Document:

Form of Voting Agreement

 Exhibit 10.1 
 VOTING AGREEMENT 
 This VOTING
AGREEMENT (this “Agreement”) is made and entered into as of April 21, 2012 by and among Zeneca Inc. (“Parent”) and the undersigned stockholder (the
“Stockholder”) of Ardea BioSciences, Inc., a Delaware corporation (the “Company”). 
 RECITALS 
 WHEREAS, concurrently with
the execution of this Agreement, Parent, QAM Corp., a Delaware corporation and wholly owned subsidiary of Parent (“Merger Sub”), and the Company are entering into an Agreement and Plan of Merger (the “Merger
Agreement”), pursuant to which Merger Sub will be merged with and into the Company, and the Company will be the surviving corporation and continue as a wholly owned subsidiary of Parent (the “Merger”);

 WHEREAS, the Stockholder is the beneficial owner (as defined in Rule 13d-3 under the Securities
Exchange Act of 1934, as amended (the “Exchange Act”)) of such number of shares of Company Common Stock and options or warrants to purchase such number of shares of Company Common Stock as is indicated on the signature page
of this Agreement; and 
 WHEREAS, as a condition to its willingness to enter into the Merger Agreement,
Parent has required that the Stockholder, and in order to induce Parent to enter into the Merger Agreement, the Stockholder (solely in the Stockholder’s capacity as such) has agreed to, enter into this Agreement and vote all of the Subject
Shares (as defined below), to the extent such Subject Shares are entitled to be voted, as described herein. 

AGREEMENT 
 NOW, THEREFORE, in consideration of the mutual covenants and agreements contained in this Agreement and for other good and valuable consideration, the receipt and
adequacy of which are hereby acknowledged, the parties to this Agreement agree as follows: 
 1. Certain Definitions. All
capitalized terms that are used but not defined herein shall have the respective meanings ascribed to them in the Merger Agreement. For all purposes of and under this Agreement, the following terms shall have the following respective meanings:

 (a) “Expiration Date” shall mean the earliest to occur of such date and time as: (i) the
Merger Agreement shall have been terminated in accordance with its terms; (ii) the Effective Time; and (iii) at the option of the Stockholder, upon Parent’s receipt of written notice by the Stockholder following any amendment or
modification to the Merger Agreement that materially adversely affects the Stockholder (including but not limited to any reduction or change in the amount of or form of the Merger Consideration or any change in the conditions to the Merger).

 (b) “Subject Shares” shall mean: (i) all securities of the Company (including all shares
of Company Common Stock and all options, warrants and other rights to acquire shares of Company Common Stock) owned by the Stockholder as of the date hereof; and (ii) all additional securities of the Company (including all additional shares of
Company Common 

 
Stock and all additional options, warrants and other rights to acquire shares of Company Common Stock) of which the Stockholder acquires beneficial ownership during the period from the date of
this Agreement through the Expiration Date (including by way of purchase, exercise of options, warrants or other securities, the conversion or exchange of any securities, stock dividend or distribution, split-up, recapitalization, combination,
exchange of shares and the like). 
 (c) A Person shall be deemed to have effected a “Transfer”
of a Subject Share if such Person, directly or indirectly: (i) sells, pledges, encumbers, assigns, grants an option with respect to, transfers, tenders or otherwise disposes of (including by gift or any Constructive Disposition) such Subject
Share or any interest therein; or (ii) enters into an agreement or commitment providing for the sale, pledge, encumbrance, assignment, grant of an option with respect to, transfer, tender or other disposition (including by gift or Constructive
Disposition) of such Subject Share or any interest therein. As used herein, the term “Constructive Disposition” means, with respect to any Subject Share, a short sale with respect to such security, entering into or acquiring
an offsetting derivative contract with respect to such security, entering into or acquiring a futures or forward contract to deliver such security or entering into any other hedging or other derivative transaction that has the effect of materially
changing the economic benefits and risks of ownership of such Subject Share. 
 2. Transfer of Subject Shares.

 (a) Transfer Restrictions. The Stockholder shall not (i) cause or permit any Transfer of any of the Subject
Shares to be effected or (ii) enter into any contract, agreement, option, instrument or other arrangement or understanding with respect to the direct or indirect Transfer of any Subject Shares. The Stockholder shall not, and shall not permit
any Person under the Stockholder’s control or any of its or such Person’s respective Representatives to, seek or solicit any such Transfer or any such contract, agreement, option, instrument or other arrangement or understanding.

 (b) Transfer of Voting Rights. The Stockholder shall not deposit (or permit the deposit of) any Subject Shares into a
voting trust or grant any proxy, power of attorney, right of first offer or refusal or enter into any voting agreement or similar agreement with respect to any of the Subject Shares in contravention of the obligations of the Stockholder under this
Agreement. 
 (c) Exceptions. Nothing in this Section 2 shall prohibit a Transfer of Subject Shares by the
Stockholder: (i) if the Stockholder is an individual: (A) to any member of the Stockholder’s immediate family or to a trust for the benefit of the Stockholder or any member of the Stockholder’s immediate family; or (B) upon
the death of the Stockholder; or (ii) if the Stockholder is a partnership or limited liability company, to one or more partners or members of the Stockholder or to an affiliated corporation under common control with the Stockholder;
provided, however, that a Transfer referred to in this Section 2(c) shall be permitted only if the transferee agrees in writing, reasonably satisfactory in form and substance to Parent, to be bound by the terms of this Agreement.
Further, nothing in this Section 2 shall prohibit the Stockholder from holding any portion of the Subject Shares in a securities margin account, subject to the terms and conditions of such account. 

  
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 (d) Stop Transfer Order. The Stockholder hereby authorizes Parent to direct the
Company to impose stop orders to prevent the Transfer of any Subject Shares on the books of the Company in violation of this Agreement. 
 3. Agreement to Vote Subject Shares. 
 (a) At every meeting of the
stockholders of the Company however called (whether annual or special), and at every adjournment or postponement thereof, and on every action or approval by written consent of the stockholders of Company, the Stockholder (solely in the
Stockholder’s capacity as such) shall vote or deliver a written consent with respect to all of the Subject Shares to the fullest extent such Subject Shares are entitled to be voted (regardless of any Change in Company Board Recommendation):

 (i) in favor of the adoption of the Merger Agreement and, without limitation of the preceding language, the approval of any
proposal to adjourn or postpone any meeting of the stockholders of the Company to a later date if there are not sufficient votes for adoption of the Merger Agreement on the date on which such meeting is held to the extent Company stockholder
approval is required for such adjournment or postponement and such adjournment or postponement is in accordance with Section 4.3(b) of the Merger Agreement; 
 (ii) against approval of any proposal made in opposition to, or in competition with, the consummation of the Merger or any other transactions contemplated by the Merger Agreement; and 

(iii) against any of the following actions: (A) any Acquisition Transaction; and (B) any other action or agreement (except any
proposal to adjourn or postpone any meeting of the stockholders of the Company contemplated in clause (i) above) that is intended to or would reasonably be expected to impede, prevent, delay or adversely affect the Merger or any other
transactions contemplated by the Merger Agreement. 
 (b) At any meeting of the stockholders of the Company called, and
at every adjournment or postponement thereof, the Stockholder shall cause the Subject Shares, to the extent applicable, to be counted as present thereat for purposes of establishing a quorum. 

(c) The Stockholder shall not enter into any agreement or understanding with any Person to vote or give voting instructions in any
manner in violation of the terms of this Section 3 and further hereby agrees not to commit or agree to take any action in violation of this Section 3. 
 4. Agreement Not to Exercise Appraisal Rights. The Stockholder hereby irrevocably and unconditionally waives any and all rights that may arise with respect to the Merger or any of the transactions
contemplated by the Merger Agreement to demand appraisal of any Subject Shares (including, without limitation, under Section 262 of the DGCL) or any rights that the Stockholder may have to dissent from the Merger. 

5. Directors and Officers. Notwithstanding any provision of this Agreement to the contrary, nothing in this Agreement shall (or
shall require the Stockholder to attempt to) limit or 

  
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restrict the Stockholder in his or her capacity as a director or officer of the Company, or any designee of the Stockholder who is a director or officer of the Company, from acting in such
capacity or voting in such person’s sole discretion on any matter (it being understood that this Agreement shall apply to the Stockholder solely in the Stockholder’s capacity as a stockholder of the Company). 

6. Irrevocable Proxy. Concurrently with the execution of this Agreement, the Stockholder shall deliver to Parent a proxy in the
form attached hereto as Exhibit A (the “Proxy”) with respect to the Subject Shares, which shall be irrevocable to the fullest extent permissible by law. 

7. No Ownership Interest. Nothing contained in this Agreement shall be deemed to vest in Parent any direct or indirect ownership
or incidence of ownership of or with respect to any of the Subject Shares. All rights, ownership and economic benefits of and relating to the Subject Shares shall remain vested in and belong to the Stockholder, and Parent shall not have the
authority to manage, direct, restrict, regulate, govern or administer any of the policies or operations of the Company or exercise any power or authority to direct the Stockholder in the voting of any of the Subject Shares to the extent such Subject
Shares are entitled to be voted, except as otherwise provided herein. 
 8. Representations and Warranties of the
Stockholder. The Stockholder represents and warrants to Parent as follows: 
 (a) Organization; Power; Binding
Agreement. If the Stockholder is not an individual, it is duly organized and validly existing and in good standing under the laws of the jurisdiction of its organization and has full power and authority to execute and deliver this Agreement and
the Proxy, to perform all of the Stockholder’s obligations hereunder and to consummate the transactions contemplated hereby. If the Stockholder is an individual, the Stockholder has full legal capacity, right and authority to execute and
deliver this Agreement and the Proxy, to perform all of the Stockholder’s obligations hereunder and to consummate the transactions contemplated hereby. If the Stockholder is not an individual, the execution and delivery by the Stockholder of
this Agreement, the performance by the Stockholder of its obligations hereunder and the consummation by the Stockholder of the transactions contemplated hereby have been duly and validly authorized by the Stockholder and no other actions or
proceedings on the part of the Stockholder are necessary to authorize the execution and delivery by the Stockholder of this Agreement, the performance by the Stockholder of its obligations hereunder or the consummation by the Stockholder of the
transactions contemplated hereby. This Agreement has been duly executed and delivered by the Stockholder and, assuming this Agreement constitutes a valid and binding obligation of Parent, constitutes a valid and binding obligation of the
Stockholder, enforceable against the Stockholder in accordance with its terms, subject to: (i) laws of general application relating to bankruptcy, insolvency and the relief of debtors; and (ii) rules of law governing specific performance
and other equitable remedies. 
 (b) No Conflicts. Except for filings under the Exchange Act and filings under the HSR
Act, no filing with, and no permit, authorization, consent or approval of, any Governmental Body is necessary for the execution and delivery by the Stockholder of this 

  
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Agreement, the performance by the Stockholder of its obligations hereunder and the consummation by the Stockholder of the transactions contemplated hereby. None of the execution and delivery by
the Stockholder of this Agreement, the performance by the Stockholder of its obligations hereunder or the consummation by the Stockholder of the transactions contemplated hereby will: (i) if the Stockholder is not an individual, conflict with
or result in any breach of any organizational documents applicable to the Stockholder; (ii) result in a violation or breach of, or constitute (with or without notice or lapse of time or both) a default (or give rise to any third party right of
termination, cancellation, material modification or acceleration) under any of the terms, conditions or provisions of any note, loan agreement, bond, mortgage, indenture, commitment, arrangement, understanding or other agreement to which the
Stockholder is a party or by which the Stockholder or any of the Stockholder’s properties or assets may be bound, or result in the creation of any Encumbrance (as defined below) with respect to any of such Stockholder’s Subject Shares; or
(iii) violate any order, writ, injunction, decree, judgment, order, statute, rule or regulation applicable to the Stockholder or any of the Stockholder’s properties or assets. If the Stockholder is an individual, is married and the Subject
Shares constitute community property or applicable law requires spousal approval for this Agreement to be legal, valid and binding with respect to the Stockholder and its Subject Shares, this Agreement has been duly authorized, executed and
delivered by, and constitutes a valid and binding agreement of, the Stockholder’s spouse, enforceable against such spouse in accordance with its terms. No trust of which the Stockholder is a trustee requires the consent of any beneficiary to
the execution and delivery of this Agreement or to the consummation of the transactions contemplated hereby. 
 (c) Ownership
of Shares. The Stockholder: (i) is the beneficial owner of the shares of Company Common Stock indicated on the signature page of this Agreement, all of which are free and clear of any liens, adverse claims, charges, security interests,
pledges or options, proxies, voting trusts, agreements or understandings, or any other similar rights (“Encumbrances”) (except for any Encumbrances arising under securities laws, arising out of the Stockholder holding the
Subject Shares in a securities margin account or arising hereunder); (ii) is the owner of options and warrants that are exercisable for the number of shares of Company Common Stock indicated on the signature page of this Agreement, all of which
options and warrants and shares of Company Common Stock issuable upon the exercise of such options and warrants are free and clear of any Encumbrances (except for any Encumbrances arising under securities laws, arising out of the Stockholder holding
the Subject Shares in a securities margin account or arising hereunder); and (iii) does not own, beneficially or otherwise, any securities of the Company or have an interest in or voting rights with respect to any securities of the Company
other than the shares of Company Common Stock, options and warrants to purchase shares of Company Common Stock and shares of Company Common Stock issuable upon the exercise of such options and warrants, indicated on the signature page of this
Agreement. 
 (d) Absence of Litigation. As of the date hereof, there is no action, suit, investigation or proceeding
pending against or, to the knowledge of the Stockholder, threatened against or otherwise affecting, the Stockholder or any of its or his properties or assets (including the Subject Shares) that would reasonably be expected to impair the ability of
the Stockholder to perform its or his obligations hereunder or to consummate the transactions contemplated hereby on a timely basis. 

  
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 (e) No Finder’s Fees. No broker, investment banker, financial advisor or other
Person is entitled to any broker’s, finder’s, financial advisor’s or other similar fee or commission in connection with the transactions contemplated by the Merger Agreement or this Agreement based upon arrangements made by or on
behalf of the Stockholder. 
 (f) Reliance by Parent. The Stockholder understands and acknowledges that Parent is
entering into the Merger Agreement in reliance upon the Stockholder’s execution and delivery of this Agreement. 
 9.
Representations and Warranties of Parent. Parent represents and warrants to the Stockholder as follows: 
 (a) Valid
Existence. Parent is a corporation validly existing and in good standing under the laws of the State of Delaware. 
 (b)
Authority; Binding Nature of Agreement. Parent has all necessary corporate power and authority to enter into and to perform its obligations under this Agreement, and the execution, delivery and performance by Parent of this Agreement has been
duly authorized by any necessary action on the part of Parent and its board of directors. This Agreement constitutes the legal, valid and binding obligation of Parent, enforceable against it in accordance with its terms, subject to: (i) laws of
general application relating to bankruptcy, insolvency and the relief of debtors; and (ii) rules of law governing specific performance, injunctive relief and other equitable remedies. 

(c) Non-Contravention. Neither the execution and delivery of this Agreement by Parent nor the consummation by Parent of the
transactions contemplated hereby will, directly or indirectly (with or without notice or lapse of time): (i) result in a violation of any provision of the certificate of incorporation or bylaws of Parent; or (ii) result in a violation by
Parent of any order, writ, injunction, judgment or decree to which Parent is subject, except in each case for any violation that will not have a material adverse effect on the ability of Parent to consummate the transactions contemplated hereby.

