Document:

Exhibit
4.1

 

Execution
Copy 

 

REGISTRATION
RIGHTS AGREEMENT

 

THIS
REGISTRATION RIGHTS AGREEMENT (this “Agreement”), dated as of September 24, 2021, is made by and between NABRIVA
THERAPEUTICS PLC, an Irish incorporated public limited company (the “Company”), and LINCOLN PARK CAPITAL FUND,
LLC, an Illinois limited liability company (together with its
permitted assigns, the “Buyer”). Capitalized terms used herein and not otherwise defined herein shall have the respective
meanings set forth in the Purchase Agreement by and between the parties hereto, dated as of the date hereof (as amended, restated, supplemented
or otherwise modified from time to time, the “Purchase Agreement”).

 

WHEREAS:

 

The
Company has the right, upon the terms and subject to the conditions of the Purchase Agreement, to allot and issue to the Buyer up to
Twenty-Three Million Dollars ($23,000,000) of Purchase Shares and to induce the Buyer to enter into the Purchase Agreement, the Company
has agreed to provide certain registration rights under the Securities Act of 1933, as amended, and the rules and regulations thereunder
(collectively, the “Securities Act”), and applicable state securities laws.

 

NOW,
THEREFORE, in consideration of the promises and the mutual covenants contained herein and other good and valuable consideration,
the receipt and sufficiency of which are hereby acknowledged, the Company and the Buyer hereby agree as follows:

 

1.            DEFINITIONS.

 

As
used in this Agreement, the following terms shall have the following meanings:

 

a.       “Investor”
means the Buyer, any transferee or assignee thereof to whom the Buyer assigns its rights under this Agreement in accordance with Section
9 and who agrees to become bound by the provisions of this Agreement, and any transferee or assignee thereof to whom a transferee
or assignee assigns its rights under this Agreement in accordance with Section 9 and who agrees to become bound by the provisions
of this Agreement.

 

b.       “Person”
means any individual or entity including but not limited to any corporation, a limited liability company, an association, a partnership,
an organization, a business, an individual, a governmental or political subdivision thereof or a governmental agency.

 

c.       “Register,”
 “registered,” and “registration” refer to a registration effected by preparing and filing one or
more registration statements of the Company in compliance with the Securities Act and pursuant to Rule 415 under the Securities Act or
any successor rule providing for offering securities on a continuous basis (“Rule 415”), and the declaration or ordering
of effectiveness of such registration statement(s) by the United States Securities and Exchange Commission (the “SEC”).

 

d.       “Registrable
Securities” means all of the Commitment Shares and the Purchase Shares that may, from time to time, be issued or become issuable
to the Investor under the Purchase Agreement (without regard to any limitation or restriction on purchases), and any and all Ordinary
Shares issued or issuable with respect to the Purchase Shares or the Commitment Shares or the Purchase Agreement as a result of any share
split, reverse share split, share dividend, recapitalization, exchange or similar event or otherwise, without regard to any limitation
on purchases under the Purchase Agreement.

 

e.       “Registration
Statement” means one or more registration statements of the Company covering only the resale of the Registrable Securities.

 

    

     

    

 

2.            REGISTRATION.

 

a.       Mandatory
Registration. The Company shall, within ten (10) Business Days from the date of this Agreement, file with the SEC an initial Registration
Statement on Form S-1 covering the maximum number of Registrable Securities as the Company shall be permitted to be included thereon
in accordance with applicable SEC rules, regulations and interpretations so as to permit the resale of such Registrable Securities by
the Investor under Rule 415 under the Securities Act at then prevailing market prices (and not fixed prices), as mutually determined
by both the Company and the Investor in consultation with their respective legal counsel (in any case including all of the Commitment
Shares), subject to the aggregate number of authorized shares of the Company’s Ordinary Shares then available for issuance under
its Memorandum and Articles of Association. The initial Registration Statement shall register only the Registrable Securities. The Investor
and its counsel shall have a reasonable opportunity to review and comment upon such Registration Statement and any amendment or supplement
to such Registration Statement and any related prospectus prior to its filing with the SEC, and the Company shall give due consideration
to all comments. The Investor acknowledges that it will be identified in the initial Registration Statement as an underwriter within
the meaning of Section 2(a)(11) of the Securities Act and shall furnish all information reasonably requested by the Company for inclusion
therein. The Company shall use reasonable best efforts to have the Registration Statement and any amendment declared effective by the
SEC as soon as practicable. The Company shall use reasonable best efforts to keep the Registration Statement effective pursuant to Rule
415 promulgated under the Securities Act and available for the resale by the Investor of all of the Registrable Securities covered thereby
at all times until the earlier of (i) the date on which the Investor shall have resold all the Registrable Securities covered thereby
and no Available Amount remains under the Purchase Agreement and (ii) 180 days following the earlier of (A) the Maturity Date and (B)
the date of termination of the Purchase Agreement (the “Registration Period”). The Registration Statement (including
any amendments or supplements thereto and prospectuses contained therein) shall not contain any untrue statement of a material fact or
omit to state a material fact required to be stated therein, or necessary to make the statements therein, in light of the circumstances
in which they were made, not misleading.

 

b.       Rule
424 Prospectus. The Company shall, as required by applicable securities regulations, from time to time file with the SEC, pursuant
to Rule 424 promulgated under the Securities Act, the prospectus and prospectus supplements, if any, to be used in connection with resales
of the Registrable Securities by the Buyer under the Registration Statement. The Investor and its counsel shall have a reasonable opportunity
to review and comment upon such prospectus prior to its filing with the SEC, and the Company shall give due consideration to all comments.
The Investor shall use its reasonable best efforts to provide any such comments within one (1) Business Day from the date the Investor
receives the final pre-filing version of such prospectus.

 

c.       Sufficient
Number of Shares Registered. In the event the number of shares available under the Registration Statement is insufficient to cover
all of the Registrable Securities, the Company shall file an amendment to the Registration Statement or file a new Registration Statement
(a “New Registration Statement”), so as to cover all of such Registrable Securities (subject to the limitations set
forth in Section 2(a)) as soon as practicable, but in any event not later than ten (10) Business Days after the necessity arises,
subject to any limits that may be imposed by the SEC pursuant to Rule 415 under the Securities Act and subject to Section 12 of this
Agreement. The Company shall use its commercially reasonable efforts to cause such amendment and/or New Registration Statement to become
effective as soon as practicable following the filing thereof.

 

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d.     
Offering. If the staff of the SEC (the “Staff”) or the SEC seeks to characterize any offering pursuant to a
Registration Statement filed pursuant to this Agreement as constituting an offering of securities that does not permit such Registration
Statement to become effective and be used for resales by the Investor under Rule 415 at then-prevailing market prices (and not fixed
prices), or if after the filing of the initial Registration Statement with the SEC pursuant to Section 2(a), the Company is otherwise
required by the Staff or the SEC to reduce the number of Registrable Securities included in such initial Registration Statement, then
the Company shall reduce the number of Registrable Securities to be included in such initial Registration Statement (with the prior consent,
which shall not be unreasonably withheld, delayed or conditioned, of the Investor and its legal counsel as to the specific Registrable
Securities to be removed therefrom) until such time as the Staff and the SEC shall so permit such Registration Statement to become effective
and be used as aforesaid. In the event of any reduction in Registrable Securities pursuant to this paragraph, the Company shall use commercially
reasonable efforts to file one or more New Registration Statements in accordance with Section 2(c) until such time as all Registrable
Securities have been included in Registration Statements that have been declared effective and the prospectus contained therein is available
for use by the Investor. Notwithstanding any provision herein or in the Purchase Agreement to the contrary, the Company’s obligations
to register Registrable Securities (and any related conditions to the Investor’s obligations) shall be qualified as necessary to
comport with any requirement of the SEC or the Staff as addressed in this Section 2(d).

 

3.             RELATED
OBLIGATIONS.

 

With
respect to the Registration Statement and whenever any Registrable Securities are to be registered pursuant to Section 2, including
on any New Registration Statement, the Company shall use its commercially reasonable efforts to effect the registration of the Registrable
Securities in accordance with the intended method of disposition thereof and, pursuant thereto, the Company shall have the following
obligations:

 

a.       The
Company shall prepare and file with the SEC such amendments (including post-effective amendments) and supplements to any Registration
Statement and the prospectus used in connection with such Registration Statement, which prospectus is to be filed pursuant to Rule 424
promulgated under the Securities Act, as may be necessary to keep the Registration Statement or any New Registration Statement effective
at all times during the Registration Period, and, during such period, comply with the provisions of the Securities Act with respect to
the disposition of all Registrable Securities of the Company covered by the Registration Statement or any New Registration Statement
until such time as all of such Registrable Securities shall have been disposed of in accordance with the intended methods of disposition
by the Investor as set forth in such Registration Statement.

 

b.       The
Company shall permit the Investor to review and comment upon the Registration Statement or any New Registration Statement and all amendments
and supplements thereto at least two (2) Business Days prior to their filing with the SEC, and not file any document in a form to which
Investor reasonably objects. The Investor shall use its commercially reasonable efforts to comment upon the Registration Statement or
any New Registration Statement and any amendments or supplements thereto within two (2) Business Days from the date the Investor receives
the final version thereof. The Company shall furnish to the Investor, without charge any correspondence from the SEC or the staff of
the SEC to the Company or its representatives relating to the Registration Statement or any New Registration Statement.

 

c.       Upon
request of the Investor, the Company shall furnish to the Investor, (i) promptly after the same is prepared and filed with the SEC,
at least one copy of such Registration Statement and any amendment(s) thereto, including financial statements and schedules, all
documents incorporated therein by reference and all exhibits, (ii) upon the effectiveness of any Registration Statement, a copy of
the prospectus included in such Registration Statement and all amendments and supplements thereto (or such other number of copies as
the Investor may reasonably request) and (iii) such other documents, including copies of any preliminary or final prospectus, as the
Investor may reasonably request from time to time in order to facilitate the disposition of the Registrable Securities owned by the
Investor. For the avoidance of doubt, any filing available to the Investor via the SEC’s live EDGAR system shall be deemed
 “furnished to the Investor” hereunder.

 

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d.       The
Company shall use commercially reasonable efforts to (i) register and qualify the Registrable Securities covered by a Registration Statement
under such other securities or “blue sky” laws of such jurisdictions in the United States as the Investor reasonably requests,
(ii) prepare and file in those jurisdictions, such amendments (including post-effective amendments) and supplements to such registrations
and qualifications as may be necessary to maintain the effectiveness thereof during the Registration Period, (iii) take such other actions
as may be necessary to maintain such registrations and qualifications in effect at all times during the Registration Period, and (iv)
take all other actions reasonably necessary or advisable to qualify the Registrable Securities for sale in such jurisdictions; provided,
however, that the Company shall not be required in connection therewith or as a condition thereto to (x) qualify to do business in any
jurisdiction where it would not otherwise be required to qualify but for this Section 3(d), (y) subject itself to general taxation
in any such jurisdiction, or (z) file a general consent to service of process in any such jurisdiction. The Company shall promptly notify
the Investor who holds Registrable Securities of the receipt by the Company of any notification with respect to the suspension of the
registration or qualification of any of the Registrable Securities for sale under the securities or “blue sky” laws of any
jurisdiction in the United States or its receipt of actual notice of the initiation or threatening of any proceeding for such purpose.

 

e.       As
promptly as practicable after becoming aware of such event or facts, the Company shall notify the Investor of the happening of any event
or existence of such facts as a result of which the prospectus included in any Registration Statement, as then in effect, includes an
untrue statement of a material fact or omits to state a material fact required to be stated therein or necessary to make the statements
therein, in light of the circumstances under which they were made, not misleading (provided that in no event shall such notice contain
any material, non-public information regarding the Company), and promptly prepare a supplement or amendment to such Registration Statement
to correct such untrue statement or omission, and deliver a copy of such supplement or amendment to the Investor (or such other number
of copies as the Investor may reasonably request). The Company shall also promptly notify the Investor in writing (i) when a prospectus
or any prospectus supplement or post-effective amendment has been filed, and when a Registration Statement or any post-effective amendment
has become effective (notification of such effectiveness shall be delivered to the Investor by email or facsimile on the same day of
such effectiveness or by overnight mail), (ii) of any request by the SEC for amendments or supplements to any Registration Statement
or related prospectus or related information, and (iii) of the Company’s reasonable determination that a post-effective amendment
to a Registration Statement would be appropriate.

 

f.       The
Company shall use its commercially reasonable efforts to prevent the issuance of any stop order or other suspension of effectiveness
of any Registration Statement, or the suspension of the qualification of any Registrable Securities for sale in any jurisdiction and,
if such an order or suspension is issued, to obtain the withdrawal of such order or suspension as soon as practical and to notify the
Investor of the issuance of such order and the resolution thereof or its receipt of actual notice of the initiation or threat of any
proceeding for such purpose.

 

g.       The
Company shall (i) cause all the Registrable Securities to be listed on each securities exchange on which securities of the same
class or series issued by the Company are then listed, if any, if the listing of such Registrable Securities is then permitted under
the rules of such exchange, or (ii) secure designation and quotation of all the Registrable Securities on the Principal Market. The
Company shall pay all fees and expenses in connection with satisfying its obligation under this Section 3(g).

 

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h.       The
Company shall comply with Section 6(b) of the Purchase Agreement with respect to the issuance of Registrable Securities.

 

i.        The
Company shall at all times provide a transfer agent and registrar with respect to its Ordinary Shares.

 

j.        If
reasonably requested by the Investor, the Company shall (i) as soon as practicable after receipt of written notice from the Investor,
incorporate in a prospectus supplement or post-effective amendment such information as the Investor reasonably believes necessary to
be included therein relating to the sale and distribution of Registrable Securities, including, without limitation, information with
respect to the number of Registrable Securities being sold, the purchase price being paid therefor and any other terms of the offering
of the Registrable Securities; (ii) make all required filings of such prospectus supplement or post-effective amendment as soon as practicable
after being notified of the matters to be incorporated in such prospectus supplement or post-effective amendment; and (iii) supplement
or make amendments to any Registration Statement.

 

k.       The
Company shall use its commercially reasonable efforts to cause the Registrable Securities covered by any Registration Statement to be
registered with or approved by such other governmental agencies or authorities as may be necessary to consummate the disposition of such
Registrable Securities.

l.        Within
one (1) Business Day after any Registration Statement which includes the Registrable Securities is declared effective by the SEC, the
Company shall deliver, and shall, if necessary, cause its legal counsel for the Company to deliver, to the transfer agent for such Registrable
Securities (with copies to the Investor) confirmation that such Registration Statement has been declared effective by the SEC in a form
acceptable to the transfer agent. Thereafter, if reasonably requested by the Buyer at any time, the Company (acting directly or through
its counsel) shall deliver to the Buyer, which may be via e-mail, a written confirmation whether or not the effectiveness of such Registration
Statement has lapsed at any time for any reason (including, without limitation, the issuance of a stop order by the SEC) and whether
or not the Registration Statement is available to the Buyer for sale of all of the Registrable Securities.

 

m.      Company
agrees to take all other reasonable actions as necessary and reasonably requested in writing by the Investor to expedite and facilitate
disposition by the Investor of the Registrable Securities pursuant to any Registration Statement.

 

4.            OBLIGATIONS
OF THE INVESTOR.

 

a.       The
Company shall notify the Investor in writing of the information the Company reasonably requires from the Investor in connection with
any Registration Statement or New Registration Statement hereunder. The Investor shall as soon as practicable furnish to the Company
such information regarding itself, the Registrable Securities held by it and the intended method of disposition of the Registrable Securities
held by it as shall be reasonably required to effect the registration of such Registrable Securities and shall execute such documents
in connection with such registration as the Company may reasonably request.

 

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b.       The
Investor agrees to cooperate with the Company as reasonably requested by the Company in connection with the preparation and filing of
any Registration Statement or New Registration Statement hereunder and any amendments and supplements thereto.

 

c.       The
Investor agrees that, upon receipt of any notice from the Company of the happening of any event or existence of facts of the kind described
in Section 3(f) or the first sentence of 3(e), the Investor will immediately discontinue disposition of Registrable Securities
pursuant to any Registration Statement(s) covering such Registrable Securities until the Investor’s receipt of the copies of a
notice regarding the resolution or withdrawal of the stop order or suspension as contemplated by Section 3(f) or the supplemented
or amended prospectus as contemplated by the first sentence of 3(e). Notwithstanding anything to the contrary, the Company shall
cause its transfer agent to promptly deliver Ordinary Shares without any restrictive legend in accordance with the terms of the Purchase
Agreement in connection with any sale of Registrable Securities with respect to which an Investor has entered into a contract for sale
prior to the Investor’s receipt of a notice from the Company to the Investor of the happening of any event of the kind described
in Section 3(f) or the first sentence of Section 3(e) and for which the Investor has not yet settled.

 

5.             EXPENSES
OF REGISTRATION.

 

The
Company shall pay, or procure the payment of all reasonable expenses, other than sales or brokerage commissions and fees and disbursements
of counsel for, and other expenses of, the Investor, incurred in connection with registrations, filings or qualifications pursuant to
Sections 2 and 3, including, without limitation, all registration, listing and qualifications fees, printers and accounting
fees, and fees and disbursements of counsel for the Company.

 

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6.            INDEMNIFICATION.

