Origin Bancorp, Inc. — Director's Dealing 2026

Feb 24, 2026

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: Origin Bancorp, Inc. (OBK)
CIK: 0001516912
Period of Report: 2026-02-20

Reporting Person: Wallace Willliam J IV (Chief Financial Officer)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2026-02-20	Common Stock	M	802	—	Acquired	16151	Direct
2026-02-20	Common Stock	F	277	$43.97	Disposed	15874	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2026-02-20	Restricted Stock Units	$	M	802	Disposed		Common Stock (802)	Direct
2026-02-20	Restricted Stock Units	$	A	2843	Acquired		Common Stock (2843)	Direct

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock	2994	Indirect

Footnotes

F1: Restricted stock units convert into common stock on a one-for-one basis.

F2: Represents the number of common stock that have been withheld by the issuer to satisfy its income tax withholding and remittance obligations in connection with the net settlement of the restricted stock units and does not represent a sale.

F3: Granted on February 20, 2025, vesting ratably over three years with the first vest date of February 20, 2026.

F4: Each restricted stock unit represents the contingent right to receive, at settlement, one share of the issuer's common stock or cash equal to the fair value thereof (calculated pursuant to the incentive
agreement), as determined by the issuer.

F5: Granted on February 20, 2026, vesting ratably over three years with the first vest date of February 20, 2027.