PACCAR 10-K 2025-12-31

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 10-K

☒ Annual Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934

For the fiscal year ended December 31**,** 2025

or

☐ Transition Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934

For the transition period from ____ to ____.

Commission File Number 001-14817

PACCAR Inc

(Exact name of Registrant as specified in its charter)

Registrant's telephone number, including area code (425) 468-7400

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

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

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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.

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 ☒

As of June 30, 2025, the aggregate market value of the voting stock held by non-affiliates of the registrant was $49.01 billion.

As of January 31, 2026, there were 525,894,443 shares of common stock, $1 par value, of the registrant outstanding.

DOCUMENTS INCORPORATED BY REFERENCE

Portions of the proxy statement for the annual stockholders meeting to be held on April 28, 2026 are incorporated by reference into Part III of this Form 10-K.

PACCAR Inc – FORM 10-K

INDEX

PART I

PACCAR Inc (the Company or PACCAR), incorporated under the laws of Delaware in 1971, is the successor to Pacific Car and Foundry Company which was incorporated in Washington in 1924. The Company traces its predecessors to Seattle Car Manufacturing Company formed in 1905.

Description of Business

PACCAR is a multinational company operating in three principal industry segments:

(1)

The Truck segment includes the design, manufacture and distribution of high-quality, light-, medium- and heavy-duty commercial trucks. Heavy-duty trucks have a gross vehicle weight (GVW) of over 33,000 lbs (Class 8) in North America and over 16 metric tonnes in Europe and South America. Medium-duty trucks have a GVW ranging from 19,500 to 33,000 lbs (Class 6 to 7) in North America, and in Europe, light- and medium-duty trucks range between 6 and 16 metric tonnes. Trucks are configured with the engine in front of cab (conventional) or cab-over-engine (COE).

(2)

The Parts segment includes the distribution of aftermarket parts for trucks and related commercial vehicles.

(3)

The Financial Services segment includes finance and leasing products and services provided to customers and dealers. PACCAR’s finance and leasing activities are principally related to PACCAR products and associated equipment.

TRUCKS

PACCAR’s trucks are marketed under the Kenworth, Peterbilt and DAF nameplates. These trucks, which are built in three plants in the United States, three in Europe and one each in Australia, Brasil, Canada and Mexico, are used worldwide for over-the-road and off-highway hauling of commercial and consumer goods. The Company also designs and manufactures diesel engines, primarily for use in the Company’s trucks, at its facilities in Columbus, Mississippi; Eindhoven, the Netherlands and Ponta Grossa, Brasil. PACCAR competes in the North American Class 8 market, primarily with Kenworth and Peterbilt conventional models. These trucks are assembled at facilities in Chillicothe, Ohio; Denton, Texas; Renton, Washington; Mexicali, Mexico and Ste. Therese, Canada. PACCAR also competes in the North American Class 6 to 7 markets primarily with Kenworth and Peterbilt conventional models. These trucks are assembled at facilities in Ste. Therese, Canada; Chillicothe, Ohio; Denton, Texas and Mexicali, Mexico. PACCAR competes in the European light/medium market with DAF COE trucks assembled in the United Kingdom (U.K.) by Leyland, one of PACCAR’s wholly owned subsidiaries, and participates in the European heavy market with DAF COE trucks assembled in the Netherlands and the U.K. PACCAR competes in the Brazilian heavy truck market with DAF COE models assembled in Ponta Grossa in the state of Paraná, Brasil. PACCAR competes in the Australian medium and heavy truck markets with Kenworth conventional and COE models and certain DAF COE models assembled at its facility at Bayswater in the state of Victoria, Australia, and DAF COE models primarily assembled in the U.K. Commercial truck manufacturing comprises the largest segment of PACCAR’s business and accounted for 68% of total 2025 net sales and revenues.

Substantially all trucks are sold to independent dealers. The Kenworth and Peterbilt nameplates are marketed and distributed by separate divisions in the U.S. and a foreign subsidiary in Canada. The Kenworth nameplate is also marketed and distributed by foreign subsidiaries in Mexico and Australia. The DAF nameplate is marketed and distributed worldwide by a foreign subsidiary headquartered in the Netherlands and is also marketed and distributed by foreign subsidiaries in Brasil, Australia and Mexico. The decision to operate as a subsidiary or as a division is incidental to PACCAR’s Truck segment operations and reflects legal, tax and regulatory requirements in the various countries where PACCAR operates.

The Truck segment utilizes centrally managed purchasing, information technology, technical research and testing, treasury and finance functions. Some manufacturing plants in North America produce trucks for more than one nameplate, while other plants produce trucks for only one nameplate, depending on various factors. Best manufacturing practices within the Company are shared on a routine basis reflecting the similarity of the business models employed by each nameplate.

The Company’s trucks have a reputation for high quality products, most of which are ordered by dealers according to customer specifications. Some units are ordered by dealers for stocking to meet the needs of certain customers who require immediate delivery or for customers that require the chassis to be fitted with specialized bodies. For a significant portion of the Company’s truck operations, major components, such as engines, transmissions and axles, as well as a substantial percentage of other components, are purchased from component manufacturers pursuant to PACCAR and customer specifications. DAF, which is more vertically integrated, manufactures PACCAR engines and axles and a higher percentage of other components for its heavy truck models. The Company also manufactures engines at its Columbus, Mississippi facility. In 2025, the Company installed PACCAR engines in approximately 29% of the Company’s Kenworth and Peterbilt heavy-duty trucks in the U.S. and Canada and substantially all of the DAF heavy-duty trucks sold throughout the world. Engines not manufactured by the Company are purchased from Cummins Inc. (Cummins). The Company purchased a significant portion of its transmissions from Eaton Corporation Plc. (Eaton) and ZF Friedrichshafen AG (ZF). The Company also purchased a significant portion of North America stampings used for cabs from Magna International Inc. (Magna). The Company has long-term agreements with Cummins, Eaton, ZF and Magna to provide for continuity of supply. A loss of supply from Cummins, Eaton, ZF or Magna, and the resulting interruption in the production of trucks, would have a material effect on the Company’s results. Purchased materials and parts include raw materials, partially processed materials, such as castings, and finished components manufactured by independent suppliers. The Company and its suppliers rely on semiconductors as an essential component in the production of its trucks and aftermarket parts. The Company and its suppliers source semiconductors from various suppliers. Raw materials, partially processed materials and finished components typically make up approximately 85% of the cost of new trucks. The value of finished truck components manufactured by independent suppliers is lower in Europe due to a higher level of vertical integration as compared to North America. In addition to materials, the Company’s cost of sales includes labor and factory overhead, vehicle delivery and warranty. Accordingly, except for certain factory overhead costs such as facilities depreciation, property taxes and utilities, the Company’s cost of sales are highly correlated to sales.

