MARTEN TRANSPORT LTD (MRTN) Risk Factors

ITEM 1A. RISK FACTORS

The following factors are important and should be considered carefully in connection with any evaluation of our business, financial condition, results of operations, prospects or an investment in our common stock. The risks and uncertainties described below are those that we currently believe may materially affect our Company or our financial results. Additional risks and uncertainties not presently known to us or that we currently deem immaterial may also impair our business operations or affect our financial results.

Risks Related to Our Industry and Operations

Our business is subject to general economic and business factors that are largely beyond our control, any of which could have a materially adverse effect on our operating results. Our business is dependent on a number of general economic and business factors that may have a materially adverse effect on our results of operations, many of which are beyond our control. These factors include excess capacity in the trucking industry, strikes or other work stoppages, and significant increases or fluctuations in interest rates, fuel taxes, fuel prices and license and registration fees. We are affected by recessionary economic cycles and downturns in customers’ business cycles, particularly in market segments and industries where we have a significant concentration of customers. Economic conditions may adversely affect our customers and their ability to pay for our services.

During 2025, the Trump administration has imposed new and increased tariff rates on imported goods from a number of countries. Although it is difficult to forecast the depth and duration of the resulting impact since the tariff policies have rapidly evolved and changed, such trade policies and tariff implementations, and any related retaliatory trade policies and tariff implementations by foreign governments, may result in decreased shipping volumes and have an adverse impact on our revenue and results of operations. In addition, the imposition of additional tariffs or quotas or changes to certain trade agreements, or retaliatory trade policies could, among other things, increase the cost of the materials used by our suppliers to produce new revenue equipment, limit the availability of new revenue equipment, or increase the price of fuel. Such cost increases for our revenue equipment suppliers would likely be passed on to us, and to the extent fuel prices increase, we may not be able to fully recover such increases through rate increases or our fuel surcharge programs, either of which could have an adverse effect on our business.

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Lastly, it is not possible to predict the effects of actual or threatened armed conflicts or terrorist attacks, efforts to combat terrorism, military action against any foreign state, heightened security requirements or other related events and the subsequent effects on the economy or on consumer confidence in the United States, or the impact, if any, on our future results of operations.

We operate in a highly competitive and fragmented industry, and numerous competitive factors could impair our ability to maintain our current profitability. We compete with many other truckload carriers that provide temperature-sensitive service and dry freight of varying sizes and, to a lesser extent, with less-than-truckload carriers, railroads and other transportation companies, many of which have more equipment, a wider range of services and greater capital resources than we do or have other competitive advantages. Many of our competitors periodically reduce their freight rates to gain business, especially during times of reduced growth rates in the economy, which may limit our ability to maintain or increase freight rates or maintain significant growth in our business. In addition, many customers reduce the number of carriers they use by selecting so-called “core carriers” as approved service providers or conduct bids from multiple carriers for their shipping needs, and in some instances, we may not be selected as a core carrier or to provide service under such bids.

In addition, the trend toward consolidation in the trucking industry may create other large carriers with greater financial resources and other competitive advantages relating to their size. Competition from freight logistics and brokerage companies may negatively impact our customer relationships and freight rates. Furthermore, economies of scale that may be passed on to smaller carriers by procurement aggregation providers may improve such carriers’ ability to compete with us.

If the growth in our regional operations declines, or if we expand into a market with insufficient economic activity, our results of operations could be adversely affected. We operate regional service centers which are located in a number of cities within the United States. In order to support future growth, these regional operations require the commitment of additional capital, revenue equipment and facilities along with qualified management, drivers and other personnel. Should the growth in our regional operations decline, the results of our operations could be adversely affected. It may become more difficult to identify additional cities that can support service centers, and we may expand into cities where there is insufficient economic activity, reduced capacity for growth or less driver and non-driver personnel to support our operations. We may encounter operating conditions in these new markets that materially differ from our current operations and customer relationships may be difficult to obtain at appropriate freight rates. Also, we may not be able to apply our regional operating strategy successfully in additional cities, and it might take longer than expected or require a more substantial financial commitment than anticipated to establish our operations in the additional cities.

