Lockheed Martin 10-K 2025-12-31

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UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 10-K

(Mark One)

For the fiscal year ended December 31, 2025

or

For the transition period from ______ to ______

Commission file number 1-11437

LOCKHEED MARTIN CORPORATION

(Exact name of registrant as specified in its charter)

(301) 897-6000

(Registrant’s telephone number, including area code)

Securities registered pursuant to Section 12(b) of the Act:

Securities registered pursuant to Section 12(g) of the Act: None

Indicate by check mark if the registrant is a well-known seasoned issuer, as defined in Rule 405 of the Securities Act. Yes ☒ No ☐

Indicate by check mark if the registrant is not required to file reports pursuant to Section 13 or Section 15(d) of the Act. Yes ☐ No ☒

Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days. Yes ☒ No ☐

Indicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S-T (§232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit such files). Yes ☒ No ☐

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smaller reporting company, or an emerging growth company. See the definitions of “large accelerated filer,” “accelerated filer,” “smaller reporting company,” and “emerging growth company” in Rule 12b-2 of the Exchange Act.

Large accelerated filer ☒ Accelerated filer ☐ Non–accelerated filer ☐ Smaller reporting company ☐ Emerging growth company ☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐

Indicate by check mark whether the registrant has filed a report on and attestation to its management’s assessment of the effectiveness of its internal control over financial reporting under Section 404(b) of the Sarbanes-Oxley Act (15 U.S.C. 7262(b)) by the registered public accounting firm that prepared or issued its audit report. ☒

If securities are registered pursuant to Section 12(b) of the Act, indicate by check mark whether the financial statements of the registrant included in the filing reflect the correction of an error to previously issued financial statements. ☐

Indicate by check mark whether any of those error corrections are restatements that required a recovery analysis of incentive-based compensation received by any of the registrant’s executive officers during the relevant recovery period pursuant to §240.10D-1(b). ☐

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act). Yes ☐ No ☒

The aggregate market value of voting and non-voting common stock held by non-affiliates of the registrant computed by reference to the last sales price of such stock, as of the last business day of the registrant’s most recently completed second fiscal quarter, which was June 27, 2025, was approximately $106.5 billion.

There were 230,080,240 shares of our common stock, $1 par value per share, outstanding as of January 26, 2026.

DOCUMENTS INCORPORATED BY REFERENCE

Portions of Lockheed Martin Corporation’s 2026 Definitive Proxy Statement are incorporated by reference into Part III of this Form 10‑K. The 2026 Definitive Proxy Statement will be filed with the Securities and Exchange Commission within 120 days after the end of the fiscal year to which this report relates.

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Lockheed Martin Corporation

Form 10-K

For the Year Ended December 31, 2025

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PART I

General

We are a global aerospace and defense technology company that builds and sustains the solutions America and its allies need to deter conflict and advance national security and scientific exploration objectives. Our four business areas – Aeronautics, Missiles and Fire Control, Rotary and Mission Systems, and Space – work as one company offering integrated solutions, at scale, across all warfighting domains. Our defense, space, intelligence, homeland security, information technology, and cybersecurity capabilities serve U.S. and international customers in defense, civil and commercial applications. Our principal customers are agencies of the U.S. Government and allies.

Recent regional conflicts have demonstrated the integral role Lockheed Martin products play in protecting people, and we are rapidly transforming our business to meet increased demand. We are expanding production capacity to continue delivering at scale, and we are harnessing leading-edge technologies like artificial intelligence and autonomy, open-architecture systems, and advanced networking to make defense forces more agile, adaptive and unpredictable. Our goal is to deliver overwhelming capability and value – quickly, at the needed quantities and with the greatest effectiveness – to enable overmatch and strengthen deterrence today and into the future.

We achieve this by developing and investing in differentiating technologies, forging strategic partnerships, including with commercial companies, executing on our multi-year business transformation initiative, maintaining fiscal discipline, and continuing to cultivate the greatest aerospace and defense workforce talent and culture in the world. We invest substantially in our people to ensure that our people have the technical skills necessary to succeed, and we expect to continue to invest internally in innovative technologies that address rapidly evolving mission requirements for our customers. We also will continue to evaluate our organizational structure and portfolio and will make strategic changes, acquisitions or divestitures, as appropriate, while deepening our connection to commercial industry through cooperative partnerships, joint ventures and equity investments.

Business Segments

We operate in four business segments: Aeronautics, Missiles and Fire Control (MFC), Rotary and Mission Systems (RMS) and Space. We organize our business segments based on the nature of the products and services offered.

Aeronautics

Aeronautics is engaged in the research, design, development, manufacture, integration, sustainment, support and upgrade of advanced military aircraft, including combat and air mobility aircraft, unmanned air vehicles and related technologies. Aeronautics also has contracts with the U.S. Government for various classified programs. Aeronautics’ major programs include:

• F-35 Lightning II – international multi-role, multi-variant, fifth generation stealth fighter.

• C-130 Hercules – international tactical airlifter.

• F-16 Fighting Falcon – combat-proven, international multi-role fighter.

• F-22 Raptor – air dominance and multi-role fifth generation stealth fighter.

The F-35 program is our largest program, generating 27% of our total consolidated sales, as well as 67% of Aeronautics’ sales in 2025. The F-35 program consists of multiple development, production and sustainment contracts. Development is focused on modernizing F-35’s capability and addressing emerging threats. Sustainment provides logistics and training support for the aircraft delivered to F-35 customers. Aircraft production is expected to continue well into the future given the U.S. Government’s stated objective of procuring 2,456 aircraft for the U.S. Air Force, U.S. Marine Corps, and U.S. Navy. We also have commitments from seven international partner countries and 12 FMS customers, who collectively during the year indicated their intent to purchase 72 additional aircraft beyond their existing programs of record. The F-35 program is significant and complex, and we, our customers, and our and our customers’ suppliers continually review aircraft performance, schedule, cost and requirements. Our current areas of focus include technology modernization, life-cycle cost containment, delivery schedule optimization, and aircraft readiness enhancements. For additional information on the F-35 program, see Item 1A - Risk Factors for a discussion of risks related to the F-35 program.

In addition to the aircraft programs above, Aeronautics is involved in advanced development programs incorporating innovative design and rapid prototype applications. Our Advanced Development Programs (ADP) organization, also known as Skunk Works®, is focused on future systems, including unmanned and manned aerial systems and next generation capabilities

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for air dominance, hypersonics, intelligence, surveillance, reconnaissance, situational awareness and air mobility. We continue to explore technology advancement and insertion into our existing aircraft. We also are involved in numerous network-enabled activities that allow separate systems to work together to increase effectiveness and we continue to invest in new technologies to maintain and enhance competitiveness in military aircraft design, development and production.

Missiles and Fire Control

MFC provides air and missile defense systems; tactical missiles and precision strike weapon systems; logistics; fire control systems; and mission operations support, readiness, engineering support and integration services. MFC also has contracts with the U.S. Government for various classified programs. MFC’s major programs include:

• The Patriot Advanced Capability-3 (PAC-3) and Terminal High Altitude Area Defense (THAAD) air and missile defense programs. PAC-3 is an advanced defensive missile for the U.S. Army and international customers designed to intercept and eliminate incoming airborne threats using kinetic energy. THAAD is a transportable defensive missile system for the U.S. Government and international customers designed to engage targets both within and outside of the Earth’s atmosphere.

• The Multiple Launch Rocket System (MLRS), Precision Strike Missile (PrSM), Joint Air-to-Surface Standoff Missile (JASSM), Long Range Anti-Ship Missile (LRASM), Hellfire and Joint Air-to-Ground Missile (JAGM) tactical and strike missile programs. MLRS is a highly mobile, automatic system that fires surface-to-surface rockets and missiles from the M270 and High Mobility Artillery Rocket System (HIMARS) platforms produced for the U.S. Army and international customers and PrSM is the next generation of precision strike surface-to-surface weapon systems that is compatible with the MLRS family of launchers in support of the U.S. Army. JASSM is an air-to-ground missile launched from fixed-wing aircraft, which is produced for the U.S. Air Force and international customers. LRASM is a precision guided anti-ship missile derived from JASSM and designed to interdict a variety of surface threats at very long range and produced for the U.S. Air Force, U.S. Navy, and international customers. Hellfire and JAGM are air-to-ground missile used on rotary and fixed-wing aircraft, which is produced for the U.S. Army, Navy, Marine Corps and international customers.

• The Javelin program, which is a one-person portable and platform-employable anti-tank and multi-target precision weapon system. Javelin was developed and is currently produced for the U.S. Army and U.S. Marine Corps by a joint venture between Lockheed Martin and RTX Corporation.

• The Apache fire control system, Sniper Advanced Targeting Pod (SNIPER®) and Infrared Search and Track (IRST21®) sensors and global sustainment programs. The Apache fire control system provides weapons-targeting capability for the Apache helicopter for the U.S. Army and international customers. SNIPER is a targeting system for several fixed-wing aircraft and is produced for the U.S. Air Force and international customers. IRST21 provides long-range infrared detection and tracking of airborne threats and is used on several fixed-wing aircraft. IRST21 is produced for the U.S. Air Force, the U.S. Navy, the National Guard and international customers.

