Exhibit
4.3


 





NEITHER
THIS SECURITY NOR THE SECURITIES FOR WHICH THIS SECURITY IS EXERCISABLE HAVE BEEN REGISTERED WITH THE SECURITIES AND EXCHANGE
COMMISSION OR THE SECURITIES COMMISSION OF ANY STATE IN RELIANCE UPON AN EXEMPTION FROM REGISTRATION UNDER THE SECURITIES ACT
OF 1933, AS AMENDED (THE “SECURITIES ACT”), AND, ACCORDINGLY, MAY NOT BE OFFERED OR SOLD EXCEPT PURSUANT TO AN EFFECTIVE
REGISTRATION STATEMENT UNDER THE SECURITIES ACT OR PURSUANT TO AN AVAILABLE EXEMPTION FROM, OR IN A TRANSACTION NOT SUBJECT TO,
THE REGISTRATION REQUIREMENTS OF THE SECURITIES ACT AND IN ACCORDANCE WITH APPLICABLE STATE SECURITIES LAWS.


 


SONNET
BIOTHERAPEUTICS HOLDINGS, INC.


 


WARRANT
TO PURCHASE COMMON STOCK


 


Warrant
No.: Spin-Off Entity Warrant 1


Number
of Shares of Common Stock: 186,161


Date
of Issuance: April 1, 2020 (“Issuance Date”)


Initial
Exercise Date: September 28, 2020


 


Sonnet
BioTherapeutics Holdings, Inc., a company organized under the laws of Delaware (the “Company”), hereby certifies
that, for good and valuable consideration, the receipt and sufficiency of which are hereby acknowledged, Amergent Hospitality
Group, Inc., the registered holder hereof or its permitted assigns (the “Holder”), is entitled, subject to
the terms set forth below, to purchase from the Company, at the Exercise Price (as defined below) then in effect, at any time
on or after the date set forth above (the “Initial Exercise Date”) and on or prior to 5:00 p.m. (New York City
time) on April 1, 2025 (the “Expiration Date”) but not thereafter 186,161 fully paid non-assessable shares
of Common Stock (as defined below), subject to adjustment as provided herein (the “Warrant Shares”). Except
as otherwise defined herein, capitalized terms in this Warrant to Purchase Common Stock (including any Warrants to Purchase Common
Stock issued in exchange, transfer or replacement hereof, this “Warrant”), shall have the meanings set forth
in Section 12. This Warrant is being issued pursuant to that certain that certain Agreement and Plan of Merger, dated as of October
10, 2019.


 




    	 



    	 



    

 


1. EXERCISE
OF WARRANT.


 


