STOCK TITAN

Great Southern Bancorp (GSBC) director sells 6,000 shares after option exercise

Filing Impact
(Neutral)
Filing Sentiment
(Neutral)
Form Type
4

Rhea-AI Filing Summary

Great Southern Bancorp director William V. Turner exercised options and sold shares of common stock. On May 18, 2026, he exercised options to acquire 6,000 shares at $52.20 per share and then sold 6,000 shares in an open-market transaction at an average price of $68.3506 per share. After these transactions, he directly held 199,112 shares of common stock and also had indirect exposure to approximately 8,980 shares through the company’s 401(k) plan stock fund. Turner retained multiple outstanding option grants on Great Southern Bancorp common stock with exercise prices ranging from $41.74 to $61.79 and expiration dates between 2028 and 2035, indicating a continuing equity position beyond this exercise-and-sale.

Positive

  • None.

Negative

  • None.
Insider TURNER WILLIAM V
Role null
Sold 6,000 shs ($410K)
Type Security Shares Price Value
Exercise Option to purchase 6,000 $52.20 $313K
Exercise Common stock 6,000 $52.20 $313K
Sale Common stock 6,000 $68.3506 $410K
holding Option to purchase -- -- --
holding Option to purchase -- -- --
holding Option to purchase -- -- --
holding Option to purchase -- -- --
holding Option to purchase -- -- --
holding Option to purchase -- -- --
holding Option to purchase -- -- --
holding Option to purchase -- -- --
holding Common stock -- -- --
Holdings After Transaction: Option to purchase — 0 shares (Direct, null); Common stock — 205,112 shares (Direct, null); Common stock — 8,980 shares (Indirect, 401(k) Plan)
Footnotes (1)
  1. Reflects reporting person's holdings of units in Issuer's common stock fund under Issuer's 401(k) plan. Number of shares shown as beneficially owned under the plan represents the approximate equivalent number of shares of Issuer's common stock. 1,500 shares vest on 11/15/2019, 11/15/2020, 11/15/2021 and 11/15/2022 1,750 shares vest on 11/28/2020, 11/28/2021, 11/28/2022 and 11/28/2023 1,750 shares vest on 11/20/2021, 11/20/2022, 11/20/2023 and 11/20/2024 1,875 shares vest on 10/26/2022, 10/26/2023, 10/26/2024 and 10/26/2025 1,938 shares vest on 11/17/2023 and 11/17/2024, and 1,937 shares vest on 11/17/2025 and 11/17/2026 1,950 shares vest on 11/16/2024, 11/16/2025, 11/16/2026 and 11/16/2027 1,950 shares vest on 11/15/2025, 11/15/2026, 11/15/2027 and 11/15/2028 1,950 shares vest on 11/20/2026, 11/20/2027, 11/20/2028 and 11/20/2029 1,950 shares vest on 11/19/2027, 11/19/2028, 11/19/2029 and 11/19/2030
Shares sold 6,000 shares Common stock sold on May 18, 2026
Sale price $68.3506 per share Average price for 6,000 shares sold
Options exercised 6,000 shares Common stock acquired via option exercise
Exercise price $52.20 per share Strike price of exercised options
Direct holdings after 199,112 shares Common stock held directly post-transaction
401(k) plan holdings 8,980 equivalent shares Indirect interest via issuer’s 401(k) stock fund
Remaining option grant 7,800 underlying shares at $57.29 Option expiring November 19, 2035
Remaining option grant 7,500 underlying shares at $41.74 Option expiring October 26, 2030
open-market sale financial
"Sale in open market or private transaction"
An open-market sale is when a shareholder sells existing shares directly on a public exchange to any willing buyer, rather than through a private deal. Think of it like putting goods on a busy market stall where price is set by supply and demand; for investors it matters because such sales increase available supply, can put short-term downward pressure on the stock price, and signal changes in liquidity or investor confidence.
derivative exercise/conversion financial
"Exercise or conversion of derivative security"
Option to purchase financial
"Option to purchase, underlying security title Common stock"
401(k) plan financial
"holdings of units in Issuer's common stock fund under Issuer's 401(k) plan"
A 401(k) plan is a workplace retirement account that lets employees set aside part of their pay into a tax-advantaged savings pot, often with employers adding matching contributions — like a workplace piggy bank for future income. It matters to investors because the amount people save and how employers fund these plans influence consumer spending, corporate payroll costs and the flow of money into financial markets, which can affect stock prices and company valuations.
beneficially owned financial
"Number of shares shown as beneficially owned under the plan"
Beneficially owned describes securities or assets where a person has the economic rights and control—such as the right to receive dividends and to direct voting—even if legal title is held in another name. Think of it like having the keys and using a car that’s registered to someone else: you get the benefits and make decisions. Investors care because beneficial ownership reveals who truly controls value and voting power, affecting corporate decisions and takeover dynamics.
SEC Form 4
FORM 4UNITED 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
OMB APPROVAL
OMB Number:3235-0287
Estimated average burden
hours per response:0.5
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*
TURNER WILLIAM V

