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Exhibit 4.1    
    

[SPECIMEN
UNIT CERTIFICATE] 

[THE
SECURITIES REPRESENTED BY THIS CERTIFICATE HAVE NOT BEEN REGISTERED UNDER THE SECURITIES ACT OF 1933, AS AMENDED. THE SECURITIES MAY NOT BE SOLD, OFFERED FOR SALE, PLEDGED OR
HYPOTHECATED IN THE ABSENCE OF AN EFFECTIVE REGISTRATION STATEMENT AS TO THE SECURITIES UNDER SAID ACT OR AN OPINION OF COUNSEL SATISFACTORY TO THE CORPORATION THAT SUCH REGISTRATION IS NOT REQUIRED. 

THE
SECURITIES REPRESENTED BY THIS UNIT CERTIFICATE (INCLUDING THE UNDERLYING COMMON STOCK, WARRANT AND THE SECURITIES ISSUABLE UPON EXERCISE OF THE UNDERLYING WARRANT) ARE SUBJECT TO ADDITIONAL
RESTRICTIONS ON TRANSFER AND OTHER AGREEMENTS SET FORTH IN A SECURITIES ESCROW AGREEMENT, A LETTER AGREEMENT AND IN THE WARRANT AGREEMENT](1) 

	NUMBER

U-	 	                         UNITS

SEE
REVERSE FOR

CERTAIN DEFINITIONS 

THIRD
WAVE ACQUISITION CORP. 

CUSIP:
             

UNITS
CONSISTING OF ONE SHARE OF COMMON STOCK AND

ONE WARRANT TO PURCHASE ONE SHARE OF COMMON STOCK 

        THIS
CERTIFIES THAT                        is the owner
of                        Units. 

        Each
Unit ("Unit") consists of one (1) share of common stock, par value $0.001 per share (the "Common Stock"), of Third Wave Acquisition Corp., a Delaware corporation (the
"Corporation"), and one (1) warrant (the "Warrant"). The Warrant entitles the holder to purchase one (1) share of Common Stock for $7.00 per share (subject to adjustment pursuant to the
Warrant Agreement, as described below). The Warrant will become exercisable on the later of (i) the completion of a Business Combination (as such term is defined in the Warrant Agreement), and
(ii) one year after the date of the consummation of the Public Offering (as defined in the Warrant Agreement), and will expire unless exercised before 5:00 p.m., New York City time, five
years after the date of the consummation of the Public Offering, or earlier upon redemption (the "Expiration Date"). The Common Stock and the Warrant comprising the Units represented by this
certificate are not transferable separately prior to five (5) business days (or as soon as practicable thereafter) following the earliest to occur of (x) the expiration or termination of
the underwriters' over-allotment option, (y) its exercise in full and (z) the underwriters' determination not to exercise all or any remaining portion of the
over-allotment option, subject in each case to the Corporation having filed a Current Report on Form 8-K with the Securities and Exchange Commission, containing an
audited balance sheet reflecting the Corporation's receipt of the gross proceeds of the Public Offering and issuing a press release announcing when such separate trading will begin. The terms of the
Warrants are governed by the Second Amended and Restated Warrant Agreement (the "Warrant Agreement"), dated as of February 14, 2008, between the Corporation and American Stock Transfer &
Trust Company (the "Warrant Agent") and are subject to the terms and provisions contained therein, all of which terms and provisions the holder of this certificate consents to by acceptance hereof.
The terms of the Common Stock are governed by the certificate of incorporation of the Corporation, as such certificate of incorporation may be amended from time to time. Copies of the Warrant
Agreement are on file at the office of the Warrant Agent at 59 Maiden Lane, New York, New York 10038 and are available to any Warrant holder on written request and without cost. 

	(1)
	To
be included only in Unit Certificates representing Units sold in Founder Units and Co-Investment Units (each as defined in the Warrant Agreement). 

1

 

        This
certificate is not valid unless countersigned by the Transfer Agent and Registrar of the Corporation. 

        Witness
the facsimile seal of the Corporation and the facsimile signature of its duly authorized officers. 

THIRD
WAVE ACQUISITION CORP.

CORPORATE

DELAWARE

SEAL

2007 

   

	By:	    
 President	 	 	    
 Secretary

   

	Countersigned By:	    
 Transfer Agent and Registrar	 	 	 

2

 
THIRD
WAVE ACQUISITION CORP. 

