Executive Change

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549     FORM 8-K   CURRENT REPORT   Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934   Date of Report (Date of earliest event reported) July 26, 2023     SIMMONS FIRST NATIONAL CORPORATION (Exact name of registrant as specified in its charter)   Arkansas 0-6253 71-0407808 (State or other jurisdiction of incorporation) (Commission File Number) (I.R.S. Employer Identification No.)       501 Main Street , Pine Bluff , Arkansas   71601 (Address of principal executive offices)   (Zip Code)     (870) 541-1000 (Registrant's telephone number, including area code)     Not Applicable (Former name or former address, if changed since last report.)     Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:   ☐   Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)   ☐   Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)   ☐   Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))   ☐   Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))   Securities registered pursuant to Section 12(b) of the Act:   Title of each class Trading Symbol(s) Name of each exchange on which registered Common stock, par value $0.01 per share SFNC The Nasdaq Global Select Market   Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (17 CFR §230.405) or Rule 12b-2 of the Securities Exchange Act of 1934 (17 CFR §240.12b-2). Emerging growth company ☐   If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐        Item 5.02 Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers.   (e)   Separation Agreement and Release for Matthew Reddin   On July 26, 2023, Simmons First National Corporation (“Company”) and its wholly-owned subsidiary, Simmons Bank (“Bank”), entered into a Separation Agreement and Release (“Agreement”) with Matthew Reddin, whose employment with the Company and the Bank as Executive Vice President and Chief Banking Officer ended effective July 5, 2023 (as reported by the Company in its Current Report on Form 8-K filed with the U.S. Securities and Exchange Commission on July 7, 2023). Pursuant to the Agreement, Mr. Reddin will receive a lump sum payment of $1,000,000 (less appliable taxes and other required deductions and withholdings) and certain other benefits; and Mr. Reddin has agreed to, among other things, a customary, general waiver and release of claims, as well as post-employment covenants with respect to confidential information, non-competition, and non-solicitation of certain customers and employees.   The description of the Agreement set forth in this Item 5.02 is not complete and is qualified in its entirety by reference to the full text of the Agreement among the Company, the Bank, and Mr. Reddin, which is included as Exhibit 10.1 to this Current Report on Form 8-K and is incorporated herein by reference.   Item 9.01 Financial Statements and Exhibits.   Exhibit No.   Description       10.1   Separation Agreement and Release among Simmons First National Corporation, Simmons Bank, and Matthew Reddin dated July 26, 2023 104   Cover Page Interactive Data File (embedded within the Inline XBRL document)           SIGNATURE   Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.       SIMMONS FIRST NATIONAL CORPORATION           /s/ Robert A. Fehlman Date: July 28, 2023   Robert A. Fehlman, Chief Executive Officer