TURNER WILLIAM V - 28 Jan 2026 Form 4 Insider Report for GREAT SOUTHERN BANCORP, INC. (GSBC)

Role
Director
Signature
Matt Snyder, by Power of Attorney from William V. Turner
Issuer symbol
GSBC
Transactions as of
28 Jan 2026
Net transactions value
-$358,187
Form type
4
Filing time
29 Jan 2026, 16:30:12 UTC
Previous filing
20 Nov 2025
SEC
View on sec.gov

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
TURNER WILLIAM V Director CARE OF GREAT SOUTHERN BANK, 218 S GLENSTONE AVE, SPRINGFIELD Matt Snyder, by Power of Attorney from William V. Turner 29 Jan 2026 0001044043

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction GSBC Common stock Options Exercise $247,800 +6,000 +3% $41.30 205,112 28 Jan 2026 Direct
transaction GSBC Common stock Sale $358,187 -6,000 -2.9% $59.70 199,112 28 Jan 2026 Direct
holding GSBC Common stock 8,897 28 Jan 2026 401(k) Plan F1

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 $247,800 -6,000 -100% $41.30 0 28 Jan 2026 Common Stock 6,000 $41.30 Direct F2
holding GSBC Option to purchase 6,000 28 Jan 2026 Common Stock 6,000 $52.20 Direct F3
holding GSBC Option to purchase 13,000 28 Jan 2026 Common Stock 7,000 $55.00 Direct F4
holding GSBC Option to purchase 20,000 28 Jan 2026 Common stock 7,000 $60.15 Direct F5
holding GSBC Option to purchase 27,500 28 Jan 2026 Common stock 7,500 $41.74 Direct F6
holding GSBC Option to purchase 35,250 28 Jan 2026 Common stock 7,750 $57.98 Direct F7
holding GSBC Option to purchase 43,050 28 Jan 2026 Common stock 7,800 $61.55 Direct F8
holding GSBC Option to purchase 50,850 28 Jan 2026 Common stock 7,800 $53.22 Direct F9
holding GSBC Option to purchase 58,650 28 Jan 2026 Common stock 7,800 $61.79 Direct F10
holding GSBC Option to purchase 66,450 28 Jan 2026 Common stock 7,800 $57.29 Direct F11
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
F1 Reflects reporting person's holdings of units in Issuer's common stock fund under Issuer's 401(k) plan. Number of shares shown as beneficially owned under the plan represents the approximate equivalent number of shares of Issuer's common stock.
F2 1,500 shares vest on 10/24/2018, 10/24/2019, 10/24/2020 and 10/24/2021
F3 1,500 shares vest on 11/15/2019, 11/15/2020, 11/15/2021 and 11/15/2022
F4 1,750 shares vest on 11/28/2020, 11/28/2021, 11/28/2022 and 11/28/2023
F5 1,750 shares vest on 11/20/2021, 11/20/2022, 11/20/2023 and 11/20/2024
F6 1,875 shares vest on 10/26/2022, 10/26/2023, 10/26/2024 and 10/26/2025
F7 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
F8 1,950 shares vest on 11/16/2024, 11/16/2025, 11/16/2026 and 11/16/2027
F9 1,950 shares vest on 11/15/2025, 11/15/2026, 11/15/2027 and 11/15/2028
F10 1,950 shares vest on 11/20/2026, 11/20/2027, 11/20/2028 and 11/20/2029
F11 1,950 shares vest on 11/19/2027, 11/19/2028, 11/19/2029 and 11/19/2030