Increased prices and restricted availability of new revenue equipment could cause our financial condition, results of operations and cash flows to suffer. We have experienced higher prices for new tractors and trailers over the past few years, primarily as a result of higher commodity prices and government regulations applicable to newly manufactured tractors and trailers. We expect to continue to pay increased prices for revenue equipment for the foreseeable future. Our business could be harmed if we are unable to continue to obtain an adequate supply of new tractors and trailers or if we are required to pay increased prices for new revenue equipment.

We derive a significant portion of our revenue from our major customers, the loss of one or more of which could have a materially adverse effect on our business. A significant portion of our revenue is generated from our major customers. For 2025, our top 30 customers, based on revenue excluding fuel surcharges, accounted for approximately 71% of our revenue; our top ten customers accounted for approximately 50% of our revenue; our top five customers accounted for approximately 38% of our revenue; our top two customers accounted for approximately 28% of our revenue; and our largest customer accounted for approximately 20% of our revenue. Generally, other than for our Dedicated operations, we enter into one-year contracts with our major customers, the majority of which do not contain any firm obligations to ship with us. We cannot ensure that, upon expiration of existing contracts, these customers will continue to use our services or that, if they do, they will continue at the same levels. Many of our customers periodically solicit bids from multiple carriers for their shipping needs, and this process may depress freight rates or result in loss of business to our competitors. Some of our customers also operate their own private trucking fleets, and they may decide to transport more of their own freight. A reduction in or termination of our services by one or more of our major customers could have a materially adverse effect on our business and operating results.

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Ongoing insurance and claims expenses could significantly affect our earnings. Our future insurance and claims expense might exceed historical levels, which could reduce our earnings. We self-insure for a portion of our claims exposure resulting from workers’ compensation, auto liability, general liability, cargo and property damage claims, as well as employees’ health insurance. We also are responsible for our legal expenses relating to such claims. We reserve currently for anticipated losses and expenses. We periodically evaluate and adjust our claims reserves to reflect our experience. However, ultimate results may differ from our estimates, which could result in losses over our reserved amounts. For a detailed discussion of our self-insurance programs, including self-insurance retention limits, please refer to Note 1 to the consolidated financial statements, included in Part II, Item 8 of this Annual Report.

We maintain insurance with licensed insurance carriers above the amounts for which we self-insure and outside of certain liability tiers for which we retain liability. Although we believe the aggregate insurance limits should be sufficient to cover reasonably expected claims, it is possible that one or more claims could exceed our aggregate coverage limits. Insurance carriers have significantly raised premiums for trucking companies due, in part, to the increase in the number of nuclear verdicts in trucking accident cases. As a result, our insurance and claims expense has increased. If these expenses increase, or if we experience a claim in excess of our coverage limits, or we experience a claim for which coverage is not provided, results of our operations and financial condition could be materially and adversely affected.

If demand declines for our used revenue equipment, it could result in decreased equipment sales, resale values and gains on sales of assets. The market for used revenue equipment is subject to a number of factors, including fluctuations in demand and prices. We do not have any agreements with tractor manufacturers pursuant to which they agree to repurchase our tractors or guarantee a residual value. As such, we are sensitive to changes in used equipment prices and demand, especially with respect to tractors. Reduced demand for used equipment could result in a lower volume of sales or lower sales prices, either of which could negatively affect our gains on sales of assets. We have seen a softening of the used equipment market, which could lead to a lower gain on sale.

