Company: SFNC
Filing Date: 2025-07-23
Form Type: 424B5
Source: 0001193125-25-162761
Chunk: 38

Company: SIMMONS FIRST NATIONAL CORP
Filing Date: 2025-07-23
Form: 424B5
Chunk 38
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 out any naked short position by purchasing shares in the open market. A naked short position is more likely to be created if the underwriters are concerned that there may be downward pressure on the price of the common stock in the open market after pricing that could adversely affect investors who purchase in this offering. The underwriters also may engage in syndicate covering transactions, which are transactions that involve purchases of common stock in the open market after the distribution has been completed in order to cover syndicate short positions. These transactions may have the effect of raising or maintaining the market price of the shares of our common stock or preventing or retarding a decline in the market price of the shares of our common stock. As a result, the price of the shares of our common stock in the open market may be higher than it would otherwise be in the absence of these transactions. Neither we nor the underwriters make any representation or prediction as to S-31

the effect that the transactions described above may have on the price of the shares of our common stock. These transactions may be effected on Nasdaq, in the over-the-counter market or otherwise and, if commenced, may be discontinued at any time without notice.

Electronic Prospectus Delivery

A
prospectus supplement in electronic format may be made available by e-mail or on the websites maintained by the underwriters. In connection with this offering, the underwriters or
certain securities dealers may distribute prospectuses electronically. In those cases, prospective investors may view offering terms online and may be allowed to place orders online. The underwriters may agree with us to allocate shares of our
common stock for sale to online brokerage account holders. Any such allocation of online distributions will be made by the underwriters on the same basis as other allocations. Other than this prospectus supplement in electronic format, the
information on any of these websites and any other information contained on a website maintained by an underwriter or syndicate member is not part of this prospectus supplement, has not been approved and/or endorsed by the underwriters or us and
should not be relied upon by investors.

Other Activities and Relationships

The underwriters and their respective affiliates are full service financial institutions engaged in various activities, which may include
securities trading, commercial and investment banking, financial advisory, investment management, investment research, principal investment, hedging, financing and brokerage activities. Certain of the underwriters and their respective affiliates
have, from time to time, performed, and may in the future perform, various commercial and investment banking and financial advisory services for