Document:

EX-4.4

 Exhibit 4.4 

WARRANT AGREEMENT 

between 
 IRON HORSE
ACQUISITION CORP. 
 and 

CONTINENTAL STOCK TRANSFER & TRUST COMPANY 

THIS WARRANT AGREEMENT (this “Agreement”), dated as of [●], 2018, is by and between Iron Horse Acquisition
Corp., a Cayman Islands exempted company (the “Company”), and Continental Stock Transfer & Trust Company, a New York corporation, as warrant agent (the “Warrant Agent”, also referred to herein
as the “Transfer Agent”). 
 WHEREAS, on [●], 2018, the Company entered into that certain Private Placement
Warrants Purchase Agreement with Cerberus Iron Horse Holdings, LLC, a Delaware limited liability company (the “Sponsor”), pursuant to which the Sponsor will purchase an aggregate of 8,000,000 warrants (or up to 9,200,000
warrants if the Over-allotment Option (as defined below) in connection with the Offering (as defined below) is exercised in full) simultaneously with the closing of the Offering bearing the legend set forth in Exhibit B hereto (the
“Private Placement Warrants”) at a purchase price of $1.50 per Private Placement Warrant; and 
 WHEREAS, the
Company has entered into a Co-Investment Agreement with the Sponsor and Cerberus Capital Management, L.P. (“CCM”) pursuant to which CCM will have the right to subscribe for warrants
bearing the legend set forth on Exhibit B hereto (the “Co-Investment Warrants”) in a private placement transaction to occur at or prior to the time of the Company’s initial
Business Combination (as defined below); and 
 WHEREAS, the Company is engaged in an initial public offering (the
“Offering”) of units of the Company’s equity securities, each such unit comprised of one Class A ordinary share (as defined below) and one-third of one Public Warrant (as
defined below) (the “Units”) and, in connection therewith, has determined to issue and deliver up to 19,166,667 warrants (including up to 2,500,000 warrants subject to the Over-allotment Option) to public investors in the
Offering (the “Public Warrants” and, together with the Private Placement Warrants and the Co-Investment Warrants, the “Warrants”). Each whole Warrant entitles
the holder thereof to purchase one Class A ordinary share of the Company, par value $0.0001 per share (“Ordinary Shares”), for $11.50 per share, subject to adjustment as described herein; and 

WHEREAS, the Company has filed with the Securities and Exchange Commission (the “Commission”) a registration statement
on Form S-1, File No. 333-222446 (the “Registration Statement”) and prospectus (the “Prospectus”), for the
registration, under the Securities Act of 1933, as amended (the “Securities Act”), of the Units, the Public Warrants and the Ordinary Shares included in the Units; and 

WHEREAS, the Company desires the Warrant Agent to act on behalf of the Company, and the Warrant Agent is willing to so act, in connection with
the issuance, registration, transfer, exchange, redemption and exercise of the Warrants; and 

  

 WHEREAS, the Company desires to provide for the form and provisions of the Warrants, the terms
upon which they shall be issued and exercised, and the respective rights, limitation of rights, and immunities of the Company, the Warrant Agent, and the holders of the Warrants; and 

WHEREAS, all acts and things have been done and performed which are necessary to make the Warrants, when executed on behalf of the Company and
countersigned by or on behalf of the Warrant Agent, as provided herein, the valid, binding and legal obligations of the Company, and to authorize the execution and delivery of this Agreement. 

NOW, THEREFORE, in consideration of the mutual agreements herein contained, the parties hereto agree as follows: 

 

	1	Appointment of Warrant Agent. The Company hereby appoints the Warrant Agent to act as agent for the Company for the Warrants, and the Warrant Agent hereby accepts such appointment and agrees to perform the same
in accordance with the terms and conditions set forth in this Agreement. 

  

	2	Warrants. 

  

	2.1	Form of Warrant. Each Warrant shall be issued in registered form only, unless physical certificates are issued in the sole discretion of the Company. 

 

	2.2	Effect of Countersignature. If a physical certificate is issued, unless and until countersigned by the Warrant Agent pursuant to this Agreement, a Warrant shall be invalid and of no effect and may not be
exercised by the holder thereof. 

  

	2.3	Registration. 

  

	2.3.1	Warrant Register. The Warrant Agent shall maintain books (the “Warrant Register”), for the registration of original issuance and the registration of transfer of the Warrants. Upon the
initial issuance of the Warrants, the Warrant Agent shall issue and register the Warrants in the names of the respective holders thereof in such denominations and otherwise in accordance with instructions delivered to the Warrant Agent by the
Company. Ownership of beneficial interests in the Public Warrants shall be shown on, and the transfer of such ownership shall be effected through, records maintained by institutions that have accounts with the Depository Trust Company (the
“Depositary”) (such institution, with respect to a Warrant in its account, a “Participant”). 

If the Depositary subsequently ceases to make its book-entry settlement system available for the Public Warrants, the Company may instruct the
Warrant Agent regarding making other arrangements for book-entry settlement. In the event that the Public Warrants are not eligible for, or it is no longer necessary to have the Public Warrants available in, book-entry form, the Warrant Agent shall
provide written instructions to the Depositary to deliver to the Warrant Agent for cancellation each book-entry Public Warrant, and the Company shall instruct the Warrant Agent to deliver to the Depositary definitive certificates in physical form
evidencing such Warrants which shall be in the form annexed hereto as Exhibit A. 

  
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 Physical certificates, if issued, shall be signed by, or bear the facsimile signature of, the
Chairman of the Board, Chief Executive Officer, Chief Financial Officer, Secretary or other principal officer of the Company. In the event the person whose facsimile signature has been placed upon any Warrant shall have ceased to serve in the
capacity in which such person signed the Warrant before such Warrant is issued, it may be issued with the same effect as if he or she had not ceased to be such at the date of issuance. 

 

	2.3.2	Registered Holder. Prior to due presentment for registration of transfer of any Warrant, the Company and the Warrant Agent may deem and treat the person in whose name such Warrant is registered in the Warrant
Register (the “Registered Holder”) as the absolute owner of such Warrant and of each Warrant represented thereby (notwithstanding any notation of ownership or other writing on any physical certificate made by anyone other
than the Company or the Warrant Agent), for the purpose of any exercise thereof, and for all other purposes, and neither the Company nor the Warrant Agent shall be affected by any notice to the contrary. 

 

	2.4	Detachability of Warrants. The Ordinary Shares and Public Warrants comprising the Units shall begin separate trading on the 52nd day following the date of the Prospectus or, if such 52nd day is not on a day,
other than a Saturday, Sunday or federal holiday, on which banks in New York City are generally open for normal business (a “Business Day”), then on the immediately succeeding Business Day following such date, or earlier (the
“Detachment Date”) with the consent of Citigroup Global Markets Inc. and Goldman Sachs & Co. LLC, as representatives of the several underwriters, but in no event shall the Ordinary Shares and the Public Warrants
comprising the Units be separately traded until (A) the Company has filed a current report on Form 8-K with the Commission containing an audited balance sheet reflecting the receipt by the Company of the
gross proceeds of the Offering, including the proceeds received by the Company from the exercise by the underwriters of their option to purchase additional Units in the Offering to cover over-allotments, if any (the “Over-allotment
Option”), if the Over-allotment Option is exercised prior to the filing of the Form 8-K, and (B) the Company issues a press release and files with the Commission a current report on Form 8-K announcing when such separate trading shall begin. After the consummation of an initial Business Combination, all Warrants will automatically begin separate trading. 

 

	2.5	No Fractional Warrants Other Than as Part of Units. The Company shall not issue fractional Warrants other than as part of Units, each of which is comprised of one Ordinary Share and
one-third of one Public Warrant. If, upon the detachment of Public Warrants from Units or otherwise, a holder of Warrants would be entitled to receive a fractional Warrant, the Company shall round down to the
nearest whole number the number of Warrants to be issued to such holder. 

  

	2.6	Private Placement Warrants; Co-Investment Warrants. 

  

	2.6.1	 The Private Placement Warrants shall be identical to the Public Warrants, except that so long as they are held by
the Sponsor or any of its Permitted Transferees (as defined below) the Private Placement Warrants: (i) may be exercised for cash or on a cashless basis, pursuant to subsection 3.3.1(c) hereof, (ii) may not be transferred, assigned
or sold 

  
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until thirty (30) days after the completion by the Company of an initial Business Combination, and (iii) shall not be redeemable by the Company; provided, however, that in
the case of (ii), the Private Placement Warrants and any Ordinary Shares held by the Sponsor or any of its Permitted Transferees and issued upon exercise of the Private Placement Warrants may be transferred by the holders thereof: 

 

	 	(a)	as a gift to such person’s immediate family or to a trust, the beneficiary of which is a member of such person’s immediate family, an affiliate of such person or to a charitable organization;

  

	 	(b)	to the Company’s officers or directors, any affiliates or family members of any of the Company’s officers or directors, any members of the Sponsor or their affiliates, or any affiliates of the Sponsor, or
employees of or partners in Cerberus Capital Management, L.P. or any entities affiliated therewith, including by means of a forfeiture to the Company and a reissuance to such transferee; 

 

	 	(c)	by virtue of the laws of descent and distribution upon death of such person; 

  

	 	(d)	pursuant to a qualified domestic relations order; 

  

	 	(e)	by virtue of the laws of the state of Delaware or the Sponsor’s limited liability company agreement upon dissolution of the Sponsor; 

 

	 	(f)	through private sales or transfers made in connection with the consummation of the Company’s initial Business Combination at prices no greater than the price at which the Warrants were originally purchased;

  

	 	(g)	to the Company for no value for cancellation in the event of the Company’s liquidation prior to consummation of the Company’s initial Business Combination; or 

 

	 	(h)	in the event that, subsequent to the consummation of the Company’s initial Business Combination, the Company consummates a merger, capital share exchange, reorganization or other similar transaction that results in
all of the holders of the Company’s equity securities issued in the Offering having the right to exchange their Ordinary Shares for cash, securities or other property; 

provided, however, that, in the case of clauses (a) through (f), these transferees (the “Permitted Transferees”)
enter into a written agreement with the Company agreeing to be bound by the transfer restrictions in this Agreement. 
  

