Origin Bancorp, Inc. — Director's Dealing 2018

May 10, 2018

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: Origin Bancorp, Inc. (OBNK)
CIK: 0001516912
Period of Report: 2017-12-20

Reporting Person: DAgostino James Samuel Jr (Director)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2017-12-20	Common Stock	A	233	—	Acquired	34788	Direct
2018-05-10	Common Stock	P	2000	$34	Acquired	36788	Direct

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock	18131	Indirect

Footnotes

F1: Represents shares of restricted stock granted to reporting person by the issuer as compensation for service as a director. The shares will vest on December 20, 2018.

F2: Includes the 233 shares of restricted stock described in explanatory note 1 and 26,544 shares held by the reporting person and the reporting person's spouse as joint tenants.

F3: Represents shares of common stock of Issuer purchased jointly by reporting person and reporting person's spouse through a directed share program in connection with the initial public offering of the Issuer's common stock, which closed on May 10, 2018. The shares were purchased at the initial public offering price of $34.00 per share. The shares are subject to a lock-up provision for a period of 180 days beginning on May 8, 2018, as required under a lock-up agreement with the underwriters of the initial public offering.

F4: Represents shares of common stock held by Houston Trust Company. The reporting person serves as Chairman of the board of directors and on the investment committee of Houston Trust Company and has shared votingand dispositive power over the shares. The reporting person disclaims any beneficial ownership in the shares of common stock held by Houston Trust Company, except to the extent of his pecuniary interest in Houston Trust Company. Pursuant to Rule 16a-1(a)(4) under the Securities Exchange Act of 1934, the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of all of the reported securities by any reporting person for purposes of Section 16 or for any other purpose.