GSBC Form 144: Proposed sale of 2,800 common shares

GSBC proposed sale notice (Form 144): The filing lists proposed sales of Common stock tied to stock option exercises dated 05/06/2026.

Rhea-AI Filing Summary

GSBC proposed sale notice (Form 144): The filing lists proposed sales of Common stock tied to stock option exercises dated 05/06/2026. Broker listed: Morgan Stanley Smith Barney LLC at 1 New York Plaza. The excerpt shows two option-related entries for 2,523 shares and 277 shares, both dated 05/06/2026.

Insights

Securities Compliance Analyst

Form 144 lists proposed sales of exercised options totaling specified share amounts.

The excerpt shows two stock option exercise entries dated 05/06/2026 for Common stock: 2,523 shares and 277 shares. A broker, Morgan Stanley Smith Barney LLC, is named alongside the entries.

Timing and sale mechanics are tied to the exercise date shown; the filing indicates intent to sell but does not report completed trades or proceeds received in this excerpt.

Key Figures

Broker-listed shares: 2,800 shares Option exercise entry: 2,523 shares Option exercise entry: 277 shares +2 more

5 metrics

Broker-listed shares 2,800 shares appears in broker row associated with 05/06/2026

Option exercise entry 2,523 shares Stock Option Exercise dated 05/06/2026

Option exercise entry 277 shares Stock Option Exercise dated 05/06/2026

Numeric amount shown 195,888.28 numeric field adjacent to broker/row (labeling not shown)

Listed identifier 10963133 numeric field in the issuer/broker row (contextual identifier)

Key Terms

Form 144, Stock Option Exercise, Broker

3 terms

Form 144 regulatory

"Filer Information | 144: Filer Information"

Form 144 is a document that investors must file with the government when they plan to sell a large number of shares of a company's stock. It helps ensure transparency so everyone knows how many shares are being sold and when, which can impact the stock's price.

Stock Option Exercise financial

"Common | 05/06/2026 | Stock Option Exercise"

A stock option exercise is the act of using a previously granted right to buy shares of a company's stock at a specific, predetermined price by paying that price and receiving the shares. It matters to investors because exercising changes who owns the shares (which can dilute existing ownership), can trigger taxable events and shift potential gains or losses, and affects voting power and the company’s outstanding share count—like turning a voucher into an actual product that becomes part of circulating supply.

Broker financial

"Morgan Stanley Smith Barney LLC 1 New York Plaza"

A broker is a licensed professional or firm that helps investors buy and sell financial assets by executing trades on their behalf, acting like a marketplace agent or matchmaker between buyers and sellers. Brokers matter to investors because they provide access to markets, handle order execution and paperwork, and can offer research or advice—services that affect trade speed, costs, and the quality of investment decisions.

FAQ

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

What does the GSBC Form 144 filing report?

The filing reports proposed sales of Common stock related to option exercises on 05/06/2026. It lists entries of 2,523 and 277 shares and names Morgan Stanley Smith Barney LLC as the broker. The excerpt shows intent to sell, not completed trades.

How many shares are listed for sale in the GSBC excerpt?

The excerpt lists two option-exercise line items: 2,523 shares and 277 shares, both dated 05/06/2026. These figures are presented as the amounts associated with the stock option exercise entries in the provided content.

Who is the broker handling the proposed GSBC sales?

The broker shown is Morgan Stanley Smith Barney LLC, with an address at 1 New York Plaza, 8th Floor, New York, NY. The filing lists this broker in connection with the proposed stock option exercise sales dated 05/06/2026.

Does the excerpt state the proceeds from the GSBC transactions?

The excerpt includes a numeric amount 195,888.28 adjacent to other fields but does not explicitly label it as net proceeds in the visible lines. The content does not state completed-sale proceeds or payment recipients.

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

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Accepted by SEC EDGAR 05/06/2026 - 04:13 PM EDT 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	0001712496
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	KEVIN L BAKER
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	Vice President of Subsidiary

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	2800	195888.28	10963133	05/06/2026	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	05/06/2026	Stock Option Exercise	Issuer			2523	05/06/2026	Cash
Common	05/06/2026	Stock Option Exercise	Issuer			277	05/06/2026	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	05/06/2026
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/ Kevin L Baker
ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)