Filed Pursuant to Rule 424(b)(3)
Registration No.: 333-228658

YOUR VOTE IS VERY IMPORTANT
   
PROSPECTUS OF FIRST MERCHANTS CORPORATION FOR UP TO
6,442,260 SHARES OF COMMON STOCK AND
PROXY STATEMENT OF MBT FINANCIAL CORP.

The Board of Directors of First Merchants Corporation (“First Merchants”) and the Board of Directors of MBT Financial Corp. (“MBT”) have approved an Agreement and Plan of Reorganization and Merger (the “Merger Agreement”), pursuant to which MBT will merge with and into First Merchants (the “Merger”). This proposed strategic business combination will combine two like-minded, high performing community banks and further each of their strategic objectives. Following the Merger, the combined company will have 136 full-service branch locations in four states (namely, Indiana, Michigan, Ohio and Illinois) and approximately $11.3 billion in assets, $7.8 billion in loans, $8.8 billion in deposits, and total shareholders’ equity of $1.6 billion.

If the Merger Agreement is approved by shareholders holding at least sixty-six and two-thirds percent (66 2/3%) of the outstanding shares of MBT and the Merger is subsequently completed, each share of MBT common stock owned by an MBT shareholder will be converted into the right to receive a 0.2750 (the “Exchange Ratio”) share of First Merchants common stock. First Merchants will pay cash for any fractional shares resulting from application of the Exchange Ratio. The Exchange Ratio is subject to adjustments for stock splits, stock dividends, recapitalization, or similar transactions.

First Merchants common stock is listed on The NASDAQ Global Select Market under the symbol “FRME.” On October 9, 2018, the last business day prior to the public announcement of the Merger, the closing price of a share of First Merchants common stock was $45.71, which, after giving effect to the Exchange Ratio of 0.2750, results in an implied value of approximately $12.57 per share of MBT common stock as of such date. On December 18, 2018, the latest practicable date before the date of this proxy statement and prospectus, the closing price of a share of First Merchants common stock was $35.86, which, after giving effect to the Exchange Ratio of 0.2750, results in an implied value of approximately $9.86 per share of MBT common stock as of such date. You should obtain a current market quotation for First Merchants before you vote.

We cannot complete the Merger unless shareholders holding at least sixty-six and two-thirds percent (66 2/3%) of the issued and outstanding shares of common stock of MBT vote to approve the Merger Agreement. MBT will hold a special meeting of its shareholders to vote on this merger proposal. Your vote is very important. Whether or not you plan to attend the shareholder meeting, please take the time to vote by completing the enclosed proxy card and mailing it in the enclosed envelope. If you sign, date and mail your proxy card without indicating how you want to vote, your proxy will be counted as a vote in favor of the Merger Agreement. Not returning your card will have the same effect as a vote against the Merger Agreement.

The date, time and place of the meeting are as follows:

February 14, 2019, 10:00 a.m., local time
10 Washington Street
Monroe, Michigan 48161

This proxy statement and prospectus provides you with detailed information about the special meeting and the proposed Merger. It also contains or references information about MBT and First Merchants. You can also get information about First Merchants from publicly available documents that have been filed with the Securities and Exchange Commission.

We strongly support the Merger of our companies. The Board of Directors of MBT recommends that you vote in favor of the Merger Agreement.

For a discussion of certain risk factors which you should consider in evaluating the Merger, see “Risk Factors” beginning on page 23. We encourage you to read this entire document carefully.

Neither the Securities and Exchange Commission nor any state securities commission has approved or disapproved of the securities to be issued pursuant to this proxy statement and prospectus or determined if this proxy statement and prospectus is truthful or complete. Any representation to the contrary is a criminal offense.

These securities are not savings or deposit accounts or other obligation of any bank or non-bank subsidiary of either of our companies, and they are not insured by the Federal Deposit Insurance Corporation, the Deposit Insurance Fund or any other federal or state governmental agency.

Proxy statement and prospectus dated December 21, 2018, and first mailed to MBT shareholders on or about December 26, 2018.

ADDITIONAL INFORMATION

This document incorporates important business and financial information about First Merchants from other documents filed by First Merchants with the Securities and Exchange Commission (“SEC”) that are not delivered with or included in this document. This information (including the documents incorporated herein by reference) is available to you without charge upon your written or oral request. You may request these documents in writing or by telephone at the following addresses and telephone numbers:

First Merchants Corporation
200 East Jackson Street
Muncie, Indiana 47305
Attention: Brian T. Hunt,
Corporate Secretary
Telephone: (765) 747-1500

To ensure timely delivery, shareholders must request the documents containing the information described above no later than five (5) business days prior to the date of the special meeting of the MBT shareholders. Accordingly, if you would like to make such a request, please do so by February 7, 2019, in order to receive the requested information before the meeting.

You can also obtain copies of the documents incorporated by reference in this document through the SEC’s website at www.sec.gov. See “WHERE YOU CAN FIND ADDITIONAL INFORMATION” on page 71.

MBT FINANCIAL CORP.
10 Washington Street
Monroe, Michigan 48161

NOTICE OF SPECIAL MEETING OF
SHAREHOLDERS TO BE HELD ON
FEBRUARY 14, 2019

To Our Shareholders:

We will hold a special meeting of the shareholders of MBT Financial Corp. (“MBT”) on February 14, 2019, at 10:00 a.m., local time, at 10 Washington Street, Monroe, Michigan 48161.

The purposes of the special meeting are the following:

The proxy statement and prospectus describes the Merger Agreement and the proposed Merger in detail and includes, as Annex A, the complete text of the Merger Agreement. We urge you to read these materials for a description of the Merger Agreement and the proposed Merger. In particular, you should carefully read the section captioned “Risk Factors” beginning on page 23 of the accompanying proxy statement and prospectus for a discussion of certain risk factors relating to the Merger. The Board of Directors of MBT has fixed the close of business on December 18, 2018, as the record date for determining those shareholders who are entitled to notice of, and to vote at, the special meeting and any adjournment or postponement of the special meeting. Approval of the Merger Proposal requires the affirmative vote of shareholders holding at least sixty-six and two-thirds percent (66 2/3%) of the outstanding shares of MBT common stock. Approval of the Merger-Related Compensation Proposal and the Adjournment Proposal only requires the affirmative vote of at least a majority of the shares of MBT common stock voting at the meeting, in person or by proxy, so long as a quorum is present.

The MBT Board of Directors recommends that you vote “FOR” (1) approval of the Merger Proposal; (2) approval of the Merger-Related Compensation Proposal; and (3) approval of the Adjournment Proposal.

Whether or not you plan to attend the special meeting in person, please submit your proxy by completing, signing, and dating the enclosed proxy card and returning it as soon as possible using the enclosed postage-prepaid envelope. If you attend the special meeting, you may vote in person if you wish, even if you have previously submitted your proxy. Not submitting your proxy will have the same effect as a vote against the Merger Proposal.

FORWARD-LOOKING STATEMENTS

This document, and the information included or incorporated by reference into it, contain forward-looking statements made pursuant to the safe-harbor provisions of the Private Securities Litigation Reform Act of 1995. Such forward-looking statements can often, but not always, be identified by the use of words like “believe,” “continue,” “pattern,” “estimate,” “project,” “intend,” “anticipate,” “expect” and similar expressions, or future or conditional verbs such as “will,” “would,” “should,” “could,” “might,” “can,” “may,” or similar expressions. These forward-looking statements include, but are not limited to, statements relating to the benefits of the proposed Merger between First Merchants and MBT, including future financial and operating results, cost savings, enhanced revenues, and accretion/dilution to reported earnings that may be realized from the Merger, as well as other statements of expectations regarding the Merger, and other statements of First Merchants’ goals, intentions and expectations; statements regarding First Merchants’ business plan and growth strategies; statements regarding the asset quality of First Merchants’ loan and investment portfolios; and estimates of First Merchants’ risks and future costs and benefits, whether with respect to the Merger or otherwise.

