Form 4 Filing for Mark Martinelli

Mark Martinelli, a director at Chain Bridge Bancorp Inc., reported the acquisition of 400 shares of Class A Common Stock on July 29, 2026. The transaction, coded as 'P' for purchase, occurred at a price of $44.00 per share. Following this transaction, Mr. Martinelli directly owns 3000 shares of the company's common stock. The filing, designated as a Form 4, indicates a change in beneficial ownership for a company insider.