Document:

Exhibit 4.1

 

EXHIBIT C-1

 

ORDINARY SHARE PURCHASE WARRANT

 

Nabriva
Therapeutics plc

 

	Warrant Shares: _______	Initial Exercise Date: March __, 2021
	 	Issue Date: March __, 2021

 

THIS ORDINARY SHARE PURCHASE
WARRANT (the “Warrant”) certifies that, for value of $0.0001 received by the Company, _____________ or its assigns
(the “Holder”) is entitled, upon the terms and subject to the limitations on exercise and the conditions hereinafter
set forth, at any time on or after March __, 2021 (the “Initial Exercise Date”) and on or prior to 5:00 p.m.
(New York City time) on March __, 2026 (the “Termination Date”) but not thereafter, to subscribe for and purchase
from Nabriva Therapeutics plc, an Irish incorporated public limited company (the “Company”), up to ______ Ordinary
Shares (as subject to adjustment hereunder, the “Warrant Shares”). The purchase price of one Ordinary Share
under this Warrant shall be equal to the Exercise Price, as defined in Section 2(b).

 

Section 1.        Definitions.
In addition to the terms defined elsewhere in this Warrant, the following terms have the meanings indicated in this Section 1:

 

“Affiliate”
means any Person that, directly or indirectly through one or more intermediaries, controls or is controlled by or is under common
control with a Person, as such terms are used in and construed under Rule 405 under the Securities Act.

 

“Bid
Price” means, for any date, the price determined by the first of the following clauses that applies: (a) if the Ordinary
Shares are then listed or quoted on a Trading Market, the bid price of the Ordinary Shares for the time in question (or the nearest
preceding date) on the Trading Market on which the Ordinary Shares are then listed or quoted as reported by Bloomberg (based on
a Trading Day from 9:30 a.m. (New York City time) to 4:02 p.m. (New York City time)), (b)  if OTCQB or OTCQX is not a Trading
Market, the volume weighted average price of the Ordinary Shares for such date (or the nearest preceding date) on OTCQB or OTCQX
as applicable, (c) if the Ordinary Shares are not then listed or quoted for trading on OTCQB or OTCQX and if prices for the Ordinary
Shares are then reported on The Pink Open Market (or a similar organization or agency succeeding to its functions of reporting
prices), the most recent bid price per Ordinary Share so reported, or (d) in all other cases, the fair market value of an
Ordinary Share as determined by an independent appraiser selected in good faith by the Purchasers of a majority in interest of
the Securities then outstanding and reasonably acceptable to the Company, the fees and expenses of which shall be paid by the Company.

 

“Bloomberg”
means Bloomberg L.P.

 

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“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; provided, however, for clarification, commercial banks shall not be deemed to
be authorized or required by law to remain closed due to “stay at home”, “shelter-in-place”, “non-essential
employee”  or any other similar orders or restrictions or the closure of any physical branch locations at the direction
of any governmental authority so long as the electronic funds transfer systems (including for wire transfers) of commercial banks
in The City of New York generally are open for use by customers on such day.

 

“Commission”
means the United States Securities and Exchange Commission.

 

“Exchange
Act” means the Securities Exchange Act of 1934, as amended, and the rules and regulations promulgated thereunder.

 

“Person”
means an individual or corporation, partnership, trust, incorporated or unincorporated association, joint venture, limited liability
company, joint share company, government (or an agency or subdivision thereof) or other entity of any kind.

 

“Ordinary
Share” means the ordinary shares of the Company, nominal value $0.01 per share, and any other class of securities into
which such securities may hereafter be reclassified or changed.

 

“Ordinary
Share Equivalents” means any securities of the Company or the Subsidiaries which would entitle the holder thereof to
acquire at any time Ordinary Shares, including, without limitation, any debt, preferred share, right, option, warrant or other
instrument that is at any time convertible into or exercisable or exchangeable for, or otherwise entitles the holder thereof to
receive, Ordinary Shares.

 

“Purchase
Agreement” means that certain Securities Purchase Agreement, dated March 1, 2021, among the Company and the purchasers
signatory thereto.

 

“Registration
Statement” means the Company’s registration statement on Form S-3 (File No. 333-248530).

 

“Securities
Act” means the Securities Act of 1933, as amended, and the rules and regulations promulgated thereunder.

 

“Subsidiary”
means any subsidiary of the Company and shall, where applicable, also include any direct or indirect subsidiary of the Company
formed or acquired after the date hereof.

 

“Trading
Day” means a day on which the Ordinary Shares are traded on a Trading Market.

 

“Trading
Market” means any of the following markets or exchanges on which the Ordinary Shares are listed or quoted for trading
on the date in question: the NYSE American, the Nasdaq Capital
Market, the Nasdaq Global Market, the Nasdaq Global Select Market or the New York Stock Exchange (or any successors to any of the
foregoing).

 

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“Transfer
Agent” means Computershare Trust Company,
N.A., the current transfer agent of the Company, and any successor transfer agent of the Company.

 

“VWAP”
means, for any date, the price determined by the first of the following clauses that applies: (a) if the Ordinary Shares are then
listed or quoted on a Trading Market, the daily volume weighted average price of the Ordinary Shares for such date (or the nearest
preceding date) on the Trading Market on which the Ordinary Shares are then listed or quoted as reported by Bloomberg (based on
a Trading Day from 9:30 a.m. (New York City time) to 4:02 p.m. (New York City time), (b)  if OTCQB or OTCQX is not a Trading
Market, the volume weighted average price of the Ordinary Shares for such date (or the nearest preceding date) on OTCQB or OTCQX
as applicable, (c) if the Ordinary Shares are not then listed or quoted for trading on OTCQB or OTCQX and if prices for the Ordinary
Shares are then reported on The Pink Open Market (or a similar organization or agency succeeding to its functions of reporting
prices), the most recent bid price per share of the Ordinary Shares so reported, or (d) in all other cases, the fair market
value of an Ordinary Share as determined by an independent appraiser selected in good faith by the Purchasers of a majority in
interest of the Securities then outstanding and reasonably acceptable to the Company, the fees and expenses of which shall be paid
by the Company.

 

“Warrants”
means this Warrant and other Warrants issued by the Company pursuant to the Registration Statement.

 

Section 2.         Exercise.

 

a)                  Exercise
of Warrant. Exercise of the subscription and purchase rights represented by this Warrant may be made, in whole or in
part, at any time or times on or after the Initial Exercise Date and on or before the Termination Date by delivery to the
Company of a duly executed facsimile copy or PDF copy submitted by e-mail (or e-mail attachment) of the Notice of Exercise in
the form annexed hereto (the “Notice of Exercise”). Within the earlier of (i) two (2) Trading Days and
(ii) the number of Trading Days comprising the Standard Settlement Period (as defined in Section 2(d)(i) herein) following
the date of exercise as aforesaid, the Holder shall deliver the aggregate Exercise Price for the Ordinary Shares specified in
the applicable Notice of Exercise by wire transfer or cashier’s check drawn on a United States bank unless the cashless
exercise procedure specified in Section 2(c) below is specified in the applicable Notice of Exercise. No ink-original Notice
of Exercise shall be required, nor shall any medallion guarantee (or other type of guarantee or notarization) of any Notice
of Exercise be required. Notwithstanding anything herein to the contrary, the Holder shall not be required to physically
surrender this Warrant to the Company until the Holder has purchased all of the Warrant Shares available hereunder and the
Warrant has been exercised in full, in which case, the Holder shall surrender this Warrant to the Company for cancellation
within three (3) Trading Days of the date on which the final Notice of Exercise is delivered to the Company. Partial
exercises of this Warrant resulting in purchases of a portion of the total number of Warrant Shares available hereunder shall
have the effect of lowering the outstanding number of Warrant Shares purchasable hereunder in an amount equal to the
applicable number of Warrant Shares purchased. The Holder and the Company shall maintain records showing the number of
Warrant Shares purchased and the date of such purchases. The Company shall deliver any objection to any Notice of Exercise
within one (1) Business Day of receipt of such notice. The Holder and any assignee, by acceptance of this Warrant,
acknowledge and agree that, by reason of the provisions of this paragraph, following the purchase of a portion of the Warrant
Shares hereunder, the number of Warrant Shares available for purchase hereunder at any given time may be less than the amount
stated on the face hereof.

 

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b)                 
Exercise Price. The exercise price per Ordinary Share under this Warrant shall be $2.39, subject to adjustment hereunder
(the “Exercise Price”).

 

c)                 
Cashless Exercise. If at the time of exercise hereof there is no effective registration statement registering, or
the prospectus contained therein is not available for the issuance of the Warrant Shares to the Holder, then this Warrant may also
be exercised, in whole or in part, at such time by means of a “cashless exercise” in which the Holder shall be entitled
to receive a number of Warrant Shares equal to the quotient obtained by dividing [(A-B) (X)] by (A), where:

 

(A) =
as applicable: (i) the VWAP on the Trading Day immediately preceding the date of the applicable Notice of Exercise if such Notice
of Exercise is (1) both executed and delivered pursuant to Section 2(a) hereof on a day that is not a Trading Day or (2) both executed
and delivered pursuant to Section 2(a) hereof on a Trading Day prior to the opening of “regular trading hours” (as
defined in Rule 600(b)(68) of Regulation NMS promulgated under the federal securities laws) on such Trading Day, (ii) at the option
of the Holder, either (y) the VWAP on the Trading Day immediately preceding the date of the applicable Notice of Exercise or (z)
the Bid Price of the Ordinary Shares on the principal Trading Market as reported by Bloomberg as of the time of the Holder’s
execution of the applicable Notice of Exercise if such Notice of Exercise 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 2(a) hereof or (iii) the VWAP on the date of the applicable Notice of
Exercise if the date of such Notice of Exercise is a Trading Day and such Notice of Exercise is both executed and delivered pursuant
to Section 2(a) hereof after the close of “regular trading hours” on such Trading Day;

 

(B) = the
Exercise Price of this Warrant, as adjusted hereunder; and

 

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(X) =
the number of Warrant Shares that would be issuable upon exercise of this Warrant in accordance with the terms of this Warrant
if such exercise were by means of a cash exercise rather than a cashless exercise.

 

If
Warrant Shares are issued in such a cashless exercise, the parties acknowledge and agree that in accordance with Section 3(a)(9)
of the Securities Act, the Warrant Shares shall take on the registered characteristics of the Warrants being exercised.  The
Company agrees not to take any position contrary to this Section 2(c) except to the extent required by applicable law, rule or
regulation.

 

d)                 
Mechanics of Exercise.

