GREAT SOUTHERN BANCORP, INC.

(Exact name of registrant as specified in its charter)

Maryland		000-18082		43-1524856
(State or other jurisdiction of incorporation)		(Commission File Number)		(IRS Employer Identification No.)

1451 East Battlefield, Springfield, Missouri		65804
(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:

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 8.01 Other Events.

On January 20, 2021, the Board of Directors of Great Southern Bancorp, Inc. (the “Company”), the holding company for Great Southern Bank (the “Bank”), was notified that Linton J. Thomason, Vice President and Chief Information Officer of the Bank, intends to retire at the end of 2021. Mr. Thomason is primarily responsible for information services and technology for the Bank.

Mr. Thomason announced his intention to retire well in advance to assure an orderly leadership transition over the next year. A succession plan is in place.

With more than 40 years in the banking industry, Mr. Thomason joined the Bank in 1997. He has been an integral part of the Bank’s growth and success for the last 24 years. During that time period, the Bank has grown from approximately $700 million in assets with operations primarily in the southwest Missouri region, to approximately $5.5 billion in assets and offices in 11 states, as of December 31, 2020.

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.

Date:	January 20, 2021	By:	/s/ Joseph W. Turner
			Joseph W. Turner, President
			and Chief Executive Officer