0001516912 2025-01-01 2025-12-31 0001516912 2025-06-30 0001516912 2026-02-13 iso4217:USD shares false 2025 FY 0001516912 10-K/A true 2025-12-31 --12-31 false 001-38487 Origin Bancorp, Inc. LA 72-1192928 500 South Service Road East Ruston, LA 71270 (318) 255-2222 Common Stock, par value $5.00 per share OBK NYSE Yes No Yes Yes Large Accelerated Filer false false true false false 1060000000.00 30983713 <div style="margin-bottom:9pt;text-indent:36pt"><span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%">Portions of the registrant’s Definitive Proxy Statement for the 2026 Annual Meeting of Stockholders of Origin Bancorp, Inc. to be held on April 22, 2026, are incorporated by reference into Part III of this Annual Report on Form 10-K to the extent stated herein. Such Definitive Proxy Statement will be filed with the Securities and Exchange Commission within 120 days after the end of the registrant’s fiscal year ended December 31, 2025.</span></div> true