Document:

EX-10.1

 Exhibit 10.1 
 VOTING AGREEMENT 
 This VOTING AGREEMENT (this
“Agreement”) is entered into as of August 14, 2013, by and among Mercantile Bank Corporation, a Michigan corporation (“Mercantile”), and each of the shareholders listed on Schedule A to this
Agreement (individually, a “Shareholder” and together, the “Shareholders”). 

RECITALS 

Firstbank Corporation (“Firstbank”) and Mercantile propose to enter into an Agreement and Plan of
Merger, dated as of the date of this Agreement (the “Merger Agreement”), pursuant to which Firstbank will merge with and into Mercantile (the “Merger”). As an inducement to Mercantile’s
willingness to enter into the Merger Agreement, each of the Shareholders is entering into this Agreement. Each Shareholder is the beneficial owner (within the meaning of Rule 13d-3 of the Exchange Act) of such number of shares of the outstanding
common stock, no par value, of Firstbank (“Firstbank Common Stock”) as is indicated next to each Shareholder’s name on Schedule A of this Agreement (the “Subject
Shares”). Capitalized terms used in this Agreement but not defined have the meanings defined in the Merger Agreement.  
 AGREEMENT 
 The parties agree as follows: 

1. Agreement to Retain Subject Shares. 
 (a) Transfer. (1) Except as contemplated by this Agreement or the Merger Agreement, during the period beginning on the date of this Agreement and ending on the earlier to occur of (A) the
Effective Time and (B) the Expiration Date, each Shareholder agrees not to, directly or indirectly, sell, transfer, exchange or otherwise dispose of any of such Shareholder’s Subject Shares, and (2) each Shareholder agrees not to,
directly or indirectly, grant any proxies or powers of attorney, deposit any of such Shareholder’s Subject Shares into a voting trust or enter into a voting agreement with respect to any of such Shareholder’s Subject Shares which is
inconsistent with this Agreement. “Expiration Date” means the date of termination of the Merger Agreement in accordance with its terms. 
 (b) Permitted Transfers. This Agreement does not prohibit a transfer of each Shareholder’s Subject Shares to any family member, trust for the benefit of any family member or charitable
organization to which contributions are deductible for federal income tax, estate, or gift purposes so long as the assignee or transferee agrees to be bound by the terms of this Agreement. 

(c) Subject Shares. Each Shareholder agrees that any shares of Firstbank Common Stock that such Shareholder purchases or otherwise
acquires beneficial ownership of after the date of this Agreement shall be considered “Subject Shares” subject to the terms and conditions of this Agreement. Any shares of Firstbank Common Stock held by any Shareholder, or over which any
Shareholder has the power to vote, as a trustee or otherwise in a fiduciary capacity shall not be subject to this Agreement. 

 2. Agreement to Vote Subject Shares; Solicitation. 

(a) At every meeting of the shareholders of Firstbank called with respect to any of the following, and at every adjournment of such
meeting, each Shareholder shall be present at such meeting (in person or by proxy) and shall vote or consent all of such Shareholder’s Subject Shares (1) in favor of the Firstbank Shareholder Approval, (2) against any action,
proposal, transaction or agreement that would result in a breach in any respect of any covenant, representation or warranty or any other obligation or agreement of Firstbank contained in the Merger Agreement or of the Shareholders contained in this
Agreement, and (3) against the following actions or proposals: (A) any Firstbank Takeover Proposal (other than the Merger) or any proposal in opposition to approval of the Merger Agreement or in competition with or materially inconsistent
with the Merger Agreement; (B) any change in the persons who constitute the Firstbank Board of Directors; (C) any material change in the present capitalization of Firstbank or any amendment of the articles of incorporation or bylaws of
Firstbank; or (D) any other action or proposal involving Firstbank or any subsidiary of Firstbank that is intended, or could reasonably be expected, to prevent, impede, or interfere with the transactions contemplated by the Merger Agreement or
could reasonably be expected to result in any of the conditions to Firstbank’s obligations under the Merger Agreement not being fulfilled.  
 (b) Each Shareholder agrees that, during the term of this Agreement, except as permitted under the Merger Agreement in his or her capacity as a director of Firstbank, such Shareholder shall not, directly
or indirectly, (1) solicit, initiate, facilitate or encourage (including by way of furnishing non-public information) any inquiries regarding, or the making of any proposal or offer that constitutes, or could reasonably be expected to lead to,
a Firstbank Takeover Proposal, or (2) engage or enter into, continue or otherwise participate in any discussions or negotiations regarding, or furnish to any other Person material non-public information in connection with any Firstbank Takeover
Proposal, or otherwise cooperate with or assist or participate in, or encourage or knowingly facilitate any such inquiries, proposals, discussions or negotiations or any effort or attempt to make a Firstbank Takeover Proposal. 

