X0306 4 2021-11-30 0 0001810546 Eastern Bankshares, Inc. EBC 0001825655 Spiess Paul Davis 265 FRANKLIN STREET BOSTON MA 02110 1 0 0 0 Common Stock 2021-11-30 4 A 0 62096 0.00 A 112096 D Common Stock 50000 I By Spouse These shares represent restricted stock that was granted under and pursuant to Section 3.3(b) of the Issuer's Eastern Bankshares, Inc. 2021 Equity Incentive Plan. This restricted stock is scheduled to vest pro-rata on an annual basis over a five-year period. The signatory is signing on behalf of Paul D. Spiess pursuant to a Power of Attorney dated September 8, 2020, which was previously filed with the Commission. /s/ Astrid E.P. Tsang, by Power of Attorney 2021-12-02