	2.6.2	The Co-Investment Warrants shall have the same terms and be in the same form as the Public Warrants. 

 

	3	Terms and Exercise of Warrants. 

  
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	3.1	Warrant Price. Each Warrant shall, when countersigned by the Warrant Agent, entitle the Registered Holder thereof, subject to the provisions of such Warrant and of this Agreement, to purchase from the Company the
number of Ordinary Shares stated therein, at the price of $11.50 per share, subject to the adjustments provided in Section 4 hereof and in the last sentence of this Section 3.1. The term
“Warrant Price” as used in this Agreement shall mean the price per share at which Ordinary Shares may be purchased at the time a Warrant is exercised. The Company in its sole discretion may lower the Warrant Price at any time prior to the
Expiration Date (as defined below) for a period of not less than twenty (20) Business Days, provided, that the Company shall provide at least twenty (20) days prior written notice of such reduction to Registered Holders of the Warrants
and, provided further that any such reduction shall be identical among all of the Warrants. 

  

	3.2	Duration of Warrants. A Warrant may be exercised only during the period (the “Exercise Period”) commencing on the later of: (i) the date that is thirty (30) days after the first
date on which the Company completes a merger, capital share exchange, asset acquisition, share purchase, reorganization or similar business combination, involving the Company and one or more businesses (a “Business
Combination”), or (ii) the date that is twelve (12) months from the date of the closing of the Offering, and terminating at 5:00 p.m., New York City time on the earlier to occur of: (x) the date that is five
(5) years after the date on which the Company completes its Business Combination, (y) the liquidation of the Company in accordance with the Company’s amended and restated memorandum and articles of association as amended from time to
time, if the Company fails to complete a Business Combination, or (z) other than with respect to the Private Placement Warrants, the Redemption Date (as defined below) as provided in Section 6.2 hereof (the
“Expiration Date”); provided, however, that the exercise of any Warrant shall be subject to the satisfaction of any applicable conditions, as set forth in subsection 3.3.2 below with respect to an
effective registration statement. Except with respect to the right to receive the Redemption Price (as defined below) (other than with respect to a Private Placement Warrant) in the event of a redemption (as set forth in
Section 6 hereof), each Warrant (other than a Private Placement Warrant in the event of a redemption) not exercised on or before the Expiration Date shall become void, and all rights thereunder and all rights in respect
thereof under this Agreement shall cease at 5:00 p.m. New York City time on the Expiration Date. The Company in its sole discretion may extend the duration of the Warrants by delaying the Expiration Date; provided, that the Company shall
provide at least twenty (20) days prior written notice of any such extension to Registered Holders of the Warrants and, provided further that any such extension shall be identical in duration among all the Warrants. 

 

	3.3	Exercise of Warrants. 

  

	3.3.1	Payment. Subject to the provisions of the Warrant and this Agreement, a Warrant, when countersigned by the Warrant Agent, may be exercised by the Registered Holder thereof by surrendering it, at the office of the
Warrant Agent, or at the office of its successor as Warrant Agent, in the Borough of Manhattan, City and State of New York, with the subscription form, as set forth in the Warrant, duly executed, and by paying in full the Warrant Price for each full
Ordinary Share as to which the Warrant is exercised and any and all applicable taxes due in connection with the exercise of the Warrant, the exchange of the Warrant for the Ordinary Shares and the issuance of such Ordinary Shares, as follows:

  

	 	(a)	in lawful money of the United States, in good certified check or good bank draft payable to the Warrant Agent; 

  
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	 	(b)	in the event of a redemption pursuant to Section 6 hereof in which the Company’s board of directors (the “Board”) has elected to require all holders of the Warrants
to exercise such Warrants on a “cashless basis,” by surrendering the Warrants for that number of Ordinary Shares equal to the quotient obtained by dividing (x) the product of the number of Ordinary Shares underlying the Warrants,
multiplied by the difference between the Warrant Price and the “Fair Market Value”, as defined in this subsection 3.3.1(b) by (y) the Fair Market Value. Solely for purposes of this subsection 3.3.1(b) and
Section 6.3, the “Fair Market Value” shall mean the average last sale price of the Ordinary Shares for the ten (10) trading days ending on the third trading day prior to the date on which the notice of
redemption is sent to the holders of the Warrants, pursuant to Section 6 hereof; 

  

	 	(c)	with respect to any Private Placement Warrant, so long as such Private Placement Warrant is held by the Sponsor or a Permitted Transferee, by surrendering the Warrants for that number of Ordinary Shares equal to the
quotient obtained by dividing (x) the product of the number of Ordinary Shares underlying the Warrants, multiplied by the difference between the Warrant Price and the “Fair Market Value”, as defined in this subsection 3.3.1(c),
by (y) the Fair Market Value. Solely for purposes of this subsection 3.3.1(c), the “Fair Market Value” shall mean the average last sale price of the Ordinary Shares for the ten (10) trading days ending on the third trading
day prior to the date on which notice of exercise of the Warrant is sent to the Warrant Agent; or 

  

	 	(d)	as provided in Section 7.4 hereof. 

  

	3.3.2	 Issuance of Ordinary Shares on Exercise. As soon as practicable after the exercise of any Warrant and the
clearance of the funds in payment of the Warrant Price (if payment is pursuant to subsection 3.3.1(a)), the Company shall issue to the Registered Holder of such Warrant a book-entry position or certificate, as applicable, for the number of
full Ordinary Shares to which he, she or it is entitled, registered in such name or names as may be directed by him, her or it, and if such Warrant shall not have been exercised in full, a new book-entry position or countersigned Warrant, as
applicable, for the number of Ordinary Shares as to which such Warrant shall not have been exercised. Notwithstanding the foregoing, the Company shall not be obligated to deliver any Ordinary Shares pursuant to the exercise of a Warrant and shall
have no obligation to settle such Warrant exercise unless a registration statement under the Securities Act with respect to the Ordinary Shares underlying the Public Warrants is then effective and a prospectus relating thereto is current, subject to
the Company’s satisfying its obligations under Section 7.4. No Warrant shall be exercisable and the Company shall not be obligated to issue Ordinary Shares upon exercise of a Warrant unless the Ordinary Shares issuable
upon such Warrant exercise has been registered, qualified or deemed to be 

  
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exempt under the securities laws of the state of residence of the Registered Holder of the Warrants. In the event that the conditions in the two immediately preceding sentences are not satisfied
with respect to a Warrant, the holder of such Warrant shall not be entitled to exercise such Warrant and such Warrant may have no value and expire worthless, in which case the purchaser of a Unit containing such Public Warrants shall have paid the
full purchase price for the Unit solely for the Ordinary Shares underlying such Unit. In no event will the Company be required to net cash settle the Warrant exercise. The Company may require holders of Public Warrants to settle the Warrant on a
“cashless basis” pursuant to Section 7.4. If, by reason of any exercise of warrants on a “cashless basis”, the holder of any Warrant would be entitled, upon the exercise of such Warrant, to receive a
fractional interest in a share, the Company shall round down to the nearest whole number, the number of Ordinary Shares to be issued to such holder. 

  

	3.3.3	Valid Issuance. All Ordinary Shares issued upon the proper exercise of a Warrant in conformity with this Agreement shall be validly issued, fully paid and non-assessable.

  

	3.3.4	Date of Issuance. Each person in whose name any book-entry position or certificate, as applicable, for Ordinary Shares is issued shall for all purposes be deemed to have become the holder of record of such
Ordinary Shares on the date on which the Warrant, or book-entry position representing such Warrant, was surrendered and payment of the Warrant Price was made, irrespective of the date of delivery of such certificate in the case of a certificated
Warrant, except that, if the date of such surrender and payment is a date when the share transfer books of the Company or book-entry system of the Warrant Agent are closed, such person shall be deemed to have become the holder of such Ordinary
Shares at the close of business on the next succeeding date on which the share transfer books or book-entry system are open. 

  

	3.3.5	 Maximum Percentage. A holder of a Warrant may notify the Company in writing in the event it elects to be
subject to the provisions contained in this subsection 3.3.5; however, no holder of a Warrant shall be subject to this subsection 3.3.5 unless he, she or it makes such election. If the election is made by a holder, the Warrant
Agent shall not effect the exercise of the holder’s Warrant, and such holder shall not have the right to exercise such Warrant, to the extent that after giving effect to such exercise, such person (together with such person’s affiliates),
to the Warrant Agent’s actual knowledge, would beneficially own in excess of 9.8% (the “Maximum Percentage”) of the Ordinary Shares outstanding immediately after giving effect to such exercise. For purposes of the
foregoing sentence, the aggregate number of Ordinary Shares beneficially owned by such person and its affiliates shall include the number of Ordinary Shares issuable upon exercise of the Warrant with respect to which the determination of such
sentence is being made, but shall exclude Ordinary Shares that would be issuable upon (x) exercise of the remaining, unexercised portion of the Warrant beneficially owned by such person and its affiliates and (y) exercise or conversion of
the unexercised or unconverted portion of any other securities of the Company beneficially owned by such person and its affiliates (including, without limitation, any convertible notes or convertible preferred shares or warrants) subject to a
limitation on conversion or exercise analogous to the limitation contained herein. Except as set forth in the preceding sentence, for purposes of this paragraph, beneficial ownership shall be calculated in accordance with Section 13(d) of the

  
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Securities Exchange Act of 1934, as amended (the “Exchange Act”). For purposes of the Warrant, in determining the number of outstanding Ordinary Shares, the holder may
rely on the number of outstanding Ordinary Shares as reflected in (1) the Company’s most recent annual report on Form 10-K, quarterly report on Form 10-Q,
current report on Form 8-K or other public filing with the Commission as the case may be, (2) a more recent public announcement by the Company or (3) any other notice by the Company or the Transfer
Agent setting forth the number of Ordinary Shares outstanding. For any reason at any time, upon the written request of the holder of the Warrant, the Company shall, within two (2) Business Days, confirm orally and in writing to such holder the
number of Ordinary Shares then outstanding. In any case, the number of outstanding Ordinary Shares shall be determined after giving effect to the conversion or exercise of equity securities of the Company by the holder and its affiliates since the
date as of which such number of outstanding Ordinary Shares was reported. By written notice to the Company, the holder of a Warrant may from time to time increase or decrease the Maximum Percentage applicable to such holder to any other percentage
specified in such notice; provided, however, that any such increase shall not be effective until the sixty-first (61st) day after such notice is delivered to the Company. 

