Document:

EX-4.2

 Exhibit 4.2 

SPECIMEN CLASS A COMMON STOCK CERTIFICATE 
  

			
	 NUMBER C–[        ]
	  	[        ] SHARES
		
	 SEE REVERSE FOR CERTAIN DEFINITIONS
	  	CUSIP [        ]

 C5 ACQUISITION CORPORATION 

INCORPORATED UNDER THE LAWS OF THE STATE OF DELAWARE 

CLASS A COMMON STOCK 
 THIS CERTIFIES THAT
[     ] IS THE OWNER OF FULLY PAID AND NON-ASSESSABLE SHARES OF THE PAR VALUE OF $0.0001 EACH OF THE CLASS A COMMON STOCK OF 

C5 ACQUISITION CORPORATION 

(THE “CORPORATION”) 
 transferable
on the books of the Corporation in person or by duly authorized attorney upon surrender of this certificate properly endorsed. 
 The
Corporation will be forced to offer to redeem all of the shares of Class A common stock, par value of $0.0001 per share, of the Corporation (the “Class A Common Stock”) in connection with
an initial business combination or to redeem all of the shares of the Class A Common Stock if it is unable to complete a business combination by [            ] (unless extended
pursuant to, and in accordance with, the Corporation’s amended and restated certificate of incorporation (as further amended, supplemented or otherwise modified from time to time, the “Certificate of Incorporation”)), as
more fully described in the Corporation’s final prospectus, dated [            ], 2022. 

This certificate is not valid unless countersigned by Continental Stock Transfer & Trust Company, in its capacity as the transfer
agent, and registered by the registrar of the Corporation. 
 Witness the facsimile signature of its duly authorized officers. 

 

									
					
	By: 
	 	 	 		 	By:	 	 
		 	Name:	 		 		 	Name:
		 	Title:	 		 		 	Title:

 C5 ACQUISITION CORPORATION 

The Corporation will furnish without charge to each stockholder 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. 

This certificate and the shares represented thereby are issued and shall be held subject to all of the provisions of the Certificate of
Incorporation and resolutions of the board of directors of the Corporation providing for the issue of securities (copies of which may be obtained from the secretary of the Corporation), to all of which the holder of this certificate by acceptance
hereof assents. 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 right of survivorship and not as tenants in common	  		  	 
under Uniform Gifts to Minors Act

(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(S) OF ASSIGNEE(S)) 

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

shares of the capital stock represented by the within certificate, and does hereby irrevocably constitute and appoint Attorney to transfer the said shares
of capital stock on the books of the within named Corporation with full power of substitution in the premises. 
 Dated: _____________________ 

			
	Notice: The signature(s) 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 whatsoever.

  
 2 

 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 S.E.C. RULE 17Ad-15 UNDER
	THE SECURITIES EXCHANGE ACT OF 1934,
	AS AMENDED (OR ANY SUCCESSOR RULE).

 As more fully described in the Corporation’s final prospectus, dated
[            ], 2022, the holder(s) of this certificate shall be entitled to receive a pro rata portion of certain funds held in the trust account established in connection with the
Corporation’s initial public offering only in the event that (i) the holder(s) seek(s) to redeem for cash his, her or its respective shares of the Class A Common Stock in connection with a tender offer (or proxy solicitation, solely
in the event the Corporation seeks stockholder approval of the proposed initial business combination) setting forth the details of a proposed initial business combination, (ii) the Corporation redeems the shares of the Class A Common Stock
sold in its initial public offering in connection with a stockholder vote to amend the Certificate of Incorporation to modify the substance or timing of the Corporation’s obligation to allow redemptions in connection with an initial business
combination or to redeem one-hundred percent (100%) of the Class A Common Stock if it does not consummate an initial business combination by
[            ] (or a later date, if such period is extended pursuant to, and in accordance with, the Certificate of Incorporation) or with respect to any other material provision relating
to stockholders’ rights or pre-initial business combination activity or (iii) the Corporation redeems the shares of the Class A Common Stock sold in its initial public offering and liquidates
because it does not consummate an initial business combination by [            ] (or a later date, if such period is extended pursuant to, and in accordance with, the Certificate of
Incorporation). In no other circumstances shall the holder(s) have any right or interest of any kind in or to the trust account. 

  
 3EX-4.3

 Exhibit 4.3 

SPECIMEN WARRANT CERTIFICATE 
  

			
	 NUMBER W–[    ] 

	  	[             ] WARRANTS
		
	 SEE REVERSE FOR CERTAIN DEFINITIONS
	  	CUSIP [             ]

 WARRANTS 

THIS WARRANT SHALL BE NULL AND VOID IF NOT EXERCISED PRIOR TO THE 

EXPIRATION OF THE EXERCISE PERIOD PROVIDED FOR 

IN THE WARRANT AGREEMENT DESCRIBED BELOW 

C5 ACQUISITION CORPORATION 

Incorporated Under the Laws of the State of Delaware 

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 shares of Class A common stock, $0.0001 par value per share
(“Common Stock”), of C5 Acquisition Corporation, a Delaware corporation (the “Company”). Each whole 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 shares of Common Stock as set forth below, at the exercise price (the “Warrant Price”) as
determined pursuant to the [Public][Private] Warrant Agreement, payable in lawful money of the United States of America upon surrender of this Warrant Certificate and payment of the Warrant Price (or through “cashless
exercise” as provided for in the [Public][Private] Warrant Agreement) at the office or agency of the Warrant Agent referred to below, subject to the conditions set forth herein and in the [Public][Private] Warrant Agreement. Defined
terms used in this Warrant Certificate but not defined herein shall have the meanings given to them in the [Public][Private] Warrant Agreement. 

