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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(Print or Type Responses)

1. Name and Address of Reporting Person * POLAK REBECCA C.   2. Issuer Name and Ticker or Trading Symbol KAR Auction Services, Inc. [KAR] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) _____ Director _____ 10% Owner __X__ Officer (give title below) _____ Other (specify below) CLO & Sec.; Pres. TradeRev (Last) (First) (Middle) C/O: KAR AUCTION SERVICES, INC., 13085 HAMILTON CROSSING BLVD. 3. Date of Earliest Transaction (Month/Day/Year) 02/22/2019 (Street) CARMEL, IN 46032 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 Stock 02/22/2019   M   1,107 A $ 0 (1) 56,253.2336 D   Common Stock 02/22/2019   F(2)   494 D $ 47.06 55,759.2336 D   Common Stock 02/24/2019   M   1,519 A $ 0 (3) 57,278.2336 D   Common Stock 02/24/2019   F(2)   678 D $ 47.06 56,600.2336 D

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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
Employee Stock Option (right to buy)	$ 30.89							(4)	02/27/2024	Common Stock	34,996		34,996	D
Restricted Stock Units	(5)	02/22/2019		M			1,107	(6)	(6)	Common Stock	1,107	$ 0	0	D
Restricted Stock Units	(5)	02/24/2019		M			1,519	(7)	(7)	Common Stock	1,519	$ 0	1,520	D
Restricted Stock Units	(5)							(8)	(8)	Common Stock	4,164		4,164	D
Restricted Stock Units	(5)	02/22/2019		A		4,788		(9)	(9)	Common Stock	4,788	$ 0	4,788	D

Reporting Owners

Reporting Owner Name / Address	Relationships
	Director	10% Owner	Officer	Other
POLAK REBECCA C. C/O: KAR AUCTION SERVICES, INC. 13085 HAMILTON CROSSING BLVD. CARMEL, IN 46032			CLO & Sec.; Pres. TradeRev

Signatures

Rebecca C. Polak		02/26/2019
**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 restricted stock unit is convertible into a share of common stock on a 1-for-1 basis. The restricted stock units vested in common stock on February 22, 2019.
(2)	Shares withheld by the Company to satisfy tax withholding requirements.
(3)	Each restricted stock unit is convertible into a share of common stock on a 1-for-1 basis. The restricted stock units vested in common stock on February 24, 2019.
(4)	All of these options are currently exercisable.
(5)	Each restricted stock unit is convertible into a share of common stock on a 1-for-1 basis.
(6)	These restricted stock units were subject to a time-vesting requirement and vested and settled in common stock as follows: one-third of these restricted stock units vested on February 23, 2017, one-third of these restricted stock units vested on February 22, 2018 and the remaining one-third of these restricted stock units vested on February 22, 2019.
(7)	These restricted stock units remain subject to a time-vesting requirement and are scheduled to vest and settle in common stock as follows: one-third of these restricted stock units vested on February 24, 2018, one-third of these restricted stock units vested on February 24, 2019 and the remaining one-third of these restricted stock units vest on February 24, 2020, assuming continued employment through the applicable vesting date.
(8)	These restricted stock units remain subject to a time-vesting requirement and are scheduled to vest and settle in common stock as follows: one-third of these restricted stock units vest on March 2, 2019, one-third of these restricted stock units vest on March 2, 2020 and the remaining one-third of these restricted stock units vest on March 2, 2021, assuming continued employment through the applicable vesting date.
(9)	These restricted stock units remain subject to a time-vesting requirement and are scheduled to vest and settle in common stock as follows: one-third of these restricted stock units vest on February 22, 2020, one-third of these restricted stock units vest on February 22, 2021 and the remaining one-third of these restricted stock units vest on February 22, 2022, assuming continued employment through the applicable vesting date.

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