026-02-20 0001097149 ALIGN TECHNOLOGY INC ALGN 0001777603 Coletti Julie Ann C/O ALIGN TECHNOLOGY, INC. 410 N. SCOTTSDALE ROAD., SUITE 1300 TEMPE AZ 85288 false true false false EVP, CHIEF LEGAL & REGULATORY false Common Stock 2026-02-20 4 M false 5864 0 A 13163 D Common Stock 2026-02-20 4 F false 1718 190.02 D 11445 D Restricted Stock Unit 0.0001 2026-02-20 4 A false 5493 0 A Common Stock 5493 5493 D Market Stock Unit 0.0001 2026-02-20 4 A false 11153 0 A Common Stock 11153 11153 D Restricted Stock Unit 0.0001 2026-02-20 4 M false 598 0 D Common Stock 598 1195 D Restricted Stock Unit 0.0001 2026-02-20 4 M false 947 0 D Common Stock 947 2841 D Restricted Stock Unit 0.0001 2026-02-20 4 M false 291 0 D Common Stock 291 0 D Market Stock Unit 0.0001 2026-02-20 4 M false 3490 0 D Common Stock 3490 0 D Restricted Stock Unit 0.0001 2026-02-20 4 M false 538 0 D Common Stock 538 538 D Includes 120 shares acquired on January 30, 2026 and 69 shares acquired on January 31, 2025 under the ALGN Employee Stock Purchase Plan. Represents par value of ALGN common stock. 1/4th of the restricted stock unit granted on February 20, 2026 will become vested on February 20, 2027 and shares will be delivered to reporting person on such date. 1/4th of restricted stock unit will vest annually thereafter and shares will be delivered to reporting person on such vest date. Represents the number of shares which may be issued at target under the market stock unit. If performance exceeds target, the maximum number of shares that may vest is 250% of the at target amount. Vesting, if any, of the market stock unit occurs on the last day of the third year of the Performance Period (as defined in the market stock unit agreement). 1/4th of the restricted stock unit granted on February 20, 2024 became vested on February 20, 2026 and shares were delivered to reporting person on such grant date. 1/4th of the restricted stock unit will continue to vest annually and shares will be delivered to reporting person on each such vest date. 1/4th of the restricted stock unit granted on February 20, 2025 became vested on February 20, 2026 and shares were delivered to reporting person on such grant date.1/4th of the restricted stock unit will continue to vest annually and shares will be delivered to reporting person on each such vest date. 1/4th of the restricted stock unit granted on February 20, 2022 became vested on February 20, 2026 and shares were delivered to reporting person on such grant date. The market stock unit granted on February 20, 2023 became vested on February 20, 2026 and shares were delivered to reporting person on such vest date. 1/4th of the restricted stock unit granted on February 20, 2023 became vested on February 20, 2026 and shares were delivered to reporting person on such grant date. 1/4th of the restricted stock unit will continue to vest annually and shares will be delivered to reporting person on each such vest date. /s/ Julie Ann Coletti 2026-02-24