3. Termination. This Agreement shall terminate and have no further force and effect as of the earlier to occur of (a) the
Effective Time and (b) the Expiration Date. 
 4. Fiduciary Duties. Notwithstanding anything in this Agreement to
the contrary, (a) each Shareholder makes no agreement or understanding under this Agreement in any capacity other than in such Shareholder’s capacity as a beneficial owner of such Shareholder’s Subject Shares, (b) nothing in this
Agreement shall be construed to limit or affect any action or inaction by each Shareholder acting in his or her capacity as a director or fiduciary of Firstbank, (c) each Shareholder shall have no liability to Mercantile or any of its
Affiliates under this Agreement as a result of any action or inaction by such Shareholder acting in his capacity as a director or fiduciary of Firstbank, and (d) each Shareholder shall have no liability for the action or inaction of any other
Shareholder. 

 5. Miscellaneous. 

(a) Amendments and Waivers. Any term of this Agreement may be amended or waived with the written consent of the parties or their
respective successors and assigns. 
 (b) Counterparts. This Agreement may be executed in two or more counterparts, each
of which shall be deemed an original and all of which together shall constitute one instrument. 
 (c) Specific
Performance. Each of the parties to this Agreement recognizes and acknowledges that a breach of any covenants or agreements contained in this Agreement will cause Mercantile to sustain damages for which they would not have an adequate remedy at
law for money damages, and therefore each of the parties to this Agreement agrees that in the event of any such breach Mercantile shall be entitled to the remedy of specific performance of such covenants and agreements and injunctive and other
equitable relief in addition to any other remedy to which they may be entitled, at law or in equity. 
 [SIGNATURE PAGE FOLLOWS]

 Mercantile and each of the following Shareholders have executed this Agreement as of the
date first above written. 
  

			
	MERCANTILE BANK CORPORATION
		
	By:	 	  

		 	Name:
		 	Title:
	
	SHAREHOLDERS
		
		 	  

		 	Name: Thomas R. Sullivan
		
		 	  

		 	Name: Thomas D. Dickinson
		
		 	  

		 	Name: David W. Fultz
		
		 	  

		 	Name: Jeff A. Gardner
		
		 	  

		 	Name: William E. Goggin
		
		 	  

		 	Name: Edward B. Grant
		
		 	  

		 	Name: Samuel A. Smith

 [Signature Page to Voting Agreement] 

 SCHEDULE A 
 Ownership of Subject Shares 
  

					
	 Shareholder Name
	  	 Number of Subject Shares
	 
		
	 Thomas R. Sullivan
	  	 	98,856.3093	  
		
	 Thomas D. Dickinson
	  	 	17,663.1022	  
		
	 David W. Fultz
	  	 	12,108.6345	  
		
	 Jeff A. Gardner
	  	 	101,489.2013	  
		
	 William E. Goggin
	  	 	47,561.2738	  
		
	 Edward B. Grant
	  	 	20,025.4926	  
		
	 Samuel A. Smith
	  	 	40,657.6500EX-10.2

 Exhibit 10.2 
 EMPLOYMENT AGREEMENT 
 This EMPLOYMENT AGREEMENT (this
“Agreement”) is made as of August 14, 2013, by and among MERCANTILE BANK CORPORATION, a Michigan corporation (“Mercantile Corp”), MERCANTILE BANK OF MICHIGAN (“Mercantile Bank”) (together referred to as
“Mercantile”), FIRSTBANK CORPORATION, a Michigan Corporation (“Firstbank”), and THOMAS SULLIVAN (“Executive”). 
 Mercantile Corp and Firstbank, are parties to an Agreement and Plan of Merger, dated August 14, 2013, pursuant to which Firstbank will merge with and into Mercantile Corp (the “Merger”).
This Agreement is intended to define the entire terms and conditions of the employment relationship between Mercantile and Executive after the Merger. This Agreement will become effective if and only if the Merger is consummated. 