 

i.            Delivery
of Warrant Shares Upon Exercise. The Company shall cause the Warrant Shares purchased hereunder to be transmitted by the
Transfer Agent to the Holder by crediting the account of the Holder’s or its designee’s balance account with The
Depository Trust Company through its Deposit or Withdrawal at Custodian system (“DWAC”) if the Company is
then a participant in such system and either (A) there is an effective registration statement permitting the issuance of the
Warrant Shares to or resale of the Warrant Shares by Holder or (B) this Warrant is being exercised via cashless exercise, and
otherwise by physical delivery of a certificate, registered in the Company’s share register 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 to the address
specified by the Holder in the Notice of Exercise by the date that is the latest of (i) one (1) Trading Day after the
delivery of the aggregate Exercise Price to the Company and (ii) the number of Trading Days comprising the Standard
Settlement Period after the delivery to the Company of the Notice of Exercise (such date, the “Warrant Share
Delivery Date”). For purposes of Regulation SHO under the Exchange Act, upon delivery of the Notice of Exercise,
the Holder shall be deemed for all corporate purposes to have become the holder of record of the Warrant Shares with respect
to which this Warrant has been exercised, irrespective of the date of delivery of the Warrant Shares, provided that payment
of the aggregate Exercise Price (other than in the case of a cashless exercise) is received within the number of Trading Days
comprising the Standard Settlement Period following delivery of the Notice of Exercise. If the Company fails for any reason
to deliver to the Holder the Warrant Shares subject to a Notice of Exercise by the Warrant Share Delivery Date, the Company
shall pay to the Holder, in cash, as liquidated damages and not as a penalty, for each $1,000 of Warrant Shares subject to
such exercise (based on the VWAP of the Ordinary Shares on the date of the applicable Notice of Exercise), $10 per Trading
Day (increasing to $20 per Trading Day on the fifth Trading Day after such liquidated damages begin to accrue) for each
Trading Day after such Warrant Share Delivery Date until such Warrant Shares are delivered or Holder rescinds such exercise.
The Company agrees to maintain a transfer agent that is a participant in the FAST program so long as this Warrant remains
outstanding and exercisable. As used herein, “Standard Settlement Period” means the standard settlement
period, expressed in a number of Trading Days, on the Company’s primary Trading Market with respect to the Ordinary
Shares as in effect on the date of delivery of the Notice of Exercise. With respect to any Notice(s) of Exercise delivered on
or prior to 10:00 a.m. (New York City time) on the Initial Exercise Date, which Notice(s) of Exercise may be delivered at any
time after the time of execution of the Purchase Agreement, the Company agrees to deliver the Warrant Shares subject to such
notice(s) by 4:00 p.m. (New York City time) on the Initial Exercise Date and the Initial Exercise Date shall be the Warrant
Share Delivery Date for purposes hereunder, provided that the Holder has delivered the aggregate Exercise Price to the
Company in connection with such Notice(s) of Exercise by 10:00 a.m. (New York City time) on the Initial Exercise Date.

 

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ii.           
Delivery of New Warrants Upon Exercise. If this Warrant shall have been exercised in part, the Company shall, at
the request of a Holder and upon surrender of this Warrant certificate, at the time of delivery of the Warrant Shares, deliver
to the Holder a new Warrant evidencing the rights of the Holder to purchase the unpurchased Warrant Shares called for by this Warrant,
which new Warrant shall in all other respects be identical with this Warrant.

 

iii.           
Rescission Rights. If the Company fails to cause the Transfer Agent to transmit to the Holder the Warrant Shares
pursuant to Section 2(d)(i) by the Warrant Share Delivery Date, then the Holder will have the right to rescind such exercise.

 

iv.            Compensation
for Buy-In on Failure to Timely Deliver Warrant Shares Upon Exercise. In addition to any other rights available to the
Holder, if the Company fails to cause the Transfer Agent to transmit to the Holder the Warrant Shares in accordance with the
provisions of Section 2(d)(i) above pursuant to an exercise on or before the Warrant Share Delivery Date (other than a
failure caused by incorrect or incomplete information provided by the Holder to the Company), and if after such date the
Holder is required by its broker to purchase (in an open market transaction or otherwise) or the Holder’s brokerage
firm otherwise purchases, Ordinary Shares to deliver in satisfaction of a sale by the Holder of the Warrant Shares which the
Holder anticipated receiving upon such exercise (a “Buy-In”), then the Company shall (A) pay in cash to
the Holder the amount, if any, by which (x) the Holder’s total purchase price (including brokerage commissions, if any)
for the Ordinary Shares so purchased exceeds (y) the amount obtained by multiplying (1) the number of Warrant Shares that the
Company was required to deliver to the Holder in connection with the exercise at issue times (2) the price at which the sell
order giving rise to such purchase obligation was executed, and (B) at the option of the Holder, either reinstate the portion
of the Warrant and equivalent number of Warrant Shares for which such exercise was not honored (in which case such exercise
shall be deemed rescinded) or deliver to the Holder the number of Ordinary Shares that would have been issued had the Company
timely complied with its exercise and delivery obligations hereunder. For example, if the Holder purchases Ordinary Shares
having a total purchase price of $11,000 to cover a Buy-In with respect to an attempted exercise of Ordinary Shares with an
aggregate sale price giving rise to such purchase obligation of $10,000, under clause (A) of the immediately preceding
sentence the Company shall be required to pay the Holder $1,000. The Holder shall provide the Company written notice within
two (2) Trading Days after the occurrence of a Buy-In indicating the amounts payable to the Holder in respect of the Buy-In
and, upon request of the Company, evidence of the amount of such loss. Nothing herein shall limit a Holder’s right to
pursue any other remedies available to it hereunder, at law or in equity including, without limitation, a decree of specific
performance and/or injunctive relief with respect to the Company’s failure to timely deliver Ordinary Shares upon
exercise of the Warrant as required pursuant to the terms hereof.

 

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v.           
No Fractional Shares or Scrip. No fractional shares or scrip representing fractional shares shall be issued upon
the exercise of this Warrant. As to any fraction of a share which the Holder would otherwise be entitled to purchase upon such
exercise, the Company shall, at its election, either pay a cash adjustment in respect of such final fraction in an amount equal
to such fraction multiplied by the Exercise Price or round down to the next whole share.

 

vi.           Charges,
Taxes and Expenses. Issuance of Warrant Shares shall be made without charge to the Holder for any issue tax or other incidental
expense in respect of the issuance of such Warrant Shares, all of which taxes and expenses shall be paid by the Company, and such
Warrant Shares shall be issued in the name of the Holder or in such name or names as may be directed by the Holder; provided,
however, that, (i) in the event that Warrant Shares are to be issued in a name other than the name of the Holder, this
Warrant when surrendered for exercise shall be accompanied by the Assignment Form attached hereto duly executed by the Holder
and the Company may require, as a condition thereto, the payment of a sum sufficient to reimburse it for any transfer tax incidental
thereto; and (ii) the Company shall use its best efforts to pay, or procure payment of issue or stamp taxes levied in connection
with the issuance of the Warrant or Warrant Shares to the Holder ("Relevant Taxes"). The Holder agrees to cooperate
with the Company and provide all necessary information and documentation to the Company in a timely manner (and in any event within
15 Business Days of request) to enable the Company to procure payment of any Relevant Taxes and facilitate the making of any necessary
filings in respect of Relevant Taxes required to be made within applicable time limits. The Company shall not be liable for any
Relevant Taxes or any penalty, fine, surcharge, interest, charge, cost or other similar imposition arising in respect of Relevant
Taxes to the extent that such amount arises or is increased as a result of any failure by a Holder to timely provide the Company
with any information or documentation requested pursuant to this Section 2(d)(vi). The Company shall pay all Transfer Agent fees
required for processing of any Notice of Exercise and all fees to the Depository Trust Company (or another established clearing
corporation performing similar functions) required for electronic delivery of the Warrant Shares.

 

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vii.           
Closing of Books. The Company will not close its shareholder books or records in any manner which prevents the timely
exercise of this Warrant, pursuant to the terms hereof.

 

e)                  Holder’s
Exercise Limitations. The Company shall not effect any exercise of this Warrant, and a Holder shall not have the right to
exercise any portion of this Warrant, pursuant to Section 2 or otherwise, to the extent that after giving effect to such
issuance after exercise as set forth on the applicable Notice of Exercise, the Holder (together with the Holder’s
Affiliates, and any other Persons acting as a group together with the Holder or any of the Holder’s Affiliates (such
Persons, “Attribution Parties”)), would beneficially own in excess of the Beneficial Ownership Limitation
(as defined below).  For purposes of the foregoing sentence, the number of Ordinary Shares beneficially owned by the
Holder and its Affiliates and Attribution Parties shall include the number of Ordinary Shares issuable upon exercise of this
Warrant with respect to which such determination is being made, but shall exclude the number of Ordinary Shares which would
be issuable upon (i) exercise of the remaining, nonexercised portion of this Warrant beneficially owned by the Holder or any
of its Affiliates or Attribution Parties and (ii) exercise or conversion of the unexercised or nonconverted portion of any
other securities of the Company (including, without limitation, any other Ordinary Share Equivalents) subject to a limitation
on conversion or exercise analogous to the limitation contained herein beneficially owned by the Holder or any of its
Affiliates or Attribution Parties.  Except as set forth in the preceding sentence, for purposes of this Section 2(e),
beneficial ownership shall be calculated in accordance with Section 13(d) of the Exchange Act and the rules and regulations
promulgated thereunder, it being acknowledged by the Holder that the Company is not representing to the Holder that such
calculation is in compliance with Section 13(d) of the Exchange Act and the Holder is solely responsible for any schedules
required to be filed in accordance therewith. To the extent that the limitation contained in this Section 2(e) applies, the
determination of whether this Warrant is exercisable (in relation to other securities owned by the Holder together with any
Affiliates and Attribution Parties) and of which portion of this Warrant is exercisable shall be in the sole discretion of
the Holder, and the submission of a Notice of Exercise shall be deemed to be the Holder’s determination of whether this
Warrant is exercisable (in relation to other securities owned by the Holder together with any Affiliates and Attribution
Parties) and of which portion of this Warrant is exercisable, in each case subject to the Beneficial Ownership Limitation,
and the Company shall have no obligation to verify or confirm the accuracy of such determination. In addition, a
determination as to any group status as contemplated above shall be determined in accordance with Section 13(d) of the
Exchange Act and the rules and regulations promulgated thereunder. For purposes of this Section 2(e), in determining the
number of outstanding Ordinary Shares, a Holder may rely on the number of outstanding Ordinary Shares as reflected in (A) the
Company’s most recent periodic or annual report filed with the Commission, as the case may be, (B) a more recent public
announcement by the Company or (C) a more recent written notice by the Company or the Transfer Agent setting forth the number
of Ordinary Shares outstanding.  Upon the written or oral request of a Holder, the Company shall within one Trading Day
confirm orally and in writing to the Holder the number of Ordinary Shares then outstanding.  In any case, the number of
outstanding Ordinary Shares shall be determined after giving effect to the conversion or exercise of securities of the
Company, including this Warrant, by the Holder or its Affiliates or Attribution Parties since the date as of which such
number of outstanding Ordinary Shares was reported. The “Beneficial Ownership Limitation” shall be [4.99%]
[9.99%] of the number of Ordinary Shares outstanding immediately after giving effect to the issuance of Ordinary Shares
issuable upon exercise of this Warrant. The Holder, upon notice to the Company, may increase or decrease the Beneficial
Ownership Limitation provisions of this Section 2(e), provided that the Beneficial Ownership Limitation in no event exceeds
9.99% of the number of Ordinary Shares outstanding immediately after giving effect to the issuance of Ordinary Shares upon
exercise of this Warrant held by the Holder and the provisions of this Section 2(e) shall continue to apply. Any increase in
the Beneficial Ownership Limitation will not be effective until the 61st day after such notice is delivered to the
Company. The provisions of this paragraph shall be construed and implemented in a manner otherwise than in strict conformity
with the terms of this Section 2(e) to correct this paragraph (or any portion hereof) which may be defective or inconsistent
with the intended Beneficial Ownership Limitation herein contained or to make changes or supplements necessary or desirable
to properly give effect to such limitation. The limitations contained in this paragraph shall apply to a successor holder of
this Warrant.