The Company’s DAF subsidiary purchases fully assembled cabs from a competitor, Renault V.I., for its European light-, medium-duty product line pursuant to a joint product development and long-term supply contract. Sales of trucks manufactured with these cabs amounted to approximately 2% of consolidated revenues in 2025. A short-term loss of supply, and the resulting interruption in the production of these trucks, would not have a material effect on the Company’s results of operations. However, a loss of supply for an extended period of time would require the Company to either contract for an alternative source of supply or to manufacture cabs itself.

Other than these components, the Company is not limited to any single source for any significant component, although the sudden inability of a supplier to deliver components could have a temporary adverse effect on production of certain products. Manufacturing inventory levels are based upon production schedules and orders are placed with suppliers accordingly.

Key factors affecting Truck segment earnings include the number of new trucks sold in the markets served and the margins realized on the sales. The Company’s sales of new trucks are dependent on the size of the truck markets served and the Company’s share of those markets. Truck segment sales and margins tend to be cyclical based on the level of overall economic activity, the availability of capital and the amount of freight being transported. The Company’s costs for trucks consist primarily of material costs, which are influenced by the price of commodities such as steel, copper, aluminum and petroleum. The Company utilizes long-term supply agreements to reduce the variability of the unit cost of purchased materials and finished components and engages in hedging activities for some commodities in certain geographical markets. The Company’s spending on research and development varies based on product development cycles and government requirements such as changes to diesel engine emissions and vehicle fuel efficiency standards in the various markets served. The Company maintains rigorous control of selling, general and administrative (SG&A) expenses and seeks to minimize such costs.

There are four principal competitors in the U.S. and Canada commercial truck market. The Company’s share of the U.S. and Canadian Class 8 market was 29.9% of retail sales in 2025, and the Company’s medium-duty market share was 15.9%. In Europe, there are six principal competitors in the commercial truck market, including parent companies to the four competitors of the Company in the U.S. In 2025, DAF had a 13.5% share of the European heavy-duty market and a 9.7% share of the light/medium-duty market. These markets are highly competitive in price, quality and service. PACCAR is not dependent on any single customer for its sales. There are no significant seasonal variations in sales.

The Peterbilt, Kenworth and DAF nameplates are recognized internationally and play an important role in the marketing of the Company’s truck products. The Company engages in a continuous program of trademark and trade name protection in all marketing areas of the world.

The Company’s truck products are subject to noise, emission and safety regulations. Competing manufacturers are subject to the same regulations. The Company believes the cost of complying with these regulations will not be detrimental to its business.

The Company had a total production backlog of $4.9 billion at the end of 2025. Within this backlog, orders scheduled for delivery within three months (90 days) are considered to be firm. The 90‑day backlog approximated $2.6 billion at December 31, 2025, $3.8 billion at December 31, 2024 and $7.6 billion at December 31, 2023. Production of the year-end 2025 backlog is expected to be substantially completed during 2026.

PARTS

The Parts segment includes the distribution of aftermarket parts for trucks and related commercial vehicles to over 2,000 Kenworth, Peterbilt and DAF dealers and more than 350 TRP, PACCAR's aftermarket parts brand, stores in 99 countries around the world. Aftermarket truck parts are sold and delivered to the Company’s independent dealers through the Company’s 21 strategically located parts distribution centers (PDCs) in the U.S., Canada, Europe, Australia, Mexico and Central and South America. Parts are primarily purchased from various suppliers and also manufactured by the Company. Aftermarket parts inventory levels are determined largely by anticipated customer demand and the need for timely delivery. The Parts segment accounted for 24% of total 2025 net sales and revenues.

Key factors affecting Parts segment earnings include the aftermarket parts sold in the markets served and the margins realized on the sales. Aftermarket parts sales are influenced by the total number of the Company’s trucks in service and the average age and mileage of those trucks. To reflect the benefit the Parts segment receives from costs incurred by the Truck segment, certain factory overhead, research and development, engineering and SG&A expenses are allocated from the Truck segment to the Parts segment. The Company’s cost for parts sold consists primarily of material costs, which are influenced by the price of commodities such as steel, copper, aluminum and petroleum. The Company utilizes long-term supply agreements to reduce the variability of the cost of parts sold. The Company maintains rigorous control of SG&A expenses and seeks to minimize such costs.

FINANCIAL SERVICES

PACCAR Financial Services (PFS) operates in 26 countries in North America, Europe, Australia and South America through wholly owned finance companies operating under the PACCAR Financial trade name. PFS also conducts full-service leasing operations through operating divisions or wholly owned subsidiaries in North America, Germany and Australia under the PacLease trade name. Selected dealers in North America and Australia are franchised to provide full-service leasing. PFS provides its franchisees with equipment financing and administrative support. PFS also operates its own full-service lease outlets. PFS’s retail loan and lease customers consist of small, medium and large commercial trucking companies, independent owner/operators and other businesses and acquire their PACCAR trucks principally from independent PACCAR dealers. PFS accounted for 8% of total net sales and revenues and 51% of total assets in 2025.

PFS is primarily responsible for managing the sales of the Company’s used trucks. The Company’s Financial Services segment sells used trucks returned from matured operating leases in the ordinary course of business and trucks acquired from repossessions. PFS also obtains used trucks from the Truck segment in trades related to new truck sales and trucks returned from residual value guarantees (RVGs). Certain gains and losses from the sale of used trucks are shared with the Truck segment. The Company’s Financial Services segment records revenue on the sale of used trucks received in trade and RVG returns.

The Company’s finance receivables are classified as dealer wholesale, dealer retail and customer retail segments. The dealer wholesale segment consists of truck inventory financing to independent PACCAR dealers. The dealer retail segment consists of loans and leases to participating dealers and franchises, which use the proceeds to fund their customers’ acquisition of trucks and related equipment. The customer retail segment consists of loans and leases directly to customers for their acquisition of trucks and related equipment. Customer retail receivables are further segregated by fleet and owner/operator classes. The fleet class consists of customers operating five or more trucks. All others are considered owner/operators. Similar methods are employed to assess and monitor credit risk for each class.

Finance receivables are secured by the trucks and related equipment being financed or leased. The terms of loan and lease contracts generally range from three to five years depending on the type and use of equipment. Payment is required on dealer inventory financing when the floored truck is sold to a customer or upon maturity of the flooring loan, whichever comes first. Dealer inventory loans generally mature within one year.

The Company funds its financial services activities primarily from collections on existing finance receivables and borrowings in the capital markets. The primary sources of borrowings in the capital markets are commercial paper and medium-term notes issued in public and private offerings and, to a lesser extent, bank loans. An additional source of funds is loans from other PACCAR companies. PFS matches the maturity and interest rate characteristics of its debt with the maturity and interest rate characteristics of loans and leases.