 10. No Solicitation; Notification. 
 (a) No Solicitation. The Stockholder understands and acknowledges the obligations of the Company under Section 4.4(a) of the Merger Agreement and agrees that the Stockholder (solely in the
Stockholder’s capacity as such) shall not, and shall not authorize or permit any investment banker, attorney or other advisor or representative retained by the Stockholder to act on the Stockholder’s behalf to, directly or indirectly, take
any action or omit to take any action in contravention of such obligations or to circumvent the purposes of Section 4.4(a) of the Merger Agreement or otherwise take any action that the Company is prohibited from taking or authorizing to be
taken pursuant to Section 4.4(a) of the Merger Agreement. 

  
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 (b) Notice of Certain Events. The Stockholder agrees to promptly notify Parent of any
development occurring after the date hereof that causes, or that would reasonably be expected to cause, any breach of any of the representations and warranties of the Stockholder set forth herein. 

11. Warrants; Registration Rights. The Stockholder hereby (a) consents and agrees to the treatment of the Company Warrants
owned (beneficially or of record) by the Stockholder as set forth in Section 1.6(c) of the Merger Agreement and (b) waives any and all registration rights of the Stockholder pursuant to the Company’s Registration Rights Agreement
dated as of December 17, 2008 with respect to such Stockholder’s Subject Shares. Subject to the terms and conditions of this Agreement, the Stockholder hereby agrees to take, or cause to be taken, all actions, and to do, or cause to be
done, all things (including the execution of such other agreements, certificates and other documents) reasonably necessary to effect the agreements and waivers set forth in this Section 11. 

12. Disclosure. The Stockholder shall permit Parent to publish and disclose in all documents and schedules filed with the SEC, and
any press release or other disclosure document that Parent determines to be necessary or desirable in connection with the Merger and any transactions related thereto, the Stockholder’s identity and ownership of Subject Shares and the nature of
the Stockholder’s commitments, arrangements and understandings under this Agreement. 
 13. Consents and Waivers.
The Stockholder hereby gives any consents or waivers that are reasonably required for the consummation of the Merger under the terms of any agreements to which the Stockholder is a party or pursuant to any rights the Stockholder may have.

 14. Street Name Subject Shares. The Stockholder agrees to deliver a letter to each financial intermediary or other
Person through which the Stockholder holds Subject Shares that informs such Person of the Stockholder’s obligations under this Agreement and that directs such Person to not act in disregard of such obligations without the prior written consent
of Parent. 
 15. Further Assurances. The Stockholder agrees not to take any action which would make any representation
or warranty of such Stockholder herein untrue or incorrect in any material respect as of any time prior to the termination of this Agreement or take any action that would have the effect of preventing or disabling it from performing its obligations
under this Agreement. Subject to the terms and conditions of this Agreement, the Stockholder shall use commercially reasonable efforts to take, or cause to be taken, all actions, and to do, or cause to be done, all things necessary to fulfill such
Stockholder’s obligations under this Agreement. 
 16. Legending of Shares. If so requested by Parent, the
Stockholder agrees that the Subject Shares shall bear a legend stating that they are subject to this Agreement and the Proxy. 

17. Termination. This Agreement and the Proxy shall terminate and shall have no further force or effect as of the Expiration Date;
provided, that Section 18 shall survive such termination. Notwithstanding the foregoing, nothing set forth in this Section 17 or elsewhere in this Agreement shall relieve either party hereto from liability, or otherwise limit the
liability of 

  
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either party hereto, for any material breach of this Agreement. For the avoidance of doubt, this Agreement does not terminate upon any Change in Company Board Recommendation unless the Merger
Agreement is terminated in accordance with its terms. 
 18. Miscellaneous. 

(a) Binding Effect and Assignment. This Agreement and all of the provisions hereof shall be binding upon and inure to the benefit
of the parties hereto and their respective successors and permitted assigns. Neither this Agreement nor any of the rights, interests or obligations hereunder shall be assigned by any of the parties hereto, in whole or in part (whether by operation
of law or otherwise), without the prior written consent of the other party, and any attempt to make any such assignment without such consent shall be null and void. 
 (b) Amendments; Waiver. This Agreement may be amended by the parties hereto, and the terms and conditions hereof may be waived, only by an instrument in writing signed on behalf of each of the
parties hereto, or, in the case of a waiver, by an instrument signed on behalf of the party waiving compliance. 
 (c)
Specific Enforcement. The parties hereto agree that irreparable damage would occur to Parent for which monetary damages would not be an adequate remedy in the event that any of the provisions of this Agreement are not performed in accordance
with the terms hereof or are otherwise breached by the Stockholder, and that Parent, in addition to any other remedy to which Parent is entitled at law or in equity, shall be entitled to specific performance and the issuance of injunctive and other
equitable relief to prevent any such breach or threatened breach. The Stockholder further agrees to waive any requirement for the securing or posting of any bond in connection with the obtaining of any such injunctive or other equitable relief.

 (d) Notices. All notices and other communications hereunder shall be in writing and shall be deemed duly delivered:
(i) upon receipt if personally delivered, sent by registered or certified mail, return receipt requested, postage prepaid, or sent for next Business Day delivery, fees prepaid, via a reputable nationwide overnight courier service; or
(ii) on the date of confirmation of receipt (or the first (1st) Business Day following such receipt if the date of such receipt is not a Business Day) of transmission by facsimile, in each case to the intended recipient as set forth below
(or to such other address or facsimile telephone number as such party shall have specified in a written notice given to the other parties hereto): 
 if to Parent: 
 Zeneca Inc. 

1800 Concord Pike 
 Wilmington, DE 19803 
 Attention: General Counsel 

Facsimile No: (302) 886-1578 
 with a copy to (which copy shall not constitute notice): 

Covington & Burling LLP 

  
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 1201 Pennsylvania Avenue, NW 

Washington, DC 20004-2401 
 Attention: Catherine J. Dargan 
 Stephen A. Infante 

Facsimile No: (202) 778-5567 
 if to the Stockholder, to its address set forth on the Stockholder’s signature page hereto, with a copy to: 
 Ropes & Gray LLP 
 Three Embarcadero Center 

San Francisco, CA 94111-4006 
 Attention: Ryan A. Murr 
 Facsimile No: (415) 315-6026 

(e) No Waiver. The failure of either party hereto to exercise any right or remedy provided under this Agreement, or to insist upon
compliance by any other party with its obligations under this Agreement, shall not constitute a waiver by such party of such party’s right to exercise any such right or remedy or to demand such compliance. 

(f) Applicable Law; Jurisdiction. This Agreement shall be governed by, and construed in accordance with, the laws of the State of
Delaware, regardless of the laws that might otherwise govern under applicable principles of conflicts of laws. All actions and proceedings arising out of or relating to this Agreement or the negotiation, validity or performance of this Agreement
shall be heard and determined exclusively in the Court of Chancery of the State of Delaware, and the parties irrevocably submit to the jurisdiction of such court (and, in the case of appeals, the appropriate appellate court therefrom) in any such
action or proceeding and irrevocably waive the defense of an inconvenient forum to the maintenance of any such action or proceeding. The consents to jurisdiction set forth in this paragraph shall not constitute general consents to service of process
in the State of Delaware, shall have no effect for any purpose except as provided in this paragraph and shall not be deemed to confer rights on any Person other than the parties hereto. The parties agree that service of any court paper may be made
in any manner as may be provided under Section 18(d) or otherwise under the applicable laws or court rules governing service of process in such court. The parties hereto agree that a final judgment in any such action or proceeding shall be
conclusive and may be enforced in other jurisdictions by suit on the judgment or in any other manner provided by applicable law. EACH OF THE PARTIES HERETO IRREVOCABLY WAIVES TO THE FULLEST EXTENT PERMITTED BY APPLICABLE LAW ANY AND ALL RIGHTS TO
TRIAL BY JURY IN ANY LEGAL PROCEEDING ARISING OUT OF OR RELATED TO THIS AGREEMENT OR THE TRANSACTIONS CONTEMPLATED HEREBY. 

(g) Entire Agreement; No Third Party Beneficiary. This Agreement, including Exhibit A hereto, together with the Merger
Agreement, constitutes the entire agreement, and supersedes all prior agreements and understandings, both written and oral, among the parties hereto with respect to the subject matter of this Agreement. This Agreement, including Exhibit A, is
not intended, and shall not be deemed, to confer any rights or remedies upon any person other than the parties hereto and their respective successors and permitted assigns or to otherwise create any third party beneficiary hereto. 

  
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 (h) Severability. Any term or provision of this Agreement that is invalid or
unenforceable in any situation in any jurisdiction shall not affect the validity or enforceability of the remaining terms and provisions of this Agreement or the validity or enforceability of the offending term or provision in any other situation or
in any other jurisdiction. 
 (i) Construction. 

(i) For purposes of this Agreement, whenever the context requires, the singular number shall include the plural, and vice versa, and any
reference to gender shall include the masculine, feminine and neuter genders. 
 (ii) The parties hereto agree that any rule of
construction to the effect that ambiguities are to be resolved against the drafting party shall not be applied in the construction or interpretation of this Agreement. 
 (iii) As used in this Agreement, unless the text otherwise requires, the words “include” and “including,” and variations thereof, shall not be deemed to be terms of limitation, but
rather shall be deemed to be followed by the words “without limitation”, and the word “or” shall not be deemed exclusive and shall mean “and/or.” 

(iv) Except as otherwise indicated, all references in this Agreement to “Sections” and “Exhibits” are intended to
refer to Sections of this Agreement and Exhibits to this Agreement. 
 (v) The use of the terms “hereunder,”
“hereof,” “hereto” and words of similar import shall refer to this Agreement as a whole and not to any particular Section, paragraph or clause of this Agreement. 

(j) Expenses. All costs and expenses incurred in connection with this Agreement and the transactions contemplated hereby shall be
paid by the party incurring such expenses. 
 (k) Counterparts; Signatures. This Agreement may be executed in two
(2) or more counterparts, each of which shall be deemed an original but all of which together shall be considered one and the same agreement and shall become effective when counterparts have been signed by each of the parties hereto and
delivered to the other parties, it being understood that all parties need not sign the same counterpart. This Agreement may be executed and delivered by facsimile transmission, by electronic mail in “portable document format”
(“.pdf”) form, or by any other electronic means intended to preserve the original graphic and pictorial appearance of a document, or by combination of such means. 
 [Remainder of Page Intentionally Left Blank] 

  
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 IN WITNESS WHEREOF, the undersigned have
caused this Agreement to be executed as of the date first above written. 
  

			
	STOCKHOLDER:
		
	By:	 	
		
	By:	 	  

	
	Name:
	
	Title:
	
	Subject Shares Beneficially Owned
	
	            shares of Company Common Stock
	
	            shares of Company Common Stock issuable upon exercise of outstanding options and
warrants
	
	ADDRESS:
	
	Attention:
	Facsimile:

 **** VOTING AGREEMENT **** 

 EXHIBIT A 

IRREVOCABLE PROXY 
 The undersigned stockholder (the “Stockholder”) of Ardea BioSciences, Inc., a Delaware corporation (the “Company”), hereby irrevocably (to the fullest
extent permitted by law) appoints the directors on the Board of Directors of Zeneca Inc., a Delaware corporation (“Parent”), each of their designees, and each of them, as the sole and exclusive attorneys and proxies of the
Stockholder, with full power of substitution and resubstitution, to vote and exercise all voting and related rights (to the full extent that the Stockholder is entitled to do so) with respect to all of the shares of capital stock of the Company that
now are or hereafter may be beneficially owned by the Stockholder, and any and all other shares or securities of the Company issued or issuable in respect thereof on or after the date hereof (collectively, the “Subject
Shares”) in accordance with the terms of this Irrevocable Proxy until the Expiration Date (as defined below). Upon the Stockholder’s execution of this Irrevocable Proxy, any and all prior proxies given by the Stockholder with
respect to any Subject Shares are hereby revoked and the Stockholder agrees not to grant any subsequent proxies with respect to the Subject Shares until after the Expiration Date. 

This Irrevocable Proxy is irrevocable to the fullest extent permitted by law, is coupled with an interest and is granted pursuant to that
certain Voting Agreement of even date herewith by and among Parent and the Stockholder (the “Voting Agreement”), and is granted in consideration of Parent entering into that certain Agreement and Plan of Merger of even date
herewith (the “Merger Agreement”), among Parent, QAM Corp., a Delaware corporation and wholly owned subsidiary of Parent (“Merger Sub”), and the Company, pursuant to which Merger Sub will be merged
with and into the Company, and the Company will be the surviving corporation and continue as a wholly owned subsidiary of Parent (the “Merger”). 
 As used herein, the term “Expiration Date” shall mean the earliest to occur of such date and time as: (i) the Merger Agreement shall have been terminated in accordance with
its terms; (ii) the Effective Time (as defined in the Merger Agreement); and (iii) at the option of the Stockholder, upon Parent’s receipt of written notice by the Stockholder following any amendment or modification to the Merger
Agreement that materially adversely affects the Stockholder (including but not limited to any reduction or change in the amount of or form of the Merger Consideration or any change in the conditions to the Merger). 

The attorneys and proxies named above, and each of them, are hereby authorized and empowered by the Stockholder, at any time prior to the
Expiration Date, to act as the Stockholder’s attorney and proxy to vote the Subject Shares to the fullest extent such Subject Shares are entitled to be voted, and to exercise all voting, consent and similar rights of the Stockholder with
respect to the Subject Shares (including, without limitation, the power to execute and deliver written consents) at every annual, special, adjourned or postponed meeting of stockholders of the Company and in every written consent in lieu of such
meeting (regardless of any Change in Company Board Recommendation, as such term is defined in the Merger Agreement): (i) in favor of the adoption of the Merger Agreement and, without limitation of the preceding language, the approval of any
proposal to adjourn or postpone any meeting of the 

 
stockholders of the Company to a later date if there are not sufficient votes for adoption of the Merger Agreement on the date on which such meeting is held to the extent Company stockholder
approval is required for such adjournment or postponement and such adjournment or postponement is in accordance with Section 4.3(b) of the Merger Agreement; (ii) against approval of any proposal made in opposition to, or in competition
with, consummation of the Merger or any other transactions contemplated by the Merger Agreement; and (iii) against any of the following actions: (A) any Acquisition Transaction; and (B) any other action or agreement (except any
proposal to adjourn or postpone any meeting of the stockholders of the Company contemplated in clause (i) above) that is intended to or would reasonably be expected to impede, prevent, delay or adversely affect the Merger or any other
transactions contemplated by the Merger Agreement. 
 The attorneys and proxies named above may not exercise this Irrevocable
Proxy on any other matter. The Stockholder may vote the Subject Shares to the extent such Subject Shares are entitled to be voted on all other matters. 
 Any obligation of the Stockholder hereunder shall be binding upon the successors and permitted assigns of the Stockholder. 
 This Irrevocable Proxy shall terminate, and be of no further force and effect, automatically upon the Expiration Date. 
 The Stockholder acknowledges and agrees that neither Parent nor any of its successors, permitted assigns, Affiliates (as such term is defined in the Merger Agreement), employees, stockholders, agents or
other representatives, shall incur any liability to the Stockholder in connection with or as a result of any exercise of the proxy granted to Parent pursuant to this Irrevocable Proxy, other than in connection with any such exercise that results in
a breach by Parent of this Irrevocable Proxy (in which case, only Parent may incur any liability therefor). 
  

					
	Dated: April     , 2012	 	STOCKHOLDER:
		
		 	  

			
		 	By:	 	  

			
		 	Name:	 	  

			
		 	Title:	 	  

 ***** IRREVOCABLE PROXY ****Asset Purchase Agreement

 Exhibit 10.1 

 

	**	Indicates that certain information contained herein has been omitted and filed separately with the Securities and Exchange Commission. Confidential treatment has
been requested with respect to the omitted portions. 

