Slide 1: Earnings Conference Call First Quarter Fiscal Year 2026
Earnings Conference Call First Quarter Fiscal Year 2026 February 10, 2026 Advancing the future together A M E N T U M P R O P R I E T A R Y The appearance of U.S. Department of Defense (DOD) visual information does not imply or constitute DOD endorsement.
Slide 2: Forward Looking Statements and Disclaimers
Forward Looking Statements and Disclaimers Cautionary Note Regarding Forward Looking Statements This presentation contains or incorporates by reference statements that relate to future events and expectations and, as such, could be interpreted to be “forward-looking statements” as that term is defin
Slide 3: Key Highlights and Takeaways
Key Highlights and Takeaways 1 Solid Q1 performance demonstrates strength of global growth strategy and disciplined operational execution Revenue Q1 FY26 Performance $3.2B 2 Book-to-bill consistently above 1.0x with strategic wins reinforces portfolio strength and growth momentum Adjusted EBITDA1 $2
Slide 4: Delivering Growth with Key Awards in Accelerating Growth Markets
Delivering Growth with Key Awards in Accelerating Growth Markets BACKLOG AND NUCLEAR AWARDS OTHER Q1 FY26 HIGHLIGHTS LTM BOOK-TO-BILL ($’s in billions) U.S. Air Force Remotely Piloted Aircraft Rolls-Royce Small Modular Reactors 1.6x (SMRs) $995 million six-year single-award unmanned sustainment, Ame
Slide 5: Accelerating Growth Markets Leverage the New Amentum for the Future
Accelerating Growth Markets Leverage the New Amentum for the Future A CC ACCELERATING GROWTH MARKETS EL Well-positioned for growth in rapidly expanding market areas C ER OR AT I EG Global Nuclear Energy NG ROW T H A R Space Systems & Technologies Critical Digital Infrastructure Global Nuclear Energy
Slide 6: Space Systems & Technologies: A Rapidly Expanding Market
Space Systems & Technologies: A Rapidly Expanding Market • Growing demand for low-cost, • Key focus on exploration systems small satellites • Shift toward virtualization and cloud- Space Market Demand1 • Increasing reliance on LEO integrated command and control ($’s in Billions) constellations • Dev
Slide 7: Amentum’s Role Advancing the Future of Space
Amentum’s Role Advancing the Future of Space Deep Space Research and Development Nuclear Energy Amentum Provides and Propulsion Innovative Solutions to Explore the Limits of the Universe Space Habitat Deep Space and Operations1 Exploration Full Life Cycle for Human Exploration (RDT&E to Production a
Slide 8: Q1 FY26 Financial Performance
Q1 FY26 Financial Performance REVENUE 1 ADJUSTED EBITDA 1,2 ADJUSTED DILUTED EPS 2 Margin 2 -5% +3%3 –% +6% $3,416 $3,237 $3,304 $3,388 $262 $263 $0.54 $0.51 REPORTED NORMALIZED3 7.7% 8.1% Q1 FY25 Q1 FY26 Q1 FY25 Q1 FY26 Q1 FY25 Q1 FY26 Q1 FY25 Q1 FY26 New contract awards Margin expansion Lower inte
Slide 9: Q1 FY26 Segment Performance
Q1 FY26 Segment Performance Digital Solutions Global Engineering Solutions REVENUE1 ADJUSTED EBITDA1,2 REVENUE1 ADJUSTED EBITDA1,2 Margin2 Margin2 +4% +8%3 +3% -11% -1%3 -1% $1,370 $103 $2,130 $1,286 $1,337 $1,267 $100 $2,036 $2,018 $162 $1,900 $160 REPORTED NORMALIZED3 7.7% 7.7% REPORTED NORMALIZED
Slide 10: Rating Upgrade Underscores Strong Financial Profile
Rating Upgrade Underscores Strong Financial Profile Q1 FY26 Highlights ($142) Million Free Cash Flow1 • $136 million operating cash outflow; $6 million capital Invest for Continued debt reduction expenditures sustained and profitable (Target Net Leverage <3x) • Impacted by short-term collections tim
Slide 11: Reaffirming Fiscal Year 2026 Guidance
Reaffirming Fiscal Year 2026 Guidance Key Assumptions ($ in millions, FY26 Implied Underlying Income Statement Assumptions except per share data) Guidance Growth1 • Revenue contribution of ~95% from existing / recompete work and ~5% from new business Revenue $13,950 – $14,300 ~3% • Non-GAAP effectiv
Slide 12: Well-Positioned to Drive Long-Term Value for Stakeholders
Well-Positioned to Drive Long-Term Value for Stakeholders Longstanding, Trusted An Industry Leader With Strong Partner of Choice Differentiated Scale Financial Profile Solving our global customers’ Providing robust customer Well-positioned to deliver long- largest, most critical and access, capabili
Slide 13: Appendix
Appendix Advancing the future together A M E N T U M P R O P R I E T A R Y The appearance of U.S. Department of Defense (DOD) visual information does not imply or constitute DOD endorsement.
Slide 14: Appendix: Working Days & Payroll Periods
Appendix: Working Days & Payroll Periods Working Days Per Quarter Q1 Q2 Q3 Q4 FY FY 25 61 62 64 68 255 FY 26 60 63 63 64 250 Payroll Periods Per Quarter1 Q1 Q2 Q3 Q4 FY FY 25 6 7 6 7 26 FY 26 7 6 7 6 26 1 Represents Amentums primary pay cycle. AMENT U M P R OP R IET AR Y. AL L R IGHT S R ES ER VED .
Slide 15: Definitions of Non-GAAP Measures
Definitions of Non-GAAP Measures The presentation and discussion of Adjusted EBITDA, Adjusted EBITDA Margin, Non-GAAP Effective Tax Rate, Adjusted Net Income, Adjusted Diluted EPS, Free Cash Flow, and Net Leverage are not measures of financial performance under Generally Accepted Accounting Principl
Slide 16: Unaudited Non-GAAP Financials Measures Reconciliation
Unaudited Non-GAAP Financials Measures Reconciliation For the Three Months Ended January 2, 2026 ($ in millions, except per share data and margin percentages) Acquisition, Utilization of fair transaction and Amortization of market value Stock-based Non-GAAP As Reported integration costs intangibles
Slide 17: Unaudited Non-GAAP Financials Measures Reconciliation
Unaudited Non-GAAP Financials Measures Reconciliation For the Three Months Ended December 27, 2024 ($ in millions, except per share data and margin percentages) Acquisition, Utilization of fair transaction and Amortization of market value Stock-based Non-GAAP As Reported integration costs intangible