The
Corporation will furnish without charge to each unit holder who so requests, a statement of the powers, designations, preferences and relative, participating, optional or other special rights of
each class of stock or series thereof of the Corporation and the qualifications, limitations, or restrictions of such preferences and/or rights. 

The
following abbreviations, when used in the inscription on the face of this certificate, shall be construed as though they were written out in full according to applicable laws or regulations: 

	TEN COM—	as tenants in common	 	UNIF GIFT MIN ACT—              Custodian             
	

TEN ENT—	

as tenants by the entireties	
 	

                             (Cust)
              (Minor)
	

JT TEN—	

as joint tenants with	
 	

                                         
       under Uniform Gifts to
	 	right of survivorship and	 	                                        
        Minors Act                   
	 	not as tenants in common	 	(State)

        Additional
abbreviations may also be used though not in the above list. 

        FOR
VALUE RECEIVED,                                HEREBY SELLS, ASSIGNS AND TRANSFERS UNTO

(PLEASE
INSERT SOCIAL SECURITY OR OTHER IDENTIFYING NUMBER OF ASSIGNEE) 

	

	

	

	

(PLEASE PRINT OR TYPEWRITE NAME AND ADDRESS, INCLUDING ZIP CODE, OF ASSIGNEE)
	

	

	

    
	
 	

UNITS REPRESENTED BY THE WITHIN
	CERTIFICATE, AND DOES HEREBY IRREVOCABLY CONSTITUTE AND APPOINT                    ATTORNEY TO TRANSFER THE SAID UNITS ON
THE BOOKS OF THE WITHIN NAMED CORPORATION WITH FULL POWER OF SUBSTITUTION IN THE PREMISES.

	    	 	 
	

DATED:	
 	

    

NOTICE:
The signature to this assignment must correspond with the name as written upon the face of the certificate in every particular, without alteration or enlargement or any change whatever. 

Signature(s)
Guaranteed: 

THE
SIGNATURE(S) MUST 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 SECURITIES AND EXCHANGE COMMISSION

RULE 17Ad-15). 

3

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Exhibit 4.3    
    

[SPECIMEN
WARRANT CERTIFICATE] 

[THE
SECURITIES REPRESENTED BY THIS CERTIFICATE ARE SUBJECT TO THE TERMS AND CONDITIONS CONTAINED IN A SECURITIES ESCROW AGREEMENT (THE "AGREEMENT") AND MAY NOT BE OFFERED, SOLD,
TRANSFERRED, PLEDGED OR OTHERWISE DISPOSED DURING THE TERM OF THE ESCROW PERIOD (AS DEFINED IN THE AGREEMENT) AND ARE ALSO SUBJECT TO ADDITIONAL RESTRICTIONS ON TRANSFER AND OTHER AGREEMENTS SET FORTH
IN A LETTER AGREEMENT AND A WARRANT AGREEMENT, AS AMENDED. 

THE
SECURITIES REPRESENTED BY THIS CERTIFICATE HAVE NOT BEEN REGISTERED UNDER THE SECURITIES ACT OF 1933, AS AMENDED (THE "ACT"), OR ANY STATE SECURITIES LAWS AND NEITHER THE SECURITIES NOR ANY
INTEREST THEREIN MAY BE OFFERED, SOLD, TRANSFERRED, PLEDGED OR OTHERWISE DISPOSED OF EXCEPT PURSUANT TO AN EFFECTIVE REGISTRATION STATEMENT COVERING THESE SECURITIES UNDER THE ACT OR SUCH LAWS OR AN
EXEMPTION FROM REGISTRATION UNDER THE ACT AND SUCH LAWS WHICH, IN THE OPINION OF COUNSEL FOR THIS CORPORATION, IS AVAILABLE.](1) 

	No.            	 	CUSIP No.                        

THIS
WARRANT WILL BE VOID IF NOT EXERCISED PRIOR TO

5:00 P.M. NEW YORK CITY TIME,                        , 2013 

THIRD WAVE ACQUISITION CORP.

Warrant
Certificate evidencing 

Warrants
to Purchase Common Stock, par value $0.001, as described herein. 

