Company: SFNC
Filing Date: 2025-09-10
Form Type: 424B5
Source: 0001193125-25-200113
Chunk: 56

Company: SIMMONS FIRST NATIONAL CORP
Filing Date: 2025-09-10
Form: 424B5
Chunk 56
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 (b) the Benchmark Replacement Adjustment; |

S-36

| (3) | the sum of: (a) the ISDA Fallback Rate and (b) the Benchmark Replacement Adjustment; and |

| (4) | the sum of (a) the alternate rate that has been selected by the calculation agent as the replacement for                                                                                                                                         
 the then-current Benchmark for the applicable Corresponding Tenor, giving due consideration to any industry-accepted rate as a replacement for the then-current Benchmark for U.S. dollar-denominated floating rate securities at such time, and 
 (b) the Benchmark Replacement Adjustment.                                                                                                                                                                                                        |

“Benchmark Replacement Adjustment” means the first alternative set forth in the order below that can be determined by the calculation agent as of the Benchmark Replacement Date:

| (1) | the spread adjustment, or method for calculating or determining such spread adjustment (which may be a positive                                          
 or negative value or zero), that has been selected or recommended by the Relevant Governmental Body for the applicable Unadjusted Benchmark Replacement; |

| (2) | if the applicable Unadjusted Benchmark Replacement is equivalent to the ISDA Fallback Rate, then the ISDA 
 Fallback Adjustment; and                                                                                  |

| (3) | the spread adjustment (which may be a positive or negative value or zero) that has been selected by the                                                                                                                                            
 calculation agent, giving due consideration to any industry-accepted spread adjustment or method for calculating or determining such spread adjustment, for the replacement of the then-current Benchmark with the applicable Unadjusted Benchmark 
 Replacement for U.S. dollar-denominated floating rate securities at such time.                                                                                                                                                                     |

“Benchmark Replacement Conforming Changes” means, with respect to any Benchmark Replacement, any technical, administrative, or operational changes (including changes to the definition of “interest period,” timing and frequency of determining rates with respect to each interest period and making payments of interest, rounding of amounts or tenors, and other administrative matters) that the calculation agent determines may be appropriate to reflect the adoption of such Benchmark Replacement in a manner substantially consistent with market practice (or, if the calculation agent determines that adoption of any portion of such market practice is not administratively feasible or if the calculation agent determines that no market practice for use of the Benchmark Replacement exists, in such other manner as the calculation agent determines is reasonably necessary). “Benchmark Replacement Date” means the earliest to occur of the following events with respect to the then-current Benchmark:

| (1) | in the case of clause (1) of the definition of “Benchmark Transition Event