Adjournment of Lone Star Bank Special Meeting of Shareholders Until July 11, 2023

HOUSTON, June 07, 2023 (GLOBE NEWSWIRE) -- First Guaranty Bancshares, Inc. (Nasdaq: FGBI) (“First Guaranty”) previously filed a proxy statement/prospectus with respect to a special meeting of the shareholders of Lone Star Bank (“Lone Star”) to be held on Tuesday, June 13, 2023 at 10:00 a.m., local time, at the Hilton Houston Westchase, 9999 Westheimer Rd., Houston, Texas 77042 (the “Special Meeting”) to, among other things, vote on a proposal to approve the Agreement and Plan of Merger, dated January 6, 2023 (the “Merger Agreement”), by and among First Guaranty, First Guaranty Bank, a Louisiana state bank and First Guaranty’s wholly-owned banking subsidiary, and Lone Star, pursuant to which Lone Star will merge with and into First Guaranty Bank, with First Guaranty Bank surviving the merger (the “Merger”), and the transactions contemplated by the Merger Agreement, including the Merger (the “Merger Proposal”).

Lone Star is announcing that the Special Meeting will be convened and immediately adjourned, without any business being conducted. The Special Meeting will be adjourned until 10:00 a.m., local time, on Tuesday, July 11, 2023 (as reconvened, the “Reconvened Special Meeting”), to solicit additional proxies in favor of the Merger Proposal and to give Lone Star shareholders sufficient time to consider the information furnished by First Guaranty to the Lone Star shareholders and filed by First Guaranty with the Securities and Exchange Commission (the “SEC”) pursuant to Rule 425 on June 2, 2023. The Reconvened Special Meeting will be held at the same location of 9999 Westheimer Rd., Houston, Texas 77042.

The record date will remain April 19, 2023, and Lone Star shareholders of record as of the record date will continue to be entitled to vote at the Reconvened Special Meeting. Lone Star shareholders of record on the record date may attend the Reconvened Special Meeting, including to vote and/or submit questions during the Reconvened Special Meeting. Lone Star shareholders who have previously cast their votes do not need to vote again; however, Lone Star shareholders who have previously cast their votes but wish to change their votes may vote again by submitting another proxy card to Lone Star or by attending and voting at the Reconvened Special Meeting. Lone Star shareholders holding shares as of the record date are encouraged to vote prior to and during the pendency of the Reconvened Special Meeting. Lone Star shareholders who have previously cast their votes but wish to change their votes by submitting another proxy card to Lone Star may obtain another proxy card from Lone Star by contacting Brent McRoberts, the Executive Vice President–Controller/Cashier of Lone Star, at Lone Star’s principal office, located at 2600 South Gessner Road, Suite 100, Houston, Texas 77063, E-mail: [e-mail], Telephone: [phone].