红河银行股股有限公司美股招股说明书(2025-05-22版)

The following information amends and supplements information contained in the prospectus, dated November 20, 2024,relating to the offer and sale by (a) Red River Bancshares, Inc. of common stock, preferred stock, depositary shares, debt securities,warrants and units, in one or more offerings, up to a total dollar amount of $100,000,000, and (b) the selling stockholders named in the This prospectus supplement should be read in conjunction with the prospectus, and is qualified by reference to theprospectus, except to the extent that the information that is presented herein supersedes the information contained in the prospectus. Investing in our securities involves risks. You should carefully consider the Risk Factors referred to on page 7 of theprospectus and set forth in any applicable prospectus supplement and in the documents incorporated or deemed incorporated These securities are not savings accounts, deposits, or other obligations of any bank and are not insured or guaranteedby the Federal Deposit Insurance Corporation or any other government agency. Neither the Securities and Exchange Commission nor any state securities commission nor any other regulatory bodyhas approved or disapproved of these securities or passed upon the adequacy or accuracy of this prospectus. Any SELLING STOCKHOLDERS The following information is being provided to update the stockholder table and related narrative discussion in the prospectusto reflect the sale by S3 Dynamics, L.P. of 100,000 shares of common stock to us on May 22, 2025. The information set forth in the The following table sets forth to our knowledge, certain information about the selling stockholders as of May 22, 2025, basedon information furnished to us by the selling stockholders regarding the beneficial ownership of shares of our common stock and thenumber of shares of our common stock that may from time to time be offered or sold by them pursuant to this prospectus. Beneficialownership is determined in accordance with the rules and regulations of the SEC. The number of shares beneficially owned before theoffering is based on the number of shares of our common stock owned by the selling stockholders. The information regarding shares (1)Consists of 266,407 shares of Common Stock held of record by the John Charles Simpson Jr. Irrevocable Trust UA 25-NOV-03 (“JCSJ Trust”) and 259,739shares of Common Stock held of record by the Angela Katherine Simpson Irrevocable Trust UA 25-NOV-03 (“AKS Trust”). Simeon A. Thibeaux is the sole (2)Shares are held by S3 Dynamics, L.P. The sole general partner of S3 Dynamics, L.P. is S3 Management, L.L.C. which has management authority over S3Dynamics, L.P. and Mr. Thibeaux is one of three managers of S3 Management, L.L.C. Mr. Thibeaux is also the trustee or an investment advisor of trustsowning approximately 95% of the limited partnership interests in S3 Dynamics, L.P. Mr. Thibeaux has shared voting and shared dispositive power over these Information concerning the selling stockholders may change from time to time and any changed information will be set forthin supplements to this prospectus, if and when necessary. The selling stockholders may offer all, some, or none of their shares ofcommon stock. We cannot advise you as to whether the selling stockholders will in fact sell any or all of such shares of common stock.In addition, the selling stockholders may have sold, transferred, or otherwise disposed of, or may sell, transfer, or otherwise dispose of, We will pay all expenses of the registration of the shares of our common stock to be offered by us and the sellingstockholders under this prospectus including, without limitation, qualification and filing fees, and printing expenses, except that theselling stockholders will pay the registration fee associated with their securities and any underwriting discounts and selling On March 13, 2024, we entered into a stock repurchase agreement (the “March Stock Repurchase Agreement”) with the AKSTrust and the JCSJ Trust for the purchase by us of an aggregate of 200,000 shares of common stock (100,000 from each of the AKS Trust and JCSJ Trust) in a privately-negotiated transaction for a total purchase price ofapproximately$10.0 million. The March Stock Repurchase Agreement contained customary representations and warranties, On August 8, 2024, we entered into a stock repurchase agreement (the “August Stock Repurchase Agreement”) with the AKSTrust and the JCSJ Trust for the purchase by us of an aggregate of 60,000 shares of common stock (30,000 from each of the AKS Trustand JCSJ Trust) in a privately-negotiated transaction for a total purchase price of approximately $3.0 million. The August Stock On November 5, 2024, we entered into a stock repurchase agreement (the “November Stock Repurchase Agreement”) with the AKSTrust and the JCSJ Trust for the purchase by us of 50,000 shares of common stock (25,000 from each of the AKS Trust and the JCSJTrust) in a privately-negotiated tr