X0306 4/A 2013-09-25 2013-09-25 0 0000868611 SONIC CORP SONC 0000903853 RICHARDSON FRANK E III 300 JOHNNY BENCH DRIVE OKLAHOMA CITY OK 73104 1 0 0 0 Common Stock 23151 I Trustee of children's trusts Common Stock 2013-09-25 4 S 0 100901 18.072 D 1755286 D Common Stock 2013-09-26 4 S 0 49099 17.859 D 1706187 D This price represents the weighted average sales price. The shares sold at prices ranging from $18.00 to $18.24 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 $17.80 to $18.00 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 number of indirect and direct beneficially owned shares contains a corrected calculation. The total number of beneficially owned shares did not change. Carolyn C. Cummins for Frank E. Richardson 2013-10-31