On May 23, 2022, Cambridge Bancorp (the “Company”), entered into an Agreement and Plan of Merger with Northmark Bank (“Northmark”) and Cambridge Trust Company (“Cambridge Trust”), the Company's subsidiary bank, pursuant to which Northmark will merge with and into Cambridge Trust, with Cambridge Trust as the surviving bank (the “Merger”). Effective at the closing of the transaction, Jane C. Walsh, currently the President and Chief Executive Officer of Northmark, will be appointed to the board of directors of the Company and the board of directors of Cambridge Trust, to serve until the next annual meeting of the Company at which time Ms. Walsh will be nominated for re-election.