Responsibility & Sustainability

Forward-Looking Statements

The disclosures included in this report are being provided to the public in an effort to provide transparency into our environmental, social, and governance (ESG) initiatives and do not cover all information about our business. Inclusion of information in this report is not an indication that the subject or information is material to Leidos business or operating results for purposes of U.S. securities laws and regulations. Our approaches to the disclosures included in this report are different from those included in mandatory regulatory reporting, including under Securities and Exchange Commission (SEC) regulations. Statements other than statements of historical or current facts, including statements and images about our ESG targets, goals, aspirations, commitments and programs, and other business plans, initiatives, and objectives are forward-looking statements and are based on Leidos management’s current assumptions and expectations. These statements are typically accompanied by the words “aim,” “ambition,” “anticipate,” “aspire,” “believe,” “can,” “commit,” “estimate,” “expect,” “forecast,” “goal,” “hope,” “intend,” “may,” “on track,” “plan,” “predict,” “project,” “strive,” “target,” “will,” “would,” or other similar words. All such statements are intended to enjoy the protection of the safe harbor for forward- looking statements within the meaning of Section 21E of the Securities Exchange Act of 1934, as amended. These statements speak only as of the date they are originally made and are based on management’s current expectations and are subject to known and unknown risks, uncertainties, changes in circumstances, and assumptions that are difficult to predict and are often beyond our control. These statements are not guarantees of future results, occurrences, or performance. Actual results and outcomes may differ materially from those expressed in or implied by any of these forward-looking statements due to a variety of factors, including global socio-demographic and economic trends, climate-related conditions and weather events, legislative and regulatory changes, and other unforeseen events or conditions. You should not place undue reliance on any forward-looking statement. Factors that could cause actual results to differ materially from those described in forward-looking statements can be found in this report, in our filings that we make with the SEC from time to time, and in disclosures available on our corporate website. We urge you to consider all of the risks, uncertainties, and factors identified above or discussed in this report carefully in evaluating the forward-looking statements therein. Leidos cannot assure you that the results reflected or implied by any forward-looking statement will be realized or, even if substantially realized, that those results will have the forecasted or expected consequences and effects. Standards of measurement and performance made in reference to the goals, aspirations, and objectives referred to in this report and our various ESG disclosures are developing and based on protocols, processes, and assumptions that continue to evolve and are subject to change in the future, and no assurances can be given that any plan, initiative, projection, goal, commitment, expectation, or prospect set forth in this report or our ESG disclosures can or will be achieved. We do not undertake to update forward-looking statements to reflect the impact of circumstances or events that arise after the date the forward-looking statements were made. Materiality, as used in this report, is different from the definition used in the context of filings with the SEC. Issues deemed material for purposes of this report and for purposes of determining our ESG strategies may not be considered material for SEC reporting purposes.