CALCULATION OF REGISTRATION FEE

Title of Each Class of Securities to be Registered		Amount to be Registered				Proposed Maximum Offering Price Per Unit (1)				Proposed Maximum Aggregate Offering Price (1)				Amount of Registration Fee
Common Stock, par value $0.001 per share			1,650,104			$	73.70			$	121,612,664.80			$	14,094.91	(2)

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Filed Pursuant to Rule 424(b)(3)
Registration No. 333-210615

Prospectus Supplement
(To Prospectus Dated April 5, 2016)

1,650,104 Shares

Macquarie Infrastructure Corporation

 

The selling stockholders identified in this prospectus are offering an aggregate of up to 1,650,104 shares of our common stock, $0.001 par value per share (the “shares”), under this prospectus supplement and the accompanying prospectus. We will not receive any proceeds from the sale of shares hereunder. We are registering the offer and sale of the shares to satisfy certain registration rights of the selling stockholders.

Our common stock trades on the New York Stock Exchange, or the NYSE, under the symbol “MIC.” The last reported trading price of our common stock on August 15, 2017 was $72.76 per share.

The selling stockholders may sell the shares directly to purchasers or through broker-dealers or agents, who may receive compensation in the form of discounts, concessions or commissions. The selling stockholders may sell the shares in one or more transactions at any time at fixed prices, at market prices prevailing at the time of sale, at varying prices determined at the time of sale, or at negotiated prices. The selling stockholders will bear all fees, discounts, concessions or commissions of broker-dealers or agents in connection with the offering of the shares by the selling stockholders. See “Plan of Distribution” on page S- 7 of this prospectus supplement.

Investing in our common stock involves risks. See “Risk Factors” page S- 4 of this prospectus supplement, page 4 of the accompanying prospectus and in our Annual Report on Form 10-K for the year ended December 31, 2016, which is incorporated by reference into this prospectus supplement and the accompanying prospectus.

Neither the Securities and Exchange Commission nor any state securities commission has approved or disapproved of these securities or determined if this prospectus supplement or the accompanying prospectus is truthful or complete. Any representation to the contrary is a criminal offense.

 

The date of this prospectus supplement is August 16, 2017.

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Macquarie Infrastructure Corporation is not an authorized deposit taking institution for the purposes of the Banking Act 1959 (Commonwealth of Australia) and its obligations do not represent deposits or other liabilities of Macquarie Bank Limited ABN 46 008 583 542 (MBL). MBL does not guarantee or otherwise provide assurance in respect of the obligations of Macquarie Infrastructure Corporation.

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PROSPECTUS SUPPLEMENT

ABOUT THIS PROSPECTUS SUPPLEMENT			S-ii
INDUSTRY AND MARKET DATA			S-ii
FORWARD-LOOKING STATEMENTS			S-ii
PROSPECTUS SUPPLEMENT SUMMARY			S-1
RISK FACTORS			S-4
USE OF PROCEEDS			S-5
SELLING STOCKHOLDERS			S-5
PLAN OF DISTRIBUTION			S-7
LEGAL MATTERS			S-8
EXPERTS			S-8
WHERE YOU CAN FIND MORE INFORMATION			S-8

PROSPECTUS

ABOUT THIS PROSPECTUS			ii
PROSPECTUS SUPPLEMENT			iii
FORWARD-LOOKING STATEMENTS			iv
WHERE YOU CAN FIND MORE INFORMATION			vi
INCORPORATION OF CERTAIN DOCUMENTS BY REFERENCE			vii
MACQUARIE INFRASTRUCTURE CORPORATION			1
RISK FACTORS			4
USE OF PROCEEDS			11
RATIO OF EARNINGS TO FIXED CHARGES			12
DESCRIPTION OF OUR CAPITAL STOCK			13
DESCRIPTION OF DEBT SECURITIES			21
SELLING STOCKHOLDER			30
PLAN OF DISTRIBUTION			31
LEGAL MATTERS			33
EXPERTS			33

Neither we nor the selling stockholders have authorized anyone to provide any information other than that contained or incorporated by reference in this prospectus supplement and the accompanying prospectus or any free writing prospectus prepared by or on behalf of us or to which we have referred you. We and the selling stockholders take no responsibility for, and can provide no assurance as to the reliability of, any other information that others may give you. Neither we nor the selling stockholders are making an offer to sell these securities in any jurisdiction where the offer or sale is not permitted. You should assume that the information appearing in this prospectus supplement, the accompanying prospectus, any related free writing prospectus and the documents incorporated by reference herein or therein is accurate only as of their respective dates. Our business, financial condition, results of operations and prospects may have changed since those dates.

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Forward-looking statements in this prospectus and any prospectus supplement (including any documents incorporated by reference herein or therein) are subject to a number of risks and uncertainties, some of which are beyond our control, including, among other things:

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Our actual results, performance, prospects or opportunities could differ materially from those expressed in or implied by the forward-looking statements. A description of risks that could cause our actual results to differ appears under the caption “Risk Factors” and elsewhere in this prospectus supplement and in the documents incorporated by reference into this prospectus supplement such as our Annual Report on Form 10-K for the fiscal year ended December 31, 2016, our Quarterly Report on Form 10-Q for the quarter ended March 31, 2017, and our Quarterly Report on Form 10-Q for the quarter ended June 30, 2017. It is not possible to predict or identify all risk factors and you should not consider that description to be a complete discussion of all potential risks or uncertainties that could cause our actual results to differ.

In light of these risks, uncertainties and assumptions, you should not place undue reliance on any forward-looking statements. The forward-looking events discussed in this prospectus supplement (including any documents incorporated by reference herein or therein) may not occur. These forward-looking statements are made as of the date of this prospectus supplement. We undertake no obligation to publicly update or revise any forward-looking statements, whether as a result of new information, future events or otherwise, except as required by law. You should, however, consult further disclosures we may make in future filings with the SEC. See “Where You Can Find More Information” in this prospectus supplement.

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PROSPECTUS SUPPLEMENT SUMMARY

Macquarie Infrastructure Corporation

Macquarie Infrastructure Corporation, a Delaware corporation, is the successor to Macquarie Infrastructure Company LLC (MIC LLC), pursuant to the conversion (the Conversion), of MIC LLC from a Delaware limited liability company to a Delaware corporation on May 21, 2015. MIC LLC was formed on April 13, 2004. Except as otherwise specified, all references in this prospectus to “MIC,” “we,” “us,” and “our” refer (i) from and after the time of the Conversion, to Macquarie Infrastructure Corporation and its subsidiaries and (ii) prior to the Conversion, to the predecessor MIC LLC and its subsidiaries.

MIC Level Strategy

We intend to own and efficiently operate and grow a diversified portfolio of businesses with the aim of producing an attractive risk adjusted total stockholder return. We intend to achieve this by:

We expect these efforts, collectively, to produce growth in the amount of cash generated by our businesses and growth in our stockholder dividend.

General

We currently own and operate a diversified portfolio of businesses that provide services to other businesses, government agencies and individuals primarily in the United States. The businesses we own and operate are organized into four segments:

We buy, develop and invest in the growth of our businesses based on a general assumption that we will own them indefinitely. It is neither our intent nor our expectation that we will divest of a business at a particular point in our ownership or as a result of having achieved certain targets, financial or otherwise. This view of ownership as a long-term relationship does not preclude sales of assets when we believe that we have either maximized the amount of value in the asset relative to our capability, or the asset is more highly valued by another owner. Since listing in December 2004 and through December 31, 2016, we have divested a total

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of approximately $360.0 million in assets including partial interests in several non-U.S. businesses, two businesses in the United States and several of the facilities owned and operated by our Atlantic Aviation business. In general, we have redeployed the proceeds from these asset sales in the development of our remaining businesses either through investment in growth projects or acquisitions of small, “bolt-on” operations consistent with our view of MIC as a long-term owner.

Deployment of growth capital has been and is expected to continue to be an important part of our strategy and the creation of stockholder value. Our sources of growth capital include the capital generated by our businesses but not distributed as a cash dividend to our stockholders, capital generated through the issuance of additional debt and/or equity securities, or, as noted above, the proceeds of sales of certain assets.

Since 2006, we have owned and operated businesses in the four segments in which we operate today, having acquired a 50% interest in IMTT in May 2006 and Hawaii Gas in June of that year. Since then, and excluding the acquisition of the remaining half of IMTT and our initial investment in Bayonne Energy Center (BEC), we have deployed over $2.7 billion in the expansion or improvement of, or bolt-on acquisitions on behalf of our businesses through December 31, 2016. Over time, we expect to deploy growth capital of approximately $350.0 million per year in projects and bolt-on acquisitions across all of our businesses.

Importantly, we are not obligated to invest in the growth of any one business or segment. If the opportunities in any of our businesses or segments are insufficient or the risk adjusted returns are inadequate relative to our financial targets, we will seek to drive stockholder value through other means. That may mean that in some years we invest very little in growth and focus instead on operational improvement — driving “top line” increases and/or managing expenses (or the rate of growth in expenses) down. Further, although we find value in diversification and the generally uncorrelated nature of the businesses in our current portfolio, ideally we would prefer to have a portfolio of five or six lines of business as we had following our initial public offering. However, we do not intend to pursue diversification for the sake of diversification if the opportunities are insufficient in number or the expected returns are inadequate relative to our financial hurdles.

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In addition to the benefits associated with these characteristics, margins generated by most of our businesses generally can be expected to keep pace with historically normal rates of inflation. The price escalators built into many customer contracts, and the inflation and cost pass-through adjustments typically a part of pricing terms or provided for by the regulatory process to regulated businesses serve to insulate our businesses to a significant degree from the negative effects of inflation and commodity price risk. We sometimes employ hedging contracts in connection with our businesses’ floating rate debt and limited commodity price exposure.

Our Manager

We are a party to a Management Services Agreement with Macquarie Infrastructure Management (USA) Inc. (Manager), subject to the oversight and supervisions of our Board of Directors. Our Manager is a member of the Macquarie Group, a diversified international provider of financial, advisory and investment services. The Macquarie Group is headquartered in Sydney, Australia and is a global leader in the management of infrastructure investment vehicles on behalf of third-party investors and advising on the acquisition, disposition and financing of infrastructure assets.

