Knight Transportation Appoints CFO and COO

Knight Transportation, Inc.

announced additions to its senior management team. David A. Jackson has been appointed President and continues to serve as Chief Financial Officer. Mr. Jackson has served as Chief Financial Officer since January 2004 and also has served as Treasurer from May 2006 to February 2011 and Secretary from November 2007 to February 2011. Prior to his appointment as the Chief Financial Officer, Mr. Jackson served in several positions at Knight between 2000 and 2004. Mr. Jackson graduated from Arizona State University with a degree in global business with a specialization in finance. Kevin Quast has been appointed Executive Vice President and Chief Operations Officer. Mr. Quast most recently served as the Business Unit Leader for the Southeast. He previously served in several senior sales and operations positions in the Southeast region since 2001 and in other operating departments since 1996. Mr. Quast graduated from Brigham Young University with majors in Mandarin Chinese and Asian studies.