X0303 4/A 2010-06-19 2010-06-22 0001405049 United Financial Bancorp, Inc. UBNK 0001325612 Clark William 95 ELM STREET WEST SPRINGFIELD MA 01089 1 SVP of Affiliate Common Stock 2010-06-19 4 F 0 1007 14.39 D 16483 D Shares are being withheld from vesting total of grant for tax withholding purposes. /s/ William Clark 2010-06-24