of this Current Report on Form 8-K is being furnished and shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or otherwise subject to the liabilities of that section, nor shall it be deemed incorporated by reference into any filing under the Securities Act of 1933, as amended, or the Securities Exchange Act of 1934, as amended. Forward-Looking Statements This Current Report on Form 8-K contains forward-looking statements within the meanin…

Costs Associated with Exit or Disposal Activities. In this Current Report on Form 8-K, unless the context suggests otherwise, the term “Company” refers to Simmons First National Corporation and, where applicable, its direct and indirect subsidiaries, including Simmons Bank. On September 1, 2026, the Company decided to close 26 Simmons Bank branches across its six-state footprint (“Branch Closures”). The Company’s decision was made as part of a broader review of the Company’s retail network st…

Results of Operations and Financial Condition. On July 16, 2026, the Registrant issued a press release, a copy of which is attached hereto as Exhibit 99.1 and is incorporated herein by reference. The information provided pursuant to this Item 2.02, including Exhibit 99.1, is being furnished and shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934 (“Exchange Act”) or otherwise subject to the liabilities under that Section and shall not be deemed to be i…

The filing discusses the approval of an amended and restated stock and incentive plan, which is a routine corporate action.

Results of Operations and Financial Condition. On April 16, 2026, the Registrant issued a press release, a copy of which is attached hereto as Exhibit 99.1 and is incorporated herein by reference. The information provided pursuant to this Item 2.02, including Exhibit 99.1, is being furnished and shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934 (“Exchange Act”) or otherwise subject to the liabilities under that Section and shall not be deemed to be…

James M. Brogdon: The amendment increased the severance compensation formula for Mr. Brogdon.

Other Events. On February 17, 2026, Simmons First National Corporation (“Company” or “Simmons”) issued a press release, a copy of which is attached hereto as Exhibit 99.1 and is incorporated herein by reference, announcing that its board of directors authorized a new stock repurchase program (“New Program”) under which the Company may repurchase up to $175,000,000 of its Class A common stock (“Common Stock”) currently issued and outstanding. The New Program will be executed in accordance with…

President and CEO — James M. Brogdon: Mr. Brogdon was promoted to President and CEO with a new compensation package.

Results of Operations and Financial Condition. On January 20, 2026, the Registrant issued a press release, a copy of which is attached hereto as Exhibit 99.1 and is incorporated herein by reference. The information provided pursuant to this Item 2.02, including Exhibit 99.1, is being furnished and shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934 (“Exchange Act”) or otherwise subject to the liabilities under that Section and shall not be deemed to b…

CEO — George Makris, Jr.: The filing discloses a compensatory arrangement (aircraft time sharing agreement) rather than a change in management or officer status.

null — George Makris, Jr.: The filing discloses a compensatory arrangement regarding the vesting of performance share units upon retirement, rather than the departure event itself.

Results of Operations and Financial Condition. On October 16, 2025, the Registrant issued a press release, a copy of which is attached hereto as Exhibit 99.1 and is incorporated herein by reference. The information provided pursuant to this Item 2.02, including Exhibit 99.1, is being furnished and shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934 (“Exchange Act”) or otherwise subject to the liabilities under that Section and shall not be deemed to b…

Cautionary Statement Regarding Forward-Looking Statements. This Current Report contains statements related to the Offering that are not based on historical facts and constitute “forward-looking statements” within the meaning of the Private Securities Litigation Reform Act of 1995, including regarding the anticipated use of the proceeds of the Offering and the repayment of the 2028 Notes. These forward-looking statements may be identified by reference to a future period(s) or by the use of for…

Entry into a Material Definitive Agreement. On September 12, 2025, Simmons First National Corporation (the “ Company ”) completed its previously-announced public offering (the “ Offering ”) of $325,000,000 aggregate principal amount of its 6.25% Fixed-to-Floating Rate Subordinated Notes due 2035 (the “ Notes ”). The Notes were offered and sold pursuant to the Company’s registration statement on Form S-3ASR (Registration No. 333-279502) which was previously filed with the U.S. Securities and E…

of Form 8-K and shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “ Exchange Act ”), or otherwise subject to the liabilities of that section, nor shall it be deemed incorporated by reference into any other filing under the Securities Act of 1933, as amended, or the Exchange Act. Cautionary Statement Regarding Forward-Looking Statements This Current Report, including Exhibit 99.1, contains statements related to the Offering that are…

Entry into a Material Definitive Agreement. On September 9, 2025, Simmons First National Corporation (the “ Company ”) entered into an underwriting agreement (the “ Underwriting Agreement ”) with Keefe, Bruyette & Woods, Inc. and Morgan Stanley & Co. LLC as representatives of the several underwriters named in Schedule A thereto (the “ Underwriters ”), pursuant to which the Company agreed to issue and sell $325 million in aggregate principal amount of subordinated notes (the “ Notes ”), to the…

The filing discloses an increase in life insurance benefits for existing officers, which is a compensatory arrangement rather than a change in management personnel.

CEO — George A. Makris, Jr.: The CEO is retiring with a pre-announced, named internal successor (President Jay Brogdon) taking over effective the next day, indicating an orderly succession rather than a sudden loss of leadership.

Completion of Acquisition or Disposition of Assets. On July 23, 2025, Simmons First National Corporation (the “ Company ”) and its subsidiaries completed steps taken to reposition its consolidated balance sheet (the “ Transaction ”). In the 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…

Entry into a Material Definitive Agreement. On July 21, 2025, Simmons First National Corporation (the “ Company ”) entered into an underwriting agreement (the “ Underwriting Agreement ”) with Stephens Inc., Keefe, Bruyette & Woods, Inc. and Morgan Stanley & Co. LLC as representatives of the several underwriters named in Schedule A thereto (the “ Underwriters ”), pursuant to which the Company agreed to issue and sell 18,653,000 shares of the Company’s Class A common stock, par value $0.01 per…

of Form 8-K and shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “ Exchange Act ”), or otherwise subject to the liabilities of that section, nor shall it be deemed incorporated by reference into any other filing under the Securities Act of 1933, as amended, or the Exchange Act. Cautionary Statement Regarding Forward-Looking Statements This Current Report, including Exhibit 99.1, may constitute “forward-looking statements” within th…

Results of Operations and Financial Condition. On July 17, 2025, the Registrant issued a press release, a copy of which is attached hereto as Exhibit 99.1 and is incorporated herein by reference. The information provided pursuant to this Item 2.02, including Exhibit 99.1, is being furnished and shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934 (“Exchange Act”) or otherwise subject to the liabilities under that Section and shall not be deemed to be i…

Results of Operations and Financial Condition. On April 16, 2025, the Registrant issued a press release, a copy of which is attached hereto as Exhibit 99.1 and is incorporated herein by reference. The information provided pursuant to this Item 2.02, including Exhibit 99.1, is being furnished and shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934 (“Exchange Act”) or otherwise subject to the liabilities under that Section and shall not be deemed to be…

CEO — Robert A. Fehlman: The filing details the compensation treatment for the CEO's previously disclosed retirement and transition to an advisory role, rather than a sudden or unexpected departure.

Results of Operations and Financial Condition. On January 21, 2025, the Registrant issued a press release, a copy of which is attached hereto as Exhibit 99.1 and is incorporated herein by reference. The information provided pursuant to this Item 2.02, including Exhibit 99.1, is being furnished and shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934 (“Exchange Act”) or otherwise subject to the liabilities under that Section and shall not be deemed to b…