GRI^™ Standards Index

This report has been prepared in accordance with the GRI^™Standards: Core option.

The GRI^™Standards emphasize materiality and focused sustainability reporting on the economic, environmental, and/or social impacts of an organization. The following index lists our responses to the GRI^™Standards: Core option (general disclosures and material topic-specific disclosures) and provides links to relevant report content on Leidos.com where appropriate.

Note: For each topic-specific disclosure, disclosures on Management Approach are contained in relevant sections on Leidos.com, including how Leidos manages each material topic, any associated impacts and boundaries, and related evaluations of management approach, where applicable.

Value Reporting Foundation - SASB Standards

We strive for continuous improvement, alignment with industry best practices, and leadership in corporate sustainably and responsibility. As a result, we periodically re-evaluate and update our sustainability and corporate responsibility programs and the ways in which we share our progress with stakeholders. In 2019 we produced our first Sustainability Accounting Standards Board (SASB) Disclosure Supplement. In the 2020 report, we integrated our GRI^™ Index and SASB Standards Disclosure into one index to provide a comprehensive view of our corporate performance. Where GRI supports broad and comprehensive disclosures on organizational impacts, SASB focuses on a subset of financially material issues by sector. The term “material” used in this report refers to the “material topic” definition of the Global Reporting Initiative. It is used to refer to relevant topics that can reasonably be considered important to an organization’s economic, environmental, and social impacts, or influencing the decisions of stakeholders. “Material” for the purposes of this report does not equate to any use of the word in other Company reporting or filings with the SEC.

General Standard Disclosures

General Disclosures are applicable to all organizations preparing sustainability reports and provide contextual information about an organization and its sustainability reporting practices. They include information about an organization’s profile, strategy, ethics and integrity, governance, stakeholder engagement practices, and reporting process.

Disclosure Number	Disclosure Title & Requirements	2020 Response
102-14	A statement from the most senior decision-maker of the organization (such as CEO, chair, or equivalent senior position) about the relevance of sustainability to the organization and its strategy for addressing sustainability.	CEO Message
102-15	Provide a description of key impacts, risks, and opportunities.	See the Leidos Annual Report on Form 10-K, Item 1, Business (Page 3-14) and Item 1A, Risk Factors (Pages 15-35). The Leidos Quarterly Report on Form 10-Q for the Quarterly Period ended October 1, 2021 also includes updated Risk Factors on page 33. Also see: CDP Climate Change Response 2020 and 2021 and the Executive Summary.

Disclosure Number

Disclosure Title & Requirements

2020 Response

102-14

A statement from the most senior decision-maker of the organization (such as CEO, chair, or equivalent senior position) about the relevance of sustainability to the organization and its strategy for addressing sustainability.

CEO Message

102-15

Provide a description of key impacts, risks, and opportunities.

See the Leidos Annual Report on Form 10-K, Item 1, Business (Page 3-14) and Item 1A, Risk Factors (Pages 15-35). The Leidos Quarterly Report on Form 10-Q for the Quarterly Period ended October 1, 2021 also includes updated Risk Factors on page 33.

Also see: CDP Climate Change Response 2020 and 2021 and the Executive Summary.

Disclosure Number	Disclosure Title & Requirements	2020 Response
102-1	Name of the organization	Leidos
102-2	Report the primary brands, products, and services, including an explanation of any products or services that are banned in certain markets.	See Leidos 2020 Annual Report on Form 10-K, Item 1, Business (Page 3-7)
Bu102-3	Report the location of the organization's headquarters.	1950 Presidents Street, Reston, VA 20190
102-4	Number of countries where the organization operates, and the names of countries where it has significant operations and/or that are relevant to the topics covered in the report.	People > Employee Demographics and Statistics and See Leidos 2020 Annual Report on Form 10-K, Properties, Page 35
102-5	Nature of ownership and legal form.	Corporation (LDOS)
102-6	Markets served including: Geographic locations where products and services are offered, sectors served, types of customers and beneficiaries.	See Leidos 2020 Annual Report on Form 10-K, Item 1, Business
102-7	Report the scale of the organization (total number of employees, operations, net sales, total capitalization, quantity of products/services provided).	See Leidos 2020 Annual Report on Form 10-K
102-8 and SASB TC-SI-330a.3 SASB TC-SI-330a.1	Total number of employees by employment contract (permanent and temporary), by gender. Total number of employees by employment contract (permanent and temporary), by region. Total number of employees by employment type (full-time and part-time), by gender. Whether a significant portion of the organization’s activities are performed by workers who are not employees. If applicable, a description of the nature and scale of work performed by workers who are not employees. Any significant variations in the numbers reported (such as seasonal variations in the tourism or agricultural industries). An explanation of how the data have been compiled, including any assumptions made.	People > Employee Demographics and Statistics As of January 1, 2021, we employed approximately 39,000 full and part-time employees of whom approximately 35,000 are in the United States and the remainder are in more than 35 countries worldwide. Approximately 36% of our employees have degrees in science, technology, engineering, or mathematics fields, approximately 22% of our employees have advanced degrees and approximately 20% of our employees are military veterans. Our full-time workforce is 33% female and 67% male. Our part-time workforce is 39% female and 61% male. Our temporary workforce is less than 1% of our population. Of that 1%, 28% is female and 72% male. 7.9% of our workforce is comprised of Foreign Nationals. Only 1.8% of our workforce is located offshore.
SASB TC-SI-330a.2	Employee Engagement as a percentage	See Leidos Employee Engagement Surveys
102-41	Stakeholder Engagement: Percentage of total employees covered by collective bargaining.	Currently, 0.6% of Leidos employees are covered by collective bargaining agreements.
102-9	A description of the organization's supply chain, including its main elements as they relate to the organization’s activities, primary brands, products, and services.	Supplier and Small Business Relationships
102-10	Significant changes to the organization’s size, structure, ownership, or supply chain, including: Changes in the location of, or changes in, operations, including facility openings, closings, and expansions; Changes in the share capital structure and other capital formation, maintenance, and alteration operations (for private sector organizations); Changes in the location of suppliers, the structure of the supply chain, or relationships with suppliers, including selection and termination.	See Leidos 2020 Annual Report on Form 10-K During fiscal 2020, we acquired Dynetics, Inc. and L3Harris Technologies' ("L3Harris") security detection and automation businesses and entered into a definitive agreement to acquire 1901 Group, LLC ("1901 Group"). The acquisition of 1901 Group was subsequently completed in January 2021. See "Note 6, Acquisitions" and "Note 26, Subsequent Events" in Part II of the Annual Report on Form 10-K for further information and "Note 7-Divestitures" in Part II of the Annual Report on Form 10-K. At Leidos our suppliers and subcontractors are critical to our success, and we remain committed to partnering with those suppliers that work to meet our needs and those of our customers. Most recently with our acquisition of L3Harris Technologies, we have integrated our Security Detection and Automation Supply Chain functions resulting in a compliant multinational team. This integration resulted in consolidating multiple ERPs into one ERP platform, inventory consolidation and reduction, purchase, sales order and AP clean-up, and integrated policies and procedures. We recently partnered with Kreller Group, a highly experienced investigation and consulting firm that performs background investigations and provides risk management advice. With this partnership, we collaborated to develop and institute an international trade compliance portal to supplement Leidos’ existing controls. The portal provides a dashboard and global purview of all intermediaries from which Leidos can initiate due diligence reports/investigations and monitor and manage the compliance of suppliers under Leidos policies and procedure.
102-11	Whether and how the organization applies the Precautionary Principal or approach.	Leidos maintains a corporate-level Enterprise Risk Management Council (ERMC) to review business activities that present or have the potential to present material risk to the company. Risks and their mitigation plans are identified by relevant operating units and functions. The ERMC reviews those plans to support the actions needed to mitigate, manage, and reduce the potential impact of those risks and that the steps taken are in-line with the company’s overall risk tolerance. Quarterly, the enterprise risk profile is presented to the Board of Directors with emphasis placed on the highest rated risks.
102-12	A list of externally developed economic, environmental and social charters, principles, or other initiatives to which the organization subscribes or which it endorses.	The Leidos Corporate Responsibility report is developed in compliance with the GRI Standards Reporting Framework. Additionally, Leidos subject matter experts participate in a number of collaborative efforts with stakeholders and external organizations. Leidos is a signatory of the following: Business Roundtable Purpose of a Corporation, Leidos CEO Pledge to End Addiction (https://www.leidos.com/ceo-pledge) and the Leidos CEO Pledge Collaborative - Action Group.
102-13	A list of the main memberships of industry or other associations, and national or international advocacy organizations.	Leidos participates in numerous professional industry associations and community/non-profit organizations related to our business as well as the communities in which employees live and work, respectively. Leidos employees hold leadership positions in many of these organizations.

