X0306 4 2022-12-31 0 0001046102 RITCHIE BROS AUCTIONEERS INC RBA 0001588767 THIEDE CARMEN D 9500 GLENLYON PARKWAY BURNABY A1 V5J 0C6 BRITISH COLUMBIA, CANADA 0 1 0 0 CTO and People Officer Common Shares 2022-12-31 4 J 0 438 60.97 A 1019 I Employee Stock Purchase Plan This report is being filed voluntarily to reflect ESPP shares purchased from January 21, 2022 through December 31, 2022 in multiple transactions exempted by Rule 16b-3(c). The price reported in Column 4 is a weighted average price. The shares were acquired in multiple transactions from January 21, 2022 through December 31, 2022, at prices ranging from $60.97 to $60.97, inclusive. The reporting person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares acquired at each separate price within the ranges set forth above. /s/ Maria Teresa Punsalan as attorney-in-fact for Carmen D Thiede. 2023-01-11