OLD DOMINION FREIGHT LINE, INC.

B USINESS Unless the context requires otherwise, references in this report to Old Dominion, the Company, we, us and our refer to Old Dominion Freight Line, Inc. Overview We are one of the largest North American less-than-truckload ( LTL ) motor carriers. We provide regional, inter-regional and national LTL services through a single integrated, union-free organization. Our service offerings, which include expedited transportation, are provided through an expansive network of service centers located throughout the continental United States. Through strategic alliances, we also provide LTL services throughout North America. In addition to our core LTL services, we offer a range of value-added services including container drayage, truckload brokerage and supply chain consulting. More than 98% of our revenue has historically been derived from transporting LTL shipments for our customers, whose demand for our services is generally tied to industrial production and the overall health of the U.S. domestic economy. We have increased our revenue and customer base over the past ten years primarily through organic market share growth. Our infrastructure allows us to provide service through each of our regions covering the continental United States. In addition to numerous service center renovations, expansions, and existing service center relocations, we opened a net 16 and 35 service centers over the past five and ten years, respectively, for a total of 260 service centers at December 31, 2025.