THIS
CERTIFIES THAT, for value received                        , or its registered assigns, is the registered holder of a Warrant or
Warrants expiring                        , 2013 (the "Warrant") to purchase one
fully paid and non-assessable share of Common Stock, par value $0.001 per share (the "Shares"), of Third Wave Acquisition Corp., a Delaware corporation (the "Company"), for each Warrant
evidenced by this Warrant Certificate. The Warrant entitles the holder thereof to purchase from the Company, commencing on the later of (i) the completion of a Business Combination, and
(ii)                         , 2009 [one year from the consummation of the Public Offering (as defined
in the Warrant Agreement)],
such number of Shares of the Company at the price of $7.00 per share, upon surrender of this Warrant Certificate accompanied by the annexed duly executed subscription form and payment of the Warrant
Price at the office or agency of American Stock Transfer & Trust Company (the "Warrant Agent") (such payment to be made by check payable to the Warrant Agent), but only subject to the
conditions set forth herein and in the Warrant Agreement (as defined below); provided, however, in lieu
of the payment of the Warrant Price, a Registered Holder (as defined in the Warrant Agreement) of a Warrant shall have the right (but not the obligation) to convert any exercisable but unexercised
Warrants into that number of shares of Common Stock equal to the quotient obtained by dividing (x) the Value of the Warrants being exercised by (y) the Current Market Value. The "Value"
of the Warrants being exercised shall equal the amount derived from subtracting (a)(i) the Warrant Price multiplied by (ii) the number of shares of Common Stock issuable upon exercise of
the Warrants being converted from (b)(1) the Current Market Value of a share of Common Stock multiplied by (2) the number of shares of Common Stock issuable upon exercise of the Warrants
being converted; provided that if the resulting quotient contains a fraction, such quotient will be rounded down to the nearest whole number. As used herein, the term "Current Market Value" per share
of Common Stock at any date shall mean the average last sales price of the Common Stock for the ten (10) trading days ending on the third trading day prior to the date on which the Warrant
Agent receives notice of the Registered Holder's exercise of the Conversion Right in the principal trading market for the Common Stock as reported by any national securities exchange or quoted on the
FINRA OTC Bulletin Board (or its successor entity), as the case may be; provided, that if the fair market value of the Common Stock cannot be so
determined, the "Current Market Value" per share shall be determined by the Board of Directors of the Company, in good faith. The Warrant Agreement provides that upon the occurrence of certain events
the Warrant Price and the number of Warrant Shares purchasable hereunder, set forth on the face hereof, may, subject to certain conditions, be adjusted.
The term "Warrant Price" as used in this Warrant Certificate refers to the price per Share at which Shares may be purchased at the time the Warrant is exercised. 

	(1)
	To
be included only in Warrant Certificates representing Private Warrants. 

1

 

        This
Warrant Certificate is issued under and in accordance with the Second Amended and Restated Warrant Agreement, dated as of February 14, 2008 (the "Warrant Agreement"), between
the Company and the Warrant Agent and is subject to the terms and provisions contained in the Warrant Agreement, all of which terms and provisions the holder of this Warrant Certificate and the
beneficial owners of the Warrants represented by this Warrant Certificate consent by acceptance hereof. Copies of the Warrant Agreement are on file and can be inspected at the office of the Warrant
Agent and at the office of the Company at 591 West Putnam Avenue, Greenwich, Connecticut 06830. Capitalized terms used but not defined herein shall have the respective meanings ascribed to them in the
Warrant Agreement. 

        No
fraction of a Share will be issued upon any exercise of a Warrant. If the holder of a Warrant would be entitled to receive a fraction of a Share upon any exercise of a Warrant, the
Company shall, upon such exercise, round down to the nearest whole number the number of Shares to be issued to such holder. 

        Upon
any exercise of the Warrant for less than the total number of full Shares provided for herein, there shall be issued to the Registered Holder hereof or its assignee a new Warrant
Certificate covering the number of Shares for which the Warrant has not been exercised. 

        Warrant
Certificates, when surrendered at the office or agency of the Warrant Agent by the Registered Holder hereof in person or by 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 and
evidencing in the aggregate a like number of Warrants. 

        Upon
due presentment for registration of transfer of the Warrant Certificate at the office or agency 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 in exchange for this Warrant Certificate, subject to the limitations provided in the Warrant Agreement,
without charge except for any applicable tax or other governmental charge. 

        The
Company and the Warrant Agent may deem and treat the Registered Holder as the absolute owner 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 Registered Holder, and for all other purposes, and neither the Company nor the Warrant Agent shall be
affected by any notice to the contrary. 

        This
Warrant does not entitle the Registered Holder to any of the rights of a stockholder of the Company. 

