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UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934

Date of report (Date of earliest event reported): February 19, 2026

BUSINESS FIRST BANCSHARES, INC.

(Exact name of registrant as specified in its charter)

Louisiana	001-38447	20-5340628
(State of incorporation)	(Commission File Number)	(I.R.S. Employer Identification No.)

500 Laurel Street, Suite 101 Baton Rouge, Louisiana		70801
(Address of principal executive offices)		(Zip code)

Registrant’s telephone number, including area code: (225) 248-7600

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

☐ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

☐ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

☐ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

☐ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Securities registered pursuant to Section 12(b) of the Exchange Act:

Title of each class	Trading Symbol(s)	Name of each exchange on which registered
Common Stock, par value $1.00 per share	BFST	NASDAQ Global Select Market

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).

Emerging growth company ☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act ☐

5.02

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers.

(b) On February 19, 2026, Business First Bancshares, Inc. (the “Business First”) and its wholly-owned subsidiary, b1BANK, were notified of the resignation of Scott Padurean, b1BANK’s Senior Vice President and Chief Accounting Officer (“CAO”). Mr. Padurean’s resignation is not due to conflict or disagreement with Business First or b1BANK on any matter relating to Business First’s or b1BANK’s operations, policies, or practices. Rather, Mr. Padurean’s resignation is a result of his decision to pursue another professional opportunity. Mr. Padurean will continue to serve as CAO until March 6, 2026. The Company has begun the search to identify its next CAO.

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

Dated: February 24, 2026

	BUSINESS FIRST BANCSHARES, INC.


	By:	/s/ David R. Melville, III
		David R. Melville, III
		President and Chief Executive Officer