HECKER MARK E

PrivateCIK: 1355433

Location

POPLAR BLUFF, MO

HECKER MARK E (EVP-CHIEF CREDIT OFFICER) reported 1 transaction at SOUTHERN MISSOURI BANCORP, INC.

Review the transaction codes below to understand the nature of each event.

HECKER MARK E

Filed: 5/15/2026ACC: 0001355433-26-000004

InsiderHECKER MARK ECIK 1355433

→

IssuerSOUTHERN MISSOURI BANCORP, INC.CIK 916907

Officer· EVP-CHIEF CREDIT OFFICER

Since Feb 2026

+1.22K

Net shares

Net buyer

$0.00

Total acquired

0

Open market trades

0B · 0S

1

Total transactions

1.22K acquired

Non-Derivative Transactions1

common stock

Direct

W · W

Shares

+1.22K

Price / share

—

Trade value

—

% of position

18.3%

5/11/2026

6.67K→7.90K

Total

Net shares

+1.22K

Net value

$0.00

Security	Date	Type	Shares	Price / Share	Trade Value	% of Position	Held Before	Held After
common stock Direct	5/11/2026	W · W	+1.22K	—	—	18.3%	6.67K	7.90K
Total			+1.22K		$0.00

Derivative Transactions0

No derivative transactions reported

Non-Derivative Holdings (Post-Transaction)3

Common Stock

Indirect

Shares owned10.63K

Common Stock

Indirect

Shares owned185.00

Common Stock

Indirect

Shares owned2.05K

Total

12.86K indirect12.86K

Security Title	Shares Owned	Ownership Type
Common Stock	10.63K	Indirect
Common Stock	185.00	Indirect
Common Stock	2.05K	Indirect
Total	12.86K	12.86K indirect

Derivative Holdings (Post-Transaction)9

Stock Option (Right to Buy)

Direct

Underlying security

Common Stock

Underlying shares

1.50K

Shares owned

1.50K

Exercise price

53.82

Expiration

—

Exercise window

—

Stock Option (Right to Buy)

Direct

Underlying security

Common Stock

Underlying shares

2K

Shares owned

2K

Exercise price

37.31

Expiration

—

Exercise window

—

Stock Option (Right to Buy)

Direct

Underlying security

Common Stock

Underlying shares

2K

Shares owned

2K

Exercise price

37.40

Expiration

—

Exercise window

—

Stock Option (Right to Buy)

Direct

Underlying security

Common Stock

Underlying shares

3K

Shares owned

3K

Exercise price

34.91

Expiration

—

Exercise window

—

Stock Option (Right to Buy)

Direct

Underlying security

Common Stock

Underlying shares

1.50K

Shares owned

1.50K

Exercise price

62.96

Expiration

—

Exercise window

—

Stock Option (Right to Buy)

Direct

Underlying security

Common Stock

Underlying shares

2K

Shares owned

2K

Exercise price

34.35

Expiration

—

Exercise window

—

Stock Option (Right to Buy)

Direct

Underlying security

Common Stock

Underlying shares

2.50K

Shares owned

2.50K

Exercise price

40.82

Expiration

—

Exercise window

—

Stock Option (Right to Buy)

Direct

Underlying security

Common Stock

Underlying shares

1.50K

Shares owned

1.50K

Exercise price

60.42

Expiration

—

Exercise window

—

Stock Option (Right to Buy)

Direct

Underlying security

Common Stock

Underlying shares

2.50K

Shares owned

2.50K

Exercise price

46.94

Expiration

—

Exercise window

—

Total

Underlying

18.50K

Owned

18.50K

Security	Underlying	Exercise Price	Exercise Window	Expiration	Underlying Shares	Shares Owned
Stock Option (Right to Buy) Direct	Common Stock	53.82	—	—	1.50K	1.50K
Stock Option (Right to Buy) Direct	Common Stock	37.31	—	—	2K	2K
Stock Option (Right to Buy) Direct	Common Stock	37.40	—	—	2K	2K
Stock Option (Right to Buy) Direct	Common Stock	34.91	—	—	3K	3K
Stock Option (Right to Buy) Direct	Common Stock	62.96	—	—	1.50K	1.50K
Stock Option (Right to Buy) Direct	Common Stock	34.35	—	—	2K	2K
Stock Option (Right to Buy) Direct	Common Stock	40.82	—	—	2.50K	2.50K
Stock Option (Right to Buy) Direct	Common Stock	60.42	—	—	1.50K	1.50K
Stock Option (Right to Buy) Direct	Common Stock	46.94	—	—	2.50K	2.50K
Total					18.50K	18.50K

HECKER MARK E — Insider Transaction (Form 4) Filed May 15, 2026 | Finecho