<ACCESSION-NUMBER>0001144204-18-038938 <TYPE>8-K <PUBLIC-DOCUMENT-COUNT>17 <PERIOD>20180719 <ITEMS>7.01 <FILING-DATE>20180719 <DATE-OF-FILING-DATE-CHANGE>20180719 <FILER> <COMPANY-DATA> <CONFORMED-NAME>GREAT SOUTHERN BANCORP, INC. <CIK>0000854560 <ASSIGNED-SIC>6022 <IRS-NUMBER>431524856 <STATE-OF-INCORPORATION>MD <FISCAL-YEAR-END>1231 </COMPANY-DATA> <FILING-VALUES> <FORM-TYPE>8-K <ACT>34 <FILE-NUMBER>000-18082 <FILM-NUMBER>18959863 </FILING-VALUES> <BUSINESS-ADDRESS> <STREET1>1451 E BATTLEFIELD <CITY>SPRINGFIELD <STATE>MO <ZIP>65804 <PHONE>417-887-4400 </BUSINESS-ADDRESS> <MAIL-ADDRESS> <STREET1>P O BOX 9009 <CITY>SPRINGFIELD <STATE>MO <ZIP>65808-9009 </MAIL-ADDRESS> <FORMER-COMPANY> <FORMER-CONFORMED-NAME>GREAT SOUTHERN BANCORP INC <DATE-CHANGED>19920703 </FORMER-COMPANY> </FILER>