Prosperity Bancshares, Inc. announced the completion of the merger of Lone Star State Bancshares, Inc. ("LS Bancshares") with and into Prosperity and the merger of LS Bancshares' wholly owned subsidiary, Lone Star State Bank of West Texas ("Lone Star"), headquartered in Lubbock, Texas, with and into Prosperity Bank, all effective on April 1, 2024. Alan Lackey, Lone Star Chief Executive Officer, will serve as West Texas Area President and Melisa Roberts, Lone Star Chief Lending Officer, will serve as West Texas Area Vice President, joining Mike Marshall, Prosperity Bank's West Texas Area Chairman. Additional members of Lone Star management will maintain leadership roles in the combined organization.