Our Manager is responsible for and oversees the management of our operating businesses. Our Manager has assigned, or seconded, to us two of its employees to serve as our chief executive officer and chief financial officer and seconds or makes other personnel available as required. The services performed for us by our Manager are provided at our Manager’s expense, and include the compensation of our seconded personnel.

We pay our Manager a monthly base management fee based primarily on our market capitalization and holding company net debt and excluding debt in support of specific operating entities. Our Manager may also earn a performance fee if the quarterly total return for our stockholders (capital appreciation plus dividends) is positive and exceeds the quarterly total return of a U.S. utilities index benchmark, both in the quarter and cumulatively. If payable, a performance fee is equal to 20% of the difference between the benchmark return and the total return for our stockholders during the quarter. Our Manager may elect to invest its fees in shares of our common stock and may only change the election during a 20 trading day window following our earnings release. Any change would apply to fees incurred thereafter. The current method of settling both base management and performance fees, if any, is through the reinvestment of the fees in shares.

Principal Executive Offices

Our principal executive offices are located at 125 West 55 ^th Street, New York, NY 10019. Our telephone number at that location is (212) 231-1000. You may also obtain additional information about us from our website, www.macquarie.com/mic . Information on our website is not incorporated by reference into this prospectus or a part of this prospectus.

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otherwise dispose of some or all of the shares in private placement transactions exempt from, or not subject to the registration requirements of, the Securities Act.

The information in the following table is based on the selling stockholders’ representations to us regarding their ownership as of August 14, 2017.

		Shares of Common Stock Beneficially Owned Prior to Offering								Shares of Common Stock Covered by this Prospectus Supplement				Shares of Common Stock Beneficially Owned After Offering (2)
Name and Address of Beneficial Owner (1)		Shares				%								Shares				%
WDE Epic Aggregate LLC (3)			825,052				1.0	%			825,052				0				0	%
BWE Epic Holdings I, L.P. (4)			203,740					*			203,740				0				0	%
BWE Epic Holdings I-A, L.P. (4)			621,312					*			621,312				0				0	%
TOTAL			1,650,104				2.0	%			1,650,104				0				0	%

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PROSPECTUS

Common Stock
Preferred Stock
Debt Securities

Macquarie Infrastructure Corporation

Macquarie Infrastructure Corporation may sell, from time to time, shares of its common stock, par value $0.001 per share, shares of its preferred stock, par value $0.001 per share, and debt securities, which we refer to, together with the common stock and the preferred stock, as securities. Macquarie Infrastructure Management (USA) Inc., our manager, as a selling stockholder, which we refer to as our Manager or the Selling Stockholder, may sell, from time to time, shares of common stock in Macquarie Infrastructure Corporation. We or the Selling Stockholder may offer for sale the securities covered by this prospectus, as applicable, directly to purchasers or through underwriters, broker-dealers or agents, in public or private transactions, at prevailing market prices or at privately negotiated prices, including in satisfaction of certain contractual obligations. For additional information on the methods of sale, you should refer to the section of this prospectus entitled “Plan of Distribution.” We and the Selling Stockholder may offer these securities, as applicable, at prices and on terms determined at the time of offering.

The common stock covered by this prospectus is listed for trading on The New York Stock Exchange, or NYSE, under the symbol “MIC.”

We will provide more specific information about the terms of an offering of these securities in supplements to this prospectus. This prospectus may not be used to offer or sell securities unless accompanied by a prospectus supplement. You should read this prospectus and any applicable prospectus supplements and information incorporated by reference herein or therein carefully before you invest. If any underwriters, broker-dealers or agents are involved in any offering, the names of such underwriters, broker-dealers or agents and any applicable commissions or discounts or other compensation will be described in the applicable prospectus supplement relating to the offering.

Investing in the securities involves risks that are described in the “Risk Factors” section beginning on page 4 of this prospectus. Risks may also be described in an accompanying prospectus supplement and in information incorporated by reference herein or therein.

Neither the Securities and Exchange Commission nor any state securities commission has approved or disapproved of these securities or passed upon the adequacy or accuracy of this prospectus. Any representation to the contrary is a criminal offense.

The date of this prospectus is April 5, 2016.

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		Page
ABOUT THIS PROSPECTUS			ii
PROSPECTUS SUPPLEMENT			iii
FORWARD-LOOKING STATEMENTS			iv
WHERE YOU CAN FIND MORE INFORMATION			vi
INCORPORATION OF CERTAIN DOCUMENTS BY REFERENCE			vii
MACQUARIE INFRASTRUCTURE CORPORATION			1
RISK FACTORS			4
USE OF PROCEEDS			11
RATIO OF EARNINGS TO FIXED CHARGES			12
DESCRIPTION OF OUR CAPITAL STOCK			13
DESCRIPTION OF DEBT SECURITIES			21
SELLING STOCKHOLDER			30
PLAN OF DISTRIBUTION			31
LEGAL MATTERS			33
EXPERTS			33

Macquarie Infrastructure Corporation is not an authorized deposit-taking institution for the purposes of the Banking Act 1959 (Commonwealth of Australia) and its obligations do not represent deposits or other liabilities of Macquarie Bank Limited ABN 46 008 583 542 (MBL). MBL does not guarantee or otherwise provide assurance in respect of the obligations of Macquarie Infrastructure Corporation.

You should rely only on the information contained or incorporated by reference in this prospectus and any applicable prospectus supplement. We and the Selling Stockholder have not authorized any dealer, salesperson or other person to give any information or to make any representation other than those contained in or incorporated by reference into this prospectus, any applicable prospectus supplement or any free writing prospectus that may be provided to you by us or on our behalf. We and the Selling Stockholder take no responsibility for, and can provide no assurance as to the reliability of, any information or representation not contained in or incorporated by reference into this prospectus, any applicable prospectus supplement or any free writing prospectus that may be provided to you. This prospectus, any applicable prospectus supplement and any such free writing prospectus do not constitute an offer to sell or the solicitation of an offer to buy any securities other than the registered securities to which they relate, nor do this prospectus, any applicable prospectus supplement or any such free writing prospectus constitute an offer to sell or the solicitation of any offer to buy securities in any jurisdiction to any person to whom it is unlawful to make such offer or solicitation in such jurisdiction. You should not assume that the information contained in this prospectus, any applicable prospectus supplement, the documents incorporated herein and therein by reference and any such free writing prospectus is correct on any date after their respective dates, even though this prospectus, any applicable prospectus supplement and any such free writing prospectus are delivered or securities are sold on a later date. Our business, financial condition, results of operations and cash flows may have changed since those dates.

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ABOUT THIS PROSPECTUS

This prospectus is part of a registration statement on Form S-3 that we filed with the Securities and Exchange Commission, or SEC, using a “shelf” registration process. Under this shelf process, we may or the Selling Stockholder may sell, at any time and from time to time, any combination of the securities covered by this prospectus in one or more offerings. Because we are a well-known seasoned issuer, as defined in Rule 405 of the Securities Act of 1933, as amended, or the Securities Act, we or the Selling Stockholder may, from time to time, add and offer additional securities by filing a prospectus supplement with the SEC at the time of the offer.

Unless otherwise indicated or unless the context otherwise requires, all references in this prospectus to the “Company,” “we,” “us,” and “our” mean, collectively, Macquarie Infrastructure Corporation and Macquarie Infrastructure Company, LLC, our predecessor, and all of our subsidiaries included in our consolidated financial statements.

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PROSPECTUS SUPPLEMENT

This prospectus provides you with a general description of the securities that may be offered. Each time that securities are offered, we will provide a prospectus supplement that will contain specific information about the terms of that offering. The prospectus supplement may also add to, update or change information contained in or incorporated by reference into this prospectus. Any statement that we make in this prospectus shall be modified or superseded by any inconsistent statement made by us in an accompanying prospectus supplement for an offering. You should read both this prospectus and any accompanying prospectus supplement, especially the section titled “Risk Factors” herein and therein together with the additional information described under the heading “Incorporation of Certain Documents by Reference” or incorporated by reference into this prospectus and any applicable prospectus supplement.

The prospectus supplement to be attached to the front of this prospectus will describe: the applicable public offering price, the price paid for the securities, the net proceeds, the manner of distribution and any underwriting compensation and the other specific material terms related to the offering of securities covered by this prospectus.

For more detail on the terms of the securities offered, see “Description of our Capital Stock” and “Description of Debt Securities.”

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FORWARD-LOOKING STATEMENTS

We have included in or incorporated by reference into this prospectus, and from time to time may make in our public filings, press releases or other public statements, certain statements that may constitute forward-looking statements. These include without limitation those under the headings “Macquarie Infrastructure Corporation” and “Risk Factors,” as well as other statements contained in this prospectus, any prospectus supplement or in any document incorporated by reference into this prospectus or any applicable prospectus supplement. In addition, our management may make forward-looking statements to analysts, investors, representatives of the media and others. These forward-looking statements are not historical facts and represent only our beliefs regarding future events, many of which, by their nature, are inherently uncertain and beyond our control. We may, in some cases, use words such as “project,” “believe,” “anticipate,” “plan,” “expect,” “estimate,” “intend,” “should,” “would,” “could,” “potentially,” “may” or other words that convey uncertainty of future events or outcomes to identify these forward-looking statements.

In connection with the “safe harbor” provisions of the Private Securities Litigation Reform Act of 1995, we are identifying important factors that, individually or in the aggregate, could cause actual results to differ materially from those contained in any forward-looking statements made by us. Any such forward-looking statements are qualified by reference to the following cautionary statements.

Forward-looking statements in this prospectus and any prospectus supplement (including any documents incorporated by reference herein or therein) are subject to a number of risks and uncertainties, some of which are beyond our control, including, among other things:

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Our actual results, performance, prospects or opportunities could differ materially from those expressed in or implied by the forward-looking statements. A description of risks that could cause our actual results to differ appears under the caption “Risk Factors” and elsewhere in this prospectus and any accompanying prospectus supplement and in the documents incorporated by reference into this prospectus and any accompanying prospectus supplement. It is not possible to predict or identify all risk factors and you should not consider that description to be a complete discussion of all potential risks or uncertainties that could cause our actual results to differ.