(a) Mechanics
of Exercise. Subject to the terms and conditions hereof (including, without limitation, the limitations set forth in Section
1(f)), this Warrant may be exercised by the Holder on or after the Initial Exercise Date and on or before the Expiation Date,
in whole or in part (but not as to fractional shares), by delivery (whether via facsimile, electronic mail or otherwise) of a
written notice, in the form attached hereto as Exhibit A (the “Exercise Notice”), of the Holder’s
election to exercise this Warrant. Within one (1) Trading Day following the delivery of the Exercise Notice, the Holder shall
make payment to the Company of an amount equal to the Exercise Price in effect on the date of such exercise multiplied by the
number of Warrant Shares as to which this Warrant is being exercised (the “Aggregate Exercise Price”) in cash
by wire transfer of immediately available funds (a “Cash Exercise”) or, if the provisions of Section 1(d) are
applicable, by notifying the Company that this Warrant is being exercised pursuant to a Cashless Exercise (as defined in Section
1(d)). The Holder shall not be required to deliver the original Warrant in order to effect an exercise hereunder, nor shall any
ink-original signature or medallion guarantee (or other type of guarantee or notarization) with respect to any Exercise Notice
be required, provided, that in the event of an exercise of this Warrant for all Warrant Shares then issuable hereunder, this Warrant
is surrendered to the Company by the second (2nd) Trading Day following the date on which the Company has received each of the
Exercise Notice and, if this Warrant is being exercise pursuant to a Cash Exercise, the Aggregate Exercise Price. Execution and
delivery of the Exercise Notice with respect to less than all of the Warrant Shares shall have the same effect as cancellation
of the original Warrant and issuance of a new Warrant evidencing the right to purchase the remaining number of Warrant Shares.
On or before the third (3rd) Trading Day following the date on which the Holder has delivered the applicable Exercise
Notice, the Company shall transmit by facsimile or electronic mail an acknowledgment of confirmation of receipt of the Exercise
Notice, in the form attached to the Exercise Notice, to the Holder and the Company’s transfer agent (the “Transfer
Agent”). So long as the Holder delivers the Aggregate Exercise Price (or notice of a Cashless Exercise) on or prior
to the first (1st) Trading Day following the date on which the Exercise Notice has been delivered to the Company, then on or prior
to the fifth (5th) Trading Day (the “Share Delivery Date”), the Company shall (X) if the Warrant
Shares have been registered for resale under the Securities Act of 1933, and provided that the Transfer Agent is participating
in The Depository Trust Company (“DTC”) Fast Automated Securities Transfer Program, credit such aggregate number
of Warrant Shares to which the Holder is entitled pursuant to such exercise to the Holder’s or its designee’s balance
account with DTC through its Deposit / Withdrawal At Custodian system, or (Y) if the Warrant Shares have not been registered for
resale under the Securities Act of 1933 or the Transfer Agent is not participating in the DTC Fast Automated Securities Transfer
Program, issue and dispatch by overnight courier to the address as specified in the Exercise Notice, a certificate, registered
in the name of the Holder or its designee, for the number of Warrant Shares to which the Holder is entitled pursuant to such exercise.
The Company shall be responsible for all fees and expenses of the Transfer Agent and all fees and expenses with respect to the
issuance of Warrant Shares via DTC, if any, including without limitation for same day processing. Upon delivery of the Exercise
Notice, the Holder shall be deemed for all corporate purposes to have become the holder of record and beneficial owner of the
Warrant Shares with respect to which this Warrant has been exercised, irrespective of the date such Warrant Shares are credited
to the Holder’s DTC account or the date of delivery of the certificates evidencing such Warrant Shares, as the case may
be, provided that the Holder delivers the Aggregate Exercise Price (or notice of a Cashless Exercise) within one (1) Trading Day
of delivery of the Exercise Notice. If this Warrant is physically delivered to the Company in connection with any exercise pursuant
to this Section 1(a) and the number of Warrant Shares represented by this Warrant submitted for exercise is greater than the number
of Warrant Shares being acquired upon an exercise, then the Company shall as soon as practicable and in no event later than five
(5) Trading Days after any exercise and at its own expense, issue and deliver to the Holder (or its designee) a new Warrant (in
accordance with Section 7(d)) representing the right to purchase the number of Warrant Shares issuable immediately prior to such
exercise under this Warrant, less the number of Warrant Shares with respect to which this Warrant is exercised. No fractional
Warrant Shares are to be issued upon the exercise of this Warrant, but rather the number of Warrant Shares to be issued shall
be rounded to the nearest whole number. The Company shall pay any and all transfer, stamp, issuance and similar taxes, costs and
expenses (including, without limitation, fees and expenses of the Transfer Agent) which may be payable with respect to the issuance
and delivery of Warrant Shares upon exercise of this Warrant, provided, however, that the Company shall not be required
to pay any tax which may be payable based on the income of the Holder or in respect of any transfer involved in the registration
of any certificates for Warrant Shares or Warrants in a name other than that of the Holder or an affiliate thereof. The Holder
shall be responsible for any tax which may be payable based on the income of the Holder or in respect of any transfer involved
in the registration of any certificates for Warrant Shares or Warrants in a name other than that of the Holder or an affiliate
thereof. The Company’s obligations to issue and deliver Warrant Shares in accordance with the terms and subject to the conditions
hereof are absolute and unconditional, irrespective of any action or inaction by the Holder to enforce the same, any waiver or
consent with respect to any provision hereof, the recovery of any judgment against any Person or any action to enforce the same,
or any setoff, counterclaim, recoupment, limitation or termination; provided, however, that the Company shall not be required
to deliver Warrant Shares with respect to an exercise prior to the Holder’s delivery of the Aggregate Exercise Price (or
notice of a Cashless Exercise) with respect to such exercise.


 




    	-2-



    	 



    

 


(b) Exercise
Price. For purposes of this Warrant, “Exercise Price” means $0.01 per share, subject to adjustment as provided
herein.


 


(c) Cashless
Exercise. Notwithstanding anything contained herein to the contrary, the Holder may, in its sole discretion, exercise this
Warrant in whole or in part and, in lieu of making the cash payment otherwise contemplated to be made to the Company upon such
exercise in payment of the Aggregate Exercise Price, elect instead to receive upon such exercise the “Net Number”
of shares of Common Stock determined according to the following formula (a “Cashless Exercise”):


 


	 	Net
    Number =	(A
    x B) – (A x C)	 
	 	 	B	 


 


For
purposes of the foregoing formula:


 


	 	A=	the
    total number of shares with respect to which this Warrant is then being exercised.
	 	 	 
	 	B=	as
    applicable: (i) the Closing Sale Price of the Common Stock on the Trading Day immediately preceding the date of
    the applicable Exercise Notice if such Exercise Notice is (1) both executed and delivered pursuant to Section 1(a) hereof
    on a day that is not a Trading Day or (2) both executed and delivered pursuant to Section 1(a) hereof on a Trading Day prior
    to the opening of “regular trading hours” (as defined in Rule 600(b)(64) of Regulation NMS promulgated under the
    federal securities laws) on such Trading Day, (ii) the Bid Price of the Common Stock as of the time of the Holder’s
    execution of the applicable Exercise Notice if such Exercise Notice is executed during “regular trading hours”
    on a Trading Day and is delivered within two (2) hours thereafter (including until two (2) hours after the close of “regular
    trading hours” on a Trading Day) pursuant to Section 1(a) hereof, or (iii) the Closing Sale Price of the Common Stock
    on the date of the applicable Exercise Notice if the date of such Exercise Notice is a Trading Day and such Exercise Notice
    is both executed and delivered pursuant to Section 1(a) hereof after the close of “regular trading hours” on such
    Trading Day.
	 	 	 
