STOCK TITAN

Great Southern Bancorp (GSBC) exec trades 2,500 shares after option exercise

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

Rhea-AI Filing Summary

Great Southern Bancorp, Inc. executive John M. Bugh reported an option exercise and share sale in company stock. On April 20, 2026, he exercised options to acquire 2,500 shares of common stock at $41.30 per share and sold 2,500 shares at $67.59 in an open‑market transaction.

After these transactions, Bugh directly holds 1,790 shares of common stock and retains indirect exposure through approximately 4,806 equivalent shares in the company’s 401(k) plan. He also continues to hold multiple stock option awards covering a total of 38,550 underlying shares with exercise prices generally between the low‑$40s and low‑$60s and expirations from 2027 through 2035.

Positive

  • None.

Negative

  • None.
Insider Bugh John M
Role null
Sold 2,500 shs ($169K)
Type Security Shares Price Value
Exercise Common stock 2,500 $41.30 $103K
Exercise Common stock 2,500 $41.30 $103K
Sale Common stock 2,500 $67.59 $169K
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 Option to purchase -- -- --
holding Common stock -- -- --
Holdings After Transaction: Common stock — 0 shares (Direct, null); Option to purchase — 2,800 shares (Direct, null); Common stock — 4,806 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. 625 shares vest on 10/24/2018, 10/24/2019, 10/24/2020 and 10/24/2021 700 shares vest on 11/15/2019, 11/15/2020, 11/15/2021 and 11/15/2022 875 shares vest on 11/28/2020, 11/28/2021, 11/28/2022 and 11/28/2023 950 shares vest on 11/20/2021, 11/20/2022, 11/20/2023 and 11/20/2024 1,125 shares vest on 10/26/2022, 10/26/2023, 10/26/2024 and 10/26/2025 1,188 shares vest on 11/17/2023 and 11/17/2024 and 1,187 shares vest on 11/17/2025 and 11/17/2026 1,200 shares vest on 11/16/2024, 11/16/2025, 11/16/2026 and 11/16/2027 1,200 shares vest on 11/15/2025, 11/15/2026, 11/15/2027 and 11/15/2028 1,200 shares vest on 11/20/2026, 11/20/2027, 11/20/2028 and 11/20/2029 1,200 shares vest on 11/19/2027, 11/19/2028, 11/19/2029 and 11/19/2030
Shares sold 2,500 shares Common stock open‑market sale on April 20, 2026
Sale price $67.59/share Price for 2,500 GSBC common shares sold
Options exercised 2,500 shares Common stock acquired via option exercise
Exercise price $41.30/share Strike price for exercised options
Direct holdings after 1,790 shares GSBC common stock held directly following transactions
401(k) equivalent shares 4,806 shares Approximate equivalent GSBC shares in 401(k) plan
Remaining option underlying shares 38,550 shares Total underlying common shares across remaining options
Option exercise prices range $41.74–$61.79/share Exercise prices on remaining option awards
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.
Option to purchase financial
"security_title: Option to purchase, underlying security title: Common stock"
derivative exercise/conversion financial
"transaction_action: derivative exercise/conversion for code M transactions"
open-market sale financial
"transaction_action: open-market sale for 2,500 shares at $67.59"
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.
vesting financial
"shares vest on 10/24/2018, 10/24/2019, 10/24/2020 and 10/24/2021"
Vesting is the process by which you earn full ownership of something, like company stock or a retirement benefit, over time. It’s like earning the right to keep a gift piece by piece the longer you stay with a company, making sure employees stay committed before they receive all the benefits.
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*
Bugh John M

