Document:

EX-10.9

 Exhibit 10.9 

AMENDED AND RESTATED 

EMPLOYMENT AGREEMENT 

THIS AMENDED AND RESTATED EMPLOYMENT AGREEMENT (the “Agreement”) is made and entered into as of the 28th day of July, 2014 by
and between EAST BOSTON SAVINGS BANK, a bank organized under the laws of the Commonwealth of Massachusetts with its headquarters located in East Boston, Massachusetts (the “Bank”), and Edward J. Merritt (the “Executive”).
The Agreement is effective as of July 20, 2009 (the “Effective Date”). 
 WITNESSETH 

WHEREAS, the Executive originally entered into an employment agreement with the Bank on July 20, 2009 (the “Original
Agreement”); and 
 WHEREAS, in connection with the conversion of Meridian Financial Services, Incorporated (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 remove any reference to the MHC structure and to make certain other changes;
and 
 WHEREAS, the Original Agreement may be amended in accordance with Section 18 of the Original Agreement; and 

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

WHEREAS, the Board of Directors of the Bank and the Executive believe it is in the best interests of the Bank to enter into the
Agreement in order to reinforce and reward the Executive for his service and dedication to the continued success of the Bank. 
 NOW
THEREFORE, in consideration of the mutual agreements herein contained, and upon the other terms and conditions hereinafter provided, the parties hereby agree as follows: 

1. Employment. The Bank agrees to employ the Executive and the Executive agrees to be employed by the Bank on the terms and conditions
set forth in this Agreement, effective as of the Merger Effective Time. 
 2. Duties and Responsibilities. The Executive shall serve
the Bank as President, Mt. Washington Division, and as a member of the senior management team and shall serve under the direction of the Board of Directors of the Bank (the “Board of Directors”) and under the direction of and report to the
President and Chief Executive Officer of the Bank. The Executive shall also serve the Bank in additional services, duties and responsibilities as the Executive may be requested by the President and Chief Executive Officer or Board of Directors. In
such capacity or capacities, the Executive shall perform such services and duties in connection with the business, affairs and operations of the Bank as may be assigned or delegated to the Executive from time to time by or under the authority of the
President and Chief Executive Officer or 

 
Board of Directors, and the Executive shall adhere to all policies established by the Board of Directors or Committees thereof at all times. The Executive’s office shall be located at 455
West Broadway, Boston, Massachusetts. 
 3. Term. 

(a) The term of this Agreement shall be (i) the initial term, consisting of the period commencing on the Effective Date and ending on the
second anniversary of the Effective Date, plus (ii) any and all extensions of the initial term made pursuant to this Section 3. 

(b) Commencing on the first anniversary date of the Effective Date (the “Anniversary Date”) and continuing on each Anniversary Date
thereafter, the term of this Agreement shall automatically extend for an additional year such that the remaining term shall be two (2) years, unless written notice of non-renewal is provided to Executive by the Board at least thirty
(30) days prior to any such Anniversary Date, in which case the term of this Agreement will become fixed and will terminate at the end of the one (1) year period following the Anniversary Date. Prior to each Anniversary Date, the
disinterested members of the Board will conduct a comprehensive performance evaluation and review of Executive for purposes of determining whether to allow this Agreement to automatically extend, and the results thereof will be included in the
minutes of the Board’s meeting. 
 4. Compensation and Benefits. The regular compensation and benefits payable to the Executive
under this Agreement shall be as follows: 
 (a) Salary. For all services rendered by the Executive under this Agreement, the Bank
shall pay the Executive a salary (the “Salary”) at the annual rate of $314,394, subject to increase from time to time in the discretion of the Board of Directors. The Salary shall be payable in periodic installments in accordance with the
Bank’s usual practice for its senior executives. 
 (b) Bonus. The Executive shall be entitled to participate in an annual
incentive program established by the Board of Directors with such terms as may be established in the sole discretion of the Board of Directors. 

(c) Regular Benefits. The Executive shall also be entitled to participate in any employee benefit plans, medical insurance plans, life
insurance plans, disability income plans, retirement plans, vacation plans, expense reimbursement plans and other benefit plans or credit card privileges which the Bank may from time to time have in effect for its senior executives. Such
participation shall be subject to the terms of the applicable plan documents, generally applicable policies of the Bank, applicable law and the discretion of the Board of Directors or any administrative or other committee provided for in or
contemplated by any such plan. Nothing contained in this Agreement shall be construed to create any obligation on the part of the Bank to establish any such plan or to maintain the effectiveness of any such plan which may be in effect from time to
time. 

  
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 (d) Taxation of Payments and Benefits. The Bank shall undertake to make deductions,
withholdings and tax reports with respect to payments and benefits under this Agreement to the extent that it reasonably and in good faith believes that it is required to make such deductions, withholdings and tax reports. Payments under this
Agreement shall be in amounts net of any such deductions or withholdings. Nothing in this Agreement shall be construed to require the Bank to make any payments to compensate the Executive for any adverse tax effect associated with any payments or
benefits or for any deduction or withholding from any payment or benefit. 
 (e) Exclusivity of Salary and Benefits. The Executive
shall not be entitled to any payments or benefits other than those provided under this Agreement. 
 (f) SERP. The Executive shall be
entitled to receive benefits under a supplemental executive retirement plan., . 
 (g) Joint Beneficiary Designation Agreement. The
Executive shall be entitled to the benefits provided under the terms of the Joint Beneficiary Designation Agreement, effective as of September 1, 2004, between the Executive and Mt. Washington Cooperative Bank (“MWCB”), which the Bank
has agreed to assume and honor. 
 (h) [Reserved]. 