 

	4	Adjustments. 

  

	4.1	Share Dividends. 

  

	4.1.1	Split-Ups. If after the date hereof, and subject to the provisions of Section 4.6 below, the number of outstanding Ordinary Shares is increased by
a share dividend payable in Ordinary Shares, or by a split-up of Ordinary Shares or other similar event, then, on the effective date of such share dividend, split-up or
similar event, the number of Ordinary Shares issuable on exercise of each Warrant shall be increased in proportion to such increase in the outstanding Ordinary Shares. A rights offering to holders of the Ordinary Shares entitling holders to purchase
Ordinary Shares at a price less than the “Fair Market Value” (as defined below) shall be deemed a share dividend of a number of Ordinary Shares equal to the product of (i) the number of Ordinary Shares actually sold in such rights
offering (or issuable under any other equity securities sold in such rights offering that are convertible into or exercisable for the Ordinary Shares) multiplied by (ii) one (1) minus the quotient of (x) the price per Ordinary Share paid
in such rights offering divided by (y) the Fair Market Value. For purposes of this subsection 4.1.1, (i) if the rights offering is for securities convertible into or exercisable for Ordinary Shares, in determining the price payable for
Ordinary Shares, there shall be taken into account any consideration received for such rights, as well as any additional amount payable upon exercise or conversion and (ii) “Fair Market Value” means the volume weighted average price of the
Ordinary Shares as reported during the ten (10) trading day period ending on the trading day prior to the first date on which the Ordinary Shares trade on the applicable exchange or in the applicable market, regular way, without the right to
receive such rights. 

  
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	4.1.2	Extraordinary Dividends. If the Company, at any time while the Warrants are outstanding and unexpired, shall pay a dividend or make a distribution in cash, securities or other assets to the holders of the
Ordinary Shares on account of such Ordinary Shares (or other shares of the Company’s capital stock into which the Warrants are convertible), other than (a) as described in subsection 4.1.1 above, (b) Ordinary Cash Dividends (as
defined below), (c) to satisfy the redemption rights of the holders of the Ordinary Shares in connection with a proposed initial Business Combination, (d) to satisfy the redemption rights of the holders of Ordinary Shares in connection with a
shareholder vote to amend the Company’s amended and restated memorandum and articles of association to modify the substance or timing of the Company’s obligation to redeem 100% of Ordinary Shares if the Company does not complete the
Business Combination within 24 months from the closing of the Offering, or (e) in connection with the redemption of public shares upon the failure of the Company to complete its initial Business Combination and any subsequent distribution of
its assets upon its liquidation (any such non-excluded event being referred to herein as an “Extraordinary Dividend”), then the Warrant Price shall be decreased, effective immediately
after the effective date of such Extraordinary Dividend, by the amount of cash and/ or the fair market value (as determined by the Board, in good faith) of any securities or other assets paid on each Ordinary Share in respect of such Extraordinary
Dividend. For purposes of this subsection 4.1.2, “Ordinary Cash Dividends” means any cash dividend or cash distribution which, when combined on a per share basis, with the per share amounts of all other cash dividends
and cash distributions paid on the Ordinary Shares during the 365-day period ending on the date of declaration of such dividend or distribution (as adjusted to appropriately reflect any of the events referred
to in other subsections of this Section 4 and excluding cash dividends or cash distributions that resulted in an adjustment to the Warrant Price or to the number of Ordinary Shares issuable on exercise of each Warrant) does
not exceed $0.50 (being 5% of the offering price of the Units in the Offering). 

  

	4.2	Aggregation of Shares. If after the date hereof, and subject to the provisions of Section 4.6 hereof, the number of outstanding Ordinary Shares is decreased by a consolidation,
combination, reverse share split or reclassification of Ordinary Shares or other similar event, then, on the effective date of such consolidation, combination, reverse share split, reclassification or similar event, the number of Ordinary Shares
issuable on exercise of each Warrant shall be decreased in proportion to such decrease in outstanding Ordinary Shares. 

  

	4.3	Adjustments in Exercise Price. Whenever the number of Ordinary Shares purchasable upon the exercise of the Warrants is adjusted, as provided in subsection 4.1.1 or Section 4.2
above, the Warrant Price shall be adjusted (to the nearest cent) by multiplying such Warrant Price immediately prior to such adjustment by a fraction (x) the numerator of which shall be the number of Ordinary Shares purchasable upon the
exercise of the Warrants immediately prior to such adjustment, and (y) the denominator of which shall be the number of Ordinary Shares so purchasable immediately thereafter. 

 

	4.4	 Replacement of Securities upon Reorganization, etc. In case of any reclassification or reorganization of
the outstanding Ordinary Shares (other than a change under subsections 4.1.1 or 4.1.2 or Section 4.2 hereof or that solely affects the par value of such Ordinary Shares), or in the case of any merger or
consolidation of the Company with or into another entity or conversion of the Company as another entity (other than a consolidation or merger in which the Company is the continuing corporation and that does not result in

  
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any reclassification or reorganization of the outstanding Ordinary Shares), or in the case of any sale or conveyance to another entity of the assets or other property of the Company as an
entirety or substantially as an entirety in connection with which the Company is dissolved, the holders of the Warrants shall thereafter have the right to purchase and receive, upon the basis and upon the terms and conditions specified in the
Warrants and in lieu of the Ordinary Shares of the Company immediately theretofore purchasable and receivable upon the exercise of the rights represented thereby, the kind and amount of shares or other securities or property (including cash)
receivable upon such reclassification, reorganization, merger or consolidation, or upon a dissolution following any such sale or transfer, that the holder of the Warrants would have received if such holder had exercised his, her or its Warrant(s)
immediately prior to such event (the “Alternative Issuance” ) and the successor or purchasing entity, as the case may be, shall execute an amendment hereto with the Warrant Agent providing for delivery of such Alternative
Issuance; provided, however, that (i) if the holders of the Ordinary Shares were entitled to exercise a right of election as to the kind or amount of securities, cash or other assets receivable upon such consolidation or merger,
then the kind and amount of securities, cash or other assets constituting the Alternative Issuance for which each Warrant shall become exercisable shall be deemed to be the weighted average of the kind and amount received per share by the holders of
the Ordinary Shares in such consolidation or merger that affirmatively make such election, and (ii) if a tender, exchange or redemption offer shall have been made to and accepted by the holders of the Ordinary Shares (other than a tender,
exchange or redemption offer made by the Company in connection with redemption rights held by shareholders of the Company as provided for in the Company’s amended and restated memorandum and articles of association or as a result of the
repurchase of Ordinary Shares by the Company if a proposed initial Business Combination is presented to the shareholders of the Company for approval) under circumstances in which, upon completion of such tender or exchange offer, the maker thereof,
together with members of any group (within the meaning of Rule 13d-5(b)(1) under the Exchange Act (or any successor rule)) of which such maker is a part, and together with any affiliate or associate of such
maker (within the meaning of Rule 12b-2 under the Exchange Act (or any successor rule)) and any members of any such group of which any such affiliate or associate is a part, own beneficially (within the
meaning of Rule 13d-3 under the Exchange Act (or any successor rule)) more than 50% of the outstanding Ordinary Shares, the holder of a Warrant shall be entitled to receive as the Alternative Issuance, the
highest amount of cash, securities or other property to which such holder would actually have been entitled as a shareholder if such Warrant holder had exercised the Warrant prior to the expiration of such tender or exchange offer, accepted such
offer and all of the Ordinary Shares held by such holder had been purchased pursuant to such tender or exchange offer, subject to adjustments (from and after the consummation of such tender or exchange offer) as nearly equivalent as possible to the
adjustments provided for in this Section 4; provided, further, that if less than 70% of the consideration receivable by the holders of the Ordinary Shares in the applicable event is payable in the form of
common stock in the successor entity that is listed for trading on a national securities exchange or is quoted in an established over-the-counter market, or is to be so
listed for trading or quoted immediately following such event, and if the Registered Holder properly exercises the Warrant within thirty (30) days following the 

  
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public disclosure of the consummation of such applicable event by the Company pursuant to a Current Report on Form 8-K filed with the Commission, the
Warrant Price shall be reduced by an amount (in dollars) equal to the difference of (i) the Warrant Price in effect prior to such reduction minus (ii) (A) the Per Share Consideration (as defined below) (but in no event less than zero)
minus (B) the Black-Scholes Warrant Value (as defined below). The “Black-Scholes Warrant Value” means the value of a Warrant immediately prior to the consummation of the applicable event based on the Black-Scholes
Warrant Model for a Capped American Call on Bloomberg Financial Markets (“Bloomberg”). For purposes of calculating such amount, (1) Section 6 of this Agreement shall be taken into account,
(2) the price of each Ordinary Share shall be the volume weighted average price of the Ordinary Shares as reported during the ten (10) trading day period ending on the trading day prior to the effective date of the applicable event,
(3) the assumed volatility shall be the 90 day volatility obtained from the HVT function on Bloomberg determined as of the trading day immediately prior to the day of the announcement of the applicable event, and (4) the assumed risk-free
interest rate shall correspond to the U.S. Treasury rate for a period equal to the remaining term of the Warrant. “Per Share Consideration” means (i) if the consideration paid to holders of the Ordinary Shares consists
exclusively of cash, the amount of such cash per Ordinary Share, and (ii) in all other cases, the volume weighted average price of the Ordinary Shares as reported during the ten (10) trading day period ending on the trading day prior to
the effective date of the applicable event. If any reclassification or reorganization also results in a change in Ordinary Shares covered by subsection 4.1.1, then such adjustment shall be made pursuant to subsection 4.1.1 or
Sections 4.2, 4.3 and this Section 4.4. The provisions of this Section 4.4 shall similarly apply to successive reclassifications, reorganizations, mergers or consolidations, sales or
other transfers. In no event will the Warrant Price be reduced to less than the par value per share issuable upon exercise of the Warrant. 

  

	4.5	Notices of Changes in Warrant. Upon every adjustment of the Warrant Price or the number of Ordinary Shares issuable upon exercise of a Warrant, the Company shall give written notice thereof to the Warrant Agent,
which notice shall state the Warrant Price resulting from such adjustment and the increase or decrease, if any, in the number of Ordinary Shares purchasable at such price upon the exercise of a Warrant, setting forth in reasonable detail the method
of calculation and the facts upon which such calculation is based. Upon the occurrence of any event specified in Sections 4.1, 4.2, 4.3 or 4.4, the Company shall give written notice of the occurrence of such event to each
holder of a Warrant, at the last address set forth for such holder in the Warrant Register, of the record date or the effective date of the event. Failure to give such notice, or any defect therein, shall not affect the legality or validity of such
event. 

  

	4.6	No Fractional Shares. Notwithstanding any provision contained in this Agreement to the contrary, the Company shall not issue fractional Ordinary Shares upon the exercise of Warrants. If, by reason of any
adjustment made pursuant to this Section 4, the holder of any Warrant would be entitled, upon the exercise of such Warrant, to receive a fractional interest in a share, the Company shall, upon such exercise, round down to
the nearest whole number the number of Ordinary Shares to be issued to such holder. 

