Marten Transport, Ltd. announced that its Board of Directors has appointed Douglas P. Petit as its new President, effective Aug. 30, 2021. Doug Petit will succeed Tim Kohl, who has served as the Company’s President since 2008. Tim Kohl was recently appointed as Chief Executive Officer on May 4, 2021. Mr. Petit has been Marten’s Chief Operating Officer since August 2019 and served as the Company’s Senior Vice President of Operations from January 2014 through August 2019 and Vice President of Operations from December 2011 through January 2014.