• The Special Operations Forces Global Logistics Support Services (SOF GLSS) program, which provides logistics support services to the special operations forces of the U.S. military.

• Hypersonics programs, which include several programs with the U.S. Air Force and U.S. Army to design, develop and build hypersonic strike weapons.

Rotary and Mission Systems

RMS designs, manufactures, services and supports various military and commercial helicopters, sea- and land-based missile defense systems, radar systems, laser systems, sea- and air-based mission and combat systems, command and control mission solutions, cyber solutions, simulation and training solutions, and services and supports surface ships. RMS also has contracts with the U.S. Government for various classified programs. RMS’ major lines of business include:

• Sikorsky helicopter programs such as those related to the Black Hawk, Seahawk® and CH-53K King Stallion heavy lift helicopters, which are in service with U.S. and foreign governments, and the Combat Rescue Helicopter (CRH) utilized by the U.S. Air Force.

• Integrated warfare systems and sensors (IWSS) programs such as Aegis Combat System (Aegis) programs that serve as an air and missile defense system for the U.S. Navy and international customers and are also a sea and land-based element of the U.S. missile defense system, and the Littoral Combat Ship (LCS), Multi-Mission Surface Combatant (MMSC), and River-Class Destroyer (RCD) (formerly known as Canadian Surface Combatant) programs to provide surface combatant ships for the U.S. Navy and international customers that are designed to operate in shallow waters and the open ocean.

• Command, control, communications, computers, cyber, combat systems, intelligence, surveillance, and reconnaissance (C6ISR) programs such as the Command, Control, Battle Management and Communications (C2BMC) program to provide an air operations center for the Ballistic Missile Defense System for the U.S. Government, undersea combat systems programs largely serving the U.S. Navy, and Australia's Joint Air Battle Management System (AIR 6500).

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• Training, logistics and simulation (TLS) programs such as those providing sustainment services and programs that provide simulators and associated training to U.S. military and foreign government customers.

Effective January 2026, the IWSS and C6ISR lines of business within RMS were restructured and renamed Sensors, Effectors & Mission Systems (SEMS) and Mission Integrated Command and Control (MIC2). This includes realignment of various programs, such as Aegis and RCD moving from what was historically IWSS to MIC2, which more closely aligns with C6ISR. SEMS and MIC2 will therefore incorporate an updated mix of existing program portfolios designed to accelerate mission‑focused solutions and enhance our customers’ experience.

Space

Space is engaged in the research and design, development, engineering and production of satellites, space transportation systems, and strategic, advanced strike, and defensive systems. Space provides network-enabled situational awareness and integrates complex space and ground global systems to help our customers gather, analyze and securely distribute critical intelligence data. Space is also responsible for various classified systems and services in support of vital national security systems. Space’s major programs include:

• The Trident II D5 Fleet Ballistic Missile (FBM), a program with the U.S. Navy for the only submarine-launched intercontinental ballistic missile currently in production in the U.S.

• The Next Generation Overhead Persistent Infrared (Next Gen OPIR) system, which provides the U.S. Space Force with enhanced worldwide missile warning capabilities.

• Next Generation Interceptor (NGI), a program with the Missile Defense Agency (MDA) utilizing next generation propulsion and sensors to provide homeland missile defense.

• The Orion Multi-Purpose Crew Vehicle (Orion), NASA’s next generation exploration-class crewed vehicle for human exploration to the Moon and throughout the solar system.

• Global Positioning System (GPS) III, a program to modernize the GPS satellite system for the U.S. Space Force.

• Hypersonics programs, which include several programs with the U.S. Army and U.S. Navy to design, develop and build hypersonic strike weapons.

• The Transport and Tracking Layer programs, multiple tranches of small satellites to support the proliferated space architecture, with constellations of missile warning and communications satellites for the Space Development Agency.

Intellectual Property

We routinely apply for and own a substantial number of U.S. and foreign patents and trademarks related to the products and services we provide. We also develop and own other intellectual property, including copyrights, trade secrets and research, development and engineering know-how, that contributes significantly to our business. In addition, we license intellectual property to and from third parties. The Federal Acquisition Regulation (FAR) and Defense Federal Acquisition Regulation Supplement (DFARS) provide the U.S. Government certain rights in intellectual property, including patents, developed by us and our subcontractors and suppliers in performance of government contracts or with government funding. The U.S. Government may use or authorize others, including competitors, to use such intellectual property. See the discussion of matters related to our intellectual property in Item 1A - Risk Factors. Non-U.S. governments also may have certain rights in patents and other intellectual property developed in performance of our contracts for them. Although our intellectual property rights in the aggregate are important to the operation of our business, we do not believe that any existing patent, license or other intellectual property right is of such importance that its loss or termination would have a material adverse effect on our business taken as a whole.

Research and Development

We conduct research and development (R&D) activities using our own funds (referred to as company-funded or independent R&D (IR&D)) and under contractual arrangements with our customers (referred to as customer-funded R&D) to enhance existing products and services and to develop future technologies. R&D costs include basic research, applied research, concept formulation studies, design, development, and related test activities. See “Note 1 – Organization and Significant Accounting Policies” (under the caption “Research and development and similar costs”) included in our Notes to Consolidated Financial Statements.

Raw Materials, Suppliers and Seasonality

Some of our products require relatively scarce raw materials, such as rare earth minerals. Other important materials and components, on which certain of our products rely, include aluminum, titanium, specialty steel, carbon fiber and advanced microelectronics, such as semiconductors. We rely on other companies to provide materials, components and products and to

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perform a portion of the services that are provided to our customers under the terms of most of our contracts. Although long-term agreements have historically helped enable a continued supply of these materials, supply chain challenges, supplier disputes, regulatory restrictions, and inflationary pressures have resulted in certain parts’ shortages, extended lead times and pricing escalations affecting certain sources of supply. We are working with U.S. Government, customers and suppliers on phase-in of regulatory requirements for transitioning the supply chains for rare earth minerals and magnets to secure and compliant sources. The current availability of sources of supply meeting regulatory requirements and the ability to ensure compliance down to the mining level within the timeframes required by the regulations are challenges we continue to work with our multi-tier supplier base. At the same time, we are focused on minimizing the impact of these supply chain challenges on our programs. However, many of the challenges are industry wide or caused by geopolitical events and general economic conditions that are outside of our control. These supplier disruptions have resulted in delays and increased costs and have adversely affected our program performance and operating results. These dynamics are expected to continue in 2026. For more information on the risks related to our suppliers and raw materials, see Item 1A - Risk Factors.

No material portion of our business is considered to be seasonal. Various factors, however, can affect the distribution of our sales between accounting periods, including the timing of government awards, the availability of government funding, product deliveries and customer acceptance.

Human Capital

Due to the specialized nature of our business, our performance depends on identifying, attracting, developing, motivating and retaining a highly skilled workforce with the requisite skills and, in many cases, security clearances, in multiple areas, including engineering, science, manufacturing, information technology, cybersecurity, business development and strategy and management. Our human capital management strategy, which we refer to as our people strategy, tightly aligns to our business needs and technology strategy. In 2025, it focused on continuing to accelerate the transformation of our workforce management technology through investments in upgraded systems and processes, increasing our ability to meet the quickly changing needs of our business, and maintaining a working environment and culture that is supportive of all employees and reflects our core value of “Respect Others.” We structure our people strategy and its implementation to comply with the laws and regulations to which we are subject as a federal government contractor.

As of December 31, 2025, we had a highly skilled workforce made up of approximately 123,000 employees, including approximately 72,000 engineers, scientists and information technology professionals. As of December 31, 2025, approximately 93% of our workforce was located in the U.S. and approximately 19% of our employees were covered by collective bargaining agreements with various unions. A number of our existing collective bargaining agreements expire in any given year. Historically, we have been successful in renegotiating expiring agreements without any material disruption of operating activities, and management considers employee and union relations to be good. This has continued to be the case in 2025.

We strive to hire, develop and retain the top talent in the industry. During 2025, we hired nearly 10,800 new employees into Lockheed Martin, nearly 1,500 of which were college hires. In addition to the 10,800, we created internship opportunities for an additional 2,000 students. Our early career strategy, to include partnerships with universities and college internship roles, is an integral part of developing the full breadth of our talent pipelines, particularly in technical fields and critical skills areas. We seek to access the broadest possible pool of talent to enable us to meet our hiring needs.

Employee satisfaction is essential to attracting and retaining top talent, and we regularly conduct employee engagement surveys to gauge employee satisfaction and to understand the effectiveness of our people strategy and assess employees’ intent to stay. We attract and reward our employees by providing market competitive compensation and benefits, including incentives and recognition plans that extend to non-represented employees of all levels in our organization and encourage excellence through our pay-for-performance philosophy. We have a distributed workforce model that enables flexible working arrangements for employees and teams who can meet our customer commitments remotely, which has helped recruit and retain talent. In addition, we invest in the development of our employees through training, apprenticeship programs, security clearance sponsorship, leadership development plans and tuition assistance for continuing education or industry certifications. We believe this employee development makes us more competitive and assists with leadership succession planning. In addition to efforts focused on recruitment and retention, we also monitor employee attrition across our employee population and take action based on the insights we gain from that monitoring process.

