SOUTHERN MISSOURI BANCORP, INC. 10-Q

Item 5 : Other Information a. None b. None c. Trading Plans. During the quarter ended September 30, 2025, no director or officer (as defined in Rule 16a-1(f) under the Exchange Act) of the Company adopted or terminated a “Rule 10b5-1 trading arrangement,” or “non-rule 10b5-1 trading arrangement, as each term is defined in Item 408(a) of Regulation S-K. ​ -60- Table of Contents Item 6 : Exhibits ​ ​ Exhibit Number ​ Document 3.1(i) ​ Articles of Incorporation of the Registrant (filed as an exhibit to the Registrant’s Annual Report on Form 10-KSB for the fiscal year ended June 30, 1999 and incorporated herein by reference) 3.1(i)A ​ Amendment to Articles of Incorporation of Southern Missouri increasing the authorized capital stock of Southern Missouri (filed as an exhibit to Southern Missouri’s Current Report on Form 8-K filed on November 21, 2016 and incorporated herein by reference) 3.1(i)B ​ Amendment to Articles of Incorporation of Southern Missouri increasing the authorized capital stock of Southern Missouri (filed as an exhibit to Southern Missouri’s Current Report on Form 8-K filed on November 8, 2018 and incorporated herein by reference) 3.1(ii) ​ Certificate of Designation for the Registrant’s Senior Non-Cumulative Perpetual Preferred Stock, Series A (filed as an exhibit to the Registrant’s Current Report on Form 8-K filed on July 26, 2011 and incorporated herein by reference) 3.2 ​ Bylaws of the Registrant (filed as an exhibit to the Registrant’s Current Report on Form 8-K filed on December 6, 2007 and incorporated herein by reference) 4 ​ Description of Registrant’s Securities Registered Pursuant to Section 12 of the Securities Exchange Act of 1934 (filed as an exhibit to the Registrant’s Annual Report on Form 10-K for the year ended June 30, 2020 and incorporated herein by reference). 10 ​ Material Contracts: ​ 1. Registrant’s 2024 Omnibus Incentive Plan (attached to the Registrant’s definitive proxy statement filed on September 23, 2024, and incorporated herein by reference) ​ ​ 2. Registrant’s 2017 Omnibus Incentive Plan (attached to the Registrant’s definitive proxy statement filed on September 26, 2017, and incorporated herein by reference) ​ 3. 2008 Equity Incentive Plan (attached to the Registrant’s definitive proxy statement filed on September 19, 2008 and incorporated herein by reference) ​ 4. 2003 Stock Option and Incentive Plan (attached to the Registrant’s definitive proxy statement filed on September 17, 2003 and incorporated herein by reference) ​ 5. Employment Agreements ​ (i) Employment Agreement with Greg A. Steffens (filed as an exhibit to the Registrant’s Annual Report on Form 10-KSB for the year ended June 30, 2019 and incorporated herein by reference) ​ (ii) Amended and Restated Employment Agreement with Greg A. Steffens (filed as an exhibit to the Registrant’s Quarterly Report on Form 10-Q for the quarter ended September 30, 2019, and incorporated herein by reference) ​ 6. Director’s Retirement Agreements ​ (i) Director’s Retirement Agreement with Sammy A. Schalk (filed as an exhibit to the Registrant’s Quarterly Report on Form 10-QSB for the quarter ended December 31, 2000 and incorporated herein by reference) ​ (ii) Director’s Retirement Agreement with L. Douglas Bagby (filed as an exhibit to the Registrant’s Quarterly Report on Form 10-QSB for the quarter ended December 31, 2000 and incorporated herein by reference) ​ (iii) Director’s Retirement Agreement with Rebecca McLane Brooks (filed as an exhibit to the Registrant’s Quarterly Report on Form 10-QSB for the quarter ended December 31, 2004 and incorporated herein by reference) ​ (iv) Director’s Retirement Agreement with Charles R. Love (filed as an exhibit to the Registrant’s Quarterly Report on Form 10-QSB for the quarter ended December 31, 2004 and incorporated herein by reference) ​ (v) Director’s Retirement Agreement with Dennis C. Robison (filed as an exhibit to the Registrant’s Quarterly Report on Form 10-Q for the quarter ended December 31, 2008 and incorporated herein by reference) ​ (vi) Director’s Retirement