X0306 4 2018-05-09 0 0001492691 Knight-Swift Transportation Holdings Inc. KNX 0001506972 Runnels Kenneth C 20002 NORTH 19TH AVENUE PHOENIX AZ 85027 0 1 0 0 EVP Fleet Operations Restricted Stock Units 2018-05-09 4 A 0 5121 0 A Class A Common Stock 5121 5121 D Each restricted stock unit represents a contingent right to receive one share of KNX Class A Common Stock. The restricted stock units vest in five equal annual installments on May 31 of each year, commencing on May 31, 2019 and ending on May 31, 2023. Stock is issued when and as vested. /s/ Jessica Benford, Attorney-in-Fact 2018-05-10