	 	C=	the
    Exercise Price then in effect for the applicable Warrant Shares at the time of such exercise.


 






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If
Warrant Shares are issued in such a cashless exercise, the Company acknowledges and agrees that in accordance with Section 3(a)(9)
of the Securities Act of 1933, as amended, the Warrant Shares shall take on the characteristics of the Warrants being exercised,
and the holding period of the Warrants being exercised may be tacked on to the holding period of the Warrant Shares. The Company
agrees not to take any position contrary to this Section 1(d).


 


(d) Disputes.
In the case of a dispute as to the determination of the Exercise Price or the arithmetic calculation of the Warrant Shares, the
Company shall promptly issue to the Holder the number of Warrant Shares that are not disputed and resolve such dispute in accordance
with Section 11.


 


(e) Authorized
Shares. The Company covenants that, during the period the Warrant is outstanding, it will reserve from its authorized and
unissued shares of Common Stock a sufficient number of shares to provide for the issuance of the Warrant Shares upon the exercise
of any purchase rights under this Warrant. The Company further covenants that its issuance of this Warrant shall constitute full
authority to its officers who are charged with the duty of issuing the necessary Warrant Shares upon the exercise of the purchase
rights under this Warrant. The Company will take all such reasonable action as may be necessary to assure that such Warrant Shares
may be issued as provided herein without violation of any applicable law or regulation, or of any requirements of the Trading
Market upon which the shares of Common Stock may be listed. The Company covenants that all Warrant Shares which may be issued
upon the exercise of the purchase rights represented by this Warrant will, upon exercise of the purchase rights represented by
this Warrant and payment for such Warrant Shares in accordance herewith, be duly authorized, validly issued, fully paid and nonassessable
and free from all taxes, liens and charges created by the Company in respect of the issue thereof (other than taxes in respect
of any transfer occurring contemporaneously with such issue).


 


Except
and to the extent as waived or consented to by the Holder, the Company shall not by any action, including, without limitation,
amending its certificate of incorporation or through any reorganization, transfer of assets, consolidation, merger, dissolution,
issue or sale of securities or any other voluntary action, avoid or seek to avoid the observance or performance of any of the
terms of this Warrant, but will at all times in good faith assist in the carrying out of all such terms and in the taking of all
such actions as may be necessary or appropriate to protect the rights of Holder as set forth in this Warrant against impairment.
Without limiting the generality of the foregoing, the Company will (i) not increase the par value of any Warrant Shares above
the amount payable therefor upon such exercise immediately prior to such increase in par value, (ii) take all such action as may
be necessary or appropriate in order that the Company may validly and legally issue fully paid and nonassessable Warrant Shares
upon the exercise of this Warrant and (iii) use commercially reasonable efforts to obtain all such authorizations, exemptions
or consents from any public regulatory body having jurisdiction thereof, as may be, necessary to enable the Company to perform
its obligations under this Warrant. Before taking any action which would result in an adjustment in the number of Warrant Shares
for which this Warrant is exercisable or in the Exercise Price, the Company shall obtain all such authorizations or exemptions
thereof, or consents thereto, as may be necessary from any public regulatory body or bodies having jurisdiction thereof.


 




    	-4-



    	 



    

 


2. ADJUSTMENT
OF EXERCISE PRICE AND NUMBER OF WARRANT SHARES


 


The
Exercise Price and the number of Warrant Shares shall be adjusted from time to time as follows:


 


(a) Adjustment
Upon Subdivision or Combination of Common Stock. If the Company at any time while this Warrant is outstanding subdivides (by
any stock split, stock dividend, recapitalization or otherwise) one or more classes of its outstanding shares of Common Stock
into a greater number of shares, the Exercise Price in effect immediately prior to such subdivision will be proportionately reduced
and the number of Warrant Shares will be proportionately increased. If the Company at any time while this Warrant is outstanding
combines (by combination, reverse stock split or otherwise) one or more classes of its outstanding shares of Common Stock into
a smaller number of shares, the Exercise Price in effect immediately prior to such combination will be proportionately increased
and the number of Warrant Shares will be proportionately decreased. Any adjustment under this Section 2(b) shall become effective
at the close of business on the date the subdivision or combination becomes effective.


