COPELAND REX A - 06 Feb 2026 Form 4 Insider Report for GREAT SOUTHERN BANCORP, INC. (GSBC)

Role
Treasurer, Senior Vice Pres of Subsidiary
Signature
Matt Snyder, by Power of Attorney from Rex A Copeland
Issuer symbol
GSBC
Transactions as of
06 Feb 2026
Net transactions value
-$114,418
Form type
4
Filing time
06 Feb 2026, 16:54:33 UTC
Previous filing
23 May 2025
SEC
View on sec.gov

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
COPELAND REX A Treasurer, Senior Vice Pres of Subsidiary CARE OF GREAT SOUTHERN BANK, 218 S. GLENSTONE AVE, SPRINGFIELD Matt Snyder, by Power of Attorney from Rex A Copeland 06 Feb 2026 0001108323

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction GSBC Common stock Options Exercise $74,216 +1,797 +7.3% $41.30 26,468 06 Feb 2026 Direct
transaction GSBC Common stock Sale $114,418 -1,797 -6.8% $63.67 24,671 06 Feb 2026 Direct

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Underlying Class Amount Exercise Price Ownership Footnotes
transaction GSBC Option to purchase Options Exercise $74,216 -1,797 -100% $41.30 0 06 Feb 2026 Common Stock 1,797 $41.30 Direct F1
holding GSBC Option to purchase 4,200 06 Feb 2026 Common Stock 4,200 $52.20 Direct F2
holding GSBC Option to purchase 8,400 06 Feb 2026 Common stock 4,200 $55.00 Direct F3
holding GSBC Option to purchase 12,600 06 Feb 2026 Common stock 4,200 $60.15 Direct F4
holding GSBC Option to purchase 17,100 06 Feb 2026 Common stock 4,500 $41.74 Direct F5
holding GSBC Option to purchase 21,850 06 Feb 2026 Common stock 4,750 $57.98 Direct F6
holding GSBC Option to purchase 26,650 06 Feb 2026 Common stock 4,800 $61.55 Direct F7
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
F1 1,050 shares vest on 10/24/2018 and 747 shares vest on 10/24/2019
F2 1,050 shares vest on 11/15/2019, 11/15/2020, 11/15/2021 and 11/15/2022
F3 1,050 shares vest on 11/28/2020, 11/28/2021, 11/28/2022 and 11/28/2023
F4 1,050 shares vest on 11/20/2021, 11/20/2022, 11/20/2023 and 11/20/2024
F5 1,125 shares vest on 10/26/2022, 10/26/2023, 10/26/2024 and 10/26/2025
F6 1,188 shares vest on 11/17/2023 and 11/17/2024 and 1,187 shares vest on 11/17/2025 and 11/17/2026
F7 1,200 shares vdst on 11/16/2024, 11/16/2025, 11/16/2026 and 11/16/2027