Holder plans Rule 144 sale of 1,500 shares

A holder of restricted Common shares of the issuer has filed a notice of proposed sale under Rule 144.

Rhea-AI Filing Summary

A holder of restricted Common shares of the issuer has filed a notice of proposed sale under Rule 144. The filing covers up to 1,500 common shares, with an aggregate market value of 95,240.25, to be sold through Morgan Stanley Smith Barney LLC Executive Financial Services on the NASDAQ.

The notice states that the issuer had 11,189,262 shares outstanding as of the filing context. The 1,500 shares were acquired on 02/04/2026 via a stock option exercise from the issuer and paid for in cash, with the approximate sale date also listed as 02/04/2026.

FAQ

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What does the Form 144 filing for GSBC disclose?

The Form 144 filing discloses a proposed sale of up to 1,500 common shares of the issuer’s stock. These shares are to be sold under Rule 144, signaling an intended disposition of restricted or control securities through public market transactions.

How many GSBC shares are planned for sale and on which exchange?

The filing indicates an intended sale of 1,500 common shares with an aggregate market value of 95,240.25. The shares are expected to be sold on the NASDAQ, providing a public market venue for the transaction.

How were the GSBC shares in the Form 144 acquired?

The 1,500 GSBC common shares were acquired on 02/04/2026 through a stock option exercise from the issuer. Payment for these shares was made in cash on the same date, according to the acquisition details in the filing.

Who is the broker handling the planned GSBC share sale?

The planned sale of 1,500 GSBC common shares will be executed through Morgan Stanley Smith Barney LLC Executive Financial Services. The broker’s listed address is 1 New York Plaza, 8th Floor, New York, NY 10004, as disclosed in the securities information table.

What is the aggregate market value and outstanding shares for GSBC in this filing?

The filing shows an aggregate market value of 95,240.25 for the 1,500 common shares covered. It also reports that 11,189,262 common shares of the issuer were outstanding, providing context for the relative size of the proposed sale.

When is the approximate sale date for the GSBC shares under Form 144?

The Form 144 lists an approximate date of sale of 02/04/2026 for the 1,500 common shares. This date matches both the acquisition date via stock option exercise and the payment date, indicating a same-day exercise and intended sale.

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

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Accepted by SEC EDGAR 02/04/2026 - 04:03 PM Learn about SEC filing dates

Form 144 Filer Information	UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 144 NOTICE OF PROPOSED SALE OF SECURITIES PURSUANT TO RULE 144 UNDER THE SECURITIES ACT OF 1933
FORM 144

144: Filer Information

Filer CIK	0001284362
Filer CCC	XXXXXXXX
Is this a LIVE or TEST Filing?	LIVE TEST
Submission Contact Information
Name
Phone
E-Mail Address

144: Issuer Information

Name of Issuer	GREAT SOUTHERN BANCORP, INC.
SEC File Number	000-18082
Address of Issuer	1451 East Battlefield, Springfield, MISSOURI 65804
Phone	(417) 887-4400
Name of Person for Whose Account the Securities are To Be Sold	EARL STEINERT
See the definition of "person" in paragraph (a) of Rule 144. Information is to be given not only as to the person for whose account the securities are to be sold but also as to all other persons included in that definition. In addition, information shall be given as to sales by all persons whose sales are required by paragraph (e) of Rule 144 to be aggregated with sales for the account of the person filing this notice.
Relationship to Issuer	Director

144: Securities Information

Title of the Class of Securities To Be Sold	Name and Address of the Broker	Number of Shares or Other Units To Be Sold	Aggregate Market Value	Number of Shares or Other Units Outstanding	Approximate Date of Sale	Name the Securities Exchange
Common	Morgan Stanley Smith Barney LLC Executive Financial Services 1 New York Plaza 8th Floor New York NY 10004	1500	95240.25	11189262	02/04/2026	NASDAQ

Furnish the following information with respect to the acquisition of the securities to be sold and with respect to the payment of all or any part of the purchase price or other consideration therefor:

144: Securities To Be Sold

Title of the Class	Date you Acquired	Nature of Acquisition Transaction	Name of Person from Whom Acquired	Is this a Gift?	Date Donor Acquired	Amount of Securities Acquired	Date of Payment	Nature of Payment *
Common	02/04/2026	Stock Option Exercise	Issuer			1500	02/04/2026	Cash

* If the securities were purchased and full payment therefor was not made in cash at the time of purchase, explain in the table or in a note thereto the nature of the consideration given. If the consideration consisted of any note or other obligation, or if payment was made in installments describe the arrangement and state when the note or other obligation was discharged in full or the last installment paid.

Furnish the following information as to all securities of the issuer sold during the past 3 months by the person for whose account the securities are to be sold.

144: Securities Sold During The Past 3 Months

Nothing to Report

144: Remarks and Signature

Remarks
Date of Notice	02/04/2026
ATTENTION:
The person for whose account the securities to which this notice relates are to be sold hereby represents by signing this notice that he does not know any material adverse information in regard to the current and prospective operations of the Issuer of the securities to be sold which has not been publicly disclosed. If such person has adopted a written trading plan or given trading instructions to satisfy Rule 10b5-1 under the Exchange Act, by signing the form and indicating the date that the plan was adopted or the instruction given, that person makes such representation as of the plan adoption or instruction date.
Signature	/s/ Earl A Steinert, Jr.
ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)