X0306 4 2013-09-19 0 0000868611 SONIC CORP SONC 0001065239 HUDSON J CLIFFORD 300 JOHNNY BENCH DRIVE OKLAHOMA CITY OK 73104 1 1 0 0 Chief Executive Officer Common Stock 305611 I By spouse as trustee of trust Common Stock 9855 I Trustee of son's trust Common Stock 8890 D Common Stock 2013-09-19 4 S 0 27000 18.70 D 55000 I By family owned LLC Common Stock 2013-09-19 4 S 0 103000 18.59 D 436800 I By self as trustee of trust Common Stock 2013-09-20 4 S 0 107000 18.42 D 329800 I By self as trustee of trust Common Stock 2013-09-23 4 S 0 63000 18.10 D 266800 I By self as trustee of trust The total number of shares beneficially owned directly represents 8,890 shares held in the 1991 Sonic Corp. Stock Purchase Plan as of August 31, 2013. This price represents the weighted average sales price. The shares sold at prices ranging from $18.65 to $18.741 per share. The reporting person will provide full details regarding the number of shares sold at each separate price upon the SEC's request. The reporting person owns 21% of the family limited liability company and disclaims beneficial ownership of the issuer's shares held by the family limited liability company except to the extent of his pecuniary interest. This price represents the weighted average sales price. The shares sold at prices ranging from $18.47 to $18.70 per share. The reporting person will provide full details regarding the number of shares sold at each separate price upon the SEC's request. This price represents the weighted average sales price. The shares sold at prices ranging from $18.335 to $18.56 per share. The reporting person will provide full details regarding the number of shares sold at each separate price upon the SEC's request. This price represents the weighted average sales price. The shares sold at prices ranging from $18.00 to $18.301 per share. The reporting person will provide full details regarding the number of shares sold at each separate price upon the SEC's request. Paige S. Bass for J. Clifford Hudson 2013-09-23