We depend on the stability, availability and security of the technology related to our management information and communication systems, which are subject to certain cyber risks and other events beyond our control. We depend upon our management information and communication systems for the efficient operation of our business. Our systems are used for receiving, planning and optimizing loads, communicating with and monitoring our drivers, tractors and trailers, billing customers and financial reporting. In addition, some of our key software has been developed internally by our programmers or by adapting purchased software to our needs and this software may not be easily modified or integrated with other software and systems. Our operations are potentially vulnerable to interruption by natural disasters, power loss, telecommunications failure, terrorist attacks, internet failures, computer viruses, malware, hacking and other events beyond our control. Although we have taken steps to prevent and mitigate service interruptions and data security threats, the operational and security risks associated with information technology systems have increased in recent years because of the complexity of the systems and the sophistication and increasing volume of cyberattacks. We have been subject to cyberattacks, which have yet to have a material impact on our business or results of operations, but this might not always be the case in the future. For example, as previously reported, in October 2021, we detected a cyberattack that accessed and encrypted files utilized by us in the operation of our business. The incident did not have a material impact on our business, operations or financial results. Nonetheless, certain employee data was at risk during the event. Our business could be materially and adversely affected if our management information and communication systems are materially compromised or disrupted by a failure or security breach, or if we are unable to improve, upgrade, integrate or expand our systems as we continue to execute our growth strategy. In addition, there has also been heightened regulatory focus on data protection, and failure to comply with applicable data protection regulations or other data protection standards may expose us to litigation, fines, sanctions or other penalties, which could harm our reputation and adversely impact our business, results of operations and financial condition.

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Fluctuations in the price or availability of fuel may increase our cost of operation, which could materially and adversely affect our profitability. We require large amounts of diesel fuel to operate our tractors and to power the temperature-control units on our trailers. Fuel is one of our largest operating expenses. Fuel prices tend to fluctuate, and prices and availability of all petroleum products are subject to political, economic and market factors that are beyond our control. We depend primarily on fuel surcharges, auxiliary power units for our tractors, terrestrial-based tracking equipment for the temperature-control units on our trailers, volume purchasing arrangements with truck stop chains and bulk purchases of fuel at our terminals to control and recover our fuel expenses. There can be no assurance that we will be able to collect fuel surcharges, enter into volume purchase agreements or execute successful hedges in the future. Additionally, we may encounter decreases in productivity that may offset or eliminate savings from auxiliary power units or terrestrial-based tracking equipment, or we may incur unexpected maintenance or other costs associated with such units. The absence of meaningful fuel price protection through these measures, fluctuations in fuel prices or a shortage of diesel fuel could materially and adversely affect our results of operations.

We may be adversely affected by the physical effects of climate change as well as legal, regulatory or market responses to climate change concerns. Risks associated with climate change are subject to increasing societal, regulatory and political focus. Shifts in weather patterns caused by climate change may lead to an increase in the frequency, severity or duration of certain adverse weather conditions and natural disasters, such as hurricanes, tornadoes, earthquakes, wildfires, droughts, extreme temperatures or flooding, which could cause more significant business interruptions, damage to our revenue equipment and facilities, reduced workforce availability, increased costs, increased liabilities and decreased revenue than what we have experienced in the past from such events. For example, severe sustained heat in multiple regions of the United States during recent years has resulted in increased fuel expense due to decreased engine fuel efficiency and increased idling, along with additional damage and wear on tires. In addition, increased public and political concern over climate change could result in new legal or regulatory requirements designed to mitigate the effects of climate change and greenhouse gas emissions such as carbon dioxide, a by-product of burning fossil fuels such as those used in our tractors and in the refrigeration units on our trailers and formerly on our containers, which could include the adoption of more stringent environmental laws and regulations or stricter enforcement of existing laws and regulations. Due to such increased concerns, there could be an increase in regulation from federal, state and local governments related to our carbon footprint, including with respect to vehicle engine emissions. This increase in regulation could result in increased direct costs, such as taxes, fees, fuel, or capital costs, or changes to our operations in order to comply. There is also a focus from regulators and our customers on sustainability issues. This focus may result in new legislation or customer requirements, such as limits on vehicle weight and size or energy source. In October 2023, the State of California passed the Climate Corporate Data Accountability Act and the Climate-Related Financial Risk Act that will impose broad climate-related disclosure obligations on certain companies doing business in California, including us. Following legal challenges and due to a high volume of public comments, the California Air Resources Board, has delayed issuing draft regulations pursuant to these laws until the first quarter of 2026. Additionally, on March 6, 2024, the SEC adopted climate-related disclosure rules which became the subject of a number of legal challenges. On March 27, 2025 the SEC voted to end its defense of the proposed rules, though the rules have not been formally withdrawn. While we are continuing to monitor the evolution of these rules, it is difficult to predict when and to what extent they may impact us. Costs associated with future climate change concerns or environmental laws and regulations and sustainability requirements could have a material adverse effect on our operations and operating results.

