FORM10-Q Quarterly Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 47-4116383 (I.R.S. EmployerIdentification No.) (State or other jurisdictionof incorporation or organization) Securities registered pursuant to Section 12(b) of the Act: Name of each exchange on which registered New York Stock Exchange 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 suchfiling requirements for the past 90 days.YesNo Indicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405of Regulation S-T (§232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submitsuch files).YesNo Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smaller reporting company, oremerging growth company. See definitions of “large accelerated filer,” “accelerated filer,” “smaller reporting company,” and “emerging growthcompany” in Rule 12b-2 of the Exchange Act. Large accelerated filerNon-accelerated filerEmerging 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 anynew 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 Rule 12b-2 of the Exchange Act).Yes☐No☒ As of April23, 2026, there were 736,749,788 shares outstanding of the registrant’s common stock, $0.01 par value per share, and 54,744,525 sharesoutstanding of the registrant’s Class B common stock, $0.01 par value per share. TABLE OF CONTENTS Part IFinancial InformationItem 1.Financial StatementsCondensed Consolidated Balance Sheets (Unaudited)Condensed Consolidated Statements of Operations (Unaudited)Condensed Consolidated Statements of Comprehensive Income (Loss) (Unaudited)Condensed Consolidated Statements of Stockholders’ Equity (Unaudited)Condensed Consolidated Statements of Cash Flows (Unaudited)Notes to Condensed Consolidated Financial Statements (Unaudited)1. Description of Business and Summary of Significant Accounting Policies2. Revenue and Receivables3. Segment Information4. Acquisitions and Divestitures5. Goodwill and Other Intangible Assets6. Debt7. Derivative Financial Instruments8. Income Taxes9. Equity10. Share-Based Compensation11. Earnings Per Share12. Commitments and Contingencies13. Leases14. Related Party TransactionsItem 2.Management’s Discussion and Analysis of Financial Condition and Results of OperationsItem 3.Quantitative and Qualitative Disclosures About Market RiskItem 4.Controls and Procedures Part IIOther InformationItem 1.Legal ProceedingsItem 1A.Risk FactorsItem 2.Unregistered Sales of Equity Securities and Use of ProceedsItem 3.Defaults Upon Senior SecuritiesItem 4.Mine Safety DisclosuresItem 5.Other InformationItem 6.ExhibitsSignatures PART I. FINANCIAL INFORMATION ITEM1. FINANCIAL STATEMENTS. ADT INC. AND SUBSIDIARIESCONDENSED CONSOLIDATED BALANCE SHEETS(Unaudited)(in thousands, except share and per share data) March 31, 2026December 31, 2025 ADT INC. AND SUBSIDIARIESCONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS(Unaudited)(in thousands, except per share data) ADT INC. AND SUBSIDIARIESCONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS)(Unaudited)(in thousands) Three Months Ended March 31,20262025Net income (loss)$168,374$140,246Other comprehensive income (loss), net of tax:Cash flow hedges and other14,3621,344Comprehensive income (loss)$182,736$141,590 ADT INC. AND SUBSIDIARIESCONDENSED CONSOLIDATED STATEMENTS OF STOCKHOLDERS’ EQUITY(Unaudited)(in thousands) ADT INC. AND SUBSIDIARIESCONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS(Unaudited)(in thousands) ADT INC. AND SUBSIDIARIESNOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS(Unaudited) 1.DESCRIPTION OF BUSINESS AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES Business and Organization ADT Inc., together with its wholly-owned subsidiaries (collectively, “ADT” or the “Company”), is a leading provider of security,interactive, and smart home solutions serving consumer and small business customers in the United States (“U.S.”). Basis of Presentation The condensed consolidated financial statements included herein: •have been prepared in U.S. dollars in accordance with generally accepted accounting principles in the United States ofAmerica (“GAAP”);•are comprised of the consolidated results of ADT Inc. and its wholly-owned subsidiaries for which all intercompanytransactions have been eliminated;•are unaudited, but in the opinion of manag