In consideration of Executive’s continued employment and the other provisions of this Agreement, the parties agree as follows:

 1. Effective Date. This Agreement will become effective if and only if the Merger occurs and will automatically become
effective at the effective time of the Merger (the “Effective Time”). At the Effective Time, this Agreement will supersede all previous agreements and understandings pertaining to Executive’s employment with and compensation by
Firstbank or Mercantile or any of their affiliates or subsidiaries, including, but not limited to, the Change in Control Severance Agreement dated December 31, 1998, between Executive and Firstbank (the “CIC Agreement”). The CIC
Agreement will terminate and will have no further force or effect at the Effective Time. 
 2. Employment. Executive will
be employed in an executive capacity by Mercantile. During Executive’s employment, Executive will serve as Chairman of the Board of Directors of Mercantile Corp and will be appointed and serve as a director and Vice-Chairman of the Board of
Directors of Mercantile Bank of Michigan when Firstbank and Keystone Community Bank have been consolidated with Mercantile Bank of Michigan. Executive’s entire business time and best efforts will be devoted to the performance of
Executive’s duties for Mercantile during the term of employment. Executive shall perform his duties under this Agreement in accordance with reasonable standards and policies established from time to time by the Board of Directors of Mercantile
Corp and Mercantile Bank. Executive’s employment with Mercantile shall automatically terminate one (1) year after the Effective Time (the “Term”). Mercantile Corp’s Board of Directors shall nominate Executive for re-election
to Mercantile Corp’s Board of Directors at any annual meeting of Mercantile Corp’s shareholders which occurs within three (3) years of the Effective Time. At each Annual Meeting of the shareholder of Mercantile Bank which occurs
within three (3) years of the Effective Time, Mercantile Corp shall vote to elect Executive as a director of Mercantile Bank. After the Term, Executive’s compensation for services as a director of Mercantile Corp and Mercantile Bank shall
be on the same basis as other directors who are not employed by Mercantile Corp or Mercantile Bank. 

 3. Severance Payment and Benefits. 

A. Change in Control Payment. In the first payroll period following the Effective Time of the Merger, Mercantile shall pay
Executive a lump sum cash Change in Control Payment equal to the sum of: 
 (i) $525,000 [150% of salary], plus

 (ii) $157,500 [150% of target incentive compensation], plus 

(iii) $105,000 multiplied by the fraction D/365, where D is the number of days from and including, January 1, 2013
through the Effective Time (pro-rated bonus) [we understand the numerator could be more than 365]; minus 
 (iv)
Amount of any bonus or incentive compensation previously paid for 2013. 
 B. Severance Payment. In the event that
Mercantile terminates Executive’s employment prior to the end of the Term, Mercantile will continue Executive’s salary through the end of the Term. 
 C. Health Care Benefit. Executive’s coverage under Mercantile’s group health insurance plans will terminate at the end of Executive’s employment with Mercantile. Mercantile will
reimburse Executive for the COBRA continuation coverage premiums incurred and paid by Executive to continue Executive’s then current employee and dependent health, dental, and prescription drug coverage for eighteen (18) months after
Executive’s employment with Mercantile terminates, provided that (A) Executive elects and remains eligible for COBRA continuation coverage, and (B) Mercantile’s obligation to provide coverage will end if Executive becomes
eligible for comparable coverage from a new employer. Reimbursement for each monthly premium paid by Executive will be made not later than thirty (30) days after Executive requests reimbursement, but in no event later than the end of the year
after the year in which the expense was incurred. In addition, in the first payroll period following the conclusion of the eighteen (18) month COBRA continuation period, Mercantile will pay Executive a lump sum cash payment of $9,000, which
Executive can use to offset the cost of obtaining individual health insurance or for any other purpose. Any payments under this Section 3C will be reported as part of Executive’s W-2 compensation and will be subject to Federal income tax
withholding. In the event of Executive’s death while he remains employed by Mercantile or during the period he is receiving COBRA continuation coverage, Executive’s surviving spouse shall have the same right to reimbursement that Executive
is entitled to receive hereunder for the same period and, if the $9,000 payment has not been made at the time of Executive’s death, Mercantile shall make such payment directly to Executive’s surviving spouse. 