Seasonality and the impact of weather can affect our profitability. Our tractor productivity generally decreases during the winter season because inclement weather impedes operations and some shippers reduce their shipments. At the same time, operating expenses generally increase, with harsh weather creating higher accident frequency, increased claims and more equipment repairs. We can also suffer short-term impacts from weather-related events such as hurricanes, blizzards, ice-storms and floods that could harm our results or make our results more volatile.

We are subject to risks associated with public health crises, such as pandemics and epidemics, which could negatively impact our business and results of operations. Our operations are subject to risks related to pandemics, epidemics or other infectious disease outbreaks and government responses thereto. The COVID-19 pandemic, for example, negatively affected economic conditions, supply chains, labor markets and demand for certain shipped goods.

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The extent to which our business, results of operations and financial condition may be negatively affected by pandemics, epidemics or other outbreaks of infectious diseases is highly uncertain and will depend on numerous evolving factors that we cannot predict, including, but not limited to (i) the duration and severity of the infectious disease outbreak; (ii) the imposition of restrictive measures to combat the outbreak and slow disease transmission; (iii) the introduction of financial support measures to reduce the impact of the outbreak on the economy; (iv) volatility in the demand for and price of oil and gas; (v) shortages or reductions in the supply of essential goods, services or labor; and (vi) fluctuations in general economic or financial conditions tied to the outbreak, such as a sharp increase in interest rates or reduction in the availability of credit. We cannot predict the effect that an outbreak of any future infectious disease outbreak, pandemic or epidemic may have on our business, results of operations and financial condition, which could be material and adverse.

The conflict between Russia and Ukraine, conflicts in the Middle East, potential conflict between China and Taiwan and the expansion of such conflicts to other areas or countries or similar conflicts could adversely impact our business and financial results. Although we do not have any operations outside of North America, we may be affected by the broader consequences of the ongoing international conflicts or expansion of such conflicts to other areas or countries or similar conflicts elsewhere, such as, increased inflation, supply chain issues, including access to parts for our revenue equipment, embargoes, geopolitical shift, access to diesel fuel, higher energy prices, potential retaliatory action by the Russian or other governments and the extent of the conflict’s effect on the global economy. The magnitude of these risks cannot be predicted, including the extent to which these conflicts may heighten other risks disclosed herein. Any of the above-mentioned factors could materially adversely affect our business and financial results.

Risks Related to Our Capital Requirements and Financing

We have significant ongoing capital requirements that could harm our financial condition, results of operations and cash flows if we are unable to generate sufficient cash from our operations. The truckload industry is capital intensive, and our policy of operating newer equipment requires us to expend significant amounts annually. If we elect to expand our fleet in future periods, our capital needs would increase. We expect to pay for projected capital expenditures with cash flows from operations and borrowings under our revolving credit facility. Significant increases or fluctuations in interest rates could have a materially adverse effect on such borrowings and our operating results. If we are unable to generate sufficient cash from operations and obtain financing on favorable terms in the future, we may have to limit our growth, enter into less favorable financing arrangements, or operate our revenue equipment for longer periods, any of which could have a materially adverse effect on our profitability.

Instability of the credit markets and the resulting effects on the economy could have a material adverse effect on our operating results. If the credit markets and the economy weaken, our business, financial results and results of operations could be materially and adversely affected, especially if consumer confidence declines and domestic spending decreases. We may need to incur indebtedness, which may include drawing on our credit facility, or issue debt securities in the future to fund working capital requirements, make investments or for general corporate purposes. Additionally, stresses in the credit market causes uncertainty in the equity markets, which may result in volatility of the market price for our securities.

