X0306 4 2018-01-18 0 0000090498 SIMMONS FIRST NATIONAL CORP SFNC 0001235478 MAKRIS GEORGE JR SIMMONS FIRST NATIONAL CORP. 501 MAIN STREET PINE BLUFF AR 71601 1 1 0 0 Chairman & CEO SFNC 2018-01-18 4 A 0 25000 58.25 A 127883 D SFNC 2018-01-18 4 F 0 11537 58.25 D 116346 D SFNC 2018-01-18 4 A 0 6103 58.25 A 122449 D SFNC 2018-01-18 4 F 0 2902 58.25 D 119547 D SFNC 2018-01-18 4 M 0 2270 58.25 A 121817 D SFNC 2018-01-18 4 F 0 1050 58.25 D 120767 D SFNC 44396 D SFNC 1871 I Trust SFNC 898 D SFNC 508 D SFNC 4050 I By IRA SFNC 4750 I IRA (Spouse) SFNC 67 I By IRA Restricted Stock Unit 58.25 2018-01-18 4 M 0 2270 58.25 A Common 2270 5421 D Restricted Stock Unit 2018-01-18 4 A 0 7563 0.00 A Common 7563 7563 D Performance Stock Unit 2018-01-18 4 A 0 15126 0.00 A Common 15126 15126 D The Restricted Stock Unit vested on January 18, 2018. One half of the Restricted Stock Unit vests on January 18, 2019 and 2020. 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 Restricted Stock Unit represents a contingent right to receive one share of Simmons First National Corporation common stock. 2,495 Restricted Stock Units vest on January 18, 2019; 2,496 Restricted Stock Units vest on January 18, 2020 and 2,572 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. Total share amount increased by 399 shares due company's Employee Stock Purchase Plan. /s/ George Makris, Jr. by Danielle Hasty 2018-01-22