Company: SFNC
Filing Date: 2025-09-10
Form Type: 424B5
Source: 0001193125-25-200113
Chunk: 36

Company: SIMMONS FIRST NATIONAL CORP
Filing Date: 2025-09-10
Form: 424B5
Chunk 36
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 any successor entity. Neither the Indenture nor the Notes contain any covenants or restrictions restricting the incurrence of debt,
deposits or other liabilities by us or by our subsidiaries. The Indenture and the Notes contain no financial covenants and do not restrict us from paying dividends, selling assets, making investments or issuing or repurchasing other securities, and
do not contain any provision that would provide protection to the holders of the Notes against a sudden and dramatic decline in our credit quality resulting from a merger, takeover, recapitalization or similar restructuring or any other event
involving us or our subsidiaries that may adversely affect our credit quality.

The Notes are not savings accounts, deposits or other
obligations of Simmons Bank or any of our non-bank subsidiaries and are not insured or guaranteed by the FDIC or any other governmental agency or public or private insurer. The Notes are solely obligations of
Simmons and are neither obligations of, nor guaranteed by, any of our subsidiaries.

We do not intend to apply for the listing of the
Notes on any securities exchange or the quotation of the Notes on any quotation system.

Interest

From and including the date of original issuance to, but excluding, October 1, 2030, or the date of earlier redemption (the “fixed rate
period”), the Notes will bear interest at an initial rate of 6.25% per annum, payable semi-annually in arrears on April 1 and October 1 of each year (each, a “fixed rate interest payment date”), commencing on April 1, 2026. The
last fixed rate interest payment date for the fixed rate period will be October 1, 2030.

From and including October 1, 2030 to, but
excluding, the Maturity Date or the date of earlier redemption (the “floating rate period”), the Notes will bear interest at a floating rate per annum equal to the Benchmark rate (which is expected to be Three-Month Term SOFR)
plus 302 basis points for each quarterly interest period during the floating rate period, payable quarterly in arrears on January 1, April 1, July 1 and October 1 of each year (each, a “floating rate interest payment date,” and,
together with the fixed rate interest payment dates, the “interest payment dates”), commencing on January 1, 2031. Notwithstanding the foregoing, if the Benchmark rate is less than zero, the Benchmark