D. Life Insurance Benefit. Executive shall be entitled to life insurance coverage or reimbursement for the cost of life insurance
coverage for a period of two (2) years after Executive’s employment with Mercantile terminates. The life insurance coverage will have a death benefit equal to the largest death benefit provided for Executive under Firstbank’s group

  
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life insurance plan during the twelve (12) month period ending at the Effective Time. If Executive has a conversion right under the Firstbank plan, the coverage may be provided by exercising
the conversion right under a split-dollar arrangement that allows Executive to designate a beneficiary for the two (2) year period. If a conversion right is not available, or if Mercantile and Executive cannot agree on a split-dollar
arrangement, Mercantile will pay or reimburse Executive for the premium cost of other life insurance coverage. In either case, (i) Mercantile will have no obligation to provide or obtain coverage for Executive, (ii) Mercantile’s total
payment or reimbursement obligation will be capped at $51,690 for the two (2) year period; and (iii) reimbursements, if payable, will be payable at the same time as the life insurance premium is due. Any payments under this Section 3D
will be reported as part of Executive’s W-2 compensation and will be subject to Federal income tax withholding. 
 E.
Conditions. In order to receive the payments and reimbursements listed in Sections 3B, 3C and 3D above, Executive must be and remain in compliance with the Non-Compete and Non-Solicitation Agreement referenced in Section 9 of this
Agreement and must execute and not revoke a general release of all claims against Mercantile, Firstbank, their affiliates and subsidiaries and their owners, officers, directors, employees and agents, in the form attached to this Agreement as Exhibit
B. The above-listed payments and benefits are in lieu of any and all payments and benefits to which Executive may otherwise have been entitled under the CIC Agreement or any other agreement or practice. 

4. Compensation. During Executive’s employment, Mercantile agrees to pay Executive an annual salary of Three Hundred
Sixty-Four Thousand Seven Hundred Fifty Dollars ($364,750) subject to normal withholdings and payable in accordance with the normal payroll practices of Mercantile. Executive will not receive any additional compensation for service on the Board of
Directors of Mercantile Corp or Mercantile Bank during Executive’s employment. 
 5. Benefits. During
Executive’s employment, Executive shall be eligible to receive fringe and welfare benefits consistent with those provided to the Chief Executive Officer of Mercantile subject to the terms and conditions of those plans. The benefits include, but
are not limited to, health insurance, 401(k) participation, bonus plan(s) and stock based compensation (proportionately adjusted based on salary differences) and paid vacation. Executive will not be eligible for any Mercantile life insurance benefit
except as provided for in Section 3D. Executive may purchase the company automobile he used while employed by Firstbank at its depreciated value on Firstbank’s accounting records as of 12/31/13. 

6. At-Will Employment. Executive’s employment shall be “at will” and may be terminated by Mercantile at any time,
with or without cause, at or before the end of the Term. 
 7. Death. In the event of the death of Executive during the
Term, Executive’s estate shall be entitled to receive the Change In Control Payment under Section 3 (if not already paid), the salary through the end of the Term plus such other benefits as shall have accrued under this Agreement.

  
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 8. Non-Compete and Non-Solicitation Agreement. As a material condition of this
Agreement, Executive must immediately execute and abide by Mercantile’s Non-Compete and Non-Solicitation Agreement which is attached to this Agreement as Exhibit A. Executive agrees that the Non-Compete and Non-Solicitation Agreement will be
effective immediately at the Effective Time of the Merger. Executive further agrees that the termination of Executive’s employment after one (1) year as agreed to in Paragraph 2 of this Agreement will not constitute a Termination Without
Cause under the Non-Compete and Non-Solicitation Agreement. Notwithstanding anything to the contrary contained herein, Executive shall be permitted to continue to serve on the Board of Directors of the Federal Home Loan Bank of Indianapolis and to
continue to serve on the Community Depository Institutions Advisory Council and retain any fees paid to him in connection therewith. 
 9. Maximum Payments. Notwithstanding any provision in this Agreement to the contrary, if part or all of any amount to be paid to Executive by Mercantile under this Agreement or otherwise
constitutes a “parachute payment” (or payments) under Section 280G or any other similar provision of the Internal Revenue Code of 1986, as amended (the “Code”), the following limitation shall apply: 

If the aggregate present value of such parachute payments (the “Parachute Amount”) exceeds 2.99 times Executive’s
“base amount” as defined in Section 280G of the Code, the amount otherwise payable to or for the benefit of the Executive subsequent to the termination of his employment, and taken into account in calculating the Parachute Amount (the
“Termination Payment”), shall be reduced as further described below, to the extent necessary so that the Parachute Amount is equal to 2.99 times the Executive’s “base amount”. 

