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 12months (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 submittedpursuant to Rule405 of RegulationS-T (§232.405 of this chapter) during the preceding 12months (or for such shorter period that the Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smallerreporting company, or an emerging growth company. See the definitions of “large accelerated filer,” “accelerated filer,” “smaller 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.o Indicate by check mark whether the registrant is a shell company (as defined in Rule12b-2 of the Exchange Act).Yes☐As of May2, 2025,153,443,342shares of the registrant’s common stock were outstanding. FORM10-Q FOR THE QUARTERLY PERIOD ENDED MARCH30, 2025 INDEX PARTI. FINANCIAL INFORMATION Item1.Financial StatementsCondensed Consolidated Balance Sheets atMarch30, 2025(unaudited) and December29,2024Condensed Consolidated Statements of Operations for the ThreeMonths EndedMarch30, 2025andMarch31,2024(unaudited)Condensed Consolidated Statements of Comprehensive Income (Loss) for theThreeMonths EndedMarch30, 2025andMarch31,2024(unaudited)Condensed Consolidated Statements of Stockholders’ Equity for theThreeMonths EndedMarch30, 2025andMarch31, 2024(unaudited)Condensed Consolidated Statements of Cash Flows for theThreeMonths EndedMarch30, 2025andMarch31,2024(unaudited)Notes to Condensed Consolidated Financial Statements (unaudited)Item2.Management’s Discussion and Analysis of Financial Condition and Results of Operations24Item3.Quantitative and Qualitative Disclosures About Market Risk31Item4.Controls and Procedures31 3 PARTII. OTHER INFORMATION Item1.Legal ProceedingsItem1A.Risk FactorsItem2.Unregistered Sales of Equity Securities and Use of ProceedsItem3.Defaults Upon Senior SecuritiesItem4.Mine Safety DisclosuresItem5.Other InformationItem6.Exhibits KRATOS DEFENSE& SECURITY SOLUTIONS,INC. (Unaudited) Note1.Summary of Significant Accounting Policies All references to the “Company” and “Kratos” refer to Kratos Defense& Security Solutions,Inc., a Delaware corporation, and itssubsidiaries. (a)Basis of Presentation The information as of March30, 2025 and for the three months ended March30, 2025 and March31, 2024 is unaudited. Thecondensed consolidated balance sheet as of December29, 2024 was derived from the Company’s audited consolidated financialstatements at that date. In the opinion of management, these unaudited condensed consolidated financial statements include alladjustments, consisting of normal recurring adjustments, necessary for a fair presentation of the Company’s financial position, resultsof operations and cash flows for the interim periods presented. The results have been prepared in accordance with the instructions toForm10-Q and do not necessarily include all information and footnotes necessary for presentation in accordance with accounting Certain prior year items have been reclassified to be consistent with current year presentation. (b)Principles of Consolidation The condensed consolidated financial statements include the accounts of the Company and its 100% owned subsidiaries. Allinter-company transactions have been eliminated in consolidation. On June 21, 2024, the Company purchased the remaining9.95%interest in KTT CORE, Inc., a Delaware corporation formerly known as KTT CORE, LLC (“KTT Core”) which previously had been (c)Fiscal Year The Company has a 52/53 week fiscal year ending on the last Sunday of the calendar year. The three month periods endedMarch30, 2025 and March31, 2024 consisted of 13-week periods. There are 52 calendar weeks in the fiscal years ending on (d)Use of Estimates There have been no significant changes in the Company’s accounting estimates for the three months ended March30, 2025 ascompared to the accounting estimates described in the Form 10-K. (e)Fair Value of Financial Instruments The Company uses forward exchange contracts to manage foreign currency risks associated with certain transactions,specifically forecasted materials and salaries paid in foreign currencies. The Company also has entered into an interest rate swapcontract in order to mitigate the exposure to interest rate movements associated with the Company’s Term Loan A. These derivativeinstruments are measured at fair value using observable market inputs such as interest rates. Based on these inputs, the