STOCK TITAN

Great Southern Bancorp (GSBC) director lifts stake to 2,024 shares

(Neutral)
(Neutral)
Form Type
4

Rhea-AI Filing Summary

GREAT SOUTHERN BANCORP, INC. (GSBC) director Debra Mallonee Hart reported acquiring 11 shares of common stock on 2026-07-14 through a DRIP transaction at $78.0111 per share, bringing her directly held common stock to 2,024 shares. The company notes this DRIP acquisition is voluntarily reported as it is exempt from Section 16 reporting. Hart also holds multiple employee stock options, including options on 5,000 underlying shares at an exercise price of $51.40 expiring on 2027-03-15 and options on 2,000 underlying shares at $52.20 expiring on 2027-11-15, with additional 2,000-share grants expiring between 2028 and 2035. The Rule 10b5-1 checkbox is not marked as using a trading plan.

Positive

  • None.

Negative

  • None.
Insider Hart Debra Mallonee
Role Director
Type Security Shares Price Value
Other Common Stock F1 11 $78.0111 $858.12
holding Option to purchase F2 -- -- --
holding Option to purchase F3 -- -- --
holding Option to purchase F4 -- -- --
holding Option to purchase F5 -- -- --
holding Option to purchase F6 -- -- --
holding Option to purchase F7 -- -- --
holding Option to purchase F8 -- -- --
holding Option to purchase F9 -- -- --
holding Option to purchase F10 -- -- --
holding Option to purchase F11 -- -- --
Holdings After Transaction: Common Stock — 2,024 shares (Direct); Option to purchase — 23,000 shares (Direct)
Footnotes (11)
  1. F1. DRIP acquisition exempt from Section 16 reporting being reported voluntarily
  2. F2. 1,250 shares vest on 03/15/2019, 03/15/2020, 03/15/2021 and 03/15/2022
  3. F3. 500 shares vest on 11/15/2019, 11/15/2020, 11/15/2021 and 11/15/2022
  4. F4. 500 shares vest on 11/28/2020, 11/28/2021, 11/28/2022 and 11/28/2023
  5. F5. 500 shares vest on 11/20/2021, 11/20/2022, 11/20/2023 and 11/20/2024
  6. F6. 500 shares vest on 10/26/2022, 10/26/2023, 10/26/2024 and 10/26/2025
  7. F7. 500 shares vest on 11/17/2023, 11/17/2024, 11/17/2025 and 11/17/2026
  8. F8. 500 shares vest on 11/16/2024, 11/16/2025, 11/16/2026 and 11/16/2027
  9. F9. 500 shares vest on 11/15/2025, 11/15/2026, 11/15/2027 and 11/15/2028
  10. F10. 500 shares vest on 11/20/2026, 11/20/2027, 11/20/2028 and 11/20/2029
  11. F11. 500 shares vest on 11/19/2027, 11/19/2028, 11/19/2029 and 11/19/2030
DRIP shares acquired 11 shares Common stock acquired on 2026-07-14 via DRIP
DRIP purchase price $78.0111 per share Price for 11 GSBC common shares acquired on 2026-07-14
Shares held after transaction 2,024 shares Direct GSBC common stock ownership following DRIP acquisition
Option exercise price $51.40 Employee stock option on 5,000 underlying GSBC shares expiring 2027-03-15
Underlying shares (option grant) 5,000 shares Common stock underlying options at $51.40 exercise price
Option exercise price $52.20 Employee stock option on 2,000 underlying GSBC shares expiring 2027-11-15
Option exercise price $61.79 Employee stock option on 2,000 underlying GSBC shares expiring 2034-11-20
DRIP financial
"DRIP acquisition exempt from Section 16 reporting being reported voluntarily"
A DRIP (dividend reinvestment plan) automatically uses cash dividends to buy additional shares of the same company instead of paying the money to the investor. Like using spare change from each paycheck to buy more of something you already own, a DRIP helps holdings grow over time through compounding without requiring the investor to decide each time, which can boost long‑term returns but reduce short‑term cash income.
Section 16 reporting regulatory
"DRIP acquisition exempt from Section 16 reporting being reported voluntarily"
Option to purchase financial
"security_title": "Option to purchase""
underlying security shares financial
"underlying_security_shares": "5000.0000""
exercise price financial
"conversion_or_exercise_price": "51.4000""
The exercise price is the fixed amount at which you can buy or sell an asset, like a stock, when using an options contract. It matters because it helps determine whether exercising the option will be profitable or not, depending on the current market price. Think of it as the set price you agree on today to buy or sell later.
vesting financial
"500 shares vest on 11/19/2027, 11/19/2028, 11/19/2029 and 11/19/2030"
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.

