Mark E. Hecker - 29 Jul 2026 Form 4 Insider Report for SOUTHERN MISSOURI BANCORP, INC. (SMBC)

Reporting relationship: EVP-CHIEF CREDIT OFFICER
Issuer ticker: SMBC
Reported as of: 29 Jul 2026
Net transaction value: $0
SEC form: 4
Accepted by SEC: 31 Jul 2026, 16:43:30 UTC
Prior SEC filing: 15 May 2026
Source filing: View source filing
Reporting owner signature: /s/ Mark E Hecker

Key filing fact

Mark E. Hecker filed Form 4 for SOUTHERN MISSOURI BANCORP, INC. (SMBC) on 31 Jul 2026.

Key facts

This page summarizes Mark E. Hecker's Form 4 filing for SOUTHERN MISSOURI BANCORP, INC. (SMBC).
5 reported transactions and 9 derivative rows are listed below.
Accepted by SEC: 31 Jul 2026, 16:43.

Change

Previous filing in this sequence was filed on 15 May 2026.
Current net transaction value: $0.

Research use

This tells you what this filing adds before you inspect full transaction and derivative tables.
You can trace every row back to the original SEC filing document.

Evidence

Filed on Form 4

Ownership activity is grounded in SEC Form 4 disclosures.

View source filing

Reporting Owners (1)

CIK 0001355433 Primary reporting owner

HECKER MARK E

Relationship: EVP-CHIEF CREDIT OFFICER
Address: 2991 OAK GROVE RD., POPLAR BLUFF
Signature: /s/ Mark E Hecker
Signature date: 31 Jul 2026

Reported non-derivative transactions

Shares, units, or other non-derivative securities reported in this filing.

SMBC transaction

Common Stock

Options Exercise

Transaction value
Shares: +2,000
Change %: +25%
Price: $37.31^*
Shares after: 9,895
Date: 29 Jul 2026
Ownership: Direct
Footnotes: F1

SMBC transaction

Common Stock

Options Exercise

Transaction value
Shares: +2,000
Change %: +20%
Price: $34.35^*
Shares after: 11,895
Date: 29 Jul 2026
Ownership: Direct
Footnotes: F1

SMBC transaction

Common Stock

Disposed to Issuer

Transaction value
Shares: -1,830
Change %: -15%
Price: $78.31^*
Shares after: 10,065
Date: 29 Jul 2026
Ownership: Direct
Footnotes: F1

SMBC holding

Common Stock

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after: 2,053
Date: 29 Jul 2026
Ownership: 401(k)
Footnotes: F2

SMBC holding

Common Stock

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after: 10,630
Date: 29 Jul 2026
Ownership: IRA

SMBC holding

Common Stock

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after: 185
Date: 29 Jul 2026
Ownership: Spouse IRA

Reported derivative securities

Options, warrants, convertible securities, or similar derivative positions disclosed in the filing.

SMBC transaction Derivative

Stock Option (Right to Buy)

Options Exercise

Transaction value
Shares: -2,000
Change %: -100%
Price: $34.35^*
Shares after: 0
Date: 29 Jul 2026
Ownership: Direct
Underlying class: Common Stock
Underlying amount: 2,000
Exercise price: $34.35
Footnotes: F3

SMBC transaction Derivative

Stock Option (Right to Buy)

Options Exercise

Transaction value
Shares: -2,000
Change %: -100%
Price: $37.31^*
Shares after: 0
Date: 29 Jul 2026
Ownership: Direct
Underlying class: Common Stock
Underlying amount: 2,000
Exercise price: $37.31
Footnotes: F4

SMBC holding Derivative

Stock Option (Right to Buy)

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after: 1,500
Date: 29 Jul 2026
Ownership: Direct
Underlying class: Common Stock
Underlying amount: 1,500
Exercise price: $62.96
Footnotes: F5

SMBC holding Derivative

Stock Option (Right to Buy)

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after: 1,500
Date: 29 Jul 2026
Ownership: Direct
Underlying class: Common Stock
Underlying amount: 1,500
Exercise price: $60.42
Footnotes: F6

SMBC holding Derivative

Stock Option (Right to Buy)

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after: 2,500
Date: 29 Jul 2026
Ownership: Direct
Underlying class: Common Stock
Underlying amount: 2,500
Exercise price: $40.82
Footnotes: F7

SMBC holding Derivative

Stock Option (Right to Buy)

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after: 2,500
Date: 29 Jul 2026
Ownership: Direct
Underlying class: Common Stock
Underlying amount: 2,500
Exercise price: $46.94
Footnotes: F8

SMBC holding Derivative

Stock Option (Right to Buy)

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after: 1,500
Date: 29 Jul 2026
Ownership: Direct
Underlying class: Common Stock
Underlying amount: 1,500
Exercise price: $53.82
Footnotes: F9

SMBC holding Derivative

Stock Option (Right to Buy)

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after: 3,000
Date: 29 Jul 2026
Ownership: Direct
Underlying class: Common Stock
Underlying amount: 3,000
Exercise price: $34.91
Footnotes: F10

SMBC holding Derivative

Stock Option (Right to Buy)

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after: 2,000
Date: 29 Jul 2026
Ownership: Direct
Underlying class: Common Stock
Underlying amount: 2,000
Exercise price: $37.40
Footnotes: F11

^* marks a reported price that did not pass the local price check.

Additional SEC filing notes

Filing notes and footnotes

Explanation of responses 11 footnotes

Footnote F1

On July 29, 2026, the Reporting Person exercised employee stock options to purchase an aggregate of 4,000 shares of the Issuer's common stock, consisting of options to purchase 2,000 shares at an exercise price of $37.31 per share and options to purchase 2,000 shares at an exercise price of $34.35 per share. The aggregate exercise price of $143,320 was paid through the delivery to the Issuer of 1,830 shares of common stock previously owned by the Reporting Person having an aggregate fair market value of $143,307, together with a cash payment of $13. The surrendered shares are reported in Table I as a disposition.

Footnote F2

Reflects 401(k) contributions that have occurred since the date of the reporting person's last ownership report.

Footnote F3

The options become exercisable in 20% installments over a five year period with the first installment vesting on 1/4/20. Each remaining installment vests annually thereafter.

Footnote F4

The options become exercisable in 20% installments over a five year period with the first installment vesting on 1/16/19. Each remaining installment vests annually thereafter.

Footnote F5

The options become exercisable in 20% installments over a five year period with the first installment vesting on 2/24/27. Each remaining installment vests annually thereafter.

Footnote F6

The options become exercisable in 20% installments over a five year period with the first installment vesting on 2/18/26. Each remaining installment vests annually thereafter.

Footnote F7

The options become exercisable in 20% installments over a five-year period with the first installment vesting on 2/8/25. Each remaining installment vests annually thereafter.

Footnote F8

The options become exercisable in 20% installments over a five-year period with the first installment vesting on 2/21/24. Each remaining installment vests annually thereafter.

Footnote F9

The options become exercisable in 20% installments over a five year period with the first installment vesting on 2/3/23. Each remaining installment vests annually thereafter.

Footnote F10

The options become exercisable in 20% installments over a five year period with the first installment vesting on 2/10/22. Each remaining installment vests annually thereafter.

Footnote F11

The options become exercisable in 20% installments over a five year period with the first installment vesting on 2/18/21. Each remaining installment vests annually thereafter.