 

a.       To
the fullest extent permitted by law, the Company will, and hereby does, indemnify, hold harmless and defend the Investor, each
Person, if any, who controls the Investor, the members, directors, officers, partners, employees, agents, managers, and
representatives of the Investor and each Person, if any, who controls the Investor within the meaning of the Securities Act or the
Securities Exchange Act of 1934, as amended (the “Exchange Act”) (each, an “Indemnified
Person”), against any losses, claims, damages, liabilities, judgments, fines, penalties, charges, costs, reasonable
attorneys’ fees, amounts paid in settlement (with the consent of the Company, such consent not to be unreasonably withheld) or
reasonable expenses, joint or several, (collectively, “Claims”) reasonably incurred in investigating, preparing
or defending any action, claim, suit, inquiry, proceeding, investigation or appeal taken from the foregoing by or before any court
or governmental, administrative or other regulatory agency, body or the SEC, whether pending or threatened, whether or not an
indemnified party is or may be a party thereto (“Indemnified Damages”), to which any of them may become subject
insofar as such Claims (or actions or proceedings, whether commenced or threatened, in respect thereof) arise out of or are based
upon: (i) any untrue statement or alleged untrue statement of a material fact in the Registration Statement, any New Registration
Statement or any post-effective amendment thereto or in any filing made in connection with the qualification of the offering under
the securities or other “blue sky” laws of any jurisdiction in which Registrable Securities are offered, or the omission
or alleged omission to state a material fact required to be stated therein or necessary to make the statements therein not
misleading, (ii) any untrue statement or alleged untrue statement of a material fact contained in the final prospectus (as amended
or supplemented, if the Company files any amendment thereof or supplement thereto with the SEC) or the omission or alleged omission
to state therein any material fact necessary to make the statements made therein, in light of the circumstances under which the
statements therein were made, not misleading, (iii) any violation or alleged violation by the Company of the Securities Act, the
Exchange Act, any other law, including, without limitation, any state securities law, or any rule or regulation thereunder relating
to the offer or sale of the Registrable Securities pursuant to the Registration Statement or any New Registration Statement or (iv)
any material violation by the Company of this Agreement (the matters in the foregoing clauses (i) through (iv) being, collectively,
 “Violations”). The Company shall reimburse each Indemnified Person promptly as such expenses are incurred and are
due and payable, for any reasonable and documented legal fees or other reasonable expenses incurred by them in connection with
investigating or defending any such Claim. Notwithstanding anything to the contrary contained herein, the indemnification agreement
contained in this Section 6(a): (i) shall not apply to a Claim by an Indemnified Person arising out of or based upon a
Violation which occurs in reliance upon and in conformity with information about the Investor furnished in writing to the Company by
such Indemnified Person expressly for use in connection with the preparation of the Registration Statement, any New Registration
Statement or any such amendment thereof or supplement thereto or prospectus contained therein, if such Registration Statement, New
Registration Statement or amendment thereof or supplement thereto or prospectus was timely made available by the Company pursuant to Section
3(c) or Section 3(e); (ii) with respect to any superseded prospectus, shall not inure to the benefit of any Indemnified
Person from whom the Indemnified Person asserting any such Claim purchased the Registrable Securities that are the subject thereof
(or to the benefit of any person controlling such Indemnified Person) if the untrue statement or omission of material fact contained
in the superseded prospectus was corrected in the revised prospectus, as then amended or supplemented, if such revised prospectus
was timely made available by the Company pursuant to Section 3(c) or Section 3(e), and the Indemnified Person was promptly advised
in writing not to use the incorrect prospectus prior to the use giving rise to a violation and such Indemnified Person,
notwithstanding such advice, used it; (iii) shall not be available to the extent such Claim is based on a failure of the Investor to
deliver or to cause to be delivered the prospectus made available by the Company, if such prospectus was timely made available by
the Company pursuant to Section 3(c) or Section 3(e); and (iv) shall not apply to amounts paid in settlement of any
Claim if such settlement is effected without the prior written consent of the Company, which consent shall not be unreasonably
withheld, delayed or conditioned. Such indemnity shall remain in full force and effect regardless of any investigation made by or on
behalf of the Indemnified Person and shall survive the transfer of the rights and obligations hereunder pursuant to Section
9.

 

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b.       In
connection with the Registration Statement or any New Registration Statement, the Investor agrees to indemnify, hold harmless and
defend, to the same extent and in the same manner as is set forth in Section 6(a), the Company, each of its directors, each
of its officers who signs the Registration Statement or any New Registration Statement, each Person, if any, who controls the
Company within the meaning of the Securities Act or the Exchange Act (collectively and together with an Indemnified Person, an
 “Indemnified Party”), against any Claim or Indemnified Damages to which any of them may become subject, under the
Securities Act, the Exchange Act or otherwise, insofar as such Claim or Indemnified Damages arise out of or are based upon any
Violation, in each case to the extent, and only to the extent, that such Violation occurs in reliance upon and in conformity with
written information about the Investor set forth on Exhibit A attached hereto and furnished to the Company by the Investor
expressly for use in connection with such Registration Statement (as such information about the Investor may be updated and
furnished to the Company by the Investor expressly for use in connection with any New Registration Statement or prospectus); and,
subject to Section 6(d), the Investor will reimburse any legal or other expenses reasonably incurred by any Indemnified Party
in connection with investigating or defending any such Claim; provided, however, that the indemnity agreement contained in this
Section 6(b) and the agreement with respect to contribution contained in Section 7 shall not apply to amounts paid in
settlement of any Claim if such settlement is effected without the prior written consent of the Investor, which consent shall not be
unreasonably withheld, delayed or conditioned; provided, further, however, that the Investor shall be liable under this Section
6(b) for only that amount of a Claim or Indemnified Damages as does not exceed the net proceeds to the Investor as a result of
the sale of Registrable Securities pursuant to such Registration Statement. Such indemnity shall remain in full force and effect
regardless of any investigation made by or on behalf of such Indemnified Party and shall survive the transfer of the Registrable
Securities by the Investor pursuant to Section 9.

 

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c.       Promptly
after receipt by an Indemnified Person or Indemnified Party under this Section 6 of notice of the commencement of any action or
proceeding (including any governmental action or proceeding) involving a Claim, such Indemnified Person or Indemnified Party shall, if
a Claim in respect thereof is to be made against any indemnifying party under this Section 6, deliver to the indemnifying party
a written notice of the commencement thereof, and the indemnifying party shall have the right to participate in, and, to the extent the
indemnifying party so desires, jointly with any other indemnifying party similarly noticed, to assume control of the defense thereof
with counsel mutually satisfactory to the indemnifying party and the Indemnified Person or the Indemnified Party, as the case may be;
provided, however, that an Indemnified Person or Indemnified Party shall have the right to retain its own counsel with the fees and expenses
to be paid by the indemnifying party, if, in the reasonable opinion of counsel retained by the indemnifying party, the representation
by such counsel of the Indemnified Person or Indemnified Party and the indemnifying party would be inappropriate due to actual or potential
differing interests between such Indemnified Person or Indemnified Party and any other party represented by such counsel in such proceeding.
The Indemnified Party or Indemnified Person shall cooperate with the indemnifying party in connection with any negotiation or defense
of any such action or claim by the indemnifying party and shall furnish to the indemnifying party all information reasonably available
to the Indemnified Party or Indemnified Person which relates to such action or claim. The indemnifying party shall keep the Indemnified
Party or Indemnified Person apprised as to the status of the defense or any settlement negotiations with respect thereto. No indemnifying
party shall be liable for any settlement of any action, claim or proceeding effected without its written consent, provided, however,
that the indemnifying party shall not unreasonably withhold, delay or condition its consent. No indemnifying party shall, without the
consent of the Indemnified Party or Indemnified Person, consent to entry of any judgment or enter into any settlement or other compromise
which does not include as an unconditional term thereof the giving by the claimant or plaintiff to such Indemnified Party or Indemnified
Person of a release from all liability in respect to such claim or litigation. Following indemnification as provided for hereunder, the
indemnifying party shall be subrogated to all rights of the Indemnified Party or Indemnified Person with respect to all third parties,
firms or corporations relating to the matter for which indemnification has been made. The failure to deliver written notice to the indemnifying
party within a reasonable time of the commencement of any such action shall not relieve such indemnifying party of any liability to the
Indemnified Person or Indemnified Party under this Section 6, except to the extent that the indemnifying party is prejudiced in
its ability to defend such action.

 

d.       The
indemnification required by this Section 6 shall be made by periodic payments of the amount thereof during the course of the investigation
or defense, as and when bills are received or Indemnified Damages are incurred. Any Person receiving a payment pursuant to this Section
6 that is later determined not to be entitled to such payment shall return such payment to the person making it.

 

e.       The
indemnity agreements contained herein shall be in addition to (i) any cause of action or similar right of the Indemnified Party or Indemnified
Person against the indemnifying party or others, and (ii) any liabilities the indemnifying party may be subject to pursuant to applicable
law.

 

7.            CONTRIBUTION.

 

To
the extent any indemnification by an indemnifying party is prohibited or limited by law, the indemnifying party agrees to make the
maximum contribution with respect to any amounts for which it would otherwise be liable under Section 6 to the fullest extent
permitted by law; provided, however, that: (i) no seller of Registrable Securities guilty of fraudulent misrepresentation (within
the meaning of Section 11(f) of the Securities Act) shall be entitled to contribution from any seller of Registrable Securities who
was not guilty of fraudulent misrepresentation; and (ii) contribution by any seller of Registrable Securities shall be limited in
amount to the net amount of proceeds received by such seller from the sale of such Registrable Securities.

 

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8.             REPORTS
AND DISCLOSURE UNDER THE SECURITIES ACT.

 

With
a view to making available to the Investor the benefits of Rule 144 promulgated under the Securities Act or any other similar rule or
regulation of the SEC that may at any time permit the Investor to sell securities of the Company to the public without registration (“Rule
144”), the Company agrees, at the Company’s sole expense, so long as the Investor owns Registrable Securities, to use
commercially reasonable efforts to:

 

a.       make
and keep public information available, as those terms are understood and defined in Rule 144;

 

b.       file
with the SEC in a timely manner all reports and other documents required of the Company under the Securities Act and the Exchange Act
so long as the Company remains subject to such requirements and the filing of such reports and other documents is required for the applicable
provisions of Rule 144;

 

c.       furnish
to the Investor so long as the Investor owns Registrable Securities, promptly upon request, (i) a written statement by the Company that
it has complied with the reporting and or disclosure provisions of Rule 144, the Securities Act and the Exchange Act, (ii) a copy of
the most recent annual or quarterly report of the Company and such other reports and documents so filed by the Company, and (iii) such
other information as may be reasonably requested to permit the Investor to sell such securities pursuant to Rule 144 without registration;
and

 

d.       take
such additional action as is reasonably requested by the Investor to enable the Investor to sell the Registrable Securities pursuant
to Rule 144, including, without limitation, delivering all such legal opinions, consents, certificates, resolutions and instructions
to the Company’s Transfer Agent as may be reasonably requested from time to time by the Investor and otherwise fully cooperate
with Investor and Investor’s broker to effect such sale of securities pursuant to Rule 144.

 

The
Company agrees that damages may be an inadequate remedy for any breach of the terms and provisions of this Section 8 and that
Investor shall, whether or not it is pursuing any remedies at law, be entitled to seek equitable relief in the form of a preliminary
or permanent injunction, without having to post any bond or other security, upon any breach or threatened breach of any such terms or
provisions.

 

		9.	ASSIGNMENT
                                            OF REGISTRATION RIGHTS.

 

The
Company shall not assign this Agreement or any rights or obligations hereunder without the prior written consent of the Investor; provided,
however, that any transaction, whether by merger, reorganization, restructuring, consolidation, financing or otherwise, whereby the Company
remains the surviving entity immediately after such transaction shall not be deemed an assignment. The Investor may not assign its rights
under this Agreement without the prior written consent of the Company, other than to an affiliate of the Investor controlled by Jonathan
Cope or Josh Scheinfeld, in which case the assignee must agree in writing to be bound by the terms and conditions of this Agreement.

 

    10

     

    

 

10.           AMENDMENT
OF REGISTRATION RIGHTS.

 

No
provision of this Agreement may be amended or waived by the parties from and after the date that is one (1) Business Day immediately
preceding the initial filing of the Registration Statement with the SEC. Subject to the immediately preceding sentence, no provision
of this Agreement may be (i) amended other than by a written instrument signed by both parties hereto or (ii) waived other than in a
written instrument signed by the party against whom enforcement of such waiver is sought. Failure of any party to exercise any right
or remedy under this Agreement or otherwise, or delay by a party in exercising such right or remedy, shall not operate as a waiver thereof.

 

11.          MISCELLANEOUS.

 

a.       A
Person is deemed to be a holder of Registrable Securities whenever such Person owns or is deemed to own of record such Registrable Securities.
If the Company receives conflicting instructions, notices or elections from two or more Persons with respect to the same Registrable
Securities, the Company shall act upon the basis of instructions, notice or election received from the registered owner of such Registrable
Securities.

 

b.       Any
notices, consents, waivers or other communications required or permitted to be given under the terms of this Agreement must be in writing
and will be deemed to have been delivered: (i) upon receipt, when delivered personally; (ii) upon receipt, when sent by facsimile or
email (provided confirmation of transmission is mechanically or electronically generated and kept on file by the sending party); or (iii)
one (1) Business Day after deposit with a nationally recognized overnight delivery service, in each case properly addressed to the party
to receive the same. The addresses, email addresses and facsimile numbers for such communications shall be:

 

If
to the Company:

 

	 	Nabriva Therapeutics plc
	 	25-28 North Wall Quay
	 	IFSC, Dublin 1, Ireland

	 	Telephone: 	(610) 816-6640
	 	E-mail:	[****]
	 	Attention:	Daniel Dolan, Chief Financial Officer

 

With
a copy to (which shall not constitute notice or service of process):

 

	 	Wilmer Cutler Pickering Hale and Dorr, LLP
	 	7 World Trade Center
	 	250 Greenwich Street
	 	New York, NY 10007

	 	Facsimile:	(212) 230-8888
	 	E-mail:	brian.johnson@wilmerhale.com
	 	Attention:	Brian A. Johnson

 

If
to the Investor:

 

	 	Lincoln Park Capital Fund, LLC
	 	440 North Wells, Suite 410
	 	Chicago, IL 60654

	 	Telephone: 	[****]
	 	Facsimile:	312.822.9301
	 	E-mail:	[****]
	 	Attention:	Josh Scheinfeld or Jonathan Cope

 

    11

     

    

 

With
a copy to (which shall not constitute notice or service of process):

 

	 	K&L
  Gates, LLP
	 	200
  S. Biscayne Blvd., Ste. 3900
	 	Miami,
  Florida 33131

	 	Telephone: 	305.539.3306
	 	Facsimile:	305.358.7095
	 	E-mail:	clayton.parker@klgates.com
	 	Attention:	Clayton E. Parker, Esq.

 

or
at such other address, email address and/or facsimile number and/or to the attention of such other person as the recipient party has
specified by written notice given to each other party at least three (3) Business Days prior to the effectiveness of such change. Written
confirmation of receipt (A) given by the recipient of such notice, consent, waiver or other communication, (B) mechanically or electronically
generated by the sender’s facsimile machine or email account containing the time, date, recipient facsimile number or email address,
as applicable, or (C) provided by a nationally recognized overnight delivery service, shall be rebuttable evidence of personal service,
receipt by facsimile, email or receipt from a nationally recognized overnight delivery service in accordance with clause (i), (ii) or
(iii) above, respectively.

 

c.       The
laws of Ireland shall govern all issues concerning the relative rights of the Company and its shareholders. All other questions concerning
the construction, validity, enforcement and interpretation of this Agreement shall be governed by the internal laws of the State of New
York, without giving effect to any choice of law or conflict of law provision or rule (whether of the State of Illinois or any other
jurisdictions) that would cause the application of the laws of any jurisdictions other than the State of New York. Each party hereby
irrevocably submits to the exclusive jurisdiction of and venue in the U.S. District Court for the Southern District of New York or, if
that court does not have subject matter jurisdiction, in any state court located in the City and County of New York, for the adjudication
of any dispute hereunder or in connection herewith or with any transaction contemplated hereby or discussed herein, and hereby irrevocably
waives, and agrees not to assert in any suit, action or proceeding, any claim that it is not personally subject to the jurisdiction of
any such court, that such suit, action or proceeding is brought in an inconvenient forum or that the venue of such suit, action or proceeding
is improper. 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 to such party at the address for such notices to it under this Agreement 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 manner permitted by law. If any provision of this Agreement shall be invalid or unenforceable
in any jurisdiction, such invalidity or unenforceability shall not affect the validity or enforceability of the remainder of this Agreement
in that jurisdiction or the validity or enforceability of any provision of this Agreement in any other jurisdiction. EACH PARTY HEREBY
IRREVOCABLY WAIVES ANY RIGHT IT MAY HAVE, AND AGREES NOT TO REQUEST, A JURY TRIAL FOR THE ADJUDICATION OF ANY DISPUTE HEREUNDER OR IN
CONNECTION HEREWITH OR ARISING OUT OF THIS AGREEMENT OR ANY TRANSACTION CONTEMPLATED HEREBY.

 

    12

     

    

 

d.       This
Agreement and the Purchase Agreement constitute the entire agreement among the parties hereto with respect to the subject matter hereof
and thereof. There are no restrictions, promises, warranties or undertakings among the parties hereto, other than those set forth or
referred to herein and therein. This Agreement and the Purchase Agreement supersede all prior agreements and understandings among the
parties hereto with respect to the subject matter hereof and thereof.

 

e.       Subject
to the requirements of Section 9, this Agreement shall inure to the benefit of and be binding upon the successors and permitted
assigns of each of the parties hereto.

 

f.        The
headings in this Agreement are for convenience of reference only and shall not limit or otherwise affect the meaning hereof.

 

g.       This
Agreement may be executed in identical counterparts, each of which shall be deemed an original but all of which shall constitute one
and the same agreement. This Agreement, once executed by a party, may be delivered to the other party hereto by facsimile transmission
or by e-mail in a “.pdf” format data file of a copy of this Agreement bearing the signature of the party so delivering this
Agreement.

 

h.       Each
party shall do and perform, or cause to be done and performed, all such further acts and things, and shall execute and deliver all such
other agreements, certificates, instruments and documents, as the other party may reasonably request in order to carry out the intent
and accomplish the purposes of this Agreement and the consummation of the transactions contemplated hereby.

 

i.        The
language used in this Agreement will be deemed to be the language chosen by the parties to express their mutual intent and no rules of
strict construction will be applied against any party.

 

j.        This
Agreement is intended for the benefit of the parties hereto and their respective successors and permitted assigns, and is not for the
benefit of, nor may any provision hereof be enforced by, any other Person.

 

12.
           TERMINATION.

 

The
obligations of the Company contained in Sections 2, 3, 5 and 8 of this Agreement shall terminate in their entirety upon the earlier of
(i) the date on which the Investor shall have sold all the Securities and no Available Amount remains under the Purchase Agreement and
(ii) 180 days following the earlier of (A) the Maturity Date and (B) the date of termination of the Purchase Agreement; provided that
as long as any Securities remain unsold by the Investor, the Company shall continue to use commercially reasonable efforts to make available
 “current public information” pursuant to Rule 144 promulgated under the Securities Act until the Investor may sell the Securities
thereunder without any restrictions (including any restrictions under Rule 144(c) or Rule 144(i)).

 

*
* * * * *

 

    13

     

    

  

IN
WITNESS WHEREOF, the parties have caused this Registration Rights Agreement to be duly executed as of day and year first above written.

 

	 	THE COMPANY:
	 	 
	 	NABRIVA THERAPEUTICS PLC
	 	 
	 	By:	/s/ Daniel Dolan
	 	Name: Daniel Dolan
	 	Title: Chief Financial Officer
	 	 
	 	BUYER:
	 	 
	 	LINCOLN PARK CAPITAL FUND, LLC
	 	BY: LINCOLN PARK CAPITAL, LLC
	 	BY: ROCKLEDGE CAPITAL CORPORATION
	 	 
	 	By:	/s/ Josh Scheinfeld
	 	Name: Josh Scheinfeld
	 	Title: President

 

    14

     

    

 

EXHIBIT
A

 

Information
About The Investor Furnished To The Company By The Investor 

Expressly
For Use In Connection With The Registration Statement

 

Information
With Respect to Lincoln Park Capital

 

“As
of the date of the Purchase Agreement, Lincoln Park Capital Fund, LLC, beneficially owned zero (0) of our ordinary shares. Josh Scheinfeld
and Jonathan Cope, the Managing Members of Lincoln Park Capital, LLC, the manager of Lincoln Park Capital Fund, LLC, are deemed to be
beneficial owners of all of the ordinary shares owned by Lincoln Park Capital Fund, LLC. Messrs. Cope and Scheinfeld have shared voting
and investment power over the shares being offered under the prospectus filed with the SEC in connection with the transactions contemplated
under the Purchase Agreement. Lincoln Park Capital, LLC is not a licensed broker dealer or an affiliate of a licensed broker dealer.”