Risks Related to Regulation of Our Operations

We operate in a highly regulated industry and increased costs of compliance with, or liability for violation of, existing or future regulations could have a materially adverse effect on our business. The DOT and various state and local agencies exercise broad powers over our business, generally governing such activities as authorization to engage in motor carrier operations, safety and insurance requirements. Our company drivers and independent contractors also must comply with the safety and fitness regulations promulgated by the DOT, including those relating to drug and alcohol testing, medical and continuous training qualification and hours-of-service. We also may become subject to new or more restrictive regulations relating to vehicle emissions, ergonomics or other matters affecting safety or operating methods. Other agencies, such as the United States Environmental Protection Agency, or EPA, and the United States Department of Homeland Security, or DHS, also regulate our equipment, operations and drivers. Future laws and regulations may be more stringent and require changes in our operating practices, influence the demand for transportation services or require us to incur significant additional costs. Higher costs incurred by us or by our suppliers who pass the costs onto us through higher prices could adversely affect our results of operations.

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The DOT, through the Federal Motor Carrier Safety Administration, or FMCSA, imposes safety and fitness regulations on us and our drivers. In December 2010, the FMCSA introduced the Compliance, Safety, Accountability, or CSA, system to measure and evaluate the on-road safety performance of commercial carriers and individual drivers. CSA’s Motor Carrier Safety Measurement System replaced the former SafeStat system and has removed a number of drivers from the industry as carriers are less willing to hire and retain drivers with marginal ratings, which has increased competition for qualified drivers. The FMCSA is currently putting in place changes to generally simplify the agency’s safety and fitness regulations using an enhanced safety prioritization methodology.

The FMCSA issued final revisions to the hours-of-service requirements for drivers in September 2020. The revisions allow drivers more flexibility with their 30-minute rest breaks and with dividing their time in the sleeper berth. Additionally, the new regulations increase by two hours the duty time for drivers encountering adverse weather and expand the short haul exemption radius from 100 to 150 miles.

In January 2011, the FMCSA issued a regulatory proposal requiring commercial carriers to track compliance with hours-of-service regulations using electronic logging devices, or ELD’s, which was vacated and sent back to the FMCSA for further analysis and review in September 2011 by the 7th U.S. Circuit Court of Appeals. The Moving Ahead for Progress in the 21st Century Act, or MAP-21 Act, included a provision directing the FMCSA to develop a final ELD rule in 2013, which was delayed until its issuance in December 2015. The final rule required compliance beginning in December 2017 which was strictly enforced beginning in April 2018. Carriers using automatic on-board recording devices, or AOBRD’s, which were installed and in use prior to December 2017 were allowed until December 2019 to convert to ELD’s. Our entire fleet was equipped with AOBRD’s since early 2011 and converted to ELD’s prior to December 2019.

The FMCSA has established a Commercial Driver’s License Drug and Alcohol Clearinghouse, which is a database of drivers who have violations including failed or refused drug and alcohol tests. Beginning in January 2020, all carriers are required to run queries in the clearinghouse for all prospective drivers and annually for all drivers currently employed. All testing violations must also be reported to the clearinghouse. Additionally, effective November 2024, all states are required to check the clearinghouse for any prohibitions before issuing, renewing, transferring or upgrading any commercial drivers’ licenses. Also effective in January 2020, all carriers must perform random drug tests at a rate of at least 50% of the average number of driver positions. The rate was at least 25% previously. We have been testing at a rate in excess of 50%, including when the requirement was at least 25%, and tested 67% in 2023, 74% in 2024 and 76% in 2025. The impact of the clearinghouse has been significant, with a total of approximately 202,000 drivers removed from the trucking industry from January 2020 through December 2025.

Additionally, the Trump administration’s recent immigration enforcement efforts including stricter standards for non-domiciled commercial driver’s licenses and entry-level driver training programs, along with increased enforcement of English Language Proficiency and B-1 visa regulations, are expected to decrease industry capacity.

From time to time, various federal, state or local taxes are increased, including taxes on fuels. We cannot predict whether, or in what form, any such increase applicable to us will be enacted, but such an increase could adversely affect our profitability.

