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[Form 4] GREAT SOUTHERN BANCORP, INC. Insider Trading Activity

Filing Impact
(High)
Filing Sentiment
(Positive)
Form Type
4

Rhea-AI Filing Summary

Great Southern Bancorp director William V. Turner reported an option exercise and stock sale on January 28, 2026. He exercised options for 6,000 shares of common stock at $41.30 per share and then sold 6,000 shares at an average price of $59.6979 per share.

After these transactions, Turner directly owned 199,112 shares of Great Southern Bancorp common stock and also held an indirect interest in approximately 8,897 shares through the company’s 401(k) plan. The filing also lists multiple remaining option awards with various exercise prices and future vesting schedules.

Positive

  • None.

Negative

  • None.
Insider TURNER WILLIAM V
Role Director
Sold 6,000 shs ($358K)
Type Security Shares Price Value
Exercise Option to purchase 6,000 $41.30 $248K
Exercise Common stock 6,000 $41.30 $248K
Sale Common stock 6,000 $59.6979 $358K
holding Option to purchase -- -- --
holding Option to purchase -- -- --
holding Option to purchase -- -- --
holding Option to purchase -- -- --
holding Option to purchase -- -- --
holding Option to purchase -- -- --
holding Option to purchase -- -- --
holding Option to purchase -- -- --
holding Option to purchase -- -- --
holding Common stock -- -- --
Holdings After Transaction: Option to purchase — 0 shares (Direct); Common stock — 205,112 shares (Direct); Common stock — 8,897 shares (Indirect, 401(k) Plan)
Footnotes (1)
  1. 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. 1,500 shares vest on 10/24/2018, 10/24/2019, 10/24/2020 and 10/24/2021 1,500 shares vest on 11/15/2019, 11/15/2020, 11/15/2021 and 11/15/2022 1,750 shares vest on 11/28/2020, 11/28/2021, 11/28/2022 and 11/28/2023 1,750 shares vest on 11/20/2021, 11/20/2022, 11/20/2023 and 11/20/2024 1,875 shares vest on 10/26/2022, 10/26/2023, 10/26/2024 and 10/26/2025 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 1,950 shares vest on 11/16/2024, 11/16/2025, 11/16/2026 and 11/16/2027 1,950 shares vest on 11/15/2025, 11/15/2026, 11/15/2027 and 11/15/2028 1,950 shares vest on 11/20/2026, 11/20/2027, 11/20/2028 and 11/20/2029 1,950 shares vest on 11/19/2027, 11/19/2028, 11/19/2029 and 11/19/2030
Form 4 Insider Transactions: What Each Field Means →
SEC Form 4
FORM 4 UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940
OMB APPROVAL
OMB Number: 3235-0287
Estimated average burden
hours per response: 0.5
Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).
Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.
1. Name and Address of Reporting Person*
TURNER WILLIAM V
(Last) (First) (Middle)
CARE OF GREAT SOUTHERN BANK
218 S GLENSTONE AVE
(Street)
SPRINGFIELD MO 65802
(City) (State) (Zip)
2. Issuer Name and Ticker or Trading Symbol
GREAT SOUTHERN BANCORP, INC. [ GSBC ] 		5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
X Director 10% Owner
Officer (give title below) Other (specify below)
3. Date of Earliest Transaction (Month/Day/Year)
01/28/2026
4. If Amendment, Date of Original Filed (Month/Day/Year)
 6. Individual or Joint/Group Filing (Check Applicable Line)
X Form filed by One Reporting Person
Form filed by More than One Reporting Person
Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3) 2. Transaction Date (Month/Day/Year) 2A. Deemed Execution Date, if any (Month/Day/Year) 3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4)
Code V Amount (A) or (D) Price
Common stock 01/28/2026 M 6,000 A $41.3 205,112 D
Common stock 01/28/2026 S 6,000 D $59.6979 199,112 D
Common stock 8,897(1) I 401(k) Plan
Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3) 2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (Month/Day/Year) 3A. Deemed Execution Date, if any (Month/Day/Year) 4. Transaction Code (Instr. 8) 5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 6. Date Exercisable and Expiration Date (Month/Day/Year) 7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4) 8. Price of Derivative Security (Instr. 5) 9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4) 10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 11. Nature of Indirect Beneficial Ownership (Instr. 4)
Code V (A) (D) Date Exercisable Expiration Date Title Amount or Number of Shares
Option to purchase $41.3 01/28/2026 M 6,000 (2) 10/24/2026 Common Stock 6,000 $41.3 0 D
Option to purchase $52.2 (3) 11/15/2027 Common Stock 6,000 6,000 D
Option to purchase $55 (4) 11/28/2028 Common Stock 7,000 13,000 D
Option to purchase $60.15 (5) 11/20/2029 Common stock 7,000 20,000 D
Option to purchase $41.74 (6) 10/26/2030 Common stock 7,500 27,500 D
Option to purchase $57.98 (7) 11/17/2031 Common stock 7,750 35,250 D
Option to purchase $61.55 (8) 11/16/2032 Common stock 7,800 43,050 D
Option to purchase $53.22 (9) 11/15/2033 Common stock 7,800 50,850 D
Option to purchase $61.79 (10) 11/20/2034 Common stock 7,800 58,650 D
Option to purchase $57.29 (11) 11/19/2035 Common stock 7,800 66,450 D
Explanation of Responses:
1. 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.
2. 1,500 shares vest on 10/24/2018, 10/24/2019, 10/24/2020 and 10/24/2021
3. 1,500 shares vest on 11/15/2019, 11/15/2020, 11/15/2021 and 11/15/2022
4. 1,750 shares vest on 11/28/2020, 11/28/2021, 11/28/2022 and 11/28/2023
5. 1,750 shares vest on 11/20/2021, 11/20/2022, 11/20/2023 and 11/20/2024
6. 1,875 shares vest on 10/26/2022, 10/26/2023, 10/26/2024 and 10/26/2025
7. 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
8. 1,950 shares vest on 11/16/2024, 11/16/2025, 11/16/2026 and 11/16/2027
9. 1,950 shares vest on 11/15/2025, 11/15/2026, 11/15/2027 and 11/15/2028
10. 1,950 shares vest on 11/20/2026, 11/20/2027, 11/20/2028 and 11/20/2029
11. 1,950 shares vest on 11/19/2027, 11/19/2028, 11/19/2029 and 11/19/2030
Remarks:
Matt Snyder, by Power of Attorney from William V. Turner 01/29/2026
** Signature of Reporting Person Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.

Source: View Original Filing on SEC EDGAR