Eastern Bankshares, Inc.

We are furnishing this proxy statement (“the Proxy Statement”) in connection with the solicitation of proxies by the Board of Directors (which we sometimes refer to as “Board”) of Eastern Bankshares, Inc. (which we may also refer to as “we” “us” or “the Company” throughout this Proxy Statement; Eastern Bank is sometimes referred to herein as the “Bank,” and Eastern Bankshares, Inc. and Eastern Bank are sometimes collectively referred to herein as “Eastern”) for use at our 2026 annual meeting of shareholders (“Annual Meeting” or “the Meeting”) to be held on Monday, May 18, 2026, at 12:00 p.m. Eastern Time online via the Internet and at any adjournment of that meeting. The mailing address of our principal executive office is 125 High Street, Oliver Street Tower, 9th Floor, Boston, Massachusetts 02110. The Notice of Annual Meeting and this Proxy Statement are first being furnished to our shareholders on or about March 26, 2026.