Key factors affecting the earnings of the Financial Services segment include the volume of new loans and leases, the yield earned on the loans and leases, the costs of funding investments in loans and leases, the ability to collect the amounts owed to PFS, the volume of used truck sales and used truck prices. New loan and lease volume is dependent on the volume of new trucks sold by Kenworth, Peterbilt and DAF and the share of those truck sales that are financed by the Financial Services segment. The Company’s Financial Services market share is influenced by the extent of competition in the financing market. PFS’s primary competitors include commercial banks and independent finance and leasing companies.

The revenue earned on loans and leases depends on market interest and lease rates and the ability of PFS to differentiate itself from the competition by superior industry knowledge and customer service. Dealer inventory loans have variable rates with rates reset monthly based on an index pertaining to the applicable local market. Retail loan and lease contracts normally have fixed rates over the contract term. PFS obtains funds either through fixed rate borrowings or through variable rate borrowings, a portion of which have been effectively converted to fixed rate through the use of interest-rate contracts. This enables PFS to obtain a stable spread between the cost of borrowing and the yield on fixed rate contracts over the contract term. Included in Financial Services cost of revenues is depreciation on equipment on operating leases. The amount of depreciation on operating leases principally depends on the acquisition cost of leased equipment, the term of the leases, which generally ranges from three to five years, and the residual value of the leases, which generally ranges from 30% to 70%. The margin earned is the difference between the revenues on loan and lease contracts and the direct costs of operation, including interest and depreciation.

PFS incurs credit losses when customers are unable to pay the full amounts due under loan and finance lease contracts. PFS takes a conservative approach to underwriting new retail business in order to minimize credit losses.

The ability of customers to pay their obligations to PFS depends on the state of the general economy, the extent of freight demand, freight rates and the cost of fuel, among other factors. PFS limits its exposure to any one customer, with no one customer or dealer balance representing over 5% of the aggregate portfolio assets. PFS generally requires a down payment and secures its interest in the underlying truck collateral and may require other collateral or guarantees. In the event of default, PFS will repossess the truck and sell it in the open market primarily through its dealer network or PFS used truck centers. PFS will also seek to recover any shortfall between the amounts owed and the amounts recovered from sale of the collateral. The amount of credit losses depends on the rate of default on loans and finance leases and, in the event of repossession, the ability to recover the amount owed from sale of the collateral which is affected by used truck prices and other factors. For over sixty years, PFS’s experience has been that periods of economic weakness result in higher past dues and increased rates of repossession. Used truck prices also tend to fall during periods of economic weakness. As a result, credit losses tend to increase during periods of economic weakness. PFS provides an allowance for credit losses based on specifically identified customer risks and an analysis of estimated losses inherent in the portfolio, considering the amount of past due accounts, the trends of used truck prices and the current and forecasted economic conditions of its geographic markets.

Financial Services SG&A expenses consist primarily of personnel costs associated with originating and servicing the loan and lease portfolios. These costs vary somewhat depending on overall levels of business activity, but given the ongoing nature of servicing activities, tend to be relatively stable.

OTHER BUSINESSES

Other businesses included the manufacturing of industrial winches in two U.S. plants and marketing them under the BRADEN, CARCO and Gearmatic nameplates through October 31, 2024. Sales of industrial winches were less than 1% of total net sales and revenues in 2024 and 2023.

PATENTS

The Company owns numerous patents which relate to all product lines. Although these patents are considered important to the overall conduct of the Company’s business, no patent or group of patents is considered essential to a material part of the Company’s business.

REGULATION

As a manufacturer of highway trucks, the Company is subject to the National Traffic and Motor Vehicle Safety Act and Federal Motor Vehicle Safety Standards promulgated by the National Highway Traffic Safety Administration as well as environmental laws and regulations in the United States, and is subject to similar regulations in all countries where it has operations and where its trucks are distributed. In addition, the Company is subject to certain other licensing requirements to do business in the United States and Europe. The Company believes it is in compliance with laws and regulations applicable to safety standards, the environment and other licensing requirements in all countries where it has operations and where its trucks are distributed.

The Company designs and manufactures engines for use in PACCAR vehicles worldwide. The Company’s operations and products are subject to extensive statutory and regulatory requirements governing greenhouse gas, non-greenhouse gas emissions and batteries. These include standards imposed by the U.S. Environmental Protection Agency (EPA), the European Union, U.S. state regulatory agencies (such as the California Air Resources Board), regulatory agencies in other international markets where the Company operates, and international accords related to climate change including the Paris Agreement. The primary laws and regulations are the EPA’s Greenhouse Gas Emissions Standards and Fuel Efficiency Standards for Medium and Heavy-Duty Engines and Vehicles, EPA’s Low NOx Rule, the Regulation of the European Parliament and of the Council on the Monitoring and Reporting of CO2 Emissions from Fuel Consumption of New Heavy-Duty Vehicles, and the Heavy-Duty Omnibus Regulation and, subject to pending litigation, the Advanced Clean Truck (ACT) regulation of the California Air Resources Board.

The Company continually monitors developments in emissions and climate change-related laws and regulations in the markets in which the Company conducts business. The Company will continue to fund capital and research and development (R&D) projects to meet future emissions and certification requirements through the introduction of new technologies into our products, engines and exhaust after-treatment systems.

The Company’s manufacturing and assembly plants are subject to environmental laws and regulations such as regulating air emissions, water discharges and the handling and disposal of hazardous substances. Failure to comply with these regulations could lead to fines and other penalties. The Company believes in all material respects it is in compliance with the laws and regulations applicable to our plants and operations.

Information regarding the effects that compliance with international, federal, state and local environmental regulations have on the Company’s capital and operating expenditures and the Company’s involvement in environmental matters is included in Item 1A, “Risk Factors” and in Management’s Discussion and Analysis of Financial Condition and Results of Operations and the Company’s Consolidated Financial Statements in Items 7 and 8, respectively.

HUMAN CAPITAL MANAGEMENT

PACCAR is committed to a strong and collaborative culture and the Company’s excellent financial results reflect its outstanding workforce. The Company provides its employees with robust benefit packages, comprehensive training programs, tuition assistance and a work environment that promotes safety and respect. The Company is also embedding artificial intelligence (AI) across its business to drive innovation, profitable growth and enhanced performance for PACCAR’s customers.

On December 31, 2025, the Company had approximately 25,900 employees. Approximately 40% were U.S. employees.

ENVIRONMENTAL AND SUSTAINABILITY LEADERSHIP

Reducing the environmental impact of the Company’s activities and products is an integral part of the Company’s process of continuous improvement. PACCAR’s commitment to the environment is demonstrated in the Company’s energy efficient operations and technologically advanced products. The Company’s environmental management system and policy are designed to focus on the reduction of the environmental impacts of the Company’s activities, products and services.

