GREAT SOUTHERN BANCORP, INC.

Great Southern Bancorp, Inc. announced that its Board of Directors declared a quarterly cash dividend of $0.43 per common share. This dividend, payable on July 14, 2026, to stockholders of record as of June 29, 2026, represents the company's 146th consecutive quarterly dividend.

Great Southern Bancorp, Inc. held its 2026 Annual Meeting of Stockholders on May 13, 2026. During the meeting, stockholders approved the 2026 Omnibus Incentive Plan and the advisory vote on executive compensation. Additionally, four directors were elected for three-year terms, and Forvis Mazars, LLP was ratified as the independent registered public accounting firm for the fiscal year ending December 31, 2026.

Great Southern Bancorp, Inc. announced its preliminary financial results for the first quarter ended March 31, 2026. The company issued a press release on April 15, 2026, detailing these unaudited financial results. This information was filed as an exhibit to a current report on Form 8-K, providing investors with an early look at the company's performance for the recent quarter.

Great Southern Bancorp, Inc. reported preliminary diluted earnings per common share of $1.58 for Q1 2026, up from $1.47 in Q1 2025, with net income reaching $17.5 million. The company's annualized net interest margin improved to 3.71%, despite a 2.0% decrease in net interest income to $48.3 million. Total net loans increased by 2.3% to $4.46 billion, while non-performing assets rose to $10.1 million.