(i) [Reserved]. 
 5. Extent
of Service. During the Executive’s employment under this Agreement, the Executive shall, subject to the direction and supervision of the Board of Directors, devote the Executive’s full business time, best efforts and business judgment,
skill and knowledge to the advancement of the Bank’s interests and to the discharge of the Executive’s duties and responsibilities under this Agreement. The Executive shall not engage in any other business activity, except as may be
approved by the Board of Directors; provided that nothing in this Agreement shall be construed as preventing the Executive from: 
 (a)
investing the Executive’s assets in any company or other entity in a manner not prohibited by Section 9(d) and in such form or manner as shall not require any material activities on the Executive’s part in connection with the
operations or affairs of the companies or other entities in which such investments are made; 
 (b) engaging in religious, charitable or
other community or non-profit activities that do not impair the Executive’s ability to fulfill the Executive’s duties and responsibilities under this Agreement; or 

(c) conducting bookkeeping and other services for family-related businesses. 

6. Termination. The Executive’s employment under this Agreement shall terminate under the following circumstances set forth in
this Section 6. 

  
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 (a) Termination by the Bank for Cause. The Executive’s employment under this
Agreement may be terminated for Cause without further liability on the part of the Bank effective immediately upon a vote of the Board of Directors and written notice to the Executive. Only the following shall constitute “Cause” for such
termination: 
 (i) the conviction of the Executive for any felony involving deceit, dishonesty or fraud; 

(ii) a material act or acts of dishonesty in connection with the performance of the Executive’s duties, including without
limitation, material misappropriation of funds or property; 
 (iii) an act or acts of gross misconduct by the Executive; or

 (iv) continued, willful and deliberate non-performance by the Executive of duties (other than by reason of illness or
disability) which has continued for more than 30 days following written notice of non-performance from the Board of Directors (or Executive Committee) which specifically describes the alleged non-performance. 

A determination of whether the Executive’s employment shall be terminated for Cause shall be made at a meeting of the Board of Directors called and held
for such purpose, at which the Board of Directors makes a finding that in the good faith opinion of the Board of Directors an event set forth in subclauses (i), (ii), (iii) or (iv) has occurred and specifying the particulars thereof in
detail. 
 (b) Termination by the Executive. The Executive’s employment under this Agreement may be terminated by the Executive
by written notice to the Board of Directors within sixty (60) days following an event constituting “Good Reason.” The Executive’s termination of employment shall become effective on the thirty-first (31st) day following such notice, provided the Bank has not remedied the condition giving rise to the event of “Good Reason.” For purposes of this Agreement, “Good Reason” shall
mean: 
 (i) a material diminution or other substantial adverse change, not consented to by Executive, in the nature or scope
of the Executive’s responsibilities and authorities as set forth in this Agreement, including a change in the Executive’s line of reporting so that he no longer reports directly to the Bank’s President and Chief Executive Officer;

 (ii) the assignment to Executive of any duties materially inconsistent with Executive’s position, including any
material change in status or duties, excluding for this purpose an isolated, insubstantial and inadvertent action not taken in bad faith and that is remedied by the Bank reasonably promptly after receipt of notice thereof given by the Executive;

  
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 (iii) a material reduction in the Executive’s base salary except for
across-the-board reductions similarly affecting all or substantially all officers; 
 (iv) involuntary relocation of the
Bank’s offices in which the Executive is principally employed by more than 20 miles (10 miles in the event of a Change in Control); or 

(v) failure of the Bank to comply with material terms of this Agreement. 

(c) Termination by the Bank Without Cause. The Executive’s employment under this Agreement may be terminated by the Bank without
Cause (which, for purposes of clarification, shall not include a termination of Executive’s employment under this Agreement due to Executive’s death or Disability) upon written notice to the Executive. A determination of whether the
Executive’s employment shall be terminated without Cause will be made solely by the Executive Committee of the Board of Directors. 

(d) Disability. If the Executive shall be disabled so as to be unable to perform the essential functions of the Executive’s then
existing position or positions under this Agreement with or without reasonable accommodation, for a total of more than 90 days in any calendar year, the Board of Directors may terminate the Executive’s employment upon written notice to the
Executive. If any question shall arise as to whether during any period the Executive is disabled so as to be unable to perform the essential functions of the Executive’s then existing position or positions with or without reasonable
accommodation, the Executive may, and at the request of the Bank shall, submit to the Bank a certification in reasonable detail by a physician selected by the Bank to whom the Executive or the Executive’s guardian has no reasonable objection as
to whether the Executive is so disabled, and such certification shall for the purposes of this Agreement be conclusive of the issue. The physician shall be board-certified in the area of medicine applicable to the particular disability involved. The
Executive shall cooperate with any reasonable request of the physician in connection with such certification. If such question shall arise and the Executive shall fail to submit such certification (unless the failure results from matters beyond the
control of the Executive), the Bank’s determination will determine the issue of whether the Executive is disabled. Nothing in this Section 6(d) shall be construed to waive the Executive’s rights, if any, under existing law including,
without limitation; the Family and Medical Leave Act of 1993, 29 U.S.C. §2601 et seq., the Americans with Disabilities Act, 42 U.S.C. §12101 et seq, Massachusetts General Laws Chapter 151B, and Section 10 below. 

(e) Death. The Executive’s employment hereunder shall terminate upon his death. 

(f) Termination and Board Membership. To the extent Executive is a member of the board of directors or trustees of the Bank or any of
its affiliates on the date of termination of employment with the Bank (other than a termination due to normal retirement), Executive will resign from all of the boards of directors and trustees immediately following such termination of employment
with the Bank. Executive will be obligated to tender this resignation regardless of the method or manner of termination (other than termination due to normal retirement), and such resignation will not be conditioned upon any event or payment. 

  
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 7. Certain Compensation Upon Termination. 