PACCAR has publicly disclosed greenhouse gas emissions on its website and through CDP (formerly Carbon Disclosure Project) since 2014 and has established greenhouse gas emission reduction targets approved by the Science Based Targets Initiative (SBTi). PACCAR expects to continue to significantly invest in technologies to improve fuel efficiency for its customers, which would also reduce greenhouse gas emissions.

Operations - PACCAR is committed to environmental responsibility in the vehicle production process. PACCAR is continuously looking for ways to reduce waste, reuse materials, conserve energy in its facilities and reduce the environmental impact of our activities. PACCAR’s factories are ISO 14001 certified and more than 80% are zero waste-to-landfill.

Innovative Products - A key element of PACCAR’s environmental strategy is to offer our customers commercial vehicles that reduce environmental impacts. The Company invests in technologies that reduce greenhouse gas emissions such as highly fuel-efficient diesel engines, biofuel engines, as well as next generation electric and hybrid powertrains and battery cell and pack technology. To develop these industry-leading products and technologies, PACCAR makes significant research and development and capital investments every year.

PACCAR’s Zero Emissions Trucks - PACCAR’s research and development efforts include demonstration and development projects for Kenworth, Peterbilt and DAF vehicles, including battery-electric, hydrogen combustion and hybrid technologies. PACCAR is currently producing battery-electric Kenworth, Peterbilt and DAF trucks.

Low Carbon and Renewable Fuels - All truck sales and diesel engine unit sales are certified to use biofuels. PACCAR’s MX-13 and MX-11 engines are certified to use B7 and B100 biofuels in Europe and B20 biofuel in the U.S. Engines used in PACCAR trucks not manufactured by the Company are certified to use up to B20 biofuels.

Advanced Vehicles - PACCAR continued its work on the SuperTruck 3 program, a U.S. Department of Energy (DOE) initiative to develop state-of-the-art zero emissions medium- and heavy-duty trucks, until the cancellation of the program in 2025. The SuperTruck initiative, launched in 2009, has driven significant advancements in heavy-duty truck freight efficiency, and Kenworth and Peterbilt have successfully deployed many of those technologies in production. PACCAR continues to independently advance key battery-electric vehicle technologies and drive towards their implementation.

Remanufacturing - Remanufacturing is the industrial process of returning a previously used component to “like-new” condition. Remanufacturing helps the environment by reducing waste. PACCAR’s aftermarket parts division sells remanufactured engines and many other remanufactured components. PACCAR is investing in additional global engine manufacturing capacity, and has constructed a new engine remanufacturing facility in Columbus, Mississippi. The Company also has engine remanufacturing capacity on its Eindhoven Campus in the Netherlands.

Connected Trucks and Driver Training - PACCAR Connect fleet management system gives fleet customers real-time information on vehicle and driver performance including fuel consumption, fleet utilization, idle time and route optimization. This information enables customers to improve fleet operating efficiency and reduce fuel consumption and CO2 emissions. PACCAR has introduced technologies that train drivers to operate vehicles more efficiently.

Battery Manufacturing - PACCAR, Cummins, Daimler Trucks and EVE Energy have partnered to produce state-of-the-art commercial vehicle batteries in a 21-gigawatt hour (GWh) factory in Marshall County, Mississippi. Along with our joint venture partners, the Company is reviewing the timing of investments as a result of changing market-adoption projections.

OTHER DISCLOSURES

The Company’s filings on Forms 10‑K, 10‑Q and 8‑K and any amendments to those reports can be found on the Company’s website www.paccar.com free of charge as soon as practicable after the report is electronically filed with, or furnished to, the Securities and Exchange Commission (SEC). The information on the Company’s website is not incorporated by reference into this report. In addition, the Company’s reports filed with the SEC can be found at www.sec.gov.

INFORMATION ABOUT THE COMPANY’S EXECUTIVE OFFICERS

Information about the Company’s Executive Officers as of February 18, 2026 is as follows:

Officers are appointed by the Board of Directors annually but may be appointed or removed on interim dates.

The following are significant risks which could have a material negative impact on the Company’s financial condition or results of operations.

Business and Industry Risks

Commercial Truck Market Demand is Variable. The Company’s business is highly sensitive to global and national economic conditions as well as economic conditions in the industries and markets it serves. Negative economic conditions and outlook can materially weaken demand for the Company’s equipment and services. The yearly demand for commercial vehicles may increase or decrease more than overall gross domestic product in markets the Company serves, which are principally North America and Europe. Demand for commercial vehicles may also be affected by the introduction of new vehicles and technologies by the Company or its competitors.

Competition and Prices. The Company operates in a highly competitive environment, which could adversely affect the Company’s sales and pricing. Financial results depend largely on the ability to develop, manufacture and market competitive products that profitably meet customer demand.

Production Costs, Capacity and Inflation. The Company’s products are exposed to variability in material and commodity costs. Commodity or component price increases, cost pressures due to inflation, significant shortages of component products and labor availability may adversely impact the Company’s financial results or use of its production capacity. Many of the Company’s suppliers also supply automotive manufacturers, and factors that adversely affect the automotive industry can also have adverse effects on these suppliers and the Company. Supplier delivery performance can be adversely affected if increased demand for these suppliers’ products exceeds their production capacity.

Unexpected events, including natural disasters, extreme weather events, or pandemics, may increase the Company’s cost of doing business or disrupt the Company’s or its suppliers’ operations. The likelihood or severity of these unexpected events may increase due to the effects of climate change.

Transition Risks Related to Climate Change. The Company has ongoing product development programs intended to address changing customer demand in the context of climate change and achieve its targeted reductions in emissions. These involve the continuing development of compliant clean diesel powertrains and the design, manufacture, and sale of alternative powertrain commercial vehicles (e.g., battery-electric, hybrid, hydrogen fuel cell, and hydrogen combustion). The pace of transition from diesel combustion to alternative powertrain commercial vehicles is highly uncertain and will be influenced by:

the success of the Company’s research and development programs

customer demand for alternative powertrain vehicles

advancements in battery-electric, hybrid, hydrogen fuel cell, and hydrogen combustion technology

the cost of batteries, hydrogen fuel cells and liquid hydrogen

global regulations requiring the use of alternative powertrain vehicles and/or providing incentives to facilitate the transition to alternative powertrain commercial vehicles

investments in energy and power infrastructure (e.g., renewable power supply, electric charging services, hydrogen supply and distribution) in key markets, as well as the associated utility costs

the ability of the supply chain to deliver components, including commodities and raw materials that are unique to alternative powertrain commercial vehicles

the success of new and existing competitors in developing and selling alternative powertrain commercial vehicles

litigation or activism by certain regulators, shareholders, environmental groups or other stakeholders.

