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

GSBC director exercises options for 7,000 shares

GREAT SOUTHERN BANCORP, INC. director Kevin R. Ausburn reported exercising stock options to acquire additional common shares.

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

Rhea-AI Filing Summary

GREAT SOUTHERN BANCORP, INC. director Kevin R. Ausburn reported exercising stock options to acquire additional common shares. On February 23, 2026, he exercised options for 5,000 shares at $51.40 per share and 2,000 shares at $52.20 per share, receiving the same number of common shares.

After these derivative exercises, Ausburn held 8,300 shares of common stock directly and retained 2,000 options to purchase shares directly. Footnotes describe a long-term vesting schedule for multiple option grants through 2030, illustrating how these awards become exercisable over time.

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Insider Ausburn Kevin R
Role Director
Type Security Shares Price Value
Exercise Option to purchase 5,000 $51.40 $257K
Exercise Option to purchase 2,000 $52.20 $104K
Exercise Common Stock 5,000 $51.40 $257K
Exercise Common Stock 2,000 $52.20 $104K
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 -- -- --
Holdings After Transaction: Option to purchase — 16,000 contracts (Direct); Common Stock — 8,300 shares (Direct)
Footnotes (10)
  1. F1. 1,250 shares vest on 03/15/2019, 03/15/2020, 03/15/2021 and 03/15/2022
  2. F2. 500 shares vest on 11/15/2019, 11/15/2020, 11/15/2021 and 11/15/2022
  3. F3. 500 shares vest on 11/28/2020, 11/28/2021, 11/28/2022 and 11/28/2023
  4. F4. 500 shares vest on 11/20/2021, 11/20/2022, 11/20/2023 and 11/20/2024
  5. F5. 500 shares vest on 10/26/2022, 10/26/2023, 10/26/2024 and 10/26/2025
  6. F6. 500 shares vest on 11/17/2023, 11/17/2024, 11/17/2025 and 11/17/2026
  7. F7. 500 shares vest on 11/16/2024, 11/16/2025, 11/16/2026 and 11/16/2027
  8. F8. 500 shares vest on 11/15/2025, 11/15/2026, 11/15/2027 and 11/15/2028
  9. F9. 500 shares vest on 11/20/2026, 11/20/2027, 11/20/2028 and 11/20/2029
  10. F10. 500 shares vest on 11/19/2027, 11/19/2028, 11/19/2029 and 11/19/2030

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What did Kevin R. Ausburn report in this GSBC Form 4 filing?
Kevin R. Ausburn reported exercising stock options to acquire GREAT SOUTHERN BANCORP common shares. He converted derivative option awards into 7,000 common shares on February 23, 2026, and updated his remaining direct holdings of both common stock and options accordingly.

How many GREAT SOUTHERN BANCORP (GSBC) shares did Ausburn acquire?
Ausburn acquired 7,000 GREAT SOUTHERN BANCORP common shares through option exercises. He exercised 5,000 options at $51.40 per share and 2,000 options at $52.20 per share, with each option converting into one share of common stock on the same date.

What are Kevin Ausburn’s GSBC holdings after the reported transactions?
After the reported transactions, Kevin Ausburn directly holds 8,300 shares of GREAT SOUTHERN BANCORP common stock. He also directly holds 2,000 options to purchase shares, as reflected in the holding entries that show 2,000 derivative securities remaining following the exercises.

Were there any share sales reported in this GSBC Form 4?
No share sales were reported in this Form 4. All coded transactions are option exercises classified as derivative security conversions, resulting in the acquisition of common shares. The summary shows acquire-type transactions only, with no sell transactions recorded for this date.

What do the vesting footnotes in the GSBC Form 4 indicate?
The footnotes describe vesting schedules for option grants, typically in annual 500- or 1,250-share installments. They list specific vesting dates from 2019 through 2030, showing when portions of various option awards become exercisable, supporting the long-term structure of Ausburn’s equity compensation.

Is Kevin Ausburn an insider at GREAT SOUTHERN BANCORP (GSBC)?
Yes. The Form 4 identifies Kevin R. Ausburn as a director of GREAT SOUTHERN BANCORP, INC. Directors are considered insiders for reporting purposes and must disclose transactions in company securities, including option exercises and resulting changes in common stock and derivative holdings.

AI-generated analysis. How Rhea-AI works. Not financial advice.

Form 4 Insider Transactions: What Each Field Means →
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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*
Ausburn Kevin R
(Last) (First) (Middle)
CARE OF GREAT SOUTHERN BANK
218 SOUTH GLENSTONE AVENUE
(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)
02/23/2026
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 02/23/2026 M 5,000 A $51.4 6,300 D
Common Stock 02/23/2026 M 2,000 A $52.2 8,300 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 $51.4 02/23/2026 M 5,000 (1) 03/15/2027 Common Stock 5,000 $51.4 0 D
Option to purchase $52.2 02/23/2026 M 2,000 (2) 11/15/2027 Common Stock 2,000 $52.2 0 D
Option to purchase $55 (3) 11/28/2028 Common stock 2,000 2,000 D
Option to purchase $60.15 (4) 11/20/2029 Common stock 2,000 4,000 D
Option to purchase $41.74 (5) 10/26/2030 Common stock 2,000 6,000 D
Option to purchase $57.98 (6) 11/17/2031 Common stock 2,000 8,000 D
Option to purchase $61.55 (7) 11/16/2032 Common stock 2,000 10,000 D
Option to purchase $53.22 (8) 11/15/2033 Common stock 2,000 12,000 D
Option to purchase $61.79 (9) 11/20/2034 Common stock 2,000 14,000 D
Option to purchase $57.29 (10) 11/19/2035 Common stock 2,000 16,000 D
Explanation of Responses:
1. 1,250 shares vest on 03/15/2019, 03/15/2020, 03/15/2021 and 03/15/2022
2. 500 shares vest on 11/15/2019, 11/15/2020, 11/15/2021 and 11/15/2022
3. 500 shares vest on 11/28/2020, 11/28/2021, 11/28/2022 and 11/28/2023
4. 500 shares vest on 11/20/2021, 11/20/2022, 11/20/2023 and 11/20/2024
5. 500 shares vest on 10/26/2022, 10/26/2023, 10/26/2024 and 10/26/2025
6. 500 shares vest on 11/17/2023, 11/17/2024, 11/17/2025 and 11/17/2026
7. 500 shares vest on 11/16/2024, 11/16/2025, 11/16/2026 and 11/16/2027
8. 500 shares vest on 11/15/2025, 11/15/2026, 11/15/2027 and 11/15/2028
9. 500 shares vest on 11/20/2026, 11/20/2027, 11/20/2028 and 11/20/2029
10. 500 shares vest on 11/19/2027, 11/19/2028, 11/19/2029 and 11/19/2030
Remarks:
Matt Snyder, by Power of Attorney from Kevin R. Ausburn 02/24/2026
** 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

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