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Employee Safety and Health

Through our safety and health program we seek to optimize our operations with targeted safety, health and wellness opportunities designed to provide safe work conditions and a healthy work environment, promote workforce resiliency and enhance business value. As part of this program, we track employee health and safety measures, including quarterly and yearly targets related to the number of injury and illness incidents that occur at work, those incidents that result in days lost, and the number of days lost due to workplace injuries and illness.

For information on the risks related to our human capital resources, see Item 1A – Risk Factors.

Competition

We compete with many different companies both within and outside of the defense and aerospace industry. The Boeing Company, General Dynamics, L3Harris Technologies, Northrop Grumman, and RTX Corporation are some of our primary competitors. Key characteristics of our industry include long operating cycles and intense competition, which is evident through the number of competitors bidding on program opportunities and the existence of bid protests (competitor protests of U.S. Government procurement awards).

We often collaborate with our competitors through teaming arrangements in efforts to provide our customers with the best mix of capabilities to address specific requirements. Additionally, a company competing to be a prime contractor may, upon ultimate award of the contract to another competitor, serve as a subcontractor to the ultimate prime contracting company. It is not unusual to compete for a contract award with a peer company and, simultaneously, perform as a supplier to or a customer of that same competitor on other contracts.

Our broad portfolio of products and services competes domestically and internationally against products and services of the companies listed above, numerous smaller competitors and startups, and increasingly, non-traditional and non-U.S. defense contractors. In some areas of our business, customer requirements and acquisition processes are changing to encourage or facilitate expanded competition. Principal factors of competition include: the technical excellence, reliability, safety and cost competitiveness of our products and services to the customer; technical and management capability; the ability to innovate and develop new products and technologies that improve mission performance and adapt to dynamic threats; successful program execution and on-time delivery of complex, integrated systems; the reputation and customer confidence derived from past performance; our demonstrated ability to execute and perform against contract requirements and successfully manage customer relationships; and our global footprint and accessibility to customers.

The competition for international sales for most of our products and services is subject to U.S. Government stipulations (e.g., export restrictions, market access, technology transfer, industrial cooperation and contracting practices). We compete against U.S. and non-U.S. companies (or teams) for contract awards by international governments. International competitions are also subject to different laws or contracting practices of international governments, which affects how we structure our bid for the procurement. In many international procurements, the purchasing government’s relationship with the U.S. and its industrial cooperation programs designed to enhance local industry are important factors in determining the outcome of a competition. It is common for international customers to require contractors to comply with their industrial cooperation regulations, sometimes referred to as offset requirements, and we have entered into foreign offset agreements as part of securing some international business. For more information concerning our international business, see “International Business” in Management’s Discussion and Analysis of Financial Condition and Results of Operations and Item 1A – Risk Factors.

Technological advances in such areas as additive manufacturing, data analytics, digital engineering, artificial intelligence, advanced materials, autonomy and robotics, and new business models such as commercial access to space, are enabling new factors of competition for both traditional and non-traditional competitors. For more information on the risks related to new technologies, see Item 1A - Risk Factors.

Regulatory Matters

Our business is heavily regulated. We contract with numerous U.S. Government agencies and entities, principally all branches of the U.S. military and NASA. We also contract with similar government authorities in other countries, either under the foreign military sales (FMS) program, contracted through the U.S. Government, or as a direct sale with the foreign government authority, which regulates these sales in a manner similar to the U.S. Government.

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Government Contracts

We must comply with, and are affected by, laws and regulations relating to the formation, administration and performance of U.S. Government and other governments’ contracts, including foreign governments. These laws and regulations, among other things:

• require certification and disclosure of all cost or pricing data in connection with certain types of contract negotiations;

• impose specific and unique cost accounting practices that may differ from U.S. generally accepted accounting principles (GAAP);

• impose acquisition regulations, which may change or be replaced over time, that define which costs can be charged to the U.S. Government, how and when costs can be charged, and otherwise govern our right to reimbursement under certain U.S. Government and foreign contracts;

• require specific security controls to protect U.S. Government controlled unclassified information and that our suppliers that have access to this type of information comply with cyber security regulations;

• restrict the use and dissemination of information classified for national security purposes and the export of certain products, services and technical data;

• prohibit the acquisition from or use by contractors of materials, products or services procured from certain countries or entities located outside the United States (e.g., the prohibition on the acquisition of sensitive materials from non-allied foreign nations and prohibition on the acquisition and use of certain telecommunications and video surveillance services or equipment); and

• require the review and approval of contractor business systems, including accounting systems, estimating systems, earned value management systems for managing cost and schedule performance on certain complex programs, purchasing systems, material management and accounting systems for planning, controlling and accounting for the acquisition, use, issuing and disposition of material, and property management systems.

The U.S. Government and in limited cases certain other governments may terminate any of our government contracts and subcontracts either at their convenience or for default based on our performance. If a contract is terminated for convenience, we generally are protected by provisions covering reimbursement for costs incurred on the contract, up to termination, and profit on those costs. If a contract is terminated for default, we generally are entitled to payment for our work that has been accepted by the U.S. Government or other governments; however, the U.S. Government and other governments could make claims to reduce our recovery or recoup its procurement costs and could assess other special penalties. For more information regarding the U.S. Government’s and other governments’ right to terminate our contracts and the risks of doing work internationally, see Item 1A – Risk Factors. For more information regarding government contracting laws and regulations, see Item 1A – Risk Factors as well as “Critical Accounting Policies – Contract Accounting / Sales Recognition” in Management’s Discussion and Analysis of Financial Condition and Results of Operations.

Additionally, our programs for the U.S. Government often operate for periods of time under undefinitized contract actions (UCAs), which means that we begin performing our obligations before the terms, specifications or price are finally agreed to between the parties. Although in most cases we historically have reached mutual agreement to definitize our UCAs, the U.S. Government has the ability to unilaterally definitize contracts and has done so in the past. Absent a successful appeal of such action, the unilateral definitization of the contract obligates us to perform under terms and conditions imposed by the U.S. Government.

Classified Contracts

A portion of our business is classified by the U.S. Government and cannot be specifically described. The operating results of classified contracts are included in our consolidated financial statements. The business risks and capital requirements associated with classified contracts historically have not differed materially from those of our other U.S. Government contracts. However, certain classified fixed-price development and production contracts carry higher performance risk, and we are unable to insure loss to government property because the classified nature of the contracts prevents the disclosure of information necessary for underwriting and claims to commercial insurers. Our internal controls addressing the financial reporting of classified contracts are consistent with our internal controls for our non-classified contracts.

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Commercial Aircraft

Our commercial aircraft products are required to comply with U.S. and international regulations governing production and quality systems, airworthiness and installation approvals, repair procedures and continuing operational safety.

Environmental

Our operations are subject to and affected by various federal, state, local and foreign environmental protection laws and regulations regarding the discharge of materials into the environment or otherwise regulating the protection of the environment. As a result of these environmental protection laws, we are involved in environmental remediation at some of our current and former facilities and at third-party-owned sites where we have been designated a potentially responsible party as a result of our prior activities and those of our predecessor companies. Although the extent of our financial exposure cannot in all cases be reasonably estimated, the costs of environmental compliance have not had, and we do not expect that these costs will have, a material adverse effect on our financial condition or results of operations, primarily because substantially all of our environmental costs are allowable in establishing the price of our products and services under our contracts with the U.S. Government. For information regarding these matters, including current estimates of the amounts that we believe are required for remediation or cleanup to the extent that they are probable and estimable, see “Note 14 – Legal Proceedings, Commitments and Contingencies” included in our Notes to Consolidated Financial Statements. See also the discussion of environmental matters in Item 1A – Risk Factors.

Climate and Sustainability Reporting and Regulation

There is an increasing global regulatory focus on greenhouse gas (GHG) emissions and their potential impacts relating to climate change. Various jurisdictions around the world in which we operate, including the U.S., the European Union, the United Kingdom, Australia and certain U.S. States, have adopted or proposed laws related to climate and sustainability reporting. These and future laws, regulations or policies in response to concerns over GHG emissions such as carbon taxes, mandatory reporting and disclosure obligations, including environmental requirements for certain federal contractors and subcontractors, and changes in procurement policies, including the use of environmental goals in proposal evaluation, could significantly increase our operational and compliance burdens and costs. We monitor developments in climate change-related regulation for their potential effect on us and also have a comprehensive sustainability program that seeks to mitigate our impact on the environment, including targets to reduce our GHG emissions. For more information on the risk of climate-change related regulation, see Item 1A – Risk Factors.

Other Applicable Regulations

Our business and operations are subject to both U.S. and non-U.S. government laws, regulations and procurement policies and practices, including regulations relating to product testing, import-export controls, technology transfer restrictions, foreign investment, tariffs, taxation, repatriation of earnings, sanctions, exchange controls, the Foreign Corrupt Practices Act and other anti-corruption laws and anti-boycott provisions of the U.S. Export Control Reform Act of 2018.

Available Information

We are a Maryland corporation formed in 1995 by combining the businesses of Lockheed Corporation and Martin Marietta Corporation. Our principal executive offices are located at 6801 Rockledge Drive, Bethesda, Maryland 20817. Our telephone number is (301) 897-6000 and our website address is www.lockheedmartin.com.

