Great Southern Bancorp director sells 1,500 shares

Great Southern Bancorp director Earl A. Steinert Jr. reported routine equity transactions.

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Rhea-AI Filing Summary

Great Southern Bancorp director Earl A. Steinert Jr. reported routine equity transactions. On 02/04/2026, he exercised options for 1,000 common shares at $41.74 and 500 common shares at $53.22, then sold 1,500 common shares at $63.4935.

After these trades, he directly owned 939,596 common shares and held multiple “option to purchase” awards covering an aggregate of 11,500 common shares with exercise prices between $41.74 and $61.79, vesting in annual 500‑share installments through 2030.

Insider Trade Summary

Exercise and Sale: 1,500 shares ($27K approx. pre-tax spread)

Exercise and Sale 10 txns

Insider STEINERT EARL A JR

Role Director

Sold 1,500 shs ($95K)

Approx. gross sale proceeds $95K

Approx. exercise cost $68K

Approx. pre-tax spread $27K

Type	Security	Shares	Price	Value
Exercise	Option to purchase	1,000	$41.74	$42K
Exercise	Option to purchase	500	$53.22	$27K
Exercise	Common stock	1,000	$41.74	$42K
Exercise	Common stock	500	$53.22	$27K
Sale	Common stock	1,500	$63.4935	$95K
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 — 19,500 contracts for 10,000 underlying shares (Direct); Common stock — 939,596 shares (Direct)

Footnotes (7)

F1. 500 shares vest on 11/20/2021, 11/20/2022, 11/20/2023 and 11/20/2024
F2. 500 shares vest on 10/26/2024, 10/26/2025
F3. 500 shares vest on 11/17/2023, 11/17/2024, 11/17/2025 and 11/17/2026
F4. 500 shares vest on 11/16/2024, 11/16/2025, 11/16/2026 and 11/16/2027
F5. 500 shares vest on 11/15/2025, 11/15/2026, 11/15/2027 and 11/15/2028
F6. 500 shares vest on 11/20/2026, 11/20/2027, 11/20/2028 and 11/20/2029
F7. 500 shares vest on 11/19/2027, 11/19/2028, 11/19/2029 and 11/19/2030

FAQ

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What insider transactions did GSBC director Earl A. Steinert Jr. report?

He exercised stock options for 1,500 Great Southern Bancorp (GSBC) shares and sold 1,500 shares. The options were exercised at $41.74 and $53.22 per share, while the sale occurred at an average price of $63.4935 on 02/04/2026.

How many GSBC shares does Earl A. Steinert Jr. own after this Form 4?

Following the reported transactions, Earl A. Steinert Jr. directly owns 939,596 shares of Great Southern Bancorp common stock. This reflects his position after exercising 1,500 options and selling 1,500 shares on 02/04/2026 at an average price of $63.4935.

What option exercises did the GSBC director complete on 02/04/2026?

On 02/04/2026, the director exercised options for 1,000 Great Southern Bancorp shares at $41.74 and 500 shares at $53.22. These exercises converted derivative awards into common stock, increasing his directly held shares before the same-day sale.

At what price were GSBC shares sold in this insider transaction?

The Form 4 shows a sale of 1,500 Great Southern Bancorp common shares at an average price of $63.4935 per share. This sale occurred on 02/04/2026 after the director exercised stock options at lower strike prices the same day.

What GSBC stock options does Earl A. Steinert Jr. continue to hold?

He continues to hold options to purchase 11,500 Great Southern Bancorp shares, with exercise prices ranging from $41.74 to $61.79. These options vest in 500‑share annual installments between 2024 and 2030 and expire from 2029 through 2035.

Is the 02/04/2026 GSBC insider trading activity direct or indirect ownership?

All reported holdings and transactions are coded as direct ownership. The Form 4 shows common stock and option positions held directly by Earl A. Steinert Jr., with no nature-of-ownership footnotes indicating indirect entities or shared voting or investment authority.

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Form 4 Insider Transactions: What Each Field Means →

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Accepted by SEC EDGAR 02/04/2026 - 05:33 PM EST

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^*

STEINERT EARL A JR

(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)

X	Director	10% Owner
	Officer (give title below)	Other (specify below)

3. Date of Earliest Transaction (Month/Day/Year)
02/04/2026

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)
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	02/04/2026		M		1,000	A	$41.74	940,596	D
Common stock	02/04/2026		M		500	A	$53.22	941,096	D
Common stock	02/04/2026		S		1,500	D	$63.4935	939,596	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)
Option to purchase	$60.15							⁽¹⁾	11/20/2029	Common stock	2,000		2,000	D
Option to purchase	$41.74	02/04/2026		M			1,000	⁽²⁾	10/26/2030	Common stock	1,000	$41.74	2,000	D
Option to purchase	$57.98							⁽³⁾	11/17/2031	Common stock	2,000		4,000	D
Option to purchase	$61.55							⁽⁴⁾	11/16/2032	Common stock	2,000		6,000	D
Option to purchase	$53.22	02/04/2026		M			500	⁽⁵⁾	11/15/2033	Common stock	2,000	$53.22	7,500	D
Option to purchase	$61.79							⁽⁶⁾	11/20/2034	Common stock	2,000		9,500	D
Option to purchase	$57.29							⁽⁷⁾	11/19/2035	Common stock	2,000		11,500	D

Explanation of Responses:

1. 500 shares vest on 11/20/2021, 11/20/2022, 11/20/2023 and 11/20/2024

2. 500 shares vest on 10/26/2024, 10/26/2025

3. 500 shares vest on 11/17/2023, 11/17/2024, 11/17/2025 and 11/17/2026

4. 500 shares vest on 11/16/2024, 11/16/2025, 11/16/2026 and 11/16/2027

5. 500 shares vest on 11/15/2025, 11/15/2026, 11/15/2027 and 11/15/2028

6. 500 shares vest on 11/20/2026, 11/20/2027, 11/20/2028 and 11/20/2029

7. 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 Earl A. Steinert, Jr.	02/04/2026
	** 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