The Company believes its current strategies, programs and resources are sufficient to address changes in customer demand in the context of climate change and to meet its emissions reduction targets. If the Company is not successful in addressing the risks noted above, there may be a material adverse impact on its business, operations, and financial condition.

Liquidity Risks, Credit Ratings and Costs of Funds. Disruptions or volatility in global financial markets could limit the Company’s sources of liquidity, or the liquidity of customers, dealers and suppliers. A lowering of the Company’s credit ratings could increase the cost of borrowing and adversely affect access to capital markets. The Company’s Financial Services segment obtains funds for its operations from commercial paper, medium-term notes and bank debt. If the markets for commercial paper, medium-term notes and bank debt do not provide the necessary liquidity in the future, the Financial Services segment may experience increased costs or may have to limit its financing of retail and wholesale assets. This could result in a reduction of the number of vehicles the Company is able to produce and sell to customers.

The Financial Services Industry is Highly Competitive. The Company’s Financial Services segment competes with banks, other commercial finance companies and financial services firms which may have lower costs of borrowing, higher leverage or market share goals that result in a willingness to offer lower interest rates, which may lead to decreased margins, lower market share or both. A decline in the Company’s truck unit sales or a decrease in used truck prices are also factors which may affect the Company’s Financial Services segment.

The Financial Services Segment is Subject to Credit Risk. The Financial Services segment is exposed to the risk of loss arising from the failure of a customer, dealer or counterparty to meet the terms of the loans, leases and derivative contracts with the Company. Although the financial assets of the Financial Services segment are secured by the underlying equipment and sometimes other collateral, in the event a customer cannot meet its obligations to the Company, there is a risk the value of the underlying collateral will not be sufficient to recover the amounts owed to the Company, resulting in credit losses.

Interest-Rate Risks. The Financial Services segment is subject to interest-rate risks, because increases in interest rates can reduce demand for its products, increase borrowing costs and potentially reduce interest margins. PFS uses derivative contracts to match the interest-rate characteristics of its debt to the interest-rate characteristics of its finance receivables in order to mitigate the risk of changing interest rates.

Information Technology, Cybersecurity and AI. The Company relies on information technology systems and networks, some of which are managed by third parties, to process, transmit and store electronic information, and to manage or support a variety of its business processes and activities. Some of the Company’s products include telematics which provide over-the-air software updates, advanced fleet management tools and real-time data on driver and vehicle performance. These computer systems and networks may be subject to disruptions during the process of upgrading or replacing software, databases or components; power outages; hardware failures; computer viruses/malware; or outside parties attempting to disrupt the Company’s business or gain unauthorized access to the Company’s electronic data.

The Company maintains a cybersecurity insurance policy and continues to invest in protections to guard against such events. Despite these safeguards, there remains a risk of system disruptions, unauthorized access and data loss. If the Company’s computer systems were to be damaged, disrupted or breached, it could impact data availability and integrity, result in a theft of the Company’s intellectual property or lead to unauthorized disclosure of confidential information of the Company’s customers, suppliers and employees. Security breaches could also result in a violation of U.S. and international privacy and other laws and subject the Company to various litigations and governmental proceedings. These events could have an adverse impact on the Company’s results of operations and financial condition, damage its reputation, disrupt operations and negatively impact competitiveness in the marketplace.

The Company is deploying AI tools to reduce operational costs and enhance performance for the Company and its customers, including the use of AI in its predictive analytics technology to forecast and implement vehicle service parameters to improve vehicle uptime. The Company's business, financial condition and result of operations may eventually be adversely affected if it fails to integrate these rapidly developing technologies in a timely, cost-effective, compliant and responsible manner.

Political, Regulatory and Economic Risks

Multinational Operations. The Company’s global operations are exposed to political, economic and other risks and events beyond its control in the countries in which the Company operates. The Company may be adversely affected by political instabilities, fuel shortages or interruptions in utility or transportation systems, natural calamities, recessions or slower economic growth, inflation, epidemics and pandemics, wars, geopolitical tensions and conflicts, terrorism and labor strikes. Changes in government monetary or fiscal policies and international trade policies, including tariffs, may impact demand for the Company’s products, financial results and competitive position. PACCAR’s global operations are subject to extensive trade, competition and anti-corruption laws and regulations that could impose significant compliance costs.

Environmental Regulations. The Company’s operations are subject to environmental laws and regulations that impose significant compliance costs. The Company could experience higher research and development and manufacturing costs due to changes in government requirements for its products, including changes in emissions, fuel, greenhouse gas or other regulations.

Emissions Requirements and Reduction Targets. PACCAR’s operations and products are subject to extensive statutory and regulatory requirements governing greenhouse gas and non-greenhouse gas emissions. These include standards imposed by the U.S. Environmental Protection Agency (EPA), the European Union, U.S. state regulatory agencies (such as the California Air Resources Board), regulatory agencies in other international markets where the Company operates, and international accords. The primary laws and regulations are the EPA’s Greenhouse Gas Emissions Standards and Fuel Efficiency Standards for Medium and Heavy-Duty Engines and Vehicles, EPA’s Low NOx Rule, the Regulation of the European Parliament and of the Council on the Monitoring and Reporting of CO2 Emissions from Fuel Consumption of New Heavy-Duty Vehicles, and the Heavy-Duty Omnibus Regulation, Emergency Rulemaking and, subject to pending litigation, the Advanced Clean Truck (ACT) regulation of the California Air Resources Board (CARB). The EU regulations have set CO2 emission reduction targets and require a significant portion of vehicles sold to be zero or near zero emission. Not meeting these targets would result in significant fines by the EU Commission. California's ACT regulation, which has been adopted by several states, requires an increasing percentage of medium- and heavy-duty trucks sold into the state to be zero emission. CARB's authority to enact the ACT regulations has been revoked by the U.S. Congress and President; however, the revocation, is currently being challenged and the outcome is uncertain.

The Company’s product planning is aligned with these statutory and regulatory requirements. Even without legislation to reduce greenhouse gas emissions, PACCAR expects to continue to significantly invest in technologies to improve fuel efficiency for its customers, which would further reduce greenhouse gas emissions.

The Company continually monitors developments in emissions and climate change-related laws and regulations in the markets in which the Company conducts business, and expects that climate change-related laws, regulations, and international accords will continue to evolve. PACCAR cannot reasonably predict whether future laws, regulations, and international accords could materially increase its environmental compliance costs, alter its product development strategy, or impact its business, financial condition, or results of operations.