We make our website content available for information purposes only. It should not be relied upon for investment purposes, nor is it incorporated by reference into this Annual Report on Form 10-K (Form 10-K).

Throughout this Form 10-K, we incorporate by reference information from parts of other documents filed with the U.S. Securities and Exchange Commission (SEC). The SEC allows us to disclose important information by referring to it in this manner.

Our annual reports on Form 10-K, quarterly reports on Form 10-Q, current reports on Form 8-K, proxy statements for our annual stockholders’ meetings and amendments to those reports are available free of charge on our website, www.lockheedmartin.com/investor, as soon as reasonably practical after we electronically file the material with, or furnish it to, the SEC. In addition, copies of our annual report will be made available, free of charge, upon written request. The SEC also maintains a website at www.sec.gov that contains reports, proxy statements and other information regarding SEC registrants, including Lockheed Martin Corporation.

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Forward-Looking Statements

This Form 10-K contains statements that, to the extent they are not recitations of historical fact, constitute forward-looking statements within the meaning of the federal securities laws and are based on our current expectations and assumptions. The words “believe,” “estimate,” “anticipate,” “project,” “intend,” “expect,” “plan,” “outlook,” “scheduled,” “forecast” and similar expressions are intended to identify forward-looking statements. These statements are not guarantees of future performance and are subject to risks and uncertainties.

Statements and assumptions with respect to future sales, income and cash flows, growth, program performance, the outcome of litigation, anticipated pension costs and funding, environmental remediation cost estimates, planned acquisitions or dispositions of assets, future regulatory, economic or geopolitical changes, or the anticipated consequences thereof are examples of forward-looking statements. Numerous factors, including the risk factors described in the following section, could cause our actual results to differ materially from those expressed in our forward-looking statements.

Our actual financial results likely will be different from any projections due to the inherent nature of projections. Given these uncertainties, forward-looking statements should not be relied on in making investment decisions. The forward-looking statements contained in this Form 10-K speak only as of the date of its filing. Except where required by applicable law, we expressly disclaim a duty to provide updates to forward-looking statements after the date of this Form 10-K to reflect subsequent events, changed circumstances, changes in expectations, or the estimates and assumptions associated with them. The forward-looking statements in this Form 10-K are intended to be subject to the safe harbor protections provided by the federal securities laws.

An investment in our common stock or debt securities involves risks and uncertainties. While we seek to identify, manage and mitigate risks to our business, risk and uncertainty cannot be eliminated or necessarily predicted. The outcome of one or more of these risks could have a material effect on our results of operations or financial position. You should carefully consider the following factors, in addition to the other information contained in this Annual Report on Form 10-K, before deciding to trade in our common stock or debt securities.

Risks Related to our Reliance on Government Contracts, our Industry and the Economy

We depend heavily on contracts with the U.S. Government for a substantial portion of our business. Changes in the U.S. Government’s priorities, or delays or reductions in spending could have a material adverse effect on our business.

We derived 72% of our total consolidated sales from the U.S. Government in 2025, including 63% from the Department of War (DoW), also known as the Department of Defense under 10 U.S.C. § 111(a). We expect to continue to derive most of our sales from work performed under U.S. Government contracts. A reduction in overall U.S. defense spending, on an absolute or inflation-adjusted basis, because of shifting priorities, budget compromises or otherwise could adversely affect our business. Budget uncertainty, extended or repeated U.S. Government shutdowns, the use of continuing resolutions, and the federal debt ceiling can adversely affect our industry and both the quantum and timing of funding for our programs. When appropriations are delayed or a government shutdown occurs and continues for an extended period, we may be at risk of reduced orders, program cancellations, nonpayment or payment delays and other disruptions. When the U.S. Government operates under a continuing resolution, new contract and program starts are restricted and funding for our programs may be unavailable, reduced or delayed.

Our contracts with the U.S. Government are conditioned upon the continuing availability of Congressional appropriations. Congress usually appropriates funds on a fiscal year (FY) basis even though contract performance may extend over many years. Consequently, contracts are often partially funded initially, and additional funds are committed only as Congress makes further appropriations over time. To the extent we incur costs in excess of funds obligated on a contract or in advance of a contract award or contract definitization, we are at risk of not being reimbursed for those costs unless and until additional funds are obligated under the contract or the contract is successfully awarded, definitized and funded, which could adversely affect our financial condition and results of operations.

Failure to fund or the termination of significant programs or contracts by the U.S. Government could adversely affect our business and financial performance. DoW’s changes in funding priorities also could reduce opportunities in existing programs and in future programs or initiatives where we intend to compete and where we have made investments. While we generally expect to compete and be well positioned as the incumbent on existing programs, we may not be successful and, even if we are successful, the replacement programs may be funded at lower levels or result in lower margins. In addition, our ability to grow in key areas such as hypersonics programs, classified programs and next-generation franchise programs will be affected by the

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overall budget environment and whether development programs transition to production and the timing of such transition, all of which are dependent on U.S. Government authorization and funding.

The F-35 program comprises a material portion of our revenue and reductions or delays in funding for this program and risks related to performance, schedule, cost and requirements of the program could adversely affect our performance.

The F-35 program, which consists of multiple development, production and sustainment contracts, is our largest program and represented 27% of our total consolidated sales in 2025. A decision by the U.S. Government, international partners, or FMS customer countries to cut spending on this program or reduce or delay planned orders may have an adverse impact on our business and results of operations. Given the size and complexity of the F-35 program, we anticipate that there will be continual reviews related to aircraft performance, program and delivery schedule, cost, and requirements as part of the DoW, Congressional, and international countries’ oversight and budgeting processes. Challenges and risks associated with this program include supplier performance, software development, definitizing and receiving funding for contracts on a timely basis, execution of future flight tests and findings resulting from testing and operating the aircraft, the level of cost associated with life cycle operations, sustainment and potential contractual obligations, inflation-related cost pressures, the ability to improve affordability, and potential competition from next-generation or other platforms. We may face similar risks for other complex and technologically advanced programs.

We also may not be successful in making hardware upgrades and other modernization capabilities in a timely manner, including as a result of dependencies on suppliers, which could increase costs and create schedule delays. Our ability to capture and retain future F-35 growth in development, production and sustainment is dependent on the success of our efforts to achieve F-35 sustainment performance, customer affordability, supply chain improvements, continued reliability improvements and other efficiencies, some of which are outside our control. See also the Risk Factor below captioned “We are heavily dependent on suppliers and if our subcontractors or other suppliers or teaming agreement or joint venture partners fail to perform their obligations, our performance and ability to win future business could be adversely affected” for further discussion.

We are subject to extensive procurement and other laws, regulations, and contract terms, including those that enable the U.S. Government to terminate contracts for convenience. Our business and reputation could be adversely affected if we or those we do business with fail to comply with these laws, regulations, or terms.

We must comply with extensive laws and regulations relating to the award, administration and performance of U.S. Government contracts. Government contract laws and regulations affect how we do business with our customers and impose certain risks and costs on our business. A violation of these laws and regulations by us, our employees, others working on our behalf, a supplier or a joint venture partner could harm our reputation and result in the imposition of fines and penalties, the termination of our contracts, suspension or debarment from bidding on or being awarded contracts, loss of our ability to export products or perform services and civil or criminal investigations or proceedings. From time to time, the U.S. Government has proposed contract terms, imposed internal policies, or taken positions that represent fundamental changes from historical practices or that we believe are inconsistent with the FAR or other laws and regulations and that could adversely affect our business. In addition, costs to comply with new government regulations and changing policies and practices can increase our costs, reduce our margins and adversely affect our competitiveness. Also, a portion of our contracts are classified by the U.S. Government, which imposes security requirements that limit our ability to discuss our performance on these contracts, including any specific risks, disputes and claims.

Executive Orders. The President has is

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None.

Risk Management and Strategy

We believe cybersecurity is critical to advancing our 21st Century Security vision and enabling our digital transformation efforts. As an aerospace and defense company, we face a multitude of cybersecurity threats that range from attacks common to most industries, such as ransomware and denial-of-service, to attacks from more advanced and persistent, highly organized adversaries, including nation state actors, some of which target the defense industrial base and other critical infrastructure sectors. Our customers, suppliers, subcontractors and joint venture partners face similar cybersecurity threats, and a cybersecurity incident impacting us or any of these entities could materially adversely affect our operations, performance and results of operations. These cybersecurity threats and related risks make it imperative that we strive to be a leader in the information security field, and we expend considerable resources on cybersecurity.