 


3. RIGHTS
UPON DISTRIBUTION OF ASSETS. In addition to any adjustments pursuant to Section 2 above, if, at any time while this Warrant
is outstanding, the Company shall declare or make any dividend or other distribution of its assets (or rights to acquire its assets)
to holders of shares of Common Stock, by way of return of capital or otherwise (including, without limitation, any distribution
of cash, stock or other securities, property, options, evidence of indebtedness or any other assets by way of a dividend, spin
off, reclassification, corporate rearrangement, scheme of arrangement or other similar transaction) (a “Distribution”),
at any time after the issuance of this Warrant, then, in each such case, the Holder shall be entitled to participate in such Distribution
to the same extent that the Holder would have participated therein if the Holder had held the number of shares of Common Stock
acquirable upon complete exercise of this Warrant immediately before the date on which a record is taken for such Distribution,
or, if no such record is taken, the date as of which the record holders of shares of Common Stock are to be determined for the
participation in such Distribution.


 


4. PURCHASE
RIGHTS; FUNDAMENTAL TRANSACTIONS.


 


(a) Purchase
Rights. In addition to any adjustments pursuant to Section 2 above, if at any time while this Warrant is outstanding the Company
grants, issues or sells any Options, Convertible Securities or rights to purchase stock, warrants, securities or other property
pro rata to the record holders of any class of Common Stock (the “Purchase Rights”), then the Holder will be
entitled to acquire, upon the terms applicable to such Purchase Rights, the aggregate Purchase Rights which the Holder could have
acquired if the Holder had held the number of shares of Common Stock acquirable upon complete exercise of this Warrant immediately
before the date on which a record is taken for the grant, issuance or sale of such Purchase Rights, or, if no such record is taken,
the date as of which the record holders of Common Stock are to be determined for the grant, issuance or sale of such Purchase
Rights.


 




    	-5-



    	 



    

 


(b) Fundamental
Transaction. The Company shall not enter into or be party to a Fundamental Transaction unless the Successor Entity assumes
in writing all of the obligations of the Company under this Warrant in accordance with the provisions of this Section 4(b), including
agreements to deliver to the Holder in exchange for this Warrant a security of the Successor Entity evidenced by a written instrument
substantially similar in form and substance to this Warrant, including, without limitation, which is exercisable for a corresponding
number of shares of capital stock equivalent to the shares of Common Stock acquirable and receivable upon exercise of this Warrant
(without regard to any limitations on the exercise of this Warrant) prior to such Fundamental Transaction, and with an exercise
price which applies the exercise price hereunder to such shares of capital stock (but taking into account the relative value of
the shares of Common Stock pursuant to such Fundamental Transaction and the value of such shares of capital stock, such adjustments
to the number of shares of capital stock and such exercise price being for the purpose of protecting the economic value of this
Warrant immediately prior to the consummation of such Fundamental Transaction). Upon the consummation of each Fundamental Transaction,
the Successor Entity shall succeed to, and be substituted for the Company (so that from and after the date of the applicable Fundamental
Transaction, the provisions of this Warrant referring to the “Company” shall refer instead to the Successor Entity),
and may exercise every right and power of the Company and shall assume all of the obligations of the Company under this Warrant
with the same effect as if such Successor Entity had been named as the Company herein. Notwithstanding the foregoing, and without
limiting Section 1(f) hereof, the Holder may elect, at its sole option, by delivery of written notice to the Company to waive
this Section 4(b) to permit the Fundamental Transaction without the assumption of this Warrant.


 


5. WARRANT
HOLDER NOT DEEMED A STOCKHOLDER. Except as otherwise specifically provided herein, the Holder, solely in such Person’s
capacity as a holder of this Warrant, shall not be entitled to vote or receive dividends or be deemed the holder of capital stock
of the Company for any purpose, nor shall anything contained in this Warrant be construed to confer upon the Holder, solely in
such Person’s capacity as the Holder of this Warrant, any of the rights of a stockholder of the Company or any right to
vote, give or withhold consent to any corporate action (whether any reorganization, issue of stock, reclassification of stock,
consolidation, merger, conveyance or otherwise), receive notice of meetings, receive dividends or subscription rights, or otherwise,
prior to the issuance to the Holder of the Warrant Shares which such Person is then entitled to receive upon the due exercise
of this Warrant. In addition, nothing contained in this Warrant shall be construed as imposing any liabilities on the Holder to
purchase any securities (upon exercise of this Warrant or otherwise) or as a stockholder of the Company, whether such liabilities
are asserted by the Company or by creditors of the Company. Notwithstanding this Section 6, the Company shall provide the Holder
with copies of the same notices and other information given to the stockholders of the Company generally, contemporaneously with
the giving thereof to the stockholders.




    	-6-



    	 



    

 


6. REISSUANCE
OF WARRANTS.


 


(a) Transfer
of Warrant. If this Warrant is to be transferred, the Holder shall surrender this Warrant to the Company, whereupon the Company
will forthwith issue and deliver upon the order of the Holder a new Warrant (in accordance with Section 7(d)), registered as the
Holder may request, representing the right to purchase the number of Warrant Shares being transferred by the Holder and, if less
than the total number of Warrant Shares then underlying this Warrant is being transferred, a new Warrant (in accordance with Section
7(d)) to the Holder representing the right to purchase the number of Warrant Shares not being transferred. The acceptance of the
new Warrant by the transferee thereof shall be deemed the acceptance by such transferee of all of the rights and obligations in
respect of the new Warrant that the Holder has in respect of this Warrant.