  
 11 

	4.7	Form of Warrant. The form of Warrant need not be changed because of any adjustment pursuant to this Section 4, and Warrants issued after such adjustment may state the same Warrant Price
and the same number of Ordinary Shares as is stated in the Warrants initially issued pursuant to this Agreement; provided, however, that the Company may at any time in its sole discretion make any change in the form of Warrant that the
Company may deem appropriate and that does not affect the substance thereof, and any Warrant thereafter issued or countersigned, whether in exchange or substitution for an outstanding Warrant or otherwise, may be in the form as so changed.

  

	5	Transfer and Exchange of Warrants. 

  

	5.1	Registration of Transfer. The Warrant Agent shall register the transfer, from time to time, of any outstanding Warrant upon the Warrant Register, upon surrender of such Warrant for transfer, properly endorsed
with signatures properly guaranteed and accompanied by appropriate instructions for transfer. Upon any such transfer, a new Warrant representing an equal aggregate number of Warrants shall be issued and the old Warrant shall be cancelled by the
Warrant Agent. The Warrants so cancelled shall be delivered by the Warrant Agent to the Company from time to time upon request. 

  

	5.2	Procedure for Surrender of Warrants. Warrants may be surrendered to the Warrant Agent, together with a written request for exchange or transfer, and thereupon the Warrant Agent shall issue in exchange therefor
one or more new Warrants as requested by the Registered Holder of the Warrants so surrendered, representing an equal aggregate number of Warrants; provided, however, that in the event that a Warrant surrendered for transfer bears a
restrictive legend (as in the case of the Private Placement Warrants), the Warrant Agent shall not cancel such Warrant and issue new Warrants in exchange thereof until the Warrant Agent has received an opinion of counsel for the Company stating that
such transfer may be made and indicating whether the new Warrants must also bear a restrictive legend. 

  

	5.3	Fractional Warrants. The Warrant Agent shall not be required to effect any registration of transfer or exchange which shall result in the issuance of a warrant certificate or book-entry position for a fraction of
a warrant, except as part of the Units. 

  

	5.4	Service Charges. No service charge shall be made for any exchange or registration of transfer of Warrants. 

  

	5.5	Warrant Execution and Countersignature. The Warrant Agent is hereby authorized to countersign and to deliver, in accordance with the terms of this Agreement, the Warrants required to be issued pursuant to the
provisions of this Section 5, and the Company, whenever required by the Warrant Agent, shall supply the Warrant Agent with Warrants duly executed on behalf of the Company for such purpose. 

 

	5.6	Transfer of Warrants. Prior to the Detachment Date, the Public Warrants may be transferred or exchanged only together with the Unit in which such Warrant is included, and only for the purpose of effecting, or in
conjunction with, a transfer or exchange of such Unit. Furthermore, each transfer of a Unit on the register relating to such Units shall operate also to transfer the Warrants included in such Unit. Notwithstanding the foregoing, the provisions of
this Section 5.6 shall have no effect on any transfer of Warrants on and after the Detachment Date. 

  
 12 

	6	Redemption. 

  

	6.1	Redemption. Subject to Section 6.4 hereof, not less than all of the outstanding Warrants may be redeemed, at the option of the Company, at any time while they are exercisable and prior
to their expiration, at the office of the Warrant Agent, upon notice to the Registered Holders of the Warrants, as described in Section 6.2 below, at the price of $0.01 per Warrant (the “Redemption
Price”), provided that the last sales price of the Ordinary Shares reported has been at least $18.00 per share (subject to adjustment in compliance with Section 4 hereof), on each of twenty
(20) trading days within the thirty (30) trading-day period ending on the third trading day prior to the date on which notice of the redemption is given and provided that there is an effective
registration statement covering the Ordinary Shares issuable upon exercise of the Warrants, and a current prospectus relating thereto, available throughout the 30-day Redemption Period (as defined in
Section 6.2 below) or the Company has elected to require the exercise of the Warrants on a “cashless basis” pursuant to subsection 3.3.1. 

 

	6.2	Date Fixed for, and Notice of, Redemption. In the event that the Company elects to redeem all of the Warrants, the Company shall fix a date for the redemption (the “Redemption Date”).
Notice of redemption shall be mailed by first class mail, postage prepaid, by the Company not less than thirty (30) days prior to the Redemption Date (the “30-day Redemption
Period”) to the Registered Holders of the Warrants to be redeemed at their last addresses as they shall appear on the registration books. Any notice mailed in the manner herein provided shall be conclusively presumed to have been duly
given whether or not the Registered Holder received such notice. 

  

	6.3	Exercise After Notice of Redemption. The Warrants may be exercised, for cash (or on a “cashless basis” in accordance with subsection 3.3.1(b)) at any time after notice of redemption shall have
been given by the Company pursuant to Section 6.2 hereof and prior to the Redemption Date. In the event that the Company determines to require all holders of Warrants to exercise their Warrants on a “cashless
basis” pursuant to subsection 3.3.1, the notice of redemption shall contain the information necessary to calculate the number of Ordinary Shares to be received upon exercise of the Warrants, including the “Fair Market Value”
(as such term is defined in subsection 3.3.1(b)) in such case. On and after the Redemption Date, the record holder of the Warrants shall have no further rights except to receive, upon surrender of the Warrants, the Redemption Price.

  

	6.4	 Exclusion of Private Placement Warrants. The Company agrees that the redemption rights provided in this
Section 6 shall not apply to the Private Placement Warrants if at the time of the redemption such Private Placement Warrants continue to be held by the Sponsor or its Permitted Transferees. However, once such Private
Placement Warrants are transferred (other than to Permitted Transferees under Section 2.5), the Company may redeem the Private Placement Warrants, provided that the criteria for redemption are met, including the opportunity
of the holder of such Private Placement Warrants to exercise 

  
 13 

	 	
the Private Placement Warrants prior to redemption pursuant to Section 6.3. Private Placement Warrants that are transferred to persons other than Permitted Transferees
shall upon such transfer cease to be Private Placement Warrants and shall become Public Warrants under this Agreement. 

  

	7	Other Provisions Relating to Rights of Holders of Warrants. 

  

	7.1	No Rights as Shareholder. A Warrant does not entitle the Registered Holder thereof to any of the rights of a shareholder of the Company, including, without limitation, the right to receive dividends, or other
distributions, exercise any preemptive rights to vote or to consent or to receive notice as shareholders in respect of the general meetings of the Company or the election of directors of the Company or any other matter. 

 

	7.2	Lost, Stolen, Mutilated, or Destroyed Warrants. If any Warrant is lost, stolen, mutilated, or destroyed, the Company and the Warrant Agent may on such terms as to indemnity or otherwise as they may in their
discretion impose (which shall, in the case of a mutilated Warrant, include the surrender thereof), issue a new Warrant of like denomination, tenor, and date as the Warrant so lost, stolen, mutilated, or destroyed. Any such new Warrant shall
constitute a substitute contractual obligation of the Company, whether or not the allegedly lost, stolen, mutilated, or destroyed Warrant shall be at any time enforceable by anyone. 

 

	7.3	Reservation of Ordinary Shares. The Company shall at all times reserve and keep available a number of its authorized but unissued Ordinary Shares that shall be sufficient to permit the exercise in full of all
outstanding Warrants issued pursuant to this Agreement. 

  

	7.4	Registration of Ordinary Shares; Cashless Exercise at Company’s Option. 

  

	7.4.1	 Registration of the Ordinary Shares. The Company agrees that as soon as practicable, but in no event later
than twenty (20) Business Days after the closing of its initial Business Combination, it shall use its commercially reasonable efforts to file with the Commission a registration statement for the registration, under the Securities Act, of the
Ordinary Shares issuable upon exercise of the Warrants. The Company shall use its commercially reasonable efforts to cause the same to become effective and to maintain the effectiveness of such registration statement, and a current prospectus
relating thereto, until the expiration of the Warrants in accordance with the provisions of this Agreement. If any such registration statement has not been declared effective by the 60th Business Day following the closing of the initial Business
Combination, holders of the Warrants shall have the right, during the period beginning on the 61st Business Day after the closing of the initial Business Combination and ending upon such registration statement being declared effective by the
Commission, and during any other period when the Company shall fail to have maintained an effective registration statement covering the Ordinary Shares issuable upon exercise of the Warrants, to exercise such Warrants on a “cashless
basis,” by exchanging the Warrants (in accordance with Section 3(a)(9) of the Securities Act (or any successor rule) or another exemption) for that number of Ordinary Shares equal to the quotient obtained by dividing (x) the product
of the number of Ordinary Shares underlying the Warrants, multiplied by the 

  
 14 

	 	
difference between the Warrant Price and the “Fair Market Value” (as defined below) by (y) the Fair Market Value. Solely for purposes of this subsection 7.4.1, “Fair
Market Value” shall mean the volume weighted average price of the Ordinary Shares as reported during the ten (10) trading day period ending on the trading day prior to the date that notice of exercise is received by the Warrant Agent from
the holder of such Warrants or its securities broker or intermediary. The date that notice of cashless exercise is received by the Warrant Agent shall be conclusively determined by the Warrant Agent. In connection with the “cashless
exercise” of a Public Warrant, the Company shall, upon request, provide the Warrant Agent with an opinion of counsel for the Company (which shall be an outside law firm with securities law experience) stating that (i) the exercise of the
Warrants on a cashless basis in accordance with this subsection 7.4.1 is not required to be registered under the Securities Act and (ii) the Ordinary Shares issued upon such exercise shall be freely tradable under United States federal
securities laws by anyone who is not an affiliate (as such term is defined in Rule 144 under the Securities Act (or any successor rule)) of the Company and, accordingly, shall not be required to bear a restrictive legend. Except as provided in
subsection 7.4.2, for the avoidance of any doubt, unless and until all of the Warrants have been exercised or have expired, the Company shall continue to be obligated to comply with its registration obligations under the first three sentences
of this subsection 7.4.1. 

