Other Information
−Removed: During the three months ended September 30, 2025, none of our directors or officers (as defined in Rule 16a-1(f) of the Exchange Act) adopted , modified or terminated a Rule 10b5-1 trading arrangement or non-Rule 10b5-1 trading arrangement (as such terms are defined in Item 408 of Regulation S-K of the Securities Act of 1933).
+Added: During the three months ended March 31, 2026, none of our directors or officers (as defined in Rule 16a-1(f) of the Exchange Act) adopted , modified or terminated a Rule 10b5-1 trading arrangement or non-Rule 10b5-1 trading arrangement (as such terms are defined in Item 408 of Regulation S-K of the Securities Act of 1933).
Amended and Restated Articles of Incorporation of Simmons First National Corporation, as amended on July 14, 2021 (incorporated by reference to Exhibit 3.1 to the Registration Statement on Form S-4 filed under the Securities Act of 1933 by Simmons First National Corporation on July 21, 2021 (File No.
1 unchanged sentence
Articles of Amendment to the Amended and Restated Articles of Incorporation of Simmons First National Corporation, dated August 3, 2022 (incorporated by reference to Exhibit 3.2 to Simmons First National Corporation’s Quarterly Report on Form 10-Q for the quarter ended September 30, 2022 (File No.
−Removed: Amended and Restated By-Laws of Simmons First National Corporation (incorporated by reference to Exhibit 3.1 to Simmons First National Corporation’s Current Report on Form 8-K filed on December 26, 2023 (File No.
+Added: Amended and Restated By-Laws of Simmons First National Corporation (incorporated by reference to Exhibit 3.3 to Simmons First National Corporation’s Annual Report on Form 10-K for the year ended December 31, 2025 (File No.
4.1 Instruments defining the rights of security holders, including indentures.
2 unchanged sentences
No issuance of debt exceeds ten percent of the total assets of the Corporation and its subsidiaries on a consolidated basis.
−Removed: Simmons Bank Endorsement Split-Dollar Life Insurance Plan (with Schedule of Material Differences as of August 1, 2025) (incorporated by reference to Exhibit 10.1 to Simmons First National Corporation’s Current Report on Form 8-K filed on August 6, 2025 (File No.
+Added: First Amendment to Executive Change in Control Severance Agreement for James M.
+Added: Brogdon dated February 27, 2026 (incorporated by reference to Exhibit 10.1 to Simmons First National Corporation’s Current Report on Form 8-K filed on March 3, 2026 (File No.
+Added: Executive Change in Control Severance Agreement for Jonathan Schneider dated February 27, 2026.*
+Added: Indemnification Agreement for Jonathan Schneider dated February 27, 2026.*
+Added: Executive Change in Control Severance Agreement for Brian Jackson dated February 27, 2026.*
+Added: Indemnification Agreement for Brian Jackson dated February 27, 2026.*
+Added: Form of Associated Restricted Stock Unit Award Agreement (2023 Plan – 2026 Form).*
+Added: Form of Performance Share Unit Award Agreement (2023 Plan – 2026 Form).*
+Added: Form of Performance Cash Award Agreement (2023 Plan – 2026 Form).*
Amended and Restated Simmons First National Corporation Code of Ethics (as amended and restated on December 19, 2023) (incorporated by reference to Exhibit 14.1 to Simmons First National Corporation’s Current Report on Form 8-K filed on December 26, 2023 (File No.
1 unchanged sentence
Awareness Letter of Forvis Mazars, LLP.*
−Removed: Rule 13a-15(e) and 15d-15(e) Certification – George A.
−Removed: Makris, Jr., Chairman and Chief Executive Officer.*
+Added: Rule 13a-15(e) and 15d-15(e) Certification – James M.
+Added: Brogdon, President and Chief Executive Officer.*
Rule 13a-15(e) and 15d-15(e) Certification – C.
3 unchanged sentences
Certification Pursuant to 18 U.S.C.
−Removed: Sections 1350, as Adopted Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 – George A.
−Removed: Makris Jr., Chairman and Chief Executive Officer.**
+Added: Sections 1350, as Adopted Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 – James M.
+Added: Brogdon, President and Chief Executive Officer.**
Certification Pursuant to 18 U.S.C.
16 unchanged sentences
SIMMONS FIRST NATIONAL CORPORATION
−Removed: November 6, 2025 /s/ George A.
−Removed: Chairman and Chief Executive Officer
+Added: May 6, 2026 /s/ James M.
+Added: President and Chief Executive Officer
(Principal Executive Officer)
−Removed: November 6, 2025 /s/ C.
+Added: May 6, 2026 /s/ C.
Executive Vice President and Chief Financial Officer
(Principal Financial Officer)
−Removed: November 6, 2025 /s/ David W.
+Added: May 6, 2026 /s/ David W.
Executive Vice President and Chief Accounting Officer
1 unchanged sentence
Compared sentence by sentence after normalising whitespace, quotation marks, case and digits, so re-formatting and restated figures do not read as changed language. Wording changes appear as one removal and one addition. The current filing and the prior one are authoritative.