Company: FGBI
Filing Date: 2025-08-11
Form Type: NT 10-Q
Source: 0001408534-25-000066
Chunk: 1

Company: First Guaranty Bancshares, Inc.
Filing Date: 2025-08-11
Form: NT 10-Q
Chunk 1
---
, could not be filed within the prescribed time period.

First Guaranty Bancshares, Inc. (the “Company”) was unable to timely file its Quarterly Report on Form 10-Q for the quarter ended June 30, 2025, due to the need to evaluate information concerning an event that occurred subsequent to quarter end. The Company is in the process of determining whether the information will materially impact the financial information and disclosures to be included in the Company’s Quarterly Report on Form 10-Q for the quarter ended June 30, 2025. As such, the Company will be unable to timely file its Quarterly Report on Form 10-Q for the quarter ended June 30, 2025 without unreasonable effort.

# PART IV — OTHER INFORMATION
(1) Name and telephone number of person to contact in regard to this notification

| Eric J. Dosch |     |        985 |     | 375-0308 ex. 3308 |
| (Name)        |     | -Area Code |     | -Telephone Number |

(2) Have all other periodic reports required under Section 13 or 15(d) of the Securities Exchange Act of 1934 or Section 30 of the Investment Company Act of 1940 during the preceding 12 months or for such shorter period that the registrant was required to file such report(s) been filed? If answer is no, identify report(s). ☒ Yes ☐ No

(3) Is it anticipated that any significant change in results of operations from the corresponding period for the last fiscal year will be reflected by the earnings statements to be included in the subject report or portion thereof? ☐Yes ☒ No

If so, attach an explanation of the anticipated change, both narratively and quantitatively, and, if appropriate, state the reasons why a reasonable estimate of the results cannot be made.

#### First Guaranty Bancshares, Inc.
<div align='center'>(Name of Registrant as Specified in Charter)</div>

has caused this notification to be signed on its behalf by the undersigned hereunto duly authorized.

Date: August 11, 2025 By: /s/ Eric J. Dosch

INSTRUCTION: The Form may be signed by an executive officer of the registrant or by any other duly authorized representative. The name and title of the person signing the Form shall be typed or printed beneath the signature. If the statement is signed on behalf of the registrant by an authorized representative (other than an executive