  

	7.4.2	Cashless Exercise at Company’s Option. If the Ordinary Shares are at the time of any exercise of a Warrant not listed on a national securities exchange such that it satisfies the definition of a
“covered security” under Section 18(b)(1) of the Securities Act (or any successor rule), the Company may, at its option, (i) require holders of Public Warrants who exercise Public Warrants to exercise such Public Warrants on a
“cashless basis” in accordance with Section 3(a)(9) of the Securities Act (or any successor rule) as described in subsection 7.4.1 and (ii) in the event the Company so elects, the Company shall (x) not be required to
file or maintain in effect a registration statement for the registration, under the Securities Act, of the Ordinary Shares issuable upon exercise of the Warrants, notwithstanding anything in this Agreement to the contrary, and (y) use its best
efforts to register or qualify for sale the Ordinary Shares issuable upon exercise of the Public Warrant under the blue sky laws of the state of residence of the exercising Public Warrant holder to the extent an exemption is not available.

  

	8	Concerning the Warrant Agent and Other Matters. 

  

	8.1	Payment of Taxes. The Company shall from time to time promptly pay all taxes and charges that may be imposed upon the Company or the Warrant Agent in respect of the issuance or delivery of Ordinary Shares upon
the exercise of the Warrants, but the Company shall not be obligated to pay any transfer taxes in respect of the Warrants or such Ordinary Shares. 

  

	8.2	Resignation, Consolidation, or Merger of Warrant Agent. 

  

	8.2.1	 Appointment of Successor Warrant Agent. The Warrant Agent, or any successor to it hereafter appointed, may
resign its duties and be discharged from all further duties and liabilities hereunder after giving sixty (60) days’ notice in writing to the Company. If the 

  
 15 

	 	
office of the Warrant Agent becomes vacant by resignation or incapacity to act or otherwise, the Company shall appoint in writing a successor Warrant Agent in place of the Warrant Agent. If the
Company shall fail to make such appointment within a period of thirty (30) days after it has been notified in writing of such resignation or incapacity by the Warrant Agent or by the holder of a Warrant (who shall, with such notice, submit his
Warrant for inspection by the Company), then the holder of any Warrant may apply to the Supreme Court of the State of New York for the County of New York for the appointment of a successor Warrant Agent at the Company’s cost. Any successor
Warrant Agent, whether appointed by the Company or by such court, shall be a corporation organized and existing under the laws of the State of New York, in good standing and having its principal office in the Borough of Manhattan, City and State of
New York, and authorized under such laws to exercise corporate trust powers and subject to supervision or examination by federal or state authority. After appointment, any successor Warrant Agent shall be vested with all the authority, powers,
rights, immunities, duties, and obligations of its predecessor Warrant Agent with like effect as if originally named as Warrant Agent hereunder, without any further act or deed; but if for any reason it becomes necessary or appropriate, the
predecessor Warrant Agent shall execute and deliver, at the expense of the Company, an instrument transferring to such successor Warrant Agent all the authority, powers, and rights of such predecessor Warrant Agent hereunder; and upon request of any
successor Warrant Agent the Company shall make, execute, acknowledge, and deliver any and all instruments in writing for more fully and effectually vesting in and confirming to such successor Warrant Agent all such authority, powers, rights,
immunities, duties, and obligations. 

  

	8.2.2	Notice of Successor Warrant Agent. In the event a successor Warrant Agent shall be appointed, the Company shall give notice thereof to the predecessor Warrant Agent and the Transfer Agent for the Ordinary Shares
not later than the effective date of any such appointment. 

  

	8.2.3	Merger or Consolidation of Warrant Agent. Any corporation into which the Warrant Agent may be merged or with which it may be consolidated or any corporation resulting from any merger or consolidation to which the
Warrant Agent shall be a party shall be the successor Warrant Agent under this Agreement without any further act. 

  

	8.3	Fees and Expenses of Warrant Agent. 

  

	8.3.1	Remuneration. The Company agrees to pay the Warrant Agent reasonable remuneration for its services as such Warrant Agent hereunder and shall, pursuant to its obligations under this Agreement, reimburse the
Warrant Agent upon demand for all expenditures that the Warrant Agent may reasonably incur in the execution of its duties hereunder. 

  

	8.3.2	Further Assurances. The Company agrees to perform, execute, acknowledge, and deliver or cause to be performed, executed, acknowledged, and delivered all such further and other acts, instruments, and assurances as
may reasonably be required by the Warrant Agent for the carrying out or performing of the provisions of this Agreement. 

  
 16 

	8.4	Liability of Warrant Agent. 

  

	8.4.1	Reliance on Company Statement. Whenever in the performance of its duties under this Agreement, the Warrant Agent shall deem it necessary or desirable that any fact or matter be proved or established by the
Company prior to taking or suffering any action hereunder, such fact or matter (unless other evidence in respect thereof be herein specifically prescribed) may be deemed to be conclusively proved and established by a statement signed by the Chief
Executive Officer, Chief Financial Officer, Secretary or Chairman of the Board of the Company and delivered to the Warrant Agent. The Warrant Agent may rely upon such statement for any action taken or suffered in good faith by it pursuant to the
provisions of this Agreement. 

  

	8.4.2	Indemnity. The Warrant Agent shall be liable hereunder only for its own gross negligence, willful misconduct or bad faith. The Company agrees to indemnify the Warrant Agent and save it harmless against any and
all liabilities, including judgments, costs and reasonable, documented counsel fees, for anything done or omitted by the Warrant Agent in the execution of this Agreement, except as a result of the Warrant Agent’s gross negligence, willful
misconduct or bad faith. 

  

	8.4.3	Exclusions. The Warrant Agent shall have no responsibility with respect to the validity of this Agreement or with respect to the validity or execution of any Warrant (except its countersignature thereof). The
Warrant Agent shall not be responsible for any breach by the Company of any covenant or condition contained in this Agreement or in any Warrant. The Warrant Agent shall not be responsible to make any adjustments required under the provisions of
Section 4 hereof or responsible for the manner, method, or amount of any such adjustment or the ascertaining of the existence of facts that would require any such adjustment; nor shall it by any act hereunder be deemed to
make any representation or warranty as to the authorization or reservation of any Ordinary Shares to be issued pursuant to this Agreement or any Warrant or as to whether any Ordinary Shares shall, when issued, be valid and fully paid and non-assessable. 

  

	8.5	Acceptance of Agency. The Warrant Agent hereby accepts the agency established by this Agreement and agrees to perform the same upon the terms and conditions herein set forth and among other things, shall account
promptly to the Company with respect to Warrants exercised and concurrently account for, and pay to the Company, all monies received by the Warrant Agent for the purchase of Ordinary Shares through the exercise of the Warrants. 

 

	8.6	Waiver. The Warrant Agent has no right of set-off or any other right, title, interest or claim of any kind (“Claim”) in, or to any distribution of,
the Trust Account (as defined in that certain Investment Management Trust Agreement, dated as of the date hereof, by and between the Company and the Warrant Agent as trustee thereunder) and hereby agrees not to seek recourse, reimbursement, payment
or satisfaction for any Claim against the Trust Account for any reason whatsoever. The Warrant Agent hereby waives any and all Claims against the Trust Account and any and all rights to seek access to the Trust Account. 

  
 17 

	9	Miscellaneous Provisions. 

  

	9.1	Successors. All the covenants and provisions of this Agreement by or for the benefit of the Company or the Warrant Agent shall bind and inure to the benefit of their respective successors and assigns.

  

	9.2	Notices. Any notice, statement or demand authorized by this Agreement to be given or made by the Warrant Agent or by the holder of any Warrant to or on the Company shall be sufficiently given when so delivered if
by hand or overnight delivery or if sent by certified mail or private courier service within five (5) days after deposit of such notice, postage prepaid, addressed (until another address is filed in writing by the Company with the Warrant
Agent), as follows: 

 Iron Horse Acquisition Corp. 

c/o Cerberus Capital Management, L.P. 

875 Third Avenue 
 New York, NY
10022 
 Attention: Steven F. Mayer 

Any notice, statement or demand authorized by this Agreement to be given or made by the holder of any Warrant or by the Company to or on the
Warrant Agent shall be sufficiently given when so delivered if by hand or overnight delivery or if sent by certified mail or private courier service within five (5) days after deposit of such notice, postage prepaid, addressed (until another
address is filed in writing by the Warrant Agent with the Company), as follows: 
 Continental Stock Transfer & Trust Company 

17 Battery Place 
 New York, NY
10004 
 Attention: Compliance Department 
  

	9.3	Applicable Law. The validity, interpretation, and performance of this Agreement and of the Warrants shall be governed in all respects by the laws of the State of New York, without giving effect to conflicts of
law principles that would result in the application of the substantive laws of another jurisdiction. The Company hereby agrees that any action, proceeding or claim against it arising out of or relating in any way to this Agreement shall be brought
and enforced in the courts of the State of New York or the United States District Court for the Southern District of New York, and irrevocably submits to such jurisdiction, which jurisdiction shall be exclusive. The Company hereby waives any
objection to such exclusive jurisdiction and that such courts represent an inconvenient forum. 

  

	9.4	Persons Having Rights under this Agreement. Nothing in this Agreement shall be construed to confer upon, or give to, any person or corporation other than the parties hereto and the Registered Holders of the
Warrants any right, remedy, or claim under or by reason of this Agreement or of any covenant, condition, stipulation, promise, or agreement hereof. All covenants, conditions, stipulations, promises, and agreements contained in this Agreement shall
be for the sole and exclusive benefit of the parties hereto and their successors and assigns and of the Registered Holders of the Warrants. 

  
 18 

	9.5	Examination of the Warrant Agreement. A copy of this Agreement shall be available at all reasonable times at the office of the Warrant Agent in the Borough of Manhattan, City and State of New York, for inspection
by the Registered Holder of any Warrant. The Warrant Agent may require any such holder to submit his Warrant for inspection by it. 

  

	9.6	Counterparts. This Agreement may be executed in any number of original or facsimile counterparts and each of such counterparts shall for all purposes be deemed to be an original, and all such counterparts shall
together constitute but one and the same instrument. 

  

	9.7	Effect of Headings. The section headings herein are for convenience only and are not part of this Agreement and shall not affect the interpretation thereof. 

 

	9.8	Amendments. This Agreement may be amended by the parties hereto without the consent of any Registered Holder (i) for the purpose of curing any ambiguity, or curing, correcting or supplementing any defective
provision contained herein or adding or changing any other provisions with respect to matters or questions arising under this Agreement as the parties may deem necessary or desirable and that the parties deem shall not adversely affect the interest
of the Registered Holders, and (ii) to provide for the delivery of Alternative Issuance pursuant to Section 4.4. All other modifications or amendments, including any amendment to increase the Warrant Price or shorten the Exercise Period
and any amendment to the terms of only the Private Placement Warrants, shall require the vote or written consent of the Registered Holders of 50% of the then outstanding Public Warrants. Notwithstanding the foregoing, the Company may lower the
Warrant Price or extend the duration of the Exercise Period pursuant to Sections 3.1 and 3.2, respectively, without the consent of the Registered Holders. 

