Form of Executive Vice President Restricted Stock Unit Agreement (Performance-Based Vesting) under the 2019 Equity Incentive Plan

This restricted stock unit agreement (“Restricted Stock Unit” or “Agreement”) is and will be subject in every respect to the provisions of the 2019 Equity Incentive Plan (the “Plan”) of Northfield Bancorp, Inc. (the “Company”), which are incorporated herein by reference and made a part hereof, subject to the provisions of this Agreement. A copy of the Plan and Plan prospectus has been provided to each person granted a Restricted Stock Unit pursuant to the Plan. The holder of this Restricted Stock Unit (the “Participant”) hereby accepts this Agreement, subject to all the terms and provisions of the Plan and this Agreement, and agrees that all decisions under and interpretations of the Plan and this Agreement by the committee appointed to administer the Plan (the “Committee”) or the Board of Directors of the Company will be final, binding and conclusive upon the Participant and the Participant’s heirs, legal representatives, successors and permitted assigns. In the event of a conflict between the terms of the Plan and this Agreement, the terms of the Plan shall control. Capitalized terms used herein but not defined will have the same meaning as in the Plan.

The total number of shares to be issued may increase or decrease depending on whether the performance conditions are satisfied at the threshold, target or maximum levels, as provided in Exhibit A. In the aggregate, a Participant can earn between 0% and 225% of the Award based upon the attainment of the performance targets as provided in Exhibit A (the “Performance Targets”). The Committee shall determine the extent to which the Performance Targets have been achieved, and the level of achievement. The Committee will take into consideration extraordinary, unusual, and/or nonrecurring items of gain or loss including: (ii) gains or losses on the disposition of a business; (iii) changes in tax or accounting principles, regulations or laws; or (iv) expenses incurred in connection with a merger, branch acquisition or similar transaction, in determining the extent to which the Performance Targets have been achieved. If the Committee determines that a change in the business, operations, corporate structure or capital structure of the Company or the manner in which the Company or its Subsidiaries conducts its business or other events or circumstances (including a merger in which the Company or a Subsidiary is the surviving entity) render current performance measures to be unsuitable, the Committee may modify such performance measures, in whole or in part, as the Committee deems appropriate. The parties to this Agreement acknowledge that such modification(s) to the performance measure(s) will not be deemed to adversely impair the rights of the Participant or beneficiary under this Agreement. The Committee has the authority to extrapolate between the threshold, target and maximum levels achieved. Notwithstanding anything to the contrary herein, the Committee, in its sole discretion exercised at the time of settlement of the Restricted Stock Unit, may settle the Restricted Stock Unit in cash equal to the then fair market value of the Restricted Stock Units earned or may settle the Restricted Stock Unit in a combination of cash and Stock.

would not otherwise have been made under the restated results may include one or more of the following:

Neither the Participant nor any other person shall by reason of participation in the Plan acquire any right in or title to any assets, funds or property of the Company or any subsidiary or other affiliate whatsoever, including any specific funds, assets, or other property which the Company or any subsidiary or other affiliate, in its sole discretion, may set aside in anticipation of a liability under the Plan.  A Participant shall have only a contractual right to the shares of Stock or cash, if any, payable or distributable under the Plan, unsecured by any assets of the Company or any subsidiary or other affiliate, and nothing contained in the Plan shall constitute a guarantee that the assets of the Company or any subsidiary or other affiliate shall be sufficient to pay any benefits to any person. No individual shall have the right to be selected to receive an Award under the Plan, or, having been so selected, to receive a future Award under the Plan.

Except as otherwise provided in the Plan, no Award under the Plan shall confer upon the holder thereof any rights as a stockholder of the Company prior to the date on which the individual fulfills all conditions for receipt of such rights and Vested Units are settled in Stock.

No dividend or distribution, including Dividend Equivalent Rights, shall be paid with respect to the Restricted Stock Units that are subject to this Award.

The Participant shall not have voting rights with respect to the Restricted Stock Units subject to this Award.

The Participant hereby accepts this Restricted Stock Unit, subject to all the terms and provisions herein and to the provisions of the Plan (as it may be amended from time to time). The Participant hereby agrees to accept as binding, conclusive, and final, all decisions and interpretations of the Committee upon any questions arising under the Plan or this Agreement. As a condition to the settlement of this Restricted Stock Unit under this Award, the Participant authorizes the Company to deduct from the settlement any taxes required to be withheld by the Company under federal, state, or local law as a result of the receipt of this Award. This Agreement shall not be deemed to constitute

a contract of employment between the parties hereto, nor shall any provision hereof restrict the right of the Company or Northfield Bank to discharge the Participant or restrict the right of the Participant to terminate his or her employment.

IN WITNESS WHEREOF, the Company has caused this instrument to be executed in its name and on its behalf as of the date of grant of the Restricted Stock Units set forth above.

The undersigned hereby accepts the foregoing Restricted Stock Unit Agreement and agrees to the terms and conditions hereof, including the terms and provisions of the Plan. The undersigned hereby acknowledges receipt of a copy of the Plan and Plan Prospectus.

If the Performance Threshold is met or exceeded, the number of shares in the Award shall be determined and settled no later than March 15^th of the year immediately following the end of the Performance Period, according to the following table: