X0306 4 2021-07-31 0 0001492691 Knight-Swift Transportation Holdings Inc. KNX 0001875999 Prickett Wilburn Douglas III 2002 WEST WAHALLA LANE PHOENIX AZ 85027 0 1 0 0 Pres/COO-AAA Cooper Trans. Restricted Stock Units 2021-07-31 4 A 0 3018 0 A Class A Common Stock 3018 3018 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 installments on July 31 of each year, commencing on July 31, 2022 and ending on July 31, 2026. Stock is issued when and as vested. /s/ Jessica A. Powell, Attorney in Fact 2021-08-02