Exhibit 99.1 Chain Bridge Bancorp, Inc. Reports Second Quarter 2025 Financial Results McLean, Virginia — July 28, 2025 Chain Bridge Bancorp, Inc. (NYSE: CBNA) (the "Company"), the holding company for Chain Bridge Bank, N.A. (the "Bank"), today announced financial results for the second quarter of 2025 and the six months ended June 30, 2025. Peter G. Fitzgerald, Chairman of Chain Bridge Bancorp, Inc., commented: "The second quarter began with deposit outflows from political organization accounts, as describe ...