MAPLES MARK A

PrivateCIK: 1868939

Location

SPRINGFIELD, MO

MAPLES MARK A

Filed: 11/20/2025ACC: 0001214659-25-017009

InsiderMAPLES MARK ACIK 1868939

→

IssuerGREAT SOUTHERN BANCORP, INC.CIK 854560

Other

Since Jul 2021

+4.80K

Net shares

Net buyer

$0.00

Total acquired

0

Open market trades

0B · 0S

4

Total transactions

4.80K acquired

Non-Derivative Transactions0

No non-derivative transactions reported

Derivative Transactions4

Option to purchase

Direct

A · Award

Converts to

Common stock

1.20K shares

Shares

+1.20K

Strike price

57.29

Held after

1.20K

Exercisable

—

11/19/2025

Option to purchase

Direct

A · Award

Converts to

Common stock

1.20K shares

Shares

+1.20K

Strike price

57.29

Held after

2.40K

Exercisable

—

11/19/2025

Option to purchase

Direct

A · Award

Converts to

Common stock

1.20K shares

Shares

+1.20K

Strike price

57.29

Held after

3.60K

Exercisable

—

11/19/2025

Option to purchase

Direct

A · Award

Converts to

Common stock

1.20K shares

Shares

+1.20K

Strike price

57.29

Held after

4.80K

Exercisable

—

11/19/2025

Security	Converts To	Date	Type	Shares	Strike Price	Exercisable	Held After
Option to purchase Direct	Common stock1.20K shares	11/19/2025	A · Award	+1.20K	57.29	—	1.20K
Option to purchase Direct	Common stock1.20K shares	11/19/2025	A · Award	+1.20K	57.29	—	2.40K
Option to purchase Direct	Common stock1.20K shares	11/19/2025	A · Award	+1.20K	57.29	—	3.60K
Option to purchase Direct	Common stock1.20K shares	11/19/2025	A · Award	+1.20K	57.29	—	4.80K

Non-Derivative Holdings (Post-Transaction)1

Common Stock

Direct

Shares owned0.00

Total

0.00

Security Title	Shares Owned	Ownership Type
Common Stock	0.00	Direct
Total	0.00

Derivative Holdings (Post-Transaction)5

Option to purchase

Direct

Underlying security

Common stock

Underlying shares

4.80K

Shares owned

15.82K

Exercise price

53.22

Expiration

—

Exercise window

—

Option to purchase

Direct

Underlying security

Common stock

Underlying shares

250.00

Shares owned

5.05K

Exercise price

41.74

Expiration

—

Exercise window

—

Option to purchase

Direct

Underlying security

Common stock

Underlying shares

2.37K

Shares owned

7.42K

Exercise price

57.98

Expiration

—

Exercise window

—

Option to purchase

Direct

Underlying security

Common stock

Underlying shares

3.60K

Shares owned

11.02K

Exercise price

61.55

Expiration

—

Exercise window

—

Option to purchase

Direct

Underlying security

Common stock

Underlying shares

4.80K

Shares owned

20.62K

Exercise price

61.79

Expiration

—

Exercise window

—

Total

Underlying

15.82K

Owned

59.95K

Security	Underlying	Exercise Price	Exercise Window	Expiration	Underlying Shares	Shares Owned
Option to purchase Direct	Common stock	53.22	—	—	4.80K	15.82K
Option to purchase Direct	Common stock	41.74	—	—	250.00	5.05K
Option to purchase Direct	Common stock	57.98	—	—	2.37K	7.42K
Option to purchase Direct	Common stock	61.55	—	—	3.60K	11.02K
Option to purchase Direct	Common stock	61.79	—	—	4.80K	20.62K
Total					15.82K	59.95K

MAPLES MARK A — Insider Transaction (Form 4) Filed Nov 20, 2025 | Finecho