GREAT SOUTHERN BANCORP, INC. - Director's Dealing 2021

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: GREAT SOUTHERN BANCORP, INC. (GSBC)
CIK: 0000854560
Period of Report: 2021-04-29

Reporting Person: Thomason Linton J (N/A)

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2021-04-29	Common stock	M	1250	$50.71	Acquired	5051	Direct
2021-04-29	Common stock	M	625	$41.3	Acquired	5676	Direct
2021-04-29	Common stock	M	1400	$52.2	Acquired	7076	Direct
2021-04-29	Common stock	M	875	$55	Acquired	7951	Direct
2021-04-29	Common stock	S	4150	$56.5989	Disposed	3801	Direct

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2021-04-29	Option to purchase	$50.71	M	1250	Disposed	2025-11-18	Common Stock (1250)	Direct
2021-04-29	Option to purchase	$41.3	M	625	Disposed	2026-10-24	Common Stock (1250)	Direct
2021-04-29	Option to purchase	$52.2	M	1400	Disposed	2027-11-15	Common Stock (2800)	Direct
2021-04-29	Option to purchase	$55	M	875	Disposed	2028-11-28	Commons stock (3500)	Direct

Security	Exercise Price	Expiration	Underlying	Shares	Ownership
Option to purchase	$60.15	2029-11-20	Common stock (3800)	8450	Direct
Option to purchase	$41.74	2030-10-26	Common stock (4500)	12950	Direct

F1: 625 shares vest on 11/18/2019 and 11/18/2020

F2: 625 shares vest on 10/24/2020 and 10/24/2021

F3: 700 shares vest on 11/15/2019, 11/15/2020, 11/15/2021 and 11/15/2022

F4: 875 shares vest on 11/28/2020, 11/28/2021, 11/28/2022 and 11/28/2023

F5: 950 shares vest on 11/20/2021, 11/20/2022, 11/20/2023 and 11/20/2024

F6: 1,125 shares vest on 10/26/2022, 10/26/2023, 10/26/2024 and 10/26/2025