These forward-looking statements are subject to significant risks, assumptions and uncertainties that may cause results to differ materially from those set forth in forward-looking statements, including, among other things: the risk that the businesses of the First Merchants and MBT will not be integrated successfully or such integration may be more difficult, time-consuming or costly than expected; expected revenue synergies and cost savings from the Merger may not be fully realized or realized within the expected time frame; revenues following the Merger may be lower than expected; customer and employee relationships and business operations may be disrupted by the Merger; the ability to obtain required regulatory and shareholder approvals, and the ability to complete the Merger on the expected time frame; possible changes in economic and business conditions; the existence or exacerbation of general geopolitical instability and uncertainty; the ability of First Merchants to integrate recent acquisitions and attract new customers; possible changes in monetary and fiscal policies, and laws and regulations; the effects of easing restrictions on participants in the financial services industry; the cost and other effects of legal and administrative cases; possible changes in the credit worthiness of customers and the possible impairment of collectability of loans; fluctuations in market rates of interest; competitive factors in the banking industry; changes in the banking legislation or regulatory requirements of federal and state agencies applicable to banks and bank holding companies; continued availability of earnings and excess capital sufficient for the lawful and prudent declaration of dividends; changes in market, economic, operational, liquidity, credit and interest rate risks associated with First Merchants’ and MBT’s business; and other risks and factors identified in First Merchants’ filings with the SEC.

Neither First Merchants nor MBT undertakes any obligation to update any forward-looking statement, whether written or oral, relating to the matters discussed herein unless required to under the federal securities laws. In addition, First Merchants’ and MBT’s past results of operations do not necessarily indicate either of their anticipated future results, whether the Merger is effectuated or not.

TABLE OF CONTENTS

QUESTIONS AND ANSWERS ABOUT THE MERGER
AND THE SHAREHOLDER MEETING

You are also being asked to vote on two other proposals (completion of the Merger is not conditioned upon approval of these additional proposals):

Finally, while your Board of Directors is unaware of any matter for action by shareholders at the special meeting other than the Merger Proposal and the Adjournment Proposal, the enclosed proxy will give discretionary authority to the persons named in the proxy with respect to other matters which may properly come before the special meeting. It is the intention of the persons named in the proxy to vote with respect to such matters in accordance with the recommendations of the Board of Directors of MBT or, if no recommendations are given, in their best judgment.

Your vote by phone or internet is valid as authorized by the Michigan Business Corporation Act.

For shares held in street name, you should follow the voting instructions provided by your broker or nominee. You may complete and mail a voting instruction card to your broker or nominee or, in some cases, submit voting instructions by telephone or the internet. If you provide specific voting instructions by mail, telephone, or internet, your broker or nominee will vote your shares as you have directed. If you hold your shares in street name, please note that only your brokerage firm can sign a proxy on your behalf. The Board of Directors urges you to contact the person responsible for your account today and instruct them to execute a proxy on your behalf for the special meeting.

If you choose to vote at the special meeting:

Bring the proxy (for record holders) or proof of beneficial ownership (for street name holders), such as a recent brokerage statement or a letter from your bank or broker, and proof of identity for admission to the special meeting.

You should review the background of and reasons for the Merger described in greater detail beginning on page 35.

Because the Exchange Ratio is fixed (except for customary anti-dilution adjustments), the value of the Merger Consideration that you will receive will depend on the market price of First Merchants common stock when you receive your shares of First Merchants common stock. The implied per share value of the Merger Consideration, based upon First Merchants’ closing stock price on December 18, 2018, the most recent practicable trading day before this proxy statement and prospectus was finalized, was $9.86 per share. No assurance can be given that the current market price of First Merchants common stock will be equivalent to the market price of First Merchants common stock on the date that shares of First Merchants common stock are received by an MBT shareholder or at any other time. You should obtain current market prices for shares of First Merchants common stock which is listed on The NASDAQ Global Select Market under the symbol “FRME.”

the section captioned “MATERIAL U.S. FEDERAL INCOME TAX CONSEQUENCES” beginning on page 60) who exchanges all of its shares of MBT common stock for shares of First Merchants common stock pursuant to the Merger will not recognize any gain or loss on the exchange for federal income tax purposes, except with respect to any cash received in lieu of a fractional share of First Merchants common stock. A U.S. Holder who receives cash in lieu of a fractional share of First Merchants common stock will be treated as having received such fractional share of First Merchants common stock pursuant to the Merger and then as having sold that fractional share of First Merchants common stock for cash. As a result, a U.S. Holder will generally recognize gain or loss equal to the difference between the amount of cash received and the U.S. Holder’s basis in the fractional share of First Merchants common stock determined as described above. At the closing of the Merger, First Merchants will receive an opinion from their tax attorneys confirming these tax consequences. Such opinion will comply with the regulations and guidance of the SEC with respect to the persons entitled to rely on tax opinions contained in the Registration Statement on Form S-4, of which this proxy and prospectus is a part. See “MATERIAL U.S. FEDERAL INCOME TAX CONSEQUENCES” beginning on page 60. Your individual tax consequences will depend on your personal situation. You should consult your tax advisor for a full understanding of the tax consequences of the Merger to you.

Morrow Sodali
470 West Avenue
Stamford, Connecticut 06902
Shareholders May Call Toll Free: (800) 662-5200
Banks and Brokers May Call: (203) 658-9400
Email: mbtf@morrowsodali.com

SUMMARY

This summary highlights selected information from this proxy statement and prospectus. Because this is a summary, it does not contain all of the information that is important to you. You should carefully read this entire document, including the documents incorporated herein by reference, and the other documents to which we have referred you before you decide how to vote. See “Where You Can Find Additional Information” on page 71 for a description of documents that we incorporate by reference into this document. Each item in this summary includes a page reference that directs you to a more complete description in this document of the topic discussed.

Description of First Merchants Corporation (page 62)

First Merchants Corporation
200 East Jackson Street
Muncie, Indiana 47305
(765) 747-1500

First Merchants is a financial holding company headquartered in Muncie, Indiana and was organized in September 1982. First Merchants common stock is listed on The NASDAQ Global Select Market under the symbol “FRME.” First Merchants has one full-service Indiana commercial bank charter, First Merchants Bank, which opened for business in Muncie, Indiana, in March 1893. First Merchants Bank also operates First Merchants Private Wealth Advisors as a division of First Merchants Bank. First Merchants Bank has 116 full-service branches in thirty-one Indiana, two Illinois and two Ohio counties. First Merchants Bank’s business activities are currently limited to one significant business segment, which is community banking.

As of September 30, 2018, First Merchants had consolidated assets of $9.8 billion, consolidated deposits of $7.6 billion and shareholders’ equity of $1.4 billion. As of December 31, 2017, First Merchants and its subsidiaries had 1,684 full-time equivalent employees.

