2 unchanged sentences
(b) Not applicable.
−Removed: (c) During the three months ended September 30, 2025, no director or officer of the Company adopted or terminated a “Rule 10b5-1 trading arrangement” or “non-Rule 10b5-1 trading agreement,” as each term is defined in Item 408(a) of Regulation S-K.
+Added: (c) During the three months ended March 31, 2026, no director or officer of the Company adopted or terminated a “Rule 10b5-1 trading arrangement” or “non-Rule 10b5-1 trading agreement,” as each term is defined in Item 408(a) of Regulation S-K.
Number Description
10 unchanged sentences
on September 1, 2022).
−Removed: 10.1 Form of Voting Agreement (incorporated by reference to Exhibit 10.1 to the Current Report on Form 8-K filed by Business First Bancshares, Inc.
−Removed: on July 7, 2025).
−Removed: 10.2 Form of Director Support Agreement (incorporated by reference to Exhibit 10.2 to the Current Report on Form 8-K filed by Business First Bancshares, Inc.
−Removed: on July 7, 2025).
+Added: 10.1 Form of Subordinated Note Purchase Agreement dated April 2, 2026 by and among Business First Bancshares, Inc.
+Added: and the Purchasers named therein (incorporated by reference to Exhibit 10.1 to the Current Report on Form 8-K filed by Business First Bancshares, Inc.
+Added: on April 2, 2026).
31.1 Certification of Principal Executive Officer pursuant to Section 302 of the Sarbanes-Oxley Act of 2002*
12 unchanged sentences
BUSINESS FIRST BANCSHARES, INC.
−Removed: October 30, 2025 /s/ David R.
+Added: May 1, 2026 /s/ David R.
Melville, III
1 unchanged sentence
Chairman, President and Chief Executive Officer
−Removed: October 30, 2025 /s/ Gregory Robertson
+Added: May 1, 2026 /s/ Gregory Robertson
Gregory Robertson
1 unchanged sentence
Compared sentence by sentence after normalising whitespace, quotation marks, case and digits, so re-formatting and restated figures do not read as changed language. Wording changes appear as one removal and one addition. The current filing and the prior one are authoritative.