X0306 4 2016-07-25 0 0001049782 BROOKLINE BANCORP INC BRKL 0001250513 PERRAULT PAUL A 131 CLARENDON STREET BOSTON MA 02117 1 1 0 0 Chief Executive Officer Common Stock 2016-07-25 4 A 0 22526 0 A 307774 D Common Stock 2016-07-25 4 A 0 22527 0 A 330301 D Common Stock 3274 I By ESOP Restricted stock shares granted pursuant to the Brookline Bancorp, Inc. 2014 Equity Incentive Plan. The shares vest in three equal installments on an annual basis, commencing one year from the date of grant. Performance based restricted stock shares granted pursuant to the Brookline Bancorp, Inc. 2014 Equity Incentive Plan. The shares vest on the third anniversary of the date of grant based on certain performance based metrics. Reflects ESOP allocations and distributions that have occurred since the date of the reporting person's last ownership report. Includes shares of restricted stock granted pursuant to the Brookline Bancorp, Inc. 2011 Restricted Stock Plan and the 2014 Equity Incentive Plan. Paul A. Perrault, By Marissa S. Frerk, POA 2016-07-26