HECKER MARK E

PrivateCIK: 1355433

Location

POPLAR BLUFF, MO

HECKER MARK E (EVP-CHIEF CREDIT OFFICER) sold 2.69K shares of SOUTHERN MISSOURI BANCORP, INC. on the open market

Open‑market sale worth $202.8K. Review remaining holdings and any 10b5‑1 plan disclosures.

S · 3 sales

HECKER MARK E

Filed: 8/20/2026ACC: 0001355433-26-000009

InsiderHECKER MARK ECIK 1355433

→

IssuerSOUTHERN MISSOURI BANCORP, INC.CIK 916907

Officer· EVP-CHIEF CREDIT OFFICER

Since Feb 2026

-2.69K

Net shares

Net seller

$202.8K

Total sold

3

Open market trades

0B · 3S

3

Total transactions

2.69K disposed

Non-Derivative Transactions3

Common Stock

Indirect

S · Sale

Shares

−1.60K

Price / share

$75.49

Trade value

$120.78K

% of position

15.1%

8/18/2026

10.63K→9.03K

Common Stock

Indirect

S · Sale

Shares

−900.00

Price / share

$75.61

Trade value

$68.05K

% of position

10.0%

8/18/2026

9.03K→8.13K

Common Stock

Indirect

S · Sale

Shares

−185.00

Price / share

$75.51

Trade value

$13.97K

% of position

New position

8/18/2026

185.00→0.00

Total

Net shares

−2.69K

Net value

-$202.80K

Security	Date	Type	Shares	Price / Share	Trade Value	% of Position	Held Before	Held After
Common Stock Indirect	8/18/2026	S · Sale	−1.60K	$75.49	$120.78K	15.1%	10.63K	9.03K
Common Stock Indirect	8/18/2026	S · Sale	−900.00	$75.61	$68.05K	10.0%	9.03K	8.13K
Common Stock Indirect	8/18/2026	S · Sale	−185.00	$75.51	$13.97K	New position	185.00	0.00
Total			−2.69K		-$202.80K

Derivative Transactions0

No derivative transactions reported

Non-Derivative Holdings (Post-Transaction)2

Common Stock

Indirect

Shares owned2.05K

Common Stock

Direct

Shares owned10.06K

Total

10.06K direct·2.05K indirect12.12K

Security Title	Shares Owned	Ownership Type
Common Stock	2.05K	Indirect
Common Stock	10.06K	Direct
Total	12.12K	10.06K direct·2.05K indirect

Derivative Holdings (Post-Transaction)7

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

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

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

2.50K

Shares owned

2.50K

Exercise price

46.94

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

40.82

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

—

Total

Underlying

14.50K

Owned

14.50K

Security	Underlying	Exercise Price	Exercise Window	Expiration	Underlying Shares	Shares Owned
Stock Option (Right to Buy) Direct	Common Stock	37.40	—	—	2K	2K
Stock Option (Right to Buy) Direct	Common Stock	62.96	—	—	1.50K	1.50K
Stock Option (Right to Buy) Direct	Common Stock	53.82	—	—	1.50K	1.50K
Stock Option (Right to Buy) Direct	Common Stock	46.94	—	—	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	40.82	—	—	2.50K	2.50K
Stock Option (Right to Buy) Direct	Common Stock	34.91	—	—	3K	3K
Total					14.50K	14.50K