Company: SFNC
Filing Date: 2025-04-02
Form Type: DEF 14A
Source: 0001174947-25-000476
Chunk: 24

Company: SIMMONS FIRST NATIONAL CORP
Filing Date: 2025-04-02
Form: DEF 14A
Chunk 24
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 restrictions concerning retaliation. The policy also provides for certain Board reporting and oversight. •We also maintain a Related Party Transactions Policy to address matters with respect to related party business dealings. 16

Policy Regarding Employee, Officer and Director Hedging and Pledging We have a policy that prohibits directors of the Company or any of its affiliates, as well as officers of those entities who are at least senior vice presidents, from engaging in transactions (including, without limitation, prepaid variable forward contracts, short sales, call or put options, equity swaps, collars, units of exchange funds, and other derivatives) that are designed to hedge or offset, or that may reasonably be expected to have the effect of hedging or offsetting, a decrease in the market value of any Company securities. In addition, such persons are prohibited from pledging, hypothecating, or otherwise encumbering Company securities as collateral for indebtedness. Any exception to the policy requires the prior approval of the NCGC. Communication with Directors Shareholders may communicate directly with the Board by sending correspondence to the address shown below. If the shareholder desires to communicate with a specific director, the correspondence should be addressed to such director. Correspondence addressed to the Board will be forwarded to the Chairman of the Board for review. The receipt of the correspondence and the nature of its content will be reported at the next Board (or appropriate committee of the Board) meeting and appropriate action, if any, will be taken. Correspondence addressed to a specific director will be delivered to such director promptly after receipt by the Company. Each such director shall review the correspondence received and, if appropriate, report the receipt of the correspondence and the nature of its content to the Board at its next meeting so that the appropriate action, if any, may be taken.

| Correspondence should be addressed to: |     | Simmons First National Corporation         |
|                                        |     | Board of Directors                         |
|                                        |     | Attention: (Chairman or Specific Director) |
|                                        |     | P. O. Box 7009                             |
|                                        |     | Pine Bluff, Arkansas 71611                 |

17

NOMINATING AND CORPORATE GOVERNANCE COMMITTEE The NCGC is currently composed of Steven Cossé (Chair), Edward Drilling, Susan Lanigan, Tom Purvis, and Robert L. Shoptaw. The Board appoints each member of the NCGC and has determined that each member is, and each member who served during 2024 was, independent