TENABLE HOLDINGS, INC.(Exact name of registrant as specified in its charter)__________________ Securities registered pursuant to Section 12(b) of the Act: Indicate by check mark whether the Registrant (1)has filed all reports required to be filed by Section13 or 15(d) of the SecuritiesExchange Act of 1934 during the preceding 12 months (or for such shorter period that the Registrant was required to file such reports), Indicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submitted pursuantto Rule 405 of Regulation S-T during the preceding 12 months (or for such shorter period that the registrant was required to submit Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smaller reportingcompany or an emerging growth company. See the definitions of “large accelerated filer,” “accelerated filer,” “smaller reporting 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 forcomplying 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 Rule 12b-2 of the Exchange Act). The number of shares of the Registrant's common stock outstanding as of May1, 2025 was122,170,671. TENABLE HOLDINGS, INC.TABLE OF CONTENTS PART I – FINANCIAL INFORMATION Item 1. Financial StatementsConsolidated Balance SheetsConsolidated Statements of OperationsConsolidated Statements of Comprehensive LossConsolidated Statements of Stockholders' EquityConsolidated Statements of Cash FlowsNotes to Consolidated Financial Statements1. Business and Summary of Significant Accounting Policies2. Revenue3. Cash Equivalents and Short-Term Investments4. Fair Value Measurements5. Property and Equipment, Net6. Acquisitions, Goodwill and Intangible Assets7. Leases8. Debt9. Commitments and Contingencies10. Stock-Based Compensation11. Income Taxes12. Net Loss Per Share13. Geographic Information Item 2.Management’s Discussion and Analysis of Financial Condition and Results of OperationsItem 3.Quantitative and Qualitative Disclosures About Market RiskItem 4.Controls and ProceduresPART II – OTHER INFORMATIONItem 1.Legal ProceedingsItem 1A.Risk FactorsItem 2.Unregistered Sales of Equity Securities and Use of ProceedsItem 6.ExhibitsSignatures Where You Can Find More Information Investors and others should note that we may announce material business and financial information to our investorsusing our investor relations website (https://investors.tenable.com), our filings with the Securities and ExchangeCommission (SEC), our website, webcasts, press releases, and conference calls. We use these mediums, including ourwebsite, to communicate with investors and the general public about our company, our products, and other issues, and forcomplying with our disclosure obligations under Regulation FD. It is possible that the information that we make availableon our website may be deemed to be material information. We therefore encourage investors and others interested in our TENABLE HOLDINGS, INC.NOTES TO CONSOLIDATED FINANCIAL STATEMENTS 1.Business and Summary of Significant Accounting Policies Business Description Tenable Holdings, Inc. (the “Company,” “we,” "us," or “our”) is a provider of exposure management solutions.Exposure managementis the evolution of vulnerability management, advancing risk assessment and prioritization acrossthe entire attack surface – from IT infrastructure to cloud environments to critical infrastructure. We unify security visibility, Basis of Presentation The accompanying consolidated financial statements include the accounts of Tenable Holdings, Inc. and our whollyowned subsidiaries and have been prepared in conformity with United States generally accepted accounting principles The consolidated statements are unaudited and should be read in conjunction with the consolidated financialstatements and related notes included in our 2024 Annual Report on Form 10-K ("10-K") filed with the Securities andExchange Commission on February 24, 2025. The consolidated financial statements have been prepared on a basis The results for the three months ended March 31, 2025 are not necessarily indicative of the operating resultsexpected for the year ending December31, 2025 or any other future period. Use of Estimates The preparation of consolidated financial statements in conformity with GAAP requires management to makeestimates and assumptions that affect the amounts reported in the consolidated financial statements and accompanyingnotes. These estimates include, but are not limited to, the determination of the estimated economic life of perpetuallicenses for revenue recognition, the estimated period of benefit for deferred commis