Mark A. Maples - 25 Nov 2025 Form 4 Insider Report for GREAT SOUTHERN BANCORP, INC. (GSBC)

Role
Vice President of Subsidiary
Signature
Matt Snyder, by Power of Attorney from Mark A Maples
Issuer symbol
GSBC
Transactions as of
25 Nov 2025
Net transactions value
-$86,899
Form type
4
Filing time
01 Dec 2025, 10:59:41 UTC
Previous filing
20 Nov 2025
SEC
View on sec.gov

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
Maples Mark A Vice President of Subsidiary CARE OF GREAT SOUTHERN BANK, 218 S. GLENSTONE AVE, SPRINGFIELD Matt Snyder, by Power of Attorney from Mark A Maples 01 Dec 2025 0001868939

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction GSBC Common Stock Options Exercise $10,435 +250 $41.74 250 25 Nov 2025 Direct
transaction GSBC Common Stock Options Exercise $63,864 +1,200 +480% $53.22 1,450 25 Nov 2025 Direct
transaction GSBC Common Stock Sale $86,899 -1,450 -100% $59.93 0 25 Nov 2025 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 $10,435 -250 -100% $41.74 0 25 Nov 2025 Common stock 250 $41.74 Direct F1
transaction GSBC Option to purchase Options Exercise $63,864 -1,200 -11% $53.22 9,574 25 Nov 2025 Common stock 4,800 $53.22 Direct F4
holding GSBC Option to purchase 2,374 25 Nov 2025 Common stock 2,374 $57.98 Direct F2
holding GSBC Option to purchase 5,974 25 Nov 2025 Common stock 3,600 $61.55 Direct F3
holding GSBC Option to purchase 14,374 25 Nov 2025 Common stock 4,800 $61.79 Direct F5
holding GSBC Option to purchase 19,174 25 Nov 2025 Common stock 4,800 $57.29 Direct F6
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
F1 250 shares vest on 10/26/2025
F2 1,187 shares vest on 11/17/2025 and 11/17/2026
F3 1,200 shares vest on 11/16/2025, 11/16/2026 and 11/16/2027
F4 1,200 shares vest on 11/15/2025, 11/15/2026, 11/15/2027 and 11/15/2028
F5 1,200 shares vest on 11/20/2026, 11/20/2027, 11/20/2028 and 11/20/2029
F6 1,200 shares vest on 11/19/2027, 11/19/2028, 11/19/2029 and 11/19/2030