Our corporate information security organization has implemented a governance structure and processes to assess, identify, manage and report cybersecurity risks. We also have a corporate-wide counterintelligence and insider threat detection program to proactively identify external and internal threats and mitigate those threats in a timely manner. As a defense contractor, we must comply with extensive regulations, including requirements imposed by the DFARS related to adequately safeguarding controlled unclassified information (CUI) and reporting cybersecurity incidents to the DoW. We have implemented cybersecurity policies and frameworks based on industry and governmental standards to align closely with DoW requirements, instructions and guidance. Moreover, we continue to work with the DoW on assessing cybersecurity risk and on policies and practices aimed at mitigating these risks. For example, we have worked in collaboration with the other members of the defense industrial base to support DoW’s development of the Cybersecurity Maturity Model Certification (CMMC) program, DoW’s program to ensure members of the defense industrial base meet cybersecurity requirements for handling CUI and federal contract information. In November 2025, we submitted our initial CMMC certification as required by the program. In addition to following DoW guidance and implementing pre-existing third party frameworks, we have developed our own practices and frameworks, which we believe enhance our ability to identify and manage cybersecurity risks. For example, we use a proactive risk management strategy that we developed and implemented called the Intelligence Driven Defense® model that seeks to identify and prevent cybersecurity incidents by understanding the nature of adversaries and using this information to minimize the impact of an attack.

The effectiveness of our security controls are validated by external third parties, including an independent audit agency to maintain our ISO 27001 certification. Whether through independent audits or consulting on best practices, we continuously evaluate both the design and operational effectiveness of security controls. We also share and receive threat intelligence with our defense industrial base peers, government agencies, information sharing and analysis centers and cybersecurity associations.

We rely heavily on our supply chain to deliver our products and services to our customers, and a cybersecurity incident at a supplier, subcontractor, joint venture partner, or service provider could materially adversely impact us. We assess third party cybersecurity controls through a cybersecurity questionnaire and include security and privacy addendums to our contracts where applicable. We also contractually flow cybersecurity regulatory requirements to our subcontractors as required by the DFARS and other government agency specific requirements. These contractual flow downs include the requirement that our subcontractors implement certain security controls, and that our subcontractors self-report the status of their implementation of these controls to the U.S. Government. These government contracting regulations may create challenges for our supply chain and increase costs. We also require that our subcontractors report cybersecurity incidents to us so that we can assess the impact of the incident on us. For select suppliers, we engage third-party cybersecurity monitoring and alerting services, and seek to work directly with those suppliers to address potential deficiencies identified. We also make available cybersecurity education and awareness materials and briefings to our suppliers.

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Governance

The Board of Directors oversees management’s processes for identifying and mitigating risks, including cybersecurity risks, to help align our risk exposure with our strategic objectives. Senior leadership, including our Chief Information Security Officer (CISO), report to the Board of Directors on our cybersecurity and information security posture at least annually and the Board of Directors is apprised of cybersecurity incidents deemed to have a moderate or higher business impact, even if immaterial to us. The Classified Business and Security Committee of the Board of Directors is briefed by senior leadership, as appropriate, on the cybersecurity of classified programs and the security of our classified business supply chain. Other than oversight of classified business cybersecurity, the full Board retains oversight of cybersecurity because of its importance to Lockheed Martin and the heightened risk in the aerospace and defense industry. In the event of an incident, we intend to follow our detailed incident response playbook, which outlines the steps to be followed from incident detection to mitigation, recovery and notification, including notifying functional areas (e.g., legal), as well as senior leadership, the Board, and regulators, as appropriate.

Our corporate information security organization, led by our CISO, is responsible for our overall information security strategy, policy, security engineering, operations and cyber threat detection and response. The current CISO has extensive information technology and program management experience, and has served many years in our corporate information security organization. The corporate information security organization manages and continually enhances a robust enterprise security structure with the ultimate goal of preventing cybersecurity incidents to the extent feasible, while simultaneously increasing our system resilience in an effort to minimize the business impact should an incident occur. Central to this organization is our computer incident response team (CIRT), which is responsible for the protection, detection and response capabilities used in the defense of Lockheed Martin’s data and enterprise computing networks. Employees outside of our corporate information security organization also have a role in our cybersecurity defenses and they are immersed in a corporate culture supportive of security, which we believe improves our cybersecurity.

Assessing, identifying and managing cybersecurity related risks are integrated into our overall enterprise risk management (ERM) process. Cybersecurity related risks are included in the risk universe that the ERM function evaluates to assess top risks to the enterprise on an annual basis. To the extent the ERM process identifies a heightened cybersecurity related risk, risk owners are assigned to develop risk mitigation plans, which are then tracked to completion. The ERM process’s annual risk assessment and relevant mitigations are presented to the Board of Directors.

Notwithstanding the extensive approach we take to cybersecurity, we may not be successful in preventing or mitigating a cybersecurity incident that could have a material adverse effect on us. While Lockheed Martin maintains cybersecurity insurance, the costs related to cybersecurity threats or disruptions may not be fully insured. See Item 1A. “Risk Factors” for a discussion of cybersecurity risks.

At December 31, 2025, we owned or leased building space (including offices, manufacturing plants, warehouses, service centers, laboratories and other facilities) at 333 locations primarily in the U.S. Additionally, we manage or occupy 9 government-owned facilities under lease and other arrangements. At December 31, 2025, we had significant operations in the following locations:

• Aeronautics** - Palmdale, California; Marietta, Georgia; Greenville, South Carolina; and Fort Worth, Texas.

• Missiles and Fire Control** - Troy, Alabama; Camden, Arkansas; Ocala and Orlando, Florida; Lexington, Kentucky; and Grand Prairie, Texas

• Rotary and Mission Systems** - Stratford, Connecticut; Orlando, Florida; Moorestown/Mt. Laurel, New Jersey; Owego and Syracuse, New York; Manassas, Virginia; and Mielec, Poland.

• Space** - Huntsville, Alabama; Sunnyvale, California; Denver, Colorado; Cape Canaveral, Florida; and Valley Forge, Pennsylvania.

• Corporate activities - Bethesda, Maryland.

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The following is a summary of our square feet of floor space owned, leased, or utilized by business segment at December 31, 2025 (in millions):

We believe our facilities are in good condition and adequate for their current use. We may add, improve, replace, or reduce facilities as considered appropriate to meet the needs of our operations.

We are a party to litigation and other proceedings that arise in the ordinary course of our business, including matters arising under provisions relating to the protection of the environment, and are subject to contingencies related to certain businesses we previously owned. These types of matters could result in fines, penalties, cost reimbursements or contributions, compensatory or treble damages or non-monetary sanctions or relief. We believe the probability is remote that the outcome of each of these matters will have a material adverse effect on the corporation as a whole, notwithstanding that the unfavorable resolution of any matter may have a material effect on our net earnings and cash flows in any particular interim reporting period. We cannot predict the outcome of legal or other proceedings with certainty.

We are subject to federal, state, local and foreign requirements for the protection of the environment, including those for discharge of hazardous materials and remediation of contaminated sites. Due in part to the complexity and pervasiveness of these requirements, we are a party to or have property subject to various lawsuits, proceedings and remediation obligations. The extent of our financial exposure cannot in all cases be reasonably estimated at this time.

For information regarding the matters discussed above, including current estimates of the amounts that we believe are required for remediation or clean-up to the extent estimable, see “Note 14 – Legal Proceedings, Commitments and Contingencies” included in our Notes to Consolidated Financial Statements, which are incorporated herein by reference.

Not applicable.

Information about our Executive Officers

Our executive officers as of January 29, 2026 are listed below, with their ages on that date, positions and offices currently held, and principal occupation and business experience during at least the last five years. There are no family relationships among any of our executive officers and directors. All executive officers serve at the discretion of the Board of Directors.

Timothy S. Cahill (age 60), President – Missiles and Fire Control

Mr. Cahill has served as President for the Missiles and Fire Control (MFC) business segment since November 2022. Mr. Cahill previously served as Senior Vice President Global Business Development & Strategy (GBD&S) from March 2021 to October 2022. Prior to that, Mr. Cahill served as Senior Vice President Lockheed Martin International from October 2019 to March 2021.

Stephanie C. Hill (age 61), President – Rotary and Mission Systems

Ms. Hill has served as President for the Rotary and Mission Systems (RMS) business segment since June 2020. She previously served as Senior Vice President, Enterprise Business Transformation from June 2019 to June 2020.

Robert M. Lightfoot, Jr. (age 62), President – Space

Mr. Lightfoot has served as President for the Space business segment since January 2022. He previously served as Vice President, Operations for the Space business segment from June 2021 to December 2021. Prior to that, he served as Vice President, Strategy and Business Development for Space from May 2019 to June 2021.

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Kevin J. O’Connor (age 58), Senior Vice President, General Counsel and Corporate Secretary

Mr. O’Connor has served as Senior Vice President, General Counsel and Corporate Secretary since January 2025. Prior to joining Lockheed Martin Corporation he served as the Senior Vice President and Chief Legal Officer of Carrier Corporation from January 2020 until January 2025.

H. Edward Paul, III (age 50), Vice President and Controller

Mr. Paul has served as Vice President and Controller since June 2022. Previously, he served as Vice President, Accounting from March 2015 to June 2022.

Maria A. Ricciardone (age 50), Vice President, Treasurer and Investor Relations

Ms. Ricciardone has served as Vice President, Treasurer and Investor Relations since January 2024. She previously served as Vice President, Investor Relations from October 2022 to December 2023. Prior to joining Lockheed Martin Corporation in October 2022, she served as Vice President, Finance – FP&A and Global Components of Arrow Electronics from June 2019 to October 2022. Prior to that, she served as Treasurer and Vice President, Strategy and Investor Relations for Hubbell Incorporated from January 2016 to June 2019.