In light of these risks, uncertainties and assumptions, you should not place undue reliance on any forward-looking statements. The forward-looking events discussed in this prospectus or any accompanying prospectus supplement (including any documents incorporated by reference herein or therein) may not occur. These forward-looking statements are made as of the date of this prospectus. We undertake no obligation to publicly update or revise any forward-looking statements, whether as a result of new information, future events or otherwise, except as required by law. You should, however, consult further disclosures we may make in future filings with the SEC.

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WHERE YOU CAN FIND MORE INFORMATION

We are required to comply with the reporting requirements of the Securities Exchange Act of 1934, as amended, or the Exchange Act, and, in accordance with those requirements, we file annual, quarterly and current reports, proxy statements and other information with the SEC. You may read and copy any document we file at the SEC’s Public Reference Room at 100 F Street, N.E., Washington, D.C. 20549. Please call the SEC’s toll-free number at 1-800-SEC-0330 for further information about the Public Reference Room. Our SEC filings are also available to the public from the SEC’s website at www.sec.gov and can be found by searching the EDGAR archives on the website. In addition, our SEC filings and other information about us may also be obtained from our website at www.macquarie.com/mic , although information on our website does not constitute a part of this prospectus. Our common stock is listed on the NYSE under the symbol “MIC” and all reports, proxy statements and other information filed by us with the NYSE may be inspected at the NYSE’s offices at 20 Broad Street, New York, New York 10005.

We have filed a registration statement on Form S-3 to register with the SEC the securities covered by this prospectus. This prospectus is a part of the registration statement and does not contain all the information in the registration statement. Whenever a reference is made in this prospectus to a contract or other document, the reference is only a summary and you should refer to the exhibits that are a part of the registration statement or our other SEC filings for a copy of the contract or other document.

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MACQUARIE INFRASTRUCTURE CORPORATION

Macquarie Infrastructure Corporation, a Delaware corporation, is the successor to Macquarie Infrastructure Company LLC, or MIC LLC, pursuant to the conversion, or the conversion, of MIC LLC from a Delaware limited liability company into a Delaware corporation on May 21, 2015. MIC LLC was formed on April 13, 2004. Except as otherwise specified, all references in this prospectus to “MIC,” “our Company,” “we,” “us,” and “our” mean, Macquarie Infrastructure Corporation from and after the time of the conversion and MIC LLC, our predecessor, prior to the conversion, and, in each case, its subsidiaries included in our consolidated financial statements. Macquarie Infrastructure Management (USA) Inc., is part of the Macquarie Group, comprised of Macquarie Group Limited and its subsidiaries and affiliates worldwide.

MIC Level Strategy

Our corporate strategy is to own a diversified portfolio of businesses and grow stockholder dividends. We intend to achieve this by:

General

We own, operate and invest in a diversified group of businesses that provide services to other businesses, government agencies and individuals primarily in the United States. The businesses we own and operate include:

We buy, develop and invest in the growth of our businesses based on an assumption that we will own them indefinitely. It is neither our intent nor our expectation that we will divest of a business at a particular point in our ownership or as a result of having achieved certain targets, financial or otherwise. This view of ownership as a long-term relationship does not preclude sales of assets when we believe that we have either maximized the amount of value in the asset relative to our capability, or the asset is more highly valued by another owner. Since listing in December 2004, we have divested a total of approximately $360.0 million in assets including partial interests in several non-U.S. businesses, two businesses in the U.S. and several of the facilities owned and operated by our Atlantic Aviation business. In general, we have redeployed the proceeds of these asset sales in the development of our remaining businesses either through investment in growth projects or acquisitions of small, “bolt-on” operations consistent with our view of MIC as a long-term owner.

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Deployment of growth capital has been and is expected to continue to be an important part of our strategy and the creation of stockholder value. Our sources of growth capital include the capital generated by our businesses but not distributed as a cash dividend, capital generated through the issuance of additional debt and/or equity securities, or, as noted above, the proceeds of sales of certain assets.

Since 2006, we have owned and operated businesses in the four lines in which we operate today, having acquired a 50% interest in IMTT in May 2006 and Hawaii Gas in June of that year. Since then, and excluding the investment in the second half of IMTT and our initial investment in Bayonne Energy Center, we have deployed over $2.4 billion in the expansion or improvement of, or bolt-on acquisitions on behalf of our businesses. Over time, we would expect to deploy growth capital of around $250.0 million per year in a combination of projects potentially spanning all of our businesses and bolt-on type acquisitions of smaller operations on behalf of those businesses where we have or may pursue a “roll-up” type strategy.

Importantly, we are not obligated to invest in the growth of any one business or segment. If the opportunities in any of our businesses or segments are insufficient or the returns are inadequate relative to our financial targets, we will seek to drive stockholder value through other means. In the extreme that could mean that in some years we invest very little in growth and focus instead on operational improvement — driving top line increases and/or managing expenses (or the rate of growth in expenses) down. Further, although we find value in diversification and the uncorrelated nature of the businesses in our current portfolio, ideally we would prefer to have a portfolio of five or six lines of business as we had following our initial public offering. However, we do not intend to pursue diversification for the sake of diversification if the opportunities are insufficient in number or the expected returns are inadequate relative to our financial hurdles.

Businesses

Our businesses, in general, are defined by a combination of the following characteristics:

The different businesses that comprise our Company exhibit these above characteristics to different degrees at different times. For instance, GDP correlated businesses like Atlantic Aviation may exhibit more volatility during periods of economic downturn than businesses with substantially contracted revenue streams. While not every business that we own will meet all of the general criteria described above, we seek to own a diversified portfolio of businesses that possesses a balance of the characteristics described above.

In addition to the benefits associated with these characteristics, the revenues generated by most of our businesses generally can be expected to keep pace with historically normal rates of inflation. The price escalators built into many customer contracts, and the inflation and cost pass-through adjustments typically a part of pricing terms or provided for by the regulatory process to regulated businesses serve to insulate our businesses to a significant degree from the negative effects of inflation and commodity price risk. We sometimes employ hedging contracts in connection with our businesses’ floating rate debt and limited commodity price exposure.

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Our existing businesses can be categorized as follows:

Our Manager

We are managed externally by Macquarie Infrastructure Management (USA) Inc., our Manager. Our Manager is a member of the Macquarie Group, a diversified international provider of financial, advisory and investment services. The Macquarie Group is headquartered in Sydney, Australia and is a global leader in the management of infrastructure investment vehicles on behalf of third-party investors and advising on the acquisition, disposition and financing of infrastructure assets.

We have entered into a management services agreement, or the Management Services Agreement, with our Manager. Our Manager is responsible for our day-to-day operations and affairs and oversees the management teams of our operating businesses. Our Manager has assigned, or seconded, to us two of its employees to serve as our chief executive officer and chief financial officer and seconds or makes other personnel available as required. The services performed for us by our Manager are provided at our Manager’s expense, and include the compensation of our seconded personnel.

We pay our Manager a monthly base management fee based primarily on our market capitalization. Our Manager can also earn a performance fee if the quarterly total return for our stockholders (capital appreciation plus dividends) is positive and exceeds the quarterly total return of a U.S. utilities index benchmark, both in the quarter and cumulatively. If payable, the performance fee is equal to 20% of the difference between the benchmark return and the return for our stockholders. The current default election of settling both base management and performance fees is through the reinvestment of the fees in shares of our common stock. Our Manager’s election to invest its fees in shares of our common stock can only change during a 20 trading day window following our earnings release. Any change would apply to fees paid thereafter.

Principal Executive Offices

Our principal executive offices are located at 125 West 55 ^th Street, New York, NY 10019. Our telephone number at that location is (212) 231-1000. You may also obtain additional information about us from our website, www.macquarie.com/mic . Information on our website is not incorporated by reference into this prospectus or a part of this prospectus.

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Our Manager’s decision to reinvest its monthly base management fees and quarterly performance fees, as applicable, in common stock or retain the cash will affect stockholders differently.

Our Manager is paid a base management fee based on our market capitalization and potentially performance fees based on the total return generated on behalf of equity holders relative to a U.S. utilities index benchmark. Our Manager, in its sole discretion, may elect to retain base management fees and performance fees, if applicable, paid in cash or to reinvest such payments in additional common stock. In the event our Manager chooses not to reinvest the fees to which it is entitled in additional shares of common stock, the amount paid will reduce the cash that may otherwise be distributed as a dividend to all stockholders or used in our Company’s operations. In the event our Manager chooses to reinvest the fees to which it is entitled in additional common stock, effectively returning the cash to us, such reinvestment and the issuance of new shares of common stock will dilute existing stockholders by the increase in the percentage of common stock owned by our Manager. Either option may adversely impact the market for our common stock.

In addition, our Manager has typically elected to invest its fees in shares of our common stock, and, unless otherwise agreed with us, can only change this election during a 20-trading day window following our earnings release. Any change would apply to fees paid thereafter. Accordingly, stockholders would generally have notice of our Manager’s intent to receive fees in cash rather than reinvest before the change was effective.

Our Manager can resign with 90 days’ notice, or our CEO or CFO could be removed by our Manager, and we may not be able to find a suitable replacement within that time, resulting in a disruption in our operations, which could adversely affect our financial results and negatively impact the market price of our common stock.

Our Manager has the right, under the Management Services Agreement, to resign at any time with 90 days’ notice, whether we have found a replacement manager or not. In addition, our Manager could re-assign or remove the CEO and/or the CFO from their positions and responsibilities at our Company without our board of directors’ approval and with little or no notice. If our Manager resigns or our CEO/CFO are removed, we may not be able to find a new external manager or hire internal management with similar expertise within 90 days to provide the same or equivalent services on acceptable terms, or at all. If we are unable to do so quickly, our operations are likely to experience a disruption, our financial results could be adversely affected, perhaps materially, and the market price of our common stock may decline substantially. In addition, the coordination of our internal management, acquisition activities and supervision of our businesses are likely to suffer if we were unable to identify and reach an agreement with a single institution or group of executives having the expertise possessed by our Manager and its affiliates.

