ALGN: Leadership change · Company disclosure

Item 5.02 Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers. On June 17, 2026, C. Raymond Larkin, Jr. notified the Board of Directors (the “Board”) of Align Technology, Inc. (the “Company”) that he will retire as Chairman of the Board effective July 1, 2026, and as a member of the Board effective December 31, 2026. Mr. Larkin’s decision to resign from the Board effective December 31, 2026 is not because of any disagreement with the Company on any matter relating to the Company ’ s operations, policies or practices, nor was he removed for cause. Also on June 17, 2026, the Board appointed Kevin Conroy, an independent director, to succeed Mr. Larkin as Chairman of the Board, effective July 1, 2026. Item 7.01 Regulation FD Disclosure. On June 18, 2026, the Company issued a press release announcing the Board leadership transition and the intention of Mr. Larkin to retire from the Board effective December 31, 2026. The full text of the press release is furnished as Exhibit 99.1 to this Current Report on Form 8-K. Item 9.01 Financial Statements and Exhibits. (d) Exhibits Exhibit No. Description 99.1 Press Release of Align Technology, Inc. Announcing Board Leadership Transition 104 Cover Page Interactive Data File (embedded within the Inline XBRL document) SIGNATURES Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized. ALIGN TECHNOLOGY, INC. By: /s/ Julie Coletti Julie Coletti Executive Vice President, Chief Legal and Regulatory Officer Date: June 19, 2026