X0306 4 2018-01-18 0 0000090498 SIMMONS FIRST NATIONAL CORP SFNC 0001558907 COMPTON JENNIFER BRYNN C/O SIMMONS FIRST NATIONAL CORP. 501 MAIN STREET PINE BLUFF AR 71601 0 1 0 0 EVP SFNC 2018-01-18 4 M 0 320 58.25 A 8958 D SFNC 2018-01-18 4 F 0 156 58.25 D 8802 D SFNC 2018-01-18 4 M 0 777 58.25 A 9579 D SFNC 2018-01-18 4 F 0 378 58.25 D 9201 D Restricted Stock Unit 2018-01-18 4 A 0 1272 0.00 A Common 1272 1272 D Performance Stock Unit 2018-01-18 4 A 0 2544 0.00 A Common 2544 2544 D Performance Stock Unit 58.25 2018-01-18 4 M 0 320 58.25 D Common 320 0 D Performance Stock Unit 58.25 2018-01-18 4 M 0 777 58.25 D Common 777 0 D Each Restricted Stock Unit represents a contingent right to receive one share of Simmons First National Corporation common stock. 419 Restricted Stock Units vest on January 18, 2019; 420 Restricted Stock Units vest on January 18, 2020 and 433 Restricted Stock Units vest on January 18, 2021. SFNC shares will be delivered within 30 days of vesting. Events such as retirement, death, disability and other specified events in the agreement may result in earlier vesting. Each Performance Stock Unit represents a contingent right to receive one share of Simmons First National Corporation common stock. The shares listed are the maximum number of shares which may vest under this grant. Vesting will occur subsequent to the attainment of performance goals set and verified by the Compensation Committee of the Company's Board of Directors for the performance period ending December 31, 2020, contingent upon the reporting person's continued employment with the registrant. The Performance Stock Units vested on January 18, 2018 upon confirmation of the performance criteria set by the Compensation Committee. /s/ Jennifer Brynn Compton by Danielle Hasty 2018-01-22