Document:

Exhibit 4.2

 

	NUMBER	 	NUMBER
	 	 	C-
	 	 	SHARES
	 	 	SEE REVERSE FOR CERTAIN DEFINITIONS
	 	 	CUSIP 53627A 109

 

Lionheart IV Corp

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

 

Lionheart IV Corp

(THE “COMPANY”)

 

transferable on the books of the Company in
person or by duly authorized attorney upon surrender of this certificate properly endorsed.

 

The Company will be forced
to redeem all of its shares of Class A common stock if it is unable to complete a business combination by [•], 2023 (or such later
date as the Company’s amended and restated certificate of incorporation may be amended to provide for), all as more fully described
in the Company’s final prospectus dated [•], 2021.

 

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

 

Witness the seal of the
Company and the facsimile signatures of its duly authorized officers.

 

	 	
    [Corporate Seal] Delaware 
	 
	 	 	 
	 	 	 
	Chief Executive Officer	 	Chief Financial Officer

 

     

     

    

 

Lionheart IV Corp

 

The Company will furnish
without charge to each stockholder who so requests the powers, designations, preferences and relative, participating, optional or other
special rights of each class of stock or series thereof of the Company 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 the provisions of the Company’s
amended and restated certificate of incorporation and all amendments thereto and resolutions of the Board of Directors providing for the
issue of securities (copies of which may be obtained from the secretary of the Company), 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 hereby irrevocably constitutes and appoints

 

Attorney to transfer
the said stock on the books of the within named Company 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 WHATEVER.

 

	Signature(s) Guaranteed:	 
	 	 
	By	 
	 	 

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 (OR ANY SUCCESSOR RULE).

 

    2 

     

    

 

In each case, as more
fully described in the Company’s final prospectus dated [•], 2021, 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 its initial public offering only
in the event that (i) the Company redeems the shares of Class A common stock sold in the Company’s initial public offering and liquidates
because it does not consummate an initial business combination by [•], 2023 (or such later date as the Company’s amended and
restated certificate of incorporation may be amended to provide for), (ii) the Company offers to redeem the shares of Class A common stock
sold in its initial public offering in connection with a stockholder vote to amend the Company’s amended and restated certificate
of incorporation (A) to modify the substance or timing of the ability of holders of Class A common stock sold in the Company’s initial
public offering to seek redemption in connection with the Company’s initial business combination or the Company’s obligation
to redeem 100% of such Class A common stock if it does not consummate an initial business combination by [•], 2023 or (B) with respect
to any other provision relating to stockholders’ rights or pre-initial business combination activity, and the holder(s) of this
certificate elects to have the shares of Common Stock held by him, her or it redeemed pursuant to that offer, or (iii) if the holder(s)
seek(s) to redeem for cash his, her or its respective shares of Class A common stock in connection with a tender offer (or proxy solicitation,
solely in the event the Company seeks stockholder approval of the proposed initial business combination) setting forth the details of
a proposed initial business combination. In no other circumstances shall the holder(s) have any right or interest of any kind in or to
the trust account.

 

    3Exhibit 4.3

 

[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

Lionheart IV Corp

Incorporated Under the Laws of the State of
Delaware

 

CUSIP 53627A 117

 

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 shares of Class A common stock, $0.0001 par value per share (“Common Stock”), of Lionheart
IV Corp, 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 “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 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 the number of shares of Common Stock to be issued to the Warrant holder. The
number of shares of Common Stock 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 share of Common Stock 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.

 

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.

 

    

    

    

 

	 	LIONHEART IV CORP

 

	 	By:	 

	 	Name:
	 	Title:
	 	 
	 	 
	 	CONTINENTAL
    STOCK TRANSFER & TRUST COMPANY, as Warrant Agent

 

	 	By:	 

	 	Name:
	 	Title:

 

[Signature Page to Warrant Certificate]

 

    

    

    

 

[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 shares of Common
Stock and are issued or to be issued pursuant to a Warrant Agreement dated as of [●], 2021 (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, 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 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 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, 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 shares of Common Stock 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 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 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.

 

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 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 Lionheart IV Corp (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 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 shares of Common Stock 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 Warrant, Working Capital Warrant, or Post-IPO Warrant that is to be exercised on a “cashless” basis pursuant
to subsection 3.3.1(c) 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(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 shares
of Common Stock 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 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 Warrant Certificate be delivered to , whose
address is .

 

[Signature Page Follows]

 

    

    

    

 

	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)).

 

    

    

    

 

Exhibit B

 

Restrictive Legends

 

Securities held by sponsor:

 

THE SECURITIES REPRESENTED HEREBY HAVE NOT BEEN REGISTERED UNDER THE
SECURITIES ACT OF 1933, AS AMENDED (THE “SECURITIES 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 UNDER THE SECURITIES ACT OR SUCH LAWS OR AN EXEMPTION FROM REGISTRATION UNDER THE SECURITIES ACT AND SUCH LAWS WHICH, IN
THE OPINION OF COUNSEL FOR THIS CORPORATION, IS AVAILABLE.

 

THE SECURITIES REPRESENTED BY THIS CERTIFICATE ARE SUBJECT TO LOCKUP
PURSUANT TO A PRIVATE PLACEMENT SECURITIES SUBSCRIPTION AGREEMENT BETWEEN LIONHEART IV CORP AND LIONHEART EQUITIES, LLC AND MAY ONLY
BE OFFERED, SOLD, TRANSFERRED, PLEDGED OR OTHERWISE DISPOSED DURING THE TERM OF THE LOCKUP PURSUANT TO THE TERMS SET FORTH IN THE SUBSCRIPTION
AGREEMENT.

 

Securities
held by the underwriters:

 

THE SECURITIES REPRESENTED HEREBY HAVE NOT BEEN REGISTERED UNDER THE
SECURITIES ACT OF 1933, AS AMENDED (THE “SECURITIES 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 UNDER THE SECURITIES ACT OR SUCH LAWS OR AN EXEMPTION FROM REGISTRATION UNDER THE SECURITIES ACT AND SUCH LAWS WHICH, IN
THE OPINION OF COUNSEL FOR THIS CORPORATION, IS AVAILABLE.

 

THE SECURITIES REPRESENTED BY THIS CERTIFICATE
ARE SUBJECT TO LOCKUP PURSUANT TO A PRIVATE PLACEMENT UNIT SUBSCRIPTION AGREEMENT AMONG LIONHEART IV CORP, NOMURA SECURITIES INTERNATIONAL, INC.
AND NORTHLAND SECURITIES, INC. AND MAY ONLY BE OFFERED, SOLD, TRANSFERRED, PLEDGED OR OTHERWISE DISPOSED DURING THE TERM OF
THE LOCKUP PURSUANT TO THE TERMS SET FORTH IN THE UNIT SUBSCRIPTION AGREEMENT.

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