Business Description

Overview We have strategically transitioned from a refrigerated long-haul carrier to a multifaceted business offering a network of time and temperature-sensitive and dry truck-based transportation and distribution capabilities across our current five distinct business platforms – Temperature-Sensitive and Dry Truckload, Dedicated, Brokerage and MRTN de Mexico. Our Intermodal operations were sold effective September 30, 2025. We are one of the leading temperature-sensitive truckload carriers in the United States, specializing in transporting and distributing food and other consumer packaged goods that require a temperature-controlled or insulated environment. In 2025, we generated $883.7 million in operating revenue. Approximately 59% of our Truckload and Dedicated revenue in 2025 resulted from hauling temperature-sensitive products and 41% from hauling dry freight. We operate throughout the United States and in parts of Mexico and Canada, with our revenue primarily generated from within the United States. We provide regional truckload carrier services in the Southeast, West Coast, Midwest, South Central and Northeast regions. Our primary medium-to-long-haul traffic lanes are between the Midwest and the West Coast, Southwest, Southeast, and the East Coast, as well as from California to the Pacific Northwest. In 2025, our average length of haul was 405 miles. Our growth strategy is to expand our business organically by offering shippers a high level of service and significant freight capacity. We market primarily to shippers that offer consistent volumes of freight in the lanes we prefer and are willing to compensate us for a high level of service. With our fleet of 2,654 company and independent contractor tractors, we offer service levels that include up to 99% on-time performance and delivery within the narrow time windows often required when shipping perishable commodities. We have four reporting segments – Truckload, Dedicated and Brokerage, along with our Intermodal operations which were sold effective September 30, 2025. Financial information regarding these segments can be found in Footnote 14 to the Notes to Consolidated Financial Statements under Item 8 of this Form 10-K. Our Truckload segment provides a combination of regional short-haul and medium-to-long-haul full-load transportation services. We transport food and other consumer packaged goods that require a temperature-controlled or insulated environment, along with dry freight, across the United States and into and out of Mexico and Canada. Our agreements with customers are typically for one year. Our Dedicated segment provides customized transportation solutions tailored to meet each individual customer’s requirements, utilizing temperature-controlled trailers, dry vans and other specialized equipment within the United States. Our agreements with customers range from three to five years and are subject to annual rate reviews. 1 Our Brokerage segment develops contractual relationships with and arranges for third-party carriers to transport freight for our customers in temperature-controlled trailers and dry vans within the United States and into and out of Mexico through Marten Transport Logistics, LLC, which was established in 2007 and operates pursuant to brokerage authority granted by the United States Department of Transportation, or DOT. We retain the billing, collection and customer management responsibilities. Operating results of our MRTN de Mexico business, which offers our customers door-to-door service between the United States and Mexico with our Mexican partner carriers, is reported within our Truckload and Brokerage segments. Our Intermodal segment transported our customers’ freight within the United States utilizing our refrigerated containers on railroad flatcars for portions of trips, with the balance of the trips using our tractors or, to a lesser extent, contracted carriers. Our Intermodal operations were sold effective September 30, 2025. Organized under Wisconsin law in 1970, we are a successor to a sole proprietorship Roger R. Marten founded in 1946. In 1988, we reincorporated under Delaware law. Our executive offices are located at 129 Marten Street, Mondovi, Wisconsin 54755. Our telephone number is (715) 926-4216. We maintain a website at www.marten.com . We are not including the information contained on our website as a part of, nor incorporating it by reference into, this Annual Report on Form 10-K.…