MAKRIS GEORGE A III 4

What Happened
George A. Makris III, EVP, General Counsel & Corporate Secretary of Simmons First National Corp. (SFNC), had 1,913 restricted stock units (RSUs) vest and convert into 1,913 common shares on March 4, 2026. To satisfy tax withholding obligations, 541 of those shares were withheld (disposed) at $20.21 per share for a total withholding of $10,934, leaving a net delivery of 1,372 shares to the reporting person. The Form 4 was filed on March 6, 2026.

Key Details

• Transaction date: March 4, 2026; Form 4 filed March 6, 2026 (timely filing).
• Vesting/conversion: 1,913 RSUs converted to 1,913 common shares (code M — conversion of derivative).
• Tax withholding: 541 shares withheld at $20.21 each; total value withheld $10,934 (code F).
• Net shares delivered to insider: 1,372 (1,913 − 541).
• Shares owned after transaction: not specified in this filing (a correction footnote notes a prior Form 4 duplicated 200 shares).
• Footnotes: RSUs convert 1-for-1; these RSUs vested on 3/4/2026. Remaining RSUs vest 1,193 on 3/4/2027 and 1,194 on 3/4/2028 and will be delivered within 30 days of vesting; certain events may accelerate vesting.

Context
This was an award vesting event (not an open-market buy or discretionary sale). The withholding of shares to cover tax liabilities is a routine administrative step (a cashless settlement via share withholding) and does not by itself indicate a change in the insider’s view of the company. Remaining RSU tranches are scheduled to vest in 2027 and 2028 per the award terms.