Company: SFNC
Filing Date: 2025-07-23
Form Type: 424B5
Source: 0001193125-25-162761
Chunk: 39

Company: SIMMONS FIRST NATIONAL CORP
Filing Date: 2025-07-23
Form: 424B5
Chunk 39
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 us and our affiliates, for which they received or will receive customary fees and expenses.

Stephens Inc., a joint book-running manager in this offering and representative of the underwriters, is deemed to have a “conflict of
interest” under FINRA Rule 5121 as a result of the service of its Chief Financial Officer, Mark Doramus, on our Board of Directors. Accordingly, this offering is being conducted in compliance with Rule 5121. Pursuant to Rule 5121(a)(2)(B), a
qualified independent underwriter is not required because a bona fide public market exists for our common stock. In accordance with Rule 5121, no underwriter with a conflict of interest will confirm sales to any account over which it exercises
discretionary authority without the prior specific written approval of the account holder. Separately, Stephens Inc. is also a customer of Simmons Bank, and an affiliate of Stephens Inc. serves as our insurance broker.

Morgan Stanley, one of the joint book-running managers in this offering, is also expected to provide advisory and execution services in
connection with the contemplated balance sheet repositioning following the offering.

In addition, in the ordinary course of their various
business activities, the underwriters and their respective affiliates may make or hold a broad array of investments and actively trade debt and equity securities (or related derivative securities) and financial instruments (including bank loans) for
their own account and for the accounts of their customers, and such investment and securities activities may involve securities or instruments issued by us and our affiliates. If the underwriters or their respective affiliates have a lending
relationship with us, they routinely hedge their credit exposure to us consistent with their customary risk management policies. The underwriters and their respective affiliates may hedge such exposure by entering into transactions which consist of
either the purchase of credit default swaps or the creation of short positions in our securities or the securities of our affiliates, including potentially the shares of common stock offered hereby. Any such short positions could adversely affect
future trading prices of the shares of common stock offered hereby. The underwriters and their respective affiliates may also communicate independent investment recommendations, market color or trading ideas or publish or express independent
research views in respect of such securities or instruments and may at any time hold, or recommend to clients that they acquire, long or short positions in such securities and instruments.

S-32

Notice to Investors Canada The shares may be sold only to purchasers purchasing, or deemed to be purchasing, as principal that are accredited investors,