 ASSET PURCHASE AGREEMENT 

between 
 S*BIO
PTE LTD. 
 and 
 CELL THERAPEUTICS, INC. 
 Dated as of April 18, 2012 

 Table of Contents 

 

											
	 	 	 	 	 	 	 	  	Page	 
			
	ARTICLE I	 	DEFINITIONS AND TERMS	  	 	1	  
					
		 	Section 1.1	 		 	Certain Definitions	  	 	1	  
		 	Section 1.2	 		 	Other Terms	  	 	15	  
		 	Section 1.3	 		 	Other Definitional Provisions	  	 	15	  
			
	ARTICLE II	 	PURCHASE AND SALE	  	 	15	  
					
		 	Section 2.1	 		 	Purchase and Sale of Assets	  	 	15	  
		 	Section 2.2	 		 	Excluded Assets	  	 	17	  
		 	Section 2.3	 		 	Assumption of Liabilities	  	 	18	  
		 	Section 2.4	 		 	Excluded Liabilities	  	 	18	  
		 	Section 2.5	 		 	Purchase Price	  	 	18	  
		 	Section 2.6	 		 	Closing	  	 	19	  
		 	Section 2.7	 		 	Deposit	  	 	19	  
		 	Section 2.8	 		 	Allocation of Purchase Price	  	 	19	  
		 	Section 2.9	 		 	Deliveries by Buyer	  	 	19	  
		 	Section 2.10	 		 	Deliveries by Seller	  	 	20	  
		 	Section 2.11	 		 	Affiliate Acquisitions	  	 	20	  
		 	Section 2.12	 		 	Milestone Payments	  	 	21	  
		 	Section 2.13	 		 	Royalty Payments	  	 	22	  
		 	Section 2.14	 		 	Diligence	  	 	23	  
		 	Section 2.15	 		 	Update Reports	  	 	24	  
		 	Section 2.16	 		 	Exchange Rate; Manner and Place of Payment	  	 	24	  
		 	Section 2.17	 		 	Audit	  	 	24	  
		 	Section 2.18	 		 	Late Payments	  	 	25	  
		 	Section 2.19	 		 	Milestone Cash or Stock Election	  	 	25	  
		 	Section 2.20	 		 	Set-off	  	 	26	  
			
	ARTICLE III	 	REPRESENTATIONS AND WARRANTIES OF SELLER	  	 	26	  
					
		 	Section 3.1	 		 	Organization and Qualification	  	 	26	  
		 	Section 3.2	 		 	Corporate Authorization	  	 	26	  
		 	Section 3.3	 		 	Consents and Approvals	  	 	26	  
		 	Section 3.4	 		 	Non-Contravention	  	 	26	  
		 	Section 3.5	 		 	Binding Effect	  	 	27	  
		 	Section 3.6	 		 	Litigation and Claims	  	 	27	  
		 	Section 3.7	 		 	Taxes	  	 	27	  
		 	Section 3.8	 		 	Compliance with Laws	  	 	28	  
		 	Section 3.9	 		 	Intellectual Property	  	 	28	  
		 	Section 3.10	 		 	Regulatory Compliance	  	 	32	  
		 	Section 3.11	 		 	FDA Compliance	  	 	33	  
		 	Section 3.12	 		 	Clinical Studies	  	 	33	  
		 	Section 3.13	 		 	Contracts	  	 	34	  
		 	Section 3.14	 		 	Territorial Restrictions	  	 	34	  

  
 -i-

 Table of Contents 

(continued) 
  

											
	 	 	 	 	 	 	 	  	Page	 
					
		 	Section 3.15	 		 	Absence of Certain Changes and Events	  	 	34	  
		 	Section 3.16	 		 	Confidentiality	  	 	35	  
		 	Section 3.17	 		 	Insurance Claims	  	 	35	  
		 	Section 3.18	 		 	Title to Transferred Assets	  	 	35	  
		 	Section 3.19	 		 	Suppliers	  	 	35	  
		 	Section 3.20	 		 	Solvency	  	 	35	  
		 	Section 3.21	 		 	Foreign Corrupt Practices	  	 	35	  
		 	Section 3.22	 		 	Securities Law Matters	  	 	36	  
		 	Section 3.23	 		 	Finders’ Fees	  	 	36	  
		 	Section 3.24	 		 	No Other Representations or Warranties	  	 	36	  
			
	ARTICLE IV	 	REPRESENTATIONS AND WARRANTIES OF BUYER	  	 	36	  
					
		 	Section 4.1	 		 	Organization and Qualification	  	 	36	  
		 	Section 4.2	 		 	Corporate Authorization	  	 	37	  
		 	Section 4.3	 		 	Consents and Approvals	  	 	37	  
		 	Section 4.4	 		 	Non-Contravention	  	 	37	  
		 	Section 4.5	 		 	Binding Effect	  	 	37	  
		 	Section 4.6	 		 	Litigation and Claims	  	 	37	  
		 	Section 4.7	 		 	Capitalization	  	 	37	  
		 	Section 4.8	 		 	SEC Filings; Financial Statements	  	 	38	  
		 	Section 4.9	 		 	Access	  	 	39	  
		 	Section 4.10	 		 	Reliance	  	 	39	  
		 	Section 4.11	 		 	No Buyer Vote Required	  	 	39	  
		 	Section 4.12	 		 	Financing	  	 	39	  
		 	Section 4.13	 		 	No Other Representations or Warranties	  	 	39	  
			
	ARTICLE V	 	COVENANTS	  	 	39	  
					
		 	Section 5.1	 		 	Access and Information	  	 	39	  
		 	Section 5.2	 		 	Conduct of Business	  	 	40	  
		 	Section 5.3	 		 	No Shop	  	 	41	  
		 	Section 5.4	 		 	Commercially Reasonable Best Efforts	  	 	41	  
		 	Section 5.5	 		 	Tax Matters	  	 	41	  
		 	Section 5.6	 		 	Ancillary Agreement	  	 	43	  
		 	Section 5.7	 		 	Notification	  	 	43	  
		 	Section 5.8	 		 	Non-Competition	  	 	44	  
		 	Section 5.9	 		 	Further Assurances	  	 	44	  
		 	Section 5.10	 		 	Confidentiality	  	 	44	  
		 	Section 5.11	 		 	Springing SB1518 Grant-Back	  	 	45	  
		 	Section 5.12	 		 	Assistance in Proceedings	  	 	45	  
		 	Section 5.13	 		 	Transfer of Regulatory Materials; Interim Responsibility	  	 	46	  
		 	Section 5.14	 		 	Communication With Agencies	  	 	46	  
		 	Section 5.15	 		 	Adverse Experience Reporting	  	 	47	  

 Table of Contents 

(continued) 
  

											
	 	 	 	 	 	 	 	  	Page	 
					
		 	Section 5.16	 		 	Financial Statement Reporting	  	 	47	  
		 	Section 5.17	 		 	Certain Intellectual Property Covenants	  	 	48	  
			
	ARTICLE VI	 	CONDITIONS TO CLOSING	  	 	48	  
					
		 	Section 6.1	 		 	Conditions to the Obligations of Buyer	  	 	48	  
		 	Section 6.2	 		 	Conditions to the Obligations of Seller	  	 	49	  
			
	ARTICLE VII	 	SURVIVAL; INDEMNIFICATION; CERTAIN REMEDIES	  	 	50	  
					
		 	Section 7.1	 		 	Survival	  	 	50	  
		 	Section 7.2	 		 	Indemnification by Seller	  	 	50	  
		 	Section 7.3	 		 	Indemnification by Buyer	  	 	51	  
		 	Section 7.4	 		 	Third Party Claim Indemnification Procedures	  	 	51	  
		 	Section 7.5	 		 	Direct Claims	  	 	54	  
		 	Section 7.6	 		 	Limitations	  	 	54	  
		 	Section 7.7	 		 	Indemnification in Case of Strict Liability or Indemnitee Negligence	  	 	55	  
		 	Section 7.8	 		 	Payments	  	 	55	  
		 	Section 7.9	 		 	Characterization of Indemnification Payments	  	 	56	  
		 	Section 7.10	 		 	Mitigation	  	 	56	  
		 	Section 7.11	 		 	Effect of Waiver of Condition	  	 	56	  
		 	Section 7.12	 		 	Right of Set-Off	  	 	56	  
		 	Section 7.13	 		 	Specific Performance	  	 	56	  
			
	ARTICLE VIII	 	TERMINATION	  	 	57	  
					
		 	Section 8.1	 		 	Termination	  	 	57	  
		 	Section 8.2	 		 	Effect of Termination	  	 	57	  
				
	ARTICLE IX	 		 	MISCELLANEOUS	  	 	58	  
					
		 	Section 9.1	 		 	Notices	  	 	58	  
		 	Section 9.2	 		 	Amendment; Waiver; Remedies Cumulative	  	 	59	  
		 	Section 9.3	 		 	No Assignment or Benefit to Third Parties	  	 	59	  
		 	Section 9.4	 		 	Entire Agreement	  	 	60	  
		 	Section 9.5	 		 	Fulfillment of Obligations	  	 	60	  
		 	Section 9.6	 		 	Public Disclosure	  	 	60	  
		 	Section 9.7	 		 	Expenses	  	 	60	  
		 	Section 9.8	 		 	Bulk Sales	  	 	60	  
		 	Section 9.9	 		 	Governing Law: Submission to Jurisdiction: Selection of Forum; Waiver of Trial by Jury	  	 	61	  
		 	Section 9.10	 		 	Counterparts	  	 	61	  
		 	Section 9.11	 		 	Headings	  	 	61	  
		 	Section 9.12	 		 	Severability	  	 	61	  
		 	Section 9.13	 		 	Disclosure Schedules	  	 	61	  

 ASSET PURCHASE AGREEMENT, dated as of April 18, 2012, between S*BIO Pte Ltd., a
Singapore private limited company (“Seller”), and Cell Therapeutics, Inc., a Washington corporation (“Buyer”). 
 WITNESSETH: 
 WHEREAS, Seller possesses certain assets, including, without
limitation, the proprietary technology and know-how related to the research, discovery, identification, syntheses and development of compounds that inhibit Janus kinase 2, commonly referred to as JAK2 (“JAK2”), including the Seller
compounds designated as SB1518 and SB1578; and 
 WHEREAS, Seller desires to sell to Buyer and Buyer desires to purchase and
assume from Seller certain assets and liabilities related to SB1518 and SB1578, as more particularly set forth herein. 
 NOW,
THEREFORE, in consideration of the premises and the mutual representations, warranties, covenants and undertakings contained herein, and for other good and valuable consideration, the receipt and sufficiency of which are hereby acknowledged, the
parties hereto, intending to be legally bound, agree as follows: 
 ARTICLE I 

DEFINITIONS AND TERMS 
 Section 1.1 Certain Definitions. As used in this Agreement, the following terms have the meanings set forth below: 
 “Acute Myeloid Leukemia” means the disease or condition referred to and recognized by the FDA as acute myeloid leukemia as of the date of this Agreement (whether or not such disease or
condition continues to be known by such name in the United States after the date of this Agreement, and whether or not any Regulatory Authority outside of the United States refers to such disease or condition by that name or another name as of or
after the date of this Agreement). 
 “Affiliate” means, with respect to any Person, any Person directly or
indirectly controlling, controlled by, or under common control with, such other Person as of the date on which, or at any time during the period for which, the determination of affiliation is being made. For purposes of this definition, the term
“control” (including the correlative meanings of the terms “controlled by” and “under common control with”), as used with respect to any Person, means the possession, directly or indirectly, of the power to direct or
cause the direction of the management policies of such Person, whether through the ownership of voting securities or by contract or otherwise. 
 “Agreement” means this Asset Purchase Agreement, as the same may be amended or supplemented from time to time in accordance with the terms hereof. 

“Ancillary Agreement” means the registration rights agreement attached hereto as Exhibit A to be entered into at
Closing between Buyer and Seller. 

  
 -1-

 “Asia” means all countries in Asia east of the westernmost boundary of
India (including all countries portions of which lie to the east of such boundary but not including the former U.S.S.R. or any U.S. Territories) and all countries in East Asia, South Asia and Southeast Asia, including Asian countries, and shall
include, but shall not be limited to, the following countries: Bangladesh, Bhutan, Brunei Darussalam, Cambodia, People’s Republic of China, Cyprus, Hong Kong, India, Indonesia, Japan, Democratic People’s Republic of Korea, Republic of
Korea, Lao People’s Democratic Republic, Macau, Malaysia, Maldives, Mongolian People’s Republic, Union of Myanmar (Burma), Kingdom of Nepal, Pakistan, Philippines, Singapore, Sri Lanka, Republic of China (Taiwan), Thailand, and Vietnam.

 “Assigned Contracts” has the meaning set forth in Section 2.1(e). 

“Assumed Liabilities” means only the Liabilities that Buyer has expressly assumed or agreed to assume under
Section 2.3 of this Agreement. 
 “Authorizations” means Governmental Authorizations and
Non-Governmental Authorizations. 
 “Bankruptcy Exception” shall have the meaning set forth in
Section 3.5. 
 “Books and Records” means all books, ledgers, files, reports, plans, records,
manuals and other materials, including books of account, records, files, invoices, correspondence and memoranda, scientific records and files (including laboratory notebooks and invention disclosures), customer and supplier lists, data,
specifications, operating history information and inventory records (in any form or medium) of, or maintained for, or relating to, the Transferred Assets, but excluding any such items to the extent (i) they are included in or primarily related
to any Excluded Assets or Excluded Liabilities, or (ii) any Law prohibits their transfer. 
 “Business
Day” means any day other than a Saturday, a Sunday or a day on which banks in New York are authorized or obligated by Law or executive order to close. 
 “Buyer” has the meaning set forth in the Preamble. 

“Buyer Indemnified Parties” has the meaning set forth in Section 7.2. 

“Buyer Required Approvals” means all consents, approvals, waivers, authorizations, notices and filings from or with a
Government Entity that are required to be and are listed on Schedule 4.3. 
 “Change of Control
Transaction” has the meaning set forth in Section 5.8(a). 
 “Chosen Courts” has the
meaning set forth in Section 9.9. 
 “Chronic Myelogenous Leukemia” means the disease or condition
referred to and recognized by the FDA as chronic myelogenous leukemia as of the date of this Agreement (whether or not such disease or condition continues to be known by such name in the United States after the date of this Agreement, and whether or
not any Regulatory Authority outside of the United States refers to such disease or condition by that name or another name as of or after the date of this Agreement). 

  
 2. 

 “Claim Notice” has the meaning set forth in Section 7.4(a).

 “Clinical Data” means data resulting from any pre-clinical study or clinical trial of any Seller Compound,
generated by or for Seller or its Subsidiaries or any of their licensees (including Onyx), together with the applicable protocol for each such study or trial, as well as all associated site related documentation, investigator brochures,
investigational review board correspondence, and data monitoring committee minutes and documentation. 

“Closing” means the closing of the Transaction. 

“Closing Date” has the meaning set forth in Section 2.6. 

“Commercially Reasonable Efforts” has the meaning set forth in Section 2.14. 

“Competing Business” has the meaning set forth in Section 5.8(a). 

“Competing Compound” has the meaning set forth in Section 5.8(a). 

“Confidentiality Agreement” means the confidentiality agreement, dated February 16, 2012, between Seller and Buyer.

 “Contracts” means all agreements, contracts, leases and subleases, purchase orders, arrangements,
commitments and licenses (other than this Agreement and the Ancillary Agreement), whether written or oral. 