(Last)(First)(Middle)
CARE OF GREAT SOUTHERN BANK
218 S GLENSTONE AVE

(Street)
SPRINGFIELD MISSOURI 65802

(City)(State)(Zip)

UNITED STATES

(Country)
2. Issuer Name and Ticker or Trading Symbol
GREAT SOUTHERN BANCORP, INC. [ GSBC ]
5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
XDirector10% Owner
Officer (give title below)Other (specify below)
2a. Foreign Trading Symbol
3. Date of Earliest Transaction (Month/Day/Year)
05/18/2026
6. Individual or Joint/Group Filing (Check Applicable Line)
XForm filed by One Reporting Person
Form filed by More than One Reporting Person
4. If Amendment, Date of Original Filed (Month/Day/Year)

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)
CodeVAmount(A) or (D)Price
Common stock05/18/2026M6,000A$52.2205,112D
Common stock05/18/2026S6,000D$68.3506199,112D
Common stock8,980(1)I401(k) Plan
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)
CodeV(A)(D)Date ExercisableExpiration DateTitleAmount or Number of Shares
Option to purchase$52.205/18/2026M6,000 (2)11/15/2027Common Stock6,000$52.20D
Option to purchase$55 (3)11/28/2028Common Stock7,00013,000D
Option to purchase$60.15 (4)11/20/2029Common stock7,00020,000D
Option to purchase$41.74 (5)10/26/2030Common stock7,50027,500D
Option to purchase$57.98 (6)11/17/2031Common stock7,75035,250D
Option to purchase$61.55 (7)11/16/2032Common stock7,80043,050D
Option to purchase$53.22 (8)11/15/2033Common stock7,80050,850D
Option to purchase$61.79 (9)11/20/2034Common stock7,80058,650D
Option to purchase$57.29 (10)11/19/2035Common stock7,80066,450D
Explanation of Responses:
1. Reflects reporting person's holdings of units in Issuer's common stock fund under Issuer's 401(k) plan. Number of shares shown as beneficially owned under the plan represents the approximate equivalent number of shares of Issuer's common stock.
2. 1,500 shares vest on 11/15/2019, 11/15/2020, 11/15/2021 and 11/15/2022
3. 1,750 shares vest on 11/28/2020, 11/28/2021, 11/28/2022 and 11/28/2023
4. 1,750 shares vest on 11/20/2021, 11/20/2022, 11/20/2023 and 11/20/2024
5. 1,875 shares vest on 10/26/2022, 10/26/2023, 10/26/2024 and 10/26/2025
6. 1,938 shares vest on 11/17/2023 and 11/17/2024, and 1,937 shares vest on 11/17/2025 and 11/17/2026
7. 1,950 shares vest on 11/16/2024, 11/16/2025, 11/16/2026 and 11/16/2027
8. 1,950 shares vest on 11/15/2025, 11/15/2026, 11/15/2027 and 11/15/2028
9. 1,950 shares vest on 11/20/2026, 11/20/2027, 11/20/2028 and 11/20/2029
10. 1,950 shares vest on 11/19/2027, 11/19/2028, 11/19/2029 and 11/19/2030
Remarks:
Matt Snyder, by Power of Attorney from William V. Turner05/19/2026
** Signature of Reporting PersonDate
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.
* Form 4: SEC 1474 (03-26)

FAQ

What insider transaction did GSBC director William V. Turner report?

William V. Turner reported an option exercise and matching share sale. He exercised options for 6,000 Great Southern Bancorp shares at $52.20, then sold 6,000 shares at an average price of $68.3506 on May 18, 2026.

How many GSBC shares did William V. Turner sell in this Form 4?

Turner sold 6,000 shares of Great Southern Bancorp common stock. The sale occurred on May 18, 2026, at an average price of $68.3506 per share in an open-market or private transaction, according to the Form 4 data.

What price did William V. Turner receive for his GSBC share sale?

He received an average price of $68.3506 per share for 6,000 Great Southern Bancorp shares. This sale followed an option exercise at $52.20 per share, reflecting a spread between the exercise price and the sale price.

How many GSBC shares does William V. Turner hold after the transactions?

After the reported transactions, Turner directly holds 199,112 shares of Great Southern Bancorp common stock. He also has indirect exposure to approximately 8,980 equivalent shares through the issuer’s 401(k) plan common stock fund.

What options on GSBC stock does William V. Turner still hold?

Turner retains several option grants on Great Southern Bancorp common stock. Remaining grants include options with exercise prices such as $57.29, $61.79 and $41.74, with expiration dates ranging from 2028 through 2035, indicating ongoing derivative-based exposure.

What was the exercise price for the GSBC options William V. Turner exercised?

The exercised options had an exercise price of $52.20 per share for 6,000 underlying Great Southern Bancorp common shares. Following this derivative exercise, the specific option grant shows zero remaining options in that series on the Form 4.