(a) Compensation Upon Voluntary Termination. If the Executive shall resign (including by retirement) and voluntarily terminate
employment without Good Reason, the Bank shall pay to the Executive the Executive’s accrued and unpaid salary, accrued and unpaid vacation pay and all rights and benefits that the Executive is entitled to receive under the terms of the
Bank’s benefit plans or arrangements, including the Executive’s rights under any Supplemental Executive Retirement Plan and Joint Beneficiary Designation Agreement (upon death) in effect between the Bank and the Executive (the
“Accrued Obligations”). 
 (b) Compensation Upon Death. In the event the Executive’s employment shall terminate in the
event of his death, his surviving spouse (or estate if there is no surviving spouse) shall be entitled to receive the Accrued Obligations, including a pro-rata bonus through the date of his death. His surviving spouse (or estate if there is no
surviving spouse) shall also be entitled to any death benefit provided under the Bank’s life insurance plans. 
 (c) Compensation
Upon Disability. In the event the Executive’s employment shall terminate by reason of disability as provided in Section 6(d) above, he shall be entitled to his Accrued Obligations, including a pro-rata bonus through the date of his
disability, and such disability benefits as determined in accordance with any short or long-term disability plans then in effect for executives of the Bank. 

(d) Compensation Upon Termination by the Bank for Cause. In the event the Executive’s employment shall be terminated by the Bank
for Cause as provided by Section 6(a) above, he shall be entitled to receive his Accrued Obligations only. 
 (e) Compensation Upon
Termination of the Bank Without Cause or by the Executive for Good Reason. In the event the Executive’s employment shall be terminated by the Bank without Cause as provided in Section 6(c) above, or by the Executive for Good Reason as
provided in Section 6(b) above after the first anniversary of the Effective Date, he shall be entitled to receive the Accrued Obligations. In addition, subject to the Executive’s agreement to a release of any and all legal claims in a form
satisfactory to the Bank and the expiration of the applicable revocation period and subject to compliance with the provisions of Section 9 hereof, the Bank shall pay the Executive an amount equivalent to the sum of (i) two (2) times
the (a) Executive’s Salary at the rate then in effect pursuant to Section 4(a), and (b) the average of the cash bonuses earned in each of the three (3) calendar years preceding the year of termination; and (ii) the
value of 24 months of health insurance premiums for health insurance coverage provided by the Bank, based on the coverage provided to the Executive immediately prior to his termination. The Bank shall make this in a single lump sum cash payment
within ten (10) days following the termination of employment. No cash payment shall be made under this Section 7(e) if a payment is required to be made (and is made) under Section 8(b) of this Agreement because of the Executive’s
termination of employment. 

  
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 (f) [Reserved] 

(g) If the Executive is a “specified employee” (as defined below) of a publicly traded company, the payments pursuant to this
Agreement, including Sections 7(e) and 7(f), may be delayed and paid to the Executive on the first day of the seventh month following termination of employment if required to avoid penalty under Section 409A of the Internal Revenue Code
(“Code”). For purposes of this Agreement, the Executive shall not have a “termination of employment” until he has a “separation from service” within the meaning of Code Section 409A and the regulations promulgated
thereunder. Also for purposes of this Agreement, Executive is a specified employee if Executive is a “key employee” within the meaning of Code Section 416(i) (without regard to paragraph (i) thereof). 

8. Termination in Connection with a Change in Control. 

(a) For purposes of this Agreement, a “Change in Control” means a change in control of the Bank or Meridian Bancorp, Inc. (the
“Company”) as defined in Section 409A of the Internal Revenue Code of 1986 (the “Code”), as amended, and rules, regulations, and guidance of general application thereunder, including the following: 

i. Change in ownership: A change in ownership of the Bank or the Company occurs on the date any one person or group of
persons accumulates ownership of more than 50% of the total fair market value or total voting power of the Bank or the Company, or 

ii. Change in effective control: A change in effective control occurs when either (i) any one person or more than
one person acting as a group acquires within a 12-month period ownership of stock of the Company possessing 30% or more of the total voting power of the Company; or (ii) a majority of the Bank’s or Company’s Board of Directors is
replaced during any 12-month period by Directors whose appointment or election is not endorsed in advance by a majority of the Bank’s or Company’s Board of Directors (as applicable), or 

iii. Change in ownership of a substantial portion of assets: A change in the ownership of a substantial portion of the
Company’s assets occurs if, in a 12 month period, any one person or more than one person acting as a group acquires assets from the Company having a total gross fair market value equal to or exceeding 40% of the total gross fair market value of
the Company’s entire assets immediately before the acquisition or acquisitions. For this purpose, “gross fair market value” means the value of the Company’s assets, or the value of the assets being disposed of, determined without
regard to any liabilities associated with the assets. 
 (b) Termination. If within the period ending one year after a Change in
Control, (i) the Bank terminates the Executive’s employment without Cause, or (ii) the Executive voluntarily terminates his employment with Good Reason, the Bank will, within ten (10) calendar days of the termination of the
Executive’s employment, make a lump-sum cash 

