GSBC Form 144: Proposed sale of Common stock

GSBC filed a Form 144 indicating proposed sales of Common stock tied to stock option exercises.

Rhea-AI Filing Summary

GSBC filed a Form 144 indicating proposed sales of Common stock tied to stock option exercises. The notice lists multiple 500-share lot entries dated 05/26/2026 and shows a header quantity of 4,500. The broker listed is Morgan Stanley Smith Barney LLC Executive Financial Services.

Insights

Capital Markets Counsel

Form 144 lists proposed affiliate sales from option exercises on 05/26/2026.

The filing shows repeated 500-share sale entries dated 05/26/2026, processed through Morgan Stanley Smith Barney LLC. This identifies planned dispositions by an affiliate under resale notice procedures.

Cash‑flow treatment and buyer details are not shown in the excerpt; subsequent filing or trade reports would show execution details and proceeds.

Key Figures

Header quantity: 4,500 Per‑lot shares listed: 500 shares Numeric value shown: 322,270.65 +2 more

5 metrics

Header quantity 4,500 appears in issuer/broker header

Per‑lot shares listed 500 shares multiple entries dated 05/26/2026

Numeric value shown 322,270.65 appears in header line (no unit shown)

Identifier 10,893,203 numeric entry in header line

Transaction date 05/26/2026 date attached to each stock option exercise entry

Key Terms

Form 144, Stock Option Exercise, Issuer

3 terms

Form 144 regulatory

"144: Securities To Be Sold"

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 | 05/26/2026 | 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.

Issuer financial

"Stock Option Exercise | Issuer"

FAQ

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

What does the Form 144 filed for GSBC show?

The Form 144 shows proposed sales of Common stock tied to stock option exercises on 05/26/2026. The filing lists multiple 500-share entries and names Morgan Stanley Smith Barney LLC as the broker.

How many shares per lot are listed in the GSBC Form 144?

The filing lists repeated lots of 500 shares dated 05/26/2026. The header also shows a numeric entry of 4,500, consistent with multiple 500-share entries in the excerpt.

Who is the broker or placement agent on the GSBC notice?

The notice names Morgan Stanley Smith Barney LLC Executive Financial Services at 1 New York Plaza, 8th Floor, New York, NY. That broker appears alongside the listed sale entries dated 05/26/2026.

Are proceeds or execution details shown in the GSBC excerpt?

The excerpt lists a numeric value 322,270.65 and other identifiers but does not provide explicit labeling of proceeds or execution outcomes in the visible text. The entries are dated 05/26/2026.

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

See more from StockTitan in Google Search and AI answers. Adds StockTitan as a preferred source · opens Google

Add on Google Not now

Accepted by SEC EDGAR 05/26/2026 - 04:09 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	4500	322270.65	10893203	05/26/2026	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	05/26/2026	Stock Option Exercise	Issuer			500	05/26/2026	Cash
Common	05/26/2026	Stock Option Exercise	Issuer			500	05/26/2026	Cash
Common	05/26/2026	Stock Option Exercise	Issuer			500	05/26/2026	Cash
Common	05/26/2026	Stock Option Exercise	Issuer			500	05/26/2026	Cash
Common	05/26/2026	Stock Option Exercise	Issuer			500	05/26/2026	Cash
Common	05/26/2026	Stock Option Exercise	Issuer			500	05/26/2026	Cash
Common	05/26/2026	Stock Option Exercise	Issuer			500	05/26/2026	Cash
Common	05/26/2026	Stock Option Exercise	Issuer			500	05/26/2026	Cash
Common	05/26/2026	Stock Option Exercise	Issuer			500	05/26/2026	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	05/26/2026
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)