Description of MBT Financial Corp. (page 63)

MBT Financial Corp.
10 Washington Street
Monroe, Michigan 46161
(734) 241-3431

MBT is a bank holding company incorporated under Michigan law and headquartered in Monroe, Michigan. MBT’s wholly-owned bank subsidiary is Monroe Bank & Trust, a Michigan commercial bank. MBT was organized in 2000 at the direction of the management of Monroe Bank & Trust. Monroe Bank & Trust was incorporated and chartered as Monroe State Savings Bank under the laws of the State of Michigan in 1905. In 1940, Monroe Bank & Trust consolidated with Dansard Bank and moved to the present address of its main office. Monroe Bank & Trust operated as a unit bank until 1950 when it opened its first branch office in Ida, Michigan. It then continued its expansion to its present total of 20 branch offices, including its main office. Monroe Bank & Trust changed its name from “Monroe State Savings Bank” to “Monroe Bank & Trust” in 1968. Monroe Bank & Trust operates 20 banking offices in Monroe and Wayne Counties in Michigan. In addition to Monroe Bank & Trust, MBT’s other direct subsidiary is MB&T Financial Services, Inc., a Michigan corporation. MBT has no employees other than its three officers, each of whom is also an employee and officer of Monroe Bank & Trust and who serve in their capacity as officers of MBT without compensation. As of September 30, 2018, Monroe Bank & Trust had 286 full-time employees and 10 part-time employees.

At September 30, 2018, on a consolidated basis, MBT had assets of approximately $1.3 billion, deposits of approximately $1.2 billion, and shareholders’ equity of approximately $121 million.

The Merger (page 34)

We have attached a copy of the Merger Agreement to this document as Annex A. Please read the Merger Agreement in its entirety. It is the legal document that governs the Merger.

The Merger Agreement provides that, if all of the conditions are satisfied or waived, MBT will be merged with and into First Merchants and, immediately thereafter, MBT will cease to exist. Immediately following the Merger, Monroe Bank & Trust will be consolidated and merged with and into First Merchants Bank and Monroe Bank & Trust will cease to exist. We expect to complete the Merger during the first quarter of 2019.

Reasons for the Merger (page 38)

First Merchants. First Merchants’ Board of Directors considered a number of financial and nonfinancial factors in making its decision to merge with MBT, including its respect for the ability and integrity of MBT’s Board of Directors, management and staff. The Board believes that expanding First Merchants’ operations in the market areas where MBT operates offers financial and strategic benefits to First Merchants and MBT as a combined company.

MBT. In considering the Merger with First Merchants, MBT’s Board of Directors collected and evaluated a variety of economic, financial and market information regarding First Merchants and its subsidiaries, their respective businesses and First Merchants’ reputation and future prospects. In the opinion of MBT’s Board of Directors, favorable factors included First Merchants’ strong earnings and stock performance, its management, the compatibility of its markets to those of MBT, the likelihood of regulatory approvals of the Merger, and the attractiveness of First Merchants’ offer from a financial perspective.

Opinion of MBT’s Financial Advisor (page 40)

MBT’s Board of Directors retained Sandler O’Neill & Partners, L.P. (“Sandler O’Neill”) to render a fairness opinion in connection with the proposed Merger. At the meeting of MBT’s Board of Directors on October 8, 2018, Sandler O’Neill delivered to MBT’s Board of Directors its oral opinion, which was subsequently confirmed by delivery of a written opinion, dated October 9, 2018, to the effect that, as of the date of the written opinion and based upon and subject to the conditions, limitations, qualifications and assumptions set forth therein, the Exchange Ratio was fair to the holders of MBT Common Stock from a financial point of view.

The full text of the written opinion of Sandler O’Neill, which sets forth the assumptions made, procedures followed, matters considered and limitations on the review undertaken in connection with the opinion of Sandler O’Neill, is attached as Annex B to this proxy statement and prospectus. MBT shareholders are urged to read Sandler O’Neill’s written opinion carefully and in its entirety. Sandler O’Neill’s opinion is limited solely to the fairness, from a financial point of view, of the Exchange Ratio to be received in the Merger by the holders of MBT common stock and does not address MBT’s underlying business decision to effect the Merger or the relative merits of the Merger as compared to any alternative business strategies or transactions that might be available with respect to MBT. Sandler O’Neill’s opinion does not constitute a recommendation to any shareholder of MBT as to how such shareholder should vote or act with respect to any matter relating to the Merger or otherwise.

What MBT Shareholders Will Receive (page 34)

If the Merger Agreement is approved and the Merger is subsequently completed, each outstanding share of MBT common stock will be converted into the right to receive the Exchange Ratio of 0.2750 share of First Merchants common stock. The Exchange Ratio is subject to adjustment for stock splits, stock dividends, recapitalization or similar transactions. Each MBT shareholder that would otherwise be entitled to receive a fractional share of First Merchants common stock will receive cash in lieu of such fractional share.

Because the Exchange Ratio is fixed (except for customary anti-dilution adjustments), the value of the Merger Consideration that you will receive will depend on the market price of First Merchants common stock when you receive your shares of First Merchants common stock. The implied per share value of the Merger Consideration, based upon First Merchants’ closing stock price on December 18, 2018, the most recent practicable trading day before this proxy statement and prospectus was finalized, was $9.86 per share. No assurance can be given that the current market price of First Merchants common stock will be equivalent to the market price of First Merchants common stock on the date that shares of First Merchants common stock are received by an MBT shareholder or at any other time.

Within three (3) business days following the effective date of the Merger, First Merchants will cause the exchange agent to mail a letter of transmittal to each person who was, immediately prior to the effective time of the Merger, a holder of record of MBT common stock. The letter of transmittal will contain instructions for use in effecting the surrender of MBT stock certificates (or shares held in book-entry form) in exchange for the consideration to which such person may be entitled pursuant to the Merger Agreement.

What First Merchants Shareholders Will Receive (page 35)

First Merchants shareholders will not receive any consideration in the Merger. After the Merger, First Merchants shareholders will continue to own the same number of First Merchants shares owned before the Merger.

The MBT Special Shareholders Meeting (page 28)

The special meeting of MBT shareholders will be held on February 14, 2019, at 10:00 a.m., local time, at 10 Washington Street, Monroe, Michigan 48161.

At the special meeting, MBT shareholders will be asked:

MBT Recommendation to Shareholders (page 29)

MBT’s Board of Directors approved and adopted the Merger Agreement and approved and authorized the proposed Merger. MBT’s Board of Directors concluded that entering into the Merger Agreement and completing the Merger and the other transactions contemplated by the Merger Agreement are in the best interest of MBT and the MBT shareholders. MBT’s Board of Directors recommends that MBT shareholders vote “FOR” (1) approval of the Merger Proposal, (2) approval of the Merger-Related Compensation Proposal, and (3) approval of the Adjournment Proposal. In reaching its determination, MBT’s Board of Directors considered a number of factors, which are described in the section captioned “THE MERGER—MBT’s Reasons for the Merger” beginning on page 38. Because of the wide variety of factors considered, MBT’s Board of Directors did not believe it practicable, nor did it attempt, to quantify or otherwise assign relative weight to the specific factors it considered in reaching its decision.

MBT Special Meeting Record Date; Vote Required (page 28)

Only MBT shareholders of record as of the close of business on December 18, 2018, are entitled to notice of, and to vote at, the MBT special meeting and any adjournments or postponements of the special meeting. As of the record date, there were 23,025,525 shares of MBT common stock outstanding. Approval of the Merger Proposal requires the affirmative vote of holders of at least sixty-six and two-thirds percent (66 2/3%) of the outstanding shares of MBT common stock entitled to vote. The approval of the Merger-Related Compensation Proposal and the Adjournment Proposal requires more votes to be cast in favor of the proposal than are cast against it. As provided by the Michigan Business Corporation Act, an abstention is not a “vote cast.” Abstentions from voting and broker non-votes, if any, on Proposal 2 (Merger-Related Compensation Proposal) and Proposal 3 (Adjournment Proposal) are not treated as votes cast and, therefore, will have no effect on the outcome of the passage of the proposal. You can vote your shares by attending the MBT special meeting and voting in person, or you can vote by proxy by marking the enclosed proxy card with your vote, signing it and mailing it in the enclosed return envelope. You may also vote by internet or by phone by following the instructions on the proxy card. You can revoke your proxy at any time before the special meeting by sending a written notice of revocation, submitting a new proxy or by attending the special meeting and voting in person.