Disclosure Number	Disclosure Title & Requirements	2020 Response
102-45	A list of all entities included in the organization’s consolidated financial statements or equivalent documents; Whether any entity included in the organization’s consolidated financial statements or equivalent documents is not covered by the report.	See Leidos 2020 Annual Report on Form 10-K
102-46	An explanation of the process for defining the report content and the topic Boundaries; An explanation of how the organization has implemented the Reporting Principles for defining report content.	About Our Reporting
102-47	List all the material aspects identified in the process for defining report content.	GRI Standards Index About Our Reporting
103-1	Explanation of the material topic and its Boundary An explanation of why the topic is material; The Boundary for the material topic, which includes a description of where the impacts occur; the organization’s involvement with the impacts. For example, whether the organization has caused or contributed to the impacts, or is directly linked to the impacts through its business relationships; Any specific limitation regarding the topic Boundary	All statements regarding our core values and commitment to data privacy, ethics, and integrity apply to the entire enterprise. References to numbers of employees and associated metrics apply to the entire enterprise, except where noted otherwise. Most employee benefit programs addressed within this report relate to Leidos U.S. operations, which make up the preponderance of our workforce, and may exclude certain U.S. subsidiaries. In keeping with our workforce distributions, this report highlights activities within our U.S. operations, including subsidiaries and leased facilities, while presenting selected data on our worldwide enterprise. Information about our business and financial performance, reported pursuant to our fiscal year ended on January 1, 2021, is provided in the Leidos 2020 Annual Report on Form 10-K
103-2	The management approach and its components An explanation of how the organization manages the topic. A statement of the purpose of the management approach. A description of the following, if the management approach includes that component: Policies; Commitments; Goals and targets; Responsibilities; Resources; Grievance mechanisms; Specific actions, such as processes, projects, programs and initiatives	The management approach for material topics is addressed in the introduction of the corresponding section of this report.
103-3	Evaluation of the management approach An explanation of how the organization evaluates the management approach, including: The mechanisms for evaluating the effectiveness of the management approach; The results of the evaluation of the management approach; Any related adjustments to the management approach.	A summary of the evaluation of our management approach is addressed in the introduction of the corresponding section of this report.
102-48	The effect of any restatements of information given in previous reports, and the reasons for such restatements.	There were no major restatements during the CY 2020. Note: While not major, in 2019, we included a graphic that showed our Environmental and Energy Civil Revenue to be $1.8 billion dollars. That was an error and the actual revenue figure for that work was $1.08 Billion. We updated and replaced the graphic on our website.
102-49	Significant changes from previous reporting periods in the list of material topics and topic boundaries.	This report contains no significant changes to scope, boundary, or measurement methods used in previously published corporate responsibility reports.

Disclosure Number	Disclosure Title & Requirements	2020 Response
102-40	A list of stakeholder groups engaged by the organization.	About Our Reporting
102-42	The basis for identifying and selecting stakeholders with whom to engage.	About Our Reporting
102-43	The organization’s approach to stakeholder engagement, including frequency of engagement by type and by stakeholder group, and an indication of whether any of the engagement was undertaken specifically as part of the report preparation process.	About Our Reporting
102-44	Key topics and concerns that have been raised through stakeholder engagement, including: How the organization has responded to those key topics and concerns, including through its reporting; The stakeholder groups that raised each of the key topics and concerns.	This is addressed with the relevant topics reported.

Disclosure Number	Disclosure Title & Requirements	2020 Response
102-50	Reporting period for the information provided.	Calendar year 2020
102-51	If applicable, the date of the most recent previous report.	Fall, 2020 (covering the previous calendar year 2019).
102-52	Reporting cycle.	Annual
102-53	The contact point for questions regarding the report or its content.	[email protected]
102-54	The claim made by the organization, if it has prepared a report in accordance with the GRI Standards, either: ‘This report has been prepared in accordance with the GRI Standards: Core option’; ‘This report has been prepared in accordance with the GRI Standards: Comprehensive option’	This report has been prepared in accordance with the GRI Standards: Core option.
102-55	The GRI content index, which specifies each of the GRI Standards used and lists all disclosures included in the report. For each disclosure, the content index shall include: The number of the disclosure (for disclosures covered by the GRI Standards); The page number(s) or URL(s) where the information can be found, either within the report or in other published materials; If applicable, and where permitted, the reason(s) for omission when a required disclosure cannot be made.	GRI Standards Index
102-56	A description of the organization’s policy and current practice with regard to seeking external assurance for the report. If the report has been externally assured: A reference to the external assurance report, statements, or opinions. If not included in the assurance report accompanying the sustainability report, a description of what has and what has not been assured and on what basis, including the assurance standards used, the level of assurance obtained, and any limitations of the assurance process; The relationship between the organization and the assurance provider; Whether and how the highest governance body or senior executives are involved in seeking external assurance for the organization’s sustainability report.	Leidos GRI reports are not currently externally assured. However, our greenhouse gas emissions data is externally assured by a third party.

Disclosure Number	Disclosure Title & Requirements	2020 Response
102-18	Governance structure of the organization, including committees of the highest governance body. Committees responsible for decision-making on economic, environmental, and social topics.	Our Board recognizes the importance of strong corporate governance to address the interests of our stockholders, employees, customers, and other stakeholders. As a result, our Board has adopted Corporate Governance Guidelines which, together with our certificate of incorporation, bylaws, committee charters and other key governance practices and policies, provide the framework for our corporate governance. Our Corporate Governance Guidelines cover a wide range of subjects, including criteria for determining the independence and qualification of our directors. Please see the Corporate Governance section of our website as well as the 2021 Proxy Statement, Pages 8 to 18 for detailed information on our Governance structure. The Corporate Governance and Ethics Committee regularly reviews corporate governance developments and recommends revisions to these Corporate Governance Guidelines and other corporate governance documents as necessary to promote our stockholders’ best interests and to support our compliance with all applicable laws, regulations, and stock exchange requirements. Our Board and the Corporate Governance and Ethics Committee regularly review with management environmental, social and governance issues that may significantly impact our business operations, reputation or relations with employees, customers, stockholders, and other constituents at least quarterly. In addition, our Board and the Human Resources and Compensation Committee regularly review with management our diversity and inclusion initiatives, including recruitment, training, and development, as well as employee benefits and resources, and discusses metrics relating to such initiatives at least quarterly.

Disclosure Number

Disclosure Title & Requirements

2020 Response

102-18

Governance structure of the organization, including committees of the highest governance body.

Committees responsible for decision-making on economic, environmental, and social topics.

Our Board recognizes the importance of strong corporate governance to address the interests of our stockholders, employees, customers, and other stakeholders. As a result, our Board has adopted Corporate Governance Guidelines which, together with our certificate of incorporation, bylaws, committee charters and other key governance practices and policies, provide the framework for our corporate governance. Our Corporate Governance Guidelines cover a wide range of subjects, including criteria for determining the independence and qualification of our directors. Please see the Corporate Governance section of our website as well as the 2021 Proxy Statement, Pages 8 to 18 for detailed information on our Governance structure.

The Corporate Governance and Ethics Committee regularly reviews corporate governance developments and recommends revisions to these Corporate Governance Guidelines and other corporate governance documents as necessary to promote our stockholders’ best interests and to support our compliance with all applicable laws, regulations, and stock exchange requirements. Our Board and the Corporate Governance and Ethics Committee regularly review with management environmental, social and governance issues that may significantly impact our business operations, reputation or relations with employees, customers, stockholders, and other constituents at least quarterly. In addition, our Board and the Human Resources and Compensation Committee regularly review with management our diversity and inclusion initiatives, including recruitment, training, and development, as well as employee benefits and resources, and discusses metrics relating to such initiatives at least quarterly.

