Investor Presentaiton

| Company Profile As of March 31, 2021 ■ ☐ ■ Banking subsidiary: Cambridge Trust Company (1890) Private Bank & Wealth Management Firm Headquarters: Harvard Square, Cambridge, MA Client Wealth Assets: $4.3 billion. Banking Assets: $4.3 billion Gross Loans: $3.2 billion • Total Deposits: $3.7 billion ■ Noninterest income: 26% of revenue ■ NASDAQ: CATC Market Cap: $587 million* CAMBRIDGE BANCORP 3 *Market Cap is as of March 31, 2021

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