Shareholder Vote

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549     FORM 8-K     CURRENT REPORT Pursuant to Section 13 or 15(d) of the Exchange Act of 1934 Date of Report (Date of earliest event reported) May 7, 2025     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 (see General Instruction A.2. below):   ☐ 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 5.07 Submission of Matters to a Vote of Security Holders. On May 7, 2025, Simmons First National Corporation (“Corporation”) held its Annual Meeting of Shareholders (“Meeting”) at the Corporation’s corporate offices in Little Rock, Arkansas. At the Meeting, the following matters were submitted to the Corporation’s security holders for consideration: (1) ratification of the action of the Corporation’s board of directors fixing the number of directors at fourteen; (2) election of fourteen directors; (3) adoption of a non-binding resolution approving the compensation of the named executive officers of the Corporation; and (4) ratification of the Audit Committee’s selection of the accounting firm Forvis Mazars, LLP as independent auditors of the Corporation and its subsidiaries for the year ending December 31, 2025. At the Meeting, all fourteen directors were elected by proxies solicited pursuant to Section 14 of the Securities Exchange Act of 1934, without any solicitation in opposition thereto. The following table summarizes the required analysis of the voting by security holders at the Meeting: Voting of Shares   Action   For   Against   Abstain   Broker Non-Votes Fix the number of directors at fourteen   107,386,935   690,992   321,259   0 Election of Directors   For   Against   Abstain   Broker Non-Votes Marty D. Casteel   89,383,703   1,400,905   128,585   17,485,993 William E. Clark, II   88,174,595   2,620,094   118,504   17,485,993 Steven A. Cosse   82,038,500   8,746,801   127,892   17,485,993 Mark C. Doramus   88,238,767   2,553,267   121,159   17,485,993 Edward Drilling   86,806,748   3,980,953   125,492   17,485,993 Eugene Hunt   88,148,945   2,645,336   118,912   17,485,993 Jerry Hunter   89,337,646   1,453,676   121,871   17,485,993 Susan Lanigan   87,811,190   2,951,081   150,922   17,485,993 George A. Makris, Jr.   86,340,191   4,451,632   121,370   17,485,993 Tom E. Purvis   87,696,763   3,095,259   121,171   17,485,993 Robert L. Shoptaw   86,437,259   4,356,229   118,670   17,485,993 Julie Stackhouse   89,419,762   1,374,052   119,379   17,485,993 Russell Teubner   89,440,177   1,353,599   119,417   17,485,993 Mindy West   89,353,087   1,440,012   120,094   17,485,993 Action   For   Against   Abstain   Broker Non-Votes Adoption of a non-binding resolution approving the compensation of the named executive officers   88,021,550   2,438,931   452,711   17,485,993 Action   For   Against   Abstain   Broker Non-Votes Ratification of the Audit Committee’s selection of Forvis Mazars, LLP as independent auditors of the Corporation and its subsidiaries for the year ending December 31, 2025   104,700,182   3,616,187   82,816   0 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/ C. Daniel Hobbs Date: May 8, 2025       C. Daniel Hobbs, Executive Vice President and Chief Financial Officer