Statement of Changes in Beneficial Ownership (4)

FORM 4 [ X ] 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	OMB APPROVAL OMB Number: 3235-0287 Estimated average burden hours per response... 0.5
	Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934 or Section 30(h) of the Investment Company Act of 1940

1. Name and Address of Reporting Person * Vaughan Christina D	2. Issuer Name and Ticker or Trading Symbol SONIC CORP [ SONC ]	5. Relationship of Reporting Person(s) to Issuer (Check all applicable) _____ Director                      _____ 10% Owner __ X __ Officer (give title below)      _____ Other (specify below) President of subsidiary
(Last)          (First)          (Middle) 300 JOHNNY BENCH DRIVE	3. Date of Earliest Transaction (MM/DD/YYYY) 12/7/2018
(Street) OKLAHOMA CITY, OK 73104 (City)        (State)        (Zip)	4. If Amendment, Date Original Filed (MM/DD/YYYY)	6. Individual or Joint/Group Filing (Check Applicable Line) _ X _ Form filed by One Reporting Person ___ Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1.Title of Security (Instr. 3)	2. Trans. Date	2A. Deemed Execution Date, if any	3. Trans. 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

Table II - Derivative Securities Beneficially Owned ( e.g. , puts, calls, warrants, options, convertible securities)
1. Title of Derivate Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Trans. Date	3A. Deemed Execution Date, if any	4. Trans. 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		7. Title and Amount of Securities Underlying Derivative Security (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
Incentive Stock Option (right to buy)	$11.07	12/7/2018		D   (1)			7296	(3)	1/16/2020	common stock	7296	$43.50	0	D
Incentive Stock Option (right to buy)	$20.58	12/7/2018		D   (1)			3999	(3)	1/16/2021	common stock	3999	$43.50	0	D
Stock Option (right to buy)   (2)	$31.29	12/7/2018		D   (1)			3444	(3)	1/29/2022	common stock	3444	$43.50	0	D
Stock Option (right to buy)   (2)	$29.37	12/7/2018		D   (1)			4230	(3)	1/28/2023	common stock	4230	$43.50	0	D
Stock Option (right to buy)   (2)	$25.4	12/7/2018		D   (1)			20803	(3)	1/19/2024	common stock	20803	$43.50	0	D
Stock Option (right to buy)   (2)	$25.84	12/7/2018		D   (1)			22005	(3)	1/31/2025	common stock	22005	$43.50	0	D

Explanation of Responses:
(1)	Disposed of as a result of the merger pursuant to the previously announced Agreement and Plan of Merger, dated September 24, 2018, by and among the issuer, Inspire Brands, Inc. and SSK Merger Sub, Inc.
(2)	Previously, ISOs and NQs were reported as separate awards but are combined in this final Form 4 into one award by issue date.
(3)	Fully vested.

Reporting Owners
Reporting Owner Name / Address	Relationships
	Director	10% Owner	Officer	Other
Vaughan Christina D 300 JOHNNY BENCH DRIVE OKLAHOMA CITY, OK 73104			President of subsidiary

Signatures
Carolyn C. Cummins for Christina D. Vaughan		12/7/2018
** Signature of Reporting Person		Date

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
*	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).
Note:	File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
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