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

Filing Impact
(Neutral)
Filing Sentiment
(Neutral)
Form Type
4

Rhea-AI Filing Summary

Great Southern Bancorp, Inc. (GSBC) reported an insider equity update for a vice president of a subsidiary. The reporting person beneficially owns 1,790 shares of Great Southern Bancorp common stock directly.

On 11/19/2025, the insider received several stock option grants to purchase common stock at an exercise price of $57.29 per share. These options include multiple tranches of 1,200 options each, with vesting and exercisability dates ranging from 11/19/2027 through 11/19/2030 and expiration on 11/19/2035. Following the reported transactions, the insider holds 41,050 derivative securities (stock options) directly.

Positive

  • None.

Negative

  • None.
Insider Bugh John M
Role Insider
Type Security Shares Price Value
Grant/Award Option to purchase 1,200 $57.29 $69K
Grant/Award Option to purchase 1,200 $57.29 $69K
Grant/Award Option to purchase 1,200 $57.29 $69K
Grant/Award Option to purchase 1,200 $57.29 $69K
holding Common stock -- -- --
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 — 45,750 shares (Direct); Common stock — 4,290 shares (Direct)
Footnotes (9)
  1. F1. 625 shares vest on 10/24/2018, 10/24/2019, 10/24/2020 and 10/24/2021
  2. F2. 700 shares vest on 11/15/2019, 11/15/2020, 11/15/2021 and 11/15/2022
  3. F3. 875 shares vest on 11/28/2020, 11/28/2021, 11/28/2022 and 11/28/2023
  4. F4. 950 shares vest on 11/20/2021, 11/20/2022, 11/20/2023 and 11/20/2024
  5. F5. 1,125 shares vest on 10/26/2022, 10/26/2023, 10/26/2024 and 10/26/2025
  6. 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
  7. F7. 1,200 shares vest on 11/16/2024, 11/16/2025, 11/16/2026 and 11/16/2027
  8. F8. 1,200 shares vest on 11/15/2025, 11/15/2026, 11/15/2027 and 11/15/2028
  9. F9. 1,200 shares vest on 11/20/2026, 11/20/2027, 11/20/2028 and 11/20/2029

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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*
Bugh John M
(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)
Director 10% Owner
Officer (give title below) X Other (specify below)
Vice President of Subsidiary
3. Date of Earliest Transaction (Month/Day/Year)
11/19/2025
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 1,790 D
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 $57.29 11/19/2025 A 1,200 11/19/2027 11/19/2035 Common stock 1,200 $57.29 1,200 D
Option to purchase $57.29 11/19/2025 A 1,200 11/19/2028 11/19/2035 Common stock 1,200 $57.29 2,400 D
Option to purchase $57.29 11/19/2025 A 1,200 11/19/2029 11/19/2035 Common stock 1,200 $57.29 3,600 D
Option to purchase $57.29 11/19/2025 A 1,200 11/19/2030 11/19/2035 Common stock 1,200 $57.29 4,800 D
Common stock $41.3 (1) 10/24/2026 Common stock 2,500 7,300 D
Option to purchase $52.2 (2) 11/15/2027 Common stock 2,800 10,100 D
Option to purchase $55 (3) 11/28/2028 Common stock 3,500 13,600 D
Option to purchase $60.15 (4) 11/20/2029 Common stock 3,800 17,400 D
Option to purchase $41.74 (5) 10/26/2030 Common stock 4,500 21,900 D
Option to purchase $57.98 (6) 11/17/2031 Common stock 4,750 26,650 D
Option to purchase $61.55 (7) 11/16/2032 Common stock 4,800 31,450 D
Option to purchase $53.22 (8) 11/15/2033 Common stock 4,800 36,250 D
Option to purchase $61.79 (9) 11/20/2034 Common stock 4,800 41,050 D
Explanation of Responses:
1. 625 shares vest on 10/24/2018, 10/24/2019, 10/24/2020 and 10/24/2021
2. 700 shares vest on 11/15/2019, 11/15/2020, 11/15/2021 and 11/15/2022
3. 875 shares vest on 11/28/2020, 11/28/2021, 11/28/2022 and 11/28/2023
4. 950 shares vest on 11/20/2021, 11/20/2022, 11/20/2023 and 11/20/2024
5. 1,125 shares vest on 10/26/2022, 10/26/2023, 10/26/2024 and 10/26/2025
6. 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
7. 1,200 shares vest on 11/16/2024, 11/16/2025, 11/16/2026 and 11/16/2027
8. 1,200 shares vest on 11/15/2025, 11/15/2026, 11/15/2027 and 11/15/2028
9. 1,200 shares vest on 11/20/2026, 11/20/2027, 11/20/2028 and 11/20/2029
Remarks:
Matt Snyder, by Power of Attorney from John M. Bugh 11/20/2025
** 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