 

    15Exhibit 10.1

 

EXECUTION COPY

 

PURCHASE AGREEMENT

 

THIS PURCHASE AGREEMENT
(the “Agreement”), dated as of September 24, 2021 (the “Execution Date”), is made by and between
NABRIVA THERAPEUTICS PLC., an Irish incorporated public limited company (the “Company”), and LINCOLN PARK
CAPITAL FUND, LLC, an Illinois limited liability company (the “Investor”). Capitalized terms used herein
and not otherwise defined herein are defined in Section 1 hereof.

 

WHEREAS:

 

Subject to the terms and conditions
set forth in this Agreement, the Company wishes to allot and issue to the Investor, and the Investor wishes to buy from the Company, up
to Twenty-Three Million Dollars ($23,000,000) of the Company’s ordinary shares, $0.01 nominal value per share (the “Ordinary
Shares”). The Ordinary Shares to be purchased hereunder are referred to herein as the “Purchase Shares.”

 

NOW THEREFORE, in consideration
of the mutual covenants contained in this Agreement, and for other good and valuable consideration, the receipt and adequacy of which
are hereby acknowledged, the Company and the Investor hereby agree as follows:

 

		1.	CERTAIN DEFINITIONS.

 

For purposes of this Agreement,
the following terms shall have the following meanings:

 

(a)              “Accelerated
Purchase Date” means, with respect to any Accelerated Purchase (as defined below) made pursuant to Section 2(b) hereof
or any Additional Accelerated Purchase (as defined below) pursuant to Section 2(c) hereof, the Business Day immediately following
the applicable Regular Purchase Date with respect to the corresponding Regular Purchase made pursuant to Section 2(a) hereof.

 

(b)             “Accelerated Purchase Period” means, with respect to an Accelerated Purchase made pursuant to Section 2(b)
hereof, such period of time on the Accelerated Purchase Date beginning at the official open of trading on the Principal Market, and
ending at the earliest of (i) the official close of trading on the Principal Market on such Accelerated Purchase Date, (ii) such time
that the total number (or volume) of Ordinary Shares traded on the Principal Market has exceeded the quotient of (A) the Accelerated
Purchase Share Amount, divided by (B) 0.3, and (iii) such time on the Accelerated Purchase Date that the Sale Price has fallen below
any minimum price threshold set forth in the applicable Purchase Notice by the Company.

 

(c)             “Accelerated Purchase Share Amount” means, with respect to an Accelerated Purchase made pursuant to Section
2(b) hereof or an Additional Accelerated Purchase (as defined below) made pursuant to Section 2(c) hereof, the number of Purchase
Shares directed by the Company to be purchased by the Investor in a Purchase Notice, which number of Purchase Shares shall not, in the
absence of a mutual agreement of the Parties to the contrary, exceed the lesser of (i) 300% of the applicable Regular Purchase Share
Limit for the corresponding Regular Purchase and (ii) 30% of the total volume of Ordinary Shares traded on the Principal Market during
the Accelerated Purchase Period or the Additional Accelerated Purchase Period, as applicable.

 

(d)              “Additional
Accelerated Purchase Period” means, with respect to an Additional Accelerated Purchase (as defined below) pursuant to Section
2(c) hereof, such period of time on the Accelerated Purchase Date beginning at the latest of (i) the end of the Accelerated Purchase
Period for the corresponding Accelerated Purchase made pursuant to Section 2(b) hereof on such Accelerated Purchase Date, (ii)
the end of the Additional Accelerated Purchase Period for the most recently completed prior Additional Accelerated Purchase pursuant
to Section 2(c) hereof on such Accelerated Purchase Date, as applicable, and (iii) the time at which all Purchase Shares for all
prior Purchases, including, those effected on the applicable Accelerated Purchase Date have theretofore been received by the Investor
as DWAC Shares in accordance with this Agreement, and ending at the earliest of (i) the official close of trading on the Principal Market
on the Accelerated Purchase Date, (ii) such time that the total number (or volume) of Ordinary Shares traded on the Principal Market
has exceeded the quotient of (A) the Accelerated Purchase Share Amount, and (B) 0.3, and (iii) such time that the Sale Price has fallen
below any minimum price threshold set forth in the applicable Purchase Notice by the Company.

 

     

     

    

 

(e)              “Available
Amount” means, initially, Twenty-Three Million Dollars ($23,000,000) in the aggregate, which amount shall be reduced by the
Purchase Amount each time the Investor purchases Purchase Shares pursuant to Section 2 hereof.

 

(f)               “Bankruptcy Law” means Title 11, U.S. Code, or any similar Irish, federal or state law for the relief of debtors.

 

(g)              “Business
Day” means any day on which the Principal Market is open for trading, including any day on which the Principal Market is open
for trading for a period of time less than the customary time.

 

(h)              “Closing Sale Price” means, for any security as of any date, the last closing sale price for such security on
the Principal Market as reported by the Principal Market.

 

(i)               “Confidential
Information” means any information disclosed by either party to the other party, either directly or indirectly, in writing,
orally or by inspection of tangible objects (including, without limitation, documents, prototypes, samples, plant and equipment), which
is designated as “Confidential,” “Proprietary” or some similar designation. Information communicated orally shall
be considered Confidential Information if such information is confirmed in writing as being Confidential Information within ten (10)
Business Days after the initial disclosure. Confidential Information may also include information disclosed to a disclosing party by
third parties. Confidential Information shall not, however, include any information which (i) was publicly known and made generally available
in the public domain prior to the time of disclosure by the disclosing party; (ii) becomes publicly known and made generally available
after disclosure by the disclosing party to the receiving party through no action or inaction of the receiving party; (iii) is already
in the possession of the receiving party without confidential restriction at the time of disclosure by the disclosing party as shown
by the receiving party’s files and records immediately prior to the time of disclosure; (iv) is obtained by the receiving party
from a third party without a breach of such third party’s obligations of confidentiality; or (v) is independently developed by
the receiving party without use of or reference to the disclosing party’s Confidential Information, as shown by documents and other
competent evidence in the receiving party’s possession.

 

(j)               “DTC” means The Depository Trust Company, or any successor performing substantially the same function for the
Company.

 

(k)              “DWAC Shares” means Ordinary Shares that are (i) issued in electronic form, (ii) freely tradable and transferable
and without restriction on resale and (iii) timely credited by the Company, once a DWAC notice is received, to the Investor’s or
its designee’s specified Deposit/Withdrawal at Custodian (DWAC) account with DTC under its Fast Automated Securities Transfer (FAST)
Program, or any similar program hereafter adopted by DTC performing substantially the same function.

 

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

 

     2

     

    

 

(m)             “Floor Price” means $0.25, which shall be adjusted for any reorganization, recapitalization, non-cash dividend,
share split, reverse share split or other similar transaction and, effective upon the consummation of any of the foregoing, the Floor
Price shall mean the lower of (i) the adjusted price and (ii) $0.25.

 

(n)              “Material
Adverse Effect” means any material adverse effect on (i) the enforceability of any Transaction Document, (ii) the results of
operations, assets, business or financial condition of the Company and its Subsidiaries, taken as a whole, other than any material adverse
effect that resulted exclusively from (A) any change in the United States or foreign economies or securities or financial markets in
general that does not have a disproportionate effect on the Company and its Subsidiaries, taken as a whole, (B) any change that generally
affects the industry in which the Company and its Subsidiaries operate that does not have a disproportionate effect on the Company and
its Subsidiaries, taken as a whole, (C) any change arising in connection with earthquakes, other acts of God, pandemics, hostilities,
acts of war, sabotage or terrorism or military actions or any escalation or material worsening of any such hostilities, acts of war,
sabotage or terrorism or military actions existing as of the Execution Date, (D) any action taken by the Investor, its affiliates or
its or their successors and assigns with respect to the transactions contemplated by this Agreement, (E) the effect of any change in
Applicable Laws or accounting rules that does not have a disproportionate effect on the Company and its Subsidiaries, taken as a whole,
(F) any change resulting from compliance with terms of this Agreement or the consummation of the transactions contemplated by this Agreement,
or (G) the failure by the Company to obtain shareholder approval of an updated authority under Irish law for the Board of Directors of
the Company to issue Ordinary Shares for cash without first offering those Ordinary Shares to existing shareholders of the Company (the
 “Pre-Emption Rights Disapplication Requirement”) or (iii) the Company’s ability to perform in any material respect
on a timely basis its obligations under any Transaction Document to be performed as of the date of determination.

 

(o)              “Maturity Date” means the first day of the month immediately following the twenty-four (24) month anniversary
of the Commencement Date.

 

(p)              “New
Registration Statement” has the meaning set forth in the Registration Rights Agreement.

 

(q)             “Person” means an individual or entity including but not limited to any limited liability company, a partnership,
a joint venture, a corporation, a trust, an unincorporated organization and a government or any department or agency thereof.

 

(r)                
“Principal Market” means The Nasdaq Global Select Market (or any nationally recognized successor thereto); provided,
however, that in the event the Company’s Ordinary Shares are ever listed or traded on The Nasdaq Capital Market, The Nasdaq Global
Market, the New York Stock Exchange, NYSE American, the NYSE Arca, the OTC Bulletin Board, or the OTCQX or OTCQB operated by the OTC Markets
Group, Inc. (or any nationally recognized successor to any of the foregoing), then the “Principal Market” shall mean such
other market or exchange on which the Company’s Ordinary Shares are then listed or traded.

 

(s)              “Purchase”
means any Regular Purchase, Accelerated Purchase or Additional Accelerated Purchase made hereunder, as applicable.

 

(t)               “Purchase
Amount” means, with respect to any Regular Purchase, any Accelerated Purchase or any Additional Accelerated Purchase made hereunder,
as applicable, the portion of the Available Amount to be purchased by the Investor pursuant to Section 2 hereof.

 

     3

     

    

 

(u)              “Purchase Notice” means a notice delivered to the Investor pursuant to Section 2 with respect to any
Regular Purchase, Accelerated Purchase or Additional Accelerated Purchase, respectively.

 

(v)               “Registration Rights Agreement” means that certain Registration Rights Agreement, of even date herewith between
the Company and the Investor.

 

(w)             “Registration Statement” has the meaning set forth in the Registration Rights Agreement.

 

(x)              “Regular
Purchase Date” means, with respect to a Regular Purchase made pursuant to Section 2(a) hereof, the Business Day for
which the Investor receives, after 4:00 p.m., Eastern time on such Business Day, or thereafter as permitted by Section 2(a) hereof,
a valid Purchase Notice for such Regular Purchase in accordance with this Agreement; provided that any Business Day that is twenty (20)
days or less before the filing of any post-effective amendment to the Registration Statement or New Registration Statement, and until
the effective date of any such post-effective amendment to the Registration Statement or New Registration Statement, shall not be a Regular
Purchase Date.

 

(y)             “Regular
Purchase Share Limit” means Four Hundred Thousand (400,000) Purchase Shares; provided, however, that (i) if the
Closing Sale Price of the Ordinary Shares is not below $2.00 per share on the applicable Regular Purchase Date, the Regular Purchase
Share Limit may be increased to up to Six Hundred Thousand (600,000) Purchase Shares for such Regular Purchase Date; and (ii) if the
Closing Sale Price of the Ordinary Shares is not below $3.00 on the applicable Regular Purchase Date, the Regular Purchase Share Limit
may be increased to up to Eight Hundred Thousand (800,000) Purchase Shares for such Regular Purchase Date, in each case such number of
Purchase Shares and price per share to be adjusted following any reorganization, recapitalization, non-cash dividend, share split, reverse
share, split or other similar transaction effected with respect to the Ordinary Shares; provided, that if following such an adjustment,
the Regular Purchase Share Limit as adjusted would preclude the Company from delivering to the Investor a Purchase Notice hereunder for
a Purchase Amount equal to or greater than Two Hundred Thousand Dollars ($200,000), the Regular Purchase Share Limit shall equal the
maximum number of Purchase Shares which would enable the Company to deliver to the Investor a Purchase Notice for a Purchase Amount equal
to, or as closely approximating, but without exceeding, Two Hundred Thousand Dollars ($200,000); provided, further, that
in the absence of a mutual agreement of the Parties to the contrary, the Investor’s committed obligation under any single Regular
Purchase shall not exceed Two Million Five Hundred Thousand Dollars ($2,500,000).

 

(z)              “Sale
Price” means any sale price for the Ordinary Shares on the Principal Market as reported by the Principal Market.

 

(aa)            “SEC”
means the U.S. Securities and Exchange Commission.

 

(bb)            “Securities” means, collectively, the Purchase Shares and the Commitment Shares (as defined below).

 

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

 

(dd)           “Subsidiary” means any Person the Company wholly owns or controls, or in which the Company, directly or indirectly,
owns a majority of the voting shares or similar voting interest, in each case that would be disclosable pursuant to Item 601(b)(21) of
Regulation S-K promulgated under the Securities Act.

 

     4

     

    

 

(ee)            “Transaction Documents” means, collectively, this Agreement and the schedules and exhibits hereto, the Registration
Rights Agreement and the schedules and exhibits thereto and each of the other agreements, documents, certificates and instruments entered
into or furnished by the parties hereto in connection with the transactions contemplated hereby and thereby.

 

(ff)             “Transfer Agent” means Computershare Trust Company, N.A., or such other Person who is then serving as the transfer
agent for the Company in respect of the Ordinary Shares.

 

(gg)           “VWAP”
means in respect of an applicable Accelerated Purchase Date, the volume weighted average price of the Ordinary Shares on the Principal
Market, as reported on the Principal Market or by another reputable source such as Bloomberg, L.P.

 

		2.	PURCHASE OF ORDINARY SHARES.

 

Subject to the terms and conditions
set forth in this Agreement, the Company has the right, but not the obligation, to allot and issue to the Investor, in the Company’s
sole and absolute discretion, and the Investor has the obligation to purchase from the Company, Purchase Shares as follows:

 

(a)              Commencement
of Regular Purchases of Ordinary Shares. Upon the satisfaction of the conditions set forth in Section 7 and 8 hereof
(the “Commencement” and the date of satisfaction of such conditions, the “Commencement Date”) and
thereafter, the Company shall have the right, but not the obligation, to direct the Investor, by its delivery to the Investor of a Purchase
Notice from time to time on any Regular Purchase Date on which the Closing Sale Price is not below the Floor Price, to purchase up to
the Regular Purchase Share Limit (each such purchase, a “Regular Purchase”) at the lower of: (i) the lowest Sale Price
of the Ordinary Shares on the applicable Regular Purchase Date and (ii) the arithmetic average of the three (3) lowest Closing Sale Prices
for the Ordinary Shares during the ten (10) consecutive Business Days ending on the Business Day immediately preceding such Regular Purchase
Date (the “Purchase Price”). The Company may deliver multiple Regular Purchase Notices to the Investor in a day as
often as every Business Day, subject to the second sentence of Section 2(g), so long as Purchase Shares for all prior Regular
Purchases, Accelerated Purchases and Additional Accelerated Purchases, including, without limitation, those that have been effected on
the same Business Day as the applicable Purchase Date, have theretofore been received by the Investor as DWAC Shares in accordance with
this Agreement. For purposes of this Section 2(a), a Purchase Notice delivered on a day that is not a Business Day shall be deemed
to have been delivered on the most recent Business Day prior to delivery of such Purchase Notice.

 

(b)              Accelerated Purchases. On any Regular Purchase Date, provided that the Company properly submitted a Purchase Notice for
a Regular Purchase for a number of Purchase Shares not less than the Regular Purchase Share Limit then in effect on such Regular Purchase
Date and subject to the terms and conditions of this Agreement, the Company shall also have the right, but not the obligation, to direct
the Investor, by its delivery to the Investor of a Purchase Notice from time to time in accordance with this Agreement, to purchase the
applicable Accelerated Purchase Share Amount (each such purchase, an “Accelerated Purchase”) at ninety-five percent
(95%) of the lower of (i) the Closing Sale Price of the Ordinary Shares on such applicable Accelerated Purchase Date and (ii) the VWAP
for the Accelerated Purchase Period (the “Accelerated Purchase Price”). Within one (1) Business Day after completion
of each Accelerated Purchase Date for an Accelerated Purchase, the Investor will provide to the Company a written confirmation of such
Accelerated Purchase setting forth the applicable Accelerated Purchase Share Amount and Accelerated Purchase Price for such Accelerated
Purchase.

 

     5

     

    

 

(c)              Additional Accelerated Purchases. On any Accelerated Purchase Date, provided that the Company properly submitted a
Purchase Notice for an Accelerated Purchase and subject to the terms and conditions of this Agreement, the Company shall also have the
right, but not the obligation, to direct the Investor, by its delivery to the Investor of a Purchase Notice from time to time in accordance
with this Agreement, to purchase the applicable Accelerated Purchase Share Amount (each such purchase, an “Additional Accelerated
Purchase”) at the Accelerated Purchase Price. The Company may deliver Purchase Notices to the Investor for multiple Additional
Accelerated Purchases on an Accelerated Purchase Date subject to the second sentence of Section 2(g).

 

(d)              Payment for Purchase Shares.   For each Regular Purchase, the Investor shall immediately pay to the Company an
amount equal to the Purchase Amount with respect to such Regular Purchase as full payment for such Purchase Shares via wire transfer of
immediately available funds on receipt of such Purchase Shares by the Investor. For each Accelerated Purchase and each Additional Accelerated
Purchase, the Investor shall immediately pay to the Company an amount equal to the Purchase Amount with respect to such purchase as full
payment for such Purchase Shares via wire transfer of immediately available funds on receipt of such Purchase Shares by the Investor.
If the Company or the Transfer Agent shall fail for any reason or for no reason to electronically transfer any Purchase Shares as DWAC
Shares with respect to any Purchase by the Investor within two (2) Business Days following the receipt by the Company of the Purchase
Price or Accelerated Purchase Price, as applicable, for any Purchase therefor in compliance with this Section 2(d), and if on or
after such two (2) Business Days the Investor purchases (in an open market transaction or otherwise) Ordinary Shares to deliver in satisfaction
of a sale by the Investor of Purchase Shares in anticipation of receiving Purchase Shares from the Company with respect to such Purchase,
then the Company shall, within two (2) Business Days after the Investor’s request, either (i) pay cash to the Investor in an amount
equal to the Investor’s total purchase price (including customary brokerage commissions, if any) for the Ordinary Shares so purchased
(the “Cover Price”), at which point the Company’s obligation to deliver such Purchase Shares as DWAC Shares shall
terminate, or (ii) promptly honor its obligation to deliver to the Investor such Purchase Shares as DWAC Shares and pay cash to the Investor
in an amount equal to the excess (if any) of the Cover Price over the total Purchase Amount paid by the Investor pursuant to this Agreement
for all of the Purchase Shares to be purchased by the Investor in connection with such purchases. The Company shall not issue any fraction
of an Ordinary Share upon any Regular Purchase, Accelerated Purchase or Additional Accelerated Purchase. If the issuance would result
in the issuance of a fraction of an Ordinary Share, the Company shall round such fraction of an Ordinary Share down to the nearest whole
share. All payments made under this Agreement shall be made in lawful money of the United States of America or wire transfer of immediately
available funds to such account as the Company may from time to time designate by written notice in accordance with the provisions of
this Agreement. Whenever any amount expressed to be due by the terms of this Agreement is due on any day that is not a Business Day, the
same shall instead be due on the next succeeding day that is a Business Day.