Disclosure Number	Disclosure Title & Requirements	2020 Response
102-16	A description of the organization’s values, principles, standards, and norms of behavior.	Ethics and Compliance
102-17	A description of internal and external mechanisms for: Seeking advice about ethical and lawful behavior, and organizational integrity; Reporting concerns about unethical or unlawful behavior, and organizational integrity.	Ethics and Compliance - Reporting Channels and Investigations Case Management

Disclosure Number

Disclosure Title & Requirements

2020 Response

102-16

A description of the organization’s values, principles, standards, and norms of behavior.

Ethics and Compliance

102-17

A description of internal and external mechanisms for:

Seeking advice about ethical and lawful behavior, and organizational integrity;
Reporting concerns about unethical or unlawful behavior, and organizational integrity.

Ethics and Compliance - Reporting Channels and Investigations Case Management

Topic-Specific Disclosures

Topic-specific disclosures include information on an organization’s impacts related to material economic, environmental, and social topics and disclosures on Management Approach. Topic-specific disclosures deemed material to Leidos are presented below according to the three Topic-specific Standards — Economic, Environmental and Social.

Economic

Disclosure Number	Disclosure Title & Requirements	2020 Response
201-1	Direct economic value generated and distributed Direct economic value generated and distributed (EVG&D) on an accruals basis, including the basic components for the organization’s global operations as listed below. If data are presented on a cash basis, report the justification for this decision in addition to reporting the following basic components: Direct economic value generated: revenues; Economic value distributed: operating costs, employee wages and benefits, payments to providers of capital, payments to government by country, and community investments; Economic value retained: 'direct economic value generated’ less ‘economic value distributed’. Where significant, report EVG&D separately at country, regional, or market levels, and the criteria used for defining significance.	Leidos 2020 Annual Report on Form 10-K Community > Corporate Philanthropy
201-2	Financial implications and other risks and opportunities for the organization's activities due to climate change Risks and opportunities posed by climate change that have the potential to generate substantive changes in operations, revenue, or expenditure, including: A description of the risk or opportunity and its classification as either physical, regulatory, or other; A description of the impact associated with the risk or opportunity; The financial implications of the risk or opportunity before action is taken; The methods used to manage the risk or opportunity; The costs of actions taken to manage the risk or opportunity.	Leidos reports relevant climate change risks and opportunities through CDP.  Information on climate-related risks and opportunities are outlined in section C2 - Risks and Opportunities.
SASB TC-SI550a.1	Managing Systemic Risks from Technology Disruptions Number of Performance issues Service disruptions; Total customer downtime	Not Currently Reported
SASB TC-SI550a.2	Description of business continuity risks related to disruptions of operations	Risks and potential risks are identified and incidents (manmade disasters, extreme weather, epidemics/pandemics, natural disasters) are tracked that could result in either short and/or long-term disruptions. For the identified risks to business operations and/or information technology operations, the potential for material adverse impacts to Leidos’ ability to provide goods and services to our clients or meet performance or contractual obligations is assessed, including in terms of possible reputational damage, loss of investor confidence, financial impacts, or legal impairment. Continuity measures are implemented and monitored as appropriate across business operations and information technology operations to mitigate identified potential material adverse impacts
201-3	Defined benefit plan obligations and other retirement plans If the plan’s liabilities are met by the organization’s general resources, the estimated value of those liabilities. If a separate fund exists to pay the plan’s pension liabilities: The extent to which the scheme’s liabilities are estimated to be covered by the assets that have been set aside to meet them; The basis on which that estimate has been arrived at; When that estimate was made. If a fund set up to pay the plan’s pension liabilities is not fully covered, explain the strategy, if any, adopted by the employer to work towards full coverage, and the timescale, if any, by which the employer hopes to achieve full coverage. Percentage of salary contributed by employee or employer. Level of participation in retirement plans, such as participation in mandatory or voluntary schemes, regional, or country-based schemes, or those with financial impact.	As of January 1, 2021, the Leidos Biomedical Research defined benefit plan has 578 active employees (with balances), 509 deferred vested participants and 695 former employees receiving pensions. According to the most recent actuarial valuation, the Plan is approximately 110 percent funded, on a stabilized funding basis. This plan was fully frozen on August 30, 2019. All participant accruals are fully frozen. The second plan includes, as of June 30, 2021 the Calanais Pension trustee Co., LTD sponsored plan included 140 deferred members, 80 pensioner members (including 7 dependent pensioner members) and funding level as of March 31, 2021 of 120%.

Environmental

Disclosure Number	Disclosure Title & Requirements	2020 Response
302-1	Energy consumption within the organization: Total fuel consumption within the organization from non-renewable sources, in joules or multiples, and including fuel types used. Total fuel consumption within the organization from renewable sources, in joules or multiples, and including fuel types used. In joules, watt-hours or multiples, the total: electricity consumption heating consumption cooling consumption steam consumption In joules, watt-hours or multiples, the total: electricity sold heating sold cooling sold steam sold Total energy consumption within the organization, in joules or multiples. Standards, methodologies, assumptions, and/or calculation tools used. Source of the conversion factors used.	Environment > Corporate Footprint and Environmental Stewardship Leidos followed the World Resource Institute and the World Business Council for Sustainable Development (WRI/WBCSD) GHG Protocol Corporate Accounting and Reporting Standard (Revised Edition) and The Climate Registry (TCR) General Reporting Protocol v2.1 for data collection and calculation methods, assumptions, and conversion factors. Building-specific Assumptions: For owned buildings and leased buildings where Leidos is responsible for paying utility bills, electricity and natural gas data were collected from utility billing information. For leased buildings where Leidos is not responsible for paying electricity bills, electricity consumption   was estimated using the average intensity method described in The Climate Registry's (TCR) General Reporting Protocol v3.0. This method multiplies the floor area of each lease by an assumed electricity intensity factor based on building type from the U.S. Energy Information Administration's (EIA) Commercial Buildings Energy Consumption Survey for 2012 (CBECS 2012). The resulting consumption was prorated based on the fraction of the year for which Leidos occupied each lease. For leased buildings where Leidos is not responsible for paying natural gas bills, natural gas consumption was estimated using the average intensity method described in The Climate Registry's (TCR) General Reporting Protocol v3.0. This method multiplies the floor area of each lease by an assumed natural gas intensity factor based on building type from the U.S. Energy Information Administration's (EIA) Commercial Buildings Energy Consumption Survey for 2012 (CBECS 2012). The resulting consumption was prorated based on the fraction of the year for which Leidos occupied each lease. Diesel fuel use for generators at owned facilities was estimated by multiplying the number of hours each generator was in use during the calendar year by the fuel consumption rate (gallons per hour) specific to each generator model. Leidos-occupied floor area is reported as an annual equivalent value. The floor area of each lease is prorated according to the fraction of the year each lease was active. For example, a 10,000 ft2 office lease occupied by Leidos for half the year is equivalent to 5,000 ft2 occupied for the entire year. Fleet-specific Assumptions: Leidos vehicle data is taken from insurance policy data that is updated on a quarterly basis. *Fuel consumption was prorated based on the disposal date of the vehicle. If the vehicle did not have a disposal date, it was conservatively assumed to have been used for the entire calendar year.
302-2	Energy consumption outside of the organization: Energy consumption outside of the organization, in joules or multiples. Standards, methodologies, assumptions, and/or calculation tools used. Source of the conversion factors used.	Environment > Corporate Footprint and Environmental Stewardship
302-3	Energy intensity: Energy intensity ratio for the organization. Organization-specific metric (the denominator) chosen to calculate the ratio Types of energy included in the intensity ratio; whether fuel, electricity, heating, cooling, steam, or all. Whether the ratio uses energy consumption within the organization, outside of it, or both.	The following metrics exclude energy consumption and floorspace from organizations acquired in 2020. Once data are available for those acquisitions, metrics will be updated accordingly. 83 kBtu/ft2 (buildings energy only, fleet vehicle energy excluded). Natural gas and electricity consumption in owned and leased buildings. Leidos does not purchase heating, cooling, steam, or any other fuels. Fleet vehicle fuel consumption is not captured because the base metric of the intensity ratio is floor area of buildings. Note that fleet vehicle fuel consumption accounts for less than 2% of total energy. Total owned and lease floor area is about 7,062,711 ft2 (Leidos-occupied floor area only, subleased floor area excluded) Natural gas and electricity consumption in owned and leased buildings. Leidos does not purchase heating, cooling, steam, or any other fuels. Fleet vehicle fuel consumption is not captured because the base metric of the intensity ratio is floor area of buildings. Note that fleet vehicle fuel consumption accounts for less than 2% of total energy. All reported energy is consumed within the organization.
302-4	Reduction of energy consumption: Amount of reductions in energy consumption achieved as a direct result of conservation and efficiency initiatives, in joules or multiples. Types of energy included in the reductions; whether fuel, electricity, heating, cooling, steam, or all. Basis for calculating reductions in energy consumption, such as base year or baseline, including the rationale for choosing it. Standards, methodologies, assumptions, and/or calculation tools used.	Environment > Corporate Footprint and Environmental Stewardship Leidos completed 1 lighting retrofit and 11 HVAC projects across 9 facilities in 2020. These projects are estimated to save 2,380 GJ per year. Electricity is the only fuel type included in these reductions. The baselines for calculating reductions were the estimated annual energy consumption of the original systems and equipment. Reductions were calculated by comparing the estimated annual energy consumption of the new systems and equipment to the baseline consumption for original systems and equipment. Savings were determined as a function of improved efficiency ratings. Operating hours and service demands/loads were assumed to be the same for the baseline and upgraded systems.
SASB TC-SI-130a.3	Discussion of the integration of environmental considerations into strategic planning for data center needs.	Environment > Corporate Footprint and Environmental Stewardship As a company that primarily provides services to the Federal government, Leidos has a relatively small environmental footprint. Except for a small number of owned facilities in the US, we lease office space in various locations throughout the world. Leidos works in partnership with our data center providers to reduce power consumption and thereby its CO2 emissions footprint. Today, Leidos is using a fraction of the power that historically we've been associated with, and continue to strive toward power consumption levels that are reflective of our commitment to responsible data center governance.

