# EDGAR Filing Document

**Accession Number:** 0001624322
**File Stem:** 9999999995-25-002976
**Filing Date:** 2025-9
**Character Count:** 1330
**Document Hash:** d78db6e73448393e0df2ff6a63b0e145
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**9999999995-25-002976.hdr.sgml**: 20250917

**ACCESSION NUMBER**: 9999999995-25-002976

**CONFORMED SUBMISSION TYPE**: EFFECT

**PUBLIC DOCUMENT COUNT**: 1

**FILED AS OF DATE**: 20250916

**DATE AS OF CHANGE**: 20250917

**EFFECTIVENESS DATE**: 20250916

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** Business First Bancshares, Inc.
- **CENTRAL INDEX KEY:** 0001624322
- **STANDARD INDUSTRIAL CLASSIFICATION:** STATE COMMERCIAL BANKS [6022]
- **ORGANIZATION NAME:** 02 Finance
- **EIN:** 205340628
- **STATE OF INCORPORATION:** LA
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** EFFECT
- **SEC ACT:** 1933 Act
- **SEC FILE NUMBER:** 333-289858
- **FILM NUMBER:** 251318718

**BUSINESS ADDRESS:**
- **STREET 1:** 500 LAUREL STREET
- **STREET 2:** SUITE 101
- **CITY:** BATON ROUGE
- **STATE:** LA
- **ZIP:** 70801
- **BUSINESS PHONE:** 225-248-7600

**MAIL ADDRESS:**
- **STREET 1:** 500 LAUREL STREET
- **STREET 2:** SUITE 101
- **CITY:** BATON ROUGE
- **STATE:** LA
- **ZIP:** 70801

### UNITED STATES
### SECURITIES AND EXCHANGE COMMISSION
**Washington, D.C. 20549**

## Notice of Effectiveness

**Date:** September 16, 2025

**Time:** 13:30:00

**Form Type:** S-4

---

**CIK:** 0001624322

**Company Name:** Business First Bancshares, Inc.

**File Number:** 333-289858