FAQ

What insider transaction did GSBC director Debra Mallonee Hart report?

Debra Mallonee Hart reported acquiring 11 shares of GREAT SOUTHERN BANCORP (GSBC) common stock on 2026-07-14 via a DRIP transaction at $78.0111 per share, increasing her directly held position to 2,024 shares of common stock.

What is Debra Mallonee Hart’s GSBC common stock holding after this Form 4?

After the reported DRIP acquisition, Debra Mallonee Hart directly holds 2,024 shares of GREAT SOUTHERN BANCORP common stock. This figure reflects her ownership immediately following the 11-share purchase on 2026-07-14 at $78.0111 per share.

What stock options on GSBC does Debra Mallonee Hart hold according to this Form 4?

Hart holds several GSBC stock option awards, including options on 5,000 underlying shares at an exercise price of $51.40 expiring 2027-03-15 and options on 2,000 underlying shares at $52.20 expiring 2027-11-15, plus similar 2,000-share grants expiring through 2035.

Was the GSBC DRIP acquisition by Debra Mallonee Hart required Section 16 reporting?

The company states the 11-share DRIP acquisition is exempt from Section 16 reporting and is being reported voluntarily. Despite the exemption, the transaction is disclosed, providing additional transparency about Hart’s incremental share accumulation.

Were Debra Mallonee Hart’s GSBC transactions made under a Rule 10b5-1 trading plan?

The Rule 10b5-1 checkbox for this GSBC Form 4 is not checked, indicating the reported transactions are not affirmed as made under a Rule 10b5-1 trading plan. No footnote describes any separate pre-arranged trading arrangement.

What are some key terms of Debra Mallonee Hart’s longer-dated GSBC options?

Hart’s option holdings include several 2,000-share grants with exercise prices such as $61.79 expiring on 2034-11-20 and $57.29 expiring on 2035-11-19, each covering GSBC common stock as the underlying security.

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
Learn about SEC filing dates
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*
Hart Debra Mallonee

(Last)(First)(Middle)
CARE OF GREAT SOUTHERN BANK
218 SOUTH GLENSTONE AVENUE

(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)
07/14/2026
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 Stock07/14/2026J(1)V11A$78.01112,024D
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$51.4 (2)03/15/2027Common Stock5,0005,000D
Option to purchase$52.2 (3)11/15/2027Common Stock2,0007,000D
Option to purchase$55 (4)11/28/2028Common stock2,0009,000D
Option to purchase$60.15 (5)11/20/2029Common stock2,00011,000D
Option to purchase$41.74 (6)10/26/2030Common stock2,00013,000D
Option to purchase$57.98 (7)11/17/2031Common stock2,00015,000D
Option to purchase$61.55 (8)11/16/2032Common stock2,00017,000D
Option to purchase$53.22 (9)11/15/2033Common stock2,00019,000D
Option to purchase$61.79 (10)11/20/2034Common stock2,00021,000D
Option to purchase$57.29 (11)11/19/2035Common stock2,00023,000D
Explanation of Responses:
1. DRIP acquisition exempt from Section 16 reporting being reported voluntarily
2. 1,250 shares vest on 03/15/2019, 03/15/2020, 03/15/2021 and 03/15/2022
3. 500 shares vest on 11/15/2019, 11/15/2020, 11/15/2021 and 11/15/2022
4. 500 shares vest on 11/28/2020, 11/28/2021, 11/28/2022 and 11/28/2023
5. 500 shares vest on 11/20/2021, 11/20/2022, 11/20/2023 and 11/20/2024
6. 500 shares vest on 10/26/2022, 10/26/2023, 10/26/2024 and 10/26/2025
7. 500 shares vest on 11/17/2023, 11/17/2024, 11/17/2025 and 11/17/2026
8. 500 shares vest on 11/16/2024, 11/16/2025, 11/16/2026 and 11/16/2027
9. 500 shares vest on 11/15/2025, 11/15/2026, 11/15/2027 and 11/15/2028
10. 500 shares vest on 11/20/2026, 11/20/2027, 11/20/2028 and 11/20/2029
11. 500 shares vest on 11/19/2027, 11/19/2028, 11/19/2029 and 11/19/2030
Remarks:
Matt Snyder, by Power of Attorney from Debra Mallonee Hart08/18/2026
** 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)