 


(b) Lost,
Stolen or Mutilated Warrant. Upon receipt by the Company of evidence reasonably satisfactory to the Company of the loss, theft,
destruction or mutilation of this Warrant, and, in the case of loss, theft or destruction, of any indemnification undertaking
by the Holder to the Company in customary form (but without the obligation to post a bond) and, in the case of mutilation, upon
surrender and cancellation of this Warrant, the Company shall execute and deliver to the Holder a new Warrant (in accordance with
Section 7(d)) representing the right to purchase the Warrant Shares then underlying this Warrant.


 


(c) Exchangeable
for Multiple Warrants. This Warrant is exchangeable, upon the surrender hereof by the Holder at the principal office of the
Company, for a new Warrant or Warrants (in accordance with Section 7(d)) representing in the aggregate the right to purchase the
number of Warrant Shares then underlying this Warrant, and each such new Warrant will represent the right to purchase such portion
of such Warrant Shares as is designated by the Holder at the time of such surrender, provided, however, that the Company shall
not be required to issue Warrants for fractional shares of Common Stock hereunder.


 


(d) Issuance
of New Warrants. Whenever the Company is required to issue a new Warrant pursuant to the terms of this Warrant, such new Warrant
(i) shall be of like tenor with this Warrant, (ii) shall represent, as indicated on the face of such new Warrant, the right to
purchase the Warrant Shares then underlying this Warrant (or in the case of a new Warrant being issued pursuant to Section 7(a)
or Section 7(c), the Warrant Shares designated by the Holder which, when added to the number of shares of Common Stock underlying
the other new Warrants issued in connection with such issuance, does not exceed the number of Warrant Shares then underlying this
Warrant), (iii) shall have an issuance date, as indicated on the face of such new Warrant which is the same as the Issuance Date,
and (iv) shall have the same rights and conditions as this Warrant.


 




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7. NOTICES.
Whenever notice is required to be given under this Warrant, including, without limitation, an Exercise Notice, unless otherwise
provided herein, such notice shall be given in writing, (i) if delivered (a) from within the domestic United States, by first-class
registered or certified airmail, or nationally recognized overnight express courier, postage prepaid, electronic mail or by facsimile
or (b) from outside the United States, by International Federal Express, electronic mail or facsimile, and (ii) will be deemed
given (A) if delivered by first-class registered or certified mail domestic, three (3) Trading Days after so mailed, (B) if delivered
by nationally recognized overnight carrier, one (1) Trading Day after so mailed, (C) if delivered by International Federal Express,
two (2) Trading Days after so mailed and (D) at the time of transmission, if delivered by electronic mail to the email address
specified in this Section 8 prior to 5:00 p.m. (New York time) on a Trading Day, (E) the next Trading Day after the date of transmission,
if delivered by electronic mail to each of the email address specified in this Section 8 on a day that is not a Trading Day or
later than 5:00 p.m. (New York time) on any Trading Day and (E) if delivered by facsimile, upon electronic confirmation of receipt
of such facsimile, and will be delivered and addressed as follows:


 


	 	(i)	if
    to the Company, to:


 


Sonnet
BioTherapeutics Holdings, Inc.


100
Overlook Center, Second Floor,


Princeton,
New Jersey, 08540-7814


 


	 	(ii)	if
    to the Holder, at such address or other contact information delivered by the Holder to Company or as is on the books and records
    of the Company.


 


The
Company shall provide the Holder with prompt written notice of all actions taken pursuant to this Warrant, including in reasonable
detail a description of such action and the reason therefor. Without limiting the generality of the foregoing, the Company will
give written notice to the Holder (i) reasonably promptly upon any adjustment of the Exercise Price, setting forth in reasonable
detail, and certifying, the calculation of such adjustment and (ii) at least ten (10) days prior to the date on which the Company
closes its books or takes a record (A) with respect to any dividend or distribution upon the shares of Common Stock, (B) with
respect to any grants, issuances or sales of any Options, Convertible Securities or rights to purchase stock, warrants, securities
or other property pro rata to holders of any class of shares of Common Stock or (C) for determining rights to vote with respect
to any Fundamental Transaction, dissolution or liquidation; provided in each case that such information shall be made known to
the public prior to or in conjunction with such notice being provided to the Holder. It is expressly understood and agreed
that the time of exercise specified by the Holder in each Exercise Notice shall be definitive and may not be disputed or challenged
by the Company.


 


8. AMENDMENT
AND WAIVER. Except as otherwise provided herein, the provisions of this Warrant may be amended or waived and the Company may
take any action herein prohibited, or omit to perform any act herein required to be performed by it, only if the Company has obtained
the written consent of the Holder.