 

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Section 3.         Certain
Adjustments.

 

a)                  Share
Dividends and Splits. If the Company, at any time while this Warrant is outstanding: (i) pays a share dividend or
otherwise makes a distribution or distributions on its Ordinary Shares payable in Ordinary Shares (which, for avoidance of
doubt, shall not include any Ordinary Shares issued by the Company upon exercise of this Warrant), (ii) subdivides
outstanding Ordinary Shares into a larger number of shares, (iii) combines (including by way of reverse share split)
outstanding Ordinary Shares into a smaller number of shares, or (iv) issues by reclassification of shares of the Ordinary
Shares any share capital of the Company, then in each case the Exercise Price shall be multiplied by a fraction of which the
numerator shall be the number of Ordinary Shares (excluding treasury shares, if any) outstanding immediately before such
event and of which the denominator shall be the number of Ordinary Shares outstanding immediately after such event, and the
number of shares issuable upon exercise of this Warrant shall be proportionately adjusted such that the aggregate Exercise
Price of this Warrant shall remain unchanged. Any adjustment made pursuant to this Section 3(a) shall become effective
immediately after the record date for the determination of shareholders entitled to receive such dividend or distribution and
shall become effective immediately after the effective date in the case of a subdivision, combination or
re-classification.

 

b)                 
Subsequent Rights Offerings. In addition to any adjustments pursuant to Section 3(a) above, if at any time the Company
grants, issues or sells any Ordinary Share Equivalents or rights to purchase shares, warrants, securities or other property pro
rata to the record holders of any class of Ordinary Shares (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 Ordinary Shares acquirable upon complete exercise of this Warrant (without regard
to any limitations on exercise hereof, including without limitation, the Beneficial Ownership Limitation) 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 Ordinary Shares are to be determined for the grant, issue or sale of such Purchase Rights (provided,
however, that, to the extent that the Holder’s right to participate in any such Purchase Right would result in the
Holder exceeding the Beneficial Ownership Limitation, then the Holder shall not be entitled to participate in such Purchase Right
to such extent (or beneficial ownership of such Ordinary Shares as a result of such Purchase Right to such extent) and such Purchase
Right to such extent shall be held in abeyance for the Holder until such time, if ever, as its right thereto would not result in
the Holder exceeding the Beneficial Ownership Limitation).

 

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c)                  Fundamental
Transaction. If, at any time while this Warrant is outstanding, (i) the Company, directly or indirectly, in one or more
related transactions effects any merger or consolidation of the Company with or into another Person, (ii) the Company (and
all of its Subsidiaries, taken as a whole), directly or indirectly, effects any sale, lease, license, assignment, transfer,
conveyance or other disposition of all or substantially all of its assets in one or a series of related transactions, (iii)
any, direct or indirect, purchase offer, tender offer or exchange offer (whether by the Company or another Person) is
completed pursuant to which holders of Ordinary Shares are permitted to sell, tender or exchange their shares for other
securities, cash or property and has been accepted by the holders of 50% or more of the outstanding Ordinary Shares, (iv) the
Company, directly or indirectly, in one or more related transactions effects any reclassification, reorganization or
recapitalization of the Ordinary Shares or any compulsory share exchange pursuant to which the Ordinary Shares are
effectively converted into or exchanged for other securities, cash or property, or (v) the Company, directly or indirectly,
in one or more related transactions consummates a share purchase agreement or other business combination (including, without
limitation, a reorganization, recapitalization, spin-off, merger or scheme of arrangement) with another Person or group of
Persons whereby such other Person or group acquires more than 50% of the outstanding Ordinary Shares (not including any
Ordinary Shares held by the other Person or other Persons making or party to, or associated or affiliated with the other
Persons making or party to, such share purchase agreement or other business combination) (each a “Fundamental
Transaction”), then, upon any subsequent exercise of this Warrant, the Holder shall have the right to receive, for
each Warrant Share that would have been issuable upon such exercise immediately prior to the occurrence of such Fundamental
Transaction, at the option of the Holder (without regard to any limitation in Section 2(e) on the exercise of this Warrant),
the number of Ordinary Shares of the successor or acquiring corporation or of the Company, if it is the surviving
corporation, and any additional consideration (the “Alternate Consideration”) receivable as a result of
such Fundamental Transaction by a holder of the number of Ordinary Shares for which this Warrant is exercisable immediately
prior to such Fundamental Transaction (without regard to any limitation in Section 2(e) on the exercise of this Warrant). For
purposes of any such exercise, the determination of the Exercise Price shall be appropriately adjusted to apply to such
Alternate Consideration based on the amount of Alternate Consideration issuable in respect of one Ordinary Share in such
Fundamental Transaction, and the Company shall apportion the Exercise Price among the Alternate Consideration in a reasonable
manner reflecting the relative value of any different components of the Alternate Consideration. If holders of Ordinary
Shares are given any choice as to the securities, cash or property to be received in a Fundamental Transaction, then the
Holder shall be given the same choice as to the Alternate Consideration it receives upon any exercise of this Warrant
following such Fundamental Transaction. The Company shall cause any successor entity in a Fundamental Transaction in which
the Company is not the survivor (the “Successor Entity”) to assume in writing all of the obligations of
the Company under this Warrant in accordance with the provisions of this Section 3(c) pursuant to written agreements in form
and substance reasonably satisfactory to the Holder and approved by the Holder (without unreasonable delay) prior to such
Fundamental Transaction and shall, at the option of the Holder, 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 which
is exercisable for a corresponding amount of share capital of such Successor Entity (or its parent entity) equivalent to the
Ordinary Shares 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 share capital (but taking into account the relative value of the Ordinary Shares pursuant to such Fundamental
Transaction and the value of such share capital, such amount of share capital 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 occurrence of any such Fundamental Transaction, the Successor Entity shall succeed to, and be substituted for (so that
from and after the date of such 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.

 

    10 

     

    

 

d)                 
 Calculations. All calculations under this Section 3 shall be made to the nearest cent or the nearest 1/100th of
a share, as the case may be. For purposes of this Section 3, the number of Ordinary Shares deemed to be issued and outstanding
as of a given date shall be the sum of the number of Ordinary Shares (excluding treasury shares, if any) issued and outstanding.

 

e)                 
Notice to Holder.

 

i.           
Adjustment to Exercise Price. Whenever the Exercise Price is adjusted pursuant to any provision of this Section 3,
the Company shall promptly deliver to the Holder by facsimile or email a notice setting forth the Exercise Price after such adjustment
and any resulting adjustment to the number of Warrant Shares and setting forth a brief statement of the facts requiring such adjustment.

 

ii.            Notice
to Allow Exercise by Holder. If (A) the Company shall declare a dividend (or any other distribution in whatever form) on
the Ordinary Shares, (B) the Company shall declare a special nonrecurring cash dividend on or a redemption of the Ordinary
Shares, (C) the Company shall authorize the granting to all holders of the Ordinary Shares rights or warrants to subscribe
for or purchase any share capital of any class or of any rights, (D) the approval of any shareholders of the Company shall be
required in connection with any reclassification of the Ordinary Shares, any consolidation or merger to which the Company
(and all of its Subsidiaries, taken as a whole) is a party, any sale or transfer of all or substantially all of the assets of
the Company, or any compulsory share exchange whereby the Ordinary Shares are converted into other securities, cash or
property, or (E) the Company shall authorize the voluntary or involuntary dissolution, liquidation or winding up of the
affairs of the Company, then, in each case, the Company shall cause to be delivered by facsimile or email to the Holder at
its last facsimile number or email address as it shall appear upon the Warrant Register of the Company, at least 20 calendar
days prior to the applicable record or effective date hereinafter specified, a notice stating (x) the date on which a record
is to be taken for the purpose of such dividend, distribution, redemption, rights or warrants, or if a record is not to be
taken, the date as of which the holders of the Ordinary Shares of record to be entitled to such dividend, distributions,
redemption, rights or warrants are to be determined or (y) the date on which such reclassification, consolidation, merger,
sale, transfer or share exchange is expected to become effective or close, and the date as of which it is expected that
holders of the Ordinary Shares of record shall be entitled to exchange their Ordinary Shares for securities, cash or other
property deliverable upon such reclassification, consolidation, merger, sale, transfer or share exchange; provided that the
failure to deliver such notice or any defect therein or in the delivery thereof shall not affect the validity of the
corporate action required to be specified in such notice. To the extent that any notice provided in this Warrant constitutes,
or contains, material, non-public information regarding the Company or any of the Subsidiaries, the Company shall
simultaneously file such notice with the Commission pursuant to a Current Report on Form 8-K. The Holder shall remain
entitled to exercise this Warrant during the period commencing on the date of such notice to the effective date of the event
triggering such notice except as may otherwise be expressly set forth herein.

 

    11 

     

    

 

Section 4.        Transfer
of Warrant.

 

a)                 
Transferability. This Warrant and all rights hereunder (including, without limitation, any registration rights)
are transferable, in whole or in part, upon surrender of this Warrant at the principal office of the Company or its designated
agent, together with a written assignment of this Warrant substantially in the form attached hereto duly executed by the Holder
or its agent or attorney and funds sufficient to pay any transfer taxes payable upon the making of such transfer. Upon such surrender
and, if required, such payment, the Company shall execute and deliver a new Warrant or Warrants in the name of the assignee or
assignees, as applicable, and in the denomination or denominations specified in such instrument of assignment, and shall issue
to the assignor a new Warrant evidencing the portion of this Warrant not so assigned, and this Warrant shall promptly be cancelled.
Notwithstanding anything herein to the contrary, the Holder shall not be required to
physically surrender this Warrant to the Company unless the Holder has assigned this Warrant in full, in which case, the Holder
shall surrender this Warrant to the Company within three (3) Trading Days of the date on which the Holder delivers an assignment
form to the Company assigning this Warrant in full. The Warrant, if properly assigned in accordance herewith, may be exercised
by a new holder for the purchase of Warrant Shares without having a new Warrant issued.

 

b)                 
New Warrants. This Warrant may be divided or combined with other Warrants upon presentation hereof at the aforesaid
office of the Company, together with a written notice specifying the names and denominations in which new Warrants are to be issued,
signed by the Holder or its agent or attorney. Subject to compliance with Section 4(a), as to any transfer which may be involved
in such division or combination, the Company shall execute and deliver a new Warrant or Warrants in exchange for the Warrant or
Warrants to be divided or combined in accordance with such notice. All Warrants issued on transfers or exchanges shall be dated
the initial issuance date of this Warrant and shall be identical with this Warrant except as to the number of Warrant Shares issuable
pursuant thereto.

