Exhibit 99.1

Red River Bancshares, Inc. Announces

Increase to Quarterly Cash Dividend

ALEXANDRIA, La., February 26, 2026 (GLOBE NEWSWIRE) – Red River Bancshares, Inc. (Nasdaq: RRBI) (the “Company”) announced today that on February 26, 2026, its board of directors declared a quarterly cash dividend in an amount equal to $0.25 per share of common stock, up $0.10, or approximately 67%, from $0.15 per share for the prior quarter. The cash dividend is payable on March 19, 2026, to shareholders of record as of the close of business on March 9, 2026. R. Blake Chatelain, President and Chief Executive Officer of the Company, stated, “We are pleased to announce another increase to our quarterly dividend. Our growing dividend reflects our continued focus on returning capital to shareholders, while remaining committed to maintaining strong capital ratios.”

About Red River Bancshares, Inc.
The Company is the bank holding company for Red River Bank, a Louisiana state-chartered bank established in 1999 that provides a fully integrated suite of banking products and services tailored to the needs of our commercial and retail customers. Red River Bank operates from a network of 28 banking centers throughout Louisiana and two combined loan and deposit production offices, one each in New Orleans, Louisiana and Lafayette, Louisiana. Banking centers are located in the following Louisiana markets: Central, which includes the Alexandria metropolitan statistical area (“MSA”); Northwest, which includes the Shreveport-Bossier City MSA; Capital, which includes the Baton Rouge MSA; Southwest, which includes the Lake Charles MSA; the Northshore, which includes Covington; Acadiana, which includes the Lafayette MSA; and New Orleans.

Contact:

Julia E. Callis

Executive Vice President, General Counsel & Corporate Secretary

318-561-4042

julia.callis@redriverbank.net

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RED RIVER BANCSHARES INC 8-K