 

(e)              Compliance
with Rules of the Principal Market. Notwithstanding anything in this Agreement to the
contrary, and in addition to the limitations set forth in Section 2(f), the Company shall not issue more than 10,372,556
Ordinary Shares (including the Commitment Shares) (the “Exchange Cap”) under this Agreement, which equals 19.99%
of the Company’s outstanding Ordinary Shares as of the Execution Date, unless shareholder approval is obtained to issue in
excess of the Exchange Cap; provided, however, that the foregoing limitation shall not apply if at any time the Exchange Cap is
reached and at all times thereafter the average price paid for all Ordinary Shares issued under this Agreement is equal to or
greater than $1.16, which is a price equal to the lower of (i) the Nasdaq Official Closing Price immediately preceding the execution
of this Agreement or (ii) the arithmetic average of the Nasdaq Official Closing Prices for the Ordinary Shares for the five (5)
consecutive Business Days immediately preceding the execution of this Agreement, as calculated in accordance with the rules
of the Principal Market (in such circumstance, for purposes of the Principal Market, the transaction contemplated hereby would not
be “below market” and the Exchange Cap would not apply). Notwithstanding the foregoing, the Company shall not be
required or permitted to issue, and the Investor shall not be required to purchase, any Ordinary Shares under this Agreement if such
issuance would violate the rules or regulations of the Principal Market. The Company may, in its sole discretion, determine whether
to obtain shareholder approval to issue more than 19.99% of its outstanding Ordinary Shares hereunder if such issuance would require
shareholder approval under the rules or regulations of the Principal Market. The Exchange Cap shall be reduced, on a share-for-share
basis, by the number of Ordinary Shares issued or issuable that may be aggregated with the transactions contemplated by this
Agreement under applicable rules of the Principal Market.

 

     6

     

    

 

(f)               Beneficial Ownership Limitation. Notwithstanding anything to the contrary contained in this Agreement, the Company shall
not allot or issue, and the Investor shall not purchase or acquire, any Ordinary Shares under this Agreement which, when
aggregated with all other Ordinary Shares then beneficially owned by the Investor and its affiliates (as calculated pursuant to Section
13(d) of the Exchange Act and Rule 13d-3 promulgated thereunder) would result in the beneficial ownership by the Investor and its
affiliates of more than 9.99% of the then issued and outstanding Ordinary Shares (the “Beneficial Ownership Limitation”).
Upon the written or oral request of the Investor, the Company shall promptly (but not later than twenty-four (24) hours) confirm orally
or in writing to the Investor the amount of Ordinary Shares then outstanding. The Investor and the Company shall each cooperate in good
faith in the determinations required hereby and the application hereof. The Investor’s written certification to the Company of the
applicability of the Beneficial Ownership Limitation, and the resulting effect thereof hereunder at any time, shall be conclusive with
respect to the applicability thereof and such result absent manifest error.

 

(g)              Excess Share Limitations. If the Company delivers any Purchase Notice for a Purchase Amount in excess of the limitations
contained in this Section 2, such Purchase Notice shall be void ab initio to the extent of the amount by which the number
of Purchase Shares set forth in such Purchase Notice exceeds the number of Purchase Shares which the Company is permitted to include in
such Purchase Notice in accordance herewith, and the Investor shall have no obligation to purchase such excess Purchase Shares in respect
of such Purchase Notice; provided, however, that the Investor shall remain obligated to purchase the number of Purchase
Shares which the Company is permitted to include in such Purchase Notice. If the Company delivers a Purchase Notice, and all Purchase
Shares subject to all prior Purchases have not theretofore been received by the Investor as DWAC Shares in accordance with this Agreement,
such Purchase Notice shall not be deemed to have been delivered and the Investor shall not be required to purchase any Purchase Shares
until all Purchase Shares for such prior Purchases have been received by the Investor as DWAC Shares. If any issuance of Purchase Shares
would result in the issuance of a fraction of an Ordinary Share, the Company shall round down such fraction of an Ordinary Share to the
nearest whole share and no fractional shares will be issued.

 

(h)              Adjustments
for Shares and Prices. Except as specifically stated otherwise, all share-related and dollar-related limitations contained in this
Section 2, shall be adjusted to take into account any reorganization, recapitalization, non-cash dividend, share split, reverse
share split or other similar transaction effected with respect to the Ordinary Shares.

 

     7

     

    

 

		3.	INVESTOR’S REPRESENTATIONS AND WARRANTIES.

 

       The
Investor represents and warrants to the Company that as of the Execution Date and as of the Commencement Date:

 

(a)              Organization,
Authority. The Investor is an entity duly organized, validly existing and in good standing under the laws of the jurisdiction of
its organization, with the requisite power and authority to enter into and to consummate the transactions contemplated by this Agreement
and otherwise to carry out its obligations hereunder and thereunder.

 

(b)              Accredited Investor Status. The Investor is an “accredited investor” as that term is defined in Rule 501(a)(3)
of Regulation D promulgated under the Securities Act.

 

(c)              Reliance
on Exemptions. The Investor understands that the Securities may be offered and sold to it in reliance on specific exemptions from
the registration requirements of United States federal and state securities laws and that the Company is relying in part upon the truth
and accuracy of, and the Investor’s compliance with, the representations, warranties, agreements, acknowledgments and understandings
of the Investor set forth herein in order to determine the availability of such exemptions and the eligibility of the Investor to acquire
the Securities.

 

(d)             Investment Purpose. The Investor is acquiring the Securities as principal for its own account for investment only and not
with a view to or for distributing or reselling such Securities or any part thereof in violation of the Securities Act or any applicable
state securities law, has no present intention of distributing any of such Securities in violation of the Securities Act or any applicable
state securities law and has no direct or indirect arrangement or understandings with any other Persons to distribute or regarding the
distribution of such Securities in violation of the Securities Act or any applicable state securities law (this representation and warranty
not limiting the Investor’s right to sell the Securities at any time pursuant to the Registration Statement described herein or
otherwise in compliance with applicable federal and state securities laws). The Investor is acquiring the Securities hereunder in the
ordinary course of its business.

 

(e)              Information.
The Investor understands that its investment in the Securities involves a high degree of risk. The Investor (i) is able to bear the economic
risk of an investment in the Securities including a total loss thereof, (ii) has such knowledge and experience in financial and business
matters that it is capable of evaluating the merits and risks of the proposed investment in the Securities and (iii) has had an opportunity
to ask questions of and receive answers from the officers of the Company concerning the financial condition and business of the Company
and other matters related to an investment in the Securities. Neither such inquiries nor any other due diligence investigations conducted
by the Investor or its representatives shall modify, amend or affect the Investor’s right to rely on the Company’s representations
and warranties contained in Section 4 below. The Investor has sought such accounting, legal and tax advice from its own independent
advisors as it has considered necessary to make an informed investment decision with respect to its acquisition of the Securities and
is not relying on any accounting, legal, tax or other advice from the Company or its officers, employees, representatives or advisors.
The Investor acknowledges and agrees that the Company neither makes nor has made any representations or warranties with respect to the
transactions contemplated hereby other than those specifically set forth in Section 4 hereof.

 

(f)               No
Governmental Review. The Investor understands that no U.S. federal or state, or foreign agency or any other government or governmental
agency has passed on or made any recommendation or endorsement of the Securities or the fairness or suitability of an investment in the
Securities nor have such authorities passed upon or endorsed the merits of the offering of the Securities or the other transactions contemplated
hereby.

 

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(g)             Transfer or Sale. The Investor understands that (i) the Securities may not be offered for sale, sold, assigned or transferred
unless (A) registered pursuant to the Securities Act or (B) an exemption exists permitting such Securities to be sold, assigned or transferred
without such registration; (ii) any sale of the Securities made in reliance on Rule 144 promulgated under the Securities Act (“Rule
144”) may be made only in accordance with the terms of Rule 144 and further, if Rule 144 is not applicable, any resale of the
Securities under circumstances in which the seller (or the Person through whom the sale is made) may be deemed to be an underwriter (as
that term is defined in the Securities Act) may require compliance with some other exemption under the Securities Act or the rules and
regulations of the SEC thereunder.

 

(h)              Validity;
Enforcement. This Agreement and the other Transaction Documents have been duly and validly authorized, executed and delivered on
behalf of the Investor and each is a valid and binding agreement of the Investor enforceable against the Investor in accordance with
its terms, subject as to enforceability to general principles of equity and to applicable bankruptcy, insolvency, reorganization, moratorium,
liquidation and other similar laws relating to, or affecting generally, the enforcement of applicable creditors’ rights and remedies.

 

(i)               
Residency. The Investor’s principal place of business is in the State of Illinois.

 

(j)               No Short Selling. The Investor represents and warrants to the Company that at no time prior to the Execution Date has any
of the Investor, its agents, representatives or affiliates engaged in or effected, in any manner whatsoever, directly or indirectly, any
(i) “short sale” (as such term is defined in Rule 200 of Regulation SHO of the Exchange Act) of the Ordinary Shares or (ii)
hedging transaction, which establishes a net short position with respect to the Ordinary Shares.

 

		4.	REPRESENTATIONS AND WARRANTIES OF THE COMPANY.

 

The Company represents and
warrants to the Investor that as of the Execution Date and as of the Commencement Date:

 

(a)              Organization and Qualification. The Company and each of its Subsidiaries is an entity duly incorporated or otherwise organized,
validly existing and in good standing under the laws of the jurisdiction of its incorporation, organization or formation (or such equivalent
concept to the extent such equivalent concept exists under the law of such jurisdiction), with the requisite corporate or other power
and authority to own and use its properties and assets and to carry on its business as currently conducted. Neither the Company nor any
of its Subsidiaries is in violation or default of any of the provisions of its respective certificate or articles of incorporation, bylaws,
memorandum or articles of association or other organizational or charter documents. Each of the Company and its Subsidiaries is duly qualified
to conduct business and is in good standing (or such equivalent concept to the extent such equivalent concept exists under the law of
such jurisdiction) as a foreign corporation or other entity in each jurisdiction in which the nature of the business conducted or property
owned by it makes such qualification necessary, except where the failure to be so qualified or in good standing, as the case may be, would
not reasonably be expected to result in a Material Adverse Effect, and to the Company’s knowledge, no proceeding has been instituted
in any such jurisdiction revoking, limiting or curtailing or seeking to revoke, limit or curtail such power and authority or qualification.
The Company has no Subsidiaries except as set forth on Exhibit 21.1 to the Company’s Annual Report on Form 10-K for the year ended
December 31, 2020 filed with the SEC on March 11, 2021.

 

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(b)             Authorization;
Enforcement; Validity. Subject to the Pre-Emption Rights Disapplication Requirement, the Company has the requisite corporate power
and authority to enter into and perform its obligations under this Agreement and each of the other Transaction Documents, and to allot
and issue the Securities in accordance with the terms hereof and thereof. The execution and delivery of the Transaction Documents by
the Company and the consummation by it of the transactions contemplated hereby and thereby, including without limitation, the allotment
and issuance of the Commitment Shares (as defined below in Section 5(e)) and the reservation for issuance and the allotment and
issuance of the Purchase Shares issuable under this Agreement have been duly authorized by the Company’s Board of Directors or
a validly authorized committee thereof (collectively, the “Board of Directors”), and no further consent or authorization
is required by the Company, its Board of Directors or any committee thereof, or its shareholders (except as set forth in Section 2(e)
hereof and except for the Pre-Emption Rights Disapplication Requirement). This Agreement has been, and each other Transaction Document
shall be on the Commencement Date, duly executed and delivered by the Company, and this Agreement constitutes, and each other Transaction
Document upon its execution on behalf of the Company, shall constitute, the valid and binding obligations of the Company enforceable
against the Company in accordance with their terms, except as such enforceability may be limited by general principles of equity or applicable
bankruptcy, insolvency, reorganization, moratorium, liquidation or similar laws relating to, or affecting generally, the enforcement
of creditors’ rights and remedies. The Board of Directors of the Company has adopted all applicable resolutions (the “Signing
Resolutions”) to authorize this Agreement and the transactions contemplated hereby. The Signing Resolutions are valid, in full
force and effect and have not been modified or supplemented in any respect. The Company has delivered to the Investor a true and correct
copy of the Signing Resolutions adopted by the Board of Directors. Except as set forth in this Agreement and except for the Pre-Emption
Rights Disapplication Requirement, no other approvals or consents of the Company’s Board of Directors or the Company’s shareholders
is necessary under Applicable Laws or the Company’s memorandum and articles of association to authorize the execution and delivery
of this Agreement or any of the transactions contemplated hereby, including, but not limited to, the allotment and issuance of the Commitment
Shares and the allotment and issuance of the Purchase Shares.

 

(c)              Capitalization.
As of the Execution Date, the authorized share capital of the Company is set forth in Schedule 4(c) hereof. Except as disclosed
in the SEC Documents (as defined below) or Schedule 4(c), (i) none of the Company’s issued share capital is subject to preemptive
rights or any other similar rights or any Liens (as defined below) or encumbrances and defects (“Liens”) suffered
or permitted by the Company, (ii) there are no outstanding debt securities, (iii) there are no outstanding options, warrants, scrip,
rights to subscribe to, calls or commitments of any character whatsoever relating to, or securities or rights convertible into, any share
capital of the Company or any of its Subsidiaries, or contracts, commitments, understandings or arrangements by which the Company or
any of its Subsidiaries is or may become bound to issue additional share capital of the Company or any of its Subsidiaries or options,
warrants, scrip, rights to subscribe to, calls or commitments of any character whatsoever relating to, or securities or rights convertible
into, any share capital of the Company or any of its Subsidiaries, (iv) there are no agreements or arrangements under which the Company
or any of its Subsidiaries is obligated to register the sale of any of their securities under the Securities Act (except the Registration
Rights Agreement), (v) there are no outstanding securities or instruments of the Company or any of its Subsidiaries which contain any
redemption or similar provisions, and there are no contracts, commitments, understandings or arrangements by which the Company or any
of its Subsidiaries is or may become bound to redeem a security of the Company or any of its Subsidiaries, (vi) there are no securities
or instruments containing anti-dilution or similar provisions that will be triggered by the issuance of the Securities as described in
this Agreement and (vii) the Company has not granted any share appreciation rights or “phantom share” rights. The Company
has furnished to the Investor true and correct copies of (A) the Company’s memorandum and articles of association and (B) summaries
of the material terms of all securities convertible into or exercisable for Ordinary Shares, if any, and copies of any documents containing
the material rights of the holders thereof in respect thereto, which in the case of this clause (B), are not disclosed in any SEC Document
or filed as an exhibit thereto.

 

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(d)             Issuance of Securities. Upon allotment, issuance and payment therefor in accordance with the terms and conditions of this
Agreement, the Securities shall be validly issued, fully paid and not subject to any calls for additional capital (nonassessable) and
free from all taxes, Liens, charges, restrictions, rights of first refusal and preemptive rights with respect to the issue thereof, with
the holders being entitled to all rights accorded to a holder of Ordinary Shares. A total of 632,474 Ordinary Shares (subject to adjustment
for any reorganization, recapitalization, non-cash dividend, share split, reverse share split or other similar transaction) (the “Reserve
Amount”) have been duly authorized and have been or will be reserved for issuance upon purchase under this Agreement as Commitment
Shares.

 

(e)              No Conflicts. The execution, delivery and performance of the Transaction Documents by the Company and the consummation by
the Company of the transactions contemplated hereby and thereby (including, without limitation, the reservation for issuance and allotment
and issuance of the Purchase Shares and the Commitment Shares as contemplated herein) will, subject to the Pre-Emption Rights Disapplication
Requirement, not (i) result in a violation of the Company’s memorandum and articles of association (including any Certificate of
Designations, Preferences and Rights of any outstanding series of preferred shares of the Company, if any) or (ii) conflict with, or constitute
a default (or an event which with notice or lapse of time or both would become a default) under, or give to others any rights of termination,
amendment, acceleration or cancellation of, any agreement, indenture or instrument to which the Company or any of its Subsidiaries is
a party, or result in a violation of any law, rule, regulation, order, judgment or decree (including federal and state securities laws,
the laws of Ireland, the rules of the Financial Industry Regulatory Authority, Inc. and regulations and the rules and regulations of the
Principal Market applicable to the Company or any of its Subsidiaries) or by which any property or asset of the Company or any of its
Subsidiaries is bound or affected, except in the case of conflicts, defaults, terminations, amendments, accelerations, cancellations and
violations under clause (ii), which could not reasonably be expected to result in a Material Adverse Effect. Neither the Company nor any
Subsidiary is in violation or default of or under (i) any provision of the Company’s memorandum and articles of association or under
any Subsidiary’s respective certificate or articles of incorporation, memorandum or articles of association, any certificate of
designation, preferences and rights of any outstanding series of preferred shares, organizational charter or bylaws, respectively, (ii)
the terms of any indenture, contract, lease, mortgage, deed of trust, note agreement, loan agreement or other agreement, obligation, condition,
covenant or instrument to which it is a party or bound or to which its property is subject, or (iii) any judgment, order or decree of
any court, regulatory body, administrative agency, governmental body, arbitrator or other authority having jurisdiction over the Company
or any of its properties, which, in the case of clauses (ii) or (iii), could be reasonably expected to have a Material Adverse Effect.
Except as specifically contemplated by this Agreement and as required under the Securities Act or applicable state securities laws and
the rules and regulations of the Principal Market and for the statutory filing that is required to be made by the Company at the Irish
Companies Registration Office in respect of shares issued by it in the previous 30 day period, the Company is not required to obtain any
consent, authorization or order of, or make any filing or registration with, any court or governmental agency or any regulatory or self-regulatory
agency in order for it to execute, deliver or perform any of its obligations under or contemplated by the Transaction Documents in accordance
with the terms hereof or thereof. Except as set forth elsewhere in this Agreement, all consents, authorizations, orders, filings and registrations
which the Company is required to obtain pursuant to the preceding sentence shall be obtained or effected on or prior to the Commencement
Date.