No approval by First Merchants shareholders is required.

Voting Agreement (page 28)

On the date the Merger Agreement was executed, each member of the Board of Directors of MBT, plus Patriot Financial Partners and Castle Creek Capital Partners, entered into a voting agreement with First Merchants to cause all MBT common stock owned by each of them of record or beneficially on such date to be voted in favor of the Merger Proposal. See “THE MERGER AGREEMENT—Voting Agreement” on page 28. As of the record date, the members of MBT’s Board of Directors, Patriot Partners, and Castle Creek had power to vote, or caused to be voted, an aggregate of 5,092,450 shares of MBT common stock outstanding, representing 22.1% of the outstanding shares on that date.

What We Need to Do to Complete the Merger (page 54)

Completion of the Merger depends on a number of conditions being met or waived. In addition to our compliance with the Merger Agreement, these conditions include among others:

Under the Merger Agreement, receipt of the tax opinion and the reliance letter referred to above may be waived by First Merchants and MBT, respectively, prior to the closing of the Merger. However, if receipt of such opinion and reliance letter were waived, MBT would resolicit its shareholders if any change in the tax consequences were material and disclose the reasons for the waiver and the change in tax consequences. Such resolicitation would require an amendment to the Registration Statement on Form S-4, of which this proxy statement and prospectus is a part.

Regulatory Approvals (page 51)

The Merger cannot be completed until First Merchants Bank receives necessary regulatory approvals, which include the approval of the Indiana Department of Financial Institutions (the “Indiana DFI”) and the Federal Deposit Insurance Corporation (the “FDIC”). First Merchants Bank has filed an application with the Indiana DFI and the FDIC, but cannot be certain when or if such approval will be obtained. First Merchants Bank has also

sent required notice to the Michigan Department of Insurance and Financial Services (the “Michigan DIFS”). First Merchants has also requested that the Federal Reserve Board of Governors (the “Federal Reserve”) waive its right to receive an application in connection with the Merger as permitted under Regulation Y of the Bank Holding Company Act.

Conduct of Business Pending Merger (page 57)

Under the terms of the Merger Agreement, MBT and First Merchants must carry on their business in the ordinary course and, subject to certain limited exceptions, may not take certain extraordinary actions without first obtaining the other party’s consent.

We have agreed that MBT will continue to pay quarterly dividends at no more than the current rate of $0.10 per share until the Merger closes. We will each cooperate to insure that MBT shareholders will receive only one (1) quarterly dividend for the quarter in which the Merger closes, and not a separate dividend from both First Merchants and MBT.

Agreements of First Merchants (pages 51 and 59)

In the Merger Agreement, First Merchants has agreed, among other matters, to:

Management and Operations After the Merger (page 58)

MBT’s corporate existence will cease after the Merger. Accordingly, except as otherwise described herein, directors and officers of MBT will not serve in such capacities after the effective date of the Merger. Upon completion of the Merger, the current officers and directors of First Merchants will continue to serve in such capacities.

Interests of Directors and Officers in the Merger That Are Different From Your Interests (page 51 and 52)

You should be aware that some of directors and executive officers of MBT and Monroe Bank & Trust may have interests in the Merger that are different from, or in addition to, their interests as shareholders. Both MBT’s Board of Directors and First Merchants’ Board of Directors were aware of these interests and took them into consideration in approving the Merger Agreement and the Merger. These interests are as follows:

that was frozen to new director participants in 2006 (“Director DBO Plan”). The Director DBO Plan provides death benefits to the participating director’s beneficiaries in the event of the death of the director during service as a director. In the event of a change in control of MBT, the Director DBO Plan also provides those same death benefits during the director’s post retirement and for the life of the director. In connection with entering into the Merger Agreement, each of the participating directors in the Director DBO Plan executed agreements that terminate their respective rights under the Director DBO Plan upon the consummation of the Merger in exchange for a cash payment. The cash payment represents approximately 66 and two-thirds percent (66²∕3%) of the projected actuarial net present value of the benefit arrangement to the participating directors. Under the terms of these termination agreements the participating directors will receive the following payments upon the closing of the Merger: Mr. Carlton $645,009, Mr. Chaffin $507,324, Mr. Daly $461,764, Mr. Miller $645,009 and Ms. Shah $640,788. At the election of each of those participating directors, such amount may be paid in shares of common stock of First Merchants.

Termination of the Merger (page 55)

Both First Merchants and MBT can mutually agree to terminate the Merger Agreement before we complete the Merger. In addition, either MBT or First Merchants acting alone can terminate the Merger Agreement under the circumstances described on page 55.

MBT has agreed to pay First Merchants a termination fee of $12,680,000 if:

Either party may terminate the Merger Agreement if the Merger has not been completed by June 30, 2019, provided the terminating party is not then in material breach of any representation warranty or covenant and, provided, further, that if the sole impediment to closing is the lack of any necessary regulatory approval, then such termination date shall be extended to September 30, 2019. In the event of such termination, First Merchants has agreed to pay MBT a termination fee of $2,500,000 if the Merger Agreement is terminated by either party as a result of the failure to obtain any of the required regulatory approvals and such failure is a result of a regulatory issue directly and solely related to First Merchants.

Material U.S. Federal Income Tax Consequences (page 60)

It is a condition to the closing of the Merger that Bingham Greenebaum Doll LLP deliver an opinion, effective as of the date on or about this proxy statement and prospectus, to First Merchants substantially to the effect that, for United States federal income tax purposes, the Merger will be treated as a “reorganization” within

the meaning of Section 368(a) of the Internal Revenue Code. Such opinion will comply with the regulations and guidance of the SEC with respect to the persons entitled to rely on tax opinions contained in the Registration Statement on Form S-4, of which this proxy and prospectus is a part. This opinion will not, however, bind the Internal Revenue Service (the “IRS”) which could take a different view.

Determining the actual tax consequences of the Merger to you can be complicated. We suggest you consult with your own tax advisors with respect to the tax consequences of the Merger to you.

For a more detailed description of the material federal income tax consequences of the Merger to First Merchants and MBT shareholders, see “MATERIAL U.S. FEDERAL INCOME TAX CONSEQUENCES” on page 60.

Comparative Rights of First Merchants and MBT Shareholders (page 64)

The rights of shareholders of First Merchants and MBT differ in some respects. The rights of holders of First Merchants common stock are governed by the laws of the State of Indiana, including the Indiana Business Corporation Law, and First Merchants’ Articles of Incorporation and Bylaws. The rights of holders of MBT common stock are governed by the laws of the State of Michigan, including the Michigan Business Corporation Act, and MBT’s Articles of Incorporation and Bylaws. Upon completion of the Merger, MBT shareholders who receive First Merchants common stock will take such stock subject to First Merchants Articles of Incorporation and Bylaws.

Completion of the Merger (page 51)

The Merger will become effective when we file Articles of Merger with the Secretary of the State of Indiana and the Certificate of Merger with the Corporations Division of the Michigan Department of Licensing and Regulatory Affairs (the “Michigan Corporations Division”), or at such later date and time as may be set forth in the Articles of Merger and Certificate of Merger. We expect the Merger to become effective during the first quarter of 2019.

Comparative Market Price Information

Shares of First Merchants common stock are listed on The NASDAQ Global Select Market under the symbol “FRME.” Shares of MBT common stock are listed on The NASDAQ Global Select Market under the symbol “MBTF.” The following table presents quotation information for First Merchants common stock and for MBT common stock on October 9, 2018, the business day before the Merger was publicly announced, and December 18, 2018, the last practicable trading day for which information was available prior to the date of this proxy statement and prospectus.