 


9. GOVERNING
LAW; JURISDICTION; JURY TRIAL. This Warrant shall be governed by and construed and enforced in accordance with, and all questions
concerning the construction, validity, interpretation and performance of this Warrant shall be governed by, the internal laws
of the State of New York, without giving effect to any choice of law or conflict of law provision or rule (whether of the State
of New York or any other jurisdictions) that would cause the application of the laws of any jurisdictions other than the State
of New York. The Company hereby irrevocably submits to the exclusive jurisdiction of the state and federal courts sitting in The
City of New York, Borough of Manhattan, for the adjudication of any dispute hereunder or in connection herewith or with any transaction
contemplated hereby or discussed herein, and hereby irrevocably waives, and agrees not to assert in any suit, action or proceeding,
any claim that it is not personally subject to the jurisdiction of any such court, that such suit, action or proceeding is brought
in an inconvenient forum or that the venue of such suit, action or proceeding is improper. THE COMPANY HEREBY IRREVOCABLY WAIVES
ANY RIGHT IT MAY HAVE, AND AGREES NOT TO REQUEST, A JURY TRIAL FOR THE ADJUDICATION OF ANY DISPUTE HEREUNDER OR IN CONNECTION
WITH OR ARISING OUT OF THIS WARRANT OR ANY TRANSACTION CONTEMPLATED HEREBY.


 




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10. TRANSFER.
This Warrant and the Warrant Shares may be offered for sale, sold, transferred, pledged or assigned without the consent of the
Company.


 


11. SEVERABILITY;
CONSTRUCTION; HEADINGS. If any provision of this Warrant is prohibited by law or otherwise determined to be invalid or unenforceable
by a court of competent jurisdiction, the provision that would otherwise be prohibited, invalid or unenforceable shall be deemed
amended to apply to the broadest extent that it would be valid and enforceable, and the invalidity or unenforceability of such
provision shall not affect the validity of the remaining provisions of this Warrant so long as this Warrant as so modified continues
to express, without material change, the original intentions of the parties as to the subject matter hereof and the prohibited
nature, invalidity or unenforceability of the provision(s) in question does not substantially impair the respective expectations
or reciprocal obligations of the parties or the practical realization of the benefits that would otherwise be conferred upon the
parties. The parties will endeavor in good faith negotiations to replace the prohibited, invalid or unenforceable provision(s)
with a valid provision(s), the effect of which comes as close as possible to that of the prohibited, invalid or unenforceable
provision(s). This Warrant shall be deemed to be jointly drafted by the Company and the Holder and shall not be construed against
any Person as the drafter hereof. The headings of this Warrant are for convenience of reference and shall not form part of, or
affect the interpretation of, this Warrant.


 


12. CERTAIN
DEFINITIONS. For purposes of this Warrant, the following terms shall have the following meanings:


 


(a) “Affiliate”
means, with respect to any Person, any other Person that directly or indirectly controls, is controlled by, or is under common
control with, such Person, it being understood for purposes of this definition that “control” of a Person means the
power directly or indirectly either to vote 10% or more of the stock having ordinary voting power for the election of directors
of such Person or direct or cause the direction of the management and policies of such Person whether by contract or otherwise.


 


(b)
“Bid Price” means, for any security as of the particular time of determination, the bid price for such security
on the Principal Market as reported by Bloomberg as of such time of determination, or, if the Principal Market is not the principal
securities exchange or trading market for such security, the bid price of such security on the principal securities exchange or
trading market where such security is listed or traded as reported by Bloomberg as of such time of determination, or if the foregoing
does not apply, the bid price of such security in the over-the-counter market on the electronic bulletin board for such security
as reported by Bloomberg as of such time of determination, or, if no bid price is reported for such security by Bloomberg as of
such time of determination, the average of the bid prices of any market makers for such security as reported in the “pink
sheets” by OTC Markets Group Inc. (formerly Pink Sheets LLC) as of such time of determination. If the Bid Price cannot be
calculated for a security as of the particular time of determination on any of the foregoing bases, the Bid Price of such security
as of such time of determination shall be the fair market value as mutually determined by the Company and the Holder. If the Company
and the Holder are unable to agree upon the fair market value of such security, then such dispute shall be resolved in accordance
with the procedures in Section 11. All such determinations shall be appropriately adjusted for any stock dividend, stock split,
stock combination or other similar transaction during such period.


 




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(c) “Bloomberg”
means Bloomberg Financial Markets.


 


(d) “Business
Day” means any day other than Saturday, Sunday or other day on which commercial banks in The City of New York are authorized
or required by law to remain closed.