Recalls, Litigation, Product Liability and Regulatory. The Company’s products are subject to recall for environmental, performance and safety-related issues. Product recalls, lawsuits, regulatory actions or increases in the reserves the Company establishes for contingencies may increase the Company’s costs and lower profits. Due to the international nature of the Company’s business, some products are also subject to international trade regulations, including customs and import/export related laws and regulations, government embargoes and sanctions prohibiting sales to specific persons or countries, as well as anti-corruption laws. The Company’s telematics depend on cellular frequency allocations regulated by government agencies and collected data is subject to various privacy laws and government regulations. The Company’s reputation and its brand names are valuable assets, and claims or regulatory actions, even if unsuccessful or without merit, could adversely affect the Company’s reputation and brand images because of adverse publicity.

Currency Exchange and Translation. The Company’s consolidated financial results are reported in U.S. dollars, while significant operations are denominated in the currencies of other countries. Currency exchange rate fluctuations can affect the Company’s assets, liabilities and results of operations through both translation and transaction risk, as reported in the Company’s financial statements. The Company uses certain derivative financial instruments and localized production of its products to reduce, but not eliminate, the effects of foreign currency exchange rate fluctuations.

Accounting Estimates. In the preparation of the Company’s financial statements in accordance with U.S. generally accepted accounting principles, management uses estimates and makes judgments and assumptions that affect asset and liability values and the amounts reported as income and expense during the periods presented. Certain of these estimates, judgments and assumptions, such as residual values on operating leases, the allowance for credit losses and product warranty are particularly sensitive. If actual results are different from estimates used by management, they may have a material impact on the financial statements. For additional disclosures regarding accounting estimates, see “Critical Accounting Policies” under Item 7 of this Form 10-K.

Taxes. Changes in statutory income tax rates in the countries in which the Company operates impact the Company’s effective tax rate. Changes to other taxes or the adoption of other new tax legislation could affect the Company’s provision for income taxes and related tax assets and liabilities.

None.

The Company maintains a comprehensive cybersecurity management and governance program. The Company’s information security management system is based upon the National Institute of Standards and Technology Cybersecurity Framework (NIST CSF). The Company engages internal and third-party auditors and other professional parties when necessary, as part of its cybersecurity management program. The Company conducts penetration and compromise assessment tests, implements detection and prevention tools, monitors cyber events and has active disaster recovery plans. For third-party IT services, the Company conducts an architectural, privacy and security analysis of their solution. If any gaps are identified, the third-party remediates or mitigates the risk to an acceptable level. The Company simulates potential cyber-attacks and performs incident responses to test preparedness. These exercises are used to train and update the Company’s Incident Response plan, including any gaps identified. The Company conducts yearly information security training for employees and conducts ongoing phishing tests.

The Company’s Security Risk Council, including the Chief Information Security Officer, meets regularly to cover risks, plans and updates to the security program. It briefs the Board of Directors and/or the Audit Committee of the Board of Directors on technology and information security matters. Management and the Board of Directors also receive periodic updates on the status of cybersecurity investments to guard against such events. In the event of a security breach, the Company’s Security Risk Council evaluates its significance and briefs the Board on the event.

The Company has not experienced any notable security incidents that would have a material impact on the results of operations and financial condition of the Company. Some dealers and suppliers have reported they have experienced cyberattacks and those have not caused any material impact to the Company.

The Company and its subsidiaries own and operate manufacturing plants in four U.S. states, three countries in Europe, and in Australia, Brasil, Canada and Mexico. The Company also has 21 parts distribution centers, many sales and service offices, and finance and administrative offices which are operated in owned or leased premises in these and other locations, including an office in India. Facilities for product testing and research and development are located in the state of Washington and the Netherlands. The Company also has an innovation center in Sunnyvale, California. The Company’s corporate headquarters is located in owned premises in Bellevue, Washington. The Company considers all of the properties used by its businesses to be suitable for their intended purposes.

The Company invests in facilities, equipment and processes to provide manufacturing and warehouse capacity to meet its customers’ needs and improve operating performance.

The following summarizes the number of the Company’s manufacturing plants and parts distribution centers by geographical location within indicated industry segments:

Refer to Note L – “Commitments and Contingencies” in the Notes to Consolidated Financial Statements (Part II, Item 8) for discussion on litigation matters, which is incorporated by reference herein.

Not applicable.

PAR****T II

(a)

Market Information, Holders, Dividends, Securities Authorized for Issuance Under Equity Compensation Plans and Performance Graph.

Market Information and Holders.

Common stock of the Company is traded on the Nasdaq Stock Market under the symbol PCAR. There were 1,320 record holders of the common stock at December 31, 2025. The Company expects to continue paying regular cash dividends, although there is no assurance as to future dividends because they are dependent upon future earnings, capital requirements and financial conditions.

Securities Authorized for Issuance Under Equity Compensation Plans.

The following table provides information as of December 31, 2025 regarding compensation plans under which PACCAR equity securities are authorized for issuance.

All stock compensation plans have been approved by the stockholders.

The number of securities to be issued includes those issuable under the PACCAR Inc Long Term Incentive Plan (LTI Plan) and the Restricted Stock and Deferred Compensation Plan for Non-Employee Directors (RSDC Plan). Securities to be issued include 314,814 shares that represent deferred cash awards payable in stock.

Securities available for future grant are authorized under the following two plans: (i) 12,752,820 shares under the LTI Plan, and (ii) 911,997 shares under the RSDC Plan.

Stockholder Return Performance Graph

The following line graph compares the yearly percentage change in the cumulative total stockholder return on the Company’s common stock, to the cumulative total return of the Standard & Poor’s Composite 500 Stock Index and the return of the industry peer group of companies identified below (the “Peer Group Index”) for the last five fiscal years ended December 31, 2025. The Peer Group Index includes AGCO Corporation, Caterpillar Inc., Cummins Inc., Daimler Truck Holdings AG (effective January 1, 2022), Deere & Company, Eaton Corporation, Iveco Group N.V. (effective January 1, 2022), Oshkosh Corporation, Terex Corporation, TRATON SE and AB Volvo. Standard & Poor’s has calculated a return for each company in the Peer Group Index weighted according to its respective capitalization at the beginning of each period with dividends reinvested on a monthly basis. Management believes that the identified companies and methodology used in the graph for the Peer Group Index provide a better comparison than other indices available. The comparison assumes that $100 was invested December 31, 2020, in the Company’s common stock and in the stated indices and assumes reinvestment of dividends.

(b)

Use of Proceeds from Registered Securities.

Not applicable.

(c)

Purchases of Equity Securities by the Issuer and Affiliated Purchasers.

On December 4, 2018, PACCAR’s Board of Directors approved the repurchase of up to $500.0 million of the Company’s outstanding common stock. As of December 31, 2025, the Company has repurchased $128.4 million of shares under this plan. There were no repurchases made during the fourth quarter of 2025.

