SEC Form 4 · accession 0001355433-26-000006

SOUTHERN MISSOURI BANCORP, INC. · SMBC

Statement of changes in beneficial ownership, as filed. Original on EDGAR ↗

Reporting owner

Mark E Hecker

Officer — EVP-CHIEF CREDIT OFFICER

Period of report

Jul 29, 2026

Accepted (ET)

Jul 31, 2026 · 4:43 pm EDT

Rule 10b5-1 plan

box not checked

Issuer CIK

0000916907

Table I — non-derivative securities

Security	Date	Code	Shares	Price	A/D	Owned after	D/I	Nature of ownership
Common Stock^F1	Jul 29, 2026	M	2,000	$37.31	A	9,895	D
Common Stock^F1	Jul 29, 2026	M	2,000	$34.35	A	11,895	D
Common Stock^F1	Jul 29, 2026	D	1,830	$78.31	D	10,065	D
Common Stock^F2	holding	—	—		—	2,053	I	401(k)
Common Stock	holding	—	—		—	10,630	I	IRA
Common Stock	holding	—	—		—	185	I	Spouse IRA

Table II — derivative securities

Security	Conv. / exercise price	Date	Code	Shares	A/D	Exercisable	Expires	Underlying	Underlying shares	Owned after	D/I
Stock Option (Right to Buy)^F3	$34.35	Jul 29, 2026	M	2,000	D	—	Jan 4, 2029	Common Stock	2,000	0	D
Stock Option (Right to Buy)^F4	$37.31	Jul 29, 2026	M	2,000	D	—	Jan 16, 2028	Common Stock	2,000	0	D
Stock Option (Right to Buy)^F5	$62.96	holding	—	—	—	—	Feb 24, 2036	Common Stock	1,500	1,500	D
Stock Option (Right to Buy)^F6	$60.42	holding	—	—	—	—	Feb 18, 2035	Common Stock	1,500	1,500	D
Stock Option (Right to Buy)^F7	$40.82	holding	—	—	—	—	Feb 8, 2034	Common Stock	2,500	2,500	D
Stock Option (Right to Buy)^F8	$46.94	holding	—	—	—	—	Feb 21, 2033	Common Stock	2,500	2,500	D
Stock Option (Right to Buy)^F9	$53.82	holding	—	—	—	—	Feb 3, 2032	Common Stock	1,500	1,500	D
Stock Option (Right to Buy)^F10	$34.91	holding	—	—	—	—	Feb 10, 2031	Common Stock	3,000	3,000	D
Stock Option (Right to Buy)^F11	$37.40	holding	—	—	—	—	Feb 18, 2030	Common Stock	2,000	2,000	D

Explanation of responses

F1On 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.
F10The 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.
F11The 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.
F2Reflects 401(k) contributions that have occurred since the date of the reporting person's last ownership report.
F3The 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.
F4The 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.
F5The 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.
F6The 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.
F7The 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.
F8The 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.
F9The 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.