  
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payment to him equal to 2.99 times his “base amount” (as defined for purposes of Section 280G of the Code) less any other “parachute payments” (as also defined for
purposes of Section 280G of the Code) made to the Executive. The cash payment made under this Section 8(b) shall be made in lieu of any payment also required under Section 7 of this Agreement because of the Executive’s
termination of employment. For purposes of this Section 8(b), the Executive shall not have a “termination of employment” until he has a “separation from service” within the meaning of Section 409A of the Internal
Revenue Code (“Code”) and the regulations promulgated thereunder. 
 (c) The provisions of Section 9, including the defined
terms used in such sections, shall continue in effect until the later of the expiration of this Agreement or one year following a Change in Control, except the non-compete provisions in Section 9(d) shall not be applicable in the event of a
Change in Control. 
 (d) Limitation of Benefits Under Certain Circumstances. If the payments and benefits pursuant to this
Section 8 of this Agreement, either alone or together with other payments and benefits the Executive has the right to receive from the Bank, would constitute a “parachute payment” under Section 280G of the Code, the payments and
benefits shall be reduced or revised, by the amount, if any, which is the minimum necessary to result in no portion of the payments and benefits under this Agreement or otherwise being non-deductible to the Bank pursuant to Section 280G of the
Code and subject to the excise tax imposed under Section 4999 of the Code. The reduction will be made in the manner determined by the Executive, unless it is determined that permitting the Executive to make the determination would violate Code
Section 409A. In such case, the reduction will be made first from the cash severance payment payable under this Section 8. The Bank’s independent public accountants will determine any reduction in the payments and benefits to be made
pursuant to this Agreement or otherwise; the Bank will pay for the accountant’s opinion. If the Bank and/or the Executive do not agree with the accountant’s opinion, the Bank will pay to the Executive the maximum amount of payments and
benefits pursuant to this Section 8, as selected by the Executive, that the opinion indicates have a high probability of not causing any of the payments and benefits to be non-deductible to the Bank and subject to the excise tax imposed under
Section 4999 of the Code. The Bank may also request, and the Executive has the right to demand that the Bank request, a ruling from the Internal Revenue Service (“IRS”) as to whether the disputed payments and benefits pursuant to this
Section 8 have such tax consequences. The Bank will promptly prepare and file the request for a ruling from the IRS, but in no event will the Bank make this filing later than thirty (30) days from the date of the accountant’s opinion
referred to above. The request will be subject to the Executive’s approval prior to filing; the Executive shall not unreasonably withhold his approval. The Bank and the Executive agree to be bound by any ruling received from the IRS and to make
appropriate payments to each other to reflect any IRS rulings, together with interest at the applicable federal rate provided for in Section 7872(f)(2) of the Code. Nothing contained in this Agreement shall result in a reduction of any payments
or benefits to which the Executive may be entitled upon termination of employment other than pursuant to this Section 8, or a reduction in the payments and benefits specified in this Section 8, below zero. 

9. Confidential Information, Noncompetition and Cooperation. 

  
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 (a) Confidential Information. As used in this Agreement, “Confidential
Information” means information belonging to the Bank which is of value to the Bank in the course of conducting its business and the disclosure of which could result in a competitive or other disadvantage to the Bank. Confidential Information
includes, without limitation, financial information, reports, and forecasts; inventions, improvements and other intellectual property; trade secrets; know-how; designs, processes or formulae; software; market or sales information or plans; customer
lists; and business plans, prospects and opportunities (such as possible acquisitions or dispositions of businesses or facilities) which have been discussed or considered by the management of the Bank. Confidential Information includes information
developed by the Executive in the course of the Executive’s employment by the Bank, as well as other information to which the Executive may have access in connection with the Executive’s employment. Confidential Information also includes
the confidential information of others with which the Bank has a business relationship. Notwithstanding the foregoing, Confidential Information does not include information in the public domain, unless due to breach of the Executive’s duties
under Section 9(b). 
 (b) Confidentiality. The Executive understands and agrees that the Executive’s employment creates a
relationship of confidence and trust between the Executive and the Bank with respect to all Confidential Information. At all times, both during the Executive’s employment with the Bank and after its termination, the Executive will keep in
confidence and trust all such Confidential Information, and will not use or disclose any such Confidential Information without the written consent of the Bank, except as may be necessary in the ordinary course of performing the Executive’s
duties to the Bank. 
 (c) Documents, Records, etc. All documents, records, data, apparatus, equipment and other physical property,
whether or not pertaining to Confidential Information, which are furnished to the Executive by the Bank or are produced by the Executive in connection with the Executive’s employment will be and remain the sole property of the Bank. The
Executive will return to the Bank all such materials and property as and when requested by the Bank. In any event, the Executive will return all such materials and property immediately upon termination of the Executive’s employment for any
reason. The Executive will not retain with the Executive any such material or property or any copies thereof after such termination. 
 (d)
Noncompetition and Nonsolicitation. During the period in which the Executive is employed by the Bank and for two (2) years thereafter, the Executive (i) will not, directly or indirectly, whether as owner, partner, shareholder,
consultant, agent, employee, co-venturer or otherwise, engage, participate, assist or invest in any Competing Business (as hereinafter defined); (ii) will refrain from directly or indirectly employing, attempting to employ, recruiting or
otherwise soliciting, inducing or influencing any person to leave employment with the Bank (other than terminations of employment of subordinate employees undertaken in the course of the Executive’s employment with the Bank); and
(iii) will refrain from soliciting or encouraging any customer or supplier to terminate or otherwise modify adversely its business relationship with the Bank. The Executive understands that the restrictions set forth in this Section 9(d)
are intended to protect the Bank’s interest in its Confidential Information and established employee, customer and supplier relationships and goodwill, and agrees that such 

  
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restrictions are reasonable and appropriate for this purpose. For purposes of this Agreement, the term “Competing Business” shall mean a business conducted anywhere in the cities of
Boston or Quincy, Massachusetts, which is competitive with any business which the Bank or any of its affiliates conducts or has taken affirmative action to begin conducting at any time during the employment of the Executive. Notwithstanding the
foregoing, the Executive may own up to one percent (1%) of the outstanding stock of a publicly held corporation which constitutes or is affiliated with a Competing Business. 