 

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(f)              SEC
Documents; Financial Statements. The Company is, and has been during the 12-month period immediately preceding the Execution
Date, required to file reports, schedules, forms, statements and other documents with the SEC pursuant to Section 13 or 15(d) of the
Exchange Act. The Company has filed all reports, schedules, forms, statements and other documents required to be filed by the
Company with the SEC under the Exchange Act, including pursuant to Section 13(a) or 15(d) thereof, and under the Securities Act, in
each case during the 12-month period immediately preceding the Execution Date (the foregoing materials, including the exhibits
thereto and documents incorporated by reference therein, being collectively referred to herein as the “SEC
Documents”) on a timely basis or has received a valid extension of such time of filing and has filed any such SEC
Documents prior to the expiration of any such extension. As of their respective dates, the SEC Documents complied in all material
respects with the requirements of the Securities Act and the Exchange Act, as applicable. None of the SEC Documents, when filed,
contained any untrue statement of a material fact or omitted to state a material fact required to be stated therein or necessary in
order to make the statements therein, in the light of the circumstances under which they were made, not misleading. The financial
statements of the Company included in the SEC Documents comply in all material respects with applicable accounting requirements and
the rules and regulations of the SEC with respect thereto as in effect at the time of filing. Such financial statements
(i) have been prepared in accordance with United States generally accepted accounting principles applied on a consistent basis
during the periods involved (“GAAP”), except as may be otherwise specified in such financial statements or the
notes thereto and except that unaudited financial statements may not contain all footnotes required by GAAP, and (ii) fairly
present in all material respects the financial position of the Company and its consolidated Subsidiaries as of and for the dates
thereof and the results of operations and cash flows for the periods then ended, subject, in the case of unaudited statements, to
normal, immaterial, year-end audit adjustments. Except as publicly available through the SEC’s Electronic Data Gathering,
Analysis, and Retrieval system (EDGAR), or in connection with a confidential treatment request submitted to the SEC, the Company has
received no notices or correspondence from the SEC for the one year preceding the Execution Date other than SEC comment letters
relating to the Company’s filings under the Exchange Act and the Securities Act. There are no “open” SEC comments.
To the Company’s knowledge, the SEC has not commenced any enforcement proceedings against the Company or any of its
Subsidiaries.

 

(g)              Absence
of Certain Changes. Except as disclosed in the SEC Documents, since December 31, 2020, there has been no change that would constitute
a Material Adverse Effect. The Company has not taken any steps, and does not currently expect to take any steps, to seek protection pursuant
to any Bankruptcy Law nor does the Company or any of its Subsidiaries have any knowledge or reason to believe that its creditors intend
to initiate involuntary bankruptcy or insolvency proceedings. The Company is financially solvent and is generally able to pay its debts
as they become due.

 

(h)              Absence
of Litigation. Except as disclosed in the SEC Documents, there is no action, suit, proceeding, inquiry or investigation before or
by any court, public board, government agency, self-regulatory organization or body pending or, to the knowledge of the Company or any
of its Subsidiaries, threatened against or affecting the Company or any of its Subsidiaries, the Ordinary Shares or any of the Company’s
or its Subsidiaries’ officers or directors in their capacities as such, which would reasonably be expected to have a Material Adverse
Effect.

 

(i)               Acknowledgment
Regarding Investor’s Status. The Company acknowledges and agrees that the Investor is acting solely in the capacity
of arm’s length purchaser with respect to the Transaction Documents and the transactions contemplated hereby and thereby. The Company
further acknowledges that the Investor is not acting as a financial advisor or fiduciary of the Company (or in any similar capacity)
with respect to the Transaction Documents and the transactions contemplated hereby and thereby and any advice given by the Investor or
any of its representatives or agents in connection with the Transaction Documents and the transactions contemplated hereby and thereby
is merely incidental to the Investor’s purchase of the Securities. The Company further represents to the Investor that the Company’s
decision to enter into the Transaction Documents has been based solely on the independent evaluation by the Company and its representatives
and advisors.

 

(j)                No
General Solicitation; No Aggregated Offering. Neither the Company, nor any of its affiliates, nor any Person acting on its or
their behalf, has engaged in any form of general solicitation or general advertising (within the meaning of Regulation D under the
Securities Act) in connection with the offer or sale of the Securities. Neither the Company, nor or any of its affiliates, nor any
Person acting on their behalf has, directly or indirectly, made any offers or sales of any security or solicited any offers to buy
any security, under circumstances that would require registration of the offer and sale of any of the Securities under the
Securities Act, whether through integration with prior offerings or otherwise, or cause the offering of the Securities contemplated
hereby to be aggregated with prior offerings by the Company in a manner that would require shareholder approval pursuant to the
rules of the Principal Market on which any of the securities of the Company are listed or designated. The issuance and sale of the
Securities hereunder does not contravene the rules and regulations of the Principal Market.

 

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(k)              Intellectual Property Rights. Except as disclosed in the SEC Documents, the Company and its Subsidiaries own or possess
adequate rights or licenses to use all material trademarks, trade names, service marks, service mark registrations, service names, patents,
patent rights, copyrights, inventions, licenses, approvals, government authorizations, trade secrets and rights necessary to conduct their
respective businesses as now conducted, except as such failure to own, possess or acquire such rights would not reasonably be expected,
individually or in the aggregate, to result in a Material Adverse Effect. Except as disclosed in the SEC Documents, none of the Company’s
material trademarks, trade names, service marks, service mark registrations, service names, patents, patent rights, copyrights, inventions,
licenses, approvals, government authorizations, trade secrets or other intellectual property rights have expired or terminated, or, by
the terms and conditions thereof, could expire or terminate within two years from the Execution Date, except as would not reasonably be
expected to have a Material Adverse Effect. The Company is not, and to the knowledge of the Company, no other party is in material breach
of any license agreement related to the intellectual property rights of the Company. The Company and its Subsidiaries do not have any
knowledge of any infringement by the Company or its Subsidiaries of any material trademark, trade name rights, patents, patent rights,
copyrights, inventions, licenses, service names, service marks, service mark registrations, trade secret or other similar rights of others,
or of any such development of similar or identical trade secrets or technical information by others, and there is no claim, action or
proceeding being made or brought against, or to the Company’s knowledge, being threatened against, the Company or its Subsidiaries
regarding trademark, trade name, patents, patent rights, invention, copyright, license, service names, service marks, service mark registrations,
trade secret or other infringement, which would reasonably be expected to have a Material Adverse Effect.

 

(l)               Environmental Laws. The Company and its Subsidiaries (i) are in compliance with all applicable foreign, federal, state and
local laws and regulations relating to the protection of human health and safety, the environment or hazardous or toxic substances or
wastes, pollutants or contaminants (“Environmental Laws”), (ii) have received all permits, licenses or other approvals
required of them under applicable Environmental Laws to conduct their respective businesses and (iii) are in compliance with all terms
and conditions of any such permit, license or approval, except where, in each of the three foregoing clauses, the failure to so comply
would not reasonably be expected to have, individually or in the aggregate, a Material Adverse Effect.

 

(m)             Title.
Except as set forth in the SEC Documents, the Company and its Subsidiaries have good and marketable title in all real and personal property
owned by them that is material to the business of the Company and its Subsidiaries, taken as a whole, in each case free and clear of
all Liens, except (i) for Liens as do not materially affect the value of such property and do not materially interfere with the use made
and proposed to be made of such property by the Company and its Subsidiaries, (ii) for Liens for the payment of federal, state, foreign
or other taxes, the payment of which is neither delinquent nor subject to penalties, and (iii) Liens related to the Company’s Loan
and Security Agreement with Hercules Capital, Inc. Any real property and facilities held under lease by the Company and its Subsidiaries
are held by them under valid, subsisting and enforceable leases with which the Company and its Subsidiaries are in compliance with such
exceptions as are not material and do not interfere in any material respect with the use made and proposed to be made of such property
and buildings by the Company and its Subsidiaries.

 

     13

     

    

 

(n)             
Insurance. The Company and each of its Subsidiaries are insured by insurers of recognized financial responsibility against
such losses and risks and in such amounts as management of the Company believes to be prudent and customary in the businesses in which
the Company and its Subsidiaries are engaged. Neither the Company nor any such Subsidiary has any reason to believe that it will not be
able to renew its existing insurance coverage as and when such coverage expires or to obtain similar coverage from similar insurers as
may be necessary to continue its business at a cost that would not reasonably be expected to have a Material Adverse Effect.

 

(o)              Regulatory Permits. Except as set forth in the SEC Documents, the Company and its Subsidiaries possess all material certificates,
authorizations and permits issued by the appropriate federal, state, local or foreign regulatory authorities necessary to conduct their
respective businesses as currently conducted, except where the failure to possess such certificates, authorizations, or permits would
not reasonably be expected to have a Material Adverse Effect, and neither the Company nor any such Subsidiary has received any notice
of proceedings relating to the revocation or modification of any such material certificate, authorization or permit except such notices
that would not reasonably be expected to have a Material Adverse Effect.

 

(p)             Tax
Status. The Company and each of its Subsidiaries has made or filed all federal and state and foreign income and all other material
tax returns, reports and declarations required by any jurisdiction to which it is subject (unless and only to the extent that the Company
and each of its Subsidiaries has set aside on its books provisions reasonably adequate for the payment of all unpaid and unreported taxes)
and has paid all taxes and other governmental assessments and charges that are material in amount, shown or determined to be due on such
returns, reports and declarations, except those being contested in good faith and has set aside on its books provision reasonably adequate
for the payment of all taxes for periods subsequent to the periods to which such returns, reports or declarations apply, and except as
would not reasonably be expected to have a Material Adverse Effect. There are no unpaid taxes in any material amount claimed to be due
by the taxing authority of any jurisdiction, and the officers of the Company know of no basis for any such claim.

 

(q)             Transactions
with Affiliates. Except as disclosed in the SEC Documents, to the Company’s knowledge, none of the Company’s shareholders
covered by Item 403(a) of Regulation S-K, officers or directors or any family member or
affiliate of any of the foregoing, has either directly or indirectly an interest in, or is a party to, any transaction that is required
to be disclosed as a related party transaction pursuant to Item 404 of Regulation S-K promulgated under the Securities Act.

 

(r)               Application of Takeover Protections. The Company and its Board of Directors have taken or will take prior to the Commencement
Date all necessary action, if any, in order to render inapplicable any control share acquisition, business combination, poison pill (including
any distribution under a rights agreement) or other similar anti-takeover provision under the Company’s memorandum and articles
of association, the laws of its jurisdiction of incorporation or otherwise which is or would become applicable to the Investor as a result
of the transactions contemplated by this Agreement, including, without limitation, the Company’s issuance of the Securities and
the Investor’s ownership of the Securities.

 

(s)              Disclosure.
Except with respect to the material terms and conditions of the transactions contemplated by the Transaction Documents that will be
timely publicly disclosed by the Company, the Company confirms that neither it nor any other Person acting on its behalf has
provided the Investor or its agents or counsel with any information that it believes constitutes or might reasonably be expected to
constitute material, non-public information which is not otherwise disclosed in the SEC Documents. The Company understands and
confirms that the Investor will rely on the foregoing representation in effecting purchases and sales of securities of the Company.
All of the disclosure furnished by or on behalf of the Company in the SEC Documents to the Investor regarding the Company, its
business and the transactions contemplated hereby, including the disclosure schedules to this Agreement, taken as a whole, is true
and correct in all material respects and does not contain any untrue statement of a material fact or omit to state any material fact
necessary in order to make the statements made therein, in light of the circumstances under which they were made, not misleading.
The Company acknowledges and agrees that the Investor neither makes nor has made any representations or warranties with respect to
the transactions contemplated hereby other than those specifically set forth in Section 3 hereof.

 

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(t)              Foreign
Corrupt Practices; Money Laundering Laws; Sanctions. Neither the Company nor any of the Subsidiaries nor, to the knowledge of the
Company, any director, officer, agent, employee or affiliate of the Company or any of the Subsidiaries is aware of or has taken any action,
directly or indirectly, that would result in a violation by such persons of the Foreign Corrupt Practices Act of 1977, as amended, and
the rules and regulations thereunder (the “FCPA”), including, without limitation, making use of the mails or any means
or instrumentality of interstate commerce corruptly in furtherance of an offer, payment, promise to pay or authorization of the payment
of any money, or other property, gift, promise to give, or authorization of the giving of anything of value to any “foreign official”
(as such term is defined in the FCPA) or any foreign political party or official thereof or any candidate for foreign political office,
in contravention of the FCPA; and the Company, the Subsidiaries and, to the knowledge of the Company, its affiliates have conducted their
businesses in compliance with the FCPA and have instituted and maintain policies and procedures designed to ensure, and which are reasonably
expected to continue to ensure, continued compliance therewith. The operations of the Company and the Subsidiaries are and have been
conducted at all times in compliance with applicable financial recordkeeping and reporting requirements and the money laundering statutes
and the rules and regulations thereunder and any related or similar rules, regulations or guidelines, issued, administered or enforced
by any applicable governmental agency, including, without limitation, Title 18 U.S. Code section 1956 and 1957, the Patriot Act, the
Bank Secrecy Act, and international anti-money laundering principles or procedures by an intergovernmental group or organization, such
as the Financial Action Task Force on Money Laundering, of which the United States is a member and with which designation the United
States representative to the group or organization continues to concur, all as amended, and any Executive order, directive or regulation
pursuant to the authority of any of the foregoing, or any orders or licenses issued thereunder (collectively, the “Money Laundering
Laws”), and no action, suit or proceeding by or before any court or governmental agency, authority or body or any arbitrator
involving the Company or any of its Subsidiaries with respect to the Money Laundering Laws is pending or, to the knowledge of the Company,
threatened. Neither the Company nor any of its Subsidiaries, nor to the knowledge of the Company any of the directors, officers or employees,
agents, affiliates or representatives of the Company or its Subsidiaries, is an individual or entity that is, or is owned or controlled
by an individual or entity that is: (i) the subject of any sanctions administered or enforced by the U.S. Department of Treasury's Office
of Foreign Assets Control, the United Nations Security Council, the European Union, Her Majesty’s Treasury, or other relevant sanctions
authority (collectively, “Sanctions”), nor (ii) located, organized or resident in a country or territory that is the
subject of Sanctions (including, without limitation, the Balkans, Belarus, Burma/Myanmar, Cote D’Ivoire, Cuba, Democratic Republic
of Congo, Iran, Iraq, Liberia, Libya, North Korea, Sudan, Syria, Venezuela and Zimbabwe). Neither the Company nor any of its Subsidiaries
will, directly or indirectly, use the proceeds of the transactions contemplated hereby, or lend, contribute or otherwise make available
such proceeds to any subsidiary, joint venture partner or other individual or entity: (i) to fund or facilitate any activities or business
of or with any individual or entity or in any country or territory that, at the time of such funding or facilitation, is the subject
of Sanctions or (ii) in any other manner that will result in a violation of Sanctions by any individual or entity (including any individual
or entity participating in the transactions contemplated hereby, whether as underwriter, advisor, investor or otherwise). For the past
five years, neither the Company nor any of its Subsidiaries has knowingly engaged in, and is not now knowingly engaged in, any dealings
or transactions with any individual or entity, or in any country or territory, that at the time of the dealing or transaction is or was
the subject of Sanctions.

 

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(u)             DTC Eligibility. The Company, through the Transfer Agent, currently participates in the DTC Fast Automated Securities Transfer
(FAST) Program and the Ordinary Shares can be transferred electronically to third parties via the DTC Fast Automated Securities Transfer
(FAST) Program.

 

(v)             Sarbanes-Oxley. The Company maintains a system of internal accounting controls sufficient to provide reasonable assurances
that (A) transactions are executed in accordance with management’s general or specific authorization; (B) transactions are recorded
as necessary to permit preparation of financial statements in conformity with GAAP and to maintain accountability for assets; (C) access
to assets is permitted only in accordance with management’s general or specific authorization; and (D) the recorded accountability
for assets is compared with existing assets at reasonable intervals and appropriate action is taken with respect to any differences. Except
as disclosed in the SEC Documents, the Company is not aware of any “material weaknesses” (each as defined by the rules adopted
by the SEC) in its internal control over financial reporting, or any fraud, whether or not material, that involves management or other
employees of the Company and its Subsidiaries who have a significant role in the Company’s internal controls; and except as disclosed
in the SEC Documents, since the end of the latest audited fiscal year, there has been no change in the Company’s internal control
over financial reporting (whether or not remediated) that has materially affected, or is reasonably likely to materially affect, the Company’s
internal control over financial reporting. The Board of Directors has, subject to the exceptions, cure periods and the phase in periods
specified in the applicable stock exchange rules of the Principal Market (the “Exchange Rules”), validly appointed
an audit committee to oversee internal accounting controls whose composition satisfies the applicable independence and other requirements
of the Exchange Rules and the rules under the Exchange Act, and the Board of Directors has adopted a charter for the audit committee that
satisfies the requirements of the Exchange Rules and the rules under the Exchange Act. No relationship, direct or indirect, exists between
or among the Company, on the one hand, and the directors, officers, shareholders, customers or suppliers of the Company, on the other
hand, which is required to be described in the SEC Documents which is not so described. The Company has not, directly or indirectly, extended
or maintained credit, or arranged for the extension of credit, or renewed an extension of credit, in the form of a personal loan to or
for any of its directors or executive officers in violation of Applicable Laws, including Section 402 of the Sarbanes-Oxley Act of 2002
and the rules and regulations promulgated in connection therewith (the “Sarbanes-Oxley Act”).

 

(w)             Certain Fees. No brokerage or finder’s fees or commissions are or will be payable by the Company to any broker, financial
advisor or consultant, finder, placement agent, investment banker, bank or other Person with respect to the allotment and issuance of
the Securities. The Investor shall have no obligation with respect to any fees or with respect to any claims made by or on behalf of other
Persons for fees of a type contemplated in this Section 4(w) that may be due in connection with the transactions contemplated by
the Transaction Documents.

 

(x)              Investment Company. The Company is not, and immediately after giving effect to the allotment and issuance of the Purchase
Shares in accordance with this Agreement and the application of the proceeds as described in the Registration Statement under the caption
 “Use of Proceeds,” will not be, an “investment company” within the meaning of the Investment Company Act of 1940,
as amended (the “Investment Company Act”).

 

(y)             Listing
and Maintenance Requirements. The Ordinary Shares are registered pursuant to Section 12(b) of the Exchange Act, and the Company
has taken no action designed to, or which to its knowledge is likely to have the effect of, terminating the registration of the
Ordinary Shares pursuant to the Exchange Act nor has the Company received any notification that the SEC is currently contemplating
terminating such registration. Except as disclosed in the SEC Documents, the Company has not, in the twelve (12) months preceding
the Execution Date, received any notice from the Principal Market to the effect that the Company is not in compliance with the
listing or maintenance requirements of the Principal Market. Except as disclosed in the SEC Documents, the Company is in compliance
with all such listing and maintenance requirements.

 

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(z)               
Accountants. The Company’s accountants are set forth in the SEC Documents and, to the knowledge of the Company, such
accountants are an independent registered public accounting firm as required by the Securities Act.