“Control” or “Controlled,” means with respect to any Intellectual Property, possession by a Person of
the ability (whether by ownership, license or otherwise) to transfer ownership of, to grant access to, to grant use of, or to grant a license or a sublicense of or under such Intellectual Property without violating the terms of any agreement or
other arrangement with any third party. 
 “Copyrights” means copyrights and registrations and applications
therefor, works of authorship, content (including website content) and mask work rights. 
 “Development” means
pre-clinical and clinical drug development activities, including clinical trials, relating to the development of pharmaceutical compounds and submission of information to a Regulatory Authority for the purpose of obtaining Regulatory Approval of a
Product, and activities to develop manufacturing capabilities for Products. Development includes, but is not limited to, optimization and pre-clinical activities, pharmacology studies, toxicology studies, formulation, manufacturing process
development and scale-up (including bulk compound production), quality assurance and quality control, technical support, pharmacokinetic studies, clinical trials and regulatory affairs activities. 

“Direct Claim” has the meaning set forth in Section 7.5. 

  
 3. 

 “Effective Time” means the time at which the Closing is consummated.

 “EMA” means the European Medicines Agency of the EU, and any successor agency thereto. 

“Encumbrance” means any charge, claim, community or other marital property interest, condition, easement, encroachment,
encumbrance, equitable interest, lien, mortgage, option, pledge, security interest, servitude, right of way, right of first option, right of first refusal, or other restriction or third party right of any kind, including any right of first refusal
or restriction on voting. For the avoidance of doubt, “Encumbrance” shall not include any claim that a Transferred Asset infringes on the Intellectual Property rights of any third Person. 

“Environmental Law” means any Law (including but not limited to the Comprehensive Environmental Response, Compensation
and Liability Act of 1980) and any Governmental Authorization relating to (x) the protection of the environment or human health and safety (including air, surface water, groundwater, drinking water supply, and surface or subsurface land or
structures), (y) the exposure to, or the use, storage, recycling, treatment, generation, transportation, processing, handling, labeling, management, release or disposal of any Hazardous Substance or waste material or (z) noise, odor or
electromagnetic emissions. 
 “EU” means the European Union. 

“Exchange Act” means the Securities Exchange Act of 1934, as amended. 

“Excluded Assets” has the meaning set forth in Section 2.2. 

“Excluded Liabilities” means all Liabilities of Seller or any of its Affiliates other than the Assumed Liabilities.

 “Exploit” or “Exploitation” means develop, design, test, modify, improve, make, use, sell,
have made, used and sold, import, reproduce, market, distribute, and commercialize. 
 “FDA” means the U.S.
Food and Drug Administration or any successor entity thereto. 
 “Form S-1” has the meaning set forth in
Section 2.19. 
 “Fundamental Representations” has the meaning set forth in
Section 7.1. 
 “GAAP” means United States generally accepted accounting principles. 

“Governing Documents” means with respect to any particular entity, (a) if a corporation, the articles or
certificate of incorporation and the bylaws; (b) if a general partnership, the partnership agreement and any statement of partnership or other organizational documents; (c) if a limited partnership, the limited partnership agreement and
the certificate of limited partnership or other organizational documents; (d) if a limited liability company, the articles of organization and operating agreement or other organizational documents; (e) if another type of Person, any other
charter or similar document adopted or filled in connection 

  
 4. 

 
with the creation, formation or organization of the Person; (f) all equityholders’ agreements, voting agreements, voting trust agreements, joint venture agreements, registration rights
agreements or other agreements or documents relating to the organization, management or operation of any Person or relating to the rights, duties and obligations of the equityholders of any Person; and (g) any amendment or supplement to any of
the foregoing. 
 “Government Entity” means any: 

(a) nation, state, county, city, town, borough, village, district or other jurisdiction; 

(b) federal, state, local, municipal, foreign or other government; 

(c) governmental or quasi-governmental authority of any nature (including any agency, branch, department, board, commission, court,
tribunal or other entity exercising governmental or quasi-governmental powers); 
 (d) multinational organization or body;

 (e) Regulatory Authority; 
 (f) body exercising, or entitled or purporting to exercise, any administrative, executive, judicial, legislative, police, regulatory or taxing authority or power; or 

(g) official of any of the foregoing. 
 “Governmental Authorizations” means all licenses, permits, certificates and other authorizations, consents, waivers and approvals issued by or obtained from a Government Entity or
Self-Regulatory Organization. 
 “Hazardous Substance” means any substance that is listed, defined, designated
or classified as hazardous, toxic or otherwise harmful under applicable Laws or is otherwise regulated by a Government Entity, including petroleum products and byproducts, asbestos-containing material, polychlorinated byphenyls, lead-containing
products and mold. 
 “Healthcare Laws” means any U.S., foreign or other Law or regulation related to the
development, manufacturing or commercialization of healthcare products and services, including, without limitation, (i) the U.S. Federal Food, Drug and Cosmetic Act and any regulations promulgated thereunder and any amendments or successors
thereto, (ii) the federal Anti-kickback Statute (42 U.S.C. § 1320a-7b(b)) and any regulations promulgated thereunder and any amendments or successors thereto, the Anti-Inducement Law (42 U.S.C. § 1320a-7a(a)(5)) and any regulations
promulgated thereunder and any amendments or successors thereto, (iii) the civil False Claims Act (31 U.S.C. §§ 3729 et seq.) and any regulations promulgated thereunder and any amendments or successors thereto, (iv) the
administrative False Claims Law (42 U.S.C. § 1320a-7b(a)) and any regulations promulgated thereunder and any amendments or successors thereto, (v) the Health Insurance Portability and Accountability Act of 1996 (42 U.S.C. § 1320d et
seq.) and any regulations promulgated thereunder and any amendments or successors thereto, and (vi) any foreign equivalents of any of the above. 

  
 5. 

 “Inbound Licenses” has the meaning set forth in Section 3.9(e).

 “IND” means any Investigational New Drug Application filed by any Person with the FDA pursuant to 21 CFR
Part 312 with respect to any of the Seller Compounds, as submitted to the FDA by any Person, including all amendments thereto. 

“Indemnified Parties” has the meaning set forth in Section 7.2. 

“Indemnified Taxes” means (i) any Taxes of Seller or any of its Subsidiaries with respect to any Tax period,
(ii) any Taxes for which Seller or any of its Subsidiaries is held liable under Treasury Regulations Section 1.1502-6 (or any corresponding or similar provision of state, local or foreign Tax Law) by reason of such entity being included in
any consolidated, affiliated, combined or unitary group in any Tax period, (iii) any liability for Taxes of any Person imposed on Seller or any of its Subsidiaries as a transferee or successor, or by contract or otherwise, (iv) any Taxes
allocated to Seller pursuant to Section 5.5 of this Agreement, or (v) any Taxes imposed with respect to any Royalty Payment or Milestone Payment. 
 “Indemnifying Party” has the meaning set forth in Section 7.4(a). 
 “Independently Active Pharmaceutical Ingredient” means an active pharmaceutical ingredient having a different target or a mode of action, or is otherwise treated or designated by the
applicable Regulatory Authority as a separate active ingredient, than the applicable Seller Compound. 

“Indication” means a specific disease, infection or other condition which is recognized by Regulatory Authorities in the
United States as being a disease, infection or condition. For avoidance of doubt, the term “Indication” includes each of Acute Myeloid Leukemia, Chronic Myelogenous Leukemia, Myelofibrosis, Non-Hodgkin’s Lymphoma, Psoriasis and
Rheumatoid Arthritis. All variants of a single disease, infection or condition (whether classified by severity or otherwise) will be treated as the same Indication, except that different types of cancer (e.g., as defined by site or cancer cell
origin) will be treated as different Indications. The treatment or prevention of a disease, infection or other condition in adults and the treatment or prevention of the same disease, infection or other condition in a pediatric population will not
be treated as separate Indications. 
 “Intellectual Property” means all worldwide intellectual property
rights, including without limitation, rights in and to the following: (a) Patents; (b) Marks; (c) Copyrights; (d) Know-How; (e) data exclusivity, databases and data collections, and (f) any similar, corresponding or
equivalent rights to any of the foregoing. 
 “Inventory” means all inventory related to the Seller Compounds,
wherever located, including all quantities of Seller Compound active pharmaceutical ingredient, quantities of Seller Compound drug product, finished placebo capsules, finished goods, work in process, raw materials, packaging, pre-clinical and
clinical supplies and all other materials and supplies and parts to be used or consumed by Seller or its agents in the production of finished goods whether held at any location or facility of Seller and of its Subsidiaries or in transit to Seller or
any of its Subsidiaries, in each case as of the Closing Date, except to the extent included in Excluded Assets. 

  
 6. 

 “Know-How” means inventions (whether or not patentable); invention
disclosures; proprietary processes, methods, algorithms and formulae; know-how, trade secrets, technology, proprietary information, technical data, designs, drawings, computer programs, apparatus, results of experiments, test data, including
pharmacological, toxicological and clinical data, analytical and quality control data, manufacturing data and descriptions, market data, devices, assays, chemical formulations, notes of experiments, specifications, compositions of matter, physical,
chemical and biological materials and compounds, whether in intangible, tangible, written, electronic or other form. 

“Knowledge” of Seller shall mean the actual knowledge of a fact or other matter, after a reasonable inquiry, of the
individuals listed on the attached Schedule 1.1(a) (“Knowledge Individuals”); provided, however, that if a Knowledge Individual has failed to conduct a reasonable inquiry, such Knowledge Individual shall be deemed to
have the knowledge of a fact or other matter if such Knowledge Individual would reasonably be expected to discover or otherwise become aware of that fact or matter by making a reasonable inquiry regarding such fact or matter. With respect to matters
involving Intellectual Property, Knowledge does not require that the Knowledge Individuals have conducted, obtain or have obtained any freedom-to-operate opinions or similar opinions of counsel or any Intellectual Property clearance searches, and no
knowledge of any third party Intellectual Property that would have been revealed by such inquiries, opinions or searches will be imputed to the Knowledge Individuals or the direct reports of any of the foregoing. 

“Law” means any law, statute, ordinance, rule, regulation, code, order, judgment, injunction, writ, permit license or
decree enacted, issued, promulgated, enforced or entered by a Government Entity or Self-Regulatory Organization. 

“Liabilities” means any and all debts, liabilities, commitments and obligations of any kind, character or description,
whether fixed, contingent or absolute, matured or unmatured, liquidated or unliquidated, secured or unsecured, accrued or not accrued, joint or several, due or to become due, vested or unvested, asserted or not asserted, disputed or undisputed,
known or unknown, executory, determined, determinable or otherwise, whenever or however arising (including, whether arising out of any contract or tort based on negligence or strict liability) and whether or not the same would be required by GAAP to
be reflected in financial statements or disclosed in the notes thereto. 
 “Losses” means any damages, losses,
charges, Liabilities, claims, demands, actions, suits, proceedings, payments, judgments, settlements, assessments, deficiencies, taxes, interest, penalties, and costs and expenses (including removal costs, remediation costs, closure costs, fines,
penalties and expenses of investigation and ongoing monitoring, reasonable attorneys’ fees, and out of pocket disbursements), but excluding unforeseeable, speculative, special, indirect, consequential, exemplary and punitive damages
(“Special Damages”), except in the case of Special Damages imposed on, sustained, incurred or suffered by, or asserted against, any Indemnified Party in respect of a Third Party Claim. 

“Major EU Market” means any of England, France, Germany, Italy and Spain. 

  
 7. 

 “Marks” means all United States and foreign trademarks, service marks,
trade names, service names, brand names, trade dress rights, logos, Internet domain names and corporate names, together with the goodwill associated with any of the foregoing, and all applications, registrations and renewals thereof. 

“Material Adverse Effect” means an effect that is materially adverse to the Program or would reasonably be expected to
impair the ability of Seller to consummate the Transaction or its performance of obligations under this Agreement; provided, however, that none of the following (individually or in combination) shall be deemed to constitute, or shall
be taken into account in determining whether there has been, a Material Adverse Effect: (a) any adverse effect resulting directly from general business or economic conditions, except to the extent such general business or economic conditions
have a disproportionate effect on the Program; (b) any adverse effect resulting directly from conditions generally affecting any industry or industry sector to which the Program relates, except to the extent such adverse effect has a
disproportionate effect on the Program; (c) any adverse effect resulting directly from the announcement, execution or delivery of this Agreement or the pendency or consummation of the transactions contemplated hereunder; (d) any adverse
effect resulting directly from any change in accounting requirements or principles or any change in applicable Laws or the interpretation thereof; (e) any adverse effect resulting directly from any action taken by Seller at Buyer’s
direction (other than any such action Seller is obligated to take under the terms and conditions of this Agreement); (f) any adverse effect resulting directly from any breach by Buyer of any provision of this Agreement; or (g) any adverse
data, event or outcome, arising out of or related to the Program, including pre-clinical and clinical trials, which data, event or outcome is disclosed in the Clinical Data or Regulatory Materials made available by Seller to Buyer prior to the date
of this Agreement. 
 “Milestone Payment” means any of the potential payments set forth in
Section 2.12. 
 “Myelofibrosis” means the disease or condition referred to and recognized by the
FDA as myelofibrosis as of the date of this Agreement (whether or not such disease or condition continues to be known by such name in the United States after the date of this Agreement, and whether or not any Regulatory Authority outside of the
United States refers to such disease or condition by that name or another name as of or after the date of this Agreement). 

“NDA” means any New Drug Application (as more fully defined in 21 CFR 314.5, et seq.) relating to any of the Seller
Compounds, as submitted to the FDA by any Person, including all amendments and supplements thereto. 
 “Net
Sales” means the gross amount invoiced for sales of Product by Buyer or its Affiliates or Sublicensees to Third Parties, less the following deductions from such gross amounts to the extent attributable to such Product and to the extent
actually incurred, allowed, accrued or specifically allocated: 
 (a) trade, cash and quantity discounts actually given,
credits, price adjustments or allowances actually granted customers for damaged products, returns or rejections of Products; 

  
 8. 

 (b) chargeback payments and rebates (or the equivalent thereof) for the Product granted to
group purchasing organizations, Third Party payors (including managed health care organizations) or federal, state/provincial, local and other governments, including their agencies, or to trade customers; 

(c) reasonable and customary freight, shipping insurance and other transportation charges directly related to the sale of the Product
separately stated on the invoice to the Third Party; and 
 (d) sales, value-added, excise taxes, tariffs and duties, and other
taxes and government charges directly related to the sale, to the extent that such items are included in the gross invoice price of the Product and actually borne by Buyer or its Affiliates, Sublicensees or distributors without reimbursement from
any Third Party (but not including taxes assessed against the income derived from such sale); 
 all as determined in accordance with GAAP on a
basis consistent with Buyer’s annual audited financial statements. 
 The transfer of Product between or among Buyer and
its Affiliates and Sublicensees for resale (which resale will give rise to Net Sales), use in a clinical trial, or use as free marketing samples will not be considered a sale. 
 Upon the sale or other disposal of Product, such sale, disposal or use will be deemed to constitute a sale with the consideration for the sale being the consideration for the relevant transaction and
constituting Net Sales hereunder, or if the consideration is not a monetary amount, a sale will be deemed to have occurred for a price assessed on the value of whatever consideration has been provided in exchange for the sale. Disposal of Product
for or use of Product in Clinical Trials or as free samples will not give rise to any deemed sale under this definition. For clarity, there will be no limit on the quantity of Product which may be used in clinical trials but the quantity of Product
to be given away as free samples will be such quantities customary in the industry for this sort of Product. Such amounts will be determined from the books and records of Buyer, its Affiliates and Sublicensees maintained in accordance with GAAP,
consistently applied throughout the organization. 
 In the event a Product is sold in a finished dosage form containing a
Seller Compound in combination with one or more other Independently Active Pharmaceutical Ingredients (a “Combination Product”), Net Sales, for purposes of determining Royalty Payments on such Product, will be calculated by
multiplying the Net Sales of the end-user product by the fraction A over A+B, in which A is the net selling price of the Product portion of the Combination Product when such Product is sold separately during the applicable accounting period in which
the sales of the Combination Product were made, and B is the net selling price of the other Independently Active Pharmaceutical Ingredients of the Combination Product sold separately during the accounting period in question. All net selling prices
of the Product portion of the Combination Product and of the other Independently Active Pharmaceutical Ingredients of such Combination Product will be calculated as the average net selling price of the said ingredients during the applicable
accounting period for which the Net Sales are being calculated in the particular country where the Combination Product is sold. In the event that, in any country 

  
 9. 

 
or countries, no separate sale of either such above-designated Product or such above-designated other Independently Active Pharmaceutical Ingredients of the Combination Product are made during
the accounting period in which the sale was made or if the net retail selling price for an Independently Active Pharmaceutical Ingredient cannot be determined for an accounting period, Net Sales allocable to the Product in each such country will be
determined by mutual agreement reached in good faith by the Buyer and Seller prior to the end of the accounting period in question based on an equitable method of determining same that takes into account, on a country-by-country basis, variations in
potency, the relative contribution of the Seller Compound and each other Independently Active Pharmaceutical Ingredient in the combination, and relative value to the end user of the Seller Compound and each such other Independently Active
Pharmaceutical Ingredient. The Buyer and Seller agree that, for purposes of this paragraph, drug delivery vehicles, devices, adjuvants, half-life extenders, solubilizers and excipients will not be deemed to be “Independently Active
Pharmaceutical Ingredients.” 
 “Non-Governmental Authorizations” means all licenses, permits,
certificates and other authorizations, consents, waivers, and approvals other than Governmental Authorizations. 

