FORM 4 Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940

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1. Name and Address of Reporting Person * Driscoll Sharon Ruth   2. Issuer Name and Ticker or Trading Symbol RITCHIE BROS AUCTIONEERS INC [RBA] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) _____ Director _____ 10% Owner __X__ Officer (give title below) _____ Other (specify below) Chief Financial Officer (Last) (First) (Middle) C/O RITCHIE BROS. AUCTIONEERS INC., 9500 GLENLYON PARKWAY 3. Date of Earliest Transaction (Month/Day/Year) 08/11/2017 (Street) BURNABY, A1 V5J 0C6 4. If Amendment, Date Original Filed(Month/Day/Year) 6. Individual or Joint/Group Filing(Check Applicable Line) _X_ Form filed by One Reporting Person ___ Form filed by More than One Reporting Person (City) (State) (Zip) Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned

1.Title of Security (Instr. 3) 2. Transaction Date (Month/Day/Year) 2A. Deemed Execution Date, if any (Month/Day/Year) 3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4) Code V Amount (A) or (D) Price Common Shares 08/11/2017   M   913 A (1) 913 D   Common Shares 08/11/2017   M   40 A (1) 953 D   Common Shares 08/11/2017   D   953 D $ 28.22 0 D   Common Shares               1,565 (2) I Employee Stock Purchase Plan

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Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)

1. Title of Derivative Security (Instr. 3)

2. Conversion or Exercise Price of Derivative Security

3. Transaction Date (Month/Day/Year)

3A. Deemed Execution Date, if any (Month/Day/Year)

4. Transaction Code (Instr. 8)

5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4, and 5)

6. Date Exercisable and Expiration Date (Month/Day/Year)

7. Title and Amount of Underlying Securities (Instr. 3 and 4)

8. Price of Derivative Security (Instr. 5)

9. Number of Derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)

10. Ownership Form of Derivative Security: Direct (D) or Indirect (I) (Instr. 4)

11. Nature of Indirect Beneficial Ownership (Instr. 4)

Code

V

(A)

(D)

Date Exercisable

Expiration Date

Title

Amount or Number of Shares

2015 DER RSU

(3)

08/11/2017

A

20

(4)

(4)

Common Shares

20 (3)

$ 0

42

D

2015 RSU

(1)

08/11/2017

M

913

(1)

(1)

Common Shares

913

$ 0

912

D

2015 DER RSU

(1)

08/11/2017

M

40

(1)

(1)

Common Shares

40

$ 0

22

D

Reporting Owners

Reporting Owner Name / Address	Relationships
	Director	10% Owner	Officer	Other
Driscoll Sharon Ruth C/O RITCHIE BROS. AUCTIONEERS INC. 9500 GLENLYON PARKWAY BURNABY, A1 V5J 0C6			Chief Financial Officer

Signatures

Maria Teresa Punsalan as attorney-in-fact for Sharon Ruth Driscoll		08/14/2017
**Signature of Reporting Person		Date

Explanation of Responses:

*	If the form is filed by more than one reporting person, see Instruction 4(b)(v).
**	Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
(1)	Each RSU and dividend equivalent right ("DER") represented a contingent right to receive the economic equivalent of one RBA common share. The RSUs and DERs vested on 8/11/2017. As determined by the Compensation Committee, the cash value of the common shares underlying the vested RSUs and DERs (determined in accordance with the RBA Restricted Share Unit Plan) will be paid to the reporting person, net of applicable tax, as soon as practicable following the end of the month in which the RSUs and DERs vested.
(2)	Includes all Employee Stock Purchase Plan purchases through August 11, 2017.
(3)	DER (2015 RSU) have accrued since December 19, 2017 filing
(4)	Each dividend equivalent right ("DER")represents a contingent right to receive the economic equivalent of one RBA common share. The dividend equivalent rights accrued in respect of one grant of restricted share units, and become exercisable proportionately with the restricted share units to which they relate.

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