X0306 4 2023-03-15 0 0001046102 RITCHIE BROS AUCTIONEERS INC RBA 0001661695 Watt Darren Jeffrey C/O RITCHIE BROS. AUCTIONEERS INC. 9500 GLENLYON PARKWAY BURNABY A1 V5J 0C6 BRITISH COLUMBIA, CANADA 0 1 0 0 Gen. Counsel & Corp. Secretary Common Shares 2023-03-15 4 F 0 3121 61.84 D 15330 D Tax Withholding on the 2020 PSUs and DERs that vested on March 4, 2023. /s/ Maria Teresa Punsalan as attorney-in-fact for Darren Jeffrey Watt. 2023-03-16