Furthermore, if our Manager resigns, we and our subsidiaries will be required to cease use of the Macquarie brand entirely, and change their names to remove any reference to “Macquarie.” This may cause the value of our Company and the market price of our common stock to decline.

Our externally managed model may not be viewed favorably by investors.

We are externally managed by a member of the Macquarie Group. Our Manager receives a fee for its services that provides for a number of corporate center functions including the compensation of our management team and those who provide services to us on a shared basis, health and welfare benefits, the

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provision of facilities, technology and insurance (other than directors and officers). The fee is based on our market capitalization and thus increases as we grow. The size of the fee may bear no direct correlation with the actual cost of providing the agreed upon services and may be higher than the cost of managing our Company internally. Per the terms of the Management Services Agreement with our Manager, the current default election for satisfying any base management or performance fees to which our Manager may be entitled is the issuance of additional shares of common stock. To the extent the fees continue to be satisfied by reinvestment in our common stock, all stockholders will be diluted and our hurdle for growing distributable cash on a per share basis will be higher.

Our Manager’s affiliation with Macquarie Group Limited and the Macquarie Group may result in conflicts of interest or a decline in the market price of our common stock.

Our Manager is an affiliate of Macquarie Group Limited and a member of the Macquarie Group. From time to time, we have entered into, and in the future we may enter into, transactions and relationships involving Macquarie Group Limited, its affiliates, or other members of the Macquarie Group. Such transactions have included and may include, among other things, the entry into debt facilities and derivative instruments with members of the Macquarie Group serving as lender or counterparty, and financial advisory or equity and debt underwriting services provided to us by the Macquarie Group.

Although our audit committee, all of the members of which are independent directors, is required to approve of any related party transactions, including those involving members of the Macquarie Group or its affiliates, the relationship of our Manager to the Macquarie Group may result in conflicts of interest.

In addition, as a result of our Manager’s being a member of the Macquarie Group, negative market perceptions of Macquarie Group Limited generally or of Macquarie’s infrastructure management model, or Macquarie Group statements or actions with respect to other managed vehicles, may affect market perceptions of us and cause a decline in the price of our common stock unrelated to our financial performance and prospects.

In the event of the underperformance of our Manager, we may be unable to remove our Manager, which could limit our ability to improve our performance and could adversely affect the market price of our common stock.

Under the terms of the Management Services Agreement, our Manager must significantly underperform in order for the Management Services Agreement to be terminated. Our board of directors cannot remove our Manager unless:

Our board of directors cannot remove our Manager unless the market performance of our common stock also significantly underperforms the benchmark index. If we were unable to remove our Manager in circumstances where the absolute market performance of our common stock does not meet expectations, the market price of our common stock could be negatively affected.

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Risks Related to Ownership of Our Common Stock

The performances of our businesses or our holding company structure may limit our ability to make regular dividends in the future to our stockholders because we are reliant upon the cash flows and distributions from our businesses.

Our Company is a holding company with no operations. Therefore, we are dependent upon the ability of our businesses to make distributions to our Company to enable it to meet its expenses, and to pay dividends to stockholders in the future. The ability of our operating subsidiaries and the businesses we own to make distributions to our Company is subject to limitations based on their operating performance, the terms of their debt agreements and the applicable laws of their respective jurisdictions. In addition, the ability of each business to reduce its outstanding debt will be similarly limited by its operating performance, as discussed in Part II, Item 7, “Management’s Discussion and Analysis of Financial Condition and Results of Operations” of our Annual Report on Form of 10-K for the year ended December 31, 2015.

The market price and marketability of our common stock may from time to time be significantly affected by numerous factors beyond our control, which may adversely affect our ability to raise capital through future equity financings.

The market price of our common stock may fluctuate significantly. Many factors that are beyond our control may significantly affect the market price and marketability of our common stock and may adversely affect our ability to raise capital through equity financings. These factors include, but are not limited to, the following:

We may issue preferred stock with rights, preferences and privileges that may be superior to the common stock, and these could have negative consequences for holders of our common stock.

We may issue shares of preferred stock in one or more financing transactions. We may also use the authorized preferred stock for funding transactions, including, among other things, acquisitions, strategic partnerships, joint ventures, restructurings, business combinations and investments, although we have no immediate plans to do so. We cannot provide assurances that any such transaction will be consummated on favorable terms or at all, that it will enhance stockholder value, or that it will not adversely affect our business or the trading price of our common stock. Any shares of preferred stock could be issued with rights, preferences and privileges that may be superior to those of our common stock. In addition, preferred stock could be issued for capital raising, financing and acquisition needs or opportunities that have the effect of making an acquisition of our Company more difficult or costly, as could also be the case if the board of directors were to issue additional common stock.

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Our reported Earnings per Share, or EPS, as defined under generally accepted accounting principles, or GAAP, does not reflect the cash generated by our businesses and may result in unfavorable comparisons with other businesses for which EPS is a useful component in valuation.

Our businesses own and invest in high-value, long-lived assets that generate large amounts of depreciation and amortization. Depreciation and amortization are non-cash expenses that serve to reduce reported EPS. We pay our Manager base management fees and may pay performance fees both of which may be reinvested in additional shares of our common stock thereby rendering them a non-cash expense. Whether the fees are settled in cash or reinvested in additional shares of our common stock, they have the effect of reducing EPS. As a result, our financial performance may appear to be substantially worse compared with businesses whose earnings do not reflect the effects of depreciation and amortization (or other non-cash items). To the extent that our results appear to be worse, we may have relatively greater difficulty attracting investors in our stock.

Our inability, under GAAP, to consolidate the financial results of certain of our investments may make it relatively more difficult to analyze the cash generating capacity of our combined businesses.

We may make investments in certain businesses which we will be required to account for using the equity method rather than consolidate with the results of our other businesses. The equity method requires us to include the portion of the net income, as determined in accordance with GAAP, equal to our equity interest in the business in our consolidated statement of operations. The physical asset backed nature of the businesses in which we invest (and the higher levels of non-cash expenses including depreciation and amortization) may mean that the performance of these investments have relatively little impact on our consolidated statement of operations even where they generate positive cash flow and this cash flow may not be reflected in the valuation of our common stock.

Our total assets include a substantial amount of goodwill and other intangible assets. The write-off of a significant portion of intangible assets would negatively affect our reported earnings.

Our total assets reflect a substantial amount of goodwill and other intangible assets. At December 31, 2015, goodwill and other intangible assets, net, represented approximately 40.0% of our total assets. Goodwill and other intangible assets were primarily recognized as a result of the acquisitions of our businesses. Other intangible assets consist primarily of airport operating rights, customer relationships and trade names. On at least an annual basis, we assess whether there has been any impairment in the value of goodwill and assess for impairment of other intangible assets when there are triggering events or circumstances. If the carrying value of the tested asset exceeds its estimated fair value, impairment is deemed to have occurred. In this event, the intangible is written down to fair value. Under current accounting rules, this would result in a charge to reported earnings. We have recognized significant impairments in the past, and any future determination requiring the write-off of a significant portion of goodwill or other intangible assets would negatively affect our reported earnings and total capitalization, and could be material.

Our total assets include a substantial amount of intangible assets and fixed assets. The depreciation and amortization of these assets may negatively impact our reported earnings.

The high level of intangible and physical assets written up to fair value upon acquisition of our businesses generates substantial amounts of depreciation and amortization. These non-cash items serve to lower net income as reported in our consolidated statement of operations as well as our taxable income. The generation of net losses or relatively small net income may contribute to a net operating loss, or NOL, carryforward that can be used to offset current taxable income in future periods. However, the continued reporting of little or negative net income may adversely affect the attractiveness of our Company among some potential investors and may reduce the market for our common stock.

Risks Related to Taxation

We have significant NOL carryforwards that may be fully utilized over the next several years thereby subjecting us to payment of substantial federal income taxes and reducing our distributable Free Cash Flow.

We may, without the acquisition of businesses with NOLs, incurring performance fees or implementation of other strategies that provide us with additional tax shield, fully utilize our existing NOLs before we

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anticipate or have previously indicated. At that point, we may be subject to federal income taxes in consolidation and any liability could be material. Any liability will reduce distributable Free Cash Flow and could prevent the growth or reduce the rate of growth of our dividends.

The current treatment of qualified dividend income and long-term capital gains under current U.S. federal income tax law may be adversely affected, changed or repealed in the future.

Under current law, qualified dividend income and long-term capital gains are taxed to non-corporate investors at a maximum U.S. federal income tax rate of 20%. In addition, certain holders that are individuals, estates or trusts are subject to 3.8% surtax on all or a portion of their “net investment income,” which may include all or a portion of their dividend income and net gains from the disposition of our common stock. This tax treatment may be adversely affected, changed or repealed by future changes in tax laws at any time, which may affect market perceptions of our Company and the market price of our common stock could be negatively affected.

Our ability to use our NOL carryforwards to offset future taxable income may be subject to certain limitations.

In general, under Section 382 of the Internal Revenue Code of 1986, as amended, or the Code, a corporation (or other entity taxable as a corporation, such as us) that undergoes an “ownership change” is subject to limitations on its ability to utilize its pre-change NOLs and certain other tax attributes to offset future taxable income. Generally speaking, an “ownership change” occurs if the aggregate percentage ownership of the stock of the corporation held by one or more “five-percent shareholders” (as defined in the Code) increases by more than fifty percentage points over such shareholders’ lowest percentage ownership during the testing period, which is generally the three year-period ending on the transaction date. If we undergo an ownership change, our ability to utilize NOLs and certain other tax attributes could be limited.

We have significant income tax NOLs, which may not be realized before they expire.

We had $426.2 million in U.S. federal NOL carryforwards at December 31, 2015. While we have concluded that all of the NOLs will more likely than not be realized, there can be no assurance that we will utilize the NOLs generated to date or any NOLs we might generate in the future. In addition, we have incurred state NOLs and have provided a valuation allowance against a portion of those. As with our U.S. federal NOLs, there is also no assurance that we will utilize those state losses or future losses that may be generated. Further, in recently enacted legislation the State of Louisiana has limited the use of NOL carryforwards. There can be no assurance that other states will not suspend or limit the use of NOL carryforwards or that Louisiana will not expand its limitations.