 


(e) “Closing
Sale Price” means, for any security as of any date, the last closing trade price for such security on the Principal
Market, as reported by Bloomberg, or, if the Principal Market begins to operate on an extended hours basis and does not designate
the closing trade price then the last trade price of such security prior to 4:00:00 p.m., New York time, as reported by Bloomberg,
or, if the Principal Market is not the principal securities exchange or trading market for such security, the last trade price
of such security on the principal securities exchange or trading market where such security is listed or traded as reported by
Bloomberg, or if the foregoing do not apply, the last trade price of such security in the over-the-counter market on the electronic
bulletin board for such security as reported by Bloomberg, or, if no last trade price is reported for such security by Bloomberg,
the average of the ask prices of any market makers for such security as reported in the OTC Link or “pink sheets”
by OTC Markets Group Inc. (formerly Pink OTC Markets Inc.). If the Closing Sale Price cannot be calculated for a security on a
particular date on any of the foregoing bases, the Closing Sale Price of such security on such date shall be the fair market value
as mutually determined by the Company and the Holder. If the Company and the Holder are unable to agree upon the fair market value
of such security, then such dispute shall be resolved pursuant to Section 11. All such determinations to be appropriately adjusted
for any stock dividend, stock split, stock combination, reclassification or other similar transaction during the applicable calculation
period.


 


(f) “Common
Stock” means (i) the Company’s Common Stock, par value $0.001 per share, and (ii) any capital stock into which
such Common Stock shall have been changed or any capital stock resulting from a reclassification of such Common Stock.


 


(g) “Convertible
Securities” means any stock or securities (other than Options) directly or indirectly convertible into or exercisable
or exchangeable for shares of Common Stock.


 


(h) “Eligible
Market” means The NASDAQ Capital Market, the NYSE American LLC, The NASDAQ Global Select Market, The NASDAQ Global Market
or The New York Stock Exchange, Inc.


 




    	-10-



    	 



    

 


(i) “Fundamental
Transaction” means (A) that the Company shall, directly or indirectly, including through subsidiaries, Affiliates or
otherwise, in one or more related transactions, (i) consolidate or merge with or into (whether or not the Company is the surviving
corporation) another Subject Entity, or (ii) sell, assign, transfer, convey or otherwise dispose of all or substantially all of
the properties or assets of the Company or any of its “significant subsidiaries” (as defined in Rule 1-02 of Regulation
S-X) to one or more Subject Entities, or (iii) make, or allow one or more Subject Entities to make, or allow the Company to be
subject to or have its shares of Common Stock be subject to or party to one or more Subject Entities making, a purchase, tender
or exchange offer that is accepted by the holders of at least either (x) 50% of the outstanding shares of Common Stock, (y) 50%
of the outstanding shares of Common Stock calculated as if any shares of Common Stock held by all Subject Entities making or party
to, or Affiliated with any Subject Entities making or party to, such purchase, tender or exchange offer were not outstanding;
or (z) such number of shares of Common Stock such that all Subject Entities making or party to, or Affiliated with any Subject
Entity making or party to, such purchase, tender or exchange offer, become collectively the beneficial owners (as defined in Rule
13d-3 under the 1934 Act) of at least 50% of the outstanding shares of Common Stock, or (iv) consummate a stock purchase agreement
or other business combination (including, without limitation, a reorganization, recapitalization, spin-off or scheme of arrangement)
with one or more Subject Entities whereby all such Subject Entities, individually or in the aggregate, acquire, either (x) at
least 50% of the outstanding shares of Common Stock, (y) at least 50% of the outstanding shares of Common Stock calculated as
if any shares of Common Stock held by all the Subject Entities making or party to, or Affiliated with any Subject Entity making
or party to, such stock purchase agreement or other business combination were not outstanding; or (z) such number of shares of
Common Stock such that the Subject Entities become collectively the beneficial owners (as defined in Rule 13d-3 under the 1934
Act) of at least 50% of the outstanding shares of Common Stock, or (v) reorganize, recapitalize or reclassify its shares of Common
Stock, (B) that the Company shall, directly or indirectly, including through subsidiaries, Affiliates or otherwise, in one or
more related transactions, allow any Subject Entity individually or the Subject Entities in the aggregate to be or become the
“beneficial owner” (as defined in Rule 13d-3 under the 1934 Act), directly or indirectly, whether through acquisition,
purchase, assignment, conveyance, tender, tender offer, exchange, reduction in outstanding shares of Common Stock, merger, consolidation,
business combination, reorganization, recapitalization, spin-off, scheme of arrangement, reorganization, recapitalization or reclassification
or otherwise in any manner whatsoever, of either (x) at least 50% of the aggregate ordinary voting power represented by issued
and outstanding shares of Common Stock, (y) at least 50% of the aggregate ordinary voting power represented by issued and outstanding
shares of Common Stock not held by all such Subject Entities as of the Issuance Date calculated as if any shares of Common Stock
held by all such Subject Entities were not outstanding, or (z) a percentage of the aggregate ordinary voting power represented
by issued and outstanding shares of Common Stock or other equity securities of the Company sufficient to allow such Subject Entities
to effect a statutory short form merger or other transaction requiring other stockholders of the Company to surrender their Common
Stock without approval of the stockholders of the Company or (C) directly or indirectly, including through subsidiaries, Affiliates
or otherwise, in one or more related transactions, the issuance of or the entering into any other instrument or transaction structured
in a manner to circumvent, or that circumvents, the intent of this definition in which case this definition shall be construed
and implemented in a manner otherwise than in strict conformity with the terms of this definition to the extent necessary to correct
this definition or any portion of this definition which may be defective or inconsistent with the intended treatment of such instrument
or transaction.