(e) Litigation and Regulatory Cooperation. During and after the Executive’s employment, the Executive shall cooperate fully with
the Bank in the defense or prosecution of any claims or actions now in existence or which may be brought in the future against or on behalf of the Bank which relate to events or occurrences that transpired while the Executive was employed by the
Bank. The Executive’s full cooperation in connection with such claims or actions shall include, but not be limited to, being available to meet with counsel to prepare for discovery or trial and to act as a witness on behalf of the Bank at
mutually convenient times. During and after the Executive’s employment, the Executive also shall cooperate fully with the Bank in connection with any investigation or review of any federal, state or local regulatory authority as any such
investigation or review relates to events or occurrences that transpired while the Executive was employed by the Bank. The Bank shall reimburse the Executive for any reasonable out-of-pocket expenses incurred in connection with the Executive’s
performance of obligations pursuant to this Section 9(e). 
 (f) Injunction. The Executive agrees that it would be difficult to
measure any damages caused to the Bank which might result from any breach by the Executive of the promises set forth in this Section 9, and that in any event money damages would be an inadequate remedy for any such breach. Accordingly, subject
to Section 10 of this Agreement, the Executive agrees that if the Executive breaches, or proposes to breach, any portion of this Agreement, the Bank shall be entitled, in addition to all other remedies that it may have, to an injunction or
other appropriate equitable relief to restrain any such breach without showing or proving any actual damage to the Bank. 
 10.
Arbitration of Disputes. Any controversy or claim arising out of or relating to this Agreement or the breach thereof or otherwise arising out of the Executive’s employment or the termination of that employment (including, without
limitation, any claims of unlawful employment discrimination whether based on age or otherwise) shall, to the fullest extent permitted by law, be settled by arbitration in any forum and form agreed upon by the parties or, in the absence of such an
agreement, under the auspices of the American Arbitration Association (“AAA”) in Boston, Massachusetts in accordance with the Employment Dispute Resolution Rules of the AAA, including, but not limited to, the rules and procedures
applicable to the selection of arbitrators. In the event that any person or entity other than the Executive or the Bank may be a party with regard to any such controversy or claim, such controversy or claim shall be submitted to arbitration subject
to such other person or entity’s agreement. Judgment upon the award rendered by the arbitrator may be entered in any court having jurisdiction thereof. This Section 10 shall be specifically enforceable. Notwithstanding the foregoing, this
Section 10 shall not preclude either party from pursuing a court action for the sole purpose of obtaining a temporary restraining order or a preliminary injunction in circumstances in which 

  
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such relief is appropriate; provided that any other relief shall be pursued through an arbitration proceeding pursuant to this Section 10. The cost of all arbitration proceedings (other than
the Executive’s legal fees, which are subject to section 15 of this Agreement) shall be paid by the Bank. 
 11. Consent to
Jurisdiction. To the extent that any court action is permitted consistent with or to enforce Section 10 of this Agreement, the parties hereby consent to the jurisdiction of the Superior Court of the Commonwealth of Massachusetts and the
United States District Court for the District of Massachusetts. Accordingly, with respect to any such court action, the Executive (a) submits to the personal jurisdiction of such courts; (b) consents to service of process; and
(c) waives any other requirement (whether imposed by statute, rule of court, or otherwise) with respect to personal jurisdiction or service of process. 

12. Integration. This Agreement constitutes the entire agreement between the parties with respect to the subject matter hereof and
supersedes all prior agreements between the parties with respect to any related subject matter. 
 13. Assignment; Successors and
Assigns, etc. Neither the Bank nor the Executive may make any assignment of this Agreement or any interest herein, by operation of law or otherwise, without the prior written consent of the other party; provided that the Bank may assign its
rights under this Agreement without the consent of the Executive in the event that the Bank shall effect a reorganization, consolidate with or merge into any other corporation, partnership, organization or other entity, or transfer all or
substantially all of its properties or assets to any other corporation, partnership, organization or other entity. This Agreement shall inure to the benefit of and be binding upon the Bank and the Executive, their respective successors, executors,
administrators, heirs and permitted assigns. 
 14. Enforceability. If any portion or provision of this Agreement (including, without
limitation, any portion or provision of any section of this Agreement) shall to any extent be declared illegal or unenforceable by a court of competent jurisdiction, then the remainder of this Agreement, or the application of such portion or
provision in circumstances other than those as to which it is so declared illegal or unenforceable, shall not be affected thereby, and each portion and provision of this Agreement shall be valid and enforceable to the fullest extent permitted by
law. 
 15. Payment of Legal Fees. All reasonable legal fees paid or incurred by the Executive pursuant to any dispute or question of
interpretation relating to this Agreement shall be paid or reimbursed by the Bank, only if the Executive is successful pursuant to a legal judgment, arbitration or settlement. Such payment or reimbursement shall be made no later than two and
one-half months after the successful conclusion in Executive’s favor of the dispute by judgment, arbitration or settlement. 
 16.
Waiver. No waiver of any provision hereof shall be effective unless made in writing and signed by the waiving party. The failure of any party to require the performance of any term or obligation of this Agreement, or the waiver by any party
of any breach of this Agreement, shall not prevent any subsequent enforcement of such term or obligation or be deemed a waiver of any subsequent breach. 

  
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 17. Notices. Any notices, requests, demands and other communications provided for by this
Agreement shall be sufficient if in writing and delivered in person or sent by a nationally recognized overnight courier service or by registered or certified mail, postage prepaid, return receipt requested, to the Executive at the last address the
Executive has filed in writing with the Bank or, in the case of the Bank, at its main offices, attention of the Board of Directors, and shall be effective on the date of delivery in person or by courier or three (3) days after the date mailed.

 18. Amendment. This Agreement may be amended or modified only by a written instrument signed by the Executive and by a duly
authorized representative of the Bank. 
 19. Governing Law. This is a Massachusetts contract and shall be construed under and be
governed in all respects by the laws of the Commonwealth of Massachusetts, without giving effect to the conflict of laws principles of such Commonwealth. With respect to any disputes concerning federal law, such disputes shall be determined in
accordance with the law as it would be interpreted and applied by the United States Court of Appeals for the First Circuit. 
 20.
Federal Deposit Insurance Act Compliance. All payments made by the Bank to the Executive under any provision of this Agreement shall be subject to and conditioned upon compliance with Section 18(k) of the Federal Deposit Insurance Act,
12 U.S.C. § 1828(k) and any regulations promulgated hereunder. 
 21. Counterparts. This Agreement may be executed in any number
of counterparts, each of which when so executed and delivered shall be taken to be an original; but such counterparts shall together constitute one and the same document. 

