Leidos Holdings Investor Presentation — November 2021

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Earnings Conference Call

November 2, 2021Forward-Looking Statements

2Certain statements in this release contain or are based on "forward-looking" information within the meaning of the Private Securities Litigation Reform Act of 1995. In some cases, you

can identify forward-looking statements by words such as "expects," "intends," "plans," "anticipates," "believes," "estimates," "guidance" and similar words or phrases. Forward-looking

statements in this release include, among others, estimates of our future growth and financial and operating performance, including future revenues, adjusted EBITDA margins, diluted

EPS (including on a non-GAAP basis), and cash flows provided by operating activities, as well as statements about our business contingency plans, uncertainties in tax due to new tax

legislation or other regulatory developments, the impact of COVID-19 and related actions taken to prevent its spread, our contract awards, strategy, planned investments, sustainability

goals and our future dividends, share repurchases, capital expenditures, debt repayments, acquisitions, dispositions, and cash flow conversion. These statements reflect our belief and

assumptions as to future events that may not prove to be accurate.

Actual performance and results may differ materially from those results anticipated by our guidance and other forward-looking statements made in this presentation depending on a

variety of factors, including, but not limited to: the impact of COVID-19 or future epidemics on our business, including the potential for facility closures, re-evaluation of U.S.

government spending levels and priorities, delay of new contract awards, supply chain impacts, airline travel levels, our ability to recover costs under contracts and insurance