The treatment of depreciation and other tax deductions under current U.S. federal income tax law may be adversely affected, changed or repealed in the future.

Under current law, certain capital expenditures are eligible for accelerated depreciation, including 50% bonus depreciation for assets placed in service prior to December 31, 2017, for U.S. federal income tax purposes. In addition, certain other expenses are eligible to be deducted for U.S. federal income tax purposes. This tax treatment may be adversely affected, changed or repealed by future changes in tax laws at any time, which may affect market perceptions of us and the market price of our common stock could be negatively affected.

We are subject to changes in tax laws and changes in the interpretation of existing tax laws.

We are subject to various taxing regimes, including U.S. federal, state, local and foreign taxes such as income, excise, sales/use, payroll, franchise, property, gross receipts, withholding and ad valorem taxes. New tax laws and regulations and changes in existing tax laws and regulations or the interpretation thereof are continuously being enacted or proposed that could result in increased expenditures for tax liabilities in the future and could have a material adverse effect on our financial condition, results of operations, and liquidity.

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We are and our subsidiaries are subject to examinations and challenges by taxing authorities.

Periodic examinations or audits by taxing authorities could increase our tax liabilities and result in the imposition of interest and penalties. If challenges arising from such examinations and audits are not resolved in our favor, they could have a material adverse effect on our financial condition, results of operations, and liquidity.

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RATIO OF EARNINGS TO FIXED CHARGES

Set forth below is information concerning our ratio of earnings to fixed charges from continuing operations.

		Year Ended December 31,
		2015				2014				2013				2012				2011
Ratio of Earnings to Fixed Charges (1)			NM	(2)			11.99				1.84				2.13				1.39

(1)

Our ratio of earnings to fixed charges from continuing operations is computed by dividing (i) pre-tax income from continuing operations before equity in earnings and amortization charges of investees, plus amortization of capitalized interest, fixed charges and distribution received from equity investees classified as operating activities less interest capitalized; by (ii) fixed charges.

(2)

The ratio of earnings to fixed charges from continuing operations for the year ended December 31, 2015 is not meaningful as fixed charges exceeded adjusted earnings in such year. Earnings were deficient to cover fixed charges by $179.9 million in 2015.

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Other Rights.   Upon our liquidation, dissolution or winding up, all holders of common stock will be entitled to share equally, on a per share basis, in all of our assets of whatever kind available for distribution.

Trading.   Our common stock is listed on the NYSE under the symbol “MIC” in the same manner that limited liability company interests of MIC LLC were listed on the NYSE. Our transfer agent and registrar is Computershare, Inc.

Special Stock

Concurrently with our conversion from a corporation to a limited liability company, we issued to our Manager 100 shares of special stock. The sole purpose for the issuance of special stock to our Manager was to preserve our Manager’s previously-existing right to appoint one director to serve as the chairman of our board of directors, which right would otherwise have been lost upon consummation of the conversion.

Voting .  Each share of special stock is entitled to one vote on each matter to which holders of special stock are entitled to vote or provide consent.

Holders of special stock are not entitled to vote on or consent to any matter, except those matters explicitly set forth in the certificate of incorporation, which are as follows:

Election of One Director.   Under the certificate of incorporation, holders of special stock are entitled to elect one director, who will act as the chairman of the board of directors, at any time when the Management Services Agreement is in effect and our Manager or any of its affiliates holds at least 200,000 shares of common stock (as adjusted to reflect any subsequent equity splits or similar recapitalizations).

Dividends.   The certificate of incorporation provides that holders of special stock are not entitled to any dividends.

Transfer Restriction .  The certificate of incorporation provides that holders of special stock may not offer, sell, pledge, transfer, dispose or distribute shares of special stock or enter into any agreement with respect to the foregoing.

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Redemption.   Upon the earlier of (i) the termination of the Management Services Agreement or (ii) the date on which neither our Manager nor any of its affiliates holds at least 200,000 shares of common stock (as adjusted to reflect any subsequent equity splits or similar recapitalizations) (in either case, a “Redemption Event”), all outstanding shares of special stock will be redeemed by us at a price equal to $0.001 per share, within five business days after we become aware of the occurrence of a Redemption Event. If we do not have sufficient funds legally available to redeem all outstanding shares of special stock, we will redeem a pro rata portion of each holder’s redeemable shares out of any legally available funds and redeem the remaining shares as soon as practicable after we have funds legally available thereafter. Any shares of special stock which are redeemed or otherwise acquired by us or any of our subsidiaries will be automatically and immediately canceled and retired and will not be reissued, sold or transferred. Neither we nor any of our subsidiaries may exercise any voting or other rights granted to the holders of special stock following redemption.

Other Rights.   Holders of special stock are not entitled to share in any distribution of assets in the event of any liquidation, dissolution or winding up of our affairs.

Trading .  Our special stock is not listed on any stock exchange.

Preferred Stock

This section summarizes the general terms of the preferred stock that we may offer. The prospectus supplement relating to a particular series of preferred stock will describe the specific terms of that series, which may be in addition to or different from the general terms summarized in this section. The summaries in this section and the prospectus supplement do not describe every aspect of the preferred stock. If any particular terms of a series of preferred stock described in a prospectus supplement differ from any of the terms described in this prospectus, then the terms described in the applicable prospectus supplement will be deemed to supersede the terms described in this prospectus. When evaluating an offering of our preferred stock, you also should refer to all of the provisions of our certificate of incorporation, the applicable certificate of designation for the offered series of preferred stock and the DGCL. The applicable certificate of designation will be filed as an exhibit to or incorporated by reference in the registration statement of which this prospectus is a part.

Our board of directors is authorized to fix the designations, rights, preferences, powers and limitations of and to issue each series of the preferred stock. Our board of directors has flexibility to create one or more series of preferred stock, from time to time, and to determine the relative designations, powers, preferences and relative, participating, optional or other special rights, and the qualifications, limitations or restrictions of each series, and a prospectus supplement will describe the terms of any series of preferred stock being offered thereby, including, without limitation:

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The consent of our Manager, as holder of shares of special stock, is required for issuances of preferred stock.

Preferred stock may be issued, at the discretion of our board of directors, for any proper corporate purpose, without further action by our stockholders other than as may be required by applicable law. Stockholders do not have preemptive rights with respect to the future issuance of shares of preferred stock and stockholders’ interest in us could be diluted by any such issuance with respect to any of the following: earnings per share, voting, liquidation rights and book and market value.

The issuance of shares of preferred stock could affect the relative rights of holders of common stock. Depending upon the exact terms, limitations and relative rights and preferences, if any of the shares of preferred stock as determined by the board of directors at the time of issuance, the holders of shares of preferred stock may be entitled to a higher dividend rate than that paid on the common stock, a prior claim on funds available for the payment of dividends, a fixed preferential payment in the event of liquidation and dissolution, redemption rights, rights to convert their shares of preferred stock into shares of common stock, and voting rights which would tend to dilute the voting control of the holders of shares of common stock. We could use preferred stock for potential strategic transactions, including, among other things, acquisitions, strategic partnerships, joint ventures, restructurings, business combinations and investments. We cannot provide assurances that any such transactions will (i) be consummated on favorable terms or at all, (ii) enhance stockholder value or (iii) not adversely affect our business or the trading price of common stock. Any shares of preferred stock could be issued with rights, preferences and privileges that may be superior to those of the common stock.

Our board of directors has represented that it will not, without prior stockholder approval, approve the issuance or use of preferred stock for any defensive or anti-takeover purpose or for the purpose of implementing any stockholder rights plan. Within these limits, as well as others imposed by applicable law and NYSE rules, the board of directors may approve the issuance or use of preferred stock for capital raising, financing and acquisition needs or opportunities that has the effect of making an acquisition of our Company more difficult or costly, as could also be the case if the board of directors were to issue additional common stock.

Forum Selection Clause

Our bylaws provide that, unless we consent in writing to the selection of an alternative forum, to the fullest extent permitted by law, the sole and exclusive forum for any stockholder (including any beneficial owner) to bring (i) any derivative action or proceeding brought on our behalf, (ii) any action asserting a claim of breach of a fiduciary duty owed by any of our directors, officers, or employees to us or to our stockholders, (iii) any action asserting a claim arising pursuant to any provision of the DGCL or our certificate of incorporation or bylaws, (iv) any action to interpret, apply, enforce or determine the validity of our certificate of incorporation or bylaws or (v) any action asserting a claim governed by the internal affairs doctrine, will be the Court of Chancery of the State of Delaware. Any person or entity purchasing or otherwise acquiring or holding any interest in shares of our capital stock is deemed to have notice of and consented to the foregoing provisions.

Anti-Takeover Provisions

Certain provisions of the Management Services Agreement, our certificate of incorporation and our bylaws may make it more difficult for third parties to acquire control of us by various means. These provisions could deprive our stockholders of opportunities to realize a premium on the shares owned by them. In addition, these provisions may adversely affect the prevailing market price of the shares. These provisions are intended to:

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Anti-Takeover Effects of the Management Services Agreement

The limited circumstances in which our Manager may be terminated means that it will be very difficult for a potential acquirer to take over the management and operation of our business. Under the terms of the Management Services Agreement, our Manager may only be terminated by us in the following circumstances:

In addition to the limited circumstances in which our Manager can be terminated under the terms of the Management Services Agreement, the Management Services Agreement provides that in circumstances where our common stock ceases to be listed on a recognized U.S. national securities exchange as a result of the acquisition of our common stock by third parties in an amount that results in the common stock ceasing to meet the distribution and trading criteria on such exchange or market, our Manager has the option to either propose an alternate fee structure and remain our Manager or resign, terminate the Management Services Agreement upon 30 days’ written notice and be paid a substantial termination fee. The termination fee payable on our Manager’s exercise of its right to resign as our Manager subsequent to a delisting of our common stock could delay or prevent a change in control that may favor our stockholders. Furthermore, in the event of such a delisting, any proceeds from the sale, lease or exchange of a significant amount of assets must be reinvested in new assets of our Company, subject to debt repayment obligations. We will also be prohibited from incurring any new indebtedness or engaging in any transactions with our stockholders or our affiliates without the prior written approval of our Manager. These provisions could deprive our stockholders of opportunities to realize a premium on the shares owned by them.

