1 unchanged sentence
Trading Plans
−Removed: During the quarter ended March 31, 2026, 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.
+Added: During the three months ended June 30, 2026, 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.
Plan of acquisition, reorganization, arrangement, liquidation, or succession
65 unchanged sentences
333-265683) filed on June 17, 2022 is incorporated herein by reference as Exhibit 10.20.*
+Added: The Registrant’s 2026 Omnibus Incentive Plan previously filed with the Commission (File No.
+Added: 000-18082) as Appendix A to the Registrant’s Definitive Proxy Statement on Schedule 14A filed on March 31, 2026, is incorporated herein by reference as Exhibit 10.21.*
+Added: The form of incentive stock option award agreement under the Registrant’s 2026 Omnibus Incentive Plan previously filed with the Commission as Exhibit 99.2 to the Registrant’s Registration Statement on Form S-8 (File No.
+Added: 333-296748) filed on June 12, 2026, is incorporated herein by reference as Exhibit 10.22.*
+Added: The form of non-qualified stock option award agreement under the Registrant’s 2026 Omnibus Incentive Plan previously filed with the Commission as Exhibit 99.3 to the Registrant’s Registration Statement on Form S-8 (File No.
+Added: 333-296748) filed on June 12, 2026, is incorporated herein by reference as Exhibit 10.23.*
The form of Executive Officer Stock Option Alternative Cash Payment Election Form previously filed with the Commission as Exhibit 10.21 to the Registrant’s Quarterly Report on Form 10-Q for the quarterly period ended September 30, 2023, is incorporated herein by reference as Exhibit 10.24.*
15 unchanged sentences
Attached as Exhibit 101 are the following financial statements from the Great Southern Bancorp, Inc.
−Removed: Quarterly Report on Form 10-Q for the quarter ended March 31, 2026, formatted in Extensive Business Reporting Language (XBRL):
+Added: Quarterly Report on Form 10-Q for the quarter ended June 30, 2026, formatted in Extensive Business Reporting Language (XBRL):
(i) consolidated statements of financial condition, (ii) consolidated statements of income, (iii) consolidated statements of comprehensive income, (iv) consolidated statements of cash flows and (v) notes to consolidated financial statements.
3 unchanged sentences
Great Southern Bancorp, Inc.
+Added: August 7, 2026
/s/ Joseph W.
1 unchanged sentence
(Principal Executive Officer)
+Added: August 7, 2026
(Principal Financial and Accounting Officer)
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.