 

c)                 
Warrant Register. The Company shall register this Warrant, upon records to be maintained by the Company for that
purpose (the “Warrant Register”), in the name of the record Holder hereof from time to time. The Company may
deem and treat the registered Holder of this Warrant as the absolute owner hereof for the purpose of any exercise hereof or any
distribution to the Holder, and for all other purposes, absent actual notice to the contrary.

 

    12 

     

    

 

Section 5.         Miscellaneous.

 

a)                 
No Rights as Shareholder Until Exercise; No Settlement in Cash. This Warrant does not entitle the Holder to any voting
rights, dividends or other rights as a shareholder of the Company prior to the exercise hereof as set forth in Section 2(d)(i),
except as expressly set forth in Section 3. Without limiting any rights of a Holder to receive Warrant Shares on a “cashless
exercise” pursuant to Section 2(c) or to receive cash payments pursuant to Section 2(d)(i) and Section 2(d)(iv) herein, in
no event shall the Company be required to net cash settle an exercise of this Warrant.

 

b)                 
Loss, Theft, Destruction or Mutilation of Warrant. The Company covenants that upon receipt by the Company of evidence
reasonably satisfactory to it of the loss, theft, destruction or mutilation of this Warrant or any share certificate relating to
the Warrant Shares, and in case of loss, theft or destruction, of indemnity or security reasonably satisfactory to it (which, in
the case of the Warrant, shall not include the posting of any bond), and upon surrender and cancellation of such Warrant or share
certificate, if mutilated, the Company will make and deliver a new Warrant or share certificate of like tenor and dated as of such
cancellation, in lieu of such Warrant or share certificate.

 

c)                 
Saturdays, Sundays, Holidays, etc. If the last or appointed day for the taking of any action or the expiration of
any right required or granted herein shall not be a Business Day, then such action may be taken or such right may be exercised
on the next succeeding Business Day.

 

d)                  Authorized
Shares.

 

The Company covenants that, during the period the Warrant is outstanding, it will reserve from its authorized and
unissued Ordinary Shares a sufficient number of shares to provide for the issuance of the Warrant Shares upon the exercise of
any subscription and 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 subscription and 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 Ordinary Shares 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 subscription and purchase rights represented by this Warrant and payment for such Warrant Shares
in accordance herewith, be duly authorized, validly issued, fully paid and not subject to calls for any additional payments
(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).

 

    13 

     

    

 

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 articles of association 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 nominal value of any Warrant Shares above the amount payable
for such Warrant Shares upon exercise of this Warrant immediately prior to such increase in nominal 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.

 

e)            Jurisdiction.
All questions concerning the construction, validity, enforcement and interpretation of this Warrant shall be governed by and construed
and enforced in accordance with the internal laws of the State of New York, without regard to the principles of conflicts of law
thereof. Each party agrees that all legal proceedings concerning the interpretations, enforcement and defense of the transactions
contemplated by this Warrant shall be commenced exclusively in the state and federal courts sitting in the City of New York. Each
party 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 improper or is
an inconvenient venue for such proceeding. Each party hereby irrevocably waives personal service of process and consents to process
being served in any such suit, action or proceeding by mailing a copy thereof via registered or certified mail or overnight delivery
(with evidence of delivery) to such party at the address in effect for notices to it under this Warrant and agrees that such service
shall constitute good and sufficient service of process and notice thereof. Nothing contained herein shall be deemed to limit
in any way any right to serve process in any other manner permitted by law. If either party shall commence an action, suit or
proceeding to enforce any provisions of this Warrant, the prevailing party in such action, suit or proceeding shall be reimbursed
by the other party for their reasonable attorneys’ fees and other costs and expenses incurred with the investigation, preparation
and prosecution of such action or proceeding.

 

    14 

     

    

 

f)                  
Restrictions. The Holder acknowledges that the Warrant Shares acquired upon the exercise of this Warrant, if not
registered, and the Holder does not utilize cashless exercise, will have restrictions upon resale imposed by state and federal
securities laws.

 

g)                 
Nonwaiver and Expenses. No course of dealing or any delay or failure to exercise any right hereunder on the part
of Holder shall operate as a waiver of such right or otherwise prejudice the Holder’s rights, powers or remedies. Without
limiting any other provision of this Warrant, if the Company willfully and knowingly fails to comply with any provision of this
Warrant, which results in any material damages to the Holder, the Company shall pay to the Holder such amounts as shall be sufficient
to cover any costs and expenses including, but not limited to, reasonable attorneys’ fees, including those of appellate proceedings,
incurred by the Holder in collecting any amounts due pursuant hereto or in otherwise enforcing any of its rights, powers or remedies
hereunder.

 

h)                 
Notices. Any and all notices or other communications or deliveries to be provided by the Holders hereunder including,
without limitation, any Notice of Exercise, shall be in writing and delivered personally, by facsimile or e-mail, or sent by a
nationally recognized overnight courier service, addressed to the Company, at (i) in the case of notices sent prior to April 1,
2021: 1000 Continental Drive, Suite 600, King of Prussia, PA 19406 and (ii) in the case of notices sent on or after April 1, 2021:
414 Commerce Drive, Fort Washington, PA 19034 , Attention: Robert Crotty, General Counsel, facsimile number: (610) 816-6639, email
address:                                       , or such other facsimile number, email address or address as the Company may specify for such
purposes by notice to the Holders. Any and all notices or other communications or deliveries to be provided by the Company hereunder
shall be in writing and delivered personally, by facsimile or e-mail, or sent by a nationally recognized overnight courier service
addressed to each Holder at the facsimile number, e-mail address or address of such Holder appearing on the books of the Company.
Any notice or other communication or deliveries hereunder shall be deemed given and effective on the earliest of (i) the time of
transmission, if such notice or communication is delivered via facsimile at the facsimile number or via e-mail at the e-mail address
set forth in this Section prior to 5:30 p.m. (New York City time) on any date, (ii) the next Trading Day after the time of transmission,
if such notice or communication is delivered via facsimile at the facsimile number or via e-mail at the e-mail address set forth
in this Section on a day that is not a Trading Day or later than 5:30 p.m. (New York City time) on any Trading Day, (iii) the second
Trading Day following the date of mailing, if sent by U.S. nationally recognized overnight courier service, or (iv) upon actual
receipt by the party to whom such notice is required to be given.

 

i)                   Limitation
of Liability. No provision hereof, in the absence of any affirmative action by the Holder to exercise this Warrant to
purchase Warrant Shares, and no enumeration herein of the rights or privileges of the Holder, shall give rise to any
liability of the Holder for the purchase price of any Ordinary Shares or as a shareholder of the Company, whether such
liability is asserted by the Company or by creditors of the Company.

 

    15 

     

    

 

j)                  
Remedies. The Holder, in addition to being entitled to exercise all rights granted by law, including recovery of
damages, will be entitled to specific performance of its rights under this Warrant. The Company agrees that monetary damages would
not be adequate compensation for any loss incurred by reason of a breach by it of the provisions of this Warrant and hereby agrees
to waive and not to assert the defense in any action for specific performance that a remedy at law would be adequate.

 

k)                 
Successors and Assigns. Subject to applicable securities laws, this Warrant and the rights and obligations evidenced
hereby shall inure to the benefit of and be binding upon the successors and permitted assigns of the Company and the successors
and permitted assigns of Holder. The provisions of this Warrant are intended to be for the benefit of any Holder from time to time
of this Warrant and shall be enforceable by the Holder or holder of Warrant Shares.

 

l)                  
Company Acknowledgement. The Company acknowledges that, if the Company has received the aggregate nominal amount
of the Ordinary Shares issuable upon exercise of this Warrant, the Company shall hold such aggregate nominal amount in trust pursuant
to Section 4.9 of the Purchase Agreement and shall apply it in payment of the nominal value of the Ordinary Shares issued in connection
with exercises of this Warrant pursuant to Section 2(c) herein.

 

m)                 Amendment. This Warrant may be modified or amended or the provisions hereof waived with the written consent of the
Company and the Holder.

 

n)                  
Severability. Wherever possible, each provision of this Warrant shall be interpreted in such manner as to be effective
and valid under applicable law, but if any provision of this Warrant shall be prohibited by or invalid under applicable law, such
provision shall be ineffective to the extent of such prohibition or invalidity, without invalidating the remainder of such provisions
or the remaining provisions of this Warrant.

 

o)                 
Headings. The headings used in this Warrant are for the convenience of reference only and shall not, for any purpose,
be deemed a part of this Warrant.

 

********************

 

(Signature Page Follows)

 

 

    16 

     

    

 

IN WITNESS WHEREOF, the
Company has caused this Warrant to be executed by its officer thereunto duly authorized as of the date first above indicated.

 

	 	Nabriva Therapeutics plc
	 	 
	 	By:	 
	 	 	Name:
	 	 	Title:

 

    17 

     

    

 

NOTICE OF EXERCISE

 

To:     Nabriva
Therapeutics plc

 

(1)  
The undersigned hereby elects to subscribe for and purchase ________ Warrant Shares of the Company pursuant to the terms
of the attached Warrant (only if exercised in full), and tenders herewith payment of the exercise price in full, together with
all applicable transfer taxes, if any.

 

(2)  
Payment shall take the form of (check applicable box):

 

 ̈ in lawful
money of the United States; or

 

  ̈
if permitted, the cancellation of such number of Warrant Shares as is necessary, in accordance with the formula set forth in
subsection 2(c), to exercise this Warrant with respect to the maximum number of Warrant Shares purchasable pursuant to the
cashless exercise procedure set forth in subsection 2(c).

 

(3)  
Please issue said Warrant Shares in the name of the undersigned or in such other name as is specified below:

 

_______________________________

 

The Warrant Shares shall be delivered to
the following DWAC Account Number:

 

_______________________________

 

_______________________________

 

_______________________________

 

[SIGNATURE
OF HOLDER]

 

	Name of Investing Entity:	 

 

	Signature of Authorized Signatory of Investing Entity:	 

 

	Name of Authorized Signatory:	 

 

	Title of Authorized Signatory:	 

 

	Date:	 

 

    

     

    

 

EXHIBIT B

 

ASSIGNMENT
FORM

(To assign the
foregoing Warrant, execute this form and supply required information. Do not use this form to purchase shares.)

