MARTEN TRANSPORT LTD

Our executive officers, with their ages and the offices held as of February 14, 2025, are as follows:

Randolph L. Marten has been a full-time employee of ours since 1974. Mr. Marten has been a Director since October 1980 and our Executive Chairman of the Board since May 2021. Mr. Marten also served as our Chairman of the Board from August 1993 to May 2021, our Chief Executive Officer from January 2005 to May 2021, our President from June 1986 to June 2008, our Chief Operating Officer from June 1986 to August 1998 and as a Vice President from October 1980 to June 1986.

Timothy M. Kohl has been our Chief Executive Officer since May 2021. Mr. Kohl also served as our President from June 2008 to August 2021 after joining the Company in November 2007. Mr. Kohl served as Knight Transportation Inc.’s President from 2004 to 2007 and as its Secretary from 2000 to 2007. Mr. Kohl served as a director on Knight’s Board of Directors from 2001 to 2006, and he served as its Chief Financial Officer from 2000 to 2004. Mr. Kohl also served as Knight’s Vice President of Human Resources from 1996 to 1999. From 1999 to 2000, Mr. Kohl served as Vice President of Knight’s southeast region. Prior to his employment with Knight, Mr. Kohl was employed by Burlington Motor Carriers as a Vice President. Prior to his employment with Burlington Motor Carriers, Mr. Kohl served as a Vice President for J.B. Hunt.

Douglas P. Petit has been our President since August 2021. Mr. Petit also served as our Chief Operating Officer from August 2019 to August 2021, our Senior Vice President of Operations from January 2014 to August 2019 and our Vice President of Operations from December 2011 to January 2014. Mr. Petit advanced through various professional capacities in our operations area from June 1992 to December 2011 and from February 1990 to June 1991. From June 1991 to June 1992, Mr. Petit served as a fleet manager for Transport America, Inc.

James J. Hinnendael has been our Executive Vice President since May 2015 and our Chief Financial Officer since January 2006, and served as our Controller from January 1992 to December 2005. Mr. Hinnendael served in various professional capacities with Ernst & Young LLP, a public accounting firm, from January 1987 to December 1991. Mr. Hinnendael is a certified public accountant.

Adam D Phillips has been our Executive Vice President and Chief Operating Officer since December 2023. Mr. Phillips also served as our Chief Operating Officer from March 2023 to December 2023, our President of Western Operations and MRTN de Mexico from August 2019 to March 2023, our Vice President of Regional and Mexico Operations from January 2014 to August 2019, our Senior Director of Regional Operations from April 2010 to January 2014 and our Director of Regional Operations from January 2008 to April 2010. Mr. Phillips served in various operational and management capacities for Knight Transportation Inc. from 2001 to 2008.

Randall J. Baier has been our Executive Vice President and Chief Technology Officer since August 2023. Mr. Baier also served as our Senior Vice President of Information Systems from December 2019 to August 2023, our Vice President of Information Systems from January 2014 to December 2019 and our Senior Director of Information Systems from April 2011 to January 2014. Mr. Baier advanced through various professional capacities in our information technology area including Developer, System Administrator and Database Administrator from April 1993 to April 2011.

Part II