GSBC · Current Report (Form 8-K) · Filed March 18, 2026

Great Southern Bancorp Inc — 8-K exhibit

exh_991.htm

Great Southern Bancorp Inc on Boardroom Alpha

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EXHIBIT 99.1

Great Southern Bancorp, Inc. announces quarterly dividend of $0.43 per common share

SPRINGFIELD, Mo., March 18, 2026 (GLOBE NEWSWIRE) -- The Board of Directors of Great Southern Bancorp, Inc. (NASDAQ:GSBC), the holding company for Great Southern Bank, declared a $0.43 per common share dividend for the first quarter of the calendar year ending December 31, 2026.

The dividend will be payable on April 14, 2026, to stockholders of record on March 30, 2026. This dividend represents the 145^th consecutive quarterly dividend paid by the Company to common stockholders.

About Great Southern Bank

Headquartered in Springfield, Missouri, Great Southern offers a broad range of banking services to customers. The Company operates 88 retail banking centers in Missouri, Iowa, Kansas, Minnesota, Arkansas and Nebraska and commercial lending offices in Atlanta, Charlotte, Chicago, Dallas, Denver, Omaha, and Phoenix. The common stock of Great Southern Bancorp, Inc. is listed on the Nasdaq Global Select Market under the symbol “GSBC.”

CONTACT:

Kincade Ayers,
Investor Relations,
(616) 233-0500
GSBC@lambert.com

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