# EDGAR Filing Document

**Accession Number:** 0000854560
**File Stem:** 0001171843-26-003464
**Filing Date:** 2026-5
**Character Count:** 7262
**Document Hash:** 81e774281b5fd35d23547881ba9a7d22
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001171843-26-003464.hdr.sgml**: 20260515

**ACCESSION NUMBER**: 0001171843-26-003464

**CONFORMED SUBMISSION TYPE**: 8-K

**PUBLIC DOCUMENT COUNT**: 11

**CONFORMED PERIOD OF REPORT**: 20260513

**ITEM INFORMATION**: Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers: Compensatory Arrangements of Certain Officers

**ITEM INFORMATION**: Submission of Matters to a Vote of Security Holders

**FILED AS OF DATE**: 20260515

**DATE AS OF CHANGE**: 20260515

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** GREAT SOUTHERN BANCORP, INC.
- **CENTRAL INDEX KEY:** 0000854560
- **STANDARD INDUSTRIAL CLASSIFICATION:** STATE COMMERCIAL BANKS [6022]
- **ORGANIZATION NAME:** 02 Finance
- **EIN:** 431524856
- **STATE OF INCORPORATION:** MD
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** 8-K
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 000-18082
- **FILM NUMBER:** 26984290

**BUSINESS ADDRESS:**
- **STREET 1:** 218 S GLENSTONE AVE
- **CITY:** SPRINGFIELD
- **STATE:** MO
- **ZIP:** 65802
- **BUSINESS PHONE:** 417-887-4400

**MAIL ADDRESS:**
- **STREET 1:** P O BOX 9009
- **CITY:** SPRINGFIELD
- **STATE:** MO
- **ZIP:** 65808-9009

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** GREAT SOUTHERN BANCORP INC
- **DATE OF NAME CHANGE:** 19920703

?xml version='1.0' encoding='ASCII'?

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

**FORM 8-K**

CURRENT REPORT

Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934

Date of Report (Date of earliest event reported)

May 13, 2026

GREAT SOUTHERN BANCORP, INC.

(Exact name of registrant as specified in its charter)

<u>Maryland</u> <u>0-18082</u> <u>43-1524856</u> <br> (State or other jurisdiction of incorporation) (Commission File Number) (IRS Employer Identification No.)

<u>1451 East Battlefield, Springfield, Missouri</u> <u>65804</u> <br> (Address of principal executive offices) (Zip Code)

Registrant's telephone number, including area code: (417) 887-4400

N/A

(Former name or former address, if changed since last report)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

☐ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

☐ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

☐ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

☐ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Securities registered pursuant to Section 12(b) of the Act:

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| | | |
|:---|:---|:---|
| **Title of each class** | **Trading Symbol(s)** | **Name of each exchange on which registered** |
| Common Stock, par value $0.01 per share | GSBC | The NASDAQ Stock Market LLC |

---

Indicate by check mark whether the registrant is an emerging growth company as deﬁned in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).

Emerging growth company ☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised ﬁnancial accounting standards provided pursuant to Section 13(a) of the Exchange Act.☐

**Item 5.02 Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers.**

As noted under Item 5.07 of this Current Report on Form 8-K, at the 2026 Annual Meeting of Stockholders (the "2026 Annual Meeting") of Great Southern Bancorp, Inc. ("Bancorp") held on May 13, 2026, Bancorp's stockholders approved Bancorp's 2026 Omnibus Incentive Plan (the "Plan"). A description of the Plan is contained in Bancorp's definitive proxy statement for the 2026 Annual Meeting filed with the Securities and Exchange Commission on March 31, 2026 under the heading "Proposal III. Approval of the 2026 Omnibus Incentive Plan" and is incorporated herein by reference, and a copy of the Plan is attached to that proxy statement as Appendix A and also is incorporated herein by reference.

**Item 5.07 Submission of Matters to a Vote of Security Holders.**

On May 13, 2026, Bancorp held its 2026 Annual Meeting. A quorum was present and the results of the meeting, which exclude shares beneficially owned in excess of the 10% voting limitation in Bancorp's charter, are as follows:

1) Election of four directors, each for a term of three years:

---

| | | | |
|:---|:---|:---|:---|
| | Number of Shares | Number of Shares | Number of Shares |
| Nominee | Votes For | Votes Withheld | Broker Non-Votes |
| Kevin R. Ausburn | &nbsp;&nbsp;&nbsp;&nbsp;7,368,133 | &nbsp;&nbsp;&nbsp;&nbsp;201,789 | 1194888 |
| Amelia A. Counts | &nbsp;&nbsp;&nbsp;&nbsp;6,903,985 | &nbsp;&nbsp;&nbsp;&nbsp;665,937 | 1194888 |
| Steven D. Edwards | &nbsp;&nbsp;&nbsp;&nbsp;7,432,055 | &nbsp;&nbsp;&nbsp;&nbsp;137,867 | 1194888 |
| Douglas M. Pitt | &nbsp;&nbsp;&nbsp;&nbsp;6,319,935 | 1249987 | 1194888 |

---

2) Advisory (non-binding) vote on executive compensation:

---

| | | | |
|:---|:---|:---|:---|
| Number of Shares | Number of Shares | Number of Shares | Number of Shares |
| Votes For | Votes Against | Abstentions | Broker Non-Votes |
| 7402686 | 150059 | 17177 | 1194888 |

---

The vote required to approve this proposal was the affirmative vote of a majority of the votes cast on the proposal. Accordingly, this proposal was approved.

3) Approval of the Great Southern Bancorp, Inc. 2026 Omnibus Incentive Plan:

---

| | | | |
|:---|:---|:---|:---|
| Number of Shares | Number of Shares | Number of Shares | Number of Shares |
| Votes For | Votes Against | Abstentions | Broker Non-Votes |
| 7392465 | 170118 | 7339 | 1194888 |

---

The vote required to approve this proposal was the affirmative vote of a majority of the votes cast on the proposal. Accordingly, this proposal was approved.

4) Ratification of the appointment of Forvis Mazars, LLP as Bancorp's independent registered public accounting firm for the fiscal year ending December 31, 2026:

---

| | | | |
|:---|:---|:---|:---|
| Number of Shares | Number of Shares | Number of Shares | Number of Shares |
| Votes For | Votes Against | Abstentions | Broker Non-Votes |
| 8616782 | 145618 | 2410 | --- |

---

The vote required to approve this proposal was the affirmative vote of a majority of the votes cast on the proposal. Accordingly, this proposal was approved.

**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 hereunto duly authorized.

---

| | | | |
|:---|:---|:---|:---|
|  |  | **GREAT SOUTHERN BANCORP, INC.** | **GREAT SOUTHERN BANCORP, INC.** |
| Date: | May 15, 2026 | By: | /s/ Joseph W. Turner&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; |
|  |  |  | Joseph W. Turner, President |
|  |  |  | and Chief Executive Officer |

---