Any determination or calculation described in this Paragraph shall be made by Mercantile’s independent accountants at Mercantile’s expense.
Such determination, and any proposed reduction in termination payments shall be furnished in writing promptly by the accountants to the Executive. The Executive may then elect, in his sole discretion, which and how much of any particular termination
payment shall be reduced and shall advise Mercantile in writing of his election, within thirty (30) days of the accountant’s determination, of the reduction in Termination Payments. If no such election is made by the Executive within such
thirty (30) day period, Mercantile may elect which and how much of any termination payment shall be reduced and shall notify the Executive promptly of such election. As promptly as practicable following such determination and the elections
hereunder, Mercantile shall pay to or distribute to or for the benefit of the Executive such amounts as are then due to the Executive. 
 Any
disagreement regarding a reduction in termination payments will be subject to arbitration under this Agreement. Neither the Executive’s designation of specific payments to be reduced nor the Executive’s acceptance of reduced payments shall
waive the Executive’s right to contest such reduction. 
 10. Other Contracts. As of the Effective Time of the
Merger, all other prior agreements regarding conditions of Executive’s employment, whether written or oral, are hereby terminated and superseded by this Agreement. This Agreement contains the entire understanding of the parties concerning
Executive’s employment and supersedes all previous oral and written agreements. 

  
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 11. Assignments. This Agreement contemplates personal services by Executive.
Executive may not transfer or assign Executive’s rights or delegate Executive’s duties and obligations under this Agreement. This Agreement may be assigned by Mercantile to any entity that succeeds to all or substantially all of the
Company’s businesses. 
 12. Notices. Any notices under this Agreement shall be deemed given when in writing and
delivered personally or sent by certified mail, postage prepaid, to the last known address of the party to whom notice is given. If sent by mail, notice shall be deemed given on the third day after mailing. 

13. Amendments. No amendments or additions to this Agreement shall be binding unless in writing and signed by each of the parties.

 14. Paragraph Headings. The paragraph headings used in this Agreement are included solely for convenience and shall
not affect or be used in connection with the interpretation of this Agreement. 
 15. Severability. The provisions of
this Agreement shall be deemed severable, and the invalidity or unenforceability of any provision shall not affect the validity or enforceability of the other provisions hereof. If any provision contained in this Agreement shall be determined by a
court of competent jurisdiction to be unenforceable as written because it is excessively broad as to duration, activity, subject, geographic coverage, or any other matter, it is the intent of the parties that such provision shall be construed by
limiting and reducing it so as to be enforceable to the maximum extent allowed by applicable law. 
 16. Arbitration.
Except as stated in the Non-Compete and Non-Solicitation Agreement, any dispute, controversy, or claim arising under or in connection with this Agreement shall be settled exclusively by arbitration, conducted in Grand Rapids, Michigan, before a
panel of three arbitrators, in accordance with the rules of the American Arbitration Association then in effect. Judgment may be entered on the arbitrators’ award in any court having jurisdiction. Unless otherwise provided in the Rules of the
American Arbitration Association, the arbitrators shall, in their award, allocate between the parties the arbitrators’ fees and expenses, in such proportions as the arbitrators deem just. Each party shall be responsible for their own attorney
fees. 
 17. Governing Law. This Agreement shall be governed by the laws of the United States of America and the State of
Michigan with venue and jurisdiction limited to the Circuit Court for Kent County, Michigan. 
 18. Section 409A.
This Agreement is intended to be exempt from Section 409A of the Internal Revenue Code to the greatest extent possible, to comply with Section 409A to the extent it is applicable and is to be interpreted and operated consistently with
those intentions. 

  
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 IN WITNESS WHEREOF, the parties have executed this Employment Agreement on the day and year
first above written. 
  

													
	MERCANTILE BANK CORPORATION	 		 	MERCANTILE BANK OF MICHIGAN
					
	By: 	 	 	 		 	By: 	 	 
							
		 	Its	 	 	 		 		 	Its 	 	 
					
	EXECUTIVE	 		 		 		 	
					
		 		 		 		 	
	Thomas Sullivan	 		 		 		 	
					
	FIRSTBANK CORPORATION	 		 		 		 	
						
	By: 	 	 	 		 		 		 	
							
		 	Its: 	 	 	 		 		 		 	

  
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 EXHIBIT A 
 NON-COMPETE AND NON-SOLICITATION AGREEMENT 
 In consideration of my employment by
Mercantile Bank Corporation (“Mercantile”), Mercantile Bank of Michigan (the “Bank”) or any of their subsidiaries or affiliates (each a “Company”, and together the “Companies”) and the benefits that I have
received and will receive from the Companies, I agree as follows: 
  

	 	1.	Acknowledgment. I acknowledge that I am and will be in possession of confidential information regarding the Companies and their customers, and have or may
establish or continue relationships with customers on behalf of the Companies that are valuable to them and their businesses. 

