Exhibit 10.6

FORM OF AMENDED AND RESTATED

SUPPLEMENTAL EXECUTIVE RETIREMENT AGREEMENT

This Amended and Restated Supplemental Executive Retirement Agreement (the “Agreement”) is dated this 28^th day of July, 2014, by and between East Boston Savings Bank, a corporation organized and existing under the laws of the Commonwealth of Massachusetts (the “Bank”) and             (the “Director”). The Agreement is effective January 1, 2005.

WHEREAS, the Director originally entered into a supplemental executive retirement agreement with the Bank on December 9, 2004, effective as of January 1, 2005 (the “Original Agreement”); and

WHEREAS, in connection with the conversion of Meridian Financial Services, Incorporate (the “MHC”) from the mutual holding company to the stock holding company form of organization, the Bank desires to amend and restate the Original Agreement in order to (i) incorporate the First Amendment, effective April 18, 2006, and the Second Amendment, effective January 1, 2008, and (ii) remove any reference to the MHC structure and to make certain other changes; and

WHEREAS, the Director has agreed to such amendment and restatement of the Original Agreement; and

WHEREAS, the Board of Directors of the Bank and the Director believe it is in the best interests of the Bank to enter into the Agreement in order to reinforce and reward the Director for his service and dedication to the continued success of the Bank.

NOW, THEREFORE, in consideration of the mutual covenants herein contained, the parties hereby agree as follows:

(a) “Actuarial Equivalent” means a benefit of equivalent value when computed on the basis of an interest rate of 6.5% and the 1983 Group Annuity Mortality Table, Unisex (50% male, 50% female), with no setback; provided, however, that for purposes of determining the value of a lump sum distribution, the following assumptions will be used:

(b) “Accrued Benefit” means 50% of the Director’s Final Average Compensation if the Director has completed 120 Months of Service. If the Director has not completed 120 Months of Service, his Accrued Benefit shall be determined by multiplying 50% of his Final Average Compensation by a fraction, the numerator of which shall be his actual Months of Service and the denominator of which shall be 120.

(c) “Code” means the Internal Revenue Code of 1986, as amended from time to time.

(d) “Final Average Compensation” means the average of the Director’s total annual fees from the Bank and Meridian Bancorp, Inc., a Maryland corporation (and its predecessor Meridian Financial Services, Inc.) (the “Holding Company”) and all their subsidiaries and affiliates, as reported on Form 1099, for the three calendar years during the Director’s service, whether or not consecutive, for which the Director’s annual fees were the highest.

(e) “Months of Service” means months (including partial months) of service as a Director of the Bank or the Holding Company. The date the Director was first elected is January 15, 2002.

(f) “Normal Form” means an unreduced life annuity with 50% spousal survivor annuity.

(g) Normal Retirement Date” shall mean December 31 of the calendar year in which the Director attains age 72.

(h) “Separation from Service” is deemed to occur when the Bank and the Director reasonably anticipate that no further services would be performed by the Director for the Bank after a certain date or that the level of bona fide service the Director would perform for the Bank after such date (whether as an employee or as an independent contractor) would permanently decrease to no more than 20 percent of the average level of bona fide services performed by the Director for the Bank over the immediately preceding 36-month period (or period of employment, if less than 36 months).

(a) Retirement. If the Director continues to provide service to the Bank until his retirement at his Normal Retirement Date, the Bank will pay to the Director annually, a benefit payable in the Normal Form in equal monthly installments commencing on the first day of the month next following the Director’s Separation from Service, an amount equal to his Accrued Benefit.

(b) Death of the Director.

(i) If the Director dies while in service, the Bank will pay to the Director’s surviving spouse a benefit payable for her life assuming that the Director had retired the day before his death and had elected to receive his Accrued Benefit (as reduced by 2.5% each year and pro-rated for a partial year if the death occurs before the Director’s Normal Retirement Date) in the form of a joint and 100% spousal survivor annuity. The Director may elect that payment of the death benefit be made in a lump sum or a life annuity with 120 monthly benefits guaranteed on an Actuarially Equivalent basis. If there is no surviving spouse, the Bank shall pay the Director’s estate a lump sum which is the Actuarial Equivalent value of the Accrued Benefit payable over ten (10) years.

(ii) If the Director dies following the commencement of the payment of benefits under this Agreement, death benefits, if any, will be determined pursuant to the form of benefit payment in effect at the time of death.

(c) Disability of the Director. If the Director becomes permanently and totally disabled, as determined by a physician mutually acceptable to the Bank and the Director, and is unable to continue to serve as a Director, the Director shall be entitled to receive the benefit that would be payable under Section 2(a) above if the Director had retired at his Normal Retirement Date with 120 Months of Service. Payments shall commence on the first day of the month next following the Director’s disability.

(d) Other Termination. If the Director ceases to provide services to the Bank prior to his Normal Retirement Datefor any reason, other than death or disability, the Bank will pay to the Director annually, a benefit payable in the Normal Form in equal monthly installments commencing on the first day of the month next following the Director’s Separation from Service, an amount equal to his Accrued Benefit, reduced by 2.5% for each year (and pro-rated for a partial year) benefits commence before the Director’s Normal Retirement Date.

(e) Optional Form of Payment. In lieu of the Normal Form provided by the foregoing provisions of this Paragraph 2, with the consent of the Bank, the Director may elect in advance an optional form of payment which is the Actuarial Equivalent of the Normal Form to which the Director is entitled, which optional form of payment may be a lump sum or a life annuity with 120 monthly benefits guaranteed. Such election shall be made within 30 days of the date of this Agreement.

Except as otherwise provided by the Agreement, neither the Director nor his surviving spouse shall have any right to commute, sell, assign, transfer or otherwise convey the right to receive any payments hereunder, which payments and the right thereto are expressly declared to be nonassignable and nontransferable.

The benefits provided under the Agreement constitute a mere promise by the Bank to make payments in the future, and the rights of the Director hereunder shall be those of a general unsecured creditor of the Bank. Nothing contained herein shall be construed to create a trust of any kind or to render the Bank a fiduciary with respect to the Director. The Bank shall not be required to maintain any fund or segregate any amount or in any other way currently fund the future payment of any benefit provided under the Agreement, and nothing contained herein shall be construed to give the Director or any other person any right to any specific assets of the Bank or of any other person.

The Agreement shall be construed under and governed by the laws of the Commonwealth of Massachusetts.

This Agreement constitutes the entire agreement between the Bank and the Director concerning the subject matter hereof and supersedes the Original Agreement; provided, however, that the payment election form previously executed shall remain in full force and effect.

EXECUTED under seal as of the day and year first above written, in the case of the Bank by its duly authorized officer.

This Agreement is joined in by Meridian Bancorp, Inc., a Maryland corporation, for purposes of fulfilling the obligations of the Bank under Paragraph 2 hereof.