Evan T. Scott (age 48), Chief Financial Officer

Mr. Scott has served as Chief Financial Officer since April 2025. He previously served as Vice President and Chief Financial Officer of the Missiles and Fire Control (MFC) business segment from January 2024 to April 2025. Prior to that, Mr. Scott was Vice President and Treasurer from June 2022 through December 2023, and Vice President, Finance and Business Operations of the Space business segment from March 2019 to August 2021.

Frank A. St. John (age 59), Chief Operating Officer

Mr. St. John has served as Chief Operating Officer since June 2020. He previously served as Executive Vice President for RMS from August 2019 to June 2020.

James D. Taiclet (age 65), Chairman, President and Chief Executive Officer

Mr. Taiclet has served as Chairman since March 2021 and as President and Chief Executive Officer (CEO) of Lockheed Martin Corporation since June 2020. He has served on the Lockheed Martin Corporation Board of Directors since January 2018.

Gregory M. Ulmer (age 61), President – Aeronautics

Mr. Ulmer has served as President for the Aeronautics business segment since February 2021. He previously served as Vice President and General Manager, F-35 Lightning II Program from March 2018 to January 2021.

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PART II

At January 26, 2026, we had 20,822 holders of record of our common stock, par value $1 per share. Our common stock is traded on the New York Stock Exchange (NYSE) under the symbol LMT.

Stockholder Return Performance Graph

The following graph compares the total return on a cumulative basis through December 31, 2025, assuming reinvestment of dividends, of $100 invested in Lockheed Martin common stock as of market close on December 31, 2020 to the Standard and Poor’s (S&P) 500 Index and the S&P Aerospace & Defense Index.

The S&P Aerospace & Defense Index comprises Axon Enterprise, Inc., General Dynamics Corporation, General Electric Company, Howmet Aerospace Inc., Huntington Ingalls Industries, L3Harris Technologies, Inc., Lockheed Martin Corporation, Northrop Grumman Corporation, RTX Corporation, Textron Inc., The Boeing Company and Transdigm Group Inc. The stockholder return performance indicated on the graph is not a guarantee of future performance.

This graph is not deemed to be “filed” with the U.S. Securities and Exchange Commission or subject to the liabilities of Section 18 of the Securities Exchange Act of 1934 (the Exchange Act), and should not be deemed to be incorporated by reference into any of our prior or subsequent filings under the Securities Act of 1933 or the Exchange Act.

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Purchases of Equity Securities

There were no sales of unregistered equity securities during the quarter ended December 31, 2025.

The following table provides information about our repurchases of our common stock that is registered pursuant to Section 12 of the Securities Exchange Act of 1934 during the quarter ended December 31, 2025.

(a)We close our books and records on the last Sunday of each month to align our financial closing with our business processes, except for the month of December, as our fiscal year ends on December 31. As a result, our fiscal months often differ from the calendar months. For example, September 29, 2025 was the first day of our October 2025 fiscal month.

(b)In 2010, our Board of Directors approved a share repurchase program pursuant to which we are authorized to repurchase our common stock in privately negotiated transactions or in the open market at prices per share not exceeding the then-current market prices. From time to time, our Board of Directors authorizes increases to our share repurchase program. In October 2025, the Board of Directors authorized an increase to the program by $2.0 billion. The total remaining authorization for future common share repurchases under our share repurchase program was $8.3 billion as of December 31, 2025. Under the program, management has discretion to determine the dollar amount of shares to be repurchased and the timing of any repurchases in compliance with applicable law and regulation. This includes purchases pursuant to Rule 10b5-1 plans, including accelerated share repurchases. The program does not have an expiration date, and may be amended or terminated by the Board of Directors at any time.

(c)During the fourth quarter of 2025, the total number of shares purchased included 10,294 shares that were transferred to us by employees in satisfaction of tax withholding obligations associated with the vesting of restricted stock units. These purchases were made pursuant to a separate authorization by our Board of Directors and are not included within the share repurchase program described above.

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The following Management’s Discussion and Analysis of Financial Condition and Results of Operations (MD&A) is intended to help the reader understand our results of operations and financial condition. The MD&A is provided as a supplement to, and should be read in conjunction with, our consolidated financial statements and notes thereto included in Item 8 - Financial Statements and Supplementary Data.

The MD&A generally discusses 2025 and 2024 items and year-to-year comparisons between 2025 and 2024. Discussions of 2023 items and year-to-year comparisons between 2024 and 2023 that are not included in this Form 10-K can be found in “Management’s Discussion and Analysis of Financial Condition and Results or Operations” in the Company’s Annual Report on Form 10-K for the fiscal year ended December 31, 2024 filed with the SEC on January 28, 2025.

Business Overview

We are a global aerospace and defense technology company that builds and sustains the solutions America and its allies need to deter conflict and advance national security and scientific exploration objectives. Our four business areas – Aeronautics, Missiles and Fire Control, Rotary and Mission Systems, and Space – work as one company offering integrated solutions, at scale, across all warfighting domains. Our defense, space, intelligence, homeland security, information technology, and cybersecurity capabilities serve U.S. and international customers in defense, civil and commercial applications. Our principal customers are agencies of the U.S. Government and allies. In 2025, 72% of our $75.0 billion in sales were from the U.S. Government, either as a prime contractor or as a subcontractor (including 63% from the Department of War (DoW), also known as the Department of Defense under 10 U.S.C. § 111(a)) and 28% were from international customers (including foreign military sales (FMS) contracted through the U.S. Government).

We operate in four business segments: Aeronautics, Missiles and Fire Control (MFC), Rotary and Mission Systems (RMS) and Space. We organize our business segments based on the nature of the products and services offered.

Recent regional conflicts have demonstrated the integral role Lockheed Martin products play in protecting people, and we are rapidly transforming our business to meet increased demand. We are expanding production capacity to continue delivering at scale, and we are harnessing leading-edge technologies like artificial intelligence and autonomy, open-architecture systems, and advanced networking to make defense forces more agile, adaptive and unpredictable. Our goal is to deliver overwhelming capability and value – quickly, at the needed quantities and with the greatest effectiveness – to enable overmatch and strengthen deterrence today and into the future.

We achieve this by developing and investing in differentiating technologies, forging strategic partnerships, including with commercial companies, executing on our multi-year business transformation initiative, maintaining fiscal discipline, and continuing to cultivate the greatest aerospace and defense workforce talent and culture in the world. We invest substantially in our people to ensure that our people have the technical skills necessary to succeed, and we expect to continue to invest internally in innovative technologies that address rapidly evolving mission requirements for our customers. We also will continue to evaluate our organizational structure and portfolio and will make strategic changes, acquisitions or divestitures, as appropriate, while deepening our connection to commercial industry through cooperative partnerships, joint ventures and equity investments.

Portfolio Shaping Activities

We continuously strive to strengthen our portfolio of products and services to meet the current and future needs of our customers. We accomplish this in part by our independent research and development activities and through acquisition, divestiture and internal realignment activities.

We selectively pursue the acquisition of businesses, investments and ventures at attractive valuations that will expand or complement our current portfolio and allow access to new customers or technologies. We also may explore the divestiture of businesses, investments or ventures that no longer meet our needs or strategy or that could perform better outside of our organization or with a different owner. In pursuing our business strategy, we routinely conduct discussions, evaluate targets and enter into agreements regarding possible acquisitions, divestitures, joint ventures and equity investments.

As previously disclosed, during the second quarter of 2025, we paid $360 million, in cash, for the acquisition of Amentum’s Rapid Solutions business (Rapid Solutions). This acquisition integrates Rapid Solutions’ advanced space and airborne mission capabilities, including intelligence, surveillance and reconnaissance technologies, into Lockheed Martin’s portfolio. Rapid Solutions operates within our Space business segment and the financial results have been included within our

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operating results in the period post-acquisition. See “Note 1 – Organization and Significant Accounting Policies” included in our Notes to Consolidated Financial Statements for further information regarding the acquisition of Rapid Solutions.

Global Security

We operate in a complex and evolving global security environment. Conflicts or tensions in areas such as Europe, the Middle East, and the Pacific region have heightened tensions and highlighted security requirements globally, including in these regions as well as the U.S. Although these tensions and conflicts may drive interest in specific products or services as countries seek to improve their security posture, our business primarily operates on a long-cycle basis. As a result, the U.S. Government has been broadly focused on increasing industry capacity to meet long-term demand. We continue to work with the U.S. Government, international partners, and our supply chain to increase capacity and enhance our ability to scale our operations to anticipate potential demand, deliver critical capabilities, and replenish depleted U.S. and allied stockpiles of products that have been consumed over the past several years.

Global Economic and Geopolitical Environment

Our business and financial performance are impacted by general economic conditions including inflationary pressures, delays and disruptions in supply chains, business slowdowns or shutdowns, workforce challenges and labor shortfalls, impacts from technological change, and market volatility. These macroeconomic factors have contributed, and may continue to contribute, to increased costs, delays, disruptions and other performance challenges, as well as competing demands for limited resources to address such increased costs and other challenges, for our company, our suppliers and partners, and our customers.

We have experienced, and continue to experience, supply chain challenges, including supplier shortages and performance issues. While on-time deliveries are improving, pressures remain in certain areas, and we are proactively working with our suppliers to meet our contract commitments. In addition, macroeconomic conditions including elevated levels of inflation present risks for us, our suppliers and the stability of the broader defense industrial base. Supply chain challenges, including both the availability and cost of goods, may be further impacted due to the imposition of tariffs and the availability of raw materials including rare earth minerals, as discussed below under “Recent Developments in Trade and Regulatory Policies.” If we experience significant supply chain issues or high rates of inflation, and are unable to successfully mitigate the impact, our future profits, margins and cash flows, particularly for existing fixe

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We maintain active relationships with a broad and diverse group of U.S. and international financial institutions. We believe that they provide us with sufficient access to the general and trade credit we require to conduct our business. We closely monitor the financial market environment and actively manage counterparty exposure to minimize the potential impact from adverse developments with any single credit provider while ensuring availability of, and access to, sufficient credit resources.

Our main exposures to market risk relate to interest rates, foreign currency exchange rates and market prices on certain equity securities. Our financial instruments that are subject to interest rate risk principally include fixed-rate long-term debt and commercial paper, if issued. The estimated fair value of our outstanding debt was $22.0 billion at December 31, 2025 and the outstanding principal amount of debt, including short-term and long-term debt, was $22.9 billion, excluding unamortized discounts and issuance costs of $1.2 billion. A 10% change in the level of interest rates would not have a material impact on the fair value of our outstanding debt at December 31, 2025.

We use derivative instruments principally to reduce our exposure to market risks from changes in foreign currency exchange rates and interest rates. We transact business globally and are subject to risks associated with changing foreign currency exchange rates. We do not enter into or hold derivative instruments for speculative trading purposes. These contracts hedge forecasted foreign currency transactions in order to minimize fluctuations in our earnings and cash flows associated with changes in foreign currency exchange rates. We designate foreign currency hedges as cash flow hedges. We enter into foreign currency hedges such as forward and option contracts that change in value as foreign currency exchange rates change. Our most significant foreign currency exposures relate to the British pound sterling, the euro, the Canadian dollar, the Australian dollar, the Norwegian kroner and the Polish zloty. We also are exposed to the impact of interest rate changes primarily through our borrowing activities. For fixed rate borrowings, we may use variable interest rate swaps, effectively converting fixed rate borrowings to variable rate borrowings in order to hedge changes in the fair value of the debt. These swaps are designated as fair value hedges. For variable rate borrowings, we may use fixed interest rate swaps, effectively converting variable rate borrowings to fixed rate borrowings in order to minimize the impact of interest rate changes on earnings. These swaps are designated as cash flow hedges. We also may enter into derivative instruments that are not designated as hedges and do not qualify for hedge accounting, which are intended to minimize certain economic exposures.

The classification of gains and losses resulting from changes in the fair values of derivatives is dependent on our intended use of the derivative and its resulting designation. Adjustments to reflect changes in fair values of derivatives attributable to highly effective hedges are either reflected in earnings and largely offset by corresponding adjustments to the hedged items or reflected net of income taxes in accumulated other comprehensive loss until the hedged transaction is recognized in earnings. Changes in the fair value of the derivatives that are not highly effective, if any, are immediately recognized in earnings. The aggregate notional amount of our outstanding interest rate swaps was $1.3 billion at both December 31, 2025 and 2024. The aggregate notional amount of our outstanding foreign currency hedges at December 31, 2025 and 2024 was $7.2 billion and $7.5 billion. At December 31, 2025 and 2024, the net fair value of our derivative instruments was not material (see “Note 15 – Fair Value Measurements” included in our Notes to Consolidated Financial Statements). A 10% unfavorable exchange rate movement of our foreign currency contracts would not have a material impact on the aggregate net fair value of such contracts or our consolidated financial statements. Additionally, as we enter into foreign currency contracts to hedge foreign currency exposure on underlying transactions, we believe that any movement on our foreign currency contracts would be offset by movement on the underlying transactions and, therefore, when taken together do not create material risk.

We evaluate the credit quality of potential counterparties to derivative transactions and only enter into agreements with those deemed to have acceptable credit risk at the time the agreements are executed. Our foreign currency exchange hedge portfolio is diversified across many banks. We regularly monitor changes to counterparty credit quality as well as our concentration of credit exposure to individual counterparties.

We maintain a separate trust that includes investments to fund certain of our non-qualified deferred compensation plans. As of December 31, 2025, investments in the trust totaled $2.0 billion and are reflected at fair value on our consolidated balance sheet in other noncurrent assets. The trust holds investments in marketable equity securities and fixed-income securities that are exposed to price changes and changes in interest rates. A portion of the liabilities associated with the deferred compensation plans supported by the trust is also impacted by changes in the market price of our common stock and certain market indices. Changes in the value of the liabilities have the effect of partially offsetting the impact of changes in the value of the trust. Both the change in the fair value of the trust and the change in the value of the liabilities are recognized on our consolidated statements of earnings in other unallocated, net and were not material for the year ended December 31, 2025.

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Report of Independent Registered Public Accounting Firm

Board of Directors and Stockholders

Lockheed Martin Corporation

Opinion on the Financial Statements

We have audited the accompanying consolidated balance sheets of Lockheed Martin Corporation (the Corporation) as of December 31, 2025 and 2024, the related consolidated statements of earnings, comprehensive income, cash flows and equity for each of the three years in the period ended December 31, 2025, and the related notes (collectively referred to as the “consolidated financial statements”). In our opinion, the consolidated financial statements present fairly, in all material respects, the financial position of the Corporation at December 31, 2025 and 2024, and the results of its operations and its cash flows for each of the three years in the period ended December 31, 2025, in conformity with U.S. generally accepted accounting principles.

We also have audited, in accordance with the standards of the Public Company Accounting Oversight Board (United States) (PCAOB), the Corporation’s internal control over financial reporting as of December 31, 2025, based on criteria established in Internal Control - Integrated Framework issued by the Committee of Sponsoring Organizations of the Treadway Commission (2013 framework) and our report dated January 29, 2026 expressed an unqualified opinion thereon.

Basis for Opinion

These financial statements are the responsibility of the Corporation’s management. Our responsibility is to express an opinion on the Corporation’s financial statements based on our audits. We are a public accounting firm registered with the PCAOB and are required to be independent with respect to the Corporation in accordance with the U.S. federal securities laws and the applicable rules and regulations of the Securities and Exchange Commission and the PCAOB.

We conducted our audits in accordance with the standards of the PCAOB. Those standards require that we plan and perform the audit to obtain reasonable assurance about whether the financial statements are free of material misstatement, whether due to error or fraud. Our audits included performing procedures to assess the risks of material misstatement of the financial statements, whether due to error or fraud, and performing procedures that respond to those risks. Such procedures included examining, on a test basis, evidence regarding the amounts and disclosures in the financial statements. Our audits also included evaluating the accounting principles used and significant estimates made by management, as well as evaluating the overall presentation of the financial statements. We believe that our audits provide a reasonable basis for our opinion.

Critical Audit Matter

The critical audit matter communicated below is a matter arising from the current period audit of the financial statements that was communicated or required to be communicated to the audit committee and that: (1) relates to accounts or disclosures that are material to the financial statements and (2) involved our especially challenging, subjective or complex judgments. The communication of the critical audit matter does not alter in any way our opinion on the consolidated financial statements, taken as a whole, and we are not, by communicating the critical audit matter below, providing a separate opinion on the critical audit matter or on the account or disclosure to which it relates.

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/s/ Ernst & Young LLP

We have served as the Corporation’s auditor since 1994.

Tysons, Virginia

January 29, 2026

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Lockheed Martin Corporation

Consolidated Statements of Earnings

(in millions, except per share data)

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None.

Evaluation of Disclosure Controls and Procedures

We performed an evaluation of the effectiveness of our disclosure controls and procedures as of December 31, 2025. The evaluation was performed with the participation of senior management of each business segment and key corporate functions, under the supervision of the Chief Executive Officer (CEO) and Chief Financial Officer (CFO). Based on this evaluation, the CEO and CFO concluded that our disclosure controls and procedures were effective as of December 31, 2025.

Management’s Report on Internal Control Over Financial Reporting

Our management is responsible for establishing and maintaining adequate internal control over financial reporting. Our internal control system is designed to provide reasonable assurance to our management and Board of Directors regarding the reliability of financial reporting and the preparation of consolidated financial statements for external purposes.

Our management conducted an assessment of the effectiveness of our internal control over financial reporting as of December 31, 2025. This assessment was based on the criteria set forth by the Committee of Sponsoring Organizations of the Treadway Commission in Internal Control-Integrated Framework (2013 framework). Based on this assessment, management concluded that our internal control over financial reporting was effective as of December 31, 2025.

Our independent registered public accounting firm has issued a report on the effectiveness of our internal control over financial reporting, which is below.

Changes in Internal Control Over Financial Reporting

There were no changes in our internal control over financial reporting identified in connection with the evaluation required by Rules 13a-15(d) and 15d‑15(d) of the Exchange Act that occurred during the quarter ended December 31, 2025 that materially affected, or are reasonably likely to materially affect, our internal control over financial reporting.

