CARLSON THOMAS J

PrivateCIK: 1135396

Location

SPRINGFIELD, MO

CARLSON THOMAS J sold 95.2% of their position (2K shares) of GREAT SOUTHERN BANCORP, INC. on the open market

Open‑market sale worth $119.8K — a major position exit. Review remaining holdings and any 10b5‑1 plan disclosures.

S · 1 sale

CARLSON THOMAS J

Filed: 1/29/2026ACC: 0001214659-26-000951

InsiderCARLSON THOMAS JCIK 1135396

→

IssuerGREAT SOUTHERN BANCORP, INC.CIK 854560

Director

Since Jul 2018

-1.88K

Net shares

Net seller

$119.8K

Total sold

1

Open market trades

0B · 1S

4

Total transactions

2.12K acquired · 4K disposed

Non-Derivative Transactions3

Common stock

Indirect

J · J

Shares

+122.00

Price / share

$62.58

Trade value

$7.63K

% of position

0.7%

1/13/2026

17.76K→17.89K

Common stock

Direct

M · Option Exercise

Shares

+2K

Price / share

$41.30

Trade value

$82.60K

% of position

2000.0%

1/28/2026

100.00→2.10K

Common stock

Direct

S · Sale

Shares

−2K

Price / share

$59.89

Trade value

$119.78K

% of position

95.2%

1/28/2026

2.10K→100.00

Total

Net shares

+122.00

Net value

-$29.55K

Security	Date	Type	Shares	Price / Share	Trade Value	% of Position	Held Before	Held After
Common stock Indirect	1/13/2026	J · J	+122.00	$62.58	$7.63K	0.7%	17.76K	17.89K
Common stock Direct	1/28/2026	M · Option Exercise	+2K	$41.30	$82.60K	2000.0%	100.00	2.10K
Common stock Direct	1/28/2026	S · Sale	−2K	$59.89	$119.78K	95.2%	2.10K	100.00
Total			+122.00		-$29.55K

Derivative Transactions1

Option to purchase

Direct

M · Option Exercise

Converts to

Common Stock

2K shares

Shares

−2K

Strike price

41.3

Held after

0.00

Exercisable

—

1/28/2026

Security	Converts To	Date	Type	Shares	Strike Price	Exercisable	Held After
Option to purchase Direct	Common Stock2K shares	1/28/2026	M · Option Exercise	−2K	41.3	—	0.00

Non-Derivative Holdings (Post-Transaction)0

No non-derivative holdings reported

Derivative Holdings (Post-Transaction)9

Option to purchase

Direct

Underlying security

Common stock

Underlying shares

2K

Shares owned

6K

Exercise price

60.15

Expiration

—

Exercise window

—

Option to purchase

Direct

Underlying security

Common stock

Underlying shares

2K

Shares owned

12K

Exercise price

61.55

Expiration

—

Exercise window

—

Option to purchase

Direct

Underlying security

Common stock

Underlying shares

2K

Shares owned

10K

Exercise price

57.98

Expiration

—

Exercise window

—

Option to purchase

Direct

Underlying security

Common stock

Underlying shares

2K

Shares owned

4K

Exercise price

55

Expiration

—

Exercise window

—

Option to purchase

Direct

Underlying security

Common Stock

Underlying shares

2K

Shares owned

2K

Exercise price

52.2

Expiration

—

Exercise window

—

Option to purchase

Direct

Underlying security

Common stock

Underlying shares

2K

Shares owned

14K

Exercise price

53.22

Expiration

—

Exercise window

—

Option to purchase

Direct

Underlying security

Common stock

Underlying shares

2K

Shares owned

8K

Exercise price

41.74

Expiration

—

Exercise window

—

Option to purchase

Direct

Underlying security

Common stock

Underlying shares

2K

Shares owned

16K

Exercise price

61.79

Expiration

—

Exercise window

—

Option to purchase

Direct

Underlying security

Common stock

Underlying shares

2K

Shares owned

18K

Exercise price

57.29

Expiration

—

Exercise window

—

Total

Underlying

18K

Owned

90K

Security	Underlying	Exercise Price	Exercise Window	Expiration	Underlying Shares	Shares Owned
Option to purchase Direct	Common stock	60.15	—	—	2K	6K
Option to purchase Direct	Common stock	61.55	—	—	2K	12K
Option to purchase Direct	Common stock	57.98	—	—	2K	10K
Option to purchase Direct	Common stock	55	—	—	2K	4K
Option to purchase Direct	Common Stock	52.2	—	—	2K	2K
Option to purchase Direct	Common stock	53.22	—	—	2K	14K
Option to purchase Direct	Common stock	41.74	—	—	2K	8K
Option to purchase Direct	Common stock	61.79	—	—	2K	16K
Option to purchase Direct	Common stock	57.29	—	—	2K	18K
Total					18K	90K

CARLSON THOMAS J — Insider Transaction (Form 4) Filed Jan 29, 2026 | Finecho