Sec Form 4 Filing - Paulson David C @ United Financial Bancorp, Inc. - 2017-11-22

FORM 4 Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940

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1. Name and Address of Reporting Person Paulson David C 2. Issuer Name and Ticker or Trading Symbol United Financial Bancorp, Inc. [ UBNK] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) _____ Director _____ 10% Owner X __ Officer (give title below) _____ Other (specify below) EVP (Last) (First) (Middle) UNITED FINANCIAL BANCORP, INC., 225 ASYLUM STREET 3. Date of Earliest Transaction (MM/DD/YY) 11/22/2017 (Street) HARTFORD, CT06103 4. If Amendment, Date Original Filed (MM/DD/YY) 6. Individual or Joint/Group Filing (Check Applicable Line) __ X __ Form filed by One Reporting Person _____ Form filed by More than One Reporting Person (City) (State) (Zip)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned 1.Title of Security (Instr. 3) 2. Transaction Date (MM/DD/YY) 2A. Deemed Execution Date, if any (MM/DD/YY) 3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4) Code V Amount (A) or (D) Price Common Stock 11/22/2017 A 3,838 A $ 0 34,755 D ( 1 ) ( 2 ) ( 3 ) ( 4 ) ( 5 ) ( 6 ) ( 7 ) Common Stock 11/22/2017 A 3,231 A $ 0 37,986 D ( 1 ) ( 2 ) ( 3 ) ( 4 ) ( 5 ) ( 6 ) ( 8 ) Common Stock 807.261 I ( 9 ) By United Bank 401(k) Plan

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned ( e.g. , puts, calls, warrants, options, convertible securities) 1. Title of Derivative Security (Instr. 3) 2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (MM/DD/YY) 3A. Deemed Execution Date, if any (MM/DD/YY) 4. Transaction Code (Instr. 8) 5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4, and 5) 6. Date Exercisable and Expiration Date (MM/DD/YY) 7. Title and Amount of Underlying Securities (Instr. 3 and 4) 8. Price of Derivative Security (Instr. 5) 9. Number of Derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4) 10. Ownership Form of Derivative Security: Direct (D) or Indirect (I) (Instr. 4) 11. Nature of Indirect Beneficial Ownership (Instr. 4) Code V (A) (D) Date Exercisable Expiration Date Title Amount or Number of Shares

Reporting Owners Reporting Owner Name / Address Relationships Director 10% Owner Officer Other Paulson David C UNITED FINANCIAL BANCORP, INC. 225 ASYLUM STREET HARTFORD, CT06103 EVP Signatures /s/ Marliese L. Shaw by POA 11/27/2017 Signature of Reporting Person Date

Explanation of Responses:

( 1 )Includes 3,389 restricted stock shares granted pursuant to the United Financial Bancorp, Inc. 2015 Omnibus Stock Incentive Plan and cliff vest on December 31, 2019, if, and only if, United Financial Bancorp, Inc. meets certain performance goals. ( 2 )Includes 5,386 restricted stock shares granted pursuant to the United Financial Bancorp, Inc. 2015 Omnibus Stock Incentive Plan and cliff vest on December 31, 2018, if, and only if, United Financial Bancorp, Inc. meets certain performance goals. ( 3 )Includes 11,196 Shares of Restricted Stock granted pursuant to the Rockville Financial, Inc.'s 2012 Stock Incentive Plan. The original grant of 17,019 shares will vest in four equal annual installments of 25%, with the first installment to vest on May 12, 2014 and an additional 25% to vest on each annual anniversary of Mr. Paulson's hire date of March 3rd, 2014. The reported number of shares is net of 5,823 shares withheld by the Issuer for tax withholding purposes. ( 4 )Includes 2,790 shares of Restricted Stock granted pursuant to the Rockville Financial, Inc.'s 2012 Stock Incentive Plan. The original grant of 5,673 shares cliff vested on December 31, 2016, if and only if, United Financial Bancorp, Inc. meets certain performance goals. Not all requirements were met, and as a result, this transaction represents the distribution of the original 5,673 granted shares decreased by 1,419 shares for not meeting those performance requirements. The reported number of shares is net of 1,464 shares withheld by the Issuer for tax withholding purposes. ( 5 )Includes 3,389 restricted shares granted pursuant to the United Financial Bancorp, Inc. 2015 Omnibus Stock Incentive Plan. The original grant of 3,389 shares vest in equal 33% increments over a three year period, the first 33% vesting on November 22, 2017 and the subsequent vesting on each on each annual anniversary of the grant date thereafter. ( 6 )Includes 4,767 restricted shares granted pursuant to the United Financial Bancorp, Inc. 2015 Omnibus Stock Incentive Plan. The original grant of 5,386 shares vest in equal 33% increments over a three year period, the first 33% vesting on November 18, 2016 and the subsequent vesting on each on each annual anniversary of the grant date thereafter. The reported number of shares is net of 619 shares withheld by the Issuer for tax withholding purposes. ( 7 )Transaction represents 3,838 restricted shares granted pursuant to the United Financial Bancorp, Inc. 2015 Omnibus Stock Incentive Plan. The original grant of 3,838 shares vest in equal 33% increments over a three year period, the first 33% vesting on November 22, 2018 and the subsequent vesting on each on each annual anniversary of the grant date thereafter. ( 8 )Transaction represents 3,231 restricted stock shares granted pursuant to the United Financial Bancorp, Inc. 2015 Omnibus Stock Incentive Plan and cliff vest on December 31, 2020, if, and only if, United Financial Bancorp, Inc. meets certain performance goals. ( 9 )Shares allocated to the account under the United Bank 401(k) Plan, of which all shares are vested.

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