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 * Lavelle Kate S   2. Issuer Name and Ticker or Trading Symbol SONIC CORP [SONC] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) __X__ Director _____ 10% Owner _____ Officer (give title below) _____ Other (specify below) (Last) (First) (Middle) 300 JOHNNY BENCH DRIVE 3. Date of Earliest Transaction (Month/Day/Year) 11/05/2018 (Street) OKLAHOMA CITY, OK 73104 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 11/05/2018   G V 2,083 D $ 0 14,648 I By trust Common Stock 12/07/2018   D(1)   14,648 D $ 43.5 0 I By trust

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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

Restricted Stock UInits

$ 0

12/07/2018

D(1)

2,032

(1)

(1)

Common Stock

2,032

$ 43.5

0

D

Nonqualified stock options (right to buy)

$ 31.29

12/07/2018

D(1)

4,780

(1)

01/29/2022

Common Stock

4,780

$ 43.5

0

D

Nonqualified stock options (right to buy)

$ 29.37

12/07/2018

D(1)

5,136

(1)

01/28/2023

Common Stock

5,136

$ 43.5

0

D

Nonqualified stock options (right to buy)

$ 25.4

12/07/2018

D(1)

6,675

(1)

01/19/2024

Common Stock

6,675

$ 43.5

0

D

Nonqualified stock options (right to buy)

$ 25.84

12/07/2018

D(1)

8,237

(1)

01/31/2025

Common Stock

8,237

$ 43.5

0

D

Reporting Owners

Reporting Owner Name / Address	Relationships
	Director	10% Owner	Officer	Other
Lavelle Kate S 300 JOHNNY BENCH DRIVE OKLAHOMA CITY, OK 73104	X

Signatures

Carolyn C. Cummins for Kate S. Lavelle		12/07/2018
**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)	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. (the "Merger Agreement"). At the effective time of the merger as contemplated in the merger agreement, (i) each outstanding share of Company Common Stock, was cancelled and automatically converted into the right to receive $43.50 in cash and (ii) each Company Restricted Stock Unit and each Company Stock Option Award, vested and accelerated in full and was converted into the right to receive $43.50 in cash (or in the case of Company Stock Option Awards, the difference between the exercise price and $43.50).

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