Each whole Warrant is initially exercisable for one fully paid and non-assessable share of Common
Stock. No fractional shares will be issued upon exercise of any Warrant. If, upon the exercise of Warrants, a holder would be entitled to receive a fractional interest in a share of Common Stock, the Company will, upon exercise, round down to the
nearest whole number of the number of shares of Common Stock to be issued to the holder of the Warrant. The number of shares of Common Stock issuable upon exercise of the Warrants is subject to adjustment upon the occurrence of certain events as set
forth in the [Public][Private] Warrant Agreement. 
 The initial Warrant Price per share of Common Stock for any Warrant is equal to $11.50
per share. The Warrant Price is subject to adjustment upon the occurrence of certain events as set forth in the [Public][Private] 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 null and void. The Warrants may be redeemed, subject to certain conditions, as set forth in the [Public][Private] Warrant Agreement. 

 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 [Public][Private] Warrant Agreement. 

This Warrant Certificate shall be governed by and construed in accordance with the internal laws of the State of New York. 

 

			
	 C5 ACQUISITION
CORPORATION

 
			
		
	 By:
	 	 
		 	 Name:

		 	 Title:

  

			
	 CONTINENTAL STOCK TRANSFER & TRUST COMPANY, as Warrant Agent

 
			
		
	 By:
	 	 
		 	 Name:

		 	 Title:

 [REVERSE OF WARRANT CERTIFICATE] 

The Warrants evidenced by this Warrant Certificate are part of a duly authorized issue of Warrants entitling the holder on exercise to receive
[                ] shares of Common Stock and are issued or to be issued pursuant to the [public][private] warrant agreement, dated as of [__], 2022 (as amended,
supplemented or otherwise modified from time to time, the “Warrant Agreement”), by and between the Company to Continental Stock Transfer & Trust Company, a New York limited purpose trust company, as warrant agent (or
successor warrant agent) (in such capacity, 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, respectively) 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 Warrant Price
as specified in the Warrant Agreement (or through “cashless exercise” as provided for in the Warrant Agreement) at the designated 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 (a)(i) a registration statement covering the issuance of the shares of Common Stock to be issued upon exercise is effective under the Securities Act and (ii) a prospectus thereunder relating to the shares of Common Stock is current or
(b) the shares of Common Stock to be issued upon exercise may be issued pursuant to an exemption from registration under the Securities Act, including through “cashless exercise” as provided for in the Warrant Agreement. 

The Warrant Agreement provides that, upon the occurrence of certain events the number of shares of Common Stock issuable upon exercise of the
Warrants and the Warrant Price 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 a share of Common Stock, the
Company shall, upon exercise, round down to the nearest whole number of shares of Common Stock to be issued to the holder of the Warrant. 

Warrant Certificates, when surrendered at the designated 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. 

 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 third party 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 and 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 stockholder of the Company. 

 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
[            ] shares of Common Stock and herewith tenders payment for such shares of Common Stock to the order of C5 Acquisition Corporation (the “Company”) in the
amount of $[         ] in accordance with the terms hereof. The undersigned requests that a certificate for such shares of Common Stock be registered in the name of
[        ], whose address is [        ] and that such shares of Common Stock be delivered to [        ] whose address is
[        ]. If said number of shares of Common Stock is less than all of the shares of Common Stock purchasable hereunder, the undersigned requests that a new Warrant Certificate representing the remaining
balance of such shares of Common Stock be registered in the name of [            ], whose address is [        ] and that such shares of Common Stock
be delivered to [        ] whose address is [        ]. 

In the event that the Warrant is to be exercised on a “cashless basis” pursuant to subsection 3.3.1(b) of the Warrant Agreement, the
number of shares of Common Stock that this Warrant is exercisable for shall be determined in accordance with subsection 3.3.1(b) 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 shares of Common Stock that this Warrant is exercisable for shall be determined in accordance with Section 7.4 of the Warrant Agreement.]1 

In the event that the Warrant may be exercised, to the extent allowed by the Warrant Agreement, through cashless exercise, (i) the number
of shares of Common Stock 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 shares of Common Stock. If said number of shares of Common Stock
is less than all of the shares of Common Stock purchasable hereunder (after giving effect to the cashless exercise), the undersigned requests that a new Warrant Certificate representing the remaining balance of such shares of Common Stock be
registered in the name of [            ], whose address is [         ] and that such shares of Common Stock be delivered to
[        ] whose address is [        ]. 
 [Signature Page
Follows] 
 Date:                , 202[    ] 

 

	1 	 To be included in the public warrant only. 

 
	
	 
	 (Signature)

	
	
	 
	 (Address)

	
	 
	 (Tax Identification Number)

  

			
	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 RULE 17Ad-15 UNDER THE SECURITIES EXCHANGE ACT OF 1934, AS AMENDED (OR ANY SUCCESSOR RULE).

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