 

(aa)            
No Market Manipulation. The Company has not, and to its knowledge no Person acting on its behalf has, (i) taken, directly
or indirectly, any action designed to cause or to result in the stabilization or manipulation of the price of any security of the Company
to facilitate the sale or resale of any of the Securities, (ii) sold, bid for, purchased, or, paid any compensation for soliciting purchases
of, any of the Securities, or (iii) paid or agreed to pay to any Person any compensation for soliciting another to purchase any other
securities of the Company.

 

(bb)           
Benefit Plans; Labor Matters. Each benefit and compensation plan, agreement, policy and arrangement that is maintained,
administered or contributed to by the Company for current or former employees or directors of, or independent contractors with respect
to, the Company has been maintained in compliance in all material respects with its terms and the requirements of any applicable statutes,
orders, rules and regulations, and the Company has complied in all material respects with all applicable statutes, orders, rules and regulations
in regard to such plans, agreements, policies and arrangements. Each share option granted under any equity incentive plan of the Company
(each, a “Share Plan”) since the Company’s initial public offering was granted with a per share exercise price
no less than the market price per share on the grant date of such option in accordance with the rules of the Principal Market, and no
such grant involved any “back-dating,” “forward-dating” or similar practice with respect to the effective date
of such grant; each such option (i) was granted in compliance in all material respects with Applicable Laws and with the applicable
Share Plan(s), (ii) was duly approved by the Board of Directors, a duly authorized committee thereof, and (iii) has been (or will
be, if granted after June 30, 2021) properly accounted for in the Company’s financial statements and disclosed, to the extent required,
in the Company’s filings or submissions with the SEC, and the Principal Market. No labor problem or dispute with the employees of
the Company exists or is threatened or imminent, and the Company is not aware of any existing or imminent labor disturbance by the employees
of any of its principal suppliers or contractors, that would have a Material Adverse Effect.

 

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(cc)             Regulatory.
During the 12-month period immediately preceding the Execution Date, except as described in the SEC Documents, the Company and each
of its Subsidiaries: (A) was and at all times has been in material compliance with all applicable U.S., Irish and other foreign
statutes, rules, regulations, or guidance applicable to Company and its Subsidiaries (“Applicable Laws”), except
as could not, individually or in the aggregate, reasonably be expected to result in a Material Adverse Effect; (B) have not received
any material written notice of adverse finding, warning letter, untitled letter or other correspondence or notice from the U.S. Food
and Drug Administration or any other federal, state, or foreign governmental authority having authority over the Company
(“Governmental Authority”) alleging or asserting material noncompliance with any Applicable Laws or any licenses,
certificates, approvals, clearances, authorizations, permits and supplements or amendments thereto required by any such Applicable
Laws (“Authorizations”); (C) possess all material Authorizations and such material Authorizations are valid and
in full force and effect and, to the Company’s knowledge, are not in violation of any term of any such material
Authorizations; (D) have not received written notice of any claim, action, suit, proceeding, hearing, enforcement, investigation,
arbitration or other action from any Governmental Authority or third party alleging that any product, operation or activity is in
violation of any Applicable Laws or Authorizations and have no knowledge that any such Governmental Authority or third party is
considering any such claim, litigation, arbitration, action, suit, investigation or proceeding; (E) have not received written notice
that any Governmental Authority has taken, is taking or intends to take action to limit, suspend, modify or revoke any
Authorizations and the Company has no knowledge that any such Governmental Authority is considering such action; and (F) have filed,
obtained, maintained or submitted all material reports, documents, forms, notices, applications, records, claims, submissions and
supplements or amendments as required by any Applicable Laws or material Authorizations and that all such reports, documents, forms,
notices, applications, records, claims, submissions and supplements or amendments were complete and correct in all material respects
on the date filed (or were corrected or supplemented by a subsequent submission). During the 12-month period immediately preceding
the Execution Date, to the Company’s knowledge, the studies, tests and preclinical and clinical trials conducted by or on
behalf of the Company were and, if still pending, are, in all material respects, being conducted in accordance with experimental
protocols, procedures and controls pursuant to accepted professional scientific standards and all Applicable Laws, including,
without limitation, the United States Federal Food, Drug and Cosmetic Act and the laws, rules and regulations of the Therapeutic
Products Directorate, the European Medicines Agency, the European Commission's Enterprise Directorate General and the regulatory
agencies within each Member State granting Marketing Authorization through the Mutual Recognition Procedure or any other federal,
provincial, state, local or foreign governmental or quasi-governmental body exercising comparable authority; the descriptions of the
results of such studies, tests and trials contained in the SEC Documents are accurate and complete in all material respects and
fairly present the data derived from such studies, tests and trials in all material respects; the descriptions in the SEC Documents
of the results of such clinical trials are consistent in all material respects with such results and to the Company’s
knowledge there are no other studies or other clinical trials whose results are materially inconsistent with or otherwise materially
call into question the results described or referred to in the SEC Documents; and except as described in the SEC documents, the
Company has not received any notices or correspondence from any Governmental Authority requiring the termination, suspension or
material modification of any studies, tests or preclinical or clinical trials conducted by or on behalf of the Company or its
Subsidiaries. The Company uses commercially reasonable efforts to review, from time to time, the progress and results of the
studies, tests and preclinical and clinical trials and, based upon (i) the information provided to the Company by the third parties
conducting such studies, tests, preclinical studies and clinical trials that are described in the SEC Documents and the
Company’s review of such information, and (ii) the Company’s actual knowledge, the Company reasonably believes that the
descriptions of the results of such studies, tests, preclinical studies and clinical trials are accurate and complete in all
material respects.

 

(dd)           
No Disqualification Events. None of the Company, any of its predecessors, any affiliated issuer, any director, executive
officer, other officer of the Company participating in the offering contemplated hereby, any beneficial owner of 20% or more of the Company’s
outstanding voting equity securities, calculated on the basis of voting power, nor any promoter (as that term is defined in Rule 405 under
the Securities Act) connected with the Company in any capacity at the time of sale (each, an “Issuer Covered Person”)
is subject to any of the “Bad Actor” disqualifications described in Rule 506(d)(1)(i) to (viii) under the Securities Act (a
 “Disqualification Event”), except for a Disqualification Event covered by Rule 506(d)(2) or (d)(3) under the Securities
Act. The Company has exercised reasonable care to determine whether any Issuer Covered Person is subject to a Disqualification Event.

 

(ee)             Passive
Foreign Investment Company. The Company was not a “passive foreign investment company,” as such term is defined in
the Internal Revenue Code of 1986, as amended (the “Code”), for the last completed fiscal year for which audited
financial statements of the Company have been filed with the SEC. Neither the Company nor any Subsidiary is, and, after giving
effect to the allotment and issuance of the Securities and the application of the proceeds thereof, neither of them will be, a
 “controlled foreign corporation” as defined by the Code.

 

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(ff)              
 Cybersecurity. Except as otherwise disclosed in the SEC Documents, (i) there has been no security breach or other compromise
of or relating to any of the Company’s or any of its Subsidiaries’ information technology and computer systems, networks,
hardware, software, data (including the data of their respective customers, employees, suppliers, vendors and any third party data maintained
by or on behalf of them), equipment or technology (collectively, “IT Systems and Data”) and neither the Company nor
any of its Subsidiaries has been notified of, and has no knowledge of any event or condition that would reasonably be expected to result
in, any security breach or other compromise to its IT Systems and Data, except as would not, in the case of this clause (i), individually
or in the aggregate, be reasonably expected to have a Material Adverse Effect; (ii) the Company and each of its Subsidiaries is presently
in compliance with all applicable laws or statutes and all judgments, orders, rules and regulations of any court or arbitrator or governmental
or regulatory authority, internal policies and contractual obligations relating to the privacy and security of IT Systems and Data and
to the protection of such IT Systems and Data from unauthorized use, access, misappropriation or modification, except as would not, in
the case of this clause (ii), individually or in the aggregate, be reasonably expected to have a Material Adverse Effect; and (iii) the
Company and its Subsidiaries have implemented information system backup and disaster recovery procedures consistent with industry standards
and practices.

 

(gg)           
Compliance with Data Privacy Laws. Except as otherwise disclosed in the SEC Documents or as would not, individually or in
the aggregate, reasonably be expected to have a Material Adverse Effect, (i) the Company and its Subsidiaries are, in compliance with
all applicable state and federal data privacy and security laws and regulations, including without limitation the Health Insurance Portability
and Accountability Act of 1996 (“HIPAA”), as amended by the Health Information Technology for Economic and Clinical
Health Act (the “HITECH Act”), and (ii) the Company and its Subsidiaries have taken commercially reasonable actions
to prepare to comply with, and since January 1, 2019, have been and currently are in compliance with, the European Union General Data
Protection Regulation (“GDPR”) (EU 2016/679) (collectively, the “Privacy Laws”). Except as otherwise
disclosed in the SEC Documents or as would not, individually or in the aggregate, reasonably be expected to have a Material Adverse Effect,
neither the Company nor any of its Subsidiaries (i) has received notice of any actual or potential liability under or relating to, or
actual or potential violation of, any of the Privacy Laws, or has knowledge of any event or condition that would reasonably be expected
to result in any such notice; (ii) is currently conducting or paying for, in whole or in part, any investigation, remediation, or other
corrective action pursuant to any Privacy Law; or (iii) is a party to any order, decree or agreement that imposes any obligation or liability
under any Privacy Law.

 

(hh)           
Absence of Schedules. In the event that on the Commencement Date, the Company does not deliver any disclosure schedule contemplated
by this Agreement, the Company hereby acknowledges and agrees that each such undelivered disclosure schedule shall be deemed to read as
follows: “Nothing to Disclose”.

 

		5.	COVENANTS.

 

(a)                Filing
of Current Report and Registration Statement. The Company agrees that it shall, within the time required under the Exchange Act,
file with the SEC a report on Form 8-K relating to the transactions contemplated by, and describing the material terms and
conditions of, the Transaction Documents (the “Current Report”). The Company shall also file with the SEC within
ten (10) Business Days of the Execution Date, a new registration statement (the “Registration Statement”)
covering the resale of Securities in accordance with the terms of the Registration Rights Agreement, and until the Registration
Statement is declared effective, the Company shall not file any other registration statement with the SEC under the Securities Act
(other than a registration statement on Form S-8). The Company shall permit the Investor to review and comment upon the final
pre-filing draft version of the Registration Statement at least two (2) Business Days prior to the filing of each with the SEC, and
the Company shall not file the Registration Statement with the SEC in a form to which the Investor reasonably objects. The Investor
shall use its reasonable best efforts to comment upon the final pre-filing draft version of the Registration Statement within one
(1) Business Day from the date the Investor receives it from the Company.

 

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(b)               
Blue Sky. The Company shall take all such action, if any, as is reasonably necessary in order to obtain an exemption for
or to register or qualify (i) the issuance of the Commitment Shares and the sale of the Purchase Shares to the Investor under this Agreement
and (ii) any subsequent resale of all Securities by the Investor, in each case, under applicable securities or “Blue Sky”
laws of the states of the United States in such states as is reasonably requested by the Investor during the Registration Period (as defined
in the Registration Rights Agreement), and shall provide evidence of any such action so taken to the Investor.

 

(c)               
Listing/DTC. The Company shall promptly secure the listing of all of the Securities to be issued to the Investor hereunder
on the Principal Market (subject to official notice of issuance) and upon each other national securities exchange or automated quotation
system, if any, upon which the Ordinary Shares are then listed, and shall use commercially reasonable efforts to maintain, so long as
any Ordinary Shares shall be so listed, such listing of all such Securities from time to time issuable hereunder. The Company shall use
commercially reasonable efforts to maintain the listing of the Ordinary Shares on the Principal Market and shall comply in all material
respects with the Company’s reporting, filing and other obligations under the bylaws or rules and regulations of the Principal Market.
Neither the Company nor any of its Subsidiaries shall take any action that would reasonably be expected to result in the delisting or
suspension of the Ordinary Shares on the Principal Market. The Company shall promptly, and in no event later than the following Business
Day, provide to the Investor copies of any notices it receives from the Principal Market regarding the continued eligibility of the Ordinary
Shares for listing on the Principal Market; provided, however, that the Company shall not be required to provide the Investor copies of
any such notice that the Company reasonably believes constitutes material non-public information and that the Company would not be required
to publicly disclose such notice in any report or statement filed with the SEC under the Exchange Act (including on Form 8-K) or the Securities
Act. The Company shall pay, or shall procure the payment of, all fees and expenses in connection with satisfying its obligations under
this Section 5(c). The Company shall take all action necessary to ensure that its Ordinary Shares can be transferred electronically
as DWAC Shares.

 

(d)               
Prohibition of Short Sales and Hedging Transactions. The Investor agrees that beginning on the Execution Date and ending
on the date of termination of this Agreement as provided in Section 11, the Investor and its agents, representatives and affiliates
shall not in any manner whatsoever enter into or effect, directly or indirectly, any (i) “short sale” (as such term is defined
in Rule 200 of Regulation SHO of the Exchange Act) of the Ordinary Shares or (ii) hedging transaction, which establishes a net short position
with respect to the Ordinary Shares.

 

(e)                Issuance
of Commitment Shares. In consideration for the Investor’s execution and delivery of this Agreement and for the payment in
advance by the Investor of $0.01 per Commitment Share to the Company (being the nominal value of an Ordinary Share) (the
 “Commitment Shares Consideration”), the Company shall cause to be issued to the Investor a total of 632,474
Ordinary Shares (the “Commitment Shares”) and shall deliver to the Transfer Agent the Irrevocable Transfer Agent
Instructions with respect to the issuance of such Commitment Shares. For the avoidance of doubt, provided that the Investor shall
have paid and the Company shall have received the Commitment Shares Consideration, all of the Commitment Shares shall be fully
earned as of the Execution Date, whether or not the Commencement shall occur or any Purchase Shares are purchased by the Investor
under this Agreement and irrespective of any subsequent termination of this Agreement.

 

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(f)                
Due Diligence; Non-Public Information. During the term of this Agreement, the Investor shall have the right, from time to
time as the Investor may reasonably deem appropriate, and upon reasonable advance notice to the Company, to perform reasonable due diligence
on the Company during normal business hours. The Company and its officers and employees shall provide information and reasonably cooperate
with the Investor in connection with any reasonable request by the Investor related to the Investor’s due diligence of the Company.
Each party hereto agrees not to disclose any Confidential Information of the other party to any third party and shall not use the Confidential
Information for any purpose other than in connection with, or in furtherance of, the transactions contemplated hereby in full compliance
with applicable securities laws. Each party hereto acknowledges that the Confidential Information shall remain the property of the disclosing
party and agrees that it shall take all reasonable measures to protect the secrecy of any Confidential Information disclosed by the other
party. The receiving party may disclose Confidential Information to the extent such information is required to be disclosed by law, regulation
or order of a court of competent jurisdiction or regulatory authority, provided that the receiving party shall promptly notify the disclosing
party when such requirement to disclose arises, and shall cooperate with the disclosing party so as to enable the disclosing party to:
(i) seek an appropriate protective order; and (ii) make any applicable claim of confidentiality in respect of such Confidential Information;
and provided, further, that the receiving party shall disclose Confidential Information only to the extent required by the protective
order or other similar order, if such an order is obtained, and, if no such order is obtained, the receiving party shall disclose only
the minimum amount of such Confidential Information required to be disclosed in order to comply with the applicable law, regulation or
order. In addition, any such Confidential Information disclosed pursuant to this Section 5(f) shall continue to be deemed Confidential
Information. Notwithstanding anything in this Agreement to the contrary, from and after the Commencement Date, the Company and the Investor
agree that neither the Company nor any other Person acting on its behalf shall provide the Investor or its agents or counsel with any
information that the Company believes constitutes material, non-public information, unless a simultaneous public announcement thereof
is made by the Company in the manner contemplated by Regulation FD under the Exchange Act. In the event of a breach of the foregoing covenant
by the Company or any Person acting on its behalf (as determined in the reasonable good faith judgment of the Investor), in addition to
any other remedy provided herein or in the other Transaction Documents, if the Investor is holding any Securities at the time of the disclosure
of such material non-public information, the Investor shall have the right to make a public disclosure, in the form of a press release,
public advertisement or otherwise, of such material, non-public information without the prior approval by the Company; provided the Investor
shall have first provided notice to the Company that it believes, based on the advice of external counsel, it has received information
that constitutes material, non-public information, the Company shall have at least twenty-four (24) hours to either publicly disclose
such material, non-public information or to demonstrate to the Investor that such information does not constitute material, non-public
information prior to any such disclosure by the Investor. The Investor shall not have any liability to the Company, or any of its directors,
officers, employees, shareholders or agents, for any such disclosure. The Company understands and confirms that the Investor shall be
relying on the foregoing covenants in effecting transactions in securities of the Company.

 

(g)               
 Purchase Records. The Investor and the Company shall each maintain records showing the remaining Available Amount at any
given time and the dates and Purchase Amounts for each Regular Purchase, Accelerated Purchase and Additional Accelerated Purchase or shall
use such other method, reasonably satisfactory to the Investor and the Company.

 

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(h)               
 Taxes. The Company shall pay, or procure the payment of, any and all transfer, stamp or similar taxes that may be payable
with respect to the issuance and delivery of any Ordinary Shares to the Investor made under this Agreement.

 

(i)                
No Aggregation. From and after the Execution Date, neither the Company, nor any of its affiliates will, and the Company
shall use its reasonable best efforts to ensure that no Person acting on their behalf will, directly or indirectly, make any offers or
sales of any security or solicit any offers to buy any security, under circumstances that would cause this offering of the Securities
by the Company to the Investor to be aggregated with other offerings by the Company in a manner that would require shareholder approval
pursuant to the rules of the Principal Market on which any of the securities of the Company are listed or designated unless shareholder
approval is obtained before the closing of such subsequent transaction in accordance with the rules of such Principal Market.

 

(j)                
Use of Proceeds. The Company will use the net proceeds from the offering for any corporate purpose at the sole discretion
of the Company.

 

(k)               
Other Transactions. During the term of this Agreement, the Company shall not enter into, announce or recommend to its shareholders
any agreement, plan, arrangement or transaction in or of which the terms thereof would restrict, materially delay, conflict with or impair
the ability or right of the Company to perform its obligations under the Transaction Documents, including, without limitation, the obligation
of the Company to deliver the Securities to the Investor in accordance with the terms of the Transaction Documents.

 

(l)                
No Integration. From and after the Execution Date, neither the Company, nor or any of its affiliates will, and the Company
shall use its reasonable best efforts to ensure that no Person acting on their behalf will, directly or indirectly, make any offers or
sales of any security or solicit any offers to buy any security, under circumstances that would require registration of the offer and
sale of any of the Securities under the Securities Act.