Disclosure Number	Disclosure Title & Requirements	2020 Response
305-1	Direct greenhouse gas (GHG) emissions (Scope 1): Gross direct (Scope 1) GHG emissions in metric tons of CO₂ equivalent. Gases included in the calculation; whether CO₂, CH₄, N₂O, HFCs, PFCs, SF₆, NF₃, or all. Biogenic CO₂ emissions in metric tons of CO₂ equivalent. Base year for the calculation, if applicable, including: the rationale for choosing it; emissions in the base year; the context for any significant changes in emissions that triggered recalculations of base year emissions. Source of the emission factors and the global warming potential (GWP) rates used, or a reference to the GWP source. Consolidation approach for emissions; whether equity share, financial control, or operational control. Standards, methodologies, assumptions, and/or calculation tools used.	1, 2, 3. See Environment > Corporate Footprint and Environmental Stewardship 4. Base year and rationale: i. Leidos utilizes a 2010 base year, because it was the year that Leidos began quantifying and reporting GHG emissions. Since most of our GHG emissions result from energy, 2010 is a logical base year for measuring energy savings also. In addition to measuring against the base year, Leidos finds it informative to measure year-over-year performance improvements. ii. Base year market-based Scope 1 GHG emissions were 2,847 metric tons of CO2 equivalent iii. There were no significant changes in emissions that triggered recalculations of base year emissions. Emissions from organizations acquired in 2020 are not captured in our base year GHG inventory. Once data are available, Leidos will likely select a new base year that incorporates these acquisitions. 5. Scope 1 emission factors were sourced from the U.S. EPA Emission Factors Hub. Global Warming Potential (GWP) factors were sourced from the IPCC Fourth Assessment Report (AR4). 6. Leidos uses an operational control consolidation approach for emissions. 7. Leidos followed the World Resource Institute and the World Business Council for Sustainable Development (WRI/WBCSD) GHG Protocol Corporate Accounting and Reporting Standard (Revised Edition) and The Climate Registry (TCR) General Reporting Protocol v2.1 for data collection and calculation methods, assumptions, and conversion factors. Building-specific Assumptions: For owned buildings and leased buildings where Leidos is responsible for paying utility bills, electricity and natural gas data were collected from utility billing information. For leased buildings where Leidos is not responsible for paying electricity bills, electricity consumption   was estimated using the average intensity method described in The Climate Registry's (TCR) General Reporting Protocol v3.0. This method multiplies the floor area of each lease by an assumed electricity intensity factor based on building type from the U.S. Energy Information Administration's (EIA) Commercial Buildings Energy Consumption Survey for 2012 (CBECS 2012). The resulting consumption was prorated based on the fraction of the year for which Leidos occupied each lease. For leased buildings where Leidos is not responsible for paying natural gas bills, natural gas consumption was estimated using the average intensity method described in The Climate Registry's (TCR) General Reporting Protocol v3.0. This method multiplies the floor area of each lease by an assumed natural gas intensity factor based on building type from the U.S. Energy Information Administration's (EIA) Commercial Buildings Energy Consumption Survey for 2012 (CBECS 2012). The resulting consumption was prorated based on the fraction of the year for which Leidos occupied each lease. Diesel fuel use for generators at owned facilities was estimated by multiplying the number of hours each generator was in use during the calendar year by the fuel consumption rate (gallons per hour) specific to each generator model. Leidos-occupied floor area is reported as an annual equivalent value. The floor area of each lease is prorated according the fraction of the year each lease was active. For example, a 10,000 ft2 office lease occupied by Leidos for half the year is equivalent to 5,000 ft2 occupied for the entire year. Fleet-specific Assumptions: Leidos vehicle data is taken from insurance policy data that is updated on a quarterly basis. Fuel consumption was prorated based on the disposal date of the vehicle. If the vehicle did not have a disposal date, it was conservatively assumed to have been used for the entire calendar year. Leidos vehicle data is taken from insurance policy data that is updated on a quarterly basis.
305-2	Energy indirect (Scope 2) GHG emissions: Gross location-based energy indirect (Scope 2) GHG emissions in metric tons of CO₂ equivalent. If applicable, gross market-based energy indirect (Scope 2) GHG emissions in metric tons of CO₂ equivalent. If available, the gases included in the calculation; whether CO₂, CH₄, N₂O, HFCs, PFCs, SF₆, NF₃, or all. Base year for the calculation, if applicable, including: the rationale for choosing it; emissions in the base year; the context for any significant changes in emissions that triggered recalculations of base year emissions. Source of the emission factors and the global warming potential (GWP) rates used, or a reference to the GWP source. Consolidation approach for emissions; whether equity share, financial control, or operational control. Standards, methodologies, assumptions, and/or calculation tools used.	1,2,3. See Environment > Corporate Footprint and Environmental Stewardship 4. Base year and rationale: i. Leidos utilizes a 2010 base year, because it was the year that Leidos began quantifying and reporting GHG emissions. Since most of our GHG emissions result from energy, 2010 is a logical base year for measuring energy savings also. In addition to measuring against the base year, Leidos finds it informative to measure year-over-year performance improvements. ii. Base year market-based Scope 2 GHG emissions were 114,136 metric tons of CO2 equivalent iii. There were no significant changes in emissions that triggered recalculations of base year emissions. Emissions from organizations acquired in 2020 are not captured in our base year GHG inventory. Once data are available, Leidos will likely select a new base year that incorporates these acquisitions. 5. Scope 2 emission factors were sourced from Green-e Residual Mix Factors, U.S. EPA eGRID and Emission Factors Hub, UK DEFRA conversion factors, AIB European Residual Mixes, and Australia's National Greenhouse Accounts Factors. Global Warming Potential (GWP) factors were sourced from the IPCC Fourth Assessment Report (AR4). 6. Leidos uses an operational control consolidation approach for emissions. 7. Leidos followed the World Resource Institute and the World Business Council for Sustainable Development (WRI/WBCSD) GHG Protocol Corporate Accounting and Reporting Standard (Revised Edition) and The Climate Registry (TCR) General Reporting Protocol v2.1 for data collection and calculation methods, assumptions, and conversion factors. Building-specific Assumptions: For owned buildings and leased buildings where Leidos is responsible for paying utility bills, electricity and natural gas data were collected from utility billing information. For leased buildings where Leidos is not responsible for paying electricity bills, electricity consumption   was estimated using the average intensity method described in The Climate Registry's (TCR) General Reporting Protocol v3.0. This method multiplies the floor area of each lease by an assumed electricity intensity factor based on building type from the U.S. Energy Information Administration's (EIA) Commercial Buildings Energy Consumption Survey for 2012 (CBECS 2012). The resulting consumption was prorated based on the fraction of the year for which Leidos occupied each lease. For leased buildings where Leidos is not responsible for paying natural gas bills, natural gas consumption was estimated using the average intensity method described in The Climate Registry's (TCR) General Reporting Protocol v3.0. This method multiplies the floor area of each lease by an assumed natural gas intensity factor based on building type from the U.S. Energy Information Administration's (EIA) Commercial Buildings Energy Consumption Survey for 2012 (CBECS 2012). The resulting consumption was prorated based on the fraction of the year for which Leidos occupied each lease. Diesel fuel use for generators at owned facilities was estimated by multiplying the number of hours each generator was in use during the calendar year by the fuel consumption rate (gallons per hour) specific to each generator model. Leidos-occupied floor area is reported as an annual equivalent value. The floor area of each lease is prorated according the fraction of the year each lease was active. For example, a 10,000 ft2 office lease occupied by Leidos for half the year is equivalent to 5,000 ft2 occupied for the entire year. Fleet-specific Assumptions: Leidos vehicle data is taken from insurance policy data that is updated on a quarterly basis. Fuel consumption was prorated based on the disposal date of the vehicle. If the vehicle did not have a disposal date, it was conservatively assumed to have been used for the entire calendar year. Leidos vehicle data is taken from insurance policy data that is updated on a quarterly basis.
305-3	Other indirect greenhouse gas (GHG) emissions (Scope 3): Gross other indirect (Scope 3) GHG emissions in metric tons of CO₂ equivalent. If available, the gases included in the calculation; whether CO₂, CH₄, N₂O, HFCs, PFCs, SF₆, NF₃, or all. Biogenic CO₂ emissions in metric tons of CO₂ equivalent. Other indirect (Scope 3) GHG emissions categories and activities included in the calculation. Base year for the calculation, if applicable, including: the rationale for choosing it; emissions in the base year; the context for any significant changes in emissions that triggered recalculations of base year emissions. Source of the emission factors and the global warming potential (GWP) rates used, or a reference to the GWP source. Standards, methodologies, assumptions, and/or calculation tools used.	1, 2, 3. See Environment > Corporate Footprint and Environmental Stewardship 4. Other indirect (Scope 3) GHG emissions categories include business travel and employee commuting. Business travel includes transportation of employees for business-related activities in vehicles not owned or operated by Leidos, including aircraft, trains, and passenger cars (rental cars). Employee commuting includes transportation of employees between their homes and their worksites. 5. Base year and rationale: i. Leidos finds it informative to measure year-over-year performance improvements. ii. 2019 market-based Scope 3 GHG emissions were 89,511 metric tons of CO2 equivalent iii. There were no significant changes in emissions that triggered recalculations of base year emissions. Emissions from organizations acquired in 2020 are not captured in our base year GHG inventory. Once data are available, Leidos will likely select a new base year that incorporates these acquisitions. 6. Scope 3 emission factors were sourced from U.S. EPA Emission Factors Hub. Global Warming Potential (GWP) factors were sourced from the IPCC Fourth Assessment Report (AR4). 7. Leidos applied the Greenhouse Gas Reporting Protocol Corporate Value Chain (Scope 3) Accounting and Reporting Standard to calculate scope 3 emissions. For business travel, Leidos obtained air and rail travel mileage data from corporate travel service providers. Leidos obtained rental car mileage and fuel consumption data from corporate rental car providers. For employee commuting, Leidos used employee count and telework data from corporate human resources along with commuter statistics (e.g., mode share and average trip length) from national transportation surveys in the U.S., UK, and Australia. For the U.S., mode share and average trip length data were sourced from the National Household Travel Survey (NHTS) conducted by the U.S. Federal Highway Administration (FHWA). For the UK, mode share and average trip length data were sourced from the National Travel Survey conducted by the UK Department for Transport. For Australia, mode share and average trip length data were sourced from the Australian Census. To account for the impacts of the COVID- 19 Pandemic, total estimated commute trips for 2020 were down-adjusted in proportion to the drop in building occupancy rates from building access badge swipe data.
305-4	Greenhouse gas (GHG) emissions intensity: GHG emissions intensity ratio for the organization. Organization-specific metric (the denominator) chosen to calculate the ratio. Types of GHG emissions included in the intensity ratio; whether direct (Scope 1), energy indirect (Scope 2), and/or other indirect (Scope 3). Gases included in the calculation; whether CO₂, CH₄, N₂O, HFCs, PFCs, SF₆, NF₃, or all.	Leidos monitors the GHG intensity of our revenue and workforce. In 2020, the GHG intensity of our revenue was 4.4 mtCO2e/$1M and the GHG intensity of our workforce was 1.4 mtCO2e/FTE employee. These ratios exclude emissions, revenue, and employees from organizations acquired in 2020. Once data are available, these ratios will be updated to incorporate these acquisitions. The denominators for 2020 intensity ratios were $11.117B revenue 35,930 FTE employees. Data from organizations acquired in 2020 are not included in these figures. Once data are available, these figures will be updated to incorporate these acquisitions. All direct (Scope 1), energy indirect (Scope 2) market-based emissions from buildings and fleet vehicles are included in the intensity ratios. All gases are included in these ratios, however, Leidos emissions are zero for some gases.
305-5	Reduction of greenhouse gas (GHG) emissions: GHG emissions reduced as a direct result of reduction initiatives, in metric tons of CO₂ equivalent. Gases included in the calculation; whether CO₂, CH₄, N₂O, HFCs, PFCs, SF₆, NF₃, or all. Base year or baseline, including the rationale for choosing it. Scopes in which reductions took place; whether direct (Scope 1), energy indirect (Scope 2), and/or other indirect (Scope 3). Standards, methodologies, assumptions, and/or calculation tools used.	Leidos completed 1 lighting retrofit and 11 HVAC projects across 9 facilities in 2020. These projects are estimated to save 224 mtCO2e per year. All gases are included in these calculations, however, Leidos emissions are zero for some gases. The baselines for calculating reductions were the estimated annual GHG emissions of the original systems and equipment. All reductions were energy indirect (Scope 2). Reductions were calculated by comparing the estimated annual energy consumption of the new systems and equipment to the baseline consumption for original systems and equipment. Savings were determined as a function of improved efficiency ratings. Operating hours and service demands/loads were assumed to be the same for the baseline and upgraded systems. Energy savings were translated to GHG emissions savings using Green-e Residual Mix emission factors and IPCC AR4 GWP factors.