The market value of the aggregate consideration that MBT shareholders will receive in the Merger is approximately $291.7 million (or $12.57 per share of MBT common stock) based on 23,195,704 shares of MBT common stock outstanding (representing the sum of 22,990,430 shares of MBT common stock outstanding on October 9, 2018 and 205,274 shares of MBT common stock to be issued immediately prior to the effective time of the Merger pursuant to certain outstanding stock only stock appreciation rights (SOSARs) and restricted stock units (RSUs) awards), and First Merchants’ closing stock price of $45.71 on October 9, 2018, the business day before the Merger was publicly announced.

The market value of the aggregate consideration that MBT shareholders will receive in the Merger is approximately $227.1 million (or $9.86 per share of MBT common stock) based on 23,025,525 shares of MBT common stock outstanding (as described above) and First Merchants’ closing stock price of $35.86 on December 18, 2018, the last practicable trading day prior to the date of this proxy statement and prospectus.

Also set forth below for the closing price of First Merchants common stock on October 9, 2018, and December 18, 2018, is the equivalent pro forma price of MBT common stock, which we determined by multiplying the applicable price of First Merchants common stock by the number of shares of First Merchants common stock we are issuing for each share of MBT common stock in the Merger, which is the Exchange Ratio of 0.2750. The equivalent pro forma price of MBT common stock shows the implied value to be received in the Merger by MBT shareholders who receive First Merchants common stock in exchange for a share of MBT common stock on these dates.

We suggest you obtain a current market quotation for First Merchants common stock. We expect that the market price of First Merchants common stock will fluctuate between the date of this document and the date on which the Merger is completed and thereafter. Because the Exchange Ratio is fixed (except for customary anti-dilution adjustments) and the market price of First Merchants common stock is subject to fluctuation, the value of the shares of First Merchants common stock that MBT shareholders will receive in the Merger may increase or decrease prior to and after the Merger.

Comparative Per Share Data

The following table sets forth the basic and diluted earnings per common share, book value per share and cash dividends per share for each of First Merchants and MBT on a historical basis, for First Merchants on a pro forma combined basis, and on a pro forma combined basis per MBT equivalent share.

The pro forma data gives effect to: (i) the proposed acquisition of MBT; and (ii) the proposed issuance of 6,378,818 shares of First Merchants common shares to MBT shareholders, which assumes 23,195,704 shares of MBT common stock are outstanding at the time of closing (representing the sum of 22,990,430 shares of MBT common stock outstanding on October 9, 2018 and 205,274 shares of MBT common stock to be issued immediately prior to the effective time of the Merger pursuant to certain outstanding SOSARs and RSUs awards). For purposes of presenting pro forma basic and diluted earnings per share, cash dividends per share, and book value per share, the comparative pro forma data assumes that First Merchants and MBT had been combined throughout the period shown. The data in the column “Pro Forma Equivalent Per MBT Share” shows the effect of the Merger from the perspective of an owner of MBT common stock, and was obtained by multiplying the Combined Pro Forma Amounts for First Merchants by the Exchange Ratio of 0.2750.

We expect that we will incur reorganization and restructuring expenses as a result of combining our two companies. We also anticipate that the Merger will provide the combined company with financial benefits that include reduced operating expenses and the opportunity to earn more revenue. The pro forma information, while helpful in illustrating the financial characteristics of the combined company, does not take into account these expected expenses or these anticipated financial benefits, and does not attempt to predict or suggest future results. It also does not necessarily reflect what the historical results of the merged company would have been had our companies been merged during the periods presented.

The information in the following table is based on historical financial information of MBT and First Merchants. The information with respect to First Merchants and MBT are included in their respective annual and quarterly reports previously filed with the SEC, which have been incorporated into this document by reference. See “WHERE YOU CAN FIND ADDITIONAL INFORMATION” beginning on page 71 for a description of documents that First Merchants and MBT incorporate by reference into this document and how to obtain copies of them.

FIRST MERCHANTS AND MBT
HISTORICAL AND PRO FORMA PER SHARE DATA

SELECTED CONSOLIDATED FINANCIAL DATA

The following tables set forth certain summary historical consolidated financial data for each of our companies. First Merchants’ and MBT’s balance sheet and income statement data as of and for the five years in the period ended December 31, 2017 are taken from each of First Merchants’ and MBT’s respective audited financial statements (which data and financial statements are presented on a consolidated basis). The financial data at and for the nine months ended September 30, 2018 and September 30, 2017 is derived from the unaudited financial statements of First Merchants and MBT and, in the opinion of each such company’s management, its respective statements and data reflect all adjustments, consisting only of normal recurring adjustments, necessary for a fair presentation of such information at and for those dates. Ratios for the nine months ended September 30, 2018 and September 30, 2017 are annualized. Results for the nine months ended September 30, 2018 do not necessarily indicate results expected or anticipated for the entire year.

The following tables also set forth certain summary unaudited pro forma consolidated financial information for First Merchants and MBT reflecting the Merger. The pro forma disclosures are being presented to provide additional information in support of the pro forma data included under the “Comparative Per Share Data” section of this SUMMARY. As a result, this condensed pro forma presentation is not intended to comply with the disclosure requirements under Article 11 of Regulation S-X. The income statement information presented gives effect to the Merger as if it occurred on the first day of the period presented. The balance sheet information presented gives effect to the Merger as if it occurred on the last day of the period presented. The pro forma data gives effect to: (i) the proposed acquisition of MBT; and (ii) the proposed issuance of 6,378,818 shares of First Merchants common shares to MBT shareholders, which assumes 23,195,704 shares of MBT common stock are outstanding at the time of closing (representing the sum of 22,990,430 shares of MBT common stock outstanding on October 9, 2018 and 205,274 shares of MBT common stock to be issued immediately prior to the effective time of the Merger pursuant to certain outstanding SOSARs and RSUs awards).

The pro forma information reflects the purchase method of accounting, with MBT’s assets and liabilities recorded at their estimated fair values as of the date presented. The actual fair value adjustments to the assets and the liabilities of MBT will be made on the basis of appraisals and evaluations that will be made as of the date the Merger is completed. Thus, the actual fair value adjustments may differ significantly from those reflected in these pro forma financial statements. In the opinion of First Merchants’ management, the estimates used in the preparation of these pro forma financial statements are reasonable under the circumstances.

We expect that we will incur reorganization and restructuring expenses as a result of combining our companies. We also anticipate that the Merger will provide the combined company with financial benefits that include reduced operating expenses and the opportunity to earn more revenue. The pro forma information, while helpful in illustrating the financial characteristics of the combined company under two sets of assumptions, does not take into account these expected expenses or anticipated financial benefits, and does not attempt to predict or suggest future results.

This selected financial data is only a summary and you should read it in conjunction with First Merchants’ consolidated financial statements and related notes incorporated into this document by reference. See “WHERE YOU CAN FIND ADDITIONAL INFORMATION” on page 71 for a description of documents that we incorporate by reference into this document and how to obtain copies of such documents.