Furthermore, upon resignation of our Manager and the termination of the Management Services Agreement, or within 30 days of a delisting of our shares of common stock unless otherwise agreed by our Manager, we and our subsidiaries will cease using the Macquarie brand entirely, including changing our names to remove any reference to “Macquarie.” Similarly, if our Manager’s appointment is terminated by us, we and our subsidiaries will cease using the Macquarie brand within 30 days of termination.

Anti-Takeover Provisions in the Certificate of Incorporation and Bylaws and Under Delaware Corporate Law

A number of provisions of our certificate of incorporation, bylaws and the DGCL also could have the effect of making it more difficult for a third party to acquire, or of discouraging a third party from acquiring, control of us.

Business Combinations.   The certificate of incorporation prohibits the merger or consolidation of us with or into any limited liability company, corporation, trust or any other unincorporated business or the sale, lease or exchange of all or substantially all of our assets unless the board of directors adopts a resolution by a majority vote approving such action and unless such action is approved by the affirmative vote of a majority

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of the outstanding shares entitled to vote thereon; provided, however, that any shares held by the Manager or an affiliate or associate of the Manager shall not be entitled to vote to approve any merger or consolidation with or into, or sale, lease or exchange to, the Manager or any affiliate or an associate thereof.

We are subject to the provisions of Section 203 of the DGCL.

Section 203 prohibits an “interested stockholder” from engaging in a “business combination” with a Delaware corporation for three years following the date such person became an interested stockholder, unless:

Section 203 defines a “business combination” to generally include:

Section 203 generally defines an “interested stockholder” as any entity or person beneficially owning 15% or more of the outstanding voting stock of the corporation and any entity or person affiliated with or controlling or controlled by such entity or person.

The certificate of incorporation provides that we shall not merge or consolidate with any other entity or sell, lease or exchange its property and assets, unless the board of directors adopts a resolution approving such action by the affirmative vote of at least a majority of the total number of directors then in office and an affirmative vote of the stockholders holding a majority of the voting power of our issued and outstanding shares of stock. Any shares held by the Manager or its affiliate or associate will not be entitled to vote on approval of any merger or consolidation with or into, or sale, lease or exchange to, the Manager or its affiliate or associate.

The certificate of incorporation also provides that the affirmative vote of at least 66 2/3% of our outstanding shares of stock (excluding shares held by an “interested stockholder” (as defined in the certificate of incorporation) or any of its affiliates or associate) is required to approve any “business combination” (as defined in the certificate of incorporation). Such affirmative vote is required notwithstanding any law or agreement with any securities exchange or otherwise. The “continuing directors” (as defined in the certificate of incorporation) will determine, on the basis of information known to them after reasonable inquiry, all facts necessary to determine compliance with the provisions relating to certain business combinations and transactions, including, without limitation, (a) whether a person is an interested stockholder, (b) the number of

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shares of our stock beneficially owned by any person, (c) whether a person is an affiliate or associate of another and (d) the “fair market value” (as defined in the certificate of incorporation) of our equity securities or any of our subsidiaries.

Vacancies; Acting by Written Consent.   Subject to the right of our Manager as holder of the special stock to elect one director and his or her successor in the event of a vacancy, the certificate of incorporation authorizes only our board of directors to fill vacancies, including for newly created directorships. This provision could prevent a stockholder of ours from effectively obtaining an indirect majority representation on our board of directors by permitting the existing board to increase the number of directors and to fill the vacancies with its own nominees.

Except as otherwise provided in the certificate of incorporation, holders of our shares are not permitted to act by written consent. Instead, stockholders may only take action via proxy, which may be presented at a duly called annual or special meeting of our stockholders. Furthermore, the certificate of incorporation provides that special meetings may only be called by the chairman of our board of directors or by resolution adopted by our board of directors.

Nomination and Proposal Procedures.   Our bylaws provide that stockholders seeking to bring business before an annual meeting of members or to nominate candidates for election as directors at an annual meeting of stockholders of our Company must provide notice thereof in writing to us not less than 120 days and not more than 150 days prior to the anniversary date of our preceding year’s annual meeting. In addition, the stockholder furnishing such notice must be a stockholder of record on both (1) the date of delivering such notice and (2) the record date for the determination of stockholders entitled to vote at such meeting. The bylaws specify certain requirements as to the form and content of a stockholder’s notice. These provisions may preclude stockholders from bringing matters before an annual meeting or from making nominations for directors at an annual or special meeting. To deliver timely notice of a nomination for a special meeting of stockholders, a stockholder must submit such written notice at least 120 days but not more than the later of the 90 ^th day prior to such special meeting or the 10 ^th day following the day on which public announcement is first made of the special meeting date and of the proposed nominees.

Future Issuances of Common Stock.   Authorized but unissued shares of common stock are available for future issuance, without approval of our stockholders. These additional shares may be utilized for a variety of purposes, including acquisitions, compensation and incentive plans and future public or private offerings to raise additional capital. One of the effects of the existence of such unissued shares may be to enable the board of directors to discourage or prevent a potential acquisition or takeover (by means of a tender or exchange offer, proxy contest or otherwise) and thereby to protect the continuity of the management.

Removal Procedures.   Our certificate of incorporation provides that any director may be removed for cause by the affirmative vote of the holders of at least 66 2/3% of the voting power of the issued and outstanding shares of common stock, special stock and preferred stock, if any, voting together as a single class. Any director elected by the holders of common stock, voting separately as a class, may be removed from office at any time, without cause, solely by the affirmative vote of at least 66 2/3% of the voting power of the issued and outstanding shares of common stock voting separately as a separate class. Any director elected by the holders of special stock, voting or consenting separately as a class, may be removed from office at any time, without cause, solely by the affirmative vote or written consent of the holders of at least 66 2/3% of the voting power of the issued and outstanding shares of special stock voting separately as a separate class.

Rights Plan.   Although we do not have a stockholder rights plan, under Delaware law, the board of directors could adopt such a plan without stockholder approval. If adopted, a stockholder rights plan could operate to cause substantial dilution to a person or group that attempts to acquire us on terms not approved by the board of directors.

Amendment of Certificate of Incorporation and Bylaws .  Our board of directors has broad authority, subject to the limitations described below, to amend the certificate of incorporation and bylaws. The board, with stockholder approval if required, could in the future choose to amend the certificate of incorporation or bylaws to include other provisions which have the intention or effect of discouraging takeover attempts. Under the DGCL, the certificate of incorporation may be amended by an affirmative vote of a majority of the

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directors then in office and a majority of the outstanding stock and entitled to vote thereon. The certificate of incorporation and the bylaws provide that the board of directors may amend the bylaws by resolution adopted by the affirmative vote of a majority of the total number of directors then in office, subject to limitations under Delaware law. Section 6.6 (Replacement manager) and Section 11.1 (Amendments) of the bylaws may not be amended without the affirmative vote of a majority of the voting power of the shares present in person or represented by proxy at a meeting of stockholders. For so long as the Management Services Agreement is in effect, Section 3.7 (Appointment of Chairman of the Board), Article VI (Management), and Article XI (Amendments) of the bylaws may not be amended without the prior written consent of our Manager.

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Prospectus Supplement

Each prospectus supplement will describe the terms relating to the specific series of debt securities being offered. These terms will include some or all of the following:

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Each prospectus supplement, if required, will describe the material U.S. federal income tax considerations associated with the purchase, ownership and disposition by U.S. holders and non-U.S. holders (in each case, as defined under the heading “Material U.S. Federal Income Tax Considerations”) relating to the specific series of debt securities offered.

Unless otherwise specified in a prospectus supplement, the debt securities will not be listed on any securities exchange and will be issued in fully-registered form without coupons.

Holders of the debt securities may present their securities for exchange and may present registered debt securities for transfer in the manner described in the applicable prospectus supplement. Except as limited by the applicable indenture, we will provide these services without charge, other than any tax or other governmental charge payable in connection with the exchange or transfer.

Debt securities may bear interest at a fixed rate or a variable rate, as specified in the prospectus supplement. In addition, if specified in the prospectus supplement, we may sell debt securities bearing no interest or interest at a rate that at the time of issuance is below the prevailing market rate, or at a discount below their stated principal amount. We will describe in the prospectus supplement any special U.S. federal income tax considerations applicable to these discounted debt securities.

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Subordination

The prospectus supplement relating to any offering of subordinated debt securities will describe the specific subordination provisions. However, unless otherwise noted in the prospectus supplement, subordinated debt securities will be subordinate and junior in right of payment to any existing or future senior debt of the company.

The terms of the subordination of a series of subordinated securities, together with the definition of senior debt related thereto, will be as set forth in the applicable supplemental indenture and the prospectus supplement relating to such series.

Our creditors who do not hold senior debt will not benefit from the subordination provisions described herein. In the event of our bankruptcy or insolvency before or after maturity of the subordinated securities, such other creditors would rank equally and ratably with holders of the subordinated securities, subject, however, to the broad equity powers of the Federal bankruptcy court pursuant to which such court may, among other things, reclassify the claims of any series of subordinated securities into a class of claims having a different relative priority with respect to the claims of such other creditors or any other claims against us.

Except to the extent otherwise set forth in a prospectus supplement, the indentures do not contain any restriction on the amount of senior debt which we may incur.

Restrictive Covenants

We will describe any restrictive covenants for any series of debt securities in the prospectus supplement and/or other offering material for each offering of such debt securities.