 

	9.9	Severability. This Agreement shall be deemed severable, and the invalidity or unenforceability of any term or provision hereof shall not affect the validity or enforceability of this Agreement or of any other
term or provision hereof. Furthermore, in lieu of any such invalid or unenforceable term or provision, the parties hereto intend that there shall be added as a part of this Agreement a provision as similar in terms to such invalid or unenforceable
provision as may be possible and be valid and enforceable. 

 Exhibit A Form of Warrant Certificate 

Exhibit B Legend—Private Placement Warrants 

  
 19 

 IN WITNESS WHEREOF, the parties hereto have caused this Agreement to be duly executed as of the
date first above written. 
  

			
	IRON HORSE ACQUISITION CORP.
		
	By:	 	 
	Name:	 	Steven F. Mayer
	Title:	 	Chief Executive Officer

  

			
	CONTINENTAL STOCK TRANSFER & TRUST COMPANY, as Warrant Agent

 
			
		
	By: 	 	 

 
			
	Name: 	 	 

 
			
	Title: 	 	 

 [Signature Page to Warrant Agreement] 

 EXHIBIT A 

[Form of Warrant Certificate] 

[FACE] 
 Number 

Warrants 
  

 
 THIS WARRANT
SHALL BE VOID IF NOT EXERCISED PRIOR 
 TO THE EXPIRATION OF THE EXERCISE PERIOD PROVIDED FOR 

IN THE WARRANT AGREEMENT DESCRIBED BELOW 

IRON HORSE ACQUISITION CORP. 

A Cayman Islands Exempted Company 

CUSIP [●] 
 Warrant
Certificate 
 This Warrant Certificate certifies
that                , or registered assigns, is the registered holder of warrant(s) evidenced hereby (the
“Warrants” and each, a “Warrant”) to purchase Class A ordinary shares, $0.0001 par value (“Ordinary Shares”), of Iron Horse Acquisition Corp., a Cayman Islands exempted
company (the “Company”). Each Warrant entitles the holder, upon exercise during the period set forth in the Warrant Agreement referred to below, to receive from the Company that number of fully paid and non-assessable Ordinary Shares as set forth below, at the exercise price (the “Exercise Price”) as determined pursuant to the Warrant Agreement, payable in lawful money (or through
“cashless exercise” as provided for in the Warrant Agreement) of the United States of America upon surrender of this Warrant Certificate and payment of the Exercise Price at the office or agency of the Warrant Agent referred
to below, subject to the conditions set forth herein and in the Warrant Agreement. Defined terms used in this Warrant Certificate but not defined herein shall have the meanings given to them in the Warrant Agreement. 

Each Warrant is initially exercisable for one fully paid and non-assessable Ordinary Share. The number
of Ordinary Shares issuable upon exercise of the Warrants is subject to adjustment upon the occurrence of certain events set forth in the Warrant Agreement. 

The initial Exercise Price per Ordinary Share for any Warrant is equal to $11.50 per share. The Exercise Price is subject to adjustment upon
the occurrence of certain events set forth in the Warrant Agreement. 
 Subject to the conditions set forth in the Warrant Agreement, the
Warrants may be exercised only during the Exercise Period and to the extent not exercised by the end of such Exercise Period, such Warrants shall become void. 

  
 A-1 

 Reference is hereby made to the further provisions of this Warrant Certificate set forth on the
reverse hereof and such further provisions shall for all purposes have the same effect as though fully set forth at this place. 
 This
Warrant Certificate shall not be valid unless countersigned by the Warrant Agent, as such term is used in the Warrant Agreement. 
 This
Warrant Certificate shall be governed by and construed in accordance with the internal laws of the State of New York, without regard to conflicts of laws principles thereof. 

 

			
	IRON HORSE ACQUISITION CORP.

 
			
		
	By: 	 	 

 
			
	Name: 	 	 

 
			
	Title: 	 	 

  

			
	CONTINENTAL STOCK TRANSFER & TRUST COMPANY, as Warrant Agent

 
			
		
	By: 	 	 

 
			
	Name: 	 	 

 
			
	Title: 	 	 

  
 A-2 

 [Form of Warrant Certificate] 

[Reverse] 
 The Warrants evidenced
by this Warrant Certificate are part of a duly authorized issue of Warrants entitling the holder on exercise to receive Ordinary Shares and are issued or to be issued pursuant to a Warrant Agreement dated as of [●], 2018 (the
“Warrant Agreement”), duly executed and delivered by the Company to Continental Stock Transfer & Trust Company, a New York corporation, as warrant agent (the “Warrant Agent”), which Warrant
Agreement is hereby incorporated by reference in and made a part of this instrument and is hereby referred to for a description of the rights, limitation of rights, obligations, duties and immunities thereunder of the Warrant Agent, the Company and
the holders (the words “holders” or “holder” meaning the Registered Holders or Registered Holder) of the Warrants. A copy of the Warrant Agreement may be obtained by the holder hereof upon written
request to the Company. Defined terms used in this Warrant Certificate but not defined herein shall have the meanings given to them in the Warrant Agreement. 

Warrants may be exercised at any time during the Exercise Period set forth in the Warrant Agreement. The holder of Warrants evidenced by this
Warrant Certificate may exercise them by surrendering this Warrant Certificate, with the form of election to purchase set forth hereon properly completed and executed, together with payment of the Exercise Price as specified in the Warrant Agreement
(or through “cashless exercise” as provided for in the Warrant Agreement) at the principal corporate trust office of the Warrant Agent. In the event that upon any exercise of Warrants evidenced hereby the number of Warrants exercised shall
be less than the total number of Warrants evidenced hereby, there shall be issued to the holder hereof or his, her or its assignee, a new Warrant Certificate evidencing the number of Warrants not exercised. 

Notwithstanding anything else in this Warrant Certificate or the Warrant Agreement, no Warrant may be exercised unless at the time of exercise
(i) a registration statement covering the Ordinary Shares to be issued upon exercise is effective under the Securities Act and (ii) a prospectus thereunder relating to the Ordinary Shares is current, except through “cashless
exercise” as provided for in the Warrant Agreement. 
 The Warrant Agreement provides that upon the occurrence of certain events the
number of Ordinary Shares issuable upon exercise of the Warrants set forth on the face hereof may, subject to certain conditions, be adjusted. If, upon exercise of a Warrant, the holder thereof would be entitled to receive a fractional interest in
an Ordinary Share, the Company shall, upon exercise, round down to the nearest whole number of Ordinary Shares to be issued to the holder of the Warrant. 

Warrant Certificates, when surrendered at the principal corporate trust office of the Warrant Agent by the Registered Holder thereof in person
or by legal representative or attorney duly authorized in writing, may be exchanged, in the manner and subject to the limitations provided in the Warrant Agreement, but without payment of any service charge, for another Warrant Certificate or
Warrant Certificates of like tenor evidencing in the aggregate a like number of Warrants. 

  
 A-3 

 Upon due presentation for registration of transfer of this Warrant Certificate at the office of
the Warrant Agent a new Warrant Certificate or Warrant Certificates of like tenor and evidencing in the aggregate a like number of Warrants shall be issued to the transferee(s) in exchange for this Warrant Certificate, subject to the limitations
provided in the Warrant Agreement, without charge except for any tax or other governmental charge imposed in connection therewith. 
 The
Company and the Warrant Agent may deem and treat the Registered Holder(s) hereof as the absolute owner(s) of this Warrant Certificate (notwithstanding any notation of ownership or other writing hereon made by anyone), for the purpose of any exercise
hereof, of any distribution to the holder(s) hereof, and for all other purposes, and neither the Company nor the Warrant Agent shall be affected by any notice to the contrary. Neither the Warrants nor this Warrant Certificate entitles any holder
hereof to any rights of a shareholder of the Company. 

  
 A-4 

 Election to Purchase 

(To Be Executed Upon Exercise of Warrant) 

The undersigned hereby irrevocably elects to exercise the right, represented by this Warrant Certificate, to receive Ordinary Shares and
herewith tenders payment for such Ordinary Shares to the order of Iron Horse Acquisition Corp. (the “Company”) in the amount of $[●] in accordance with the terms hereof. The undersigned requests that a certificate for such
Ordinary Shares be registered in the name of [●], whose address is [●] and that such Ordinary Shares be delivered to whose address is [●]. If said number of Ordinary Shares is less than all of the Ordinary Shares purchasable
hereunder, the undersigned requests that a new Warrant Certificate representing the remaining balance of such Ordinary Shares be registered in the name of [●], whose address is [●] and that such Warrant Certificate be delivered to
[●], whose address is [●]. 
 In the event that the Warrant has been called for redemption by the Company pursuant to
Section 6 of the Warrant Agreement and the Company has required cashless exercise pursuant to Section 6.3 of the Warrant Agreement, the number of Ordinary Shares that this Warrant is exercisable
for shall be determined in accordance with subsection 3.3.1(b) and Section 6.3 of the Warrant Agreement. 

In the event that the Warrant is a Private Placement Warrant that is to be exercised on a “cashless” basis pursuant to subsection
3.3.1(c) of the Warrant Agreement, the number of Ordinary Shares that this Warrant is exercisable for shall be determined in accordance with subsection 3.3.1(c) of the Warrant Agreement. 

In the event that the Warrant is to be exercised on a “cashless” basis pursuant to Section 7.4 of the
Warrant Agreement, the number of Ordinary Shares that this Warrant is exercisable for shall be determined in accordance with Section 7.4 of the Warrant Agreement. 