 

(m)             
Limitation on Similar Financings. The Company shall be prohibited from entering into any “equity line” or similar
transaction whereby an investor is irrevocably bound to purchase securities over a period of time from the Company at a price based on
the market price of the Ordinary Shares at the time of such purchase until the earlier of (i) six (6) months from the date of termination
of this Agreement or (ii) the Maturity Date; provided, however, that this Section 5(m) shall not be deemed to prohibit
the issuance of Ordinary Shares pursuant to an “at-the-market offering” by the Company exclusively through a registered broker-dealer
acting as agent of the Company pursuant to a written agreement between the Company and such registered broker-dealer. The Investor shall
be entitled to seek injunctive relief against the Company to preclude any such issuance prohibited by this Section 5(m), which
remedy shall be in addition to any right to collect damages, without the necessity of showing economic loss and without any bond or other
security being required.

 

(n)                Publicity.
The Company shall afford the Investor and its counsel with the opportunity to review and comment upon, shall consult with the
Investor and its counsel on the form and substance of, and shall give reasonable consideration to all such comments from the
Investor or its counsel on, any press release, SEC filing (other than any periodic report on Form 10-K or Form 10-Q) or any other
public disclosure (other than statutory filings that are required to be made by the Company at the Irish Companies Registration
Office) by or on behalf of the Company relating to the Investor, its purchases hereunder or any aspect of the Transaction Documents
or the transactions contemplated thereby, not less than 24 hours prior to the issuance, filing or public disclosure thereof;
provided that the foregoing shall not apply to any disclosures that are substantially similar to disclosures the Investor has
previously reviewed or that disclose only the number Ordinary Shares sold under this Agreement and the proceeds raised therefrom.
The Investor must be provided with a final version of any such information related to the Investor contained within such press
release, SEC filing or other public disclosure at least 24 hours prior to any release, filing or use by the Company thereof, or such
shorter time as is reasonably necessary.

 

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		6.	TRANSFER AGENT INSTRUCTIONS.

 

(a)               
Promptly following receipt by the Company of the Commitment Shares Consideration, the Company shall issue irrevocable instructions
to the Transfer Agent to issue the Commitment Shares in accordance with the terms of this Agreement (the “Irrevocable Transfer
Agent Instructions”). The certificate(s) or book-entry statement(s) representing the Commitment Shares, except as set forth
below, shall bear the following restrictive legend (the “Restrictive Legend”) and no other legend whatsoever.

 

THE SECURITIES REPRESENTED BY THIS CERTIFICATE
HAVE NOT BEEN REGISTERED UNDER THE SECURITIES ACT OF 1933, AS AMENDED, OR APPLICABLE STATE SECURITIES LAWS. THE SECURITIES
HAVE BEEN ACQUIRED FOR INVESTMENT AND MAY NOT BE OFFERED FOR SALE, SOLD, TRANSFERRED OR ASSIGNED IN THE ABSENCE OF AN EFFECTIVE
REGISTRATION STATEMENT FOR THE SECURITIES UNDER THE SECURITIES ACT OF 1933, AS AMENDED, OR APPLICABLE STATE SECURITIES LAWS,
UNLESS SOLD PURSUANT TO: (1) RULE 144 UNDER THE SECURITIES ACT OF 1933, AS AMENDED, OR (2) AN
OPINION OF HOLDER’S COUNSEL, IN A CUSTOMARY FORM, THAT REGISTRATION IS NOT REQUIRED UNDER SAID ACT OR APPLICABLE
STATE SECURITIES LAWS.

 

(b)                On
the earlier of (i) the date the Registration Statement is declared effective by the SEC and (ii) such time that the Investor shall
request, provided all conditions of Rule 144 under the Securities Act are met and the Investor has delivered to the Company a
representation letter confirming such Investors’ conditions have been met on which counsel to the Company may rely, the
Company shall, no later than two (2) Business Days following the delivery by the Investor to the Company or the Transfer Agent of
one or more legended certificates or book-entry statements representing the Commitment Shares (which certificates or book-entry
statements the Investor shall promptly deliver on or prior to the first to occur of the events described in clauses (i) and (ii) of
this sentence), as directed by the Investor, issue and deliver (or cause to be issued and delivered) to the Investor, as requested
by the Investor, either: (A) a certificate or book-entry statement representing such Commitment Shares that is free from all
restrictive and other legends or (B) a number of Ordinary Shares equal to the number of Commitment Shares represented by the
certificate(s) or book-entry statement(s) so delivered by the Investor as DWAC Shares. The Company shall take all actions reasonably
necessary to carry out the intent and accomplish the purposes of the immediately preceding sentence, including, without limitation,
delivering all such legal opinions, consents, certificates, resolutions and instructions to the Transfer Agent, and any successor
transfer agent of the Company, as may be reasonably requested from time to time by the Investor or necessary or desirable to carry
out the intent and accomplish the purposes of the immediately preceding sentence. On the Commencement Date, the Company shall issue
to the Transfer Agent, and any subsequent transfer agent, (i) irrevocable instructions in the form acceptable to the Transfer Agent
(the “Commencement Irrevocable Transfer Agent Instructions”) and (ii) the notice of effectiveness of the
Registration Statement in a form acceptable to the Transfer Agent (the “Notice of Effectiveness of Registration
Statement”), in each case to issue the Purchase Shares in accordance with the terms of this Agreement and the Registration
Rights Agreement. All Purchase Shares to be issued from and after the Commencement Date to the Investor pursuant to this Agreement
shall be issued only as DWAC Shares. The Company represents and warrants to the Investor that, while this Agreement is effective, no
instruction other than the Commencement Irrevocable Transfer Agent Instructions and the Notice of Effectiveness of Registration
Statement referred to in this Section 6(b) will be given by the Company to the Transfer Agent with respect to the Commitment Shares,
or any of the Purchase Shares covered by the Registration Statement from and after Commencement, and the Commitment Shares and the
Purchase Shares covered by the Registration Statement shall otherwise be freely transferable on the books and records of the
Company. The Company agrees that if the Company fails to fully comply with the provisions of this Section 6(b) within five (5)
Business Days of the Investor providing the deliveries referred to above, the Company shall, at the Investor’s written
instruction, purchase such Ordinary Shares containing the Restrictive Legend from the Investor at the greater of the (i) purchase
price paid for such Ordinary Shares and (ii) the Closing Sale Price of the Ordinary Shares on the date of the Investor’s
written instruction.

 

    23

     

    

 

		7.	CONDITIONS TO THE COMPANY’S RIGHT TO COMMENCE SALES OF PURCHASE SHARES.

 

The right of the Company hereunder
to commence sales of the Purchase Shares on the Commencement Date is subject to the satisfaction or, where legally permissible, the waiver
of each of the following conditions:

 

(a)               
The Investor shall have executed each of the Transaction Documents and delivered the same to the Company;

 

(b)               
The Registration Statement covering the resale of all of such Purchase Shares as required pursuant to the Registration Rights Agreement
shall have been declared effective under the Securities Act by the SEC and no stop order with respect to the Registration Statement shall
be pending or, to the Company’s knowledge, threatened by the SEC;

 

(c)               
The Ordinary Shares shall be listed on the Principal Market, and all Securities to be issued by the Company to the Investor under
the Transaction Documents shall have been approved for listing on the Principal Market in accordance with the applicable rules and regulations
of the Principal Market, subject only to official notice of issuance; and

 

(d)               
The representations and warranties of the Investor shall be true and correct in all material respects (except to the extent that
any of such representations and warranties is already qualified as to materiality in Section 3 above, in which case, such representations
and warranties shall be true and correct without further qualification) as of the Execution Date and as of the Commencement Date as though
made at that time.

 

		8.	CONDITIONS TO THE INVESTOR’S OBLIGATION TO PURCHASE ORDINARY SHARES.

 

The obligation of the Investor
to buy Purchase Shares (other than the Commitment Shares) under this Agreement is subject to the satisfaction or, where legally permissible,
the waiver of each of the following conditions on or prior to the Commencement Date and, once such conditions have been initially satisfied,
there shall not be any ongoing obligation to satisfy such conditions after the Commencement has occurred:

 

(a)               
The Company shall have executed each of the Transaction Documents and delivered the same to the Investor;

 

(b)               
Investor shall have received (i) an opinion letter of Wilmer Cutler Pickering Hale and Dorr, LLP, the Company’s U.S. legal
counsel, dated as of the Commencement Date, in the form set forth in Exhibit C attached hereto; and (ii) an opinion letter
of A&L Goodbody, the Company’s Irish legal counsel, dated as of the Commencement Date, in the form set forth in Exhibit
D attached hereto;

 

    24

     

    

 

(c)               
 The representations and warranties of the Company contained in this Agreement shall be true and correct in all material respects
(except to the extent that any of such representations and warranties is already qualified as to materiality, in which case, such representations
and warranties shall be true and correct in all material respects without further qualification) as of the date when made and as of the
Commencement Date as though made at that time (except for representations and warranties that speak as of a specific date, which shall
be true and correct in all material respects as of such date) and the Company shall have performed, satisfied and complied with the covenants,
agreements and conditions required by the Transaction Documents to be performed, satisfied or complied with by the Company at or prior
to the Commencement Date. The Investor shall have received a certificate, executed by the Chief Executive Officer or the Chief Financial
Officer of the Company, dated as of the Commencement Date, to the foregoing effect in the form attached hereto as Exhibit A;

 

(d)               
The Board of Directors of the Company shall have adopted the Signing Resolutions, which shall be in full force and effect without
any amendment or supplement thereto as of the Commencement Date;

 

(e)               
The Commencement Irrevocable Transfer Agent Instructions and the Notice of Effectiveness of Registration Statement each shall have
been delivered to and acknowledged in writing by the Company and the Company’s Transfer Agent (or any successor transfer agent);

 

(f)                
The Company shall have delivered to the Investor a certificate evidencing the valid existence and good standing of the Company
in the Republic of Ireland (or such equivalent concept to the extent it exists under the law of such jurisdiction) as of a date within
ten (10) Business Days of the Commencement Date;

 

(g)               
The Company shall have delivered to the Investor a copy of the memorandum and articles of association certified by the Secretary
of the Company of a date within ten (10) Business Days of the Commencement Date;

 

(h)               
The Company shall have delivered to the Investor a secretary’s certificate executed by the Secretary of the Company, dated
as of the Commencement Date, in the form attached hereto as Exhibit B;

 

(i)                
The Registration Statement covering the resale of the Securities in accordance with the Registration Rights Agreement shall have
been declared effective under the Securities Act by the SEC and no stop order with respect to the Registration Statement shall be pending
or, to the Company’s knowledge, threatened by the SEC. The Company shall have prepared and filed with the SEC, not later than two
(2) Business Days after the effective date of the Registration Statement, a final prospectus (the preliminary form of which shall be included
in the Registration Statement) and shall have delivered to the Investor a true and complete copy thereof. When filed, such prospectus
shall be current and available for the resale by the Investor of all of the Securities covered thereby. The Current Report shall have
been filed with the SEC, as required pursuant to Section 5(a). All reports, schedules, registrations, forms, statements, information
and other documents required to have been filed by the Company with the SEC at or prior to the Commencement Date pursuant to the reporting
requirements of the Exchange Act shall have been filed with the SEC within the applicable time periods prescribed for such filings under
the Exchange Act;

 

(j)                
No Event of Default (as defined below) has occurred, and no event which, after notice and/or lapse of time, would reasonably be
expected to become an Event of Default has occurred;

 

    25

     

    

 

(k)               
 No statute, regulation, order, decree, writ, ruling or injunction shall have been enacted, entered, promulgated, threatened or
endorsed by any federal, state, local or foreign court or governmental authority of competent jurisdiction which prohibits the consummation
of or which would materially modify or delay any of the transactions contemplated by the Transaction Documents;

 

(l)                
No action, suit or proceeding before any federal, state, local or foreign arbitrator or any court or governmental authority of
competent jurisdiction shall have been commenced or threatened, and no inquiry or investigation by any federal, state, local or foreign
governmental authority of competent jurisdiction shall have been commenced or threatened, against the Company, or any of the officers,
directors or affiliates of the Company, seeking to restrain, prevent or change the transactions contemplated by the Transaction Documents,
or seeking material damages in connection with such transactions; and

 

(m)             
All federal, state, foreign and local governmental laws, rules and regulations applicable to the transactions contemplated by the
Transaction Documents and necessary for the execution, delivery and performance of the Transaction Documents and the consummation of the
transactions contemplated thereby in accordance with the terms thereof shall have been complied with, and all consents, Authorizations
and orders of, and all filings and registrations with, all federal, state and local courts or governmental agencies and all federal, state
and local regulatory or self-regulatory agencies necessary for the execution, delivery and performance of the Transaction Documents and
the consummation of the transactions contemplated thereby in accordance with the terms thereof shall have been obtained or made, including,
without limitation, in each case those required under the Securities Act, the Exchange Act, Irish law, applicable state securities or
 “Blue Sky” laws or applicable rules and regulations of the Principal Market, or otherwise required by the SEC, the Principal
Market or any foreign or state securities regulators.

 

		9.	INDEMNIFICATION.

 

In consideration of the
Investor’s execution and delivery of the Transaction Documents and acquiring the Securities hereunder and in addition to all
of the Company’s other obligations under the Transaction Documents, the Company shall defend, protect, indemnify and hold
harmless the Investor and all of its affiliates, officers, directors, members, managers, employees and direct or indirect investors
and any of the foregoing Person’s agents or other representatives (including, without limitation, those retained in connection
with the transactions contemplated by this Agreement) (collectively, the “Indemnitees”) from and against any and
all actions, causes of action, suits, claims, losses, costs, penalties, fees, liabilities and damages, and expenses in connection
therewith (irrespective of whether any such Indemnitee is a party to the action for which indemnification hereunder is sought), and
including reasonable attorneys' fees and disbursements (the “Indemnified Liabilities”), incurred by any
Indemnitee as a result of, or arising out of: (a) any misrepresentation or breach of any representation or warranty made by the
Company in the Transaction Documents or any other certificate, instrument or document contemplated hereby or thereby, (b) any breach
of any covenant, agreement or obligation of the Company contained in the Transaction Documents or any other certificate, instrument
or document contemplated hereby or thereby or (c) any cause of action, suit or claim brought or made against such Indemnitee and
arising out of or resulting from the execution, delivery, performance or enforcement of the Transaction Documents or any other
certificate, instrument or document contemplated hereby or thereby other than in the case of clause (c) with respect to Indemnified
Liabilities which directly and primarily result from the fraud, gross negligence or willful misconduct of an Indemnitee. The
indemnity in this Section 9 shall not apply to amounts paid in settlement of any claim if such settlement is effected without
the prior written consent of the Company, which consent shall not be unreasonably withheld, conditioned or delayed. To the extent
that the foregoing undertaking by the Company may be unenforceable for any reason, the Company shall make the maximum contribution
to the payment and satisfaction of each of the Indemnified Liabilities which is permissible under applicable law, provided that no
seller of Securities guilty of fraudulent misrepresentation (within the meaning of Section 11(f) of the Securities Act) shall be
entitled to contribution from any seller of Securities who was not guilty of fraudulent misrepresentation. Payment under this
indemnification shall be made within thirty (30) days from the date the Indemnitee makes written request for it and provides
reasonable supporting documentation with respect to the Indemnified Liabilities for which payment is sought. The Indemnitee shall
undertake to repay any amount paid to it hereunder if it is ultimately determined, by a final and non-appealable order of a court of
competent jurisdiction, that the Indemnitee is not entitled to be indemnified against such Indemnified Liabilities by the Company
pursuant to this Agreement. If any action shall be brought against any Indemnitee in respect of which indemnity may be sought
pursuant to this Agreement, such Indemnitee shall promptly notify the Company in writing, and the Company shall have the right to
assume the defense thereof with counsel of its own choosing reasonably acceptable to the Indemnitee. Any Indemnitee shall have the
right to employ separate counsel in any such action and participate in the defense thereof, but the fees and expenses of such
counsel shall be at the expense of such Indemnitee, except to the extent that (i) the employment thereof has been specifically
authorized by the Company in writing, (ii) the Company has failed after a reasonable period of time to assume such defense and
to employ counsel or (iii) in such action there is, in the reasonable opinion of such separate counsel, a material conflict on
any material issue between the position of the Company and the position of such Indemnitee, in which case the Company shall be
responsible for the reasonable fees and expenses of no more than one such separate counsel.

 

    26

     

    

 

		10.	EVENTS OF DEFAULT.

 

An “Event of Default”
shall be deemed to have occurred at any time as any of the following events occurs:

 

(a)               
the effectiveness of the Registration Statement registering the Securities lapses for any reason (including, without limitation,
the issuance of a stop order or similar order), the Registration Statement or any prospectus thereunder is unavailable for the sale by
the Company to the Investor (or the resale by the Investor) of any or all of the Securities to be issued to the Investor under the Transaction
Documents, and any such lapse or unavailability continues for a period of ten (10) consecutive Business Days or for more than an aggregate
of thirty (30) Business Days in any 365-day period, but excluding a lapse or unavailability where (i) the Company terminates the Registration
Statement after the Investor has confirmed in writing that all of the Securities covered thereby have been resold or (ii) the Company
supersedes the Registration Statement with a new registration statement, including (without limitation) when the Registration Statement
is effectively replaced with a new registration statement covering Securities (provided in the case of this clause (ii) that all of the
Securities covered by the superseded (or terminated) registration statement that have not theretofore been resold to the Investor are
included in the superseding (or new) registration statement);

 

(b)               
the suspension of the Ordinary Shares from trading on the Principal Market for a period of one (1) Business Day, provided that
the Company may not direct the Investor to purchase any Ordinary Shares during any such suspension;

 

(c)               
the delisting of the Ordinary Shares from the Nasdaq Global Select Market unless the Ordinary Shares are immediately thereafter
trading on the Nasdaq Capital Market, the Nasdaq Global Market, the New York Stock Exchange, the NYSE Arca, the NYSE American, the OTC
Bulletin Board, or the OTCQB or the OTCQX operated by the OTC Markets Group, Inc. (or any nationally recognized successor to any of the
foregoing);

 

    27

     

    

 

(d)               
 the Company breaches any representation, warranty, covenant or other term or condition under any Transaction Document if such
breach would reasonably be expected to have a Material Adverse Effect and except, in the case of a breach of a covenant which is reasonably
curable, only if such breach continues for a period of at least five (5) Business Days;

 

(e)               
if any Person commences a proceeding against the Company pursuant to or within the meaning of any Bankruptcy Law;

 

(f)                
if the Company is at any time insolvent, or, pursuant to or within the meaning of any Bankruptcy Law, (i) commences a voluntary
case, (ii) consents to the entry of an order for relief against it in an involuntary case, (iii) consents to the appointment of a receiver,
trustee, assignee, liquidator or similar official under any Bankruptcy Law (a “Custodian”) of it or for all or substantially
all of its property, or (iv) makes a general assignment for the benefit of its creditors or is generally unable to pay its debts as the
same become due;

 

(g)               
a court of competent jurisdiction enters an order or decree under any Bankruptcy Law that (i) is for relief against the Company
in an involuntary case, (ii) appoints a Custodian of the Company or for all or substantially all of its property, or (iii) orders the
liquidation of the Company;

 

(h)               
if at any time the Company is not eligible to transfer its Ordinary Shares electronically as DWAC Shares; or

 

(i)                
if at any time after the Commencement Date, the Exchange Cap is reached (to the extent the Exchange Cap is applicable pursuant
to Section 2(e) hereof) and the Company’s shareholders have not approved the transactions contemplated by this Agreement
in accordance with the applicable rules and regulations of the Principal Market.