“Non-Hodgkin’s Lymphoma” means the disease or condition referred to and recognized by the FDA as non-Hodgkin’s
lymphoma as of the Effective Date (whether or not such disease or condition continues to be known by such name in the United States after the date of this Agreement, and whether or not any Regulatory Authority outside of the United States refers to
such disease or condition by that name or another name as of or after the date of this Agreement). 
 “Notice
Period” has the meaning set forth in Section 7.4(a). 
 “Occupational Safety and Health
Law” means any Law designed to provide safe and healthful working conditions and to reduce occupational safety and health hazards, including the Occupational Safety and Health Act, and any program, whether governmental or private (such as
those promulgated or sponsored by industry associations and insurance companies), designed to provide safe and healthful working conditions. 
 “Onyx” means Onyx Pharmaceuticals, Inc., a Delaware corporation. 

“Order” means any order, writ, injunction, judgment, decree, ruling, award, assessment or arbitration award of any
Government Entity or arbitrator. 
 “Other Seller Materials” means (i) all research and development
reports and disclosure memoranda in the possession of or controlled by Seller relating to the Seller Compounds, including, but not limited to, study reports, clinical trial related documents including consent forms, study contracts, site agreements,
manuscripts and in process publications, (ii) all of the marketing and promotional documents owned by Seller, such as customer lists, marketing and promotional plans, documents and materials, field force training manuals and materials, and the
like, to the extent relating to the Seller Compounds, (iii) all worldwide safety reports in the possession of Seller with respect to the Seller Compounds in existence as of the Closing, and (iv) all of Seller’s manufacturing
information used in connection with the Seller Compounds. 

  
 10.

 “Outbound Licenses” has the meaning set forth in
Section 3.9(d). 
 “Partnership Arrangement” means any transaction in which Buyer or its Affiliates
grants to a Third Party or Third Parties any option, license, sublicense, asset sale or assignment under or with respect to any of the Seller Compounds and/or any of the Transferred Intellectual Property. 

“Patent Term Extension” means any term extensions, supplementary protection certificates, and equivalents thereof
offering patent or patent-like protection beyond the initial term with respect to any issued Patents. 

“Patents” means all United States and foreign patents and applications therefor, including continuations, divisionals,
continuations-in-part, reexaminations or re-issues of patent applications and patents issuing thereon. 
 “Permitted
Encumbrances” means, each of the following as are immaterial, individually or in the aggregate, in amount and would not impair the ownership or use of the Transferred Assets: (a) liens for current Taxes not yet due and payable or that
are being contested in good faith by appropriate proceedings; (b) deposits or pledges made in connection with, or to secure payment of, workers’ compensation, unemployment insurance or similar programs mandated by applicable Law or
governmental regulations; (c) statutory or common Law liens in favor of carriers, warehousemen, mechanics and materialmen, to secure claims for labor, materials or supplies, and other like liens; (d) the terms and conditions of
(i) the Inbound Licenses and Outbound Licenses, (ii) licenses for off-the-shelf software or generally available software, (iii) non disclosure agreements, and (iv) materials transfer agreements on customary terms; (e) liens
in favor of customs and revenue authorities arising as a matter of Law to secure payment of customs duties in connection with the importation of goods; and (f) liens and encumbrances arising under the Assigned Contracts. 

“Person” means an individual, a corporation, a partnership, an association, a limited liability company, business trust,
joint stock company, a Government Entity, joint venture, a trust or other entity or organization. 

“Proceeding” means any action, arbitration, audit, hearing, investigation, inquiry, litigation or suit (whether civil,
criminal, administrative, judicial or investigative, whether formal or informal, whether public or private) commenced, brought, conducted or heard by or before, or otherwise involving, any Government Entity or arbitrator. 

“Product” means any pharmaceutical product containing or comprising any Seller Compound, whether or not as the sole
active ingredient and in any dosage, form or formulation. 
 “Program” means all of Seller’s activities
(including activities performed by any third Person on behalf of Seller) directed specifically to the Development and manufacture (including synthesis, formulation, finishing or packaging), use, offer for sale, sale or import of the Seller Compounds
up to the Closing Date. 
 “Program Know-How” shall mean Know-How not included in the Program Patents, which
Know-How is: (a) Controlled by Seller or its Subsidiaries immediately prior to 

  
 11.

 
the Closing; and (b) directed to the Development, manufacture (including synthesis, formulation, finishing or packaging), use, offer for sale, sale, export or import of any Seller Compound,
or otherwise primarily used or held for use in the Program; including the items listed on Exhibit B, but excluding, in any event, any Know-How that is an Excluded Asset. 

“Program Patents” shall mean: (a) the patents and patent applications listed on Exhibit C; (b) any and
all divisionals, continuations and continuations-in-part of the patents and patent applications referenced in the preceding clause (a); (c) the foreign patent applications associated with the patent applications referenced in the preceding
clauses (a) and (b); (d) the patents issued or issuing from the patent applications referenced in the preceding clauses (a) through (c); and (e) reissues, reexaminations, restorations (including supplemental protection
certificates) and extensions of any patent or patent application referenced in the preceding clauses (a) through (d). 

“Provisional Application” has the meaning set forth in Section 2.1(b). 

“Psoriasis” means the disease or condition referred to and recognized by the FDA as psoriasis as of the date of this
Agreement (whether or not such disease or condition continues to be known by such name in the United States after the date of this Agreement, and whether or not any Regulatory Authority outside of the United States refers to such disease or
condition by that name or another name as of or after the date of this Agreement). 
 “Purchase Price” has the
meaning set forth in Section 2.5. 
 “Registered IP” means those United States, international and
foreign: (a) patents and patent applications (including provisional applications); (b) registered trademarks, registered service marks, registered tradenames, applications to register trademarks, service marks or tradenames, intent-to-use
applications, or other registrations or applications related to trademarks or service marks; (c) registered copyrights and applications for copyright registration; and (d) registered domain names and applications for domain name
registrations, in each case registered to or in the name of Seller or its Subsidiaries that are included in the Transferred Intellectual Property. 
 “Regulatory Approval” means any and all approvals, licenses, registrations, or authorizations of any Regulatory Authority that are necessary to market and sell a particular Product in a
particular jurisdiction. 
 “Regulatory Authority” means the FDA, and any health regulatory authority in any
country in that is a counterpart to the FDA and holds responsibility for granting regulatory marketing approval for a Product in such country, and any successor(s) thereto, including EMA and the European Commission. 

“Regulatory Materials” means all U.S. and foreign regulatory applications, submissions and approvals (including all INDs
and NDAs, and foreign counterparts thereof, and all Regulatory Approvals) for Seller Compounds, and all correspondence with the FDA and other Regulatory Authorities relating to the Seller Compounds or any of the foregoing regulatory applications,
submissions and approvals; that, in each case, are in the possession of or controlled by, or held by or for Seller at the Closing Date, whether generated, filed or held by or for Seller or its Subsidiaries or any of their licensees (including Onyx).

  
 12.

 “Representative” means with respect to a particular Person, any director,
officer, manager, employee, agent, consultant, advisor, accountant, financial advisor, legal counsel or other Representative of that Person. 
 “Rheumatoid Arthritis” means the disease or condition referred to and recognized by the FDA as rheumatoid arthritis as of the date of this Agreement (whether or not such disease or
condition continues to be known by such name in the United States after the date of this Agreement, and whether or not any Regulatory Authority outside of the United States refers to such disease or condition by that name or another name as of or
after the date of this Agreement). 
 “Royalty Payments” means the potential royalties payable pursuant to
Section 2.13. 
 “Royalty Term” has the meaning set forth in Section 2.13. 

“SB1317” means Seller’s proprietary CDK/FLT3 inhibitor compound designated by Seller as “SB1317.”

 “SB1518” means the small molecule compound designated by Seller as “SB1518” as more particularly
described in Exhibit D attached hereto, together with all pharmaceutically active metabolites, prodrugs, acid forms, base forms, esters, salts, stereoisomers, racemates, tautomers, polymorphs, hydrates or solvates thereof. 

“SB1578” means the small molecule compound designated by Seller as “SB1578” as more particularly described in
Exhibit E attached hereto, as well as all pharmaceutically active metabolites, prodrugs, acid forms, base forms, esters, salts, stereoisomers, racemates, tautomers, polymorphs, hydrates or solvates thereof. 

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

“Securities Act” means the Securities Act of 1933, as amended. 

“Self-Regulatory Organization” means the Financial Industry Regulatory Authority, Inc., the National Futures
Association, the Chicago Board of Trade, the New York Stock Exchange, the National Association of Securities Dealers Automated Quotations Stock Market, Inc. and national securities exchange (as defined in the Exchange Act), any other securities
exchange, futures exchange, contract market, any other exchange or corporation or similar self-regulatory body or organization. 

“Seller” has the meaning set forth in the Preamble. 

“Seller Compounds” means SB1518 and SB1578. 
 “Seller Disclosure Schedule” has the meaning set forth in Article III. 

  
 13.

 “Seller Indemnified Parties” has the meaning set forth in
Section 7.3. 
 “Seller Required Approvals” means all Authorizations, notices and filings that are
required to be listed and are listed on Schedules 3.3(a) and 3.3(b). 
 “Seller Subsidiary” means
any Subsidiary of Seller. 
 “Service Contracts” has the meaning set forth in Section 3.9(f).

 “Sublicensee” means, with respect to a particular Product, a Third Party to whom Buyer has granted a
sublicense or license under any Transferred Intellectual Property, but excluding distributors. 
 “Subsidiary”
means any Person (i) whose securities or other ownership interests having by their terms the power to elect a majority of the board of directors or other persons performing similar functions are owned or controlled, directly or indirectly, by
Seller and/or one or more Subsidiaries, or (ii) whose business and policies Seller and/or one or more Subsidiaries have the power to direct. 
 “Tax Returns” means all reports and returns required to be filed with respect to Taxes. 
 “Taxes” means all federal, state or local and all foreign taxes of any kind whatsoever, including, without limitation, income, gross receipts, windfall profits, value added, severance,
property, production, sales, use, duty, license, excise, franchise, employment, withholding or similar taxes, together with any interest, additions or penalties with respect thereto and any interest in respect of such additions or penalties.

 “Termination Agreement” means that certain Termination and Separation Agreement, dated May 2, 2011, by
and between Seller and Onyx. 
 “Third Party” means any Person other than Seller or Buyer or an Affiliate of
Seller or Buyer. 
 “Third Party Acquiror” has the meaning set forth in Section 5.8(a). 

“Third Party Claim” has the meaning set forth in Section 7.4(a). 

“Trading Day” means a day on which the New York Stock Exchange is open for business. 

“Transaction” means the purchase and sale of the Transferred Assets, the assumption of the Assumed Liabilities, and the
execution and delivery of the Ancillary Agreement, each pursuant to this Agreement. 
 “Transfer Taxes” has the
meaning set forth in Section 5.5(e). 
 “Transferred Assets” has the meaning set forth in
Section 2.1. 

  
 14.

 “Transferred Intellectual Property” means (a) the Program Patents,
Program Know-How and Clinical Data, and (b) other than any Excluded Assets, any and all other Intellectual Property in or to the Seller Compounds or that is primarily used or held for use in or necessary to the Program and that is Controlled by
Seller at the Closing Date. 
 “Upfront Cash Consideration” has the meaning set forth in
Section 2.5. 
 “Upfront Consideration” has the meaning set forth in Section 2.5 

“Upfront Equity Consideration” has the meaning set forth in Section 2.5. 

“Valid Claim” means any claim within a pending, allowed or issued U.S. Patent application or Patent or pending, accepted
or issued Patent application or Patent in a jurisdiction outside the United States that has not expired, lapsed, been cancelled or abandoned, or been held unenforceable, invalid, or cancelled by a court of competent jurisdiction in an order or
decision from which no appeal has been or can be taken. For purposes of this definition, a “pending” Patent application will include any such Patent application that has been pending for five (5) or fewer years in the case of U.S.
Patent applications or eight (8) or fewer years in the case of all other Patent applications. 
 Section 1.2 Other
Terms. Other terms may be defined elsewhere in the text of this Agreement and, unless otherwise indicated, shall have such meaning throughout this Agreement. 
 Section 1.3 Other Definitional Provisions. Unless the express context otherwise requires: 
 (a) the words “hereof,” “herein” and “hereunder” and words of similar import, when used in this Agreement, shall refer to this Agreement as a whole and not to any particular
provision of this Agreement; 
 (b) the terms defined in the singular have a comparable meaning when used in the plural, and
vice versa; 
 (c) the terms “Dollars” and “$” mean United States Dollars; 

(d) References herein to a specific Section, Subsection or Schedule shall refer, respectively, to Sections, Subsections or
Schedules of this Agreement; 
 (e) wherever the word “include,” “includes,” or “including” is
used in this Agreement, it shall be deemed to be followed by the words “without limitation;” and 
 (f) references
herein to any gender includes each other gender. 
 ARTICLE II 

PURCHASE AND SALE 
 Section 2.1 Purchase and Sale of Assets. On the terms and subject to the conditions set forth herein, at the Closing, Seller shall, or shall cause one or more of its Subsidiaries to, sell,

  
 15.

 
convey, transfer, assign and deliver to Buyer or one or more of its Affiliates, and Buyer or one or more of its Affiliates shall purchase and acquire from Seller or any of its Subsidiaries all
right, title and interest, as of the Closing, in and to the following assets, whether tangible or intangible, real, personal or mixed, of every kind and description, wherever located, free and clear of all Encumbrances other than Permitted
Encumbrances (collectively, the “Transferred Assets”): 
 (a) the Seller Compounds; 

(b) all Transferred Intellectual Property, wherever held or registered, and the right to sue and collect damages related thereto for
past, present and future infringement of any of the foregoing; 
 (c) the right to claim priority to the provisional
applications listed on Schedule 2.1(c) (the “Provisional Applications”) with respect solely to any subject matter disclosed therein that is disclosed in the Program Patents, including subject matter that covers Seller
Compounds (including the composition or formulation of, or any method of making or using, the Seller Compounds), but excluding subject matter that solely covers SB1317 (including the composition or formulation of, or any method of making or using,
SB1317); 
 (d) all Regulatory Materials, including, without limitation, the items listed on Schedule 2.1(d);

 (e) the Contracts listed on Schedule 2.1(e) (the “Assigned Contracts”); 

(f) all Inventory, including, without limitation, the items listed on Schedule 2.1(f), but excluding any Inventory not
manufactured in accordance with current good manufacturing practices unless mutually agreed by Seller and Buyer in writing on or after Closing; 
 (g) all Other Seller Materials; 
 (h) all causes of action, lawsuits, judgments,
claims and demands of any nature available to or being pursued by Seller or any of its Subsidiaries to the extent related to the Seller Compounds, or (a) through (g) or (i) through (l) of this
Section 2.1, or the Assumed Liabilities or the ownership, use, function or value of any Seller Compounds or (a) through (g) and (i) through (l) of this Section 2.1, whether arising by way of counterclaim
or otherwise, whether choate or inchoate, known or unknown, contingent or noncontingent, except to the extent included in the Excluded Assets; 
 (i) all credits, prepaid expenses, deferred charges, advance payments, security or other deposits, prepaid items, duties, and right to offset, to the extent exclusively related to the Seller Compounds, or
to (a) through (h) or (j) and (l) of this Section 2.1; 
 (j) all
guaranties, warranties, indemnities and similar rights in favor of Seller or any of its Subsidiaries to the extent primarily related to any Seller Compound or to (a) through (i) or (k) and (l) of this
Section 2.1; 
 (k) all Books and Records; and 

  
 16.

