TRANSITION REPORT PURSUANT TO SECTION13 OR 15(d)OF THE SECURITIES EXCHANGE ACTOF 1934 ALIGN TECHNOLOGY,INC. (Exact name of registrant as specified in its charter)____________________________ 410 North Scottsdale Road, Suite 1300Tempe, Arizona 85288(Address of principal executive offices) (Zip Code)(602) 742-2000(Registrant’s telephone number, including area code)____________________________ Indicate by check mark whether the registrant (1)has filed all reports required to be filed by Section13 or 15(d)of the Securities Exchange Act of1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2)has been subject to such filingrequirements for the past 90 days.Yes☒No☐ Indicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule405of Regulation S-T (§232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit suchfiles).Yes☒No☐ Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smaller reporting company, oran emerging growth company.See the definitions of “large accelerated filer,” “accelerated filer,” “smaller reporting company,” and “emerging growthcompany” in Rule12b-2 of the Exchange Act. Large accelerated filer☒Non-accelerated filer☐Emerging growth company☐If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act.☐ Indicate by check mark whether the registrant is a shell company (as defined in Rule12b-2 of the Exchange Act).Yes☐No☒ As of May1, 2026, the number of shares outstanding of the registrant’s Common Stock, $0.0001 par value, was 71,618,127. ALIGN TECHNOLOGY, INC. TABLE OF CONTENTS PARTIFINANCIAL INFORMATIONItem1.Financial Statements (Unaudited):Condensed Consolidated Statements of OperationsCondensed Consolidated Statements of Comprehensive IncomeCondensed Consolidated Balance SheetsCondensed Consolidated Statements of Stockholders’ EquityCondensed Consolidated Statements of Cash FlowsNotes to Condensed Consolidated Financial StatementsItem2.Management’s Discussion and Analysis of Financial Condition and Results of OperationsItem3.Quantitative and Qualitative Disclosures About Market RiskItem4.Controls and ProceduresPARTIIOTHER INFORMATIONItem1.Legal ProceedingsItem1A.Risk FactorsItem2.Unregistered Sales of Equity Securities and Use of ProceedsItem3.Defaults Upon Senior SecuritiesItem4.Mine Safety DisclosuresItem5.Other InformationItem6.ExhibitsSignatures Invisalign, Align, the Invisalign logo, ClinCheck, Invisalign Assist, Invisalign First, Invisalign Go, the Invisalign sonic logo, Vivera,SmartForce, SmartTrack, SmartStage, SmileView, iTero, iTero Element, iTero Lumina, Orthocad, exocad, Align Digital Platform, Align OralHealth Suite, Invisalign Smile Architect, Smile Architect, iTero exocad Connector, exocad Dental CAD, and Cubicure, among others, aretrademarks and/or service marks of Align Technology,Inc. or one of its subsidiaries or affiliated companies and may be registered in theUnited States and/or other countries. PARTI—FINANCIAL INFORMATION ALIGN TECHNOLOGY, INC.CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS(in thousands, except per share data)(unaudited) ALIGN TECHNOLOGY, INC.CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME(in thousands)(unaudited) ALIGN TECHNOLOGY, INC.CONDENSED CONSOLIDATED BALANCE SHEETS(in thousands, except per share data)(unaudited) LIABILITIES AND STOCKHOLDERS’ EQUITY ALIGN TECHNOLOGY, INC.CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS(in thousands)(unaudited) ALIGN TECHNOLOGY, INC.NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS(unaudited) Note 1. Summary of Significant Accounting Policies Basis of Presentation and Preparation The accompanying unaudited Condensed Consolidated Financial Statements have been prepared by Align Technology, Inc. (“we”,“our”, the “Company” or “Align”) on a consistent basis with the audited Consolidated Financial Statements for the year endedDecember31, 2025, and contain all adjustments, including normal recurring adjustments, necessary to fairly state the information set forthherein. These unaudited Condensed Consolidated Financial Statements have been prepared in accordance with the rulesand regulations ofthe Securities and Exchange Commission (“SEC”), and, therefore, omit certain information and footnote disclosures necessary to presentthe unaudited Condensed Consolidated Financial Statements in accordance with accounting principles generally accepted in the UnitedStates of America (“U.S. GAAP”). The information included in this Quarterly Report on Form10-Q should be read in conjunction with the Consolidated FinancialSta