22. Entire Agreement. This Agreement constitutes the entire agreement between the Bank and the Executive concerning the subject matter
hereof and supersedes the Original Agreement. No right is granted to the Executive under this Agreement other than those specifically set forth herein. No agreement or representation, oral or otherwise, expressed or implied, concerning the subject
matter of this Agreement has been made by either party that is not set forth expressly in this Agreement. This Agreement may not be modified or amended except by an instrument in writing signed by each of the parties hereto. 

  
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 IN WITNESS WHEREOF, this Agreement has been executed as a sealed instrument by the Bank, by its
duly authorized officer, and by the Executive, as of the date first above written. 
  

			
	EAST BOSTON SAVINGS BANK
		
	By:	 	 /s/ Richard J. Gavegnano

	Name:	 	Richard J. Gavegnano
	 Title:   Chairman of the Board, President and

Chief Executive Officer

	
	EXECUTIVE
	
	 /s/ Edward J. Merritt

	Edward J. MerrittEX-10.10

 Exhibit 10.10 

AMENDED AND RESTATED 

SUPPLEMENTAL EXECUTIVE RETIREMENT AGREEMENT 

FOR EDWARD J. MERRITT 

THIS AMENDED AND RESTATED SUPPLEMENTAL EXECUTIVE RETIREMENT AGREEMENT (the “Agreement”) is dated July 28, 2014 by and
between East Boston Savings Bank, a corporation organized and existing under the laws of the Commonwealth of Massachusetts (the “Bank” or “Employer”) and Edward J. Merritt (the “Executive”). This Agreement is
effective as of January 5, 2010. 
 WITNESSETH 

WHEREAS, the Executive originally entered into a supplemental executive retirement agreement with Meridian Interstate Bancorp, Inc., a
Massachusetts corporation, effective as of January 5, 2010, which was the date Mt. Washington Cooperative Bank (“MWCB”) merged into the Bank (the “Merger Effective Time”); and 

WHEREAS, in connection with the conversion of Meridian Financial Services, Incorporated (the “MHC”) from the mutual holding
company to the stock holding company form of organization, the Bank desires to amend and restate the Prior Agreement in order to remove any reference to the MHC structure and to make certain other changes; and 

WHEREAS, the Executive has agreed to such amendment and restatement of the Prior Agreement; and 

WHEREAS, the Board of Directors of the Bank and the Executive believe it is in the best interests of the Bank to enter into the
Agreement in order to reinforce and reward the Executive for his service and dedication to the continued success of the Bank. 
 NOW,
THEREFORE, in consideration of the premises and the mutual promises of the parties hereto, the parties agree as follows: 
 PURPOSE

 The purpose of this Agreement is to provide the Executive with supplemental retirement benefits in order to provide him with a
reasonable level of retirement income which will assist him in maintaining an appropriate standard of living in retirement. An integral part of the Agreement is to encourage and induce the Executive to remain as a full-time executive officer of the
Bank until he attains the retirement age of sixty-five (65) and to recognize his service to the Bank. The parties intend that this Agreement shall at all times be characterized as a “top hat” plan of deferred compensation maintained
for the Executive who is a highly compensated employee, as described under Sections 201(2), 301(a)(3) and 401(a)(1) of the Employee Retirement Income Security Act of 1974 (the “ERISA”), and the Agreement shall at all times satisfy
Section 409A of the Internal Revenue Code of 1986, as amended (the “Code”), and as enacted under the American Jobs Creation Act of 2004. The provisions of the Agreement shall be construed to effectuate such intentions. The Agreement
shall be unfunded for tax purposes and for purposes of Title I of ERISA. 

 1. Establishment of Accumulation Account. An Accumulation Account shall be maintained on
the books of the Employer for the Executive with respect to this Agreement. The Accumulation Account shall be utilized solely as a device for the measurement and determination of the benefits, if any, payable to the Executive pursuant to this
Agreement. The Executive will be one-hundred percent (100%) vested in the Accumulation Account at all times. The amount of the Accumulation Account as of the Merger Effective Time shall equal the amount accrued under the MWCB SERP for GAAP
purposes as of the Merger Effective Time (the “GAAP Accrual”). 
 2. Annual Credits to Accumulation Account. Commencing as
of the Merger Effective Time and ending on the date of termination of the Executive’s employment, the Board of Directors of the Bank shall credit the Executive’s Accumulation Account with an amount equal to $50,000 (which is the amount
equal to the product of (i) 1/15, times (ii) $750,000) for each full calendar year of Executive’s employment, and for each partial calendar year of Executive’s employment, a pro rated amount determined by dividing the number of
days during such year prior to termination of Executive’s employment by 365, and multiplying such quotient by $50,000. The Accumulation Account shall be credited as of each
December 31st, and in the event the Executive terminates employment prior to December 31st, his pro rated amount for the year of
termination of service will be credited to his Accumulation Account within thirty days after termination of his employment. The Executive may not make any contributions under this Agreement. 

 

	 	3.	Maximum Amount Credited to Accumulation Account. All amounts credited to the Accumulation Account shall not exceed the GAAP Accrual plus $750,000. No further additions to the Accumulation Account will be made
when, and if, a total of $750,000 has been credited to the Accumulation Account after the Merger Effective Time, excluding the GAAP Accrual. 

  

	 	4.	Payment upon Separation from Service. 

 (a) Upon a Separation from Service prior to the
attainment of age sixty (60), the Accumulation Account shall be paid to the Executive in one hundred and twenty (120) equal monthly installments with interest equal to the one-year Treasury bill as of the date of the Separation of Service, with
the first payment commencing on the first day of the month following the lapse of six months after such Separation from Service. In the event of the Executive’s death after such Separation from Service but prior to the completion of the one
hundred and twenty (120) installment payments described above, an amount equal to the aggregate remaining unpaid installments shall be paid to the Executive’s beneficiary (or estate, if there is no beneficiary) in a single lump sum payment
on the first day of the month following the occurrence of his death. 
 (b) Upon a Separation from Service on or after the attainment of age
sixty (60), the Accumulation Account shall be paid in the form of a single-life annuity (subject to Section 18), 

  
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with such payments to be made in equal monthly installments (1/12th of the annual annuity benefit) until the death of the Executive, with the
first payment commencing on the first day of the month following the lapse of six months after such Separation from Service. The value of such single-life annuity shall be the actuarial equivalent of the Accumulation Account calculated in a manner
that is no less favorable to the Executive (or his beneficiary) than would be determined using the interest rates, mortality tables and other assumptions expressed in Section 417(e) of the Code. 