  

	 	2.	Non-Competition. 

  

	 	a.	I agree that from the date of this agreement through the earlier of (i) the date one year after I am no longer an employee of any of the Companies, or
(ii) the date of an occurrence of a Change in Control of Mercantile as defined below (the “Non-Compete Period”); I will not directly or indirectly own, manage, control, participate in, consult with, render services to, be employed by,
or in any manner engage in, any business or enterprise (other than any of the Companies) that is competitive with the Companies. A business or enterprise is competitive with the Companies if it engages in the business of banking, lending money,
taking deposits, lease financing or is in any other way competitive with the Companies within a fifty (50) mile radius of any city, township or village in which at any time during the Non-Compete Period the Bank or any of the other Companies
has a branch or other office. This paragraph shall not be construed to prohibit me from (i) being a passive owner of not more than 1% of any publicly-traded class of capital stock of any entity, or (ii) being an employee of a financial
institution having consolidated assets of more than $50 billion where I have no involvement of any type with any customers or business of such financial institution or any of its affiliates within 120 miles of any city, township or village in which
at any time during the Non-Compete Period the Bank or any of the other Companies has a branch or other office. 

  

	 	b.	For purposes of this agreement a “Change in Control” occurs if and only if (i) any “person” or “group of persons,” as such terms are
defined in Section 13 or 14 of the Securities Exchange Act of 1934 (the “Exchange Act”), is or becomes the “beneficial owner” (as defined in Rule 13d-3 under the Exchange Act), directly or indirectly, of securities of
Mercantile representing 50% or more of the combined voting power of Mercantile’s then outstanding securities, or (ii) any merger or consolidation of Mercantile, other than a merger or consolidation in which the voting securities of
Mercantile immediately prior to the merger or consolidation continue to represent (either by remaining outstanding or being converted into securities of the surviving entity) 50% or more of the combined voting power of Mercantile or surviving entity
immediately after the merger or consolidation with another entity. 

  

	 	3.	Non-Solicitation. I agree that during the Non-Compete Period, I will not directly or indirectly (i) induce or attempt to induce any employee, contractor or
agent of any of the Companies to terminate his/her relationship with any of the Companies, (ii) in any way materially interfere with the relationship between any of the Companies and any employee, contractor or agent of any of the Companies,
(iii) hire or attempt to hire, directly or through any entity, any person who was an employee, contractor or agent of any of the Companies at any time during the Non-Compete Period, or (iv) induce or attempt to induce any partner, client,
referral source, customer, supplier, licensee, or any other person with a business relationship with any of the Companies to cease or reduce their business with the Company or to do business with any other person, business or entity.

	 	4.	Termination Without Cause. Notwithstanding any provision of paragraph 2 or 3 above, if each Company that employs me terminates my employment with it without
Cause (as defined below) and does not offer me a transfer to another Company, then after the date as of which I am no longer an employee of any of the Companies (the “Without Cause Termination Date”), the provisions of paragraph 2 and
subsection (iv) of paragraph 3 above shall no longer apply to me, and I shall have no obligation to any of the Companies to comply with any of the provisions of paragraph 2 or subsection (iv) of paragraph 3 after the Without Cause
Termination Date. The preceding sentence shall not affect my obligation to comply with such provisions prior to the Without Cause Termination Date. For purposes of this paragraph, the term Cause shall mean (a) an act or acts of dishonesty
committed by me and intended by me to result in my personal gain or enrichment (other than to a trivial extent) at the expense of any of the Companies, (b) continuing intentional neglect by me of my duties to any of the Companies which is not
promptly remedied after receipt of notice from any of the Companies, (c) my conviction of a felony, (d) my intentional breach of any of my obligations under paragraph 2, 3, or 7 of this Agreement, or (e) if any supervising agency with
jurisdiction over the affairs of the Companies directs, or any court orders, that I am no longer permitted to participate in the affairs of the Companies or that payments under this agreement be suspended or terminated. 

 

	 	5.	Injunctive Relief. I agree that the Companies would be irreparably harmed by my breach or threatened breach of this agreement and that damages would be difficult
to quantify and would not be sufficient to compensate the Companies for the breach. Accordingly, if I breach or threaten to breach any of the terms of this Agreement, any of the Companies, in addition to any other rights or remedies, shall be
entitled to injunctive relief, specific enforcement or other equitable relief to prevent any actual or threatened breach and I waive the defense in any equitable proceeding that there is an adequate remedy at law for such breach.

