Company: SFNC
Filing Date: 2025-04-03
Form Type: DEFR14A
Source: 0001174947-25-000480
Chunk: 0

Company: SIMMONS FIRST NATIONAL CORP
Filing Date: 2025-04-03
Form: DEFR14A
Chunk 0
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UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549 _________________ SCHEDULE 14A _________________ Proxy Statement Pursuant to Section 14(a) of the
Securities Exchange Act of 1934 (Amendment No. 1)

| Filed by the Registrant                    |     | ☒ |
| Filed by a Party other than the Registrant |     | ☐ |

Check the appropriate box:

| ☐ |     | Preliminary Proxy Statement                                                     |
| ☐ |     | Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) |
| ☒ |     | Definitive Proxy Statement                                                      |
| ☐ |     | Definitive Additional Materials                                                 |
| ☐ |     | Soliciting Material Pursuant to §240.14a-12                                     |

SIMMONS FIRST NATIONAL CORPORATION(Name of Registrant as Specified In Its Charter) _____________________________________________________________________(Name of Person(s) Filing Proxy Statement, if other than the Registrant) Payment of Filing Fee (Check all boxes that apply):

| ☒ |     | No fee required.                                                                                   |
| ☐ |     | Fee paid previously with preliminary materials                                                     |
| ☐ |     | Fee computed on table in exhibit required by Item 25(b) per Exchange Act Rules 14a6(i)(1) and 0-11 |

EXPLANATORY NOTE On April2, 2025, an incorrect version of the definitive proxy statement of Simmons First National Corporation (the “Company”) was filed by the Company’s financial printer in error. Accordingly, the Company is filing this Amendment No. 1 to Schedule 14A to replace, in its entirety, the definitive proxy statement that initially was filed. This Amendment No. 1 includes, in its entirety, the Company’s Notice of Annual Meeting of Shareholders, Proxy Statement and form of proxy card being mailed to the Company’s shareholders in connection with the Company’s 2025 Annual Meeting of Shareholders. NOTICE OF
ANNUAL MEETING OF SHAREHOLDERS TO THE SHAREHOLDERS OF SIMMONS FIRST NATIONAL CORPORATION: NOTICE IS HEREBY GIVEN that the annual meeting of the shareholders of Simmons First National Corporation (“Company”) will be held in the auditorium of the Company’s Little Rock, Arkansas, corporate offices (601 E. 3 rd Street, Little Rock, Arkansas, 72201) at 8:00