(c) For purposes hereof, Separation from Service shall mean a termination of the Executive’s services (whether as an employee or as an
independent contractor) to the Company and the Bank for any reason other than Disability or death. Whether a Separation from Service has occurred shall be determined in accordance with the requirements of Section 409A of the Code based on
whether the facts and circumstances indicate that the Company, the Bank and the Executive reasonably anticipated that no further services would be performed after a certain date or that the level of bona fide services the Executive would perform
after such date (whether as an employee or as an independent contractor) would permanently decrease to no more than twenty percent (20%) of the average level of bona fide services performed (whether as an employee or an independent contractor)
over the immediately preceding thirty-six (36) month period. 
 5. Payment upon Disability; Death. 

(a) Upon the Disability of the Executive, which causes a Separation from Service, the Accumulation Account shall be paid in the form of a
single-life annuity (calculated pursuant to Section 4(b) above, and subject to Section 18), with such payments to be made in equal monthly installments (1/12th of the annual annuity
benefit) until the death of the Executive, with the first payment commencing on the first day of the month following the Disability. 
 (b)
Upon the death of the Executive (i) while actively employed by the Bank, or (ii) after a Separation from Service to which Section 4(b) applies, but prior to the Insured’s receipt of the first installment payment under such
Section 4(b), the Accumulation Account shall be paid to the Executive’s beneficiary in a single lump sum payment on the first day of the month following the occurrence of death. 

(c) For purposes hereof, Disability shall mean an Executive (i) is unable to engage in any substantial gainful activity by reason of any
medically determinable physical or mental impairment which can be expected to result in death or can be expected to last for a continuous period of not less than twelve months; or (ii) is, by reason of any medically determinable physical or
mental impairment which can be expected to result in death or can be expected to last for a continuous period of not less than twelve months, receiving income replacement benefits for a period of not less than three months under an accident and
health plan covering employees of the Bank (or would have received such benefits if the Executive was eligible to participate in such plan). If any question shall arise as to whether during any period the Executive is Disabled, the Executive may,
and at the request of the Bank shall, submit to the Bank a certification in reasonable detail by a physician selected by the Bank to whom the Executive or the Executive’s guardian has no reasonable objection as to whether the Executive is so
Disabled, and such certification shall for the purposes of this Agreement be conclusive of the issue. The physician 

  
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shall be board-certified in the area of medicine applicable to the particular disability involved. The Executive shall cooperate with any reasonable request of the physician in connection with
such certification. If such question shall arise and the Executive shall fail to submit such certification (unless the failure results from matters beyond the control of the Executive), the Bank’s determination will determine the issue of
whether the Executive is Disabled. 
  

	 	6.	Payment upon Termination of the Executive Without Cause or by the Executive for Good Reason in connection with a Change in Control. 

(a) Notwithstanding anything in the Agreement to the contrary, in the event the Executive’s employment shall be terminated by the Bank
(which termination shall constitute a Separation from Service), or its successor, without Cause, as provided in Section 6(b), or by the Executive for Good Reason, as provided in Section 6(c), concurrently with or within one (1) year
of a Change in Control, as defined in Section 6(d), and ending one year after consummation of such Change in Control, the Executive’s Accumulation Account shall equal the GAAP Accrual plus $750,000 and shall be paid in a single lump sum
payment to the Executive on the first day of the month following the lapse of six months after such Separation from Service. 
 (b)
Termination by the Bank without Cause. The Executive’s employment may be terminated by the Bank, or its successor, without Cause (which, for purposes of clarification, shall not include a termination of Executive’s employment under this
Agreement due to Executive’s death or Disability) upon written notice to the Executive. A determination of whether the Executive’s employment shall be terminated without Cause will be made solely by the Executive Committee of the Board of
Directors. 
 (c) Termination by the Executive for Good Reason. The Executive’s employment may be terminated by the Executive by
written notice to the Board of Directors within sixty (60) days following an event constituting “Good Reason.” The Executive’s termination of employment shall become effective on the thirty-first (31st) day following such notice, provided the Bank, or its successor, has not remedied the condition giving rise to the event of “Good Reason.” For purposes of this Agreement, “Good
Reason” shall mean: 
 (i) a material diminution or other substantial adverse change, not consented to by Executive, in the nature or
scope of the Executive’s responsibilities or authorities as set forth in the employment agreement between the Executive and the Bank, including a change in the Executive’s line of reporting so that he no longer reports directly to the
Bank’s Chief Executive Officer; 
 (ii) the assignment to Executive of any duties materially inconsistent with Executive’s
position, including any material change in status or duties, excluding for this purpose an isolated, insubstantial and inadvertent action not taken in bad faith and that is remedied by the Bank reasonably promptly after receipt of notice thereof
given by the Executive; 
 (iii) a material reduction in the Executive’s base salary except for across-the-board reductions similarly
affecting all or substantially all officers; 

  
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 (iv) involuntary relocation of the Bank’s offices in which the Executive is principally
employed by more than 10 miles; or 
 (v) failure of the Bank to comply with material terms of this Agreement. 

