UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549

FORM 8-K/A

CURRENT REPORT

PURSUANT TO SECTION 13 OR 15(d) OF THE

SECURITIES EXCHANGE ACT OF 1934

Date of Report (Date of earliest event reported): March 26, 2018

Infrastructure and Energy Alternatives, Inc.

(Exact Name of Registrant as Specified in Charter)

Registrant’s telephone number, including area code: (765) 828-2580

M III Acquisition Corp. 3 Columbus Circle, 15th Floor, New York, New York 10019

(Former Name or Former Address, if Changed Since Last Report)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instruction A.2. below):

o    Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

o    Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

o    Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

o    Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e 4(c))

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).

Emerging growth company  x

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act.  o

Introductory Note

On March 26, 2018 (the “Closing Date”), the registrant consummated the previously announced business combination pursuant to that certain Agreement and Plan of Merger, dated November 3, 2017 (as amended, the “Merger Agreement”), by and among Infrastructure and Energy Alternatives, Inc. (f/k/a M III Acquisition Corp.), a Delaware corporation (the “Company”), IEA Energy Services LLC, a Delaware limited liability company (“IEA Services”), Wind Merger Sub I, Inc., a Delaware corporation and a wholly-owned subsidiary of the Company (“Merger Sub I”), Wind Merger Sub II, LLC, a Delaware limited liability company and a wholly-owned subsidiary of the Company (“Merger Sub II”), Infrastructure and Energy Alternatives, LLC, a Delaware limited liability company (“IEA Parent” or “Seller”), Oaktree Power Opportunities Fund III Delaware, L.P., a Delaware limited partnership (“Oaktree”), solely in its capacity as the seller’s representative and, solely for purposes of certain sections therein, M III Sponsor I LLC, a Delaware limited liability company (“Sponsor I LLC”), and M III Sponsor I LP, a Delaware limited partnership (“Sponsor I LP”), which provided for, among other things, the merger of Merger Sub I with and into IEA Services with IEA Services surviving such merger and, immediately thereafter, merging with and into Merger Sub II with Merger Sub II surviving such merger as an indirect, wholly-owned subsidiary of the Company (the “Mergers”) and, the issuances in connection therewith of shares of the registrant’s common stock, par value $0.0001 per share (“Common Stock”), and shares of the registrant’s Series A preferred stock, par value $0.0001 per share (“Series A Preferred Stock”) (together with the other transactions contemplated by the Merger Agreement, the “Business Combination”).

Upon the closing of the Business Combination (the “Closing”), the registrant changed its name from “M III Acquisition Corp.” to “Infrastructure and Energy Alternatives, Inc.”  Unless the context otherwise requires, “we,” “us,” “our” and the “Company” refer to the registrant and its subsidiaries. “M III” refers to the registrant prior to the Closing, and “IEA” refers to the business of IEA Services before it became a subsidiary of Company upon the Closing.

On March 29, 2018, the Company filed a Current Report on Form 8-K (the “Original Form 8-K”) to report the closing of the Business Combination and related matters under Items 1.01, 1.02, 2.01, 2.03, 3.02, 3.03, 4.01, 5.02 and 9.01 of Form 8-K. Due to the large number of events to be reported under the specified items of Form 8-K, this Form 8-K/A is being filed to amend the Original Form 8-K to include additional matters related to the closing of the Business Combination under Items 5.01, 5.03, 5.05, 5.06 and 8.01 of Form 8-K.

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Item 5.01 Changes in Control of the Registrant

The disclosure set forth under “Introductory Note” and “Item 2.01. Completion of Acquisition or Disposition of Assets” in the Original 8-K is incorporated in this Item 5.01 by reference.

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Item 5.03 Amendments to Articles of Incorporation or Bylaws; Change in Fiscal Year.

The disclosure set forth in Item 3.03 of the Original 8-K is incorporated in this Item 5.03 by reference.

Item 5.05 Amendments to the Registrant’s Code of Ethics, or Waiver of a Provision of the Code of Ethics.

On the Closing Date, the Board approved certain amendments to the Company’s Code of Ethics (the “Code”). The amendments were intended to update and bring the Code in line with current best practices. The Code, as amended, is available on our corporate website at www.iea.net.

Item 5.06 Change in Shell Company Status.

As a result of the Business Combination, which fulfilled the definition of an “initial Business Combination” as required by M III’s Amended and Restated Certificate of Incorporation, the Company ceased to be a shell company upon the closing of the Business Combination. The material terms of the Business Combination are described in M III’s definitive proxy statement filed with the SEC on February 9, 2018 (as supplemented, the “Proxy Statement”) in the section entitled “Proposal No. 1—Approval of the Business Combination” beginning on page 113 of the Proxy Statement, which is incorporated herein by reference.

Item 8.01 Other Events

Pursuant to certain of the previously announced commitment agreements between the Company, on the one hand, and certain financial advisors to Seller or the Company (the “Commitment Parties”), on the other hand, shares of Common Stock purchased in the open market or issued to the Commitment Parties, as applicable, are subject to lock-up restrictions that generally prohibit the sale, transfer or other disposition of securities of the Company for a period ending 90 days following the date of such agreements.

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Item 9.01 Financial Statements and Exhibits.

(d)  Exhibits:

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* Previously filed in the Original Form 8-K.

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SIGNATURE

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

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