On August 17, 2021, Marten Transport, Ltd. entered into an Eleventh Amendment to Credit Agreement (the Amendment") with U.S. Bank National Association, as agent (the Agent"), and certain lenders party thereto (collectively, the Lenders"). The Amendment amends that certain Credit Agreement, dated as of August 31, 2006, entered into by and among Marten, the Agent, and the Lenders (the Original Agreement"), as modified by amendments dated as of January 1, 2007, November 30, 2007, May 27, 2011, December 10, 2012, December 22, 2014, November 4, 2015, December 6, 2016, August 24, 2018, August 13, 2019 and November 18, 2020 (collectively, the Prior Amendments" and, together with the Original Agreement, the Current Credit Agreement"). Marten previously filed copies of the Original Agreement and the Prior Amendments with the Securities and Exchange Commission. The Amendment waives the limitations of certain restrictive payments under the Current Credit Agreement through December 31, 2021 to allow for stock redemptions and dividends in excess of 25% of Marten's total consolidated net income for its most recent prior fiscal year in a total amount of up to $80,000,000. The obligations arising under the revolving credit facility continue to be guaranteed by each of Marten's existing subsidiaries.