Consolidation, Merger, Sale of Assets and Other Transactions

Unless otherwise noted in a prospectus supplement, we will not merge with or into or consolidate with any other person or sell, assign, transfer or convey our properties and assets substantially as an entirety to any other person other than a direct or indirect wholly-owned subsidiary of ours, unless:

Events of Default, Notice and Waiver

Unless a prospectus supplement states otherwise, the following shall constitute events of default under the indentures with respect to each series of debt securities:

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If an event of default with respect to any debt securities of any series outstanding under either of the indentures shall occur and be continuing, the trustee under such indenture or the holders of at least 25% in aggregate principal amount of the debt securities of that series outstanding may declare, by notice as provided in the applicable indenture, the principal amount (or such lesser amount as may be provided for in the debt securities of that series) of all the debt securities of that series outstanding to be due and payable immediately; provided that, in the case of an event of default involving certain events in bankruptcy, insolvency or reorganization, acceleration is automatic; and, provided further, that after such acceleration, but before a judgment or decree based on acceleration, the holders of a majority in aggregate principal amount of the outstanding debt securities of that series may, under certain circumstances, rescind and annul such acceleration if all events of default, other than the nonpayment of accelerated principal, have been cured or waived. Upon the acceleration of the maturity of original issue discount securities, an amount less than the principal amount thereof will become due and payable. Reference is made to the prospectus supplement relating to any original issue discount securities for the particular provisions relating to acceleration of maturity thereof.

Any past default under either indenture with respect to debt securities of any series, and any event of default arising therefrom, may be waived by the holders of a majority in principal amount of all debt securities of such series outstanding under such indenture, except in the case of (1) default in the payment of the principal of (or premium, if any) or interest on any debt securities of such series or (2) default in respect of a covenant or provision which may not be amended or modified without the consent of the holder of each outstanding debt security of such series affected.

The trustee is required within 90 days after the occurrence of an event of default (which is known to the trustee and is continuing), with respect to the debt securities of any series (without regard to any grace period or notice requirements), to give to the holders of the debt securities of such series notice of such event of default.

The trustee, subject to its duties during an event of default to act with the required standard of care, may require indemnification satisfactory to the trustee by the holders of the debt securities of any series with respect to which an event of default has occurred before proceeding to exercise any right or power under the indentures at the request of the holders of the debt securities of such series. Subject to such right of indemnification and to certain other limitations, the holders of a majority in principal amount of the outstanding debt securities of any series under either indenture may direct the time, method and place of conducting any proceeding for any remedy available to the trustee, or exercising any trust or power conferred on the trustee with respect to the debt securities of such series, provided that such direction shall not be in conflict with any rule of law or with the applicable indenture and the trustee may take any other action deemed proper by the trustee which is not inconsistent with such direction.

No holder of a debt security of any series may institute any action against us under either of the indentures (except actions for payment of overdue principal of (and premium, if any) or interest on such debt security or for the conversion or exchange of such debt security in accordance with its terms) unless:

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We are required to furnish periodically to the trustee statements as to our compliance with all conditions and covenants under each indenture.

Discharge, Defeasance and Covenant Defeasance

We may discharge or defease our obligations under the indenture as set forth below, unless otherwise indicated in a prospectus supplement.

We may discharge certain obligations to holders of any series of debt securities issued under either the senior indenture or the subordinated indenture which have not already been delivered to the trustee for cancellation and which have either become due and payable or are by their terms due and payable within one year (or scheduled for redemption within one year) by irrevocably depositing with the trustee money in an amount sufficient to pay and discharge the entire indebtedness on such debt securities not previously delivered to the trustee for cancellation, for principal and any premium and interest to the date of such deposit (in the case of debt securities which have become due and payable) or to the stated maturity or redemption date, as the case may be, and we have paid all other sums payable under the applicable indenture.

If indicated in a prospectus supplement, we may elect either (1) to defease and be discharged from any and all obligations with respect to the debt securities of or within any series (except as otherwise provided in the relevant indenture) (referred to as defeasance) or (2) to be released from our obligations with respect to certain covenants applicable to the debt securities of or within any series (referred to as covenant defeasance), upon the deposit with the relevant indenture trustee, in trust for such purpose, of money and/or government obligations which through the payment of principal and interest in accordance with their terms will provide money in an amount sufficient (in the opinion of an independent registered accounting firm) to pay the principal of (and premium, if any) or interest on such debt securities to maturity or redemption, as the case may be, and any mandatory sinking fund or analogous payments thereon. As a condition to defeasance or covenant defeasance, we must deliver to the trustee an opinion of counsel to the effect that the holders of such debt securities will not recognize income, gain or loss for U.S. federal income tax purposes as a result of such defeasance or covenant defeasance and will be subject to U.S. federal income tax on the same amounts and in the same manner and at the same times as would have been the case if such defeasance or covenant defeasance had not occurred. Such opinion of counsel, in the case of defeasance under clause (1) above, must refer to and be based upon a ruling of the Internal Revenue Service, or IRS, or a change in applicable U.S. federal income tax law occurring after the date of the relevant indenture. In addition, in the case of either defeasance or covenant defeasance, we must deliver to the trustee an officers’ certificate and an opinion of counsel, each stating that all conditions precedent with respect to such defeasance or covenant defeasance have been complied with.

We may exercise our defeasance option with respect to such debt securities notwithstanding our prior exercise of our covenant defeasance option.

Modification and Waiver

Under the indentures, we and the applicable trustee may supplement the indentures for certain purposes without the consent of those holders. We and the applicable trustee may also modify the indentures or any supplemental indenture in a manner that affects the interests or rights of the holders of debt securities with the consent of the holders of at least a majority in aggregate principal amount of the outstanding debt securities of each affected series issued under the indenture. However, the indentures require the consent of each holder of debt securities that would be affected by any modification which would:

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The indentures permit the holders of at least a majority in aggregate principal amount of the outstanding debt securities of any series issued under the indentures which is affected by the modification or amendment to waive our compliance with certain covenants contained in the indentures.

Payment and Paying Agents

Unless otherwise indicated in the applicable prospectus supplement, payment of interest on a debt security on any interest payment date will be made to the person in whose name a debt security is registered at the close of business on the record date for the interest.

Unless otherwise indicated in the applicable prospectus supplement, principal, interest and premium on the debt securities of a particular series will be payable at the office of such paying agent or paying agents as we may designate for such purpose from time to time. Notwithstanding the foregoing, at our option, payment of any interest may be made by check mailed to the address of the person entitled thereto as such address appears in the security register.

Unless otherwise indicated in the applicable prospectus supplement, a paying agent designated by us will act as paying agent for payments with respect to debt securities of each series. All paying agents initially designated by us for the debt securities of a particular series will be named in the applicable prospectus supplement. We may at any time designate additional paying agents or rescind the designation of any paying agent or approve a change in the office through which any paying agent acts, except that we will be required to maintain a paying agent in each place of payment for the debt securities of a particular series.

All monies paid by us to a paying agent for the payment of the principal, interest or premium on any debt security which remain unclaimed at the end of two years after such principal, interest or premium has become due and payable will be repaid to us upon request, and the holder of such debt security shall thereafter, as an unsecured general creditor, look only to us for payment thereof.

Global Debt Securities

We may issue registered debt securities in global form. This means that one “global” debt security would be issued to represent a number of registered debt securities. The denomination of the global debt security would equal the aggregate principal amount of all registered debt securities represented by that global debt security.

We will deposit any registered debt securities issued in global form with a depositary, or with a nominee of the depositary, that we will name in the applicable prospectus supplement for each offering of such debt securities. Any person holding an interest in the global debt security through the depositary will be considered the “beneficial” owner of that interest. A “beneficial” owner of a security is able to enjoy rights associated with ownership of the security, even though the beneficial owner is not recognized as the legal owner of the

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security. The interest of the beneficial owner in the security is considered the “beneficial interest.” We will register the debt securities in the name of the depositary or the nominee of the depositary, as appropriate.

The depositary or its nominee may only transfer a global debt security in its entirety and only in the following circumstances:

These restrictions on transfer would not apply to a global debt security after the depositary or its nominee, as applicable, exchanged the global debt security for registered debt securities issued in definitive form.

We will describe the specific terms of the depositary arrangement with respect to any series of debt securities represented by a registered global security in the prospectus supplement for the offering of that series. We anticipate that the following provisions will apply to all depositary arrangements for debt securities represented by a registered global security.

Ownership of beneficial interests in a registered global security will be limited to (1) participants that have accounts with the depositary for the registered global security and (2) persons that may hold interests through those participants. Upon the issuance of a registered global security, the depositary will credit each participant’s account on the depositary’s book-entry registration and transfer system with the principal amount of debt securities represented by the registered global security beneficially owned by that participant. Initially, the dealers, underwriters or agents participating in the distribution of the debt securities will designate the accounts that the depositary should credit.

Ownership of beneficial interests in the registered global security will be shown on, and the transfer of ownership interests will be effected only through, records maintained by the depositary for the registered global security, with respect to interests of participants, and on the records of participants, with respect to interests of persons holding through participants. The laws of some states may require that purchasers of securities regulated by the laws of those states take physical delivery of the securities in definitive form. Those laws may impair the ability to own, transfer or pledge beneficial interests in registered global securities.

As long as the depositary for a registered global security, or its nominee, is the registered owner of the registered global security, that depositary or its nominee will be considered the sole owner or holder of the debt securities represented by the registered global security for all purposes under the applicable indenture. Owners of beneficial interests in a registered global security generally will not:

Accordingly, each person owning a beneficial interest in a registered global security must rely on the procedures of the depositary for the registered global security and, if that person owns through a participant, on the procedures of the participant through which that person owns its interest, to exercise any rights of a holder under the applicable indenture.

We understand that under existing industry practices, if we request any action of holders of debt securities or if an owner of a beneficial interest in a registered global security desires to give or take any action that a holder of debt securities is entitled to give or take under the applicable indenture, the depositary for the registered global security would authorize the participants holding the relevant beneficial interests to give or take the action, and the participants would authorize beneficial owners owning through the participants to give or take the action or would otherwise act upon the instructions of beneficial owners owning through them.

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We will make payments of principal, any premium and any interest on a registered global security to the depositary or its nominee. None of the company, the trustee or any other agent of the company or of the trustee will have any responsibility or liability for any aspect of the records relating to, or payments made on account of, beneficial ownership interests in the registered global security or for maintaining, supervising or reviewing any records relating to the beneficial ownership interests.

