Company: SFNC
Filing Date: 2025-09-10
Form Type: 424B5
Source: 0001193125-25-200113
Chunk: 11

Company: SIMMONS FIRST NATIONAL CORP
Filing Date: 2025-09-10
Form: 424B5
Chunk 11
---
 at a price to the public of $18.50 per share, which includes 2,433,000 shares of the Company’s Class A common stock granted pursuant to the underwriters’ option to purchase additional shares at the public offering
price, less underwriting discounts. This offering generated net proceeds of approximately $326.9 million after deducting the underwriting discounts and commissions and estimated offering expenses payable by the Company.

For more information about the Common Equity Offering, see our Current Report on Form 8-K filed with
the SEC on July 23, 2025.

Investment Securities Transaction.

On July 23, 2025, we completed steps taken to reposition our balance sheet (the “Investment Securities Transaction”). In the
Investment Securities Transaction, the Company and its subsidiaries, as applicable, reclassified its held-to-maturity investment securities to available for sale. The
Company and its subsidiaries, as applicable, then sold approximately $3.2 billion (amortized cost basis) of its available for sale investment securities (including certain of those previously classified as held to maturity) for an aggregate
price of approximately $2.4 billion. The sale of investment securities resulted in an estimated, realized after-tax loss of approximately $606.7 million (based on an estimated tax rate of 24.3%),
which will be recorded during the third quarter of 2025.

For more information about the Investment Securities Transaction, see our
Current Report on Form 8-K filed with the SEC on July 25, 2025.

Redemption of Spirit Notes.

During the second quarter of 2025, we issued a notice of redemption to redeem subordinated debt (the “Spirit
Notes”) in an aggregate principal amount of $37.0 million that we assumed in April 2022 in connection with our acquisition of Spirit of Texas Bancshares, Inc. The Spirit Notes were redeemed in full on July 31, 2025.

S-6

The Offering

| Issuer | Simmons First National Corporation. |

| Securities offered by Us | 6.25% Fixed-to-Floating Rate Subordinated Notes due 2035. |

| Aggregate Principal Amount | $325,000,000 |

| Issue Price | 100.00% |

| For each interest period during the floating rate period, when the Benchmark rate is Three-Month Term SOFR, “Three-Month Term SOFR” means the rate for Term SOFR for a tenor of three months that is published