(d) For purposes hereof, “Change in Control” shall mean a change in the ownership of Meridian Bancorp, Inc., a Maryland corporation
(the “Company”), or the Bank, a change in the effective control of the Company or the Bank or a change in the ownership of a substantial portion of the assets of the Company or the Bank, in each case as provided under Section 409A of
the Code and the regulations thereunder. 
 7. Designation of Beneficiary. The Executive may from time to time, by providing a
written notification to the Employer, designate any person or persons (who may be designated concurrently, contingently or successively), his estate or any trust or trusts created by him to receive benefits which are payable under this Agreement.
Each beneficiary designation shall revoke all prior designations and will be effective only when filed in writing with the Employer’s Compensation Committee, or any successor thereto (the “Committee”). If the Executive fails to
designate a beneficiary or if a beneficiary dies before the date of the Executive’s death and no contingent beneficiary has been designated, then the benefits which are payable as aforesaid shall be paid to his estate. If benefits to be paid to
a beneficiary commence and such beneficiary dies before all benefits to which such beneficiary is entitled have been paid, the remaining benefits shall be paid to the successive beneficiary or beneficiaries designated by the Executive, if any, and
if none to the estate of such beneficiary. 
 8. Claims Procedure. The Executive or his designated beneficiary or beneficiaries may
make a claim for benefits under this Agreement by filing a written request with the Committee. If a claim is wholly or partially denied, the Committee shall furnish the claimant with written notice setting forth in a manner calculated to be
understood by the claimant; 
 (a) the specific reason or reasons for the denial; 

(b) specific reference to the pertinent provisions of this Agreement on which the denial is based; 

(c) a description of any additional material or information necessary for the claimant to perfect his claim and an explanation why such
material or information is necessary; and 
 (d) appropriate information as to the steps to be taken if the claimant wishes to submit his
claim for review. 
 Such notice shall be furnished to the claimant within ninety (90) days after the receipt of his claim, unless
special circumstances require an extension of time for processing his claim. If an extension of time for processing is required, the Committee shall, prior to the termination of the initial ninety (90) day period, furnish the claimant with
written notice indicating the special circumstances requiring an extension and the date by which the Committee expects to render its decision. In no event shall an extension exceed a period of ninety (90) days from the end of the initial ninety
(90) day period. 

  
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 A claimant may request the Committee to review a denied claim. Such request shall be in writing
and must be delivered to the Committee within sixty (60) days after receipt by the claimant of written notification of denial of claim. A claimant or his duly authorized representative may: 

(a) review pertinent documents, and 

(b) submit issues and comments in writing. 

The Committee shall notify the claimant of its decision on review not later than sixty (60) days after receipt of a request for review,
unless special circumstances require an extension of time for processing, in which case a decision shall be rendered as soon as possible, but not later than one hundred twenty (120) days after receipt of a request for review. If an extension of
time for review is required because of special circumstances, written notice of the extension must be furnished to the claimant prior to the commencement of the extension. The Committee’s decision on the review shall be in writing and shall
include specific reasons for the decision, as well as specific references to the pertinent provisions of this Agreement on which the decision is based. 

9. Statement of Accumulation Account. Within 90 days after the close of each calendar year, the Committee shall submit to the Executive
a statement in such form as the Committee deems desirable setting forth the balance as of the last day of the calendar year in the Accumulation Account maintained for the Executive. 

10. Withholding. To the extent required by the law in effect at the time payment of the Accumulation Account is made, the Bank shall
withhold from such payment any taxes or other amounts required by law to be withheld. 
 11. Unsecured Promise. Nothing contained in
this Agreement shall create or require the Employer to create a trust of any kind to fund the benefits payable hereunder. To the extent that the Executive or any other person acquires a right to receive payments from the Employer, such individual
shall at all times remain an unsecured general creditor of the Employer. 
 12. Assignment. The right of the Executive or any other
person to the payment of benefits under this Agreement shall not be subject to alienation, assignment, garnishment, attachment, execution or levy of any kind, and any attempt to cause such benefits to be so subjected shall not be recognized by the
Employer. 
 13. Employment. Nothing contained herein shall be construed to grant the Executive the right to be retained in the
employ of the Employer or any other rights or interests other than those specifically set forth. 

  
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 14. Amendment, Suspension or Termination. This Agreement shall be binding upon and inure
to the benefit of the Employer and the Executive. The Employer shall have the right to suspend, terminate or amend this Agreement only with the mutual consent of the Executive; provided, however, no such suspension, termination or amendment shall
adversely affect the rights of the Executive or any beneficiary to the funds and benefits which have accrued as of the date of such action. 

15. Successors. This Agreement shall be binding upon and inure to the benefit of the Employer, its successors and assigns and the
Executive and his heirs, executors, administrators, and legal representatives. 
 16. Governing Law. This Agreement shall be governed
by and construed in accordance with the laws of the Commonwealth of Massachusetts. 
 17. Entire Agreement. This Agreement contains
the entire agreement of the parties relating to the subject matter hereof, and supersedes in its entirety any and all understandings or representations relating to the subject matter hereof, including the MWCB SERP and the Prior Agreement. 

18. Alternate Form of Annuity. For purposes of Sections 4(b) or 5(a), the Executive may, upon request made prior to commencement of
payment of the benefit, elect to have the Accumulation Account paid in the form of a joint and 50% survivor annuity or a joint and 100% survivor annuity rather than a single-life annuity, provided that such alternate form of annuity is the actuarial
equivalent of the annuity described in Section 4(b), for purposes of Section 409A of the Code and Reg. 1.409A-2(b)(2)(ii). 

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 IN WITNESS WHEREOF, this Agreement has been executed as of the date first above written.

  

			
	EAST BOSTON SAVINGS BANK
		
	By:	 	 /s/ Richard J. Gavegnano

		 	Richard J. Gavegnano
		 	President and Chief Executive Officer
	
	EXECUTIVE
		
	By:	 	 /s/ Edward J. Merritt

		 	Edward J. Merritt

 This SERP is joined in by Meridian Bancorp, Inc. for purposes of fulfilling the obligations of the Bank
under the SERP. 
  

			
	MERIDIAN BANCORP, INC.
		
	By:	 	 /s/ Richard J. Gavegnano

	Richard J. Gavegnano
	President and Chief Executive Officer

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