Our operations are subject to various environmental laws and regulations, the violation of which could result in substantial fines or penalties. We are subject to various environmental laws and regulations dealing with vehicle emissions and idling, the handling of hazardous materials, fuel storage tanks, air emissions from our facilities and discharge and retention of storm water. We operate in industrial areas, where truck terminals and other industrial activities are located, and where groundwater or other forms of environmental contamination have occurred. Our operations involve the risks of fuel spillage or seepage, environmental damage and hazardous waste disposal, among others. Although we have instituted programs to monitor and control environmental risks and promote compliance with applicable environmental laws and regulations, if we are involved in a spill or other accident involving hazardous substances, or if we are found to be in violation of applicable laws or regulations, we could be subject to liabilities, including substantial fines or penalties or civil and criminal liability, any of which could have a materially adverse effect on our business and operating results.

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Our business is subject to the risk of litigation, which may adversely affect our business and operating results. We are subject to litigation resulting from trucking accidents. These lawsuits have resulted, and may result in the future, in the payment of substantial settlements or damages and could impact our insurance costs. In particular, the trucking industry has seen a trend of nuclear verdicts, resulting in the payment of substantial damages for claims related to trucking accidents. Additionally, a number of trucking companies, including us, have been subject to lawsuits, including class action lawsuits, alleging violations of various federal and state wage and hour laws. A number of these lawsuits have resulted in the payment of substantial settlements or damages by the defendants.

The outcome of litigation, particularly class action lawsuits, is difficult to assess or quantify, and the magnitude of the potential loss relating to such lawsuits may remain unknown for substantial periods of time. The cost to defend litigation may also be significant. Not all claims are covered by our insurance, and there can be no assurance that our coverage limits will be adequate to cover all amounts in dispute. To the extent we experience claims that are uninsured, exceed our coverage limits, involve significant aggregate use of our self-insured retention amounts or cause increases in future premiums, the resulting expense could have a materially adverse effect on our business and operating results.

Risks Related to Our Human Capital

Increases in compensation or difficulty in attracting drivers could affect our profitability and ability to grow. The transportation industry has historically experienced substantial difficulty in attracting and retaining qualified drivers, including independent contractors. With the current increased competition for drivers, including the impact that regulatory changes have had on the number of drivers in the transportation industry, we could experience greater difficulty in attracting sufficient numbers of qualified drivers. In addition, the available pool of independent contractor drivers is smaller than it has been historically. Accordingly, we may face difficulty in attracting and retaining drivers for all of our current tractors and for those we may add. Additionally, we may face difficulty in increasing the number of our independent contractor drivers. In addition, our industry suffers from high turnover rates of drivers. Our turnover rate requires us to recruit a substantial number of drivers. Moreover, our turnover rate could increase. If we are unable to continue to attract drivers and contract with independent contractors, we could be required to continue adjusting our driver compensation package or let trucks sit idle. An increase in our expenses or in the number of tractors without drivers could materially and adversely affect our growth and profitability.

If we are unable to retain our executive officers and key management employees, our business, financial condition and results of operations could be adversely affected. We are highly dependent upon the services of our executive officers and key management employees, including our Chairman of the Board and Chief Executive Officer. Currently, we do not have employment agreements with these employees and the loss of their services for any reason could have a materially adverse effect on our operations and future profitability. We have entered into agreements with our executive officers that require us to provide compensation to them in the event of termination of their employment without cause in connection with or within a certain period of time after a “change in control” of our Company. In addition, we must continue to develop and retain a core group of managers if we are to realize our goal of expanding our operations and continuing our growth. While our Board regularly engages in succession planning for our Chairman of the Board and Chief Executive Officer and executive leadership team, there is no guarantee that a candidate or plan will be successful. Although we strive to reduce the potential negative impact of any such changes, the loss of any executive officers or key management employees could result in disruptions to our operations. In addition, hiring, training and successfully integrating replacement personnel, whether internal or external, could be time consuming, may cause additional disruptions to our operations and may be unsuccessful, which could negatively impact our business, financial condition and results of operations.