X0306 4 2016-01-28 0 0000868611 SONIC CORP SONC 0001289678 Cummins Carolyn C. 300 JOHNNY BENCH DRIVE OKLAHOMA CITY OK 73104 0 1 0 0 Vice President Common Stock 2016-01-08 5 G 0 1200 0 D 22200 D Common Stock 2016-01-08 5 G 0 400 0 A 626 I As guardian for child Incentive Stock Option (right to buy) 29.37 2016-01-28 4 A 0 3853 0 A 2023-01-28 Common Stock 3853 3853 D Non-qualified Stock Option (right to buy) 29.37 2016-01-28 4 A 0 1293 0 A 2023-01-28 Common Stock 1293 1293 D The total number of shares beneficially owned directly includes 1410 shares held in the Sonic Corp. Stock Purchase Plan as of January 26, 2016. One-third of the total number of options granted on January 28, 2016 will vest on each of the first three anniversary dates following the grant date. Carolyn C. Cummins 2016-02-01