In the event that the Warrant may be exercised, to the extent allowed by the Warrant Agreement, through cashless exercise (i) the number
of Ordinary Shares that this Warrant is exercisable for would be determined in accordance with the relevant section of the Warrant Agreement which allows for such cashless exercise and (ii) the holder hereof shall complete the following: The
undersigned hereby irrevocably elects to exercise the right, represented by this Warrant Certificate, through the cashless exercise provisions of the Warrant Agreement, to receive Ordinary Shares. If said number of shares is less than all of the
Ordinary Shares purchasable hereunder (after giving effect to the cashless exercise), the undersigned requests that a new Warrant Certificate representing the remaining balance of such Ordinary Shares be registered in the name of [●], whose
address is [●] and that such Warrant Certificate be delivered to [●], whose address is [●]. 
 [Signature Page Follows]

  
 A-5 

 Date:    , 20 

 

	
	   

	(Signature)
	
	   

	 
	 
	Address
	
	 
	(Tax Identification Number)

 Signature Guaranteed: 
  

 
 THE SIGNATURE(S) SHOULD BE GUARANTEED BY AN
ELIGIBLE GUARANTOR INSTITUTION (BANKS, STOCKBROKERS, SAVINGS AND LOAN ASSOCIATIONS AND CREDIT UNIONS WITH MEMBERSHIP IN AN APPROVED SIGNATURE GUARANTEE MEDALLION PROGRAM, PURSUANT TO S.E.C. RULE 17Ad-15 (OR
ANY SUCCESSOR RULE)). 
 [Signature Page to Election to Purchase] 

 EXHIBIT B 

LEGEND 
 “THE SECURITIES REPRESENTED
BY THIS CERTIFICATE HAVE NOT BEEN REGISTERED UNDER THE SECURITIES ACT OF 1933, AS AMENDED, OR ANY STATE SECURITIES LAWS, AND MAY NOT BE OFFERED, SOLD, TRANSFERRED OR OTHERWISE DISPOSED OF UNLESS REGISTERED UNDER THE SECURITIES ACT OF 1933, AS
AMENDED, AND ANY APPLICABLE STATE SECURITIES LAWS OR AN EXEMPTION FROM REGISTRATION IS AVAILABLE. IN ADDITION, SUBJECT TO ANY ADDITIONAL LIMITATIONS ON TRANSFER DESCRIBED IN THE LETTER AGREEMENT BY AND AMONG IRON HORSE ACQUISITION CORP. (THE
“COMPANY”), CERBERUS IRON HORSE HOLDINGS, LLC AND THE OTHER PARTIES THERETO, THE SECURITIES REPRESENTED BY THIS CERTIFICATE MAY NOT BE SOLD OR TRANSFERRED PRIOR TO THE DATE THAT IS THIRTY (30) DAYS AFTER THE DATE UPON WHICH THE
COMPANY COMPLETES ITS INITIAL BUSINESS COMBINATION (AS DEFINED IN SECTION 3 OF THE WARRANT AGREEMENT REFERRED TO HEREIN) EXCEPT TO A PERMITTED TRANSFEREE (AS DEFINED IN SECTION 2 OF THE WARRANT AGREEMENT) WHO AGREES IN WRITING WITH THE COMPANY TO BE
SUBJECT TO SUCH TRANSFER PROVISIONS. 
 SECURITIES EVIDENCED BY THIS CERTIFICATE AND CLASS A ORDINARY SHARES OF THE COMPANY ISSUED UPON EXERCISE OF SUCH
SECURITIES SHALL BE ENTITLED TO REGISTRATION RIGHTS UNDER A REGISTRATION RIGHTS AGREEMENT TO BE EXECUTED BY THE COMPANY.” 
  

			
	No.	  	Warrants

  
 B-1EX-10.1

 Exhibit 10.1 

                    , 2018 

Iron Horse Acquisition Corp. 
 c/o Cerberus Capital Management,
L.P. 
 875 Third Avenue 
 New York, New York 10022 

Re: Initial Public Offering 
 Ladies and Gentlemen: 

This letter (this “Letter Agreement”) is being delivered to you in accordance with the Underwriting Agreement (the
“Underwriting Agreement”) entered into by and among Iron Horse Acquisition Corp., a Cayman Islands exempted company (the “Company”), Citigroup Global Markets Inc. and Goldman Sachs & Co. LLC,
as representatives (the “Representatives”) of the several underwriters (the “Underwriters”), relating to an underwritten initial public offering (the “Public Offering”), of
50,000,000 of the Company’s units and up to an additional 7,500,000 Units that may be purchased at the option of the Underwriters to cover over-allotments, if any (the “Units”), each comprised of one of the
Company’s Class A ordinary shares, par value $0.0001 per share (the “Ordinary Shares”), and one-third of one redeemable warrant (each, a “Warrant”).
Each whole Warrant entitles the holder thereof to purchase one Ordinary Share at a price of $11.50 per share, subject to adjustment. The Units shall be sold in the Public Offering pursuant to a registration statement on Form S-1 and prospectus (the “Prospectus”) filed by the Company with the United States Securities and Exchange Commission (the “Commission”) and the Company intends to
apply to have the Units listed on the New York Stock Exchange. Certain capitalized terms used herein are defined in paragraph 1 hereof. 

In order to induce the Company and the Underwriters to enter into the Underwriting Agreement and to proceed with the Public Offering and for
other good and valuable consideration, the receipt and sufficiency of which are hereby acknowledged, Cerberus Iron Horse Holdings, LLC (the “Sponsor”) and each of the undersigned individuals (each, a
“Founder” and collectively, the “Founders”) hereby agree with the Company as follows: 
 1.
Definitions. As used herein, (i) “Business Combination” shall mean a merger, share exchange, asset acquisition, share purchase, reorganization or similar business combination, involving the Company and one or more
businesses; (ii) “Capital Shares” shall mean, collectively, the Ordinary Shares and the Founder Shares; (iii) “Founder Shares” shall mean the 14,375,000 Class B ordinary shares of the Company, par
value $0.0001 per share, issued and outstanding prior to the consummation of the Public Offering; (iv) “Private Placement Warrants” shall mean the Warrants to purchase Ordinary Shares that will be acquired by the
Sponsor for an aggregate purchase price of $12,000,000 (or $13,800,000 if the Underwriters’ over-allotment option is exercised), or $1.50 per Warrant, in a private placement that shall occur simultaneously with the consummation of the Public
Offering; (v) “Public Shareholders” shall mean the holders of securities issued in the Public Offering; (vi) “Trust Account” shall mean the trust fund into which a portion of the net proceeds of the
Public Offering shall be deposited; (vii) “Transfer” shall mean the (a) sale of, offer to sell, contract or 

 
agreement to sell, hypothecate, pledge, grant of any option to purchase or otherwise dispose of or agreement to dispose of, directly or indirectly, or establishment or increase of a put
equivalent position or liquidation with respect to or decrease of a call equivalent position within the meaning of Section 16 of the Securities Exchange Act of 1934, as amended, and the rules and regulations of the Commission promulgated
thereunder with respect to, any security, (b) entry into any swap or other arrangement that transfers to another, in whole or in part, any of the economic consequences of ownership of any security, whether any such transaction is to be settled
by delivery of such securities, in cash or otherwise, or (c) public announcement of any intention to effect any transaction specified in clause (a) or (b); and (viii) “Charter” shall mean the Company’s Amended
and Restated Memorandum and Articles of Association, as the same may be amended from time to time. 
 2. Representations and
Warranties. 
 (a) The Sponsor and each Founder have full right and power, without violating any agreement to which he or it is bound
(including, without limitation, any non-competition or non-solicitation agreement with any employer or former employer), to enter into this Letter Agreement, as
applicable, to serve as a director on the Board, as applicable, and each Founder hereby consents to being named in the Prospectus, road show and any other materials as an officer and/or director of the Company, as appropriate. 

(b) Each Founder’s biographical information furnished to the Company (including any such information included in the Prospectus) is true
and accurate in all respects. The Founder’s questionnaire furnished to the Company is true and accurate in all respects. Each Founder represents and warrants that: such Founder is not subject to or a respondent in any legal action for, any
injunction, cease-and-desist order or order or stipulation to desist or refrain from any act or practice relating to the offering of securities in any jurisdiction; such
Founder has never been convicted of, or pleaded guilty to, any crime (i) involving fraud, (ii) relating to any financial transaction or handling of funds of another person, or (iii) pertaining to any dealings in any securities and
such Founder is not currently a defendant in any such criminal proceeding; and neither such Founder nor the Sponsor has ever been suspended or expelled from membership in any securities or commodities exchange or association or had a securities or
commodities license or registration denied, suspended or revoked. 
 3. Business Combination Vote. The Sponsor and Founders agree
that if the Company seeks shareholder approval of a proposed initial Business Combination, then in connection with such proposed initial Business Combination, it or he, as applicable, shall vote all Founder Shares and any Ordinary Shares acquired by
it, him or her, as applicable, in the Public Offering or the secondary public market, in favor of such proposed initial Business Combination and not redeem any Ordinary Shares owned by it, him or her, as applicable, in connection with such
shareholder approval. 

  
 2 

 4. Failure to Consummate a Business Combination; Trust Account Waiver. 

(a) The Sponsor and Founders hereby agree that in the event that the Company fails to consummate its initial Business Combination within the
time period set forth in the Charter, the Sponsor and each Founder shall take all reasonable steps to cause the Company to (i) cease all operations except for the purpose of winding up, (ii) as promptly as reasonably possible but not more
than 20 business days thereafter, redeem 100% of the Ordinary Shares sold as part of the Units in the Public Offering (the “Offering Shares”), at a per-share price, payable in cash,
equal to the aggregate amount then on deposit in the Trust Account, including interest earned on the trust account (less taxes payable and up to $100,000 of interest to pay dissolution expenses), divided by the number of then issued and outstanding
public shares, which redemption will completely extinguish Public Shareholders’ rights as shareholders (including the right to receive further liquidation distributions, if any), and (iii) as promptly as reasonably possible following such
redemption, subject to the approval of the Company’s remaining shareholders and the Board, dissolve and liquidate, subject in the case of clauses (ii) and (iii) to the Company’s obligations under Cayman Islands law to provide for
claims of creditors and in all cases subject to the other requirements of applicable law. The Sponsor and Founders agree not to propose any amendment to the Charter that would affect the substance or timing of the Company’s obligation to redeem
the Offering Shares if the Company does not complete an initial Business Combination within the required time period set forth in the Charter unless the Company provides its Public Shareholders with the opportunity to redeem their Ordinary Shares
upon approval of any such amendment at a per-share price, payable in cash, equal to the aggregate amount then on deposit in the Trust Account, including interest earned on the trust account and not previously
released to the Company, divided by the number of then issued and outstanding Ordinary Shares. 
 (b) Each of the Founders and Sponsor
acknowledges that they have no right, title, interest or claim of any kind in or to any monies held in the Trust Account or any other asset of the Company as a result of any liquidation of the Company with respect to the Founder Shares. The Sponsor
and each of the Founders hereby further waives, with respect to any Ordinary Shares and Founder Shares held by it, him or her, as applicable, any redemption rights it or he may have in connection with the consummation of an initial Business
Combination, including, without limitation, any such rights available in the context of a shareholder vote to approve such Business Combination or a shareholder vote to approve an amendment to the Charter that would affect the substance or timing of
the Company’s obligation to redeem 100% of the Ordinary Shares if the Company has not consummated an initial Business Combination within the time period set forth in the Charter or in the context of a tender offer made by the Company to
purchase Ordinary Shares (although the Sponsor and the Founders shall be entitled to redemption and liquidation rights with respect to any Ordinary Shares (other than the Founder Shares) they hold if the Company fails to consummate an initial
Business Combination within the required time period set forth in the Charter). 
 5. Lock-up;
Transfer Restrictions. 
 (a) The Sponsor and each Founder agree that they shall not Transfer any Founder Shares (the “Lock-up”) until the earlier of (i) one year after the completion of an initial Business Combination and (ii) the date following the completion of an initial Business Combination on which the
Company completes a liquidation, merger, share exchange or other similar transaction that results in all of the Company’s shareholders having the right to exchange their Ordinary Shares for cash, securities or other property (the “Lock-up Period”). Notwithstanding the foregoing, if, subsequent to an initial Business Combination, the closing price of the Ordinary Shares equals or exceeds $12.00 per share (as adjusted for share
splits, share capitalizations, reorganizations, recapitalizations and the like) for any 20 trading days within any 30-trading day period commencing at least 150 days after our initial Business Combination, the
Founder Shares shall be released from the Lock-up. 

