The Board of Directors of Brookline Bancorp, Inc. announced the retirements of David C. Chapin, John A. Hackett, John L. Hall, II, and Peter O. Wilde effective as of December 31, 2023, notice of which was provided to the Board at its regular meeting on October 25, 2023. Messrs. Chapin, Hackett, Hall, and Wilde are longstanding directors of the Company and Brookline Bank who have made valuable contributions to the Company and Brookline Bank throughout their terms. Effective upon Messrs.

Chapin, Hackett, Hall, and Wilde's retirement as directors, the size of the company's Board of Directors will be reduced from fifteen to eleven directors.