Agreement with David J. Tooley (filed as an exhibit to the Registrant’s Quarterly Report on Form 10-Q for the quarter ended December 31, 2011 and incorporated herein by reference) ​ (vii) Director’s Retirement Agreement with Todd E. Hensley (filed as an exhibit to the Registrant’s Annual Report on Form 10-K for the year ended June 30, 2014 and incorporated herein by reference) ​ ​ 7. Tax Sharing Agreement (filed as an exhibit to the Registrant’s Quarterly Report on Form 10-Q for the quarter ended March 31, 2015 and incorporated herein by reference) ​ ​ 8. Change-in-Control Agreements -61- Table of Contents ​ ​ ​ (i) Change-in-Control Agreement with Kimberly A. Capps (filed as an exhibit to the Registrant’s Quarterly Report on Form 10-Q for the quarter ended September 30, 2019 and incorporated herein by reference) ​ ​ ​ (ii) Change-in -Control Agreement with Matthew Funke (filed as an exhibit to the Registrant’s Quarterly Report on Form 10-Q for the quarter ended September 30, 2019 and incorporated herein by reference) ​ ​ ​ (iii) Change-in-Control Agreement with Justin G. Cox (filed as an exhibit to the Registrant’s Quarterly Report on Form 10-Q for the quarter ended September 30, 2019 and incorporated herein by reference) ​ ​ ​ (iv) Amended and Restated Change-in-Control Agreement with Rick A. Windes (filed as an exhibit to the Registrant’s Form 8-K for the event on July 23, 2025 and incorporated herein by reference) ​ ​ ​ (v) Change-in -Control Agreement with Mark Hecker (filed as an exhibit to the Registrant’s Form 8-K for the event on April 20, 2021 and incorporated herein by reference) ​ ​ ​ (vi) Change-in -Control Agreement with Brett Dorton (filed as an exhibit to the Registrant’s Form 8-K for the event on March 25, 2022 and incorporated herein by reference) ​ ​ ​ (vii) Change-in-Control Agreement with Lance Greunke (filed as an exhibit to the Registrant’s Quarterly Report on Form 10-Q for the quarter ended March 31, 2023 and incorporated herein by reference) ​ ​ 10.1 Named Executive Officer Salary and Bonus Arrangements for fiscal 2025 (filed as an exhibit to Registrant’s Annual Report on Form 10-K for the year ended June 30, 2025 and incorporated herein by reference) ​ ​ 10.2 Director Fee Arrangements for 2025 (filed as an exhibit to Registrant’s Annual Report on Form 10- K for the year ended June 30, 2025 and incorporated herein by reference) 19 ​ I nsider Trading Policy (filed as an exhibit to Registrant’s Annual Report on Form 10-K for the year ended June 30, 2025 and incorporated herein by reference) 21 ​ Subsidiaries of the Registrant (filed as an exhibit to Registrant’s Annual Report on Form 10-K for the year ended June 30, 2025 and incorporated herein by reference) 31.1 ​ Rule 13a-14(a) Certification of Chief Executive Officer 31.2 ​ Rule 13a-14(a) Certification of Chief Financial Officer 32 ​ Certification pursuant to Section 906 of Sarbanes-Oxley Act of 2002 (18 U.S.C. Section 1350) 101 ​ Includes the following financial and related information from Southern Missouri Bancorp, Inc.’s Quarterly Report on Form 10-Q as of and for the quarter ended September 30, 2025, formatted in Inline Extensible Business Reporting Language (iXBRL): (1) the Consolidated Balance Sheets, (2) the Consolidated Statements of Income, (3) the Consolidated Statements of Comprehensive Income, (4) the Consolidated Statements of Changes in Stockholders’ Equity, (5) the Consolidated Statements of Cash Flows, and (6) Notes to Consolidated Financial Statements. 104 ​ The cover page from this Quarterly Report on Form 10-Q, formatted in Inline XBRL. ​ ​ ​ ​ -62- Table of Contents SIGNATURES Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized. ​ ​ ​ SOUTHERN MISSOURI BANCORP, INC. Registrant Date: November 7, 2025 /s/ Greg A. Steffens Greg A. Steffens Chairman & Chief Executive Officer (Principal Executive Officer) Date: November 7, 2025 /s/ Stefan Chkautovich Stefan Chkautovich Executive Vice President & Chief Financial Officer (Principal Financial Officer) ​ ​ Date: November 7, 2025 /s/ Jane Butler Jane Butler Principal Accounting Officer ​ ​ ​ ​ -63-