Company: SFNC
Filing Date: 2025-07-23
Form Type: 424B5
Source: 0001193125-25-162761
Chunk: 12

Company: SIMMONS FIRST NATIONAL CORP
Filing Date: 2025-07-23
Form: 424B5
Chunk 12
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 |          12.21 | % |     |     |         12.00 | % |
| Tier 1 leverage ratio                      |     |                                     |          9.96 | % |     |     |           9.83 | % |     |     |          9.49 | % |
| Total risk-based capital ratio             |     |                                     |         14.42 | % |     |     |          14.59 | % |     |     |         14.17 | % |

Our regulatory capital balances and ratios include our outstanding common stock and outstanding subordinated notes. During the quarter ended June 30, 2025, we issued a notice of redemption to redeem $37.0 million of our subordinated notes due 2030 on July 31, 2025 assumed as part of the Spirit of Texas Bancshares, Inc. acquisition. Following such redemption, we will have issued and outstanding $330.0 million of redeemable subordinated notes that mature in April 2028, which we may redeem and/or refinance prior to maturity.

S-9

The Offering

During the third quarter of 2025, we anticipate raising gross proceeds from this offering of approximately $300.1 million, exclusive of
the underwriters’ option to purchase additional shares. We intend to use the net proceeds from this offering for general corporate which may include investments in Simmons Bank to support the contemplated balance sheet repositioning described
below and continued growth.

Contemplated Balance Sheet Repositioning

If this offering is completed on terms that are satisfactory to us during the third quarter of 2025 and if market conditions are satisfactory
to us, then we anticipate undertaking a balance sheet repositioning focused on our investment securities portfolio soon after the completion of this offering. If this offering is not completed on terms that are satisfactory to us during the third
quarter of 2025, our management will evaluate whether to proceed with the repositioning, if at all or in part, and the potential timing thereof. Subject to the foregoing, we expect that we would reclassify approximately $3.6 billion in par
value of held-to-maturity securities as available- for-sale. We would then sell approximately $3.2 billion of such securities in one or more transactions. We
anticipate the sale to result in an aggregate after-tax loss of approximately $608.6 million. We expect that the proceeds of the anticipated sale of securities would be used to partially repay our