 

In addition to any other rights
and remedies under applicable law and this Agreement, so long as any event constituting an Event of Default has occurred and is continuing,
or if any event which, after notice and/or lapse of time would become an Event of Default has occurred and is continuing, the Company
shall not deliver to the Investor any Regular Purchase Notice or Accelerated Purchase Notice, and the Investor shall not purchase any
Ordinary Shares under this Agreement. Notwithstanding the foregoing, the foregoing sentence shall not be deemed to apply to any notice
from Nasdaq previously received or received in the future regarding the Company’s failure to comply with the continuing listing
standards of the Nasdaq Global Market, and to the fact of each such failure, unless all compliance and appeal periods for such failure
have lapsed or expired.

 

 

		11.	TERMINATION

 

This Agreement may be terminated
only as follows:

 

(a)               
If pursuant to or within the meaning of any Bankruptcy Law, the Company commences a voluntary case or any Person commences a proceeding
against the Company, a Custodian is appointed for the Company or for all or substantially all of its property, or the Company makes a
general assignment for the benefit of its creditors (any of which would be an Event of Default as described in Sections 10(e),
10(f) and 10(g) hereof), this Agreement shall automatically terminate without any liability or payment to the Company (except
as set forth below) without further action or notice by any Person.

 

    28

     

    

 

(b)                In
the event that the Commencement shall not have occurred on or before December 31, 2021, due to the failure to satisfy the conditions
set forth in Sections 7 and 8 above with respect to the Commencement, either the Company or the Investor shall have
the option to terminate this Agreement at the close of business on such date or thereafter without liability of any party to any
other party (except as set forth below); provided, however, that the right to terminate this Agreement under this Section
11(b) shall not be available to any party if such party is then in breach of any covenant or agreement contained in this
Agreement or any representation or warranty of such party contained in this Agreement fails to be true and correct such that the
conditions set forth in Section 7(d) or Section 8(c), as applicable, could not then be satisfied.

 

(c)               
At any time after the Commencement Date, the Company shall have the option to terminate this Agreement for any reason or for no
reason by delivering notice (a “Company Termination Notice”) to the Investor electing to terminate this Agreement without
any liability whatsoever of any party to any other party under this Agreement (except as set forth below). The Company Termination Notice
shall be effective one (1) Business Day after it has been received by the Investor.

 

(d)               
This Agreement shall automatically terminate on the date that the Company allots and issues and the Investor purchases the full
Available Amount as provided herein, without any action or notice on the part of any party and without any liability whatsoever of any
party to any other party under this Agreement (except as set forth below).

 

(e)               
If, for any reason or for no reason, the full Available Amount has not been purchased in accordance with Section 2 of this
Agreement by the Maturity Date, this Agreement shall automatically terminate on the Maturity Date, without any action or notice on the
part of any party and without any liability whatsoever of any party to any other party under this Agreement (except as set forth below).

 

Except as set forth in Sections
11(a) (in respect of an Event of Default under Sections 10(e), 10(f) and 10(g), 11(d) and 11(e)),
any termination of this Agreement pursuant to this Section 11 shall be effected by written notice from the Company to the Investor,
or the Investor to the Company, as the case may be, setting forth the basis for the termination hereof. The representations and warranties
of the Company and the Investor contained in Sections 3 and 4 hereof, the indemnification provisions set forth in Section
9 hereof and the agreements and covenants set forth in Sections 5, 6, 10, 11 and 12 shall survive
the Commencement and any termination of this Agreement. No termination of this Agreement shall (i) affect the Company’s or the Investor’s
rights or obligations under (A) this Agreement with respect to any pending Regular Purchases, Accelerated Purchases, and Additional Accelerated
Purchases and the Company and the Investor shall complete their respective obligations with respect to any pending Regular Purchases,
Accelerated Purchases and Additional Accelerated Purchases under this Agreement and (B) the Registration Rights Agreement, which shall
survive any such termination in accordance with its terms, or (ii) be deemed to release the Company or the Investor from any liability
for intentional misrepresentation or willful breach of any of the Transaction Documents.

 

		12.	MISCELLANEOUS.

 

(a)                Governing
Law; Jurisdiction; Jury Trial. The corporate laws of the Republic of Ireland shall govern all issues concerning the relative
rights of the Company and its shareholders. All other questions concerning the construction, validity, enforcement and
interpretation of this Agreement and the other Transaction Documents shall be governed by the internal laws of the State of New
York, without giving effect to any choice of law or conflict of law provision or rule (whether of the State of Illinois or any other
jurisdictions) that would cause the application of the laws of any jurisdictions other than the State of New York. Each party hereby
irrevocably submits to the exclusive jurisdiction of and venue in the U.S. District Court for the Southern District of New York or,
if that court does not have subject matter jurisdiction, in any state court located in the City and County of New York, for the
adjudication of any dispute hereunder or under the other Transaction Documents or in connection herewith or therewith, or with any
transaction contemplated hereby or discussed herein, and hereby irrevocably waives, and agrees not to assert in any suit, action or
proceeding, any claim that it is not personally subject to the jurisdiction of any such court, that such suit, action or proceeding
is brought in an inconvenient forum or that the venue of such suit, action or proceeding is improper. 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 to such party at the address for such notices to it under this Agreement 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 manner permitted by law. EACH PARTY HEREBY IRREVOCABLY WAIVES ANY RIGHT IT MAY HAVE, AND AGREES NOT
TO REQUEST, A JURY TRIAL FOR THE ADJUDICATION OF ANY DISPUTE HEREUNDER OR IN CONNECTION HEREWITH OR ARISING OUT OF THIS
AGREEMENT OR ANY TRANSACTION CONTEMPLATED HEREBY.

 

    29

     

    

 

(b)               
Counterparts. This Agreement may be executed in two or more identical counterparts, all of which shall be considered one
and the same agreement and shall become effective when counterparts have been signed by each party and delivered to the other party; provided
that a facsimile signature or signature delivered by e-mail in a “.pdf” format data file shall be considered due execution
and shall be binding upon the signatory thereto with the same force and effect as if the signature were an original signature.

 

(c)               
Headings. The headings of this Agreement are for convenience of reference and shall not form part of, or affect the interpretation
of, this Agreement.

 

(d)               
Severability. If any provision of this Agreement shall be invalid or unenforceable in any jurisdiction, such invalidity
or unenforceability shall not affect the validity or enforceability of the remainder of this Agreement in that jurisdiction or the validity
or enforceability of any provision of this Agreement in any other jurisdiction.

 

(e)               
Entire Agreement. The Transaction Documents supersede all other prior oral or written agreements between the Investor, the
Company, their affiliates and Persons acting on their behalf with respect to the subject matter thereof, and this Agreement, the other
Transaction Documents and the instruments referenced herein contain the entire understanding of the parties with respect to the matters
covered herein and therein and, except as specifically set forth herein or therein, neither the Company nor the Investor makes any representation,
warranty, covenant or undertaking with respect to such matters. The Company acknowledges and agrees that it has not relied on, in any
manner whatsoever, any representations or statements, written or oral, other than as expressly set forth in the Transaction Documents.
The Investor acknowledges and agrees that it has not relied on, in any manner whatsoever, any representations or statements, written or
oral, other than as expressly set forth in the Transaction Documents.

 

(f)                
Notices. Any notices, consents or other communications required or permitted to be given under the terms of this Agreement
must be in writing and will be deemed to have been delivered: (i) upon receipt when delivered personally; (ii) upon receipt when sent
by facsimile or email (provided confirmation of transmission is mechanically or electronically generated and kept on file by the sending
party); or (iii) one Business Day after deposit with a nationally recognized overnight delivery service, in each case properly addressed
to the party to receive the same. The addresses for such communications shall be:

 

    30

     

    

 

	If to the Company:	 
	 	 
	Nabriva Therapeutics plc
	25-28 North Wall Quay
	IFSC, Dublin 1, Ireland
	Telephone: 	(610) 816-6640
	E-mail: 	[****]
	Attention:	Daniel Dolan, Chief Financial Officer
	 	 
	With a copy to (which shall not constitute notice or service of process):
	 	 
	Wilmer Cutler Pickering Hale and Dorr LLP
	7 World Trade Center
	250 Greenwich Street
	New York, NY 10007
	Facsimile: 	(212) 230-8888
	E-mail: 	brian.johnson@wilmerhale.com
	Attention:	Brian A. Johnson
	 	 
	 	 
	If to the Investor:	 
	 	 
	Lincoln Park Capital Fund, LLC
	440 North Wells, Suite 410
	Chicago, IL 60654
	Telephone:	[****]
	Facsimile:	312.822.9301
	E-mail:	[****]
	Attention:	Josh Scheinfeld/Jonathan Cope
	 	 
	With a copy to (which shall not constitute notice or service of process):
	 	 
	K&L Gates, LLP
	200 S. Biscayne Blvd., Ste. 3900
	Miami, Florida 33131
	Telephone:	305.539.3306
	Facsimile: 	305.358.7095
	E-mail: 	clayton.parker@klgates.com
	Attention:	Clayton E. Parker, Esq.

 

 

or at such other address,
e-mail and/or facsimile number and/or to the attention of such other Person as the recipient party has specified by written notice given
to each other party three (3) Business Days prior to the effectiveness of such change. Written confirmation of receipt (A) given by the
recipient of such notice, consent or other communication, (B) mechanically or electronically generated by the sender’s facsimile
machine or e-mail account containing the time, date, and recipient facsimile number or e-mail address, as applicable, and an image of
the first page of such transmission or (C) provided by a nationally recognized overnight delivery service, shall be rebuttable evidence
of personal service, receipt by facsimile or email or receipt from a nationally recognized overnight delivery service in accordance with
clause (i), (ii) or (iii) above, respectively.

 

(g)                Successors
and Assigns. This Agreement shall be binding upon and inure to the benefit of the parties and their respective successors and
assigns. The Company shall not assign this Agreement or any rights or obligations hereunder without the prior written consent of the
Investor, including by merger or consolidation. The Investor may not assign its rights or obligations under this Agreement.

 

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(h)               
No Third Party Beneficiaries. This Agreement is intended for the benefit of the parties hereto and their respective permitted
successors and assigns, and, except as set forth in Section 9, is not for the benefit of, nor may any provision hereof be enforced
by, any other Person.

 

(i)                
Further Assurances. Each party shall do and perform, or cause to be done and performed, all such further acts and things,
and shall execute and deliver all such other agreements, certificates, instruments and documents, as the other party may reasonably request
in order to consummate and make effective, as soon as reasonably possible, the Commencement, and to carry out the intent and accomplish
the purposes of this Agreement and the consummation of the transactions contemplated hereby.

 

(j)                
No Strict Construction. The language used in this Agreement will be deemed to be the language chosen by the parties to express
their mutual intent, and no rules of strict construction will be applied against any party.

 

(k)               
Remedies, Other Obligations, Breaches and Injunctive Relief. The Investor’s remedies provided in this
Agreement, including, without limitation, the Investor’s remedies provided in Section 9, shall be cumulative and in addition
to all other remedies available to the Investor under this Agreement, at law or in equity (including a decree of specific performance
and/or other injunctive relief), no remedy of the Investor contained herein shall be deemed a waiver of compliance with the provisions
giving rise to such remedy and nothing herein shall limit the Investor’s right to pursue actual damages for any failure by the Company
to comply with the terms of this Agreement. The parties acknowledge that a breach by any party of its obligations hereunder will cause
irreparable harm to the non-breaching party and that the remedy at law for any such breach may be inadequate. The parties therefore agree
that, in the event of any such breach or threatened breach, the non-breaching party shall be entitled, in addition to all other available
remedies, to an injunction restraining any breach, without the necessity of showing economic loss and without any bond or other security
being required.

 

(l)                
Enforcement Costs. If: (i) this Agreement is placed by the Investor or the Company in the hands of an attorney for enforcement
or is enforced by the Investor or the Company through any legal proceeding; (ii) an attorney is retained to represent the Investor in
any bankruptcy, reorganization, receivership or other proceedings affecting creditors' rights and involving a claim under this Agreement;
or (iii) an attorney is retained to represent the Investor or the Company in any other proceedings whatsoever in connection with this
Agreement, then the party against which redress is sought under this Section 12(l) shall pay, all reasonable costs and expenses including
attorneys' fees incurred in connection therewith to the party incurring such costs and expenses, as incurred, in addition to all other
amounts due hereunder.

 

(m)             
Amendment and Waiver; Failure or Indulgence Not Waiver. No provision of this Agreement may be amended other than by a written
instrument signed by both parties hereto and no provision of this Agreement may be waived other than in a written instrument signed by
the party against whom enforcement of such waiver is sought. No failure or delay in the exercise of any power, right or privilege hereunder
shall operate as a waiver thereof, nor shall any single or partial exercise of any such power, right or privilege preclude other or further
exercise thereof or of any other right, power or privilege.

 

 

** Signature Page Follows **

 

    32

     

    

 

IN WITNESS WHEREOF,
the Investor and the Company have caused this Purchase Agreement to be duly executed as of the date first written above.

 

	 	THE COMPANY:
	 	 	 
	 	NABRIVA THERAPEUTICS PLC
	 	 	 
	 	 	 
	 	By:	/s/ Daniel Dolan
	 	Name: Daniel Dolan
	 	Title: Chief Financial Officer
	 	 	 
	 	 	 
	 	INVESTOR:
	 	 	 
	 	LINCOLN PARK CAPITAL FUND, LLC
	 	BY: LINCOLN PARK CAPITAL, LLC
	 	BY: ROCKLEDGE CAPITAL CORPORATION
	 	 	 
	 	 	 
	 	By:	/s/ Josh Scheinfeld
	 	Name: Josh Scheinfeld
	 	Title: President

 

    33

     

    

 

	SCHEDULES
	 	 
	Schedule 4(c)	Capitalization
	 	 
	EXHIBITS
	 	 
	Exhibit A	Form of Officer’s Certificate
	Exhibit B	Form of Secretary’s Certificate
	Exhibit C	Form of Opinion of the Company’s U.S. Counsel
	Exhibit D	Form of Opinion of the Company’s Irish Counsel

 

DISCLOSURE SCHEDULES

 

 

Schedule 4(c) – Capitalization

 

As of the Execution Date, the Company’s authorized share capital
consists of 300,000,000 Ordinary Shares, nominal value $0.01 per share, and 100,000,000 preferred shares, nominal value $0.01 per share
and 25,000 Euro deferred shares nominal value €1.00 per share.

 

     

     

    

 

EXHIBIT A

 

 

FORM OF OFFICER’S CERTIFICATE

 

This Officer’s Certificate
(“Certificate”) is being delivered pursuant to Section 8(c) of that certain Purchase Agreement dated as of September
24, 2021, (“Purchase Agreement”), by and between NABRIVA THERAPEUTICS PLC, an Irish incorporated public limited
company (the “Company”), and LINCOLN PARK CAPITAL FUND, LLC (the “Investor”). Terms used
herein and not otherwise defined shall have the meanings ascribed to them in the Purchase Agreement.

 

The undersigned, Daniel Dolan,
Chief Financial Officer of the Company, hereby certifies, on behalf of the Company and not in his individual capacity, as follows:

 

1.               I am the Chief Financial Officer of the Company and make the statements contained in this Certificate;

 

2.               The
representations and warranties of the Company contained in the Purchase Agreement are true and correct in all material respects (except
to the extent that any of such representations and warranties is already qualified as to materiality, in which case, such representations
and warranties are true and correct without further qualification) as of the date when made and as of the Commencement Date as though
made at that time (except for representations and warranties that speak as of a specific date, in which case such representations and
warranties are true and correct in all material respects as of such date);

 

3.               The
Company has performed, satisfied and complied in all material respects with covenants, agreements and conditions required by the Transaction
Documents to be performed, satisfied or complied with by the Company at or prior to the Commencement Date, to the extent not otherwise
waived.

 

4.               The
Company has not taken any steps, and does not currently expect to take any steps, to seek protection pursuant to any Bankruptcy Law nor
does the Company or any of its Subsidiaries currently have any knowledge or reason to believe that its creditors intend to initiate involuntary
bankruptcy or insolvency proceedings. The Company is currently financially solvent and is generally able to pay its debts as they become
due.

 

IN WITNESS WHEREOF, I have
hereunder signed my name as of the date first written above.

 

	 	 
	 	Name:
	 	Title:

 

     

     

    

 

EXHIBIT B

 

FORM OF SECRETARY’S CERTIFICATE

 

This Secretary’s Certificate
(“Certificate”) is being delivered pursuant to Section 8(h) of that certain Purchase Agreement dated as of September
24, 2021 (“Purchase Agreement”), by and between NABRIVA THERAPEUTICS PLC, an Irish incorporated public limited
company (the “Company”) and LINCOLN PARK CAPITAL FUND, LLC (the “Investor”), pursuant to
which the Company may allot and issue to the Investor up to Twenty-Three Million Dollars ($23,000,000) of the Company's Ordinary Shares,
$0.01 nominal value per share (the “Ordinary Shares”). Terms used herein and not otherwise defined shall have the meanings
ascribed to them in the Purchase Agreement.

 

The undersigned, J. Christopher
Naftzger, Secretary of the Company, hereby certifies, on behalf of the Company and not in his individual capacity, as follows:

 

1.                  
I am the Secretary of the Company and make the statements contained in this Secretary’s Certificate.

 

2.                  
Attached hereto as Exhibit A are true, correct and complete copies of the Company’s Memorandum and Articles of Association,
as amended through the date hereof, and no action has been taken by the Company, its directors, officers or shareholders, in contemplation
of the filing of any further amendment relating to or affecting such document.

 

3.                  
Attached hereto as Exhibit B are true, correct and complete copies of the resolutions duly adopted by the Board of Directors
of the Company (a) at a meeting on _____________, at which a quorum was present and acting throughout or (b) by an action by unanimous
written consent executed by all directors in accordance with Irish company law. Such resolutions have not been amended, modified or rescinded
and remain in full force and effect and such resolutions are the only resolutions adopted by the Company’s Board of Directors, or
any committee thereof, or the shareholders of the Company relating to or affecting (i) the entering into and performance of the Purchase
Agreement, or the allotment, issuance, offering and sale of the Securities and (ii) the performance of the Company of its obligation under
the Transaction Documents as contemplated therein.

 

4.                  
As of the date hereof, the authorized, issued and reserved share capital of the Company is as set forth on Exhibit D hereto.

 

IN WITNESS WHEREOF,
I have hereunder signed my name as of the date first written above.

 

	 	 
	 	Secretary

 

The undersigned as ___________ of NABRIVA THERAPEUTICS
PLC,  an Irish incorporated public limited company, hereby certifies that ____________ is the duly elected, appointed, qualified
and acting Secretary of NABRIVA THERAPEUTICS PLC, and that the signature appearing above is his genuine signature.

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