CARLSON THOMAS J sold 3.8% of their position (680.00 shares) of GREAT SOUTHERN BANCORP, INC. on the open market

Open‑market sale worth $43.0K — a minor trim. Review remaining holdings and any 10b5‑1 plan disclosures.

S · 1 sale

CARLSON THOMAS J

Filed: 2/4/2026ACC: 0001214659-26-001187

InsiderCARLSON THOMAS JCIK 1135396

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IssuerGREAT SOUTHERN BANCORP, INC.CIK 854560

Director

Since Jul 2018

-680.00

Net shares

Net seller

$43.0K

Total sold

Open market trades

0B · 1S

Total transactions

680.00 disposed

Non-Derivative Transactions1

Common stock

Indirect

S · Sale

−680.00

Price / share

$63.17

Trade value

$42.96K

% of position

3.8%

2/3/2026

17.89K→17.21K

Total

Net shares

−680.00

Net value

-$42.96K

Security	Date	Type	Shares	Price / Share	Trade Value	% of Position	Held Before	Held After
Common stock Indirect	2/3/2026	S · Sale	−680.00	$63.17	$42.96K	3.8%	17.89K	17.21K
Total			−680.00		-$42.96K

Derivative Transactions0

No derivative transactions reported

Non-Derivative Holdings (Post-Transaction)1

Common stock

Direct

Shares owned100.00

Total

100.00 direct100.00

Security Title	Shares Owned	Ownership Type
Common stock	100.00	Direct
Total	100.00	100.00 direct

Derivative Holdings (Post-Transaction)9

Option to purchase

Direct

Underlying security

Common Stock

Underlying shares

Shares owned

Exercise price

52.2

Expiration

—

Exercise window

—

Option to purchase

Direct

Underlying security

Common stock

Underlying shares

Shares owned

18K

Exercise price

57.29

Expiration

—

Exercise window

—

Option to purchase

Direct

Underlying security

Common stock

Underlying shares

Shares owned

12K

Exercise price

61.55

Expiration

—

Exercise window

—

Option to purchase

Direct

Underlying security

Common stock

Underlying shares

Shares owned

10K

Exercise price

57.98

Expiration

—

Exercise window

—

Option to purchase

Direct

Underlying security

Common stock

Underlying shares

Shares owned

14K

Exercise price

53.22

Expiration

—

Exercise window

—

Option to purchase

Direct

Underlying security

Common stock

Underlying shares

Shares owned

Exercise price

60.15

Expiration

—

Exercise window

—

Option to purchase

Direct

Underlying security

Common stock

Underlying shares

Shares owned

Exercise price

41.74

Expiration

—

Exercise window

—

Option to purchase

Direct

Underlying security

Common stock

Underlying shares

Shares owned

Exercise price

Expiration

—

Exercise window

—

Option to purchase

Direct

Underlying security

Common stock

Underlying shares

Shares owned

16K

Exercise price

61.79

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	52.2	—	—	2K	2K
Option to purchase Direct	Common stock	57.29	—	—	2K	18K
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	53.22	—	—	2K	14K
Option to purchase Direct	Common stock	60.15	—	—	2K	6K
Option to purchase Direct	Common stock	41.74	—	—	2K	8K
Option to purchase Direct	Common stock	55	—	—	2K	4K
Option to purchase Direct	Common stock	61.79	—	—	2K	16K
Total					18K	90K