 (l) all other assets of Seller that are primarily used or held for use or necessary for the
Program. 
 Notwithstanding the foregoing or anything elsewhere to the contrary, the transfer of the Transferred Assets pursuant
to this Agreement shall not include the assumption of any Liability related to the Transferred Assets unless Buyer expressly assumes that Liability pursuant to Section 2.3. 

Section 2.2 Excluded Assets. Notwithstanding anything in Section 2.1, this Section 2.2 or anywhere
else in this Agreement or the Ancillary Agreement to the contrary, from and after the Closing, Seller and its Subsidiaries shall retain all of their existing right, title and interest in and to, and there shall be excluded from the sale, conveyance,
assignment or transfer to Buyer and its Affiliates hereunder, and the Transferred Assets shall not include, the following (collectively, the “Excluded Assets”): 

(a) any asset or class of assets excluded from the definition of Transferred Assets set forth in Section 2.1 by virtue of the
limitations expressed therein; 
 (b) all Contracts (including the Termination Agreement) other than the Assigned Contracts;

 (c) all rights of Seller under this Agreement and the Ancillary Agreement; 

(d) all cash, cash equivalents, accounts receivable, marketable securities and intercompany accounts receivable of Seller; 

(e) all minute books, stock books, Tax returns and similar corporate records of Seller other than the Books and Records; 

(f) all assets (including, without limitation, Intellectual Property) of Seller that are both (i) not primarily used or held for use
in the Program and (ii) not necessary for the Program, including to the extent applicable, without limitation, all assets (including, without limitation, Intellectual Property) of Seller primarily used or held for use in Seller’s mTOR/PI3K
inhibitor program, mTOR inhibitor program, HDAC inhibitor program, and CDK/FLT3 inhibitor program (including SB1317); 
 (g) the
right to claim priority to the Provisional Applications solely with respect to any subject matter disclosed therein that is disclosed in the Patents listed on Schedule 3.9(b)-2, including subject matter that solely covers SB1317
(including the composition or formulation of, or any method of making or using, SB1317), but excluding subject matter that solely covers Seller Compounds (including the composition or formulation of, or any method of making or using, Seller
Compounds); 
 (h) all rights under insurance policies, including, without limitation, all claims, refunds and credits due or to
become due under such policies; 
 (i) any refund of Tax liabilities of Seller relating to any pre-Closing period; 

  
 17.

 (j) all leasehold interests and, other than the Transferred Assets, all biological or
chemical materials, machinery, equipment, furniture, furnishings, fixtures and other tangible property; and 
 (k) any asset
identified on Schedule 2.2(k). 
 Section 2.3 Assumption of Liabilities. On the terms and subject to the
conditions set forth herein, at the Closing, Buyer shall assume and agrees to discharge or perform when due the following obligations and liabilities, whether known, unknown, accrued, absolute, matured, unmatured, contingent or otherwise, but only
to the extent arising out of the ownership or use of the Transferred Assets after the Closing Date and not on or before the Closing Date (the “Assumed Liabilities”): 

(a) all obligations and other liabilities of Seller (i) under the Assigned Contracts, but only to the extent arising out of
obligations performed or required to be performed by Buyer under the Assigned Contracts after the Closing and not on or before the Closing Date, or (ii) exclusively arising out of or relating to the ownership or use of the Transferred Assets or
the operation of the Program by or on behalf of Buyer after the Closing Date and not on or before the Closing Date; and 
 (b)
all Liabilities for Taxes exclusively arising out of or relating to the use, ownership, sale or lease of any of the Transferred Assets or the operation of the Program by Buyer after the Closing Date and not on or before the Closing Date. 

For the avoidance of doubt, it is hereby clarified that Buyer’s assumption of liabilities under this Section 2.3 shall
be considered part of the consideration paid for the Transferred Assets. Neither Buyer nor its Affiliates will assume or have any responsibility of any nature with respect to any other Liability (including any Liability relating to the Transferred
Assets) that exists, or arises out of the Closing or the operation or ownership of the Transferred Assets, on or prior to the Closing. For the avoidance of doubt, the Assumed Liabilities shall not include any obligations under the Termination
Agreement. 
 Section 2.4 Excluded Liabilities. Seller and its Affiliates shall retain and be responsible for all
Excluded Liabilities and shall, and shall cause each of its Affiliates to, pay and satisfy in full any Excluded Liabilities. 

Section 2.5 Purchase Price. (a) On the terms and subject to the conditions set forth herein, in consideration of the
sale of the Transferred Assets, at the Closing, in addition to the assumption of the Assumed Liabilities, (i) Buyer shall pay to Seller an amount in cash equal to $15,000,000, less the Deposit (the “Upfront Cash
Consideration”), and (ii) Buyer shall issue to Seller shares of preferred stock automatically convertible into common stock of Buyer in the amount of $15,000,000 (the “Upfront Equity Consideration,” and together with
the Upfront Cash Consideration, the “Upfront Consideration”), and (b) Seller shall receive the contingent right to potentially receive the Milestone Payments and Royalty Payments (the Upfront Consideration, together with the
Milestone Payments and Royalty Payments is referred to collectively as the “Purchase Price”). The value of the Buyer preferred stock issued for the purpose of the Upfront Equity Consideration shall be determined based on the
consolidated closing bid price per share 

  
 18.

 
of Buyer common stock on Nasdaq immediately prior to the signing of this Agreement. The shares of Buyer’s preferred stock comprising the Upfront Equity Consideration will not be registered
under the Securities Act, but the common stock issuable upon conversion of such shares will be covered by the Ancillary Agreement, to be executed and delivered at Closing. 
 Section 2.6 Closing. The Closing shall take place at the offices of O’Melveny & Myers, LLP, San Francisco, California at 10:00 A.M. Pacific time, on the second
(2nd) Business Day following the date on which the conditions set forth in Section 6.1 and Section 6.2 have been satisfied or waived (other than those conditions that by their nature are to be satisfied at the Closing
but subject to the fulfillment or waiver of those conditions) but no later than forty-five (45) days after the date of this Agreement, or at such other time and place as the parties hereto may mutually agree in writing. The date on which the
Closing occurs is called the “Closing Date.” 
 Section 2.7 Deposit. The parties acknowledge that
Buyer wishes to have up to forty-five (45) days from the date of this Agreement to the Closing Date in order to provide Buyer with the opportunity to verify the transferability (subject only to Permitted Encumbrances) of the Transferred Assets
and to ascertain the location of all tangible Transferred Assets, with Seller using commercially reasonable best efforts to cooperate with and assist Buyer with the foregoing. Accordingly, and in consideration of Seller accommodating Buyer’s
desire to have up to forty-five (45) days from the date of this Agreement to the Closing Date, Buyer shall pay to Seller no later than the next Business Day after the date of this Agreement an amount in cash equal to $2,000,000 (the
“Deposit”) in immediately available funds by wire transfer to an account or accounts which have been designated by Seller. The Deposit shall be non-refundable, regardless of when or whether the Closing occurs, unless the Closing has
not occurred within forty-five (45) days from the date of this Agreement as a result of (i) a material breach by Seller of any covenant under this Agreement, (ii) the failure of any of the conditions to Buyer’s obligation to
effect the Closing, as set forth in Section 6.1, or (iii) the failure of Seller stockholders to approve the Transaction. The Deposit shall be fully creditable toward the Upfront Cash Consideration. 

Section 2.8 Allocation of Purchase Price. The Purchase Price shall be allocated in accordance with Schedule 2.8.
After the Closing, the parties shall make consistent use of the allocation, fair market value and useful lives specified in Schedule 2.8 for all Tax purposes and in all filings, declarations and reports with the appropriate taxing
authority. In any Proceeding related to the determination of any Tax, neither Buyer nor Seller nor any of their Affiliates shall contend or represent that such allocation is not a correct allocation. 

Section 2.9 Deliveries by Buyer. At the Closing, Buyer shall deliver to Seller the following: 

(a) the Upfront Cash Consideration, less the Deposit, in immediately available funds by wire transfer to an account or accounts which
have been designated by Seller at least two (2) Business Days prior to the Closing Date; 
 (b) share certificates bearing
appropriate legends representing the Upfront Equity Consideration; 

  
 19.

 (c) such instruments of assumption and other instruments or documents, in form and substance
reasonably acceptable to Seller, as may be necessary to effect Buyer’s assumption of the Assumed Liabilities and the effective assignment of any Assigned Contracts; 
 (d) a duly executed counterpart of the Ancillary Agreement; 
 (e) evidence of the
obtaining of or the filing with respect to, the Buyer Required Approvals; 
 (f) the certificate to be delivered pursuant to
Section 6.2(e); and 
 (g) such other customary instruments of transfer, assumptions, filings or documents, in form
and substance reasonably satisfactory to Seller, as may be required to give effect to this Agreement. 
 Section 2.10
Deliveries by Seller. At the Closing, Seller shall deliver, or cause to be delivered, to Buyer the following: 
 (a)
bills of sale or other appropriate documents of transfer, in form and substance reasonably acceptable to Buyer, transferring the Inventory included in the Transferred Assets to Buyer; 

(b) assignments, in form and substance reasonably acceptable to Buyer and, if applicable, as required by any Government Entity with which
Seller’s or any of its Subsidiaries’ rights to any Transferred Intellectual Property, Regulatory Materials, Books and Records or Other Seller Materials have been filed, submitted or held, assigning to Buyer the Transferred Intellectual
Property, Regulatory Materials or Other Seller Materials; 
 (c) assignment and assumption agreements, in form and substance
reasonably acceptable to Buyer and Seller, assigning to Buyer all rights of Seller and its Subsidiaries in and to all of the Assigned Contracts, exclusive of any Excluded Liabilities; 

(d) a duly executed counterpart of the Ancillary Agreement; 
 (e) evidence of the obtaining of or the filing with respect to, the Seller Required Approvals; 
 (f) the certificate to be delivered pursuant to Section 6.1(f); and 

(g) such other customary instruments of transfer, assumptions, filings or documents, in form and substance reasonably satisfactory to
Buyer, as may be required to give effect to this Agreement and the Ancillary Agreement. 
 Section 2.11 Affiliate
Acquisitions. Notwithstanding anything to the contrary contained in this Agreement or the Ancillary Agreement or otherwise, Buyer may elect to have any or all of the Transferred Assets conveyed or otherwise transferred to, or any of the Assumed
Liabilities assumed by, one or more of its Affiliates so long as no such election results in any greater cost or obligation than Seller or any of its Affiliates would otherwise have had. 

  
 20.

 Section 2.12 Milestone Payments. Following the first occurrence of each of the
events set forth in the table below (each, a “Milestone Event”) achieved by Buyer, or any of its Affiliates or Sublicensees, Buyer shall pay to Seller the amount corresponding to such Milestone Event no later than (i) **
Business Days after the achievement by Buyer of the corresponding Milestone Event in the case of a regulatory Milestone Event, or (ii) ** days after the end of the applicable Buyer fiscal year in the case of a worldwide Net Sales Milestone
Event; provided, however, that (i) there will only be one such potential Milestone Payment for each of the Milestone Events listed below, and (ii) any Milestone Event below may be achieved by the same Product that achieved
any other Milestone Event or by a different Product, provided that each Milestone Payment shall be paid only one time, and only for the first achievement of the applicable Milestone Event by the first Product to achieve such Milestone Event.

  

					
	 U.S. Regulatory Milestone Payments:
	  			
	 Regulatory Approval for a Product in the United States for any Indication (“First U.S.
Indication”):
	  	$	*	* 
		
	 Regulatory Approval for a Product in the United States for any Indication other than the First U.S. Indication (“Second
U.S. Indication”):
	  	$	*	* 
		
	 Regulatory Approval for a Product in the United States for any Indication other than the First U.S. Indication and the Second
U.S. Indication:
	  	$	*	* 
		
	 EU Regulatory Milestone Payments:
	  			
	 Regulatory Approval of a Product in the EU or any Major EU Market for any Indication (“First EU
Indication”):
	  	$	*	* 
		
	 Regulatory Approval of a Product in the EU or any Major EU Market for any Indication other than the First EU Indication
(“Second EU Indication”):
	  	$	*	* 
		
	 Regulatory Approval of a Product in the EU or any Major EU Market for any Indication other than the First EU Indication and the
Second EU Indication
	  	$	*	* 
		
	 Japan Regulatory Milestone Payments:
	  			
	 Regulatory Approval of a Product in Japan for any Indication (“First Japan Indication”):
	  	$	*	* 
	 Regulatory Approval of a Product in Japan for any Indication other than the First Japan Indication (“Second Japan
Indication”):
	  	$	*	* 
	 Regulatory Approval of a Product in Japan for any Indication other than the First Japan Indication and the Second Japan
Indication:
	  	$	*	* 

  

	**	Indicates that certain information contained herein has been omitted and filed separately with the Securities and Exchange Commission. Confidential treatment has been
requested with respect to the omitted portions. 

  
 21.

					
	 Worldwide Net Sales Milestones:
	  			
	 First time worldwide Net Sales of a Product reach $100 million in any fiscal year of Buyer:
	  	$	*	* 
	 First time worldwide Net Sales of a Product reach $250 million in any fiscal year of Buyer:
	  	$	*	* 
	 First time worldwide Net Sales of a Product reach $500 million in any fiscal year of Buyer:
	  	$	*	* 

 Section 2.13 Royalty Payments. 

(a) Royalties. During the applicable royalty term provided in Section 2.13(b) below (the “Royalty
Term”), in addition to the Milestone Payments and subject to the achievement of one or more of the Milestone Events, Buyer will pay to Seller royalties on Net Sales of the Product in each fiscal year of Buyer at the incremental rates set
forth below. Royalties payable under this Section 2.13 will be payable only once with respect to a particular unit of the Product and will be paid only once regardless of the number of Patents applicable to such Product. 