  

	 	6.	Agreement Reasonable and Necessary. I agree that the duration, area and scope of my agreements in paragraphs 2 and 3 above are reasonable and necessary to
protect the legitimate business interests of the Companies, and do not unduly limit my ability to obtain employment or otherwise earn a living at the same general level of economic benefit as I currently enjoy. If at the time of enforcement of this
agreement, a court shall hold (and such holding is not reversed on appeal) that the duration, area or scope provided for in paragraphs 2 or 3 above is unreasonable, then such duration, area or scope shall be reduced to the maximum duration, area and
scope that is not unreasonable. 

  

	 	7.	Confidential Information. I acknowledge that all confidential and non-public information obtained by me during my employment with any of the Companies concerning
their business or customers (“Confidential Information”) is the property of the Companies. Confidential Information includes, but is not limited to: customer lists, needs and information; product and services pricing and information;
information on target employees or customers; marketing and business development information; strategic plans and information; financial information; computer software use and information; personnel information and all other trade secrets of the
Companies. I will not at any time, during or after my employment, without the prior written consent of the CEO of Mercantile, disclose to any person other than a director, officer or appropriate employee of any of the Companies, or use for my own
account or for the account of any person other than a Company, any Confidential Information, except to the extent necessary to comply with applicable laws or to the extent that such information becomes generally known to and available for use by the
public other than as a result of my acts or omissions to act. Upon termination of my employment with a Company, or at the request of any of the Companies at any time, I will deliver to the Company that employed me or that makes the request, all
documents (including all documents stored electronically) containing Confidential Information or relating to the business or affairs of the Company that I may then possess or have under my control. 

  
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	 	8.	At Will Employment. I continue to be an at will employee. This Agreement does not confer on me any right to continue as an employee of any of the Companies. I
have the right, in my sole discretion, to resign at any time, and any of the Companies, in its sole discretion, may terminate my employment with it at any time. 

 

	 	9.	Amendments and Prior Agreements. No provision of this Agreement may be amended or waived, except by a written agreement signed by me and the CEO of Mercantile
which expressly refers to and amends this Agreement. This Agreement contains the entire agreement and understanding between me and the Companies with respect to the matters addressed by this Agreement, and no representation, promise, agreement, or
understanding, written or oral, with respect to such matters that are not contained in this Agreement shall be of any force or effect. This Agreement shall survive the termination of my employment. 

 

	 	10.	Successors, Assigns, Benefit and Reliance. This Agreement shall inure to my benefit and to the benefit of the Companies, their successors and assigns. Each of
the Companies is expressly authorized to rely upon and enforce my agreements and obligations set forth in this Agreement. 

  

	 	11.	Governing Law. This Agreement shall be governed by and construed in accordance with the laws of the State of Michigan, without giving effect to the principles of
conflicts of law. Each party agrees to the exclusive venue of the State or Federal Courts located in Kent County, Michigan and waives any right to assert any defense of lack of subject matter jurisdiction, improper venue or preferred venue in any
action commenced in such courts. 

 This Agreement is effective this
             day of                     ,
2        . 
  

	
	EMPLOYEE
	
	  

	(Sign Name Above)
	
	  

	
	  

	
	  

	(Print Name and Address)

  
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 EXHIBIT B 
 RELEASE OF ALL LIABILITY 
 This Release of All Liability Agreement (“Agreement”)
is entered into between
                                         
    (“Employee”) and Mercantile Bank Corporation and Mercantile Bank of Michigan (together referred to as “Mercantile” or “Employer”). 
 1. In return for the payments and benefits described in the attached Employment Agreement, Employee unconditionally releases and forever discharges the Released Parties (as defined below) from any and all
Covered Claims (as defined below). 
 (a) The Released Parties include Employer, Employer’s Affiliates, and all of their
owners, officers, directors, employees, and agents. Employer’s Affiliates include Employer’s predecessors, successors, parents, subsidiaries and other affiliated organizations. 