OVERVIEW:

PACCAR is a global technology company whose Truck segment includes the design and manufacture of high-quality light-, medium- and heavy-duty commercial trucks. In the U.S. and Canada, trucks are sold under the Kenworth and Peterbilt nameplates, in Europe, under the DAF nameplate and in Mexico, Australia and South America, under the Kenworth and DAF nameplates. The Parts segment includes the distribution of aftermarket parts for trucks and related commercial vehicles. The Company’s Financial Services segment derives its earnings primarily from financing or leasing PACCAR products in North America, Europe, Australia and South America.

2025 Financial Highlights

Worldwide net sales and revenues were $28.44 billion in 2025 compared to $33.66 billion in 2024, primarily due to lower truck revenues, partially offset by higher parts and financial services revenues.

Truck sales were $19.37 billion in 2025 compared to $24.84 billion in 2024 due to lower truck deliveries in all major markets.

Parts sales were $6.87 billion in 2025 compared to $6.67 billion in 2024, reflecting higher sales in the U.S. and Canada and Europe.

Financial Services revenues were $2.21 billion in 2025 compared to $2.10 billion in 2024, primarily due to higher interest income driven by retail portfolio growth and higher portfolio yields.

In 2025, PACCAR earned net income for the 87th consecutive year. Net income was $2.38 billion ($4.51 per diluted share) in 2025 compared to $4.16 billion ($7.90 per diluted share) in 2024.

Adjusted net income (non-GAAP), excluding a $264.5 million after-tax charge related to civil litigation in Europe, was $2.64 billion ($5.01 per diluted share). After-tax return on beginning equity (ROE) was 13.6% in 2025, which includes the $264.5 million after-tax charge related to civil litigation in Europe in the first quarter of this year. Excluding the after-tax charge, adjusted ROE (non-GAAP) was 15.1%. This compares to an ROE of 26.2% in 2024. See Reconciliation of GAAP to Non-GAAP Financial Measures on page 31.

Capital investments were $728.5 million in 2025 compared to $795.8 million in 2024.

Research and development (R&D) expenses were $445.5 million in 2025 compared to $452.9 million in 2024.

Kenworth constructed a 46,000 square-foot robotic chassis paint facility in Chillicothe, Ohio. PACCAR also completed a new $35 million, 50,000 square-foot engine remanufacturing facility and is enhancing its existing engine factory in Columbus, Mississippi. PACCAR is also enhancing its other engine facility in the Netherlands. PACCAR opened a new 180,000 square-foot Parts Distribution Center (PDC) in Calgary, Canada, to enhance parts delivery to dealers and customers in the region.

The PACCAR Financial Services (PFS) group of companies has operations covering four continents and 26 countries. The global breadth of PFS and its rigorous credit application process support a portfolio of loans and leases with total assets of $22.80 billion. PFS issued $3.12 billion in medium-term notes during 2025 to support new business volume and market share growth and repay maturing debt.

Truck Outlook

Truck industry heavy-duty retail sales in the U.S. and Canada in 2026 are expected to be 230,000 to 270,000 units compared to 232,800 in 2025. In Europe, the 2026 truck industry registrations for over 16-tonne vehicles are expected to be 280,000 to 320,000 units compared to 297,000 in 2025. In South America, heavy-duty truck industry registrations in 2026 are projected to be 100,000 to 110,000 compared to 115,000 in 2025.

The Company's truck and parts products have been negatively affected since March 2025 by import tariffs imposed by the U.S. government and actions taken by other countries. While the Company has taken mitigating actions to reduce the impact, the ongoing impact from import tariffs on truck order intake and profit margins remains unfavorable. The Company's North American truck factories are optimally located to operate under the new Section 232 truck tariffs that began in November 2025. The Company’s tariff exposure is minimized by producing trucks locally for the United States, Canada and Mexico. The Company manufactures its trucks for U.S. customers in its Ohio, Texas, and Washington state factories.

The recent U.S. Environmental Protection Agency announcement reaffirmed the EPA27 NOx limit and could eliminate changes to extended warranty requirements and useful life requirements on new emissions systems. The Company's results could be impacted by changes in tariff policy, including the expected U.S. Supreme Court ruling on the International Emergency Economic Power Acts (IEEPA) tariffs, emissions regulations and improving freight fundamentals.

Parts Outlook

In 2026, PACCAR Parts sales are expected to increase 4-8% compared to 2025, depending on the economic conditions.

Financial Services Outlook

In 2026, average earning assets are expected to be comparable to 2025. The used truck market has been improving, which is reflected in PFS' quarterly results this year. If freight transportation conditions decline due to a weaker economy, then past due accounts, truck repossessions and credit losses would likely increase from the current levels and new business volume and average earning assets would likely decline.

Capital Investments and R&D Outlook

PACCAR's excellent long-term profits, strong balance sheet and consistent focus on quality have enabled the Company to invest $9.2 billion in new and expanded facilities, innovative products and new technologies during the past decade. Capital investments in 2026 are expected to be $725 to $775 million, and R&D is expected to be $450 to $500 million. PACCAR is investing in next generation clean diesel and alternative powertrains, integrated connected vehicle services, flexible manufacturing capabilities and autonomous and advanced driver assistance systems that create value for customers. The Company is embedding artificial intelligence across its business to drive innovation, profitable growth and enhanced performance for the Company's customers. In addition to the capital and R&D investments, the Company expects to continue investing in its U.S.-based battery joint venture, Amplify Cell Technologies.

See the Forward-Looking Statements section of Management’s Discussion and Analysis for factors that may affect these outlooks.

RESULTS OF OPERATIONS:

The Company’s results of operations for the years ended December 31, 2025 and 2024 are presented below. For information on the year ended December 31, 2023, refer to Part II, Item 7 in the 2024 Annual Report on Form 10-K.

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Currencies are presented in millions for the market risks and derivative instruments sections below.

Interest-Rate Risks - See Note P for a description of the Company’s hedging programs and exposure to interest rate fluctuations. The Company measures its interest-rate risk by estimating the amount by which the fair value of interest-rate sensitive assets and liabilities, including derivative financial instruments, would change assuming an immediate 100 basis point increase across the yield curve as shown in the following table:

Currency Risks - The Company enters into foreign currency exchange contracts to hedge its exposure to exchange rate fluctuations of foreign currencies, particularly the Canadian dollar, the euro, the British pound, the Australian dollar, the Brazilian real and the Mexican peso (see Note P for additional information concerning these hedges). Based on the Company’s sensitivity analysis, the potential loss in fair value for such financial instruments from a 10% unfavorable change in quoted foreign currency exchange rates would be a loss of $96.8 related to contracts outstanding at December 31, 2025, compared to a loss of $126.3 at December 31, 2024. These amounts would be largely offset by changes in the values of the underlying hedged exposures.