Disclosure Number	Disclosure Title & Requirements	2020 Response
306-2	Waste by type and disposal method: Report the total weight of hazardous and non-hazardous waste, by the following disposal methods: Reuse Recycling Composting Recovery, including energy recovery Incineration (mass burn) Deep well injection Landfill On-site storage Other (to be specified by the organization) Total weight of non-hazardous waste, with a breakdown by the following disposal methods where applicable: Reuse Recycling Composting Recovery, including energy recovery Incineration (mass burn) Deep well injection Landfill On-site storage Other (to be specified by the organization) How the waste disposal method has been determined: Disposed of directly by the organization, or otherwise directly confirmed Information provided by the waste disposal contractor Organizational defaults of the waste disposal contractor	Leidos has national contracts with professional waste management companies for recycling and waste disposal at all owned (not leased) facilities. Circularity measures as and additional details are provided in the Environment > Corporate Footprint and Environmental Stewardship Leidos disposes of hazardous waste using Clean Harbors Environmental Services. In all cases, we are considered a small quantity generator per US EPA (less than 1,000 kilograms of hazardous waste per month). The waste is generally landfilled or incinerated at an EPA-permitted hazardous waste Treatment Storage and Disposal Facility (TSDF), as reported to Leidos by Clean Harbors Environmental Services. Leidos collects waste-related data from our vendors who provide detailed reports that include billing, weight, processing, and method. This information is then uploaded into our sustainability platform.
SASB TC-SI-130a.2	Total water withdrawn Total water consumed, percentage of each in regions with High or Extremely High Baseline Water Stress	Environment > Corporate Footprint and Environmental Stewardship

