Execution Version


 


REGISTRATION RIGHTS AGREEMENT


 


REGISTRATION
RIGHTS AGREEMENT (this "Agreement"), dated as of March 7, 2014, by and between AMARANTUS BIOSCIENCE HOLDINGS,
INC., a Nevada corporation (the "Company"), and LINCOLN PARK CAPITAL FUND, LLC, an Illinois limited
liability company (together with it 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 agreed,
upon the terms and subject to the conditions of the Purchase Agreement, to sell to the Buyer up to Twenty Million Dollars ($20,000,000)
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, or any similar successor statute
(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 a 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 (i) all of the Initial Commitment Shares, (ii) all of the Additional Commitment Shares, (iii) all of
the Initial Purchase Shares and (iv) all of the Purchase Shares (other than the Initial 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 shares of capital stock issued or issuable with respect to the Initial Commitment Shares, the Additional
Commitment Shares, the Initial Purchase Shares, the Purchase Shares (other than the Initial Purchase Shares), or the Purchase
Agreement as a result of any stock split, stock 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 sale of the Registrable Securities.


 


2.REGISTRATION.


 


a.Mandatory Registration.
The Company shall, within ten (10) calendar days after the date the Company files with the SEC its annual report on Form 10-K for
the fiscal year ended December 31, 2013, file with the SEC an initial Registration Statement covering 90,000,000 of the Registrable
Securities 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). 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 such comments. The Investor shall furnish all information reasonably requested by the Company
for inclusion therein. The Company shall use its best efforts to have the Registration Statement and any amendment declared effective
by the SEC at the earliest possible date. 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 date on which the Investor shall have resold all the Registrable Securities covered
thereby and no Available Amount remains under 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 sales of
the Registrable Securities 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 such
comments. The Investor shall use its reasonable best efforts to comment upon such prospectus 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 amend 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 therefor arises,
subject to any limits that may be imposed by the SEC pursuant to Rule 415 under the Securities Act. The Company shall use it reasonable
best efforts to cause such amendment and/or New Registration Statement to become effective as soon as practicable following the
filing thereof.


 


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, 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
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).


 






    	2



    	 



    

 


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 reasonable best 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 seller or sellers thereof 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 reasonable best 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.


 






    	3



    	 



    

 


d.The Company shall
use reasonable best 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 in writing 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, 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 and 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 reasonable best 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 at the earliest possible moment 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.


 


h.The Company shall
cooperate with the Investor to facilitate the timely preparation and delivery of certificates (not bearing any restrictive legend)
representing the Registrable Securities to be offered pursuant to any registration statement and enable such certificates to be
in such denominations or amounts as the Investor may reasonably request and registered in such names as the Investor may request.


 






    	4



    	 



    

 


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


 


j.If reasonably requested
by the Investor, the Company shall (i) immediately incorporate in a prospectus supplement or post-effective amendment such information
as the Investor believes should 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 upon notification 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 reasonable best 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 ordered effective by the SEC, the Company
shall deliver, and shall cause 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 the form
attached hereto as Exhibit A. Thereafter, if requested by the Buyer at any time, the Company shall require its counsel to
deliver to the Buyer 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) and whether or not the registration statement is current
and available to the Buyer for sale of all of the Registrable Securities.


 


m.The Company shall
take all other reasonable actions necessary to expedite and facilitate disposition by the Investor of 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 hereunder. The Investor shall 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.


 


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 hereunder.


 


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 the supplemented
or amended prospectus contemplated by Section 3(f) or the first sentence of 3(e). Notwithstanding anything to the contrary, the
Company shall cause its transfer agent to promptly deliver shares of Common Stock 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 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



    	 



    

 


5.EXPENSES OF
REGISTRATION.


 


All reasonable expenses,
other than sales or brokerage commissions, 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, shall be paid by the Company.


 


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, the directors, officers, partners, employees, agents, 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, attorneys' fees, amounts paid in settlement or expenses, joint
or several, (collectively, "Claims") 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 ("Blue Sky Filing"), 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
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,
if such 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 such person from whom the person asserting any such Claim purchased
the Registrable Securities that are the subject thereof (or to the benefit of any person controlling such 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. 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 Registrable Securities by the Investor pursuant
to Section 9.


 






    	6



    	 



    

 


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 B attached hereto and furnished to the Company by the Investor expressly for use in connection with
such registration statement; and, subject to Section 6(d), the Investor will reimburse any legal or other expenses reasonably incurred
by them 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; 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.


 


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 fully 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 fully apprised at all times 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.


 






    	7



    	 



    

 


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.


 


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 the 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.


 


8.REPORTS AND
DISCLOSURE UNDER THE SECURITIES ACTS.


 


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, 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;


 






    	8



    	 



    

 


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 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 Transfer Agent as may
be 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 equitable relief in the form of a preliminary or permanent injunctions,
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. The Investor may
not assign its rights under this Agreement without the written consent of the Company, other than to an affiliate of the Investor
controlled by Jonathan Cope or Josh Scheinfeld.


 


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 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 for such communications shall be:


 






    	9



    	 



    

 


If to the Company:


Amarantus BioScience Holdings,
Inc.


c/o Janssen Labs@QB3


953 Indiana Street


San Francisco, CA 94107


		Telephone:	(408) 737-2734



		Facsimile:	(408) 852-4427



		E-mail:	gerald@amarantus.com



		Attention:	Gerald Commissiong



 


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


Sichenzia Ross Friedman Ference
LLP


61 Broadway, 32nd Floor


New York, New York 10006


		Telephone:	(212) 930-9700



		Facsimile:	(212) 930-9725



		E-mail:	jfessler@srff.com



		Attention:	Jeff Fessler, Esq.