Commodity Price Risks - The Company enters into commodity forward contracts to hedge the prices of certain commodities used in the production of trucks (see Note P for additional information concerning these hedges). The objective is to reduce the fluctuation in earnings and cash flows associated with adverse movement in commodity prices. Based on the Company’s sensitivity analysis, the potential loss in fair value for such financial instruments from a 10% unfavorable change in quoted commodity prices would be $.9 related to contracts outstanding at December 31, 2025, compared to a loss of nil at December 31, 2024. The Company had no commodity contracts at December 31, 2024.

,

CONSOLIDATED STAT****EMENTS OF INCOME

See notes to consolidated financial statements.

CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME

See notes to consolidated financial statements.

CONSOLIDATED BALANCE SHEETS

CONSOLIDATED B****ALANCE SHEETS

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The registrant has not had any disagreements with its independent auditors on accounting or financial disclosure matters.

Disclosure Controls and Procedures.

The Company’s management, with the participation of the Principal Executive Officer and Principal Financial Officer, conducted an evaluation of the effectiveness of the Company’s disclosure controls and procedures (as defined in Exchange Act Rule 13a-15(e)) as of the end of the period covered by this report. Based on that evaluation, the Principal Executive Officer and Principal Financial Officer concluded that the Company’s disclosure controls and procedures were effective as of the end of the period covered by this report.

Management’s Report on Internal Control over Financial Reporting.

Management’s Report on Internal Control over Financial Reporting on page 79 and Report of Independent Registered Public Accounting Firm on the Company’s internal control over financial reporting on page 81 for the year ended December 31, 2025, are included in this Form 10-K.

There have been no changes in the Company’s internal controls over financial reporting during the fourth quarter of 2025 that have materially affected, or are reasonably likely to materially affect, the Company’s internal control over financial reporting.

None of the Company’s directors or officers adopted, modified or terminated a Rule 10b5-1 trading arrangement or a non-Rule 10b5-1 trading arrangement during the Company’s year ended December 31, 2025, as such terms are defined under Item 408(a) of Regulation S-K.

Not applicable.

PART III

Item 401(a), (d), and (e) of Regulation S-K:

The following information is included in the proxy statement for the annual stockholders meeting of April 28, 2026 and is incorporated herein by reference:

Identification of directors, family relationships, and business experience is included under the caption “ITEM 1: ELECTION OF DIRECTORS.”

Item 401(b) of Regulation S-K:

Information about the Company’s executive officers is included in Part I, Item 1 of this Form 10-K.

Item 405 of Regulation S-K:

The information required by this item is included in the proxy statement for the annual stockholders meeting of April 28, 2026 and is incorporated herein by reference.

Item 406 of Regulation S-K:

The Company has adopted a Code of Ethics applicable to the registrant’s senior financial officers including the Chief Executive Officer and Chief Financial Officer. The Company, in accordance with Item 406 of Regulation S‑K, has posted this Code of Ethics on its website at www.paccar.com. The Company intends to disclose on its website any amendments to, or waivers from, its Code of Ethics that are required to be publicly disclosed pursuant to the rules of the Securities and Exchange Commission. The information on the Company’s website is not incorporated by reference into this report.

Item 407(d)(4) and 407(d)(5) of Regulation S‑K:

The following information is included in the proxy statement for the annual stockholders meeting of April 28, 2026 and is incorporated herein by reference:

Identification of the audit committee is included under the caption “THE AUDIT COMMITTEE.”

Identification of audit committee financial experts is included under the caption “AUDIT COMMITTEE REPORT.”

Item 408(b) of Regulation S-K:

The Company maintains insider trading policies and procedures governing the purchase and sale of the Company’s securities by directors, officers and employees that are reasonably designed to promote compliance with applicable insider trading laws, rules and regulations and Nasdaq listing standards. The Company’s insider trading policies and procedures are included as Exhibit 19 of this Form 10-K.

The following information is included in the proxy statement for the annual stockholders meeting of April 28, 2026 and is incorporated herein by reference:

Compensation of Directors is included under the caption “COMPENSATION OF DIRECTORS.”

Compensation of Executive Officers and Related Matters is included under the caption “COMPENSATION OF EXECUTIVE OFFICERS.”

Compensation Committee Report is under the caption “COMPENSATION COMMITTEE REPORT.”

Stock ownership information is included under the captions “STOCK OWNERSHIP OF CERTAIN BENEFICIAL OWNERS” and “STOCK OWNERSHIP OF DIRECTORS AND EXECUTIVE OFFICERS” in the proxy statement for the annual stockholders meeting of April 28, 2026 and is incorporated herein by reference.

Information regarding equity compensation plans required by Regulation S‑K Item 201(d) is provided in Item 5 of this Form 10‑K.

No transactions with management and others as defined by Item 404 of Regulation S‑K occurred in 2025.

Information concerning director independence is included under the caption “BOARD GOVERNANCE” in the proxy statement for the annual stockholders meeting of April 28, 2026 and is incorporated herein by reference.

Our independent registered public accounting firm is Ernst & Young LLP, Seattle, Washington (Auditor Firm ID No. 42).

Principal accounting fees and services information is included under the caption “INDEPENDENT AUDITORS” in the proxy statement for the annual stockholders meeting of April 28, 2026 and is incorporated herein by reference.

PART IV

(a) (1) Listing of financial statements

The following consolidated financial statements of PACCAR Inc are included in Item 8:

Consolidated Statements of Income

— Years Ended December 31, 2025, 2024 and 2023

Consolidated Statements of Comprehensive Income

— Years Ended December 31, 2025, 2024 and 2023

Consolidated Balance Sheets

— December 31, 2025 and 2024

Consolidated Statements of Cash Flows

— Years Ended December 31, 2025, 2024 and 2023

Consolidated Statements of Stockholders’ Equity

— Years Ended December 31, 2025, 2024 and 2023

Notes to Consolidated Financial Statements

— December 31, 2025, 2024 and 2023

(2)

Listing of financial statement schedules

All schedules are omitted because the required matter or conditions are not present or because the information required by the schedules is submitted as part of the consolidated financial statements and notes thereto.

(3)

Listing of Exhibits (in order of assigned index numbers):

(b)

Exhibits (Exhibits filed with the Securities and Exchange Commission are not included herein. Copies of exhibits will be furnished to stockholders at a cost of 25¢ per page upon written request addressed to Corporate Secretary, PACCAR Inc, P.O. Box 1518, Bellevue, Washington 98009).

(c)

Financial Statement Schedules – All schedules are omitted because the required matter or conditions are not present or because the information required by the schedules is submitted as part of the consolidated financial statements and notes thereto.

SIGNAT****URES

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 indicated.