FIRST MERCHANTS
FIVE YEAR SUMMARY OF SELECTED HISTORICAL CONSOLIDATED FINANCIAL DATA
(Dollars in Thousands, Except Per Share Amounts)

MBT
FIVE YEAR SUMMARY OF SELECTED HISTORICAL CONSOLIDATED FINANCIAL DATA
(Dollars in Thousands, Except Per Share Amounts)

FIRST MERCHANTS
UNAUDITED PRO FORMA SUMMARY OF SELECTED CONSOLIDATED FINANCIAL DATA
(Dollars in Thousands, Except Per Share Amounts)

FIRST MERCHANTS
UNAUDITED PRO FORMA SUMMARY OF SELECTED CONSOLIDATED FINANCIAL DATA
(Dollars in Thousands, Except Per Share Amounts)

NOTES TO UNAUDITED PRO FORMA SUMMARY OF SELECTED
CONSOLIDATED FINANCIAL DATA
(Dollars in Thousands, Except Per Share Amounts)

Note 1—Determination and Allocation of Purchase Price

Each share of MBT common stock that is outstanding immediately prior to the Merger will be converted into the right to receive a 0.2750 share of First Merchants common stock. The table below assumes (a) the issuance of 6,378,818 shares of First Merchants common shares to MBT shareholders, which assumes 23,195,704 shares of MBT common stock are outstanding at the time of closing (representing the sum of 22,990,430 shares of MBT common stock outstanding on October 9, 2018 and 205,274 shares of MBT common stock to be issued immediately prior to the effective time of the Merger pursuant to certain outstanding SOSARs and RSUs awards) multiplied by the Exchange Ratio, and (b) that the amount payable to certain directors relating to the termination of their rights under the Director DBO Plan will be made in an aggregate cash payment of $2,899,894 (as opposed to the issuance of shares of First Merchants common stock issuable at the election of each such director, which shares are included in the aggregate number of shares registered under the registration statement of which this proxy statement and prospectus is a part).

RISK FACTORS

In addition to general investment risks and the other information contained in or incorporated by reference into this proxy statement and prospectus, including the matters addressed under the section “Forward-Looking Statements,” you should carefully consider the following risk factors in deciding how to vote for the Merger Proposal presented in this proxy statement and prospectus. You should also consider the other information in this proxy statement and prospectus and the other documents incorporated by reference into this proxy statement and prospectus. See “Where You Can Find ADDITIONAL Information” on page 71.

Risk Factors Relating to the Merged Company and Its Industry

Combining the two (2) companies may be more difficult, costly or time consuming than expected and the anticipated benefits and costs savings of the Merger may not be realized.

Even though First Merchants has acquired other financial services businesses in the past, the success of the Merger with MBT will depend on a number of factors, including, but not limited to, the merged company’s ability to:

First Merchants’ failure to successfully integrate MBT into its business may adversely affect its financial condition and results of operations.

The value of the consideration to be received by MBT shareholders in the Merger will fluctuate.

If the Merger is completed, MBT shareholders will receive a number of shares of First Merchants common stock based on a fixed Exchange Ratio of 0.2750 share of First Merchants common stock for each share of MBT common stock. Because the market value of First Merchants common stock may (and likely will) fluctuate, the value of the stock consideration you receive for your shares may also fluctuate. The market value of First Merchants common stock could fluctuate for any number of reasons, including those specific to First Merchants and those that influence trading prices of equity securities generally. As a result, you will not know the exact value of the shares of First Merchants common stock you will receive at the time you must vote your shares. The value of First Merchants common stock on the closing date of the Merger may be greater or less than the market price of First Merchants common stock on the record date, on the date of this proxy statement and prospectus or on the date of the special meeting.

We encourage you to obtain a current market quotation for First Merchants common stock because the value of any First Merchants shares you receive may be more or less than the value of such shares as of the date of this document.

The merged company’s allowance for loan losses may not be adequate to cover actual loan losses.

The merged company’s loan customers may not repay their loans according to their terms, and the customers’ collateral securing the payment of their loans may be insufficient to assure repayment. As of September 30, 2018, approximately 67% of the merged company’s loans are comprised of commercial real estate and commercial lines of credit and term and development loans, which can result in higher loan loss experience than residential loans in economic downturns. The underwriting, review and monitoring that will be performed by the merged company’s officers and directors cannot eliminate all of the risks related to these loans.

Each of First Merchants and MBT make various assumptions and judgments about the collectability of their respective loan portfolios and provide an allowance for loan losses based on a number of factors. If the assumptions are wrong or the facts and circumstances subsequently and materially change, the allowance for loan losses and Merger-related credit marks may not be sufficient to cover the merged company’s loan losses. The merged company may have to increase its allowance for loan losses in the future, which could decrease its net income.

Deterioration in loan quality will adversely affect the merged company’s results of operations and financial condition.

Each of First Merchants and MBT seek to mitigate the risks inherent in their respective loan portfolios by adhering to sound underwriting practices. Their lending strategies also include emphasizing diversification on a geographic, industry and customer level, regular credit quality reviews and management reviews of large credit exposures and loans experiencing deterioration of credit quality. There is continuous review of their loan portfolios, including internally administered loan “watch” lists and independent loan reviews. These evaluations take into consideration identified credit problems, as well as the possibility of losses inherent in the loan portfolio that are not specifically identified. Although First Merchants and MBT believe their underwriting and loan review procedures are appropriate for the various kinds of loans they make, the merged company’s results of operation and financial condition will be adversely affected in the event the quality of their respective loan portfolios deteriorates. As of September 30, 2018, First Merchants had $21.4 million and MBT had $11.4 million in non-performing loans, including restructured loans.

Changes in interest rates may reduce the merged company’s net interest income.

Like other financial institutions, the merged company’s net interest income is its primary revenue source. Net interest income is the difference between interest earned on loans and investments and interest expense incurred on deposits and other borrowings. The merged company’s net interest income will be affected by changes in market rates of interest, the interest rate sensitivity of its assets and liabilities, prepayments on its loans and investments and limits on increases in the rates of interest charged on its residential real estate loans.

The merged company will not be able to predict or control changes in market rates of interest. Market rates of interest are affected by regional and local economic conditions, as well as monetary policies of the Federal Reserve Board. The following factors also may affect market interest rates:

Each of First Merchants and MBT has policies and procedures designed to manage the risks from changes in market interest rates; however, despite risk management, changes in interest rates could adversely affect the merged company’s results of operations and financial condition.

Changes in economic conditions and the geographic concentration of the merged company’s markets could adversely affect the merged company’s financial condition.

The merged company’s success will depend to a great extent upon the general economic conditions of the Midwest Region of the United States. Unlike larger banks that are more geographically diversified, the merged company will provide banking and financial services to customers primarily located in these areas. Favorable economic conditions may not exist in the merged company’s markets.

A continued economic slowdown could have the following consequences:

Anti-takeover defenses may delay or prevent future mergers.

Provisions contained in First Merchants’ Articles of Incorporation and Bylaws and certain provisions of Indiana law could make it more difficult for a third party to acquire First Merchants, even if doing so might be beneficial to First Merchants shareholders. See “COMPARISON OF COMMON STOCK—Anti-Takeover Provisions” on page 68. These provisions could limit the price that some investors might be willing to pay in the future for shares of First Merchants common stock and may have the effect of delaying or preventing a change in control.

If the Merger is not completed, the parties will have incurred substantial expenses without realizing the expected benefits.

First Merchants and MBT have incurred substantial expenses in connection with the transactions described in this proxy statement and prospectus. The completion of the Merger depends on the satisfaction of several conditions. We cannot guarantee that these conditions will be met. MBT expects to incur approximately $12.5 million in pre-tax Merger-related expenses and First Merchants expects to incur approximately $7.7 million in pre-tax Merger-related expenses, which include legal, accounting and financial advisory expenses and which excludes any contract termination fees, if applicable. Although some of these expenses will not be incurred if the Merger is not completed, others will and such expenses could have a material adverse impact on the financial condition of First Merchants and MBT because they would not have realized the expected benefits of the Merger. There can be no assurance that the Merger will be completed.

The Merger Agreement may be terminated in accordance with its terms and the Merger may not be completed, which could have a negative impact on MBT.