We expect that the depositary for any registered global security, upon receipt of any payment of principal (or premium, if any) or interest in respect of the registered global security, will immediately credit participants’ accounts with payments in amounts proportionate to their respective beneficial interests in the registered global security as shown on the records of the depositary.

We also expect that standing customer instructions and customary practices will govern payments by participants to owners of beneficial interests in the registered global security owned through the participants.

We will issue our debt securities in definitive form in exchange for a registered global security, if the depositary for such registered global security is at any time unwilling or unable to continue as depositary or ceases to be a clearing agency registered under the Exchange Act and if a successor depositary registered as a clearing agency under the Exchange Act is not appointed within 90 days and under such other circumstances, if any, as may be described in an applicable prospectus supplement. In addition, we may at any time and in our sole discretion determine not to have any of the debt securities of a series represented by a registered global security and, in such event, will issue debt securities of the series in definitive form in exchange for the registered global security.

We will register any debt securities issued in definitive form in exchange for a registered global security in such name or names as the depositary shall instruct the trustee. We expect that the depositary will base these instructions upon directions received by the depositary from participants with beneficial interests in the registered global security.

Governing Law

The indentures and the debt securities will be governed by, and construed in accordance with, the laws of the State of New York. The indentures are subject to the provisions of the Trust Indenture Act that are required to be part of the indenture and shall, to the extent applicable, be governed by such provisions.

Concerning the Trustee

We anticipate appointing Wells Fargo Bank, National Association, the trustee under the indentures, as the paying agent, registrar and custodian with regard to the debt securities. As of the date of this prospectus, the trustee and its affiliates and Macquarie Infrastructure Corporation and its affiliates may have various business relationships. In addition, as of the date of this prospectus, the trustee and its affiliates and the Macquarie Group and its affiliates, including the Manager, may have various business relationships. The trustee or its affiliates may in the future provide banking and other services to us and our subsidiaries, and to the Macquarie Group and its affiliates, including the Manager, in the ordinary course of their respective businesses.

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SELLING STOCKHOLDER

The Selling Stockholder is a member of the Macquarie Group, a diversified international provider of financial, advisory and investment services. The Macquarie Group is headquartered in Sydney, Australia and is a global leader in management of infrastructure investment vehicles on behalf of third-party investors and advising on the acquisition, disposition and financing of infrastructure assets. The Selling Stockholder may from time to time offer and sell pursuant to this prospectus any or all of the shares of common stock beneficially owned by it.

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PLAN OF DISTRIBUTION

Sales of our securities

We may sell the securities offered by us pursuant to this prospectus and any accompanying prospectus supplements separately or together:

We may sell the securities offered by us pursuant to this prospectus and any accompanying prospectus supplements to or through one or more underwriters or dealers or we may sell the securities to investors directly or through agents. Each prospectus supplement, to the extent applicable, will describe the number and terms of the securities to which such prospectus supplement relates, the name or names of any underwriters or agents with whom we have entered into arrangements with respect to the sale of such securities, the public offering or purchase price of such securities and the net proceeds we will receive from such sale. Any underwriter or agent involved in the offer and sale of the securities will be named in the applicable prospectus supplement. We may sell securities directly to investors on our own behalf in those jurisdictions where we are authorized to do so.

Underwriters may offer and sell the securities at a fixed price or prices, which may be changed from time to time, at market prices prevailing at the time of sale, at prices related to the prevailing market prices or at negotiated prices. We also may, from time to time, authorize dealers or agents to offer and sell these securities upon such terms and conditions as may be set forth in the applicable prospectus supplement. In connection with the sale of any of these securities, underwriters may receive compensation from us in the form of underwriting discounts or commissions and may also receive commissions from purchasers of the securities for whom they may act as agent. Underwriters may sell the securities to or through dealers, and such dealers may receive compensation in the form of discounts, concessions or commissions from the underwriters or commissions from the purchasers for which they may act as agents. The obligations of the underwriters to purchase securities will be subject to the conditions set forth in the applicable underwriting agreement.

Securities may also be sold in one or more of the following transactions: (a) block transactions (which may involve crosses) in which a broker-dealer may sell all or a portion of the securities as agent but may position and resell all or a portion of the block as principal to facilitate the transaction; (b) purchases by a broker-dealer as principal and resale by the broker-dealer for its own account pursuant to a prospectus supplement; (c) a special offering, an exchange distribution or a secondary distribution in accordance with applicable New York Stock Exchange or other stock exchange rules; (d) ordinary brokerage transactions and transactions in which a broker-dealer solicits purchasers; (e) sales “at the market” to or through one or more market makers or into an existing trading market, on an exchange or otherwise, for securities; and (f) sales in other ways not involving market makers or established trading markets, including direct sales to purchasers. Broker-dealers may also receive compensation from purchasers of the securities which is not expected to exceed that customary in the types of transactions involved.

In addition, the Selling Stockholder may sell common stock under this prospectus in any of these ways. The Selling Stockholder will act independently of us in making decisions with respect to the timing, manner and size of each sale. The Selling Stockholder may also sell shares of our common stock under Rule 144 under the Securities Act of 1933, as amended, or the Securities Act, if available, rather than under this prospectus.

We will set forth in a prospectus supplement the terms of the offering of securities, including:

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If we or the Selling Stockholder use underwriters for a sale of securities, the underwriters will acquire the securities for their own account. The underwriters may resell the securities in one or more transactions, including negotiated transactions, at a fixed public offering price or at varying prices determined at the time of sale. The obligations of the underwriters to purchase the securities will be subject to the conditions set forth in the applicable underwriting agreement. The underwriters will be obligated to purchase all the securities of the series offered if they purchase any of the securities of that series. We may use underwriters with whom we have a material relationship. We will describe in the prospectus supplement naming the underwriters the nature of any such relationship.

Underwriters, dealers or agents may receive compensation in the form of discounts, concessions or commissions from us, the Selling Stockholder or from our purchasers (as their agents in connection with the sale of securities). These underwriters, dealers or agents may be considered to be underwriters under the Securities Act. As a result, discounts, commissions or profits on resale received by the underwriters, dealers or agents may be treated as underwriting discounts and commissions. The prospectus supplement accompanying this prospectus will identify any such underwriter, dealer or agent, and describe any compensation received by them from us or the Selling Stockholder. Pursuant to a requirement by the Financial Industry Regulatory Authority, or FINRA, the maximum commission or discount to be received by a FINRA member or independent broker-dealer may not be greater than 8% of the gross proceeds received by the Selling Stockholder for the sale of any shares of common stock being registered pursuant to Rule 415 under the Security Act. Any initial public offering price and any discounts or concessions allowed or reallowed or paid to dealers may be changed from time to time. Unless otherwise indicated in a prospectus supplement, an agent will be acting on a best efforts basis and a dealer will purchase securities as a principal, and may then resell the securities at varying prices to be determined by the dealer.

Underwriters, dealers and agents may be entitled to indemnification by us or the Selling Stockholder against certain civil liabilities, including liabilities under the Securities Act, or to contribution with respect to payments made by the underwriters, dealers or agents, under agreements between us or the Selling Stockholder and the underwriters, dealers and agents.

We or the Selling Stockholder may grant underwriters who participate in the distribution of securities an option to purchase additional securities in connection with the distribution.

To facilitate the offering of securities, certain persons participating in the offering may engage in transactions that stabilize, maintain, or otherwise affect the price of the securities. This may include over-allotments or short sales of the securities, which involve the sale by persons participating in the offering of more securities than we or the Selling Stockholder sold to them. In these circumstances, these persons would cover such over-allotments or short positions by making purchases in the open market or by exercising their option, if any, to purchase additional securities. In addition, these persons may stabilize or maintain the price of the securities by bidding for or purchasing securities in the open market or by imposing penalty bids, whereby selling concessions allowed to dealers participating in the offering may be reclaimed if securities sold by them are repurchased in connection with stabilization transactions. The effect of these transactions may be to stabilize or maintain the market price of the securities at a level above that which might otherwise prevail in the open market. These transactions, if commenced, may be discontinued at any time.

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The Selling Stockholder and any other person participating in a distribution of the securities covered by this prospectus will be subject to the applicable provisions of the Exchange Act and the rules and regulations thereunder. Regulation M of the Exchange Act may limit the timing of purchases and sales of securities by the Selling Stockholder and any other person. In addition, Regulation M may restrict the ability of any person engaged in the distribution of the securities to engage in market-making activities with respect to our securities for a period of up to five business days before the distribution.

In the ordinary course of business activities, any underwriters and their affiliates may make or hold a broad array of investments and actively trade debt and equity securities (or related derivative securities) and financial instruments (including bank loans) for their own account and for the account of their customers and may at any time hold long and short positions in such securities and instruments. Such instruments may involve securities and instruments of the Company.

LEGAL MATTERS

Certain legal matters in connection with the securities offered hereby will be passed upon for us by White & Case LLP, New York, New York.

EXPERTS

The consolidated financial statements of Macquarie Infrastructure Corporation and subsidiaries as of December 31, 2015 and 2014 and for each of the years in the three year period ended December 31, 2015, and management’s assessment of the effectiveness of internal control over financial reporting as of December 31, 2015 have been incorporated by reference herein and in the registration statement in reliance upon the reports of KPMG LLP, independent registered public accounting firm, incorporated by reference herein, and upon the authority of said firm as experts in accounting and auditing.

The audit report, dated February 22, 2016, on the effectiveness of the internal control over financial reporting as of December 31, 2015 contains an explanatory paragraph that states Macquarie Infrastructure Corporation acquired Bayonne Energy Center during 2015, and management excluded from its assessment of the effectiveness of Macquarie Infrastructure Corporation’s internal control over financial reporting as of December 31, 2015, Bayonne Energy Center’s internal control over financial reporting associated with approximately 10% of total assets and approximately 5% of total revenues included in the consolidated financial statements of Macquarie Infrastructure Corporation as of and for the year ended December 31, 2015. Our audit of internal control over financial reporting of Macquarie Infrastructure Corporation also excluded an evaluation of the internal control over financial reporting of Bayonne Energy Center.