Huntington Ingalls Industries — May 5, 2026 release

• Newport News, VA 23607 www.HII.com Page 3 of 12 HII Financial Outlook 1 • Reaffirming FY26 and medium term outlook • Medium term 2 HII revenue growth of approximately 6% • Medium term 2 shipbuilding revenue growth of approximately 6% • Medium term 2 Mission Technologies revenue growth of approximately 5% • FY26 shipbuilding revenue between $9.7 and $9.9 billion; expect shipbuilding operating margin 3 between 5.5% and 6.5% • FY26 Mission Technologies revenue between $3.0 and $3.2 billion, • FY26 Mission Technologies segment operating margin of approximately 5%; and Mission Technologies EBITDA margin 3 between 8.4% and 8.6% • FY26 free cash flow 3 between $500 and $600 million FY26 Outlook 1 Shipbuilding Revenue $9.7B - $9.9B Shipbuilding Operating Margin 3 5.5% - 6.5% Mission Technologies Revenue $3.0B - $3.2B Mission Technologies Segment Operating Margin ~5% Mission Technologies EBITDA Margin 3 8.4% - 8.6% Operating FAS/CAS Adjustment ($44M) Non-current State Income Tax Expense 4 ~($20M) Interest Expense ($105M) Non-operating Retirement Benefit $213M Effective Tax Rate ~17% Depreciation & Amortization ~$330M Capital Expenditures 4% - 5% of Sales Free Cash Flow 3 $500M - $600M 1 The financial outlook, expectations, and other forward-looking statements provided by the company for 2026 and beyond reflect the company's judgment based on the information available at the time of this release. Please see the "Forward-looking Statements" section in this release and our Form 10-Q for factors that may impact the company's ability to meet expectations. 2 Medium term growth represents our expected compound annual growth rate over the next three to five years. 3 Non-GAAP measures. See Exhibit B for definitions. In reliance upon Item 10(e)(1)(i)(B) of Regulation S-K, reconciliations of forward–looking GAAP and non–GAAP measures are not provided because of the unreasonable effort associated with providing such reconciliations due to the variability in the occurrence and the amounts of certain components of GAAP and non-GAAP measures. For the same reasons, we are unable to address the significance of the unavailable information, which could be material to future results. 4 Outlook is based on current tax law. Variability exists based on how and when individual states conform to recent federal tax law changes. HII 4101 Washington Ave. • N