Disclosure Number

Disclosure Title & Requirements

2020 Response

306-2

Waste by type and disposal method:

Report the total weight of hazardous and non-hazardous waste, by the following disposal methods:

Reuse
Recycling
Composting
Recovery, including energy recovery
Incineration (mass burn)
Deep well injection
Landfill
On-site storage
Other (to be specified by the organization)

Total weight of non-hazardous waste, with a breakdown by the following disposal methods where applicable:

Reuse
Recycling
Composting
Recovery, including energy recovery
Incineration (mass burn)
Deep well injection
Landfill
On-site storage
Other (to be specified by the organization)

How the waste disposal method has been determined:

Disposed of directly by the organization, or otherwise directly confirmed
Information provided by the waste disposal contractor
Organizational defaults of the waste disposal contractor

Leidos has national contracts with professional waste management companies for recycling and waste disposal at all owned (not leased) facilities. Circularity measures as and additional details are provided in the Environment > Corporate Footprint and Environmental Stewardship

Leidos disposes of hazardous waste using Clean Harbors Environmental Services. In all cases, we are considered a small quantity generator per US EPA (less than 1,000 kilograms of hazardous waste per month). The waste is generally landfilled or incinerated at an EPA-permitted hazardous waste Treatment Storage and Disposal Facility (TSDF), as reported to Leidos by Clean Harbors Environmental Services. Leidos collects waste-related data from our vendors who provide detailed reports that include billing, weight, processing, and method. This information is then uploaded into our sustainability platform.

SASB

TC-SI-130a.2

Total water withdrawn
Total water consumed, percentage of each in regions with High or Extremely High Baseline Water Stress

Environment > Corporate Footprint and Environmental Stewardship

Disclosure Number	Disclosure Title & Requirements	2020 Response
308-1	New suppliers that were screened using environmental criteria Percentage of new suppliers that were screened using environmental criteria.	In 2020, we piloted a sustainability questionnaire for 50 of our suppliers to collect information on key issues, including climate change, diversity and inclusion, cybersecurity, and human rights. The purposes of these engagements were (1) to expand the boundary and improve estimates of supply chain emissions, (2) to better understand the climate and sustainability stories of our suppliers, (3) to open a new line of communication with our suppliers and collaborate on climate and sustainability challenges, risks, and opportunities, and (4) to identify priority areas for improving internal management systems and processes that support supply chain sustainability. We limited distribution of the questionnaire to 50 large suppliers selected based on spend or leveraging prior partnerships and engagements. Through data sharing and collaboration, the intended impact of this pilot engagement was to learn how best to collect sustainability data from key suppliers, to identify common data gaps, and to begin to support and encourage our suppliers to (1) set GHG targets and reduce emissions, (2) adopt strong stainability programs, (3) engage on industry initiatives that address sustainability issues, (4) analyze their own supply chains through a sustainability lens. The primary measure of success for this pilot supply chain questionnaire was response rate and, unfortunately, the realized response rate was much lower than pilot goals. We learned from our suppliers that many are suffering from questionnaire fatigue. As a result, Leidos is evaluating alternative data sources and engagement methods to achieve our supply chain sustainability objectives without burdening our suppliers. In addition to the sustainability questionnaire, 205 of our contractors completed the Contractor Safety Questionnaire. Of the 205 companies, 151 were for existing or previously qualified firms and 54 were for new subcontractors. 100% of new suppliers were screened using environmental criteria.
308-2	Negative environmental impacts in the supply chain and actions taken: Number of suppliers assessed for environmental impacts. Number of suppliers identified as having significant actual and potential negative environmental impacts. Significant actual and potential negative environmental impacts identified in the supply chain. Percentage of suppliers identified as having significant actual and potential negative environmental impacts with which improvements were agreed upon as a result of assessment. Percentage of suppliers identified as having significant actual and potential negative environmental impacts with which relationships were terminated as a result of assessment, and why.	205 None None 0% 0%

Disclosure Number

Disclosure Title & Requirements

2020 Response

308-1

New suppliers that were screened using environmental criteria

Percentage of new suppliers that were screened using environmental criteria.

In 2020, we piloted a sustainability questionnaire for 50 of our suppliers to collect information on key issues, including climate change, diversity and inclusion, cybersecurity, and human rights. The purposes of these engagements were (1) to expand the boundary and improve estimates of supply chain emissions, (2) to better understand the climate and sustainability stories of our suppliers, (3) to open a new line of communication with our suppliers and collaborate on climate and sustainability challenges, risks, and opportunities, and (4) to identify priority areas for improving internal management systems and processes that support supply chain sustainability. We limited distribution of the questionnaire to 50 large suppliers selected based on spend or leveraging prior partnerships and engagements. Through data sharing and collaboration, the intended impact of this pilot engagement was to learn how best to collect sustainability data from key suppliers, to identify common data gaps, and to begin to support and encourage our suppliers to (1) set GHG targets and reduce emissions, (2) adopt strong stainability programs, (3) engage on industry initiatives that address sustainability issues, (4) analyze their own supply chains through a sustainability lens. The primary measure of success for this pilot supply chain questionnaire was response rate and, unfortunately, the realized response rate was much lower than pilot goals. We learned from our suppliers that many are suffering from questionnaire fatigue. As a result, Leidos is evaluating alternative data sources and engagement methods to achieve our supply chain sustainability objectives without burdening our suppliers. In addition to the sustainability questionnaire, 205 of our contractors completed the Contractor Safety Questionnaire. Of the 205 companies, 151 were for existing or previously qualified firms and 54 were for new subcontractors.

100% of new suppliers were screened using environmental criteria.

308-2

Negative environmental impacts in the supply chain and actions taken:

Number of suppliers assessed for environmental impacts.
Number of suppliers identified as having significant actual and potential negative environmental impacts.
Significant actual and potential negative environmental impacts identified in the supply chain.
Percentage of suppliers identified as having significant actual and potential negative environmental impacts with which improvements were agreed upon as a result of assessment.
Percentage of suppliers identified as having significant actual and potential negative environmental impacts with which relationships were terminated as a result of assessment, and why.

205
None
None
0%
0%

Social | Labor Practices and Decent Work

Disclosure Number	Disclosure Title & Requirement	2020 Response
403-2	Types of injury and rates of injury, occupational diseases, lost days, and absenteeism, and number of work-related fatalities: Types of injury, injury rate (IR), occupational disease rate (ODR), lost day rate (LDR), absentee rate (AR), and work-related fatalities, for all employees, with a breakdown by: Region; Gender. Types of injury, injury rate (IR), and work-related fatalities, for all workers (excluding employees) whose work, or workplace, is controlled by the organization, with a breakdown by: Region; Gender. The system of rules applied in recording and reporting accident statistics.	Leidos reports for the company's overall injury rate by total workforce only (vs. by gender or region). Environment > Environmental Health and Safety

Disclosure Number

Disclosure Title & Requirement

2020 Response

403-2

Types of injury and rates of injury, occupational diseases, lost days, and absenteeism, and number of work-related fatalities:

Types of injury, injury rate (IR), occupational disease rate (ODR), lost day rate (LDR), absentee rate (AR), and work-related fatalities, for all employees, with a breakdown by:
1. Region;
2. Gender.
Types of injury, injury rate (IR), and work-related fatalities, for all workers (excluding employees) whose work, or workplace, is controlled by the organization, with a breakdown by:
1. Region;
2. Gender.
The system of rules applied in recording and reporting accident statistics.

Leidos reports for the company's overall injury rate by total workforce only (vs. by gender or region).

Environment > Environmental Health and Safety

Disclosure Number	Disclosure Title and Requirements	2020 Response
404	Programs for upgrading employee skills and transition assistance programs: Type and scope of programs implemented and assistance provided to upgrade employee skills. Transition assistance programs provided to facilitate continued employability and the management of career endings resulting from retirement or termination of employment.	People > Professional and Career Development
404-1	Average hours of training per year per employee	On average, Leidos employees received 6.1 hours of training per year.
404-2	Programs for upgrading employee skills and transition assistance programs	People > Professional and Career Development
404-3	Percentage of employees receiving regular performance and career development reviews	95% of Leidos employees received regular performance and career development reviews.