 

FOR VALUE RECEIVED,
the foregoing Warrant and all rights evidenced thereby are hereby assigned to

 

	Name: 	 
	 	  (Please Print)
	 	 
	Address: 	 
	 	 (Please Print) 
	 	 
	Phone Number:  	 
	 	 
	Email Address:	 
	 	 
	Dated: _______________ __, ______	 
	 	 
	Holder’s Signature:  	 	 
	 	 	 
	Holder’s Address:Exhibit 4.2 

 

EXHIBIT C-2

 

ORDINARY SHARE PRE-FUNDED PURCHASE WARRANT

 

Nabriva
Therapeutics plc

 

	Warrant Shares: _______	Initial Exercise Date: March __, 2021
	 	Issue Date: March __, 2021

 

THIS ORDINARY SHARE PRE-FUNDED
PURCHASE WARRANT (the “Warrant”) certifies that, for value received by the Company, _____________ or its assigns
(the “Holder”) is entitled, upon the terms and subject to the limitations on exercise and the conditions hereinafter
set forth, at any time on or after March __2021 (the “Initial Exercise Date”) until this Warrant is exercised
in full (the “Termination Date”) but not thereafter, to subscribe for and purchase from Nabriva Therapeutics
plc, an Irish incorporated public limited company (the “Company”), up to ______ Ordinary Shares (as subject
to adjustment hereunder, the “Warrant Shares”). The purchase price of one Ordinary Share under this Warrant
shall be equal to the Exercise Price, as defined in Section 2(b).

 
	 	Section 1.	Definitions. In addition to the terms defined elsewhere
    in this Warrant, the following terms have the meanings indicated in this Section 1:

 

“Affiliate”
means any Person that, directly or indirectly through one or more intermediaries, controls or is controlled by or is under common
control with a Person, as such terms are used in and construed under Rule 405 under the Securities Act.

 

“Bid
Price” means, for any date, the price determined by the first of the following clauses that applies: (a) if the Ordinary
Shares are then listed or quoted on a Trading Market, the bid price of the Ordinary Shares for the time in question (or the nearest
preceding date) on the Trading Market on which the Ordinary Shares are then listed or quoted as reported by Bloomberg (based on
a Trading Day from 9:30 a.m. (New York City time) to 4:02 p.m. (New York City time)), (b)  if OTCQB or OTCQX is not a Trading
Market, the volume weighted average price of the Ordinary Shares for such date (or the nearest preceding date) on OTCQB or OTCQX
as applicable, (c) if the Ordinary Shares are not then listed or quoted for trading on OTCQB or OTCQX and if prices for the Ordinary
Shares are then reported on The Pink Open Market (or a similar organization or agency succeeding to its functions of reporting
prices), the most recent bid price per Ordinary Share so reported, or (d) in all other cases, the fair market value of an
Ordinary Share as determined by an independent appraiser selected in good faith by the Purchasers of a majority in interest of
the Securities then outstanding and reasonably acceptable to the Company, the fees and expenses of which shall be paid by the Company.

 

“Bloomberg”
means Bloomberg L.P.

 

    1

     

    

 

“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; provided, however, for clarification, commercial banks shall not be deemed to
be authorized or required by law to remain closed due to “stay at home”, “shelter-in-place”, “non-essential
employee”  or any other similar orders or restrictions or the closure of any physical branch locations at the direction
of any governmental authority so long as the electronic funds transfer systems (including for wire transfers) of commercial banks
in The City of New York generally are open for use by customers on such day.

 

“Commission”
means the United States Securities and Exchange Commission.

 

“Exchange
Act” means the Securities Exchange Act of 1934, as amended, and the rules and regulations promulgated thereunder.

 

“Person”
means an individual or corporation, partnership, trust, incorporated or unincorporated association, joint venture, limited liability
company, joint share company, government (or an agency or subdivision thereof) or other entity of any kind.

 

“Ordinary
Share” means the ordinary shares of the Company, nominal value $0.01 per share, and any other class of securities into
which such securities may hereafter be reclassified or changed.

 

“Ordinary
Share Equivalents” means any securities of the Company or the Subsidiaries which would entitle the holder thereof to
acquire at any time Ordinary Shares, including, without limitation, any debt, preferred share, right, option, warrant or other
instrument that is at any time convertible into or exercisable or exchangeable for, or otherwise entitles the holder thereof to
receive, Ordinary Shares.

 

“Purchase
Agreement” means that certain Securities Purchase Agreement, dated March 1, 2021, among the Company and the purchasers
signatory thereto.

 

“Registration
Statement” means the Company’s registration statement on Form S-3 (File No. 333-248530).

 

“Securities
Act” means the Securities Act of 1933, as amended, and the rules and regulations promulgated thereunder.

 

“Subsidiary”
means any subsidiary of the Company and shall, where applicable, also include any direct or indirect subsidiary of the Company
formed or acquired after the date hereof.

 

“Trading
Day” means a day on which the Ordinary Shares are traded on a Trading Market.

 

“Trading
Market” means any of the following markets or exchanges on which the Ordinary Shares are listed or quoted for
trading on the date in question: the NYSE American, the Nasdaq Capital Market, the Nasdaq Global Market, the Nasdaq Global
Select Market or the New York Stock Exchange (or any successors to any of the foregoing).

 

    2

     

    

 

“Transfer
Agent” means Computershare Trust Company,
N.A., the current transfer agent of the Company, and any successor transfer agent of the Company.

 

“VWAP”
means, for any date, the price determined by the first of the following clauses that applies: (a) if the Ordinary Shares are then
listed or quoted on a Trading Market, the daily volume weighted average price of the Ordinary Shares for such date (or the nearest
preceding date) on the Trading Market on which the Ordinary Shares are then listed or quoted as reported by Bloomberg (based on
a Trading Day from 9:30 a.m. (New York City time) to 4:02 p.m. (New York City time), (b)  if OTCQB or OTCQX is not a Trading
Market, the volume weighted average price of the Ordinary Shares for such date (or the nearest preceding date) on OTCQB or OTCQX
as applicable, (c) if the Ordinary Shares are not then listed or quoted for trading on OTCQB or OTCQX and if prices for the Ordinary
Shares are then reported on The Pink Open Market (or a similar organization or agency succeeding to its functions of reporting
prices), the most recent bid price per share of the Ordinary Shares so reported, or (d) in all other cases, the fair market
value of an Ordinary Share as determined by an independent appraiser selected in good faith by the Purchasers of a majority in
interest of the Securities then outstanding and reasonably acceptable to the Company, the fees and expenses of which shall be paid
by the Company.

 

“Warrants”
means this Warrant and other Warrants issued by the Company pursuant to the Registration Statement.

 
	 	Section 2.	Exercise.

 

a)                  Exercise
of Warrant. Exercise of the subscription and purchase rights represented by this Warrant may be made, in whole or in
part, at any time or times on or after the Initial Exercise Date and on or before the Termination Date by delivery to the
Company of a duly executed facsimile copy or PDF copy submitted by e-mail (or e-mail attachment) of the Notice of Exercise in
the form annexed hereto (the “Notice of Exercise”). Within the earlier of (i) two (2) Trading Days and
(ii) the number of Trading Days comprising the Standard Settlement Period (as defined in Section 2(d)(i) herein) following
the date of exercise as aforesaid, the Holder shall deliver the aggregate Exercise Price for the Ordinary Shares specified in
the applicable Notice of Exercise by wire transfer or cashier’s check drawn on a United States bank unless the cashless
exercise procedure specified in Section 2(c) below is specified in the applicable Notice of Exercise. No ink-original Notice
of Exercise shall be required, nor shall any medallion guarantee (or other type of guarantee or notarization) of any Notice
of Exercise be required. Notwithstanding anything herein to the contrary, the Holder shall not be required to physically
surrender this Warrant to the Company until the Holder has purchased all of the Warrant Shares available hereunder and the
Warrant has been exercised in full, in which case, the Holder shall surrender this Warrant to the Company for cancellation
within three (3) Trading Days of the date on which the final Notice of Exercise is delivered to the Company. Partial
exercises of this Warrant resulting in purchases of a portion of the total number of Warrant Shares available hereunder shall
have the effect of lowering the outstanding number of Warrant Shares purchasable hereunder in an amount equal to the
applicable number of Warrant Shares purchased. The Holder and the Company shall maintain records showing the number of
Warrant Shares purchased and the date of such purchases. The Company shall deliver any objection to any Notice of Exercise
within one (1) Business Day of receipt of such notice. The Holder and any assignee, by acceptance of this Warrant,
acknowledge and agree that, by reason of the provisions of this paragraph, following the purchase of a portion of the Warrant
Shares hereunder, the number of Warrant Shares available for purchase hereunder at any given time may be less than the amount
stated on the face hereof.

 

    3

     

    

 

b)                 
Exercise Price. The aggregate exercise price of this Warrant, except for a nominal exercise price of $0.01 per Warrant
Share, was pre-funded to the Company on or prior to the Initial Exercise Date and, consequently, no additional consideration (other
than the nominal exercise price of $0.01 per Warrant Share) shall be required to be paid by the Holder to any Person to effect
any exercise of this Warrant. The Holder shall not be entitled to the return or refund of all, or any portion, of such pre-paid
aggregate exercise price under any circumstance or for any reason whatsoever, including in the event this Warrant shall not have
been exercised prior to the Termination Date. The remaining unpaid exercise price per Ordinary Share under this Warrant shall be
$0.01, subject to adjustment hereunder (the “Exercise Price”).

 

c)                 
Cashless Exercise. This Warrant may
be exercised, in whole or in part, at such time by means of a “cashless exercise” in which the Holder shall be entitled
to receive a number of Warrant Shares equal to the quotient obtained by dividing [(A-B) (X)] by (A), where:

 

(A)
= as applicable: (i) the VWAP on the Trading Day immediately preceding the date of the applicable Notice of Exercise if such
Notice of Exercise is (1) both executed and delivered pursuant to Section 2(a) hereof on a day that is not a Trading Day or
(2) both executed and delivered pursuant to Section 2(a) hereof on a Trading Day prior to the opening of “regular
trading hours” (as defined in Rule 600(b)(68) of Regulation NMS promulgated under the federal securities laws) on such
Trading Day, (ii) at the option of the Holder, either (y) the VWAP on the Trading Day immediately preceding the date of the
applicable Notice of Exercise or (z) the Bid Price of the Ordinary Shares on the principal Trading Market as reported by
Bloomberg as of the time of the Holder’s execution of the applicable Notice of Exercise if such Notice of Exercise 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
2(a) hereof or (iii) the VWAP on the date of the applicable Notice of Exercise if the date of such Notice of Exercise is a
Trading Day and such Notice of Exercise is both executed and delivered pursuant to Section 2(a) hereof after the close of
 “regular trading hours” on such Trading Day;

 

    4

     

    

 

(B) = the
Exercise Price of this Warrant, as adjusted hereunder; and

 

(X) =
the number of Warrant Shares that would be issuable upon exercise of this Warrant in accordance with the terms of this Warrant
if such exercise were by means of a cash exercise rather than a cashless exercise.

 

If
Warrant Shares are issued in such a cashless exercise, the parties acknowledge and agree that in accordance with Section 3(a)(9)
of the Securities Act, the Warrant Shares shall take on the registered characteristics of the Warrants being exercised.  The
Company agrees not to take any position contrary to this Section 2(c) except to the extent required by applicable law, rule or
regulation.

 

d)                 
Mechanics of Exercise.

