X0306 4 2018-01-31 0 0000868611 SONIC CORP SONC 0001362276 DAVIS STEVEN A 300 JOHNNY BENCH DRIVE OKLAHOMA CITY OK 73104 1 0 0 0 Common Stock 6772 I trustee of benefit plan Restricted Stock Unit 0 2018-01-31 4 A 0 2032 0 A common stock 2032 2032 D Nonqualified stock option (right to buy) 25.84 2018-01-31 4 A 0 8237 0 A 2025-01-31 common stock 8237 8237 D Restricted Stock Units will vest on the earlier of (i) the first anniversary of the Grant Date or (ii) the date of the Sonic Corp. annual shareholders' meeting in the following year, and will be issued in shares of Sonic Corp. common stock on a one-for-one basis, subject to certain restrictions. Nonqualified Stock Options will vest on the earlier of (i) the first anniversary of the Grant Date or (ii) the date of the Sonic Corp. annual shareholders' meeting in the following year. Carolyn C. Cummins for Steven A. Davis 2018-02-02