The Merger Agreement with First Merchants is subject to a number of conditions which must be fulfilled in order to close. Those conditions include: MBT shareholder approval, regulatory approvals, the continued accuracy of certain representations and warranties by both parties and the performance by both parties of certain covenants and agreements. There can be no assurance that the Merger will be completed.

In addition, certain circumstances exist where MBT may choose to terminate the Merger Agreement, including the acceptance of a superior acquisition proposal. See “THE MERGER—Exchange of MBT Common Stock” for a more complete discussion of the consideration to be paid in the Merger and “THE MERGER AGREEMENT—Termination; Waiver; Amendment” for a more complete discussion of the circumstances under which the Merger Agreement could be terminated. There can be no assurance that the conditions to closing the Merger will be fulfilled or that the Merger will be completed.

If the Merger Agreement is terminated, there may be various consequences to MBT, including:

If the Merger Agreement is terminated by MBT due to its acceptance of a superior acquisition proposal or by First Merchants due to the failure of MBT’s Board of Directors to recommend approval of the Merger Agreement to its shareholders by reason of a superior acquisition proposal or for certain related reasons, then MBT has agreed pay to First Merchants a $12,680,000 termination fee. The payment of the termination fee could have a material adverse effect on MBT’s financial condition, and there can be no assurance that MBT would be able to complete a transaction with a party willing to pay an equivalent or more attractive price than the price First Merchants has agreed to pay in the Merger.

The termination fee and the restrictions on solicitation contained in the Merger Agreement may discourage other companies from trying to acquire MBT.

Until the completion of the Merger, with some exceptions, MBT is prohibited from soliciting, initiating, encouraging or participating in any discussion of or otherwise considering any inquiries or proposals that may lead to an acquisition proposal, such as a merger or other business combination transaction, with any person other than First Merchants. In addition, MBT has agreed to pay a termination fee of $12,680,000 to First Merchants if the MBT Board of Directors does not recommend approval of the Merger Agreement to the MBT shareholders by reason of a superior acquisition proposal. These provisions could discourage other companies from trying to acquire MBT even though such other companies might be willing to offer greater value to MBT’s shareholders than First Merchants has offered in the Merger Agreement. The payment of the termination fee also could have a material adverse effect on MBT’s financial condition.

The market price of First Merchants common stock after the Merger may be affected by factors different from those affecting the shares of MBT or First Merchants currently.

Upon completion of the Merger, holders of MBT common stock will become holders of First Merchants common stock. First Merchants’ business differs in important respects from that of MBT, and, accordingly, the results of operations of the combined company and the market price of First Merchants common stock after the completion of the Merger may be affected by factors different from those currently affecting the independent results of operations of each of First Merchants and MBT. First Merchants is, and will continue to be, subject to the risks described in First Merchants’ Annual Report on Form 10-K for the fiscal year ended December 31, 2017, as updated by subsequent Quarterly Reports on Form 10-Q and Current Reports on Form 8-K, all of which are filed with the SEC and incorporated by reference into this proxy statement and prospectus. See the documents incorporated by reference in this proxy statement and prospectus and referred to under “Where You Can Find Additional Information” on page 71.

MBT shareholders will have a reduced ownership and voting interest after the Merger and will exercise less influence over management.

MBT’s shareholders currently have the right to vote in the election of the MBT Board of Directors and on other matters affecting MBT. When the Merger occurs, each MBT shareholder will become a shareholder of First Merchants with a percentage ownership of the combined organization that is smaller than the shareholder’s percentage ownership of MBT. Because of this, MBT’s shareholders will have less influence over the management and policies of First Merchants than they now have over the management and policies of MBT.

The fairness opinion received by the MBT Board of Directors in connetion with the Merger prior to the signing of the Merger Agreement has not been updated to reflect changes in circumstances since the date of such opinion.

The written opinion rendered by Sandler O’Neill, financial advisor to MBT, on October 9, 2018, was based upon information available as of such date. Sandler O’Neill’s opinion has not been updated to reflect changes that may occur or may have occurred after the date on which it was delivered, including changes to the operations and prospects of MBT or First Merchants, changes in general market and economic conditions, or other changes. Any such changes may alter the relative value of MBT or First Merchants, or the prices of shares of MBT common stock or First Merchants common stock by the time the Merger is completed. The written opinion does not speak as of the date the Merger will be completed or as of any date other than the date of such written opinion. For a description of the opinion that MBT received from its financial advisor, please see “The Merger – Opinion of MBT’s Financial Advisor,” beginning on page 40.

Risk Factors Relating to the Merger

Regulatory approvals may not be received, may take longer than expected or may impose conditions that are not presently anticipated or that could have an adverse effect on the combined company following the Merger.

The transactions contemplated in the Merger Agreement cannot be completed until First Merchants receives necessary regulatory approvals, which include the approval of the Federal Deposit Insurance Corporation and Indiana Department of Financial Institutions. In determining whether to grant these approvals, the regulators

consider a variety of factors, including the regulatory standing of each party and the factors described under “THE MERGER—Regulatory Approvals.” An adverse development in either party’s regulatory standing or these factors could result in an inability to obtain approval or delay its receipt. These regulators may impose conditions on the completion of the Merger or the Bank Merger or require changes to the terms of the Merger or the Bank Merger. Such conditions or changes could have the effect of delaying or preventing completion of the Merger or the Bank Merger or imposing additional costs on or limiting the revenues of the combined company following the Merger and the Bank Merger, any of which might have an adverse effect on the combined company following the Merger. Regulatory approvals could also be impacted based on the status of any ongoing investigation of either party or its customers, including subpoenas to provide information or investigations, by a federal, state or local governmental agency.

Certain of MBT’s directors and executive officers have interests in the Merger that may differ from the interests of MBT’s shareholders.

MBT shareholders should be aware that some of MBT’s executive officers and directors have interests in the Merger and have arrangements that are different from, or in addition to, those of MBT shareholders generally. MBT’s Board of Directors was aware of and considered these interests, among other matters, when making its decision to approve and adopt the Merger Agreement, and in recommending that MBT shareholders vote in favor of approving the Merger Agreement.

For a description of these interests, see “THE MERGER—Interests of Certain Persons in the Merger” on page 51.

MBT and First Merchants will be subject to business uncertainties and contractual restrictions while the Merger is pending.

Uncertainty about the effect of the Merger on employees and customers may have an adverse effect on MBT or First Merchants. These uncertainties may impair MBT’s or First Merchants’ ability to attract, retain and motivate key personnel until the Merger is completed, and could cause customers and others that deal with MBT or First Merchants to seek to change existing business relationships with MBT or First Merchants. Retention of certain employees by MBT or First Merchants may be challenging while the Merger is pending, as certain employees may experience uncertainty about their future roles with MBT or First Merchants. If key employees depart because of issues relating to the uncertainty and difficulty of integration or a desire not to remain with MBT or First Merchants, MBT’s and/or First Merchants’ business could be harmed. In addition, subject to certain exceptions, each of MBT and First Merchants has agreed to operate its business in the ordinary course prior to closing. See “THE MERGER AGREEMENT—Restrictions Affecting the Parties Prior to Completion of the Merger” on page 57 for a description of the restrictive covenants applicable to MBT and First Merchants while the Merger is pending.

The shares of First Merchants common stock to be received by MBT shareholders as a result of the Merger will have different rights from the shares of MBT common stock.

Upon completion of the Merger, MBT shareholders will become First Merchants shareholders and their rights as shareholders will be governed by the First Merchants Articles of Incorporation and Bylaws. The rights associated with MBT common stock may be different from the rights associated with First Merchants common stock. Please see “Comparison of Common Stock” beginning on page 64 for a discussion of the different rights associated with First Merchants common stock.