 




    	-11-



    	 



    

 


(j) “Group”
means a “group” as that term is used in Section 13(d) of the 1934 Act and as defined in Rule 13d-5 thereunder.


 


(k) “Options”
means any rights, warrants or options to subscribe for or purchase shares of Common Stock or Convertible Securities.


 


(l) “Parent
Entity” of a Person means an entity that, directly or indirectly, controls the applicable Person, including such entity
whose common stock or equivalent equity security is quoted or listed on an Eligible Market (or, if so elected by the Holder, any
other market, exchange or quotation system), or, if there is more than one such Person or such entity, the Person or such entity
designated by the Holder or in the absence of such designation, such Person or entity with the largest public market capitalization
as of the date of consummation of the Fundamental Transaction.


 


(m) “Person”
means an individual, a limited liability company, a partnership, a joint venture, a corporation, a trust, an unincorporated organization,
any other entity and a government or any department or agency thereof.


 


(n) “Principal
Market” means (i) the Nasdaq Capital Market, or (ii) if the Nasdaq Capital Market is not the principal trading market
for the Common Stock, then the principal securities exchange or securities market on which the Common Stock is then traded.


 


(o)
“Subject Entity” means any Person, Persons or Group or any Affiliate or associate of any such Person, Persons
or Group.


 


(p) “Successor
Entity” means one or more Person or Persons (or, if so elected by the Holder, the Company or Parent Entity) formed by,
resulting from or surviving any Fundamental Transaction or one or more Person or Persons (or, if so elected by the Holder, the
Company or the Parent Entity) with which such Fundamental Transaction shall have been entered into.


 


(q) “Trading
Day” means any day on which the Common Stock is traded on the Principal Market.


 


[Signature
Page Follows]


 




    	-12-



    	 



    

 


IN
WITNESS WHEREOF, the Company has caused this Warrant to Purchase Common Stock to be duly executed as of the Issuance Date
set out above.


 


	 	SONNET
    BIOTHERAPEUTICS HOLDINGS, INC.  
	 	 
	 	By:	                                  
	 	Name: 	 
	 	Title:	 


 




    	-13-



    	 



    

 


EXHIBIT
A


 


EXERCISE
NOTICE


 


TO
BE EXECUTED BY THE REGISTERED HOLDER TO EXERCISE THIS

WARRANT TO PURCHASE COMMON STOCK


 


SONNET
BIOTHERAPEUTICS HOLDINGS, INC.


 


The
undersigned holder hereby exercises the right to purchase                   

shares of Common Stock (“Warrant Shares”) of Sonnet BioTherapeutics Holdings, Inc., a company organized under
the laws of Delaware (the “Company”), evidenced by the attached Warrant to Purchase Common Stock (the “Warrant”).
Capitalized terms used herein and not otherwise defined shall have the respective meanings set forth in the Warrant.


 


1. Form
of Exercise Price. The Holder intends that payment of the Exercise Price shall be made as:


 


a
“Cash Exercise” with respect to                    

Warrant Shares; and/or


 


a
“Cashless


 


Exercise”
with respect to                    
 Warrant
Shares.


 


2. Payment
of Exercise Price. In the event that the holder has elected a Cash Exercise with respect to some or all of the Warrant Shares
to be issued pursuant hereto, the holder shall pay the Aggregate Exercise Price in the sum of $               
to the Company in accordance with the terms of the Warrant.


 


3. Delivery
of Warrant Shares. The Company shall deliver to the holder Warrant Shares in accordance with the terms of the Warrant.


 


4.
Representations and Warranties. By its delivery of this Exercise Notice, the undersigned represents and warrants to the
Company that in giving effect to the exercise evidenced hereby the Holder will not beneficially own in excess of the number of
shares of Common Stock (determined in accordance with Section 13(d) of the Securities Exchange Act of 1934, as amended) permitted
to be owned under Section 1(f) of this Warrant to which this notice relates.


 


Date:
                   ,   


 


	 	 
	Name
    of Registered Holder	 
	 	 
	By:	                 	 
	Name: 	 	 
	Title	 	 


 




    	-14-



    	 



    

 


ACKNOWLEDGEMENT


 


The
Company hereby acknowledges this Exercise Notice and hereby directs Securities Transfer Corporation to issue the above indicated
number of shares of Common Stock on or prior to the applicable Share Delivery Date.


 


	 	SONNET
    BIOTHERAPEUTICS HOLDINGS, INC.
	 	 
	 	By:	                               
	 	Name: 	 
	 	Title:	 


 




    	-15-