GSBC insider: 1,750 exercised at $50.71, 1,750 sold at $57.7194

Q: What insider transaction was reported for GSBC?

An option exercise of 1,750 shares at $50.71 and a sale of 1,750 shares at $57.7194 on 11/10/2025.

Q: How many GSBC shares does the insider own after the transactions?

The reporting person directly owns 1,790 shares following the reported transactions.

Q: What is the insider’s relationship to GSBC?

The reporting person is an Officer, specifically a Vice President of a subsidiary.

Q: Was the exercised option fully depleted?

Yes. The option covering 1,750 shares at $50.71 shows 0 derivative securities remaining afterward.

Great Southern Bancorp (GSBC) insider activity: a company subsidiary vice president reported an option exercise and matching sale on 11/10/2025.

Filing Impact

(Moderate)

Filing Sentiment

(Positive)

Form Type

Rhea-AI Filing Summary

Great Southern Bancorp (GSBC) insider activity: a company subsidiary vice president reported an option exercise and matching sale on 11/10/2025.

The reporting person exercised 1,750 shares at $50.71 per share (code M) and sold 1,750 shares at a weighted average price of $57.7194 (code S). Following these transactions, 1,790 shares of common stock were beneficially owned directly.

Derivative positions disclosed include multiple outstanding stock options with exercise prices ranging from $41.3 to $61.79 and expirations from 10/24/2026 to 11/20/2034, after one option for 1,750 shares at $50.71 was fully exercised.

Insider Trade Summary

Exercise and Sale: 1,750 shares ($12K approx. pre-tax spread)

Exercise and Sale 12 txns

Insider Bugh John M

Role Insider

Sold 1,750 shs ($101K)

Approx. gross sale proceeds $101K

Approx. exercise cost $89K

Approx. pre-tax spread $12K

Type	Security	Shares	Price	Value
Exercise	Common stock	1,750	$50.71	$89K
Exercise	Common stock	1,750	$50.71	$89K
Sale	Common stock	1,750	$57.7194	$101K
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	--	--	--

Holdings After Transaction: Common stock — 2,500 contracts (Direct); Common stock — 1,790 shares (Direct); Option to purchase — 33,750 contracts (Direct)

Footnotes (10)

F1. 438 shares vest on 11/18/2017 and 11/18/2018, and 437 shares vest on 11/18/2019 and 11/18/2020
F2. 625 shares vest on 10/24/2018, 10/24/2019, 10/24/2020 and 10/24/2021
F3. 700 shares vest on 11/15/2019, 11/15/2020, 11/15/2021 and 11/15/2022
F4. 875 shares vest on 11/28/2020, 11/28/2021, 11/28/2022 and 11/28/2023
F5. 950 shares vest on 11/20/2021, 11/20/2022, 11/20/2023 and 11/20/2024
F6. 1,125 shares vest on 10/26/2022, 10/26/2023, 10/26/2024 and 10/26/2025
F7. 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
F8. 1,200 shares vest on 11/16/2024, 11/16/2025, 11/16/2026 and 11/16/2027
F9. 1,200 shares vest on 11/15/2025, 11/15/2026, 11/15/2027 and 11/15/2028
F10. 1,200 shares vest on 11/20/2026, 11/20/2027, 11/20/2028 and 11/20/2029

FAQ

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

What insider transaction was reported for GSBC?

An option exercise of 1,750 shares at $50.71 and a sale of 1,750 shares at $57.7194 on 11/10/2025.

How many GSBC shares does the insider own after the transactions?

The reporting person directly owns 1,790 shares following the reported transactions.

What were the transaction codes used in the GSBC Form 4?

Code M for the option exercise and code S for the share sale.

What is the insider’s relationship to GSBC?

The reporting person is an Officer, specifically a Vice President of a subsidiary.

What derivative securities are listed for the GSBC insider?

Multiple stock options remain outstanding with exercise prices from $41.3 to $61.79, expiring between 10/24/2026 and 11/20/2034.

Was the exercised option fully depleted?

Yes. The option covering 1,750 shares at $50.71 shows 0 derivative securities remaining afterward.

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

Form 4 Insider Transactions: What Each Field Means →

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Accepted by SEC EDGAR 11/12/2025 - 09:41 AM

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

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)
11/10/2025

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)
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	Code	V	Amount	(A) or (D)	Price		6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
Common stock	11/10/2025		M		1,750	A	$50.71	3,540	D
Common stock	11/10/2025		S		1,750	D	$57.7194	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)
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)	Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares	8. Price of Derivative Security (Instr. 5)		10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
Common stock	$50.71	11/10/2025		M			1,750	⁽¹⁾	11/18/2025	Common stock	1,750	$50.71	0	D
Common stock	$41.3							⁽²⁾	10/24/2026	Common stock	2,500		2,500	D
Option to purchase	$52.2							⁽³⁾	11/15/2027	Common stock	2,800		5,300	D
Option to purchase	$55							⁽⁴⁾	11/28/2028	Common stock	3,500		8,800	D
Option to purchase	$60.15							⁽⁵⁾	11/20/2029	Common stock	3,800		12,600	D
Option to purchase	$41.74							⁽⁶⁾	10/26/2030	Common stock	4,500		17,100	D
Option to purchase	$57.98							⁽⁷⁾	11/17/2031	Common stock	4,750		21,850	D
Option to purchase	$61.55							⁽⁸⁾	11/16/2032	Common stock	4,800		26,650	D
Option to purchase	$53.22							⁽⁹⁾	11/15/2033	Common stock	4,800		31,450	D
Option to purchase	$61.79							⁽¹⁰⁾	11/20/2034	Common stock	4,800		36,250	D

Explanation of Responses:

1. 438 shares vest on 11/18/2017 and 11/18/2018, and 437 shares vest on 11/18/2019 and 11/18/2020

2. 625 shares vest on 10/24/2018, 10/24/2019, 10/24/2020 and 10/24/2021

3. 700 shares vest on 11/15/2019, 11/15/2020, 11/15/2021 and 11/15/2022

4. 875 shares vest on 11/28/2020, 11/28/2021, 11/28/2022 and 11/28/2023

5. 950 shares vest on 11/20/2021, 11/20/2022, 11/20/2023 and 11/20/2024

6. 1,125 shares vest on 10/26/2022, 10/26/2023, 10/26/2024 and 10/26/2025

7. 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

8. 1,200 shares vest on 11/16/2024, 11/16/2025, 11/16/2026 and 11/16/2027

9. 1,200 shares vest on 11/15/2025, 11/15/2026, 11/15/2027 and 11/15/2028

10. 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	11/12/2025
	** 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

GSBC insider: 1,750 exercised at $50.71, 1,750 sold at $57.7194

Rhea-AI Filing Summary

Positive

Negative