(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)
Director10% Owner
Officer (give title below)XOther (specify below)
Vice President of Subsidiary
2a. Foreign Trading Symbol
3. Date of Earliest Transaction (Month/Day/Year)
04/20/2026
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 stock04/20/2026M2,500A$41.34,290D
Common stock04/20/2026S2,500D$67.591,790D
Common stock4,806(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
Common stock$41.304/20/2026M2,500 (2)10/24/2026Common stock2,500$41.30D
Option to purchase$52.2 (3)11/15/2027Common stock2,8002,800D
Option to purchase$55 (4)11/28/2028Common stock3,5006,300D
Option to purchase$60.15 (5)11/20/2029Common stock3,80010,100D
Option to purchase$41.74 (6)10/26/2030Common stock4,50014,600D
Option to purchase$57.98 (7)11/17/2031Common stock4,75019,350D
Option to purchase$61.55 (8)11/16/2032Common stock4,80024,150D
Option to purchase$53.22 (9)11/15/2033Common stock4,80028,950D
Option to purchase$61.79 (10)11/20/2034Common stock4,80033,750D
Option to purchase$57.29 (11)11/19/2035Common stock4,80038,550D
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. 625 shares vest on 10/24/2018, 10/24/2019, 10/24/2020 and 10/24/2021
3. 700 shares vest on 11/15/2019, 11/15/2020, 11/15/2021 and 11/15/2022
4. 875 shares vest on 11/28/2020, 11/28/2021, 11/28/2022 and 11/28/2023
5. 950 shares vest on 11/20/2021, 11/20/2022, 11/20/2023 and 11/20/2024
6. 1,125 shares vest on 10/26/2022, 10/26/2023, 10/26/2024 and 10/26/2025
7. 1,188 shares vest on 11/17/2023 and 11/17/2024 and 1,187 shares vest on 11/17/2025 and 11/17/2026
8. 1,200 shares vest on 11/16/2024, 11/16/2025, 11/16/2026 and 11/16/2027
9. 1,200 shares vest on 11/15/2025, 11/15/2026, 11/15/2027 and 11/15/2028
10. 1,200 shares vest on 11/20/2026, 11/20/2027, 11/20/2028 and 11/20/2029
11. 1,200 shares vest on 11/19/2027, 11/19/2028, 11/19/2029 and 11/19/2030
Remarks:
Matt Snyder, by Power of Attorney from John M. Bugh04/21/2026
** 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 transactions did GSBC executive John M. Bugh report?

John M. Bugh reported exercising options for 2,500 shares of Great Southern Bancorp common stock at $41.30 per share, then selling 2,500 shares at $67.59 in an open‑market transaction. The filing shows this exercise‑and‑sell pattern on April 20, 2026.

How many GSBC shares does John M. Bugh hold after these transactions?

After the reported transactions, John M. Bugh directly holds 1,790 shares of Great Southern Bancorp common stock. In addition, he has indirect exposure through approximately 4,806 equivalent shares in the company’s common stock fund within its 401(k) retirement plan.

What stock options does John M. Bugh still have in Great Southern Bancorp (GSBC)?

Bugh retains several option awards to purchase Great Southern Bancorp common stock, covering 38,550 underlying shares. Exercise prices range from about $41.74 to $61.79 per share, with stated expiration dates between 2027 and 2035, according to the derivative holdings disclosed.

What was the price of John M. Bugh’s GSBC share sale?

The reported sale involved 2,500 shares of Great Southern Bancorp common stock at $67.59 per share. This was characterized as an open‑market or private transaction, occurring on April 20, 2026, immediately following an option exercise for the same number of shares.

How is John M. Bugh’s 401(k) investment in GSBC stock reported?

The filing states that 4,806 units represent Bugh’s holdings in Great Southern Bancorp’s common stock fund under the company’s 401(k) plan. The number disclosed reflects the approximate equivalent number of underlying common shares attributable to his retirement plan position.

What role does John M. Bugh hold at Great Southern Bancorp?

John M. Bugh is identified as a Vice President of a subsidiary of Great Southern Bancorp, Inc. While not listed as a director or named executive officer of the parent company, his position makes him a reporting person for transactions in the company’s securities.