TURNER JOSEPH W 4

4 · GREAT SOUTHERN BANCORP, INC. · Filed Feb 24, 2026

Form 4

Period: 2026-02-23

DirectorPresident/CEO10% Owner

Transactions

Holdings

Common stock
(indirect: By Spouse)
2,478
Common stock
(indirect: By Trust)
11,378
Common stock
(indirect: By 401(k))
18,335
Common stock
(indirect: By Partnership)
369,738
Option to purchase
[F1]
Exercise: $52.20Exp: 2027-11-15→ Common Stock (6,000 underlying)
6,000
Option to purchase
[F2]
Exercise: $55.00Exp: 2028-11-28→ Common Stock (7,000 underlying)
13,000
Option to purchase
[F3]
Exercise: $60.15Exp: 2029-11-20→ Common stock (7,000 underlying)
20,000
Option to purchase
[F4]
Exercise: $41.74Exp: 2030-10-26→ Common stock (7,500 underlying)
27,500
Option to purchase
[F5]
Exercise: $57.98Exp: 2031-11-17→ Common stock (7,750 underlying)
35,250
Option to purchase
[F6]
Exercise: $61.55Exp: 2032-11-16→ Common stock (7,800 underlying)
43,050
Option to purchase
[F7]
Exercise: $53.22Exp: 2033-11-15→ Common Stock (7,800 underlying)
50,850
Option to purchase
[F8]
Exercise: $61.79Exp: 2034-11-20→ Common stock (7,800 underlying)
58,650
Option to purchase
[F9]
Exercise: $57.29Exp: 2035-11-19→ Common stock (7,800 underlying)
66,450

Footnotes (9)

[F1]1,500 shares vest on 11/15/2019, 11/15/2020, 11/15/2021 and 11/15/2022
[F2]1,750 shares vest on 11/28/2020, 11/28/2021, 11/28/2022 and 11/28/2023
[F3]1,750 shares vest on 11/20/2021, 11/20/2022, 11/20/2023 and 11/20/2024
[F4]1,875 shares vest on 10/26/2022, 10/26/2023, 10/26/2024 and 10/26/2025
[F5]1,938 shares vest on 11/17/2023 and 11/17/2024, and 1,937 shares vest on 11/17/2025 and 11/17/2026
[F6]1,950 shares vest on 11/16/2024, 11/16/2025, 11/16/2026 and 11/16/2027
[F7]1,950 shares vest on 11/15/2025, 11/15/2026, 11/15/2027 and 11/15/2028
[F8]1,950 shares vest on 11/20/2026, 11/20/2027, 11/20/2028 and 11/20/2029
[F9]1,950 shares vest on 11/19/2027, 11/19/2028, 11/19/2029 and 11/19/2030

Signature

Matt Snyder, by Power of Attorney from Joseph W. Turner|2026-02-24

Documents

1 file