Fourth Quarter and Fiscal Year 2023 Financial Results

We Have Confidence in Our Business Model (In $ millions, except percentage data¹) 14% $132 FY23 Adj. EBITDA and Margin Note (1) Rounded amounts used. 7 © Mercury Systems, Inc. 6% $56 Impact of Challenged Programs Clear path to restore core profitability on current revenue base (2%) ($22) 100% Annual Incentive Plan Payout 2% $24 Annualized Cost Actions 2% $19 Program Mix Shift to Production Does not contain Technical Data. //Mercury Proprietary/No Tech Data// 22% $210 Focus on enhanced execution Illustrative Adj. EBITDA and Margin +++ Execution improvement IRAD efficiency Operating leverage Other Actions Mid-20% Potential Adj. EBITDA Margin mercury

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