X0306 4 2023-02-08 0 0001097149 ALIGN TECHNOLOGY INC ALGN 0001233163 HOGAN JOSEPH M C/O ALIGN TECHNOLOGY INC. 410 NO. SCOTTSDALE RD., SUITE 1300 TEMPE AZ 85281 1 1 0 0 President and CEO Common Stock 2023-02-08 4 P 0 2928 341.50 A 188417 D Common Stock 1500 I See Footnotes Includes 88 shares acquired under the ALGN ESPP on January 31, 2023. These securities are held directly by the spouse of the Reporting Person. The Reporting Person disclaims beneficial ownership of these securities, and this report shall not be deemed an admission that the Reporting Person is the beneficial owner of the securities for purposes of Section 16 or any other purpose. /s/Julie Ann Coletti Attorney-in-Fact for Joseph Hogan 2023-02-09