Great Southern Bancorp director discloses 2,000 new options

Rhea-AI Filing Summary

Great Southern Bancorp, Inc. (GSBC) director Earl A. Steinert Jr. reported new stock option grants and updated equity holdings. On 11/19/2025, he received four option grants to purchase a total of 2,000 shares of common stock at an exercise price of $57.29 per share, with 500 options scheduled to vest in each of 2027, 2028, 2029 and 2030 and expiring in 2035. After these transactions, he directly beneficially owns 939,596 shares of GSBC common stock and holds derivative securities representing options on 13,000 shares across multiple grants with exercise prices ranging from $41.74 to $61.79 and expirations between 2029 and 2035.

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

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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 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)
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								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)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares
Option to purchase	$57.29	11/19/2025		A		500		11/19/2027	11/19/2035	Common stock	500	$57.29	500	D
Option to purchase	$57.29	11/19/2025		A		500		11/19/2028	11/19/2035	Common stock	500	$57.29	1,000	D
Option to purchase	$57.29	11/19/2025		A		500		11/19/2029	11/19/2035	Common stock	500	$57.29	1,500	D
Option to purchase	$57.29	11/19/2025		A		500		11/19/2030	11/19/2035	Common stock	500	$57.29	2,000	D
Option to purchase	$60.15							(1)	11/20/2029	Common stock	2,000		4,000	D
Option to purchase	$41.74							(2)	10/26/2030	Common stock	1,000		5,000	D
Option to purchase	$57.98							(3)	11/17/2031	Common stock	2,000		7,000	D
Option to purchase	$61.55							(4)	11/16/2032	Common stock	2,000		9,000	D
Option to purchase	$53.22							(5)	11/15/2033	Common stock	2,000		11,000	D
Option to purchase	$61.79							(6)	11/20/2034	Common stock	2,000		13,000	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

Remarks:

	Matt Snyder, by Power of Attorney from Earl A. Steinert, Jr.	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.

FAQ

What did GSBC director Earl A. Steinert Jr. report on this Form 4?

The filing reports that Earl A. Steinert Jr., a director of Great Southern Bancorp, Inc. (GSBC), received new stock option grants on 11/19/2025 and discloses his updated beneficial ownership of common shares and options.

How many GSBC stock options were granted in the latest transaction?

On 11/19/2025, he was granted options to purchase a total of 2,000 shares of GSBC common stock, split into four grants of 500 options each.

What is the exercise price and vesting schedule of the new GSBC options?

The four new grants each have an exercise price of $57.29 per share. According to the notes, 500 shares vest on 11/20/2026, 11/20/2027, 11/20/2028 and 11/20/2029, with the options expiring in 2035.

How many GSBC common shares does the director own after these transactions?

Following the reported transactions, the director beneficially owns 939,596 shares of GSBC common stock in direct ownership.

What is the total number of GSBC shares underlying the director’s outstanding options?

After the reported grants, the director holds derivative securities (stock options) covering a total of 13,000 shares of GSBC common stock across multiple option awards.

What are the ranges of exercise prices and expirations for the outstanding GSBC options?

The outstanding options have exercise prices ranging from $41.74 to $61.79 per share, with expiration dates from 11/20/2029 through 11/20/2035, as listed in the derivative securities table.

Is this GSBC Form 4 filed for one reporting person or multiple?

The form is indicated as being filed by one reporting person, covering the holdings and transactions of director Earl A. Steinert Jr..