 

i.            Delivery
of Warrant Shares Upon Exercise. The Company shall cause the Warrant Shares purchased hereunder to be transmitted by the
Transfer Agent to the Holder by crediting the account of the Holder’s or its designee’s balance account with The
Depository Trust Company through its Deposit or Withdrawal at Custodian system (“DWAC”) if the Company is
then a participant in such system and either (A) there is an effective registration statement permitting the issuance of the
Warrant Shares to or resale of the Warrant Shares by Holder or (B) this Warrant is being exercised via cashless exercise, and
otherwise by physical delivery of a certificate, registered in the Company’s share register 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 to the address
specified by the Holder in the Notice of Exercise by the date that is the latest of (i) one (1) Trading Day after the
delivery of the aggregate Exercise Price to the Company and (ii) the number of Trading Days comprising the Standard
Settlement Period after the delivery to the Company of the Notice of Exercise (such date, the “Warrant Share
Delivery Date”). For purposes of Regulation SHO under the Exchange Act, upon delivery of the Notice of Exercise,
the Holder shall be deemed for all corporate purposes to have become the holder of record of the Warrant Shares with respect
to which this Warrant has been exercised, irrespective of the date of delivery of the Warrant Shares, provided that payment
of the aggregate Exercise Price (other than in the case of a cashless exercise) is received within the number of Trading Days
comprising the Standard Settlement Period following delivery of the Notice of Exercise. If the Company fails for any reason
to deliver to the Holder the Warrant Shares subject to a Notice of Exercise by the Warrant Share Delivery Date, the Company
shall pay to the Holder, in cash, as liquidated damages and not as a penalty, for each $1,000 of Warrant Shares subject to
such exercise (based on the VWAP of the Ordinary Shares on the date of the applicable Notice of Exercise), $10 per Trading
Day (increasing to $20 per Trading Day on the fifth Trading Day after such liquidated damages begin to accrue) for each
Trading Day after such Warrant Share Delivery Date until such Warrant Shares are delivered or Holder rescinds such exercise.
The Company agrees to maintain a transfer agent that is a participant in the FAST program so long as this Warrant remains
outstanding and exercisable. As used herein, “Standard Settlement Period” means the standard settlement
period, expressed in a number of Trading Days, on the Company’s primary Trading Market with respect to the Ordinary
Shares as in effect on the date of delivery of the Notice of Exercise. With respect to any Notice(s) of Exercise delivered on
or prior to 10:00 a.m. (New York City time) on the Initial Exercise Date, which Notice(s) of Exercise may be delivered at any
time after the time of execution of the Purchase Agreement, the Company agrees to deliver the Warrant Shares subject to such
notice(s) by 4:00 p.m. (New York City time) on the Initial Exercise Date and the Initial Exercise Date shall be the Warrant
Share Delivery Date for purposes hereunder, provided that the Holder has delivered the aggregate Exercise Price to the
Company in connection with such Notice(s) of Exercise by 10:00 a.m. (New York City time) on the Initial Exercise Date.

 

    5

     

    

 

ii.           
Delivery of New Warrants Upon Exercise. If this Warrant shall have been exercised in part, the Company shall, at
the request of a Holder and upon surrender of this Warrant certificate, at the time of delivery of the Warrant Shares, deliver
to the Holder a new Warrant evidencing the rights of the Holder to purchase the unpurchased Warrant Shares called for by this Warrant,
which new Warrant shall in all other respects be identical with this Warrant.

 

iii.           
Rescission Rights. If the Company fails to cause the Transfer Agent to transmit to the Holder the Warrant Shares
pursuant to Section 2(d)(i) by the Warrant Share Delivery Date, then the Holder will have the right to rescind such exercise.

 

iv.            Compensation
for Buy-In on Failure to Timely Deliver Warrant Shares Upon Exercise. In addition to any other rights available to the
Holder, if the Company fails to cause the Transfer Agent to transmit to the Holder the Warrant Shares in accordance with the
provisions of Section 2(d)(i) above pursuant to an exercise on or before the Warrant Share Delivery Date (other than a
failure caused by incorrect or incomplete information provided by the Holder to the Company), and if after such date the
Holder is required by its broker to purchase (in an open market transaction or otherwise) or the Holder’s brokerage
firm otherwise purchases, Ordinary Shares to deliver in satisfaction of a sale by the Holder of the Warrant Shares which the
Holder anticipated receiving upon such exercise (a “Buy-In”), then the Company shall (A) pay in cash to
the Holder the amount, if any, by which (x) the Holder’s total purchase price (including brokerage commissions, if any)
for the Ordinary Shares so purchased exceeds (y) the amount obtained by multiplying (1) the number of Warrant Shares that the
Company was required to deliver to the Holder in connection with the exercise at issue times (2) the price at which the sell
order giving rise to such purchase obligation was executed, and (B) at the option of the Holder, either reinstate the portion
of the Warrant and equivalent number of Warrant Shares for which such exercise was not honored (in which case such exercise
shall be deemed rescinded) or deliver to the Holder the number of Ordinary Shares that would have been issued had the Company
timely complied with its exercise and delivery obligations hereunder. For example, if the Holder purchases Ordinary Shares
having a total purchase price of $11,000 to cover a Buy-In with respect to an attempted exercise of Ordinary Shares with an
aggregate sale price giving rise to such purchase obligation of $10,000, under clause (A) of the immediately preceding
sentence the Company shall be required to pay the Holder $1,000. The Holder shall provide the Company written notice within
two (2) Trading Days after the occurrence of a Buy-In indicating the amounts payable to the Holder in respect of the Buy-In
and, upon request of the Company, evidence of the amount of such loss. Nothing herein shall limit a Holder’s right to
pursue any other remedies available to it hereunder, at law or in equity including, without limitation, a decree of specific
performance and/or injunctive relief with respect to the Company’s failure to timely deliver Ordinary Shares upon
exercise of the Warrant as required pursuant to the terms hereof.

 

    6

     

    

 

v.           
No Fractional Shares or Scrip. No fractional shares or scrip representing fractional shares shall be issued upon
the exercise of this Warrant. As to any fraction of a share which the Holder would otherwise be entitled to purchase upon such
exercise, the Company shall, at its election, either pay a cash adjustment in respect of such final fraction in an amount equal
to such fraction multiplied by the Exercise Price or round down to the next whole share.

 

vi.
           Charges, Taxes and Expenses. Issuance of Warrant Shares
shall be made without charge to the Holder for any issue tax or other incidental expense in respect of the issuance of such
Warrant Shares, all of which taxes and expenses shall be paid by the Company, and such Warrant Shares shall be issued in the
name of the Holder or in such name or names as may be directed by the Holder; provided, however, that, (i) in
the event that Warrant Shares are to be issued in a name other than the name of the Holder, this Warrant when surrendered for
exercise shall be accompanied by the Assignment Form attached hereto duly executed by the Holder and the Company may require,
as a condition thereto, the payment of a sum sufficient to reimburse it for any transfer tax incidental thereto; and (ii) the
Company shall use its best efforts to pay, or procure payment of issue or stamp taxes levied in connection with the issuance
of the Warrant or Warrant Shares to the Holder ("Relevant Taxes"). The Holder agrees to cooperate with the
Company and provide all necessary information and documentation to the Company in a timely manner (and in any event within 15
Business Days of request) to enable the Company to procure payment of any Relevant Taxes and facilitate the making of any
necessary filings in respect of Relevant Taxes required to be made within applicable time limits. The Company shall not be
liable for any Relevant Taxes or any penalty, fine, surcharge, interest, charge, cost or other similar imposition arising in
respect of Relevant Taxes to the extent that such amount arises or is increased as a result of any failure by a Holder to
timely provide the Company with any information or documentation requested pursuant to this Section 2(d)(vi). The Company
shall pay all Transfer Agent fees required for processing of any Notice of Exercise and all fees to the Depository Trust
Company (or another established clearing corporation performing similar functions) required for electronic delivery of the
Warrant Shares.

 

vii.          
Closing of Books. The Company will not close its shareholder books or records in any manner which prevents the timely
exercise of this Warrant, pursuant to the terms hereof.

 

e)                  Holder’s
Exercise Limitations. The Company shall not effect any exercise of this Warrant, and a Holder shall not have the right to
exercise any portion of this Warrant, pursuant to Section 2 or otherwise, to the extent that after giving effect to such
issuance after exercise as set forth on the applicable Notice of Exercise, the Holder (together with the Holder’s
Affiliates, and any other Persons acting as a group together with the Holder or any of the Holder’s Affiliates (such
Persons, “Attribution Parties”)), would beneficially own in excess of the Beneficial Ownership Limitation
(as defined below).  For purposes of the foregoing sentence, the number of Ordinary Shares beneficially owned by the
Holder and its Affiliates and Attribution Parties shall include the number of Ordinary Shares issuable upon exercise of this
Warrant with respect to which such determination is being made, but shall exclude the number of Ordinary Shares which would
be issuable upon (i) exercise of the remaining, nonexercised portion of this Warrant beneficially owned by the Holder or any
of its Affiliates or Attribution Parties and (ii) exercise or conversion of the unexercised or nonconverted portion of any
other securities of the Company (including, without limitation, any other Ordinary Share Equivalents) subject to a limitation
on conversion or exercise analogous to the limitation contained herein beneficially owned by the Holder or any of its
Affiliates or Attribution Parties.  Except as set forth in the preceding sentence, for purposes of this Section 2(e),
beneficial ownership shall be calculated in accordance with Section 13(d) of the Exchange Act and the rules and regulations
promulgated thereunder, it being acknowledged by the Holder that the Company is not representing to the Holder that such
calculation is in compliance with Section 13(d) of the Exchange Act and the Holder is solely responsible for any schedules
required to be filed in accordance therewith. To the extent that the limitation contained in this Section 2(e) applies, the
determination of whether this Warrant is exercisable (in relation to other securities owned by the Holder together with any
Affiliates and Attribution Parties) and of which portion of this Warrant is exercisable shall be in the sole discretion of
the Holder, and the submission of a Notice of Exercise shall be deemed to be the Holder’s determination of whether this
Warrant is exercisable (in relation to other securities owned by the Holder together with any Affiliates and Attribution
Parties) and of which portion of this Warrant is exercisable, in each case subject to the Beneficial Ownership Limitation,
and the Company shall have no obligation to verify or confirm the accuracy of such determination. In addition, a
determination as to any group status as contemplated above shall be determined in accordance with Section 13(d) of the
Exchange Act and the rules and regulations promulgated thereunder. For purposes of this Section 2(e), in determining the
number of outstanding Ordinary Shares, a Holder may rely on the number of outstanding Ordinary Shares as reflected in (A) the
Company’s most recent periodic or annual report filed with the Commission, as the case may be, (B) a more recent public
announcement by the Company or (C) a more recent written notice by the Company or the Transfer Agent setting forth the number
of Ordinary Shares outstanding.  Upon the written or oral request of a Holder, the Company shall within one Trading Day
confirm orally and in writing to the Holder the number of Ordinary Shares then outstanding.  In any case, the number of
outstanding Ordinary Shares shall be determined after giving effect to the conversion or exercise of securities of the
Company, including this Warrant, by the Holder or its Affiliates or Attribution Parties since the date as of which such
number of outstanding Ordinary Shares was reported. The “Beneficial Ownership Limitation” shall be [4.99%]
[9.99%] of the number of Ordinary Shares outstanding immediately after giving effect to the issuance of Ordinary Shares
issuable upon exercise of this Warrant. The Holder, upon notice to the Company, may increase or decrease the Beneficial
Ownership Limitation provisions of this Section 2(e), provided that the Beneficial Ownership Limitation in no event exceeds
9.99% of the number of Ordinary Shares outstanding immediately after giving effect to the issuance of Ordinary Shares upon
exercise of this Warrant held by the Holder and the provisions of this Section 2(e) shall continue to apply. Any increase in
the Beneficial Ownership Limitation will not be effective until the 61st day after such notice is delivered to the
Company. The provisions of this paragraph shall be construed and implemented in a manner otherwise than in strict conformity
with the terms of this Section 2(e) to correct this paragraph (or any portion hereof) which may be defective or inconsistent
with the intended Beneficial Ownership Limitation herein contained or to make changes or supplements necessary or desirable
to properly give effect to such limitation. The limitations contained in this paragraph shall apply to a successor holder of
this Warrant.