        [The
Company reserves the right to call, at its option, the Warrant at any time prior to its exercise, with a notice of call in writing to the holders of record of the
Warrant, giving thirty (30) days prior written notice of such call at any time after the Warrant becomes exercisable if the last sale price of the Shares has been at least $14.25 per share (the
"Trigger Price") on any twenty (20) trading days within any thirty (30) trading day period ending on the third business day prior to the date on which notice of such call is given (the
"Measurement Period"). The Warrant may not be called unless the Warrant and the Shares are covered by an effective registration statement and a current prospectus from the beginning of the Measurement
Period through the date fixed for the call. The call price of the Warrants is to be $0.01 per Warrant. Any Warrant either not exercised or tendered back to the Company by the end of the date specified
in the notice of call shall be canceled on the books of the Company and have no further value except for the $0.01 call price. The Trigger Price is subject to adjustments as provided in the Warrant
Agreement.](2) 

	(2)
	To
be included only in Warrant Certificates representing Warrants sold in the Company's public offering. 

2

 

        THIS
WARRANT CERTIFICATE AND ALL RIGHTS HEREUNDER AND UNDER THE WARRANT AGREEMENT SHALL BE GOVERNED BY AND INTERPRETED AND CONSTRUED IN ACCORDANCE WITH, THE LAWS OF THE STATE OF NEW YORK
APPLICABLE TO CONTRACTS EXECUTED IN AND TO BE PERFORMED IN THAT STATE, INCLUDING, WITHOUT LIMITATION, SECTIONS 5-1401 AND 5-1402 OF THE NEW YORK GENERAL OBLIGATIONS LAW AND THE
NEW YORK CIVIL PRACTICE LAWS AND RULES 327(B). 

        This
Warrant Certificate shall not be entitled to any benefit under the Warrant Agreement or be valid or obligatory for any purpose, and no Warrant evidenced hereby may be exercised,
unless this Warrant Certificate has been countersigned by the manual or facsimile signature of the Warrant Agent. 

        IN
WITNESS WHEREOF, the Company has caused this instrument to be duly executed. 

Dated
as of                        , 2007 

	 	 	THIRD WAVE ACQUISITION CORP.
	

 	
 	
By:	

    

	 	 	Name:  Barry S. Sternlicht

Title:    Chief Executive Officer

AMERICAN
STOCK TRANSFER & TRUST COMPANY 

	By:	 	    
 Authorized Officer	 

3

 
SUBSCRIPTION
FORM

To Be Executed by the Registered Holder in Order to Exercise Warrants 

The
undersigned Registered Holder irrevocably elects to exercise the right, represented by this Warrant Certificate, to
purchase                        shares of Common Stock and herewith makes payment of the
Exercise Price by [surrendering                        Warrants represented by this Warrant Certificate (with a "Value" of
$                        based on a "Current Market Value" of
$                        )] [paying
$                        in cash], in accordance with the terms of the Warrant Agreement. 

The
undersigned requests that certificates for such shares of Common Stock be registered in the name of: 

(PLEASE
TYPE OR PRINT NAME AND ADDRESS) 

(SOCIAL
SECURITY OR TAX IDENTIFICATION NUMBER) 

and
be delivered to 

PLEASE
PRINT OR TYPE NAME AND ADDRESS) 

and,
if such number of Warrants shall not be all the Warrants evidenced by this Warrant Certificate, that a new Warrant Certificate for the balance of such Warrants be registered in the name of, and
delivered to, the Registered Holder at the address stated below: 

Dated:

	 	 	(SIGNATURE)
	

 	
 	

(ADDRESS)
	

 	
 	

(TAX IDENTIFICATION NUMBER)

THE
SIGNATURE(S) MUST 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 SECURITIES AND EXCHANGE COMMISSION RULE 17Ad-15). 

4

 
ASSIGNMENT

To Be Executed by the Registered Holder in Order to Assign Warrants 

For
Value Received,                        hereby sells, assigns, and transfers unto 

(PLEASE
TYPE OR PRINT NAME AND ADDRESS) 

(SOCIAL
SECURITY OR TAX IDENTIFICATION NUMBER) 

                                of
the Warrants represented by this Warrant Certificate, and hereby irrevocably constitutes and
appoints                        Attorney to transfer this Warrant Certificate on the books of the Company, with full power of
substitution in the premises. 

Dated:

	 	 	(SIGNATURE)

THE
SIGNATURE(S) MUST 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 SECURITIES AND EXCHANGE COMMISSION RULE 17Ad-15). 

5

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Exhibit 4.3

Source: [{"source": "alea-institute/alea-institute/kl3m-data-edgar-agreements/train-00136-of-00352.parquet"}, [{"source": "alea-institute/alea-institute/kl3m-data-edgar-agreements/train-00136-of-00352.parquet"}]]