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Report of Independent Registered Public Accounting Firm

Board of Directors and Stockholders

Lockheed Martin Corporation

Opinion on Internal Control over Financial Reporting

We have audited Lockheed Martin Corporation’s internal control over financial reporting as of December 31, 2025, based on criteria established in Internal Control-Integrated Framework issued by the Committee of Sponsoring Organizations of the Treadway Commission (2013 framework) (the COSO criteria). In our opinion, Lockheed Martin Corporation (the Corporation) maintained, in all material respects, effective internal control over financial reporting as of December 31, 2025, based on the COSO criteria.

We also have audited, in accordance with the standards of the Public Company Accounting Oversight Board (United States) (PCAOB), the consolidated balance sheets of the Corporation as of December 31, 2025 and 2024, the related consolidated statements of earnings, comprehensive income, equity and cash flows for each of the three years in the period ended December 31, 2025, and the related notes and our report dated January 29, 2026 expressed an unqualified opinion thereon.

Basis for Opinion

The Corporation’s management is responsible for maintaining effective internal control over financial reporting and for its assessment of the effectiveness of internal control over financial reporting included in the accompanying Management’s Report on Internal Control Over Financial Reporting. Our responsibility is to express an opinion on the Corporation’s internal control over financial reporting based on our audit. We are a public accounting firm registered with the PCAOB and are required to be independent with respect to the Corporation in accordance with the U.S. federal securities laws and the applicable rules and regulations of the Securities and Exchange Commission and the PCAOB.

We conducted our audit in accordance with the standards of the PCAOB. Those standards require that we plan and perform the audit to obtain reasonable assurance about whether effective internal control over financial reporting was maintained in all material respects.

Our audit included obtaining an understanding of internal control over financial reporting, assessing the risk that a material weakness exists, testing and evaluating the design and operating effectiveness of internal control based on the assessed risk, and performing such other procedures as we considered necessary in the circumstances. We believe that our audit provides a reasonable basis for our opinion.

Definition and Limitations of Internal Control Over Financial Reporting

A company’s internal control over financial reporting is a process designed to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles. A company’s internal control over financial reporting includes those policies and procedures that (1) pertain to the maintenance of records that, in reasonable detail, accurately and fairly reflect the transactions and dispositions of the assets of the company; (2) provide reasonable assurance that transactions are recorded as necessary to permit preparation of financial statements in accordance with generally accepted accounting principles, and that receipts and expenditures of the company are being made only in accordance with authorizations of management and directors of the company; and (3) provide reasonable assurance regarding prevention or timely detection of unauthorized acquisition, use, or disposition of the company’s assets that could have a material effect on the financial statements.

Because of its inherent limitations, internal control over financial reporting may not prevent or detect misstatements. Also, projections of any evaluation of effectiveness to future periods are subject to the risk that controls may become inadequate because of changes in conditions, or that the degree of compliance with the policies or procedures may deteriorate.

/s/ Ernst & Young LLP

Tysons, Virginia

January 29, 2026

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None of our directors or executive officers adopted or terminated a Rule 10b5-1 trading arrangement or adopted or terminated a non-Rule 10b5-1 trading arrangement (as defined in Item 408(c) of Regulation S-K) during the quarter ended December 31, 2025.

Not applicable.

PART III

The information concerning directors required by Item 401 of Regulation S-K is included under the section titled “Director Nominees” in our definitive Proxy Statement to be filed pursuant to Regulation 14A within 120 days after the end of the fiscal year to which this report relates (the 2026 Proxy Statement), and that information is incorporated by reference in this Annual Report on Form 10-K (Form 10-K). Information concerning executive officers required by Item 401 of Regulation S-K is located under Part I of this Form 10-K. The information required by Items 405, 407(d)(4) and 407(d)(5) of Regulation S-K is included in the sections titled “Delinquent Section 16(a) Reports”, “Corporate Governance” and “Audit Committee Report” in the 2026 Proxy Statement, and that information is incorporated by reference in this Form 10-K.

We have had a written code of ethics in place since our formation in 1995. Setting the Standard, our Code of Ethics and Business Conduct, applies to all our employees, including our principal executive officer, principal financial officer, and principal accounting officer and controller, and to members of our Board of Directors. A copy of our Code of Ethics and Business Conduct is available on our investor relations website: www.lockheedmartin.com/investor. Printed copies of our Code of Ethics and Business Conduct may be obtained, without charge, by contacting Investor Relations, Lockheed Martin Corporation, 6801 Rockledge Drive, Bethesda, Maryland 20817. We are required to disclose any change to, or waiver from, our Code of Ethics and Business Conduct for our Chief Executive Officer and senior financial officers. We use our website to disseminate this disclosure as permitted by applicable SEC rules.

We have adopted an insider trading policy governing the purchase, sale, and other disposition of our securities by our directors, officers, and employees, and by the Company. We believe this policy is reasonably designed to promote compliance with insider trading laws, rules, and regulations and listing standards applicable to the Company. A copy of our insider trading policy is filed as Exhibit 19 to this Form 10-K.

The information required by Item 402 of Regulation S-K is included in the sections titled “Executive Compensation” and “Director Compensation” in the 2026 Proxy Statement and that information is incorporated by reference in this Form 10-K. The information required by Item 407(e)(5) of Regulation S-K is included under the caption “Compensation Committee Report” in the 2026 Proxy Statement, and that information is incorporated by reference in this Form 10-K.

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The information required by Item 12 related to the security ownership of management and certain beneficial owners is included in the section titled “Other Information” in the 2026 Proxy Statement, and that information is incorporated by reference in this Annual Report on Form 10-K.

Equity Compensation Plan Information

The following table provides information about our equity compensation plans that authorize the issuance of shares of Lockheed Martin common stock to employees and directors. The information is provided as of December 31, 2025.

(1)Column (a) includes, as of December 31, 2025: 1,986,297 shares that have been granted as restricted stock units (RSUs) and 707,678 shares that could be earned pursuant to grants of performance stock units (PSUs) (assuming the maximum number of PSUs are earned and payable at the end of the three-year performance period) under the Lockheed Martin Corporation 2020 Incentive Performance Award Plan (2020 IPA Plan) or predecessor plans and 50,646 stock units payable in stock or cash under the Lockheed Martin Corporation Amended and Restated Directors Equity Plan (Directors Plan) or predecessor plans for non-employee directors. Column (c) includes, as of December 31, 2025, 3,974,274 shares available for future issuance under the 2020 IPA Plan as options, stock appreciation rights, restricted stock awards, RSUs or PSUs and 357,589 shares available for future issuance under the Directors Plan as stock options and stock units. Vested stock units are payable to directors upon their termination of service from our Board, except that directors who have satisfied the stock ownership guidelines may elect to have payment of awards made after January 1, 2018 (together with any dividend equivalents thereon) made on the first business day of April following the one-year anniversary of the grant.

(2)The shares represent annual incentive bonuses and Long-Term Incentive Performance (LTIP) payments earned and voluntarily deferred by employees. The deferred amounts are payable under the Deferred Management Incentive Compensation Plan (DMICP). Deferred amounts are credited as phantom stock units at the closing price of our stock on the date the deferral is effective. Amounts equal to our dividend are credited as stock units at the time we pay a dividend. Following termination of employment, a number of shares of stock equal to the number of stock units credited to the employee’s DMICP account are distributed to the employee. There is no discount or value transfer on the stock distributed. Distributions may be made from newly issued shares or shares purchased on the open market. Historically, all distributions have come from shares held in a separate trust and, therefore, do not further dilute our common shares outstanding. Because the DMICP shares are outstanding, they should be included in the denominator (and not the numerator) of a dilution calculation.

The information required by Item 404 and 407(a) of Regulation S-K is included in the section titled “Corporate Governance” in the 2026 Proxy Statement, and that information is incorporated by reference in this Form 10-K.

The information required by this Item 14 is included in the section titled “Audit Matters” in the 2026 Proxy Statement, and that information is incorporated by reference in this Form 10-K.

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PART IV

List of financial statements filed as part of this Form 10-K

The following financial statements of Lockheed Martin Corporation and consolidated subsidiaries are included in Item 8 of this Annual Report on Form 10-K (Form 10-K) at the page numbers referenced below:

The report of Lockheed Martin Corporation’s independent registered public accounting firm (PCAOB ID:42) with respect to the above-referenced financial statements and their report on internal control over financial reporting are included in Item 8 and Item 9A of this Form 10-K at the page numbers referenced below. Their consent appears as Exhibit 23 of this Form 10-K.

List of financial statement schedules filed as part of this Form 10-K

All schedules have been omitted because they are not applicable, not required or the information has been otherwise supplied in the consolidated financial statements or notes to consolidated financial statements.

Exhibits

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• Exhibits 10.6 through 10.43 constitute management contracts or compensatory plans or arrangements.

None.

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SIGNATURES

Pursuant to the requirements of Section 13 or 15(d) of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

Pursuant to the requirements of the Securities Exchange Act of 1934, this report has been signed below by the following persons on behalf of the registrant and in the capacities and on the dates indicated.

*By Kevin O’Connor pursuant to a Power of Attorney executed by the Directors listed above, which has been filed with this Annual Report on Form 10-K.