 

					
	 Worldwide Net Sales of a Product up to and including $** in any fiscal year of Buyer:
	  	 	*	*% 
		
	 Worldwide Net Sales of a Product over $** and up to and including $** in any fiscal year of Buyer:
	  	 	*	*% 
		
	 Worldwide Net Sales of a Product over $** in any fiscal year of Buyer:
	  	 	*	*% 

 (b) Royalty Term. On a Product-by-Product and country-by-country basis, Buyer’s royalty
payment obligations under Section 2.13(a) with respect to a Product in a country will commence on the date of the first commercial sale of the Product in such country and expire on the later of (i) expiration of the last-to-expire
Valid Claim of the Program Patents that covers the manufacture, use, sale, offer for sale, or import of such Product in such country, and (ii) ** years after the first commercial sale of such Product in such country. 

(c) Taxes. If a Law requires Buyer to withhold Taxes of any type from Royalty Payments or Milestone Payments payable hereunder to
Seller, Buyer shall (i) deduct such Tax from the payment made to Seller, (ii) timely pay such Taxes for and on behalf of Seller to the proper Government Entity, and (iii) furnish Seller with documentation of such payment within thirty
(30) days following such payment. 
  

	**	Indicates that certain information contained herein has been omitted and filed separately with the Securities and Exchange Commission. Confidential treatment has been
requested with respect to the omitted portions. 

  
 22.

 (d) Royalty Reports and Payment. Within forty-five (45) calendar days following
the end of each calendar quarter during the period in which royalties accrue, Buyer shall provide Seller with a report containing the following information for the applicable calendar quarter: the amount of gross sales of Product on a
country-by-country basis, an itemized calculation of Net Sales showing deductions provided for in the definition of “Net Sales,” a calculation of the royalty payment due on such sales, an accounting of the number of units and prices for
Product sold, the exchange rate for each country in which Product was sold, and any other information reasonably required by Seller for the purpose of calculating royalties and Net Sales Milestone Payments due under this Agreement. Any Royalty
Payments due to Seller will be paid on the date of delivery of such report. In the event that either party determines that the calculation of Net Sales for a calendar quarter deviates from the amounts previously reported to Seller for any reason
(such as, on account of additional amounts collected or Product returns), Buyer and Seller shall reasonably cooperate to reconcile any such deviations to the extent necessary under applicable legal or financial reporting requirements. 

(e) No Projections. Buyer and Seller acknowledge and agree that nothing in this Agreement or the Ancillary Agreement shall be
construed as representing an estimate or projection of anticipated sales of any Product, and that the Net Sales levels set forth in Section 2.13 or elsewhere in this Agreement or the Ancillary Agreement or that have otherwise been
discussed by the Parties are merely intended to define the royalty obligations to Seller in the event such Net Sales levels are achieved. NEITHER BUYER NOR SELLER MAKES ANY REPRESENTATION OR WARRANTY, EITHER EXPRESS OR IMPLIED, THAT IT WILL BE ABLE
TO SUCCESSFULLY COMMERCIALIZE ANY PRODUCT OR, IF COMMERCIALIZED, THAT ANY PARTICULAR NET SALES LEVEL OF SUCH PRODUCT WILL BE ACHIEVED. 
 Section 2.14 Diligence. 
 (a) Buyer shall use Commercially Reasonable
Efforts to cause all of the Milestone Events to be achieved. “Commercially Reasonable Efforts” shall mean, with respect to Buyer’s efforts to cause the Milestone Events to occur, a level of efforts consistent with the efforts
Buyer typically devotes to a product of similar market potential, resulting from its own research efforts, at a similar stage in its development or product life, taking into account conditions then prevailing, including its safety and efficacy,
product profile, cost to develop, cost and availability of supply, the time required to complete development, the competitiveness of the marketplace, the Buyer’s patent position with respect to such product (including the Buyer’s ability
to obtain or enforce, or have obtained or enforced, such patent rights), the third-party patent landscape relevant to the product, the regulatory structure involved, the likelihood of regulatory approval, the anticipated or actual profitability of
the applicable product, and other technical, legal, scientific and medical considerations. Buyer shall not consolidate with or merge into any other Person, assign, convey, transfer, license or lease its properties and assets substantially as an
entirety to any Person or assign, convey, transfer, license or lease substantially all the Transferred Assets or substantially all the assets of the Program as operated by Buyer following the Closing Date, to any Person, unless: (i) such Person
has expressly assumed the obligation to pay all Royalty Payments when due and each previously unpaid Milestone Payment when due and the obligation to perform every other duty and covenant of Buyer under this Agreement; provided, however, that
any such Person that receives rights in 

  
 23.

 
respect of one or more geographic regions, but not the entire world, will not be liable for the payment of Royalty Payments with respect to Net Sales outside of such geographic region(s),
worldwide Net Sales Milestone Payments, or Regulatory Milestone Payments for Milestone Events occurring outside of such geographic region(s); and (ii) in the event Buyer conveys, transfers, licenses or leases its properties and assets in
accordance with the terms and conditions of this Section 2.14(a), Buyer shall remain liable for the payment of Royalty Payments when due and each previously unpaid Milestone Payment when due and the performance of every duty and covenant
of Buyer under this Agreement. 
 (b) Buyer’s obligations under Section 2.14(a) shall terminate and be of no
further effect as of expiration of all Royalty Payment obligations of Buyer under Section 2.13, provided that if there has been no commercial sale of a Product before expiration of the last-to-expire Valid Claim of the Program Patents,
then Buyer’s obligations under Section 2.14(a) shall terminate and be of no further effect as of expiration of the last-to-expire Valid Claim of the Program Patents. 

Section 2.15 Update Reports. Until the earlier of (a) termination of diligence obligations pursuant to
Section 2.14(b), and (b) such time as all Milestone Payments have been paid in full, Buyer shall send to Seller a status report of the development, manufacture and commercialization of Seller Compounds and Products and the status of
efforts to achieve the Milestone Events in January and June of each year (each such report, an “Update Report”), with the first such Update Report due in January 2013. Within thirty (30) days after receipt of an
Update Report, if Seller requests a meeting with representatives of Buyer to discuss such report, Buyer shall use its commercially reasonable best efforts to make available for such a meeting, upon reasonable notice during regular business hours,
those of its employees and representatives as are responsible for the applicable activities set forth in the Update Report. 

Section 2.16 Exchange Rate; Manner and Place of Payment. Except for the Upfront Equity Consideration and the portion of any
Milestone Payment that Buyer elects to pay in preferred or common stock in accordance with Section 2.19, all payments hereunder shall be payable in U.S. dollars. With respect to each quarter, for countries other than the United States,
whenever conversion of payments from any foreign currency shall be required, such conversion shall be made at the rate of exchange used throughout the accounting system of Buyer and its Affiliates for such quarter. All payments owed under this
Agreement shall be made by wire transfer to a bank and account designated in writing by Seller, unless otherwise specified in writing by Seller. 
 Section 2.17 Audit. Until the expiration of all royalty payment obligations hereunder and for a period of three (3) years thereafter, Buyer shall keep complete and accurate records
pertaining to the sale or other disposition of Products by Buyer, its Affiliates and Sublicensees in sufficient detail to permit Seller to confirm the accuracy of the royalties and Net Sales Milestone Payments due hereunder. Seller shall have the
right to cause an independent, certified public accountant reasonably acceptable to Buyer to audit such records to confirm Net Sales and royalties for a period covering not more than the preceding three (3) fiscal years. Buyer may require such
accountant to execute a reasonable confidentiality agreement with Buyer prior to commencing the audit. Such audits may be conducted during normal business hours upon reasonable prior written notice to Buyer, but no more than frequently than once per
year. No 

  
 24.

 
accounting period of Buyer shall be subject to audit more than one time by Seller, unless after an accounting period has been audited by Seller, Buyer restates its financial results for such
accounting period, in which event Seller may conduct a second audit of such accounting period in accordance with this Section. Prompt adjustments (including remittances of underpayments or overpayments disclosed by such audit) shall be made by the
parties to reflect the results of such audit. Seller shall bear the full cost of such audit unless such audit discloses an underpayment by Buyer of 5% or more of the amount of royalties due under this Agreement, in which case Buyer shall bear the
full cost of such audit. 
 Section 2.18 Late Payments. In the event that any payment due under this Agreement is
not made when due, the payment shall accrue interest from the date due at the rate of the one-month London Interbank Offered Rate (“LIBOR”) as quoted in the Wall Street Journal (or if it no longer exists, similarly authoritative
source) plus ** basis points; provided, however, that in no event shall such rate exceed the maximum legal annual interest rate. The payment of such interest shall not limit Seller from exercising any other rights it may have as a
consequence of the lateness of any payment. 
 Section 2.19 Milestone Cash or Stock Election. At the election of
Buyer, Buyer may pay up to 50% of any Milestone Payment under Section 2.12 through the issuance of shares of common stock or shares of preferred stock automatically convertible into common stock of Buyer, provided that, at the
time of any such issuance, (a) such shares have been registered under the Securities Act pursuant to a registration statement on Form S-1 or such other registration statement as may be permitted or required by SEC rules and regulations, filed
by Buyer (the “Form S-1”), at Buyer’s sole expense, (b) the Form S-1 is effective under the Securities Act and is not the subject of any stop order or proceedings seeking a stop order, and (c) Buyer’s common
stock is listed for trading on the NASDAQ National Market or another exchange. The value of preferred stock or common stock issued for this purpose shall be determined based on the five-day volume weighted average purchase price for shares of Buyer
common stock on the NASDAQ National Market (or, if the primary exchange on which the Buyer common stock is listed is not the NASDAQ National Market, such other exchange on which Buyer’s common stock is then listed) on the five Trading Days
immediately prior to the date of issuance of the common stock or preferred stock. In the event Buyer’s common stock is not listed on the NASDAQ National Market or another exchange at the time of achievement of any Milestone Event, the
corresponding Milestone Payment shall be paid entirely in cash. In addition, if any issuance of Buyer’s common stock or preferred stock pursuant to this Article II would require stockholder approval under the rules of the NASDAQ National
Market or any other exchange on which the shares are then listed, and such approval has not been obtained, then the applicable Milestone Payment shall be paid entirely in cash. 

Notwithstanding any other provision of this Agreement to the contrary, in no event shall the issuances of Buyer’s common stock or
preferred stock in connection with the Transaction, whether pursuant to Section 2.5 or Section 2.12 or otherwise, in the aggregate equal or exceed 20% of Buyer’s common stock or voting power outstanding as of the date of
this Agreement, except with the prior approval of Buyer’s stockholders. 
  

	**	Indicates that certain information contained herein has been omitted and filed separately with the Securities and Exchange Commission. Confidential treatment has been
requested with respect to the omitted portions. 

  
 25.

 Section 2.20 Set-off. Buyer shall have the set-off rights set forth in
Section 7.12 in respect of the Royalty Payments and Milestone Payments. 
 ARTICLE III 

REPRESENTATIONS AND WARRANTIES OF SELLER 
 Except as set forth in the corresponding Section of the disclosure schedule delivered by Seller to Buyer at the execution and delivery of this Agreement (the “Seller Disclosure Schedule”)
(which shall be arranged in sections corresponding to the sections contained in this Article III and the disclosure in any Section shall qualify such sections), Seller represents and warrants to Buyer that all of the following statements
are true, accurate and correct: 
 Section 3.1 Organization and Qualification. Seller is a corporation duly
organized, validly existing and in good standing under the Laws of Singapore and has all requisite power and authority to own, lease and operate the assets it purports to own or use, to carry on the business as currently conducted. Seller is duly
qualified to do business and is in good standing as a foreign corporation in each jurisdiction where the ownership or operation of the Transferred Assets or the conduct of its requires such qualification, except for failures to be so qualified or in
good standing, as the case may be, that would not, individually or in the aggregate, have a Material Adverse Effect. Schedule 3.1 sets forth a complete and accurate list of Seller’s jurisdiction of incorporation and any other
jurisdiction in which it is qualified to do business as a foreign corporation. 
 Section 3.2 Corporate
Authorization. Seller has full power and authority to execute and deliver this Agreement and the Ancillary Agreement, and to perform its obligations hereunder and thereunder. The execution, delivery and performance by Seller of this Agreement
and the Ancillary Agreement have been duly and validly authorized and no additional corporate or shareholder authorization or consent is required in connection with the execution, delivery and performance by Seller of this Agreement or the Ancillary
Agreement. 
 Section 3.3 Consents and Approvals. Except as set forth on Schedule 3.3(a), no
Authorization, notice or filing is required to be obtained by Seller or any of its Subsidiaries from, or to be given by Seller or any of its Subsidiaries to, or made by Seller or any of its Subsidiaries with, any Person, including any Government
Entity or Self-Regulatory Organization, in connection with the execution, delivery and performance by Seller or any of its Subsidiaries of this Agreement and the Ancillary Agreement. Except as set forth on Schedule 3.3(b), no
Authorization, notice or filing is required to be obtained by Seller or any of its Subsidiaries from, or to be given by Seller or any of its Subsidiaries to, or made by Seller or any of its Subsidiaries with, any Person which is not a Government
Entity or Self-Regulatory Organization in connection with the execution, delivery and performance by Seller or any of its Subsidiaries of this Agreement and the Ancillary Agreement. 

Section 3.4 Non-Contravention. The execution, delivery and performance by Seller of this Agreement and the Ancillary
Agreement, and the consummation of the transactions contemplated hereby and thereby, do not and will not (i) violate any provision of the Governing Documents of Seller or any of its Subsidiaries, or any resolution adopted by the board of
directors or the Shareholders of Seller, (ii) assuming the receipt of all Non-Governmental 

  
 26.

 
Authorizations held by Seller or any of its Subsidiaries or related to the Transferred Assets and the making of the notices and filings set forth on Schedule 3.3(b), contravene,
conflict with, or result in the violation or breach of or constitute a default under, or result in the termination, cancellation, modification or acceleration (whether after the filing of notice or the lapse of time or both) of any right or
obligation of Seller or any of its Subsidiaries under, or result in a loss of any benefit to which Seller or any of its Subsidiaries is entitled under, any Contract, or result in the imposition or creation of any Encumbrance (other than a Permitted
Encumbrance) upon or with respect to any of the Transferred Assets, or (iii) assuming the receipt of all Governmental Authorizations held by Seller or any of its Subsidiaries or related to the Transferred Assets and the making of notices and
filings set forth on Schedule 3.3(a) or required to be made or obtained by Buyer, violate or result in a breach or constitute a default under or give any Government Entity or other Person the right to challenge any of the transactions
contemplated hereby or to exercise or obtain any relief under any Law to which Seller or any of its Subsidiaries is subject, or under any Governmental Authorization held by Seller or any of its Subsidiaries or related to the Transferred Assets.

 Section 3.5 Binding Effect. This Agreement and the Ancillary Agreement, when executed and delivered by Buyer and
the other parties thereto, constitute valid and legally binding obligations of Seller, enforceable against Seller in accordance with their respective terms, except as enforcement may be limited by general equitable principles and the exercise of
judicial discretion in accordance with such principles and subject to the effect of any applicable bankruptcy, moratorium, insolvency, reorganization or other similar law affecting the enforceability of creditors’ rights generally
(collectively, the “Bankruptcy Exception”). 
 Section 3.6 Litigation and Claims. Except as set
forth on Schedule 3.6: 
 (a) There is no civil, criminal or administrative action, suit, demand, claim, hearing or
proceeding pending, or to the Knowledge of Seller threatened or investigation pending, by, against or otherwise relating to Seller or any of its Subsidiaries in connection with the Transferred Assets, or the Transaction and, there is no reasonable
basis for the same. 
 (b) None of the Transferred Assets is subject to any Order. 