 


If to the Investor:


Lincoln Park Capital Fund, LLC


440 North Wells, Suite 410


Chicago, IL 60654


		Telephone:	312-822-9300



		Facsimile:	312-822-9301



		E-mail:	jscheinfeld@lpcfunds.com/jcope@lpcfunds.com



		Attention:	Josh Scheinfeld/Jonathan Cope



 


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


Greenberg
Traurig, LLP


The MetLife
Building


200 Park
Avenue


New York,
NY 10166


		Telephone:	(212) 801-9200



		Facsimile:	(212) 801-6400



		E-mail:	marsicoa@gtlaw.com



		Attention:	Anthony J. Marsico, Esq.



 


or at such other 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 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, 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 receipt from a nationally recognized overnight delivery service in accordance
with clause (i), (ii) or (iii) above, respectively.


 






    	10



    	 



    

 


c.The corporate laws
of the State of Nevada shall govern all issues concerning the relative rights of the Company and its stockholders. All other questions
concerning the construction, validity, enforcement and interpretation of this Agreement shall be governed by the internal laws
of the State of Illinois, 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 Illinois. Each party hereby irrevocably submits to the exclusive jurisdiction of the state and federal courts sitting the State
of Illinois, County of Cook, 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.


 


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, 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.


 






    	11



    	 



    

 


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



    	 



    

 


 


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:
	 	 	 
	 	AMARANTUS BIOSCIENCE HOLDINGS, INC.
	 	 	 
	 	By:  	/s/ Gerald Commissiong
	 	 	Name: Gerald Commissiong
	 	 	Title:  President and Chief Executive 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


  




    	13



    	 



    

 


EXHIBIT A


 


TO REGISTRATION RIGHTS AGREEMENT


 


FORM OF NOTICE OF EFFECTIVENESS


OF REGISTRATION STATEMENT


 


[Date]


 


	[TRANSFER AGENT]	 
	 	 
	 	 
	 	 
	 	 


 


Re: [__________]


 


Ladies and Gentlemen:


 


We are counsel to
AMARANTUS BIOSCIENCE HOLDINGS, INC., a Nevada corporation (the “Company”), and have represented the Company
in connection with that certain Purchase Agreement, dated as of March 7, 2014 (the “Purchase Agreement”), entered
into by and between the Company and Lincoln Park Capital Fund, LLC (the “Buyer”) pursuant to which the Company
has agreed to issue to the Buyer shares of the Company's Common Stock, par value $0.001 per share (the “Common Stock”),
in an amount up to Twenty Million Dollars ($20,000,000) (the “Purchase Shares”), in accordance with the terms
of the Purchase Agreement. In connection with the transactions contemplated by the Purchase Agreement, the Company has registered
with the U.S. Securities & Exchange Commission the following shares of Common Stock:


 


		(1)	4,000,000 shares of Common Stock that have been issued to the Buyer upon purchase from the Company
by the Buyer on the date of the Purchase Agreement (the “Initial Purchase Shares”).



 


		(2)	6,000,000 shares of Common Stock that have been issued to the Buyer as an initial commitment fee
on the date of the Purchase Agreement (the “Initial Commitment Shares”).



 


		(3)	76,500,000 shares of Common Stock to be issued to the Buyer upon purchase from the Company by the
Buyer from time to time (the “Purchase Shares”).



 


		(4)	3,500,000 shares of Common Stock to be issued to the Buyer upon purchase of Purchase Shares from
the Company from time to time as an additional commitment fee (the “Additional Commitment Shares”).



 


Pursuant to the Purchase Agreement, the
Company also has entered into a Registration Rights Agreement, dated as of March 7, 2014 with the Buyer (the “Registration
Rights Agreement”) pursuant to which the Company agreed, among other things, to register the Initial Purchase Shares,
the Purchase Shares, the Initial Commitment Shares and the Additional Commitment Shares under the Securities Act of 1933, as amended
(the “Securities Act”). In connection with the Company's obligations under the Purchase Agreement and the Registration
Rights Agreement, on [_____________], 2014, the Company filed a Registration Statement (File No. 333-[_________]) (the “Registration
Statement”) with the Securities and Exchange Commission (the “SEC”) relating to the resale of the
Initial Purchase Shares, the Purchase Shares, the Initial Commitment Shares and the Additional Commitment Shares.


 






    	 



    	 



    

 


In connection with
the foregoing, we advise you that a member of the SEC's staff has advised us by telephone that the SEC has entered an order declaring
the Registration Statement effective under the Securities Act at [_____] [A.M./P.M.] on [__________], 201[__] and we have no knowledge,
after telephonic inquiry of a member of the SEC's staff, that any stop order suspending its effectiveness has been issued or that
any proceedings for that purpose are pending before, or threatened by, the SEC and the Initial Purchase Shares, the Purchase Shares,
the Initial Commitment Shares and the Additional Commitment Shares are available for resale under the Securities Act pursuant to
the Registration Statement and may be issued without any restrictive legend.


 


	 	Very truly yours,
	 	[Company Counsel]
	 	 	 
	 	By:  	 


  


		cc:	Lincoln Park Capital Fund, LLC



 






    	 



    	 



    

 


EXHIBIT B


 


TO REGISTRATION RIGHTS AGREEMENT


 


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 10,000,000 shares of our common stock. 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 shares of common stock 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.