The Merger may fail to qualify as a tax-free reorganization for federal tax purposes, resulting in your recognition of taxable gain or loss in respect of your shares of MBT common stock.

MBT intends the Merger to qualify as a tax-free “reorganization” within the meaning of Section 368(a) of the Internal Revenue Code. Although the IRS will not provide a ruling on the matter, First Merchants will, as a condition to closing, obtain an opinion from legal counsel that the Merger will constitute a “reorganization” for federal tax purposes. Such opinion will comply with the regulations and guidance of the SEC with respect to the persons entitled to rely on tax opinions contained in the Registration Statement on Form S-4, of which this proxy and prospectus is a part. This opinion does not bind the IRS or prevent the IRS from adopting a contrary position. If the Merger fails to qualify as a reorganization, you generally would recognize gain or loss on each share of MBT common share surrendered in an amount equal to the difference between your adjusted tax basis in that share and the fair market value of the Merger consideration received in exchange for that share upon completion of the Merger.

THE MBT SPECIAL MEETING
Special Meeting of Shareholders of
MBT Financial Corp.

General Information

We are furnishing this document to the shareholders of MBT in connection with the solicitation by the Board of Directors of MBT of proxies for use at the MBT special meeting of shareholders to be held on February 14, 2019, at 10:00 a.m., local time, at 10 Washington Street, Monroe, Michigan 48161. This document is first being mailed to MBT shareholders on December 26, 2018, and includes the notice of MBT special meeting, and is accompanied by a form of proxy.

Matters To Be Considered

The purposes of the special meeting are as follows:

Pursuant to the Merger Agreement, MBT will merge into First Merchants. The Merger Agreement is attached to this document as Annex A and is incorporated in this document by reference. For a description of the Merger Agreement, see “THE MERGER AGREEMENT,” beginning on page 53.

Vote Required

Approval of the Merger Proposal requires the affirmative vote of at least sixty-six and two-thirds percent (66 2/3%) of the outstanding shares of MBT common stock. Approval of the Merger-Related Compensation Proposal and the Adjournment Proposal only requires the affirmative vote of at least a majority of the shares of MBT common stock cast at the meeting, in person or by proxy, so long as a quorum is present. As provided by the Michigan Business Corporation Act, an abstention is not a “vote cast.” Abstentions from voting and broker non-votes, if any, on Proposal 2 (Merger-Related Compensation Proposal) and Proposal 3 (Adjournment Proposal) are not treated as votes cast and, therefore, will have no effect on the outcome of the passage of the proposal. MBT has fixed December 18, 2018, as the record date for determining those MBT shareholders entitled to notice of, and to vote at, the special meeting. Accordingly, if you were an MBT shareholder of record at the close of business on December 18, 2018, you will be entitled to notice of and to vote at the special meeting. Each share of MBT common stock you own on the record date entitles you to one (1) vote on each matter presented at the special meeting. At the close of business on the record date of December 18, 2018, there were 23,025,525 shares of MBT common stock outstanding held by approximately 3,200 shareholders of record.

Voting Agreement

As of the record date, MBT’s Board of Directors had voting power with respect to an aggregate of 1,155,725 shares of MBT common stock outstanding, representing 5.0% of the outstanding shares on that date. As of the record date, the members of MBT’s Board of Directors, together with Patriot Partners, and Castle Creek had power to vote, or caused to be voted, an aggregate of 5,092,450 shares of MBT common stock outstanding, representing 22.1% of the outstanding shares on that date. Each member of the Board of Directors

of MBT, Patriot Financial Partners, and Castle Creek Capital Partners entered into a voting agreement with First Merchants to cause all shares of MBT common stock owned by them of record or beneficially to be voted in favor of the Merger Proposal. See “THE MERGER AGREEMENT—Voting Agreement” on page 59.

Proxies

If you are an MBT shareholder, you should have received a proxy card for use at the MBT special meeting with this proxy statement and prospectus. The accompanying proxy card is for your use in voting at the special meeting if you are unable or do not wish to attend the special meeting in person. The shares represented by proxies properly signed and returned will be voted at the special meeting as instructed by the MBT shareholder giving the proxies. Proxy cards that are properly signed and returned but do not have voting instructions will be voted “FOR” approval of the Merger Proposal and “FOR” approval of the Adjournment Proposal.

If you deliver a properly signed proxy card, you may revoke your proxy at any time before it is exercised by:

Because approval of the Merger Proposal requires the affirmative vote of at least sixty-six and two-thirds percent (66 2/3%) of the outstanding shares of MBT common stock, abstentions will have the same effect as voting “AGAINST” approval of the Merger Proposal. Accordingly, your Board of Directors urges all MBT shareholders to vote by proxy by completing, dating and signing the accompanying proxy and returning it promptly in the enclosed postage-paid envelope. Abstentions and broker non-votes will have no effect on the Adjournment Proposal since it only requires a majority of the shares of MBT common stock voting at the meeting. You should not send stock certificates with your proxy card.

Solicitation of Proxies

MBT will bear the entire cost of soliciting proxies from and mailing proxies to its shareholders in connection with the MBT special meeting. In addition to solicitation of proxies by mail, proxies may be solicited personally or by telephone by directors, officers and certain employees of MBT, who will not be specially compensated for such soliciting.

In soliciting proxies, no one has any authority to make any representations and warranties about the Merger or the Merger Proposal in addition to or contrary to the provisions stated in this document. No statement regarding the Merger, the Merger Agreement or the Merger Proposal should be relied upon except as expressly stated in this document.

MBT has retained Morrow Sodali L.L.C., a proxy solicitation firm, to assist MBT in soliciting proxies with respect to the special meeting. MBT anticipates that the costs of Morrow Sodali L.L.C.’s services will be approximately $12,500, plus additional fees in the event certain services are requested. In addition, MBT’s financial advisor Donnelly Penman may assist in the solicitation of proxies without any additional compensation beyond what is disclosed in the proxy.

Recommendation of the MBT Board of Directors

MBT’s Board of Directors has approved the Merger Agreement. MBT’s Board of Directors believes that the Merger is fair to and in the best interests of MBT and its shareholders. The Board recommends that the MBT shareholders vote “FOR” approval of the Merger Proposal and “FOR” approval of the Adjournment Proposal. See “THE MERGER— MBT’s Reasons for the Merger” on page 38.

Other Matters

The special meeting of MBT shareholders has been called for the purposes set forth in the Notice to MBT shareholders included in this document. Your Board of Directors is unaware of any matter for action by shareholders at the special meeting other than as stated in the Notice or in this proxy statement and prospectus. However, the enclosed proxy will give discretionary authority to the persons named in the proxy with respect to matters which are not known to your Board of Directors as of the date hereof and which may properly come before the special meeting. It is the intention of the persons named in the proxy to vote with respect to such matters in accordance with the recommendations of the Board of Directors of MBT or, if no recommendations are given, in their best judgment. The approval of the transaction of any other business that may properly come before the special meeting generally requires more votes to be cast in favor of the proposal than are cast against it.

Beneficial Ownership of MBT Common Stock by Certain Shareholders

The following table shows, as of December 18, 2018, the beneficial ownership of MBT common stock of each person who beneficially owns more than five percent (5%) of MBT’s outstanding common stock, each MBT director, each of the executive officers of MBT and/or Monroe Bank & Trust and all of the directors and executive officers as a group. Unless otherwise indicated, each person has sole voting and investment power with respect to the shares set forth in the following table.

As of December 18, 2018, no person was known by MBT to be the beneficial owner of more than 5% of the outstanding shares of common stock of MBT, except as follows: