Investor Presentaiton

Contract awards ($ Millions)* Book-to-bill ratio (TTM) Q1 2020 1.06 Q1 20211.44 $900 $600 $300 $357 $0 Q1 2020 Backlog ($ Billions)* ■Funded $2.7 $596 $1.4 Q1 2021 *Based on Q1 2021 financial performance released on May 4, 2021 Unfunded $3.0 $1.4 $1.6 $1.3 Q1 2020 Q1 2021 23 23

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