 

    7

     

    

 

	 	Section 3.	Certain Adjustments.

 

a)                  Share
Dividends and Splits. If the Company, at any time while this Warrant is outstanding: (i) pays a share dividend or
otherwise makes a distribution or distributions on its Ordinary Shares payable in Ordinary Shares (which, for avoidance of
doubt, shall not include any Ordinary Shares issued by the Company upon exercise of this Warrant), (ii) subdivides
outstanding Ordinary Shares into a larger number of shares, (iii) combines (including by way of reverse share split)
outstanding Ordinary Shares into a smaller number of shares, or (iv) issues by reclassification of shares of the Ordinary
Shares any share capital of the Company, then in each case the Exercise Price shall be multiplied by a fraction of which the
numerator shall be the number of Ordinary Shares (excluding treasury shares, if any) outstanding immediately before such
event and of which the denominator shall be the number of Ordinary Shares outstanding immediately after such event, and the
number of shares issuable upon exercise of this Warrant shall be proportionately adjusted such that the aggregate Exercise
Price of this Warrant shall remain unchanged. Any adjustment made pursuant to this Section 3(a) shall become effective
immediately after the record date for the determination of shareholders entitled to receive such dividend or distribution and
shall become effective immediately after the effective date in the case of a subdivision, combination or
re-classification.

 

    8

     

    

 

b)                 
Subsequent Rights Offerings. In addition to any adjustments pursuant to Section 3(a) above, if at any time the Company
grants, issues or sells any Ordinary Share Equivalents or rights to purchase shares, warrants, securities or other property pro
rata to the record holders of any class of Ordinary Shares (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 Ordinary Shares acquirable upon complete exercise of this Warrant (without regard
to any limitations on exercise hereof, including without limitation, the Beneficial Ownership Limitation) 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 Ordinary Shares are to be determined for the grant, issue or sale of such Purchase Rights (provided,
however, that, to the extent that the Holder’s right to participate in any such Purchase Right would result in the
Holder exceeding the Beneficial Ownership Limitation, then the Holder shall not be entitled to participate in such Purchase Right
to such extent (or beneficial ownership of such Ordinary Shares as a result of such Purchase Right to such extent) and such Purchase
Right to such extent shall be held in abeyance for the Holder until such time, if ever, as its right thereto would not result in
the Holder exceeding the Beneficial Ownership Limitation).

 

    9

     

    

 

c)                  Fundamental
Transaction. If, at any time while this Warrant is outstanding, (i) the Company, directly or indirectly, in one or more
related transactions effects any merger or consolidation of the Company with or into another Person, (ii) the Company (and
all of its Subsidiaries, taken as a whole), directly or indirectly, effects any sale, lease, license, assignment, transfer,
conveyance or other disposition of all or substantially all of its assets in one or a series of related transactions, (iii)
any, direct or indirect, purchase offer, tender offer or exchange offer (whether by the Company or another Person) is
completed pursuant to which holders of Ordinary Shares are permitted to sell, tender or exchange their shares for other
securities, cash or property and has been accepted by the holders of 50% or more of the outstanding Ordinary Shares, (iv) the
Company, directly or indirectly, in one or more related transactions effects any reclassification, reorganization or
recapitalization of the Ordinary Shares or any compulsory share exchange pursuant to which the Ordinary Shares are
effectively converted into or exchanged for other securities, cash or property, or (v) the Company, directly or indirectly,
in one or more related transactions consummates a share purchase agreement or other business combination (including, without
limitation, a reorganization, recapitalization, spin-off, merger or scheme of arrangement) with another Person or group of
Persons whereby such other Person or group acquires more than 50% of the outstanding Ordinary Shares (not including any
Ordinary Shares held by the other Person or other Persons making or party to, or associated or affiliated with the other
Persons making or party to, such share purchase agreement or other business combination) (each a “Fundamental
Transaction”), then, upon any subsequent exercise of this Warrant, the Holder shall have the right to receive, for
each Warrant Share that would have been issuable upon such exercise immediately prior to the occurrence of such Fundamental
Transaction, at the option of the Holder (without regard to any limitation in Section 2(e) on the exercise of this Warrant),
the number of Ordinary Shares of the successor or acquiring corporation or of the Company, if it is the surviving
corporation, and any additional consideration (the “Alternate Consideration”) receivable as a result of
such Fundamental Transaction by a holder of the number of Ordinary Shares for which this Warrant is exercisable immediately
prior to such Fundamental Transaction (without regard to any limitation in Section 2(e) on the exercise of this Warrant). For
purposes of any such exercise, the determination of the Exercise Price shall be appropriately adjusted to apply to such
Alternate Consideration based on the amount of Alternate Consideration issuable in respect of one Ordinary Share in such
Fundamental Transaction, and the Company shall apportion the Exercise Price among the Alternate Consideration in a reasonable
manner reflecting the relative value of any different components of the Alternate Consideration. If holders of Ordinary
Shares are given any choice as to the securities, cash or property to be received in a Fundamental Transaction, then the
Holder shall be given the same choice as to the Alternate Consideration it receives upon any exercise of this Warrant
following such Fundamental Transaction. The Company shall cause any successor entity in a Fundamental Transaction in which
the Company is not the survivor (the “Successor Entity”) to assume in writing all of the obligations of
the Company under this Warrant in accordance with the provisions of this Section 3(c) pursuant to written agreements in form
and substance reasonably satisfactory to the Holder and approved by the Holder (without unreasonable delay) prior to such
Fundamental Transaction and shall, at the option of the Holder, 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 which
is exercisable for a corresponding amount of share capital of such Successor Entity (or its parent entity) equivalent to the
Ordinary Shares 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 share capital (but taking into account the relative value of the Ordinary Shares pursuant to such Fundamental
Transaction and the value of such share capital, such amount of share capital 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 occurrence of any such Fundamental Transaction, the Successor Entity shall succeed to, and be substituted for (so that
from and after the date of such 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.

 

    10

     

    

 

d)                 
Calculations. All calculations under this Section 3 shall be made to the nearest cent or the nearest 1/100th of a
share, as the case may be. For purposes of this Section 3, the number of Ordinary Shares deemed to be issued and outstanding as
of a given date shall be the sum of the number of Ordinary Shares (excluding treasury shares, if any) issued and outstanding.

 

e)                 
Notice to Holder.

 

i.             
Adjustment to Exercise Price. Whenever the Exercise Price is adjusted pursuant to any provision of this Section 3,
the Company shall promptly deliver to the Holder by facsimile or email a notice setting forth the Exercise Price after such adjustment
and any resulting adjustment to the number of Warrant Shares and setting forth a brief statement of the facts requiring such adjustment.

 

ii.            Notice
to Allow Exercise by Holder. If (A) the Company shall declare a dividend (or any other distribution in whatever form) on
the Ordinary Shares, (B) the Company shall declare a special nonrecurring cash dividend on or a redemption of the Ordinary
Shares, (C) the Company shall authorize the granting to all holders of the Ordinary Shares rights or warrants to subscribe
for or purchase any share capital of any class or of any rights, (D) the approval of any shareholders of the Company shall be
required in connection with any reclassification of the Ordinary Shares, any consolidation or merger to which the Company
(and all of its Subsidiaries, taken as a whole) is a party, any sale or transfer of all or substantially all of the assets of
the Company, or any compulsory share exchange whereby the Ordinary Shares are converted into other securities, cash or
property, or (E) the Company shall authorize the voluntary or involuntary dissolution, liquidation or winding up of the
affairs of the Company, then, in each case, the Company shall cause to be delivered by facsimile or email to the Holder at
its last facsimile number or email address as it shall appear upon the Warrant Register of the Company, at least 20 calendar
days prior to the applicable record or effective date hereinafter specified, a notice stating (x) the date on which a record
is to be taken for the purpose of such dividend, distribution, redemption, rights or warrants, or if a record is not to be
taken, the date as of which the holders of the Ordinary Shares of record to be entitled to such dividend, distributions,
redemption, rights or warrants are to be determined or (y) the date on which such reclassification, consolidation, merger,
sale, transfer or share exchange is expected to become effective or close, and the date as of which it is expected that
holders of the Ordinary Shares of record shall be entitled to exchange their Ordinary Shares for securities, cash or other
property deliverable upon such reclassification, consolidation, merger, sale, transfer or share exchange; provided that the
failure to deliver such notice or any defect therein or in the delivery thereof shall not affect the validity of the
corporate action required to be specified in such notice. To the extent that any notice provided in this Warrant constitutes,
or contains, material, non-public information regarding the Company or any of the Subsidiaries, the Company shall
simultaneously file such notice with the Commission pursuant to a Current Report on Form 8-K. The Holder shall remain
entitled to exercise this Warrant during the period commencing on the date of such notice to the effective date of the event
triggering such notice except as may otherwise be expressly set forth herein.

 

    11

     

    

 
	 	Section 4.	Transfer of Warrant.

 

a)                 
Transferability. This Warrant and all rights hereunder (including, without limitation, any registration rights)
are transferable, in whole or in part, upon surrender of this Warrant at the principal office of the Company or its designated
agent, together with a written assignment of this Warrant substantially in the form attached hereto duly executed by the Holder
or its agent or attorney and funds sufficient to pay any transfer taxes payable upon the making of such transfer. Upon such surrender
and, if required, such payment, the Company shall execute and deliver a new Warrant or Warrants in the name of the assignee or
assignees, as applicable, and in the denomination or denominations specified in such instrument of assignment, and shall issue
to the assignor a new Warrant evidencing the portion of this Warrant not so assigned, and this Warrant shall promptly be cancelled.
Notwithstanding anything herein to the contrary, the Holder shall not be required to
physically surrender this Warrant to the Company unless the Holder has assigned this Warrant in full, in which case, the Holder
shall surrender this Warrant to the Company within three (3) Trading Days of the date on which the Holder delivers an assignment
form to the Company assigning this Warrant in full. The Warrant, if properly assigned in accordance herewith, may be exercised
by a new holder for the purchase of Warrant Shares without having a new Warrant issued.

