MARK MAPLES plan to sell securities of GREAT SOUTHERN BANCORP, INC. under Form 144

MARK MAPLES filed Form 144 to notify SEC of plan to sell 2387 units of GREAT SOUTHERN BANCORP, INC. securities around 2026-05-01, with aggregate market value of $164,595.59. The total outstanding units is 10963133.0. The amount planned to be sold represents 0.02% of total outstanding units;