TURNER JOSEPH W - 14 Apr 2026 Form 4 Insider Report for GREAT SOUTHERN BANCORP, INC. (GSBC)

Reporting relationship
President/CEO, Director, 10%+ Owner
Issuer ticker
GSBC
Reported as of
14 Apr 2026
Net transaction value
-$408,962
Source evidence Original filing metadata and source links for verification. 4 source fields
SEC form
4
Accepted by SEC
01 May 2026, 16:35:09 UTC
Prior SEC filing
24 Feb 2026
Source filing
View source filing
Reporting owner 1 detail
Reporting owner signature
Matt Snyder, by Power of Attorney from Joseph W. Turner

Key filing fact

TURNER JOSEPH W filed Form 4 for GREAT SOUTHERN BANCORP, INC. (GSBC) on 01 May 2026.

Key facts

  • This page summarizes TURNER JOSEPH W's Form 4 filing for GREAT SOUTHERN BANCORP, INC. (GSBC).
  • 4 reported transactions and 9 derivative rows are listed below.
  • Accepted by SEC: 01 May 2026, 16:35.

Change

  • Previous filing in this sequence was filed on 24 Feb 2026.
  • Current net transaction value: -$408,962.

Research use

  • This tells you what this filing adds before you inspect full transaction and derivative tables.
  • You can trace every row back to the original SEC filing document.

Evidence

Filed on Form 4

Ownership activity is grounded in SEC Form 4 disclosures.

View source filing

Reporting Owners (1)

CIK 0001044047 Primary reporting owner

TURNER JOSEPH W

Relationship
President/CEO, Director, 10%+ Owner
Address
CARE OF GREAT SOUTHERN BANK, 218 S GLENSTONE AVE, SPRINGFIELD
Signature
Matt Snyder, by Power of Attorney from Joseph W. Turner
Signature date
01 May 2026

Reported non-derivative transactions

Shares, units, or other non-derivative securities reported in this filing.

GSBC transaction

Common stock

Options Exercise

Transaction value
Shares
+6,000
Change %
+4.4%
Price
$52.20*
Shares after
142,182
Date
30 Apr 2026
Ownership
Direct
GSBC transaction

Common stock

Sale

Transaction value
$408,962
Shares
-6,000
Change %
-4.2%
Price
$68.16
Shares after
136,182
Date
30 Apr 2026
Ownership
Direct
GSBC transaction

Common stock

Other

Transaction value
Shares
+17
Change %
+0.15%
Price
$67.57*
Shares after
11,395
Date
14 Apr 2026
Ownership
Children's Trust
Footnotes
F1
GSBC holding

Common stock

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after
2,478
Date
14 Apr 2026
Ownership
Spouse
GSBC holding

Common stock

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after
18,563
Date
14 Apr 2026
Ownership
401(k) Plan
Footnotes
F2
GSBC holding

Common stock

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after
369,738
Date
14 Apr 2026
Ownership
LTD Family Partnership

Reported derivative securities

Options, warrants, convertible securities, or similar derivative positions disclosed in the filing.

GSBC transaction Derivative

Option to purchase

Options Exercise

Transaction value
Shares
-6,000
Change %
-100%
Price
$52.20*
Shares after
0
Date
30 Apr 2026
Ownership
Direct
Underlying class
Common Stock
Underlying amount
6,000
Exercise price
$52.20
Footnotes
F3
GSBC holding Derivative

Option to purchase

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after
7,000
Date
14 Apr 2026
Ownership
Direct
Underlying class
Common Stock
Underlying amount
7,000
Exercise price
$55.00
Footnotes
F4
GSBC holding Derivative

Option to purchase

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after
14,000
Date
14 Apr 2026
Ownership
Direct
Underlying class
Common stock
Underlying amount
7,000
Exercise price
$60.15
Footnotes
F5
GSBC holding Derivative

Option to purchase

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after
21,500
Date
14 Apr 2026
Ownership
Direct
Underlying class
Common stock
Underlying amount
7,500
Exercise price
$41.74
Footnotes
F6
GSBC holding Derivative

Option to purchase

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after
29,250
Date
14 Apr 2026
Ownership
Direct
Underlying class
Common stock
Underlying amount
7,750
Exercise price
$57.98
Footnotes
F7
GSBC holding Derivative

Option to purchase

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after
37,050
Date
14 Apr 2026
Ownership
Direct
Underlying class
Common stock
Underlying amount
7,800
Exercise price
$61.55
Footnotes
F8
GSBC holding Derivative

Option to purchase

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after
44,850
Date
14 Apr 2026
Ownership
Direct
Underlying class
Common Stock
Underlying amount
7,800
Exercise price
$53.22
Footnotes
F9
GSBC holding Derivative

Option to purchase

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after
52,650
Date
14 Apr 2026
Ownership
Direct
Underlying class
Common stock
Underlying amount
7,800
Exercise price
$61.79
Footnotes
F10
GSBC holding Derivative

Option to purchase

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after
60,450
Date
14 Apr 2026
Ownership
Direct
Underlying class
Common stock
Underlying amount
7,800
Exercise price
$57.29
Footnotes
F11
* marks a reported price that did not pass the local price check.

Additional SEC filing notes

Filing notes and footnotes

Explanation of responses 11 footnotes

Footnote F1

DRIP acquisition exempt from Section 16 reporting being reported voluntarily

Footnote F2

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.

Footnote F3

1,500 shares vest on 11/15/2019, 11/15/2020, 11/15/2021 and 11/15/2022

Footnote F4

1,750 shares vest on 11/28/2020, 11/28/2021, 11/28/2022 and 11/28/2023

Footnote F5

1,750 shares vest on 11/20/2021, 11/20/2022, 11/20/2023 and 11/20/2024

Footnote F6

1,875 shares vest on 10/26/2022, 10/26/2023, 10/26/2024 and 10/26/2025

Footnote F7

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

Footnote F8

1,950 shares vest on 11/16/2024, 11/16/2025, 11/16/2026 and 11/16/2027

Footnote F9

1,950 shares vest on 11/15/2025, 11/15/2026, 11/15/2027 and 11/15/2028

Footnote F10

1,950 shares vest on 11/20/2026, 11/20/2027, 11/20/2028 and 11/20/2029

Footnote F11

1,950 shares vest on 11/19/2027, 11/19/2028, 11/19/2029 and 11/19/2030

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