Disclosure Number	Disclosure Title & Requirements	2020 Response
405-1	Diversity of governance bodies and employees: Percentage of individuals within the organization’s governance bodies in each of the following diversity categories: Gender; Age group: under 30 years old, 30-50 years old, over 50 years old; Other indicators of diversity where relevant (such as minority or vulnerable groups). Percentage of employees per employee category in each of the following diversity categories: Gender; Age group: under 30 years old, 30-50 years old, over 50 years old; Other indicators of diversity where relevant (such as minority or vulnerable groups).	People > Employee Demographics and Statistics

Disclosure Number

Disclosure Title & Requirements

2020 Response

405-1

Diversity of governance bodies and employees:

Percentage of individuals within the organization’s governance bodies in each of the following diversity categories:
- Gender;
- Age group: under 30 years old, 30-50 years old, over 50 years old;
- Other indicators of diversity where relevant (such as minority or vulnerable groups).
Percentage of employees per employee category in each of the following diversity categories:
- Gender;
- Age group: under 30 years old, 30-50 years old, over 50 years old;
- Other indicators of diversity where relevant (such as minority or vulnerable groups).

People > Employee Demographics and Statistics

Disclosure Number	Disclosure Title & Requirements	2020 Response
414-1	New suppliers that were screened using social criteria Percentage of new suppliers that were screened using social criteria.	0% In 2020 Leidos established the Supply Chain Risk and Resiliency Program that is designed to build a flexible supply chain that can rapidly adjust to risks and disruptions by bending to stress without breaking. Within this program is Supply Chain Sustainability that includes our focus on factors that are related to environmental, social and governance practices within the entire value chain. To further our action in this area we released our first supplier environmental, social and governance assessment to a group of our key partners. Leidos has a holistic program that combines close relationships with our key partners, small businesses, and a diverse set of industry-leading tools to maintain a focus on proactive protections to minimize disruptions while accelerating recovery and promoting environmental and social action. Through management of a core supply base, tight collaboration with partners across the industry, and sharing information across cross-functional internal teams, the Leidos Supply Chain Risk & Resiliency program combines industry best-practices with real-time data to anticipate disruptions and adjust as the threats evolve. These initiatives complement our goals of delivering exceptional service, value and expertise to internal stakeholders through efficient and compliant processes, as well as helping to establish a high performing, innovative and diverse supply base. Supplier and Small Business Relationships
414-2	Negative social impacts in the supply chain and actions taken: Number of suppliers assessed for social impacts. Number of suppliers identified as having significant actual and potential negative social impacts. Significant actual and potential negative social impacts identified in the supply chain. Percentage of suppliers identified as having significant actual and potential negative social impacts with which improvements were agreed upon as a result of assessment. Percentage of suppliers identified as having significant actual and potential negative social impacts with which relationships were terminated as a result of assessment, and why.	None Supplier and Small Business Relationships Ethics and Compliance

Disclosure Number

Disclosure Title & Requirements

2020 Response

414-1

New suppliers that were screened using social criteria

Percentage of new suppliers that were screened using social criteria.

In 2020 Leidos established the Supply Chain Risk and Resiliency Program that is designed to build a flexible supply chain that can rapidly adjust to risks and disruptions by bending to stress without breaking. Within this program is Supply Chain Sustainability that includes our focus on factors that are related to environmental, social and governance practices within the entire value chain. To further our action in this area we released our first supplier environmental, social and governance assessment to a group of our key partners. Leidos has a holistic program that combines close relationships with our key partners, small businesses, and a diverse set of industry-leading tools to maintain a focus on proactive protections to minimize disruptions while accelerating recovery and promoting environmental and social action. Through management of a core supply base, tight collaboration with partners across the industry, and sharing information across cross-functional internal teams, the Leidos Supply Chain Risk & Resiliency program combines industry best-practices with real-time data to anticipate disruptions and adjust as the threats evolve. These initiatives complement our goals of delivering exceptional service, value and expertise to internal stakeholders through efficient and compliant processes, as well as helping to establish a high performing, innovative and diverse supply base.

Supplier and Small Business Relationships

414-2

Negative social impacts in the supply chain and actions taken:

Number of suppliers assessed for social impacts.
Number of suppliers identified as having significant actual and potential negative social impacts.
Significant actual and potential negative social impacts identified in the supply chain.
Percentage of suppliers identified as having significant actual and potential negative social impacts with which improvements were agreed upon as a result of assessment.
Percentage of suppliers identified as having significant actual and potential negative social impacts with which relationships were terminated as a result of assessment, and why.

None

Supplier and Small Business Relationships

Ethics and Compliance

Social | Society

Disclosure Number	Disclosure Title & Requirements	2020 Response
413-1	Operations with local community engagement, impact assessments, and development programs: Percentage of operations with implemented local community engagement, impact assessments, and/or development programs, including the use of: Social impact assessments, including gender impact assessments, based on participatory processes; Environmental impact assessments and ongoing monitoring; Public disclosure of results of environmental and social impact assessments; Local community development programs based on local communities’ needs; Stakeholder engagement plans based on stakeholder mapping; Broad based local community consultation committees and processes that include vulnerable groups; Works councils, occupational health and safety committees and other worker representation bodies to deal with impacts; Formal local community grievance processes that include vulnerable groups; Works councils, occupational health and safety committees and other worker representation bodies to deal with impacts; Formal local community grievance processes	Leidos does not currently track the percentage of operations metric. Most of our locations, however, engage in outreach within their communities. Included in this report are several examples of our efforts in both specific communities and amongst specific populations, as well as our community engagement priority areas. We believe that these programs and activities are effective, yet continue to look for ways to maximize their positive effects and minimize any negative impacts. Community Community > Corporate Philanthropy

Disclosure Number

Disclosure Title & Requirements

2020 Response

413-1

Operations with local community engagement, impact assessments, and development programs:

Percentage of operations with implemented local community engagement, impact assessments, and/or development programs, including the use of:
- Social impact assessments, including gender impact assessments, based on participatory processes;
- Environmental impact assessments and ongoing monitoring;
- Public disclosure of results of environmental and social impact assessments;
- Local community development programs based on local communities’ needs;
- Stakeholder engagement plans based on stakeholder mapping;
- Broad based local community consultation committees and processes that include vulnerable groups;
- Works councils, occupational health and safety committees and other worker representation bodies to deal with impacts;
- Formal local community grievance processes that include vulnerable groups;
- Works councils, occupational health and safety committees and other worker representation bodies to deal with impacts;
- Formal local community grievance processes

Leidos does not currently track the percentage of operations metric. Most of our locations, however, engage in outreach within their communities. Included in this report are several examples of our efforts in both specific communities and amongst specific populations, as well as our community engagement priority areas. We believe that these programs and activities are effective, yet continue to look for ways to maximize their positive effects and minimize any negative impacts.

Community

Community > Corporate Philanthropy

Disclosure Number	Disclosure Title & Requirements	2020 Response
205-1	Operations assessed for risks related to corruption: Total number and percentage of operations assessed for risks related to corruption. Significant risks related to corruption identified through the risk assessment.	See Ethics and Compliance The Leidos Internal Audit department has a multi-year risk-based Audit Plan. The Audit Plan focuses on Financial, Business Operations, Corporate Functions, Information Technology, and Security controls to support compliance with Leidos policies and procedures. Risks are continuously monitored, and the Audit Plan is adjusted accordingly. The multi-year Audit Plan covers U.S. as well as international operations
205-2	Communication and training about anti-corruption policies and procedures: Total number and percentage of governance body members that the organization’s anti-corruption policies and procedures have been communicated to, broken down by region. Total number and percentage of employees that the organization’s anti-corruption policies and procedures have been communicated to, broken down by employee category and region. Total number and percentage of business partners that the organization’s anti-corruption policies and procedures have been communicated to, broken down by type of business partner and region. Describe if the organization’s anti-corruption policies and procedures have been communicated to any other persons or organizations. Total number and percentage of governance body members that have received training on anti-corruption, broken down by region. Total number and percentage of employees that have received training on anti-corruption, broken down by employee category and region.	Ethics and Compliance 100% of our governance body and employees receive education on, and have completed, Ethics Training which includes anti-corruption policies and procedures training. Without exception, the company acts in accordance with all its ethics policies and procedures wherever Leidos operates. Moreover, Leidos also holds its third-party business partners, suppliers, and vendors to the same standards of ethics and integrity.
205-3	Confirmed incidents of corruption and actions taken: Total number and nature of confirmed incidents of corruption. Total number of confirmed incidents in which employees were dismissed or disciplined for corruption. Total number of confirmed incidents when contracts with business partners were terminated or not renewed due to violations related to corruption. Public legal cases regarding corruption brought against the organization or its employees during the reporting period and the outcomes of such cases.	None

Disclosure Number

Disclosure Title & Requirements

2020 Response

205-1

Operations assessed for risks related to corruption:

Total number and percentage of operations assessed for risks related to corruption.
Significant risks related to corruption identified through the risk assessment.

