GSBC affiliate files Form 144 to sell shares

Great Southern Bancorp affiliate filed a Form 144 notice to sell shares of GSBC.

Rhea-AI Filing Summary

Great Southern Bancorp affiliate filed a Form 144 notice to sell shares of GSBC. The filing lists two stock option exercises reported as issuer transactions on 04/30/2026 for 1,050 shares and 986 shares, both described as cash exercises. The filing also records a prior sale by Rex Copeland of 1,797 shares on 02/06/2026 for $114,418.04.

Insights

Securities Compliance Analyst

Form 144 is a notice of proposed sale by an affiliate; it lists option exercises and a recent sale.

Form 144 provides notice that affiliated holders intend to sell or disposed of registered securities. The excerpt lists two issuer-reported stock option exercises totaling 2,036 shares on 04/30/2026 and a prior sale of 1,797 shares by Rex Copeland on 02/06/2026 for $114,418.04.

Cash‑flow treatment is shown for the exercises as cash; timing and planned disposition methods beyond the notice are not stated in the excerpt. Subsequent public filings or broker reports may show completed transactions.

Key Figures

Option exercise (1): 1,050 shares Option exercise (2): 986 shares Prior sale by Rex Copeland: 1,797 shares +2 more

5 metrics

Option exercise (1) 1,050 shares Stock option exercise dated 04/30/2026

Option exercise (2) 986 shares Stock option exercise dated 04/30/2026

Prior sale by Rex Copeland 1,797 shares Sold on 02/06/2026

Proceeds reported $114,418.04 Consideration for 1,797 shares sold on 02/06/2026

Total shares listed in header 138,957.00 Header numeric field from excerpt

Key Terms

Form 144, Stock Option Exercise, Issuer, Cash

4 terms

Form 144 regulatory

"Filed as a notice of proposed sale by an affiliate"

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

"Listed as "Stock Option Exercise" with issuer and cash noted"

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 regulatory

"Exercises described as issuer transactions on 04/30/2026"

Cash financial

"Exercise consideration labeled as "Cash" in the excerpt"

FAQ

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

What does GSBC Form 144 filing mean?

It is a notice that an affiliate intends to sell shares of GSBC. The excerpt lists option exercises and a prior sale, signalling proposed or recent transactions by insiders or affiliates.

How many shares were exercised on 04/30/2026 in the GSBC filing?

The filing shows two issuer stock option exercises totaling 1,050 and 986 shares. Both exercises are dated 04/30/2026 and are described as cash exercises.

Who sold shares during the past three months according to the filing?

The excerpt shows Rex Copeland sold 1,797 shares on 02/06/2026 for $114,418.04, recorded under "Securities Sold During The Past 3 Months."

Does the Form 144 excerpt state how the shares will be sold?

The excerpt lists the exercises as cash but does not specify distribution methods for resale. Plan of distribution or broker methods are not provided in the visible text.

Are proceeds recipients identified in the filing excerpt?

The excerpt labels the exercises as Issuer and the exercises as Cash; it does not explicitly name who will receive resale proceeds in the provided text.

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

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Accepted by SEC EDGAR 04/30/2026 - 04:27 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	0001108323
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	REX COPELAND
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	Officer
Relationship to Issuer	Senior Vice Pres. 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	2036	138957.00	10963133	04/30/2026	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	04/30/2026	Stock Option Exercise	Issuer			1050	04/30/2026	Cash
Common	04/30/2026	Stock Option Exercise	Issuer			986	04/30/2026	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

Name and Address of Seller	Title of Securities Sold	Date of Sale	Amount of Securities Sold	Gross Proceeds
REX COPELAND 1451 East Battlefield, Springfield, MO 65804	Common	02/06/2026	1797	114418.04

144: Remarks and Signature

Remarks
Date of Notice	04/30/2026
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/ Rex A Copeland
ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)