X0306 4 2023-03-04 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 2023-03-04 4 M 0 276 A 12895 D Common Shares 2023-03-04 4 M 0 5556 A 18451 D Common Shares 2229 I Employee Stock Purchase Plan Common Shares 1698 I Long-Term Investment Plan Dividend Equivalent Rights (2020 PSUs) 2023-03-04 4 M 0 276 0.00 D Common Shares 276 0 D Performance Share Units (2020 PSUs) 2023-03-04 4 M 0 5556 0.00 D Common Shares 5556 0 D Represents pre-tax amount of award. Share issuance will be made net of tax withholding ("TW"). Includes the March 3, 2023 accrued PSU dividend equivalent rights. Each PSU and DER represented a contingent right to receive one RBA common share or the economic equivalent thereof. The PSUs and DERs vested on March 4, 2023, the PSUs and DERs will be settled in common shares issued to the reporting person, net applicable tax, as soon as practicable Includes all Employee Stock Purchase Plan purchases through March 2, 2023. /s/ Maria Teresa Punsalan as attorney-in-fact for Darren Jeffrey Watt. 2023-03-06