See Ethics and Compliance

The Leidos Internal Audit department has a multi-year risk-based Audit Plan. The Audit Plan focuses on Financial, Business Operations, Corporate Functions, Information Technology, and Security controls to support compliance with Leidos policies and procedures. Risks are continuously monitored, and the Audit Plan is adjusted accordingly. The multi-year Audit Plan covers U.S. as well as international operations

205-2

Communication and training about anti-corruption policies and procedures:

Total number and percentage of governance body members that the organization’s anti-corruption policies and procedures have been communicated to, broken down by region.
Total number and percentage of employees that the organization’s anti-corruption policies and procedures have been communicated to, broken down by employee category and region.
Total number and percentage of business partners that the organization’s anti-corruption policies and procedures have been communicated to, broken down by type of business partner and region. Describe if the organization’s anti-corruption policies and procedures have been communicated to any other persons or organizations.
Total number and percentage of governance body members that have received training on anti-corruption, broken down by region.
Total number and percentage of employees that have received training on anti-corruption, broken down by employee category and region.

Ethics and Compliance

100% of our governance body and employees receive education on, and have completed, Ethics Training which includes anti-corruption policies and procedures training. Without exception, the company acts in accordance with all its ethics policies and procedures wherever Leidos operates. Moreover, Leidos also holds its third-party business partners, suppliers, and vendors to the same standards of ethics and integrity.

205-3

Confirmed incidents of corruption and actions taken:

Total number and nature of confirmed incidents of corruption.
Total number of confirmed incidents in which employees were dismissed or disciplined for corruption.
Total number of confirmed incidents when contracts with business partners were terminated or not renewed due to violations related to corruption.
Public legal cases regarding corruption brought against the organization or its employees during the reporting period and the outcomes of such cases.

None

Disclosure Number	Disclosure Title & Requirements	2020 Response
415-1	Political contributions: Total monetary value of financial and in-kind political contributions made directly and indirectly by the organization by country and recipient/beneficiary. If applicable, how the monetary value of in-kind contributions was estimated.	For calendar year 2020, the Leidos Political Action Committee (L-PAC) made $339,500 in political contributions. No in-kind contributions were made. No political contributions were made to state and local candidates and committees and all L-PAC contributions were made within the United States.

Disclosure Number

Disclosure Title & Requirements

2020 Response

415-1

Political contributions:

Total monetary value of financial and in-kind political contributions made directly and indirectly by the organization by country and recipient/beneficiary.
If applicable, how the monetary value of in-kind contributions was estimated.

For calendar year 2020, the Leidos Political Action Committee (L-PAC) made $339,500 in political contributions.

No in-kind contributions were made. No political contributions were made to state and local candidates and committees and all L-PAC contributions were made within the United States.

Disclosure Number	Disclosure Title & Requirements	2020 Response
206-1	Legal actions for anti-competitive behavior, anti-trust, and monopoly practices: Number of legal actions pending or completed during the reporting period regarding anti-competitive behavior and violations of anti-trust and monopoly legislation in which the organization has been identified as a participant. Main outcomes of completed legal actions, including any decisions or judgments.	None
TC-SI-520a.1	Total amount of monetary losses as a result of legal proceedings associated with anticompetitive behavior regulations.	$0

Disclosure Number

Disclosure Title & Requirements

2020 Response

206-1

Legal actions for anti-competitive behavior, anti-trust, and monopoly practices:

Number of legal actions pending or completed during the reporting period regarding anti-competitive behavior and violations of anti-trust and monopoly legislation in which the organization has been identified as a participant.
Main outcomes of completed legal actions, including any decisions or judgments.

None

TC-SI-520a.1

Total amount of monetary losses as a result of legal proceedings associated with anticompetitive behavior regulations.

Disclosure Number	Disclosure Title & Requirements	2020 Response
419-1	Non-compliance with laws and regulations in the social and economic area: Significant fines and non-monetary sanctions for non-compliance with laws and/or regulations in the social and economic area in terms of: total monetary value of significant fines; total number of non-monetary sanctions; Cases brought through dispute resolution mechanisms. If the organization has not identified any non-compliance with laws and/or regulations, a brief statement of this fact is sufficient. The context against which significant fines and non-monetary sanctions were incurred.	None Ethics and Compliance

Disclosure Number

Disclosure Title & Requirements

2020 Response

419-1

Non-compliance with laws and regulations in the social and economic area:

Significant fines and non-monetary sanctions for non-compliance with laws and/or regulations in the social and economic area in terms of:
- total monetary value of significant fines;
- total number of non-monetary sanctions;
- Cases brought through dispute resolution mechanisms.
If the organization has not identified any non-compliance with laws and/or regulations, a brief statement of this fact is sufficient.
The context against which significant fines and non-monetary sanctions were incurred.

None

Ethics and Compliance

Disclosure Number	Disclosure Title & Requirements	2020 Response
418-1	Substantiated complaints concerning breaches of customer privacy and losses of customer data: Total number of substantiated complaints received concerning breaches of customer privacy, categorized by: complaints received from outside parties and substantiated by the organization; complaints from regulatory bodies. Total number of identified leaks, thefts, or losses of customer data. If the organization has not identified any substantiated complaints, a brief statement of this fact is sufficient.	None Trust Center > Data Privacy
SASB TC-SI-230a.1	Number of data breaches Percentage involving personally identifiable information (PII) Number of users affected	None (0)
SASB TC-SI-230a.2	Description of approach to identifying and addressing data security risks, including use of third-party cybersecurity standards.	Trust Center > Cyber Security
SASB TC-SI-220a.1	Description of policies and practices relating to behavioral advertising and user privacy	Trust Center > Data Privacy Additional relevant policies and practices are included in the following documents: Leidos Privacy Statement UK/EU Privacy Notice California Privacy Notice Leidos conducts limited behavioral advertising. A description of our policies and practices related to behavioral advertising is described here.
SASB TC-SI-220a.2	Number of users whose information is used for secondary purposes	Leidos does not provide products or services directly to consumers. The use of Personal Information collected via Leidos websites and mobile apps is described in the Leidos Privacy Statement.
SASB TC-SI-220a.3	Total amount of monetary losses as a result of legal proceedings associated with user privacy	None ($0)
SASB TC-SI-220a.4	Number of law enforcement requests for user information Number of users whose information was requested Percentage resulting in disclosure	As a government and commercial contractor, Leidos provides products and services to its customers as a service provider. In the event Leidos receives a request from law enforcement, Leidos responds to such requests in accordance with the terms of its contract with each customer. Leidos does not have users of its products and services aside from its government and business customers.
SASB TC-SI-220a.5	List of countries where core products or services are subject to government-required monitoring, blocking, content filtering, or censoring	As a government and commercial contractor, Leidos provides products and services to its customers subject to the terms of its contract with each customer. Leidos does not provide products or services directly to consumers. Leidos' products and services are subject to customer oversight and contract terms, but are not otherwise subject to government monitoring, blocking, filtering, or censoring.

GRI™ Standards Index

This report has been prepared in accordance with the GRI™Standards: Core option.

Value Reporting Foundation - SASB Standards

General Standard Disclosures

Topic-Specific Disclosures

Economic

Environmental

Social | Labor Practices and Decent Work

Social | Society

GRI^™ Standards Index

This report has been prepared in accordance with the GRI^™Standards: Core option.