Sec Form 4 Filing - VAUGHAN STEPHEN C @ SONIC CORP - 2013-04-09

Insider filing report for Changes in Beneficial Ownership
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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
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
VAUGHAN STEPHEN C
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)
Exec. Vice Pres. & CFO
(Last) (First) (Middle)
300 JOHNNY BENCH DRIVE
3. Date of Earliest Transaction (MM/DD/YY)
04/09/2013
(Street)
OKLAHOMA CITY, OK73104
4. If Amendment, Date Original Filed (MM/DD/YY)
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 (MM/DD/YY) 2A. Deemed Execution Date, if any (MM/DD/YY) 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 04/09/2013 M 17,126 A $ 12.09 121,573 ( 1 ) D
Common Stock 04/09/2013 S 16,584 D $ 12.3829 ( 2 ) 104,989 ( 1 ) D
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 (MM/DD/YY) 3A. Deemed Execution Date, if any (MM/DD/YY) 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
(MM/DD/YY)
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
Incentive Stock Option (right to buy) $ 12.09 04/09/2013 M 8,874 04/10/2006 04/10/2013 Common Stock 8,874 $ 0 0 D
Non-qualified stock option (right to buy) $ 12.09 04/09/2013 M 8,252 04/10/2006 04/10/2013 Common Stock 8,252 $ 0 0 D
Reporting Owners
Reporting Owner Name / Address Relationships
Director 10% Owner Officer Other
VAUGHAN STEPHEN C
300 JOHNNY BENCH DRIVE
OKLAHOMA CITY, OK73104
Exec. Vice Pres. & CFO
Signatures
Carolyn C. Cummins for Stephen C. Vaughan 04/11/2013
Signature of Reporting Person Date
Explanation of Responses:
( 1 )The total number of shares beneficially owned directly includes 3,646 shares held in the 1991 Sonic Corp. Stock Purchase Plan as of February 28, 2013.
( 2 )This price represents the weighted average sales price. The shares sold at prices ranging from $12.31 to $12.469 per share. The reporting person will provide full details regarding the number of shares sold at each separate price upon the SEC's request.

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).

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