  
 3 

 (b) The Sponsor and Founders agree that they shall not effectuate any Transfer of Private
Placement Warrants or Ordinary Shares underlying such warrants, until 30 days after the completion of an initial Business Combination. 

(c) Notwithstanding the provisions set forth in paragraphs 5(a) and (b), Transfers of the Founder Shares, Private Placement Warrants and
Ordinary Shares underlying the Private Placement Warrants are permitted (i) to the Company’s officers or directors, any affiliates or family members of any of the Company’s officers or directors, any members of the Sponsor or their
affiliates, or any affiliates of the Sponsor, or employees of or partners in Cerberus Capital Management, L.P. or any entities affiliated therewith, including by means of a forfeiture to the Company and a reissuance to such transferee; (ii) in
the case of an individual, by gift to a member of the individual’s immediate family or to a trust, the beneficiary of which is a member of one of the individual’s immediate family, an affiliate of such person or to a charitable
organization; (iii) in the case of an individual, by virtue of laws of descent and distribution upon death of the individual; (iv) in the case of an individual, pursuant to a qualified domestic relations order; (v) by private sales or
transfers made at or prior to the consummation of an initial Business Combination at prices no greater than the price at which the shares or warrants were originally purchased; (vi) by virtue of the Sponsor’s limited liability company
agreement upon dissolution of the Sponsor; (vii) in the event of the Company’s liquidation prior to the completion of an initial Business Combination; or (viii) in the event of completion of a liquidation, merger, share exchange or
other similar transaction which results in all of the Company’s shareholders having the right to exchange their Ordinary Shares for cash, securities or other property subsequent to the completion of an initial Business Combination;
provided, however, that in the case of clauses (i) through (vi) these permitted transferees must enter into a written agreement agreeing to be bound by these transfer restrictions. 

(d) During the period commencing on the date of the Underwriting Agreement and ending 180 days after such date (the
“Restriction Period”), the Sponsor and the Founders shall not, without the prior written consent of the Representatives, Transfer any Units, Ordinary Shares, Warrants or any securities convertible into, or
exercisable, or exchangeable for, Ordinary Shares owned by it, him or her, as applicable. The Sponsor and the Founders acknowledge and agree that, prior to the effective date of any release or waiver of the restrictions set forth in this paragraph 5
in respect of a director or officer of the Company, the Company shall announce the impending release or waiver by press release through a major news service at least two business days before the effective date of the release or waiver. Any release
or waiver granted shall only be effective two business days after the publication date of such press release. The provisions of this paragraph will not apply if the release or waiver is effected solely to permit a transfer not for consideration and
the transferee has agreed in writing to be bound by the same terms described in this Letter Agreement to the extent and for the duration that such terms remain in effect at the time of the transfer. Notwithstanding the provisions of this paragraph
5(d), Transfers of any Units, Ordinary Shares, Warrants or any securities convertible into, or exercisable, or exchangeable for, Ordinary Shares shall be permitted on the same basis as in clauses (ii) and (iii) of paragraph 5(c) above, provided that
the transferees of such securities must enter into a written agreement agreeing to be bound by the transfer restrictions set forth in this paragraph 5(d). Furthermore, it is understood and agreed that the issuance of any securities or profits
interests of the Sponsor that provide the recipient with the right to acquire securities of the Company shall not be prohibited by this paragraph 5(d) so long as such right shall not vest during the Restriction Period. 

  
 4 

 6. Remedies. The Sponsor and each of the Founders hereby agree and acknowledge that
(i) each of the Underwriters and the Company would be irreparably injured in the event of a breach by the Sponsor or such Founder of its or his obligations, as applicable under paragraphs 3, 4, 5, 7 and 14, (ii) monetary damages may not be an
adequate remedy for such breach and (iii) the non-breaching party shall be entitled to seek injunctive relief, in addition to any other remedy that such party may have in law or in equity, in the event of
such breach. 
 7. Payments by the Company. Except as disclosed in the Prospectus, none of the Sponsor, any affiliate of the Sponsor,
the Founders, any affiliate of the Founders nor any director or officer of the Company, shall receive from the Company any finder’s fee, reimbursement, consulting fee, monies in respect of any repayment of a loan or other compensation prior to,
or in connection with any services rendered in order to effectuate the consummation of the Company’s initial Business Combination (regardless of the type of transaction that it is). 

8. Entire Agreement. This Letter Agreement constitutes the entire agreement and understanding of the parties hereto in respect of the
subject matter hereof and supersedes all prior understandings, agreements, or representations by or among the parties hereto, written or oral, to the extent they relate in any way to the subject matter hereof or the transactions contemplated hereby.
This Letter Agreement may not be changed, amended, modified or waived (other than to correct a typographical error) as to any particular provision, except by a written instrument executed by all parties hereto. 

9. Assignment. No party hereto may assign either this Letter Agreement or any of its rights, interests, or obligations hereunder
without the prior written consent of the other parties. Any purported assignment in violation of this paragraph shall be void and ineffectual and shall not operate to transfer or assign any interest or title to the purported assignee. This Letter
Agreement shall be binding on the Sponsor, each of the Founders and each of their respective successors, heirs, personal representatives and assigns. 

10. Governing Law. This Letter Agreement shall be governed by and construed and enforced in accordance with the laws of the State of
New York, without giving effect to conflicts of law principles that would result in the application of the substantive laws of another jurisdiction. The parties hereto (i) all agree that any action, proceeding, claim or dispute arising out of,
or relating in any way to, this Letter Agreement shall be brought and enforced in the courts of New York City, in the State of New York, and irrevocably submit to such jurisdiction and venue, which jurisdiction and venue shall be exclusive and
(ii) waive any objection to such exclusive jurisdiction and venue or that such courts represent an inconvenient forum. 
 11.
Notices. Any notice, consent or request to be given in connection with any of the terms or provisions of this Letter Agreement shall be in writing and shall be sent by express mail or similar private courier service, by certified mail (return
receipt requested), by hand delivery or facsimile transmission. 
 12. Director and Officer Liability Insurance. The Company will
maintain an insurance policy or policies providing directors’ and officers’ liability insurance, and the Founders shall be covered by such policy or policies, in accordance with its or their terms, to the maximum extent of the coverage
available for any of the Company’s directors or officers. 

  
 5 

 13. Termination. This Letter Agreement shall terminate on the earlier of (i) the
expiration of the Lock-up Period and (ii) the liquidation of the Company; provided, however, that this Letter Agreement shall earlier terminate in the event that the Public Offering is not
consummated and closed by March 30, 2018. 
 14. Indemnification. In the event of the liquidation of the Trust Account, the
Sponsor (the “Indemnitor”) agrees to indemnify and hold harmless the Company against any and all loss, liability, claim, damage and expense whatsoever (including, but not limited to, any and all legal or other expenses
reasonably incurred in investigating, preparing or defending against any litigation, whether pending or threatened, or any claim whatsoever) to which the Company may become subject as a result of any claim by (i) any third party for services
rendered or products sold to the Company or (ii) a prospective target business with which the Company has entered into an acquisition agreement (a “Target”); provided, however, that such indemnification of
the Company by the Indemnitor shall apply only to the extent necessary to ensure that such claims by a third party for services rendered (other than the Company’s independent public accountants) or products sold to the Company or a Target do
not reduce the amount of funds in the Trust Account to below the lesser of (i) $10.00 per share of the Offering Shares and (ii) the actual amount per share of the Offering Shares held in the Trust Account as of the date of the liquidation of
the Trust Account, in each case less taxes payable, if less than $10.00 per share of the Offering Shares due to reductions in value of the trust assets and such indemnification shall not apply to any claims by a third party who executed a waiver of
any and all rights to seek access to the Trust Account (whether or not such agreement is enforceable) nor shall it apply to any claims under the Company’s indemnity of the Underwriters against certain liabilities, including liabilities under
the Securities Act of 1933, as amended. In the event that any such executed waiver is deemed to be unenforceable against such third party, the Indemnitor shall not be responsible for any liability as a result of any such third party claims. The
Indemnitor shall have the right to defend against any such claim with counsel of its choice reasonably satisfactory to the Company if, within 15 days following written receipt of notice of the claim to the Indemnitor, the Indemnitor notifies the
Company in writing that it shall undertake such defense. 
 15. Involvement in Future Blank Check Companies. Each Founder agrees not
to participate in the formation of, or become an officer or director of, any other blank check company (excluding existing affiliations), until the Company has entered into a definitive agreement with respect to an initial Business Combination or
the Company has failed to complete an initial Business Combination within the time period set forth in the Charter. 
 [Signature Page
Follows] 

  
 6 

			
	Sincerely,
	
	CERBERUS IRON HORSE HOLDINGS, LLC
		
	By:	 	 
	Name:	 	Stephen A. Feinberg
	Title:	 	Managing Member
	   

	Steven F. Mayer
	   

	Chan W. Galbato
	   

	Frank W. Bruno
	   

	Timothy M. Donahue
	   

	Mark W. Smith
	  

  

			
	Acknowledged and Agreed:
	
	IRON HORSE ACQUISITION CORP.
		
	By:	 	 
		 	Name: Steven F. Mayer
		 	Title: Chief Executive Officer

 [Signature Page to Letter Agreement]

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