X0306 4 2017-09-08 0 0001492691 Knight-Swift Transportation Holdings Inc. KNX 0001420036 Carlson Todd F. 20002 NORTH 19TH AVENUE PHOENIX AZ 85027 0 0 0 1 General Counsel and Secretary Class A Common Stock 2017-09-08 4 A 0 20638 A 20638 D Acquired pursuant to an Agreement and Plan of Merger dated April 9, 2017, among the issuer, Bishop Merger Sub, Inc., and Knight Transportation, Inc., providing that issuer would issue to each shareholder of Knight Transportation, Inc. the number of issuer's shares equal to the number of shares of Knight Transportation, Inc. held by the shareholder. Each acquired share's market value is $40.85. /s/ Jessica Benford, Attorney-in-Fact 2017-09-12