(b) The Covered Claims include any claim or cause of action arising out of or relating to any act, omission or occurrence up to and
including the date Employee signs this Agreement. This includes any claim or cause of action arising out of or relating to Employee’s employment and termination of employment with Employer, including claims and causes of action under any
statute, regulation, ordinance, or rule, including but not limited to: Title VII of the Civil Rights Act of 1964, the Age Discrimination in Employment Act of 1967, the Older Workers Benefit Protection Act, the Employee Retirement Income Security
Act, the Americans with Disabilities Act, the Family and Medical Leave Act, the Michigan Civil Rights Act, the Michigan Whistleblowers’ Protection Act, and the Michigan Persons With Disabilities Civil Rights Act, all as amended. The Covered
Claims also include any claim or cause of action for breach of any commitment or agreement (except the attached agreement), and any claim or cause of action under the common law, or arising out of public policy, including but not limited to claims
or causes of action for intentional infliction of emotional distress, negligence, or defamation. 
 (c) Employee acknowledges
that Employee is not seeking any short-term and/or long-term disability benefits and waives any and all claims to same. 
 (d)
Covered Claims do not include Employee’s rights to vested benefits under the terms of Employer’s 401(k) qualified retirement plan. This Agreement does not prohibit Employee from filing a charge or participating in an investigation by the
United States Equal Employment Opportunity Commission, but by executing this Agreement, Employee waives and releases any right Employee might otherwise have to any recovery of damages, attorney fees or any other monetary or equitable relief or
benefit that might result from such charge or investigation. 

 2. Employee agrees that, to Employee’s knowledge, Employee has not sustained any disabling personal
injury and/or occupational disease due to Employee’s employment at Employer and/or due to the termination of that employment. 
 3.
Employee verifies that Employee has or will immediately deliver to Mercantile all Mercantile property in Employee’s possession, custody and/or control including, without limitation, all documents or recordings (including any and all copies) in
hard copy, electronic form or otherwise, containing confidential information, as well as all supplies, equipment, computers, cellular and smart phones, credit cards, checks, petty cash, office keys, access cards and the like, and all materials and
documents of any kind related to Employer or any of its Affiliates, whether prepared by Employee or anyone else that is in Employee’s possession, custody or control. 
 4. Employee agrees not to initiate or join in critical or derogatory statements in written, oral or electronic form about any of the Released Parties. 

5. Employee agrees that neither Employer nor any of its Affiliates will have any obligation to employ Employee or consider Employee for employment in the
future. 
 6. Employee agrees and understands as follows. 
 (a) Employee has 21 days after receiving this Agreement to consider this Agreement. Employee may elect in Employee’s sole discretion to sign this Agreement before expiration of the 21 day period and
if Employee does so it is agreed that Employee will waive the balance of the 21 day period. Immediately upon signing this Agreement Employee will deliver the signed copy to Mercantile’s Senior Vice President of Human Resources. If Employee does
not sign this Agreement within the 21 day period, the Agreement is withdrawn by Employer and is null and void. 
 (b) Employee
has the right to revoke this Agreement within 7 days after signing it, by delivering written notice of revocation during that period to Mercantile’s Senior Vice President of Human Resources and this Agreement will not become effective or
enforceable until the 7 day revocation period has expired without revocation as provided above. (“Effective Date”). 

(c) Employer advises Employee to consult with an attorney of Employee’s choosing about this Agreement before signing it. 

7. Except for Employee’s Employment Agreement and Non-Compete and Non-Solicitation Agreement, this Agreement contains the entire understanding of
the parties with respect to the subject matter hereof and supersedes all prior agreements and understandings relating to the subject matter hereof. No change, modification, amendment, addition to or alleged waiver of this Agreement or any of its
terms, provisions, or covenants shall be valid unless it is in writing and signed by the party against whom it is sought to be enforced. 

  
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 8. Employee and Employer agree that this Agreement is not evidence of any wrongdoing whatsoever by Employer,
but is entered into so that Employee and Employer can amicably end their relationship. 
 9. If any term, covenant and/or provision of this
Agreement is deemed invalid or illegal by a court of competent jurisdiction, all other terms, covenants and provisions of this Agreement shall remain in full force and effect. 
 10. This Agreement and any matters relating hereto shall be construed in accordance with and shall be governed by the laws of the United States of America and the internal laws of the State of Michigan,
as applicable, without application of choice of law principles. The parties agree that any action related to this Agreement shall be brought and heard in the Circuit Court for Kent County, Michigan or the United States District Court for the Western
District of Michigan and the parties agree and consent to jurisdiction and venue in those courts. 
 11. This Agreement shall be binding on
Employee and Employee’s spouse, heirs, administrators and assigns. 
 12. By signing below Employee freely, knowingly and voluntarily
enters into this Release of All Liability without any duress or coercion. Employee has carefully and completely read this entire Agreement, and Employee understands and agrees with all of the provisions in this Agreement. 

 

							
	EMPLOYEE	 		 	EMPLOYER
			
	  
	 		 	  

			
	Date:                     ,
20        	 		 	Date:                     ,
20        

  
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