 

b)                 
New Warrants. This Warrant may be divided or combined with other Warrants upon presentation hereof at the aforesaid
office of the Company, together with a written notice specifying the names and denominations in which new Warrants are to be issued,
signed by the Holder or its agent or attorney. Subject to compliance with Section 4(a), as to any transfer which may be involved
in such division or combination, the Company shall execute and deliver a new Warrant or Warrants in exchange for the Warrant or
Warrants to be divided or combined in accordance with such notice. All Warrants issued on transfers or exchanges shall be dated
the initial issuance date of this Warrant and shall be identical with this Warrant except as to the number of Warrant Shares issuable
pursuant thereto.

 

    12

     

    

 

c)                 
Warrant Register. The Company shall register this Warrant, upon records to be maintained by the Company for that
purpose (the “Warrant Register”), in the name of the record Holder hereof from time to time. The Company may
deem and treat the registered Holder of this Warrant as the absolute owner hereof for the purpose of any exercise hereof or any
distribution to the Holder, and for all other purposes, absent actual notice to the contrary.

 
	 	Section 5.	Miscellaneous.

 

a)                 
No Rights as Shareholder Until Exercise; No Settlement in Cash. This Warrant does not entitle the Holder to any voting
rights, dividends or other rights as a shareholder of the Company prior to the exercise hereof as set forth in Section 2(d)(i),
except as expressly set forth in Section 3. Without limiting any rights of a Holder to receive Warrant Shares on a “cashless
exercise” pursuant to Section 2(c) or to receive cash payments pursuant to Section 2(d)(i) and Section 2(d)(iv) herein, in
no event shall the Company be required to net cash settle an exercise of this Warrant.

 

b)                 Loss,
Theft, Destruction or Mutilation of Warrant. The Company covenants that upon receipt by the Company of evidence reasonably
satisfactory to it of the loss, theft, destruction or mutilation of this Warrant or any share certificate relating to the Warrant
Shares, and in case of loss, theft or destruction, of indemnity or security reasonably satisfactory to it (which, in the case
of the Warrant, shall not include the posting of any bond), and upon surrender and cancellation of such Warrant or share certificate,
if mutilated, the Company will make and deliver a new Warrant or share certificate of like tenor and dated as of such cancellation,
in lieu of such Warrant or share certificate.

 

c)                 
Saturdays, Sundays, Holidays, etc. If the last or appointed day for the taking of any action or the expiration of
any right required or granted herein shall not be a Business Day, then such action may be taken or such right may be exercised
on the next succeeding Business Day.

 

d)                 
Authorized Shares.

 

The Company
covenants that, during the period the Warrant is outstanding, it will reserve from its authorized and unissued Ordinary
Shares a sufficient number of shares to provide for the issuance of the Warrant Shares upon the exercise of any subscription
and 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
subscription and 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 Ordinary Shares 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
subscription and purchase rights represented by this Warrant and payment for such Warrant Shares in accordance herewith, be
duly authorized, validly issued, fully paid and not subject to calls for any additional payments (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).

 

    13

     

    

 

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 articles of association 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 nominal value of any Warrant Shares above the amount payable
for such Warrant Shares upon exercise of this Warrant immediately prior to such increase in nominal 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.

 

e)             Jurisdiction.
All questions concerning the construction, validity, enforcement and interpretation of this Warrant shall be governed by and construed
and enforced in accordance with the internal laws of the State of New York, without regard to the principles of conflicts of law
thereof. Each party agrees that all legal proceedings concerning the interpretations, enforcement and defense of the transactions
contemplated by this Warrant shall be commenced exclusively in the state and federal courts sitting in the City of New York. Each
party 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 improper or is
an inconvenient venue for such proceeding. Each party hereby irrevocably waives personal service of process and consents to process
being served in any such suit, action or proceeding by mailing a copy thereof via registered or certified mail or overnight delivery
(with evidence of delivery) to such party at the address in effect for notices to it under this Warrant and agrees that such service
shall constitute good and sufficient service of process and notice thereof. Nothing contained herein shall be deemed to limit
in any way any right to serve process in any other manner permitted by law. If either party shall commence an action, suit or
proceeding to enforce any provisions of this Warrant, the prevailing party in such action, suit or proceeding shall be reimbursed
by the other party for their reasonable attorneys’ fees and other costs and expenses incurred with the investigation, preparation
and prosecution of such action or proceeding.

 

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f)              Restrictions.
The Holder acknowledges that the Warrant Shares acquired upon the exercise of this Warrant, if not registered, and the Holder
does not utilize cashless exercise, will have restrictions upon resale imposed by state and federal securities laws.

 

g)             Nonwaiver
and Expenses. No course of dealing or any delay or failure to exercise any right hereunder on the part of Holder shall operate
as a waiver of such right or otherwise prejudice the Holder’s rights, powers or remedies. Without limiting any other provision
of this Warrant, if the Company willfully and knowingly fails to comply with any provision of this Warrant, which results in any
material damages to the Holder, the Company shall pay to the Holder such amounts as shall be sufficient to cover any costs and
expenses including, but not limited to, reasonable attorneys’ fees, including those of appellate proceedings, incurred by
the Holder in collecting any amounts due pursuant hereto or in otherwise enforcing any of its rights, powers or remedies hereunder.

 

h)             Notices.
Any and all notices or other communications or deliveries to be provided by the Holders hereunder including, without limitation,
any Notice of Exercise, shall be in writing and delivered personally, by facsimile or e-mail, or sent by a nationally recognized
overnight courier service, addressed to the Company, at (i) in the case of notices sent prior to April 1, 2021: 1000 Continental
Drive, Suite 600, King of Prussia, PA 19406 and (ii) in the case of notices sent on or after April 1, 2021: 414 Commerce Drive,
Fort Washington, PA 19034 , Attention: Robert Crotty, General Counsel, facsimile number: (610) 816-6639, email address:                                      ,
or such other facsimile number, email address or address as the Company may specify for such purposes by notice to the Holders.
Any and all notices or other communications or deliveries to be provided by the Company hereunder shall be in writing and delivered
personally, by facsimile or e-mail, or sent by a nationally recognized overnight courier service addressed to each Holder at the
facsimile number, e-mail address or address of such Holder appearing on the books of the Company. Any notice or other communication
or deliveries hereunder shall be deemed given and effective on the earliest of (i) the time of transmission, if such notice or
communication is delivered via facsimile at the facsimile number or via e-mail at the e-mail address set forth in this Section
prior to 5:30 p.m. (New York City time) on any date, (ii) the next Trading Day after the time of transmission, if such notice
or communication is delivered via facsimile at the facsimile number or via e-mail at the e-mail address set forth in this Section
on a day that is not a Trading Day or later than 5:30 p.m. (New York City time) on any Trading Day, (iii) the second Trading Day
following the date of mailing, if sent by U.S. nationally recognized overnight courier service, or (iv) upon actual receipt by
the party to whom such notice is required to be given.

 

    15

     

    

 

i)              Limitation
of Liability. No provision hereof, in the absence of any affirmative action by the Holder to exercise this Warrant to purchase
Warrant Shares, and no enumeration herein of the rights or privileges of the Holder, shall give rise to any liability of the Holder
for the purchase price of any Ordinary Shares or as a shareholder of the Company, whether such liability is asserted by the Company
or by creditors of the Company.

 

j)              Remedies.
The Holder, in addition to being entitled to exercise all rights granted by law, including recovery of damages, will be entitled
to specific performance of its rights under this Warrant. The Company agrees that monetary damages would not be adequate compensation
for any loss incurred by reason of a breach by it of the provisions of this Warrant and hereby agrees to waive and not to assert
the defense in any action for specific performance that a remedy at law would be adequate.

 

k)             Successors
and Assigns. Subject to applicable securities laws, this Warrant and the rights and obligations evidenced hereby shall inure
to the benefit of and be binding upon the successors and permitted assigns of the Company and the successors and permitted assigns
of Holder. The provisions of this Warrant are intended to be for the benefit of any Holder from time to time of this Warrant and
shall be enforceable by the Holder or holder of Warrant Shares.

 

l)              Company
Acknowledgement. The Company acknowledges that, if the Company has received the aggregate nominal amount of the Ordinary Shares
issuable upon exercise of this Warrant, the Company shall hold such aggregate nominal amount in trust pursuant to Section 4.9
of the Purchase Agreement and shall apply it in payment of the nominal value of the Ordinary Shares issued in connection with
exercises of this Warrant pursuant to Section 2(c) herein.

 

m)            Amendment.
This Warrant may be modified or amended or the provisions hereof waived with the written consent of the Company and the Holder.

 

n)             Severability.
Wherever possible, each provision of this Warrant shall be interpreted in such manner as to be effective and valid under applicable
law, but if any provision of this Warrant shall be prohibited by or invalid under applicable law, such provision shall be ineffective
to the extent of such prohibition or invalidity, without invalidating the remainder of such provisions or the remaining provisions
of this Warrant.

 

    16

     

    

 

o)                 
 Headings. The headings used in this Warrant are for the convenience of reference only and shall not, for any purpose,
be deemed a part of this Warrant.

 

 

********************

 

(Signature Page Follows)

 

 

    17

     

    

 

IN WITNESS WHEREOF, the
Company has caused this Warrant to be executed by its officer thereunto duly authorized as of the date first above indicated.

 

	 	Nabriva Therapeutics plc
	 	 
	 	By: 	 
	 	 	Name:
	 	 	Title:  

 

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NOTICE OF EXERCISE

 
	To:	Nabriva Therapeutics plc

 

(1)  
The undersigned hereby elects to subscribe for and purchase ________ Warrant Shares of the Company pursuant to the terms
of the attached Warrant (only if exercised in full), and tenders herewith payment of the exercise price in full, together with
all applicable transfer taxes, if any.

 

(2)  
Payment shall take the form of (check applicable box):

 

  ̈
in lawful money of the United States; or

 

  ̈
if permitted, the cancellation of such number of Warrant Shares as is necessary, in accordance with the formula set forth in
subsection 2(c), to exercise this Warrant with respect to the maximum number of Warrant Shares purchasable pursuant to the
cashless exercise procedure set forth in subsection 2(c).

 

(3) 
Please issue said Warrant Shares in the name of the undersigned or in such other name as is specified below:

 

_______________________________

 

 

The Warrant Shares shall be delivered to
the following DWAC Account Number:

 

_______________________________

 

_______________________________

 

_______________________________

 

 

[SIGNATURE
OF HOLDER]

 

	Name of Investing Entity:	 

 

	Signature of Authorized Signatory of Investing Entity:	 

 

	Name of Authorized Signatory:	 

 

	Title of Authorized Signatory:	 

 

	Date:	 

 

    

     

    

 

EXHIBIT B

 

 

ASSIGNMENT
FORM

(To assign the
foregoing Warrant, execute this form and supply required information. Do not use this form to purchase shares.)

 

FOR VALUE RECEIVED,
the foregoing Warrant and all rights evidenced thereby are hereby assigned to

 

	Name: 	 
	 	  (Please Print)
	 	 
	Address: 	 
	 	 (Please Print) 
	 	 
	Phone Number:  	 
	 	 
	 Email Address:	 
	 	 
	Dated: _______________ __, ______	 
	 	 
	Holder’s Signature:  	 	 
	 	 	 
	Holder’s Address:

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