AUSBURN KEVIN R

PrivateCIK: 1700535

Location

SPRINGFIELD, MO

AUSBURN KEVIN R exercised options at GREAT SOUTHERN BANCORP, INC.

Option exercise — a mechanical event triggered by vesting or expiry. Not a discretionary conviction trade.

M · 2 exercises

AUSBURN KEVIN R

Filed: 2/24/2026ACC: 0001214659-26-002408

InsiderAUSBURN KEVIN RCIK 1700535

→

IssuerGREAT SOUTHERN BANCORP, INC.CIK 854560

Director

Since Nov 2018

0.00

Net shares

Net seller

$361.4K

Total acquired

0

Open market trades

0B · 0S

4

Total transactions

7K acquired · 7K disposed

Non-Derivative Transactions2

Common Stock

Direct

M · Option Exercise

Shares

+5K

Price / share

$51.40

Trade value

$257K

% of position

384.6%

2/23/2026

1.30K→6.30K

Common Stock

Direct

M · Option Exercise

Shares

+2K

Price / share

$52.20

Trade value

$104.40K

% of position

31.7%

2/23/2026

6.30K→8.30K

Total

Net shares

+7K

Net value

$361.40K

Security	Date	Type	Shares	Price / Share	Trade Value	% of Position	Held Before	Held After
Common Stock Direct	2/23/2026	M · Option Exercise	+5K	$51.40	$257K	384.6%	1.30K	6.30K
Common Stock Direct	2/23/2026	M · Option Exercise	+2K	$52.20	$104.40K	31.7%	6.30K	8.30K
Total			+7K		$361.40K

Derivative Transactions2

Option to purchase

Direct

M · Option Exercise

Converts to

Common Stock

5K shares

Shares

−5K

Strike price

51.4

Held after

0.00

Exercisable

—

2/23/2026

Option to purchase

Direct

M · Option Exercise

Converts to

Common Stock

2K shares

Shares

−2K

Strike price

52.2

Held after

0.00

Exercisable

—

2/23/2026

Security	Converts To	Date	Type	Shares	Strike Price	Exercisable	Held After
Option to purchase Direct	Common Stock5K shares	2/23/2026	M · Option Exercise	−5K	51.4	—	0.00
Option to purchase Direct	Common Stock2K shares	2/23/2026	M · Option Exercise	−2K	52.2	—	0.00

Non-Derivative Holdings (Post-Transaction)0

No non-derivative holdings reported

Derivative Holdings (Post-Transaction)8

Option to purchase

Direct

Underlying security

Common stock

Underlying shares

2K

Shares owned

10K

Exercise price

61.55

Expiration

—

Exercise window

—

Option to purchase

Direct

Underlying security

Common stock

Underlying shares

2K

Shares owned

12K

Exercise price

53.22

Expiration

—

Exercise window

—

Option to purchase

Direct

Underlying security

Common stock

Underlying shares

2K

Shares owned

14K

Exercise price

61.79

Expiration

—

Exercise window

—

Option to purchase

Direct

Underlying security

Common stock

Underlying shares

2K

Shares owned

4K

Exercise price

60.15

Expiration

—

Exercise window

—

Option to purchase

Direct

Underlying security

Common stock

Underlying shares

2K

Shares owned

8K

Exercise price

57.98

Expiration

—

Exercise window

—

Option to purchase

Direct

Underlying security

Common stock

Underlying shares

2K

Shares owned

6K

Exercise price

41.74

Expiration

—

Exercise window

—

Option to purchase

Direct

Underlying security

Common stock

Underlying shares

2K

Shares owned

2K

Exercise price

55

Expiration

—

Exercise window

—

Option to purchase

Direct

Underlying security

Common stock

Underlying shares

2K

Shares owned

16K

Exercise price

57.29

Expiration

—

Exercise window

—

Total

Underlying

16K

Owned

72K

Security	Underlying	Exercise Price	Exercise Window	Expiration	Underlying Shares	Shares Owned
Option to purchase Direct	Common stock	61.55	—	—	2K	10K
Option to purchase Direct	Common stock	53.22	—	—	2K	12K
Option to purchase Direct	Common stock	61.79	—	—	2K	14K
Option to purchase Direct	Common stock	60.15	—	—	2K	4K
Option to purchase Direct	Common stock	57.98	—	—	2K	8K
Option to purchase Direct	Common stock	41.74	—	—	2K	6K
Option to purchase Direct	Common stock	55	—	—	2K	2K
Option to purchase Direct	Common stock	57.29	—	—	2K	16K
Total					16K	72K

AUSBURN KEVIN R — Insider Transaction (Form 4) Filed Feb 24, 2026 | Finecho