John Marshall Bancorp, Inc. (NASDAQ:JMSB) (the "Company"), today announced that its Board of Directors has declared a quarterly cash dividend of $0.10 for each share of its common stock outstanding. The dividend is payable on August 26, 2026, to shareholders of record as of the close of business on August 5, 2026. Based on the current number of shares outstanding, the aggregate payment will be approximately $1.4 million.