Section 3.7 Taxes. Except as set forth on Schedule 3.7, (a) all Tax Returns with respect to the Transferred
Assets that are required to be filed on or before the Closing have been or will have been duly filed and all Taxes that are due with respect to the Transferred Assets have been or will have been duly and timely paid, (b) all Taxes that are
required to have been withheld with respect to the Transferred Assets have been withheld and timely paid to the appropriate authorities in compliance with all Tax withholding provisions (including income, social security and employment Tax
withholding for all types of compensation), (c) there is no lien for Taxes upon any of the Transferred Assets nor, to the Knowledge of Seller, is any taxing authority in the process of imposing any lien for Taxes on any of the Transferred
Assets, other than liens for Taxes that are not yet due and payable, (d) no issues that have been raised by the relevant taxing authority in connection with any examination of the Tax Returns referred to in paragraph (a) hereof are
currently pending, and all deficiencies asserted or assessments made, if any, as a result of such examinations have been paid in full, (e) none of Seller or any of its Subsidiaries that transfer assets pursuant to this Agreement is a party to
any Contract with any 

  
 27.

 
Person under which Seller or such Affiliate has agreed to share any Tax Liability, (f) no transaction contemplated by this Agreement is subject to withholding, (g) none of Seller or any
of its Subsidiaries that transfer assets pursuant to this Agreement has any actual or potential Liability under Treasury Regulations Section 1.1502-6 (or any comparable or similar provision of federal, state, local or foreign Law), as a
transferee or successor, pursuant to any contractual obligation, or otherwise for any Taxes of any Person, (h) Schedule 3.7(h) sets forth each jurisdiction in which Seller or its Subsidiaries files, is required to file or has been
required to file a Tax Return or is or has been liable for any Taxes on a “nexus” basis, in each case with respect to the Transferred Assets, and (i) no claim has ever been made by a Taxing authority in a jurisdiction other than those
set forth on Schedule 3.7(h) asserting that any of Seller or any of its Subsidiaries is or may be subject to Taxes assessed by such jurisdiction with respect to the Transferred Assets. 

Section 3.8 Compliance with Laws. Except as disclosed on Schedule 3.8, (a) during the past three years
Seller’s business related to the Program has been and currently is being conducted in compliance in all material respects with all Laws that are or were applicable to Seller or the conduct or operations of Seller’s business related to the
Program or the ownership or use of any of the Transferred Assets, (b) neither Seller nor any of its Subsidiaries has received any notice alleging any violation under any applicable Law related to the conduct or operation of Seller’s
business related to the Program, and (c) Seller has all Governmental Authorizations necessary for the conduct of Seller’s business related to the Program as currently conducted. 

Section 3.9 Intellectual Property. 
 (a) Seller is the exclusive owner of all right, title and interest in and to the Transferred Intellectual Property, free and clear of all Encumbrances other than Permitted Encumbrances. The Transferred
Intellectual Property constitutes all the Intellectual Property Controlled by Seller that is primarily used or held for use in or necessary for the Program. The Transferred Intellectual Property, together with any Intellectual Property licensed to
Buyer pursuant to Section 5.17(a), constitutes all the Intellectual Property Controlled by Seller that is used or held for use in or necessary for the Program. Seller has the full right, power and authority to grant to Buyer and its
Affiliates the licenses set forth in Section 5.17(a), and the grant of such license does not and will not contravene or conflict with any Contract to which Seller or any Seller Subsidiary is a party or by which it is bound. Neither
Seller nor any Seller Subsidiary has transferred ownership of, or granted any exclusive license of, or exclusive right to use, or authorized the retention of any exclusive rights to use or joint ownership of any Transferred Intellectual Property to
any other Person. 
 (b) Schedule 3.9(b)-1 sets forth a complete and accurate list of all Patents Controlled by
Seller that claim inventions that are primarily used or held for use in the Program (the “Listed Patents”); and Schedule 3.9(b)-2 sets forth a complete and accurate list of Patents Controlled by Seller that may be
subject to the licenses granted to Buyer and its Affiliates pursuant to the terms of Section 5.17(a) to the extent provided in such Section; including, in each case, the title, jurisdiction(s) in which each Patent was or is filed, and
the respective application number, patent number (if any), filing date and issuance date (if any). Other than the Patents listed in Schedules 3.9(b)-1 and 3.9(b)-2, Seller does not own or Control any Patents or other Registered IP
that is used or held for use in or necessary for the Program. 

  
 28.

 (i) All Listed Patents have been duly filed and maintained, including the timely submission
of all necessary filings and fees in accordance with the legal and administrative requirements of the appropriate Government Entity, and have not lapsed (other than lapsed provisional applications that have been converted to non provisional
applications), expired or been abandoned. Neither Seller nor any Seller Subsidiary has received any written notice of any inventorship challenge, interference, invalidity or unenforceability with respect to any Listed Patent. All assignments of the
Listed Patents to Seller and proper documentation of chain of title thereto have been executed in writing and properly recorded with the applicable Government Entity, including, but not limited to, the United States Patent and Trademark Office, in
the name of Seller. 
 (ii) There are no actions that are required to be taken within ninety (90) days of the date hereof
with respect to the Listed Patents, including the payment of any registration, maintenance or renewal fees or the filing of any response to the United States Patent and Trademark Office actions or foreign equivalents. 

(iii) Seller has provided or otherwise made available to Buyer current, true and complete copies of all Listed Patents. 

(c) The Seller has not received any written communication from any Person challenging or threatening to challenge, nor is Seller a party
to any pending and served proceeding or, to Seller’s Knowledge, pending but not served proceeding or threatened proceeding, in which any Person is (i) contesting the right of Seller or Seller Subsidiary to use, exercise, sell, license,
transfer or dispose of any Transferred Intellectual Property or any Seller Compound, or (ii) challenging the validity or enforceability of any Listed Patent or the ownership of any Transferred Intellectual Property. Neither Seller nor any
Seller Subsidiary is subject to any outstanding order, judgment, decree or stipulation restricting in any manner the licensing, assignment, transfer, use or conveyance of the Transferred Intellectual Property by Seller or any Seller Subsidiary.

 (d) Schedule 3.9(d) lists all licenses, sublicenses and other agreements to which Seller or any Seller Subsidiary
is a party and pursuant to which any third party is granted (i) any right to make, have made, use, sell, have sold, offer for sale, import or otherwise distribute any Seller Compound, or to otherwise Exploit any Transferred Intellectual
Property, (ii) any covenant not to assert/sue or other immunity from suit under or any other rights to, any Transferred Intellectual Property, (iii) any ownership right or title, whether actual or contingent, to any Transferred
Intellectual Property, or (iv) an option or right of first refusal relating to any Transferred Intellectual Property (collectively, “Outbound Licenses”); provided that Schedule 3.9(d) need not list (1) non
disclosure agreements, (2) materials transfer agreements on customary terms, or (3) Service Contracts. Seller has delivered or otherwise made available to Buyer accurate and complete copies of all Outbound Licenses, and Seller or the
applicable Seller Subsidiary is in compliance with all material terms and conditions of all Outbound Licenses. 
 (e)
Schedule 3.9(e) lists all licenses, sublicenses and other agreements to which Seller or any Seller Subsidiary is a party and pursuant to which any third party grants to Seller or any Seller Subsidiary (i) any right to make, have
made, use, sell, have sold, offer for sale, import or otherwise distribute any Seller Compound, or to otherwise Exploit any 

  
 29.

 
Transferred Intellectual Property, (ii) any covenant not to assert/sue or other immunity from suit under or any other rights to, any Intellectual Property claiming or covering the
manufacture, use, sale, offer for sale, or import of any Seller Compound or any other Transferred Intellectual Property, (iii) any ownership right or title, whether actual or contingent, to any Intellectual Property claiming or covering the
manufacture, use, sale, offer for sale, or import of any Seller Compound, or any other Transferred Intellectual Property, or (iv) an option or right of first refusal relating to any Intellectual Property claiming or covering the manufacture,
use, sale, offer for sale, or import of any Seller Compound, or any other Transferred Intellectual Property (collectively, “Inbound Licenses”); provided that Schedule 3.9(e) need not list, and Inbound Licenses do not
include, (1) licenses for off-the-shelf software or generally available software; (2) non disclosure agreements, (3) materials transfer agreements on customary terms, (4) Service Contracts, and (5) invention assignment
agreements with employees, consultants and contractors that assign or grant to Seller or a Seller Subsidiary ownership of inventions and intellectual property developed in the course of providing services to Seller or a Seller Subsidiary by such
employees, consultants and contractors. Schedule 3.9(e) also identifies all Inbound Licenses requiring Seller or any Seller Subsidiary to license, assign or otherwise grant rights to any third party for any additions, modifications or
improvements to any Transferred Intellectual Property made by or for Seller or any Seller Subsidiary. Seller has delivered or otherwise made available to Buyer copies of all Inbound Licenses, and Seller or the applicable Seller Subsidiary is in
compliance with all material terms and conditions of all Inbound Licenses. 
 (f) Schedule 3.9(f) lists all
agreements for Development (including pre-clinical and clinical) or other services being provided by any Third Party related to the Seller Compounds (“Service Contracts”). Seller has delivered or otherwise made available to Buyer
copies of all Service Contracts, and Seller or the applicable Seller Subsidiary is in compliance with all material terms and conditions of all Service Contracts. Seller has provided Buyer with access to all material Clinical Data and, to the extent
existing in recorded form, all Program Know-How. Seller has provided to Buyer or made available current, true and complete copies of all Regulatory Materials. 
 (g) To Seller’s Knowledge, Seller’s conduct of the Program and Seller’s practice of any Transferred Intellectual Property has not infringed or misappropriated any Intellectual Property
rights of any Person. Neither Seller nor any Seller Subsidiary has received any written communication (i) alleging that the conduct of the Program or the practice of any Transferred Intellectual Property infringes or misappropriates the
Intellectual Property rights of any Person, or (ii) notifying Seller or any Seller Subsidiary that the practice of any Transferred Intellectual Property requires a license to any Person’s Intellectual Property. 

(h) Neither Seller nor any Seller Subsidiary has brought any Proceeding alleging (i) infringement of any Transferred Intellectual
Property, or (ii) breach of any Outbound License, and, to Seller’s Knowledge, there does not exist any fact which could reasonably form the basis of any such Proceeding. Neither Seller nor any Seller Subsidiary has entered into any
agreement granting any third Person the right to bring infringement actions with respect to, or otherwise to enforce rights with respect to, any Transferred Intellectual Property. 

(i) Seller has taken all commercially reasonable and customary measures and precautions necessary to protect and maintain the
confidentiality of the Program Know-How. 

  
 30.

 
Seller and Seller Subsidiaries have complied in all material respects with all applicable legal requirements pertaining to privacy and security of protected health information within the Clinical
Data or the Regulatory Materials. During the last three (3) years, neither Seller nor any Seller Subsidiary has received any written communication alleging any violation of applicable legal requirements pertaining to the privacy and security of
protected health information within the Clinical Data or the Regulatory Materials. 
 (j) Neither the execution, delivery or
performance of this Agreement or the Ancillary Agreement, nor the consummation of the Transaction will (i) result in or give any other Person the right to cause a loss of, or Encumbrance, or restriction on any Transferred Intellectual Property,
including without limitation any non-compete or similar restrictions related to the operation of the Program anywhere in the world; (ii) constitute a breach by Seller or any Seller Subsidiary of any Inbound Licenses or Outbound Licenses;
(iii) result in the grant, assignment or transfer to any other Person of any license or other rights or interests under any Transferred Intellectual Property; or (iv) cause any modification, cancellation, termination, suspension of, or
acceleration of any payment with respect to any Inbound License or Outbound License. Following the Closing, the Buyer will be permitted to exercise all of the rights of Seller and Seller Subsidiaries under the Assigned Contracts to the same extent
Seller and Seller Subsidiaries are permitted to exercise such rights immediately prior to the Closing without any payment of any additional amounts or consideration, other than as expressly set forth in the Assigned Contracts. 

(k) Each current or former employee, consultant and independent contractor employed by Seller or any Seller Subsidiary or providing
services related to the Transferred Intellectual Property has executed a valid and binding written agreement (i) expressly assigning to Seller or Seller Subsidiaries all right, title and interest in any Transferred Intellectual Property
invented, created, developed, conceived or reduced to practice during the term of such employee’s employment or such consultant’s or independent contractor’s work related to the Transferred Intellectual Property; and
(ii) requiring each such employee, consultant or independent contractor to protect and preserve all confidential Transferred Intellectual Property and third party confidential information. Such assignments have either been directly assigned to
Seller or indirectly assigned to Seller through intercompany agreements between Seller and Seller or any other Seller Subsidiary. 
 (l) Seller has not (i) sought, applied for or received any support, funding, resources, materials or assistance from any Government Entity, university, college or other educational or non-profit
institution or research center in connection with the creation or development of the Transferred Intellectual Property or Seller Compounds, or (ii) used any facilities of a university, college, or other educational institution or research
center in the development of any Seller Compounds or the creation or development of the Transferred Intellectual Property. To Seller’s Knowledge, no current or former employee who was in any way involved in (or has in any way contributed to)
the creation or development of the Transferred Intellectual Property or the Seller Compounds has performed services for any Government Entity, university, college or other educational or non-profit institution or research center during a period of
time during which such employee was also performing services for Seller or Seller Subsidiaries that would result in any adverse claim or right relating to the Transferred Intellectual Property. No Government Entity, university, college or other

  
 31.

 
educational or non-profit institution or research center has any claim of right to ownership of or other liens, claims or interests with respect to the Transferred Intellectual Property, other
than Permitted Encumbrances. 
 (m) Onyx did not exercise any option granted to it under that certain Development Collaboration,
Option and License Agreement, dated December 24, 2008, by and between Seller and Onyx, as amended by that certain Letter Agreement, dated April 30, 2010, by and between Seller and Onyx, and as terminated by the Termination Agreement. As of
the date hereof, Onyx has no right or claim, whether actual or contingent, to any Transferred Intellectual Property, any other Transferred Asset or any aspect of the Program. 
 Section 3.10 Regulatory Compliance. 
 (a) The use and operation of the
Transferred Assets and the operation of the business of the Seller are in compliance in all material respects with all applicable Laws, there are no material violations of any such Laws, and neither Seller nor any Seller Subsidiary has received any
written notice from the FDA or any other Regulatory Authority alleging any existing material non-compliance with any Laws applicable to the conduct of the Program. 
 (b) There are no pending or, to Seller’s Knowledge, threatened in writing actions by the FDA or other Regulatory Authorities which would prohibit or impede the conduct of the Program as currently
conducted or contemplated to be conducted. Seller and Seller Subsidiaries have timely filed all forms, applications, statements, reports, data and other information required to be filed with any Regulatory Authority in connection with the conduct of
the Program except where a failure to file timely would not reasonably be expected to have a Material Adverse Effect. Neither Seller nor any Seller Subsidiary has made any material false statements on, or, to Seller’s Knowledge, material
omissions from, the applications, approvals, reports and other submissions Seller or any Seller Subsidiary has made to the FDA or other Regulatory Authorities prepared or maintained to comply with the requirements of the FDA or such other Regulatory
Authorities relating to the Program that would reasonably be expected to provide a basis for the FDA to invoke its policy with respect to “Fraud, Untrue Statements of Material Facts, Bribery, and Illegal Gratuities,” or similar policies,
or for any other Regulatory Authority to invoke any similar policies, set forth in any applicable Laws. 
 (c) No employee, and,
to Seller’s Knowledge, no independent contractor, of Seller or Seller Subsidiaries has been excluded from participating in the Medicare program or any other program of a Government Entity. None of Seller’s or Seller Subsidiaries’
officers, directors, agents or management employees (as that term is defined in 42 U.S.C. § 1320a 5(b)), have been excluded from participating in the Medicare program or any other Government Program or been subject to sanction pursuant to 42
U.S.C. § 1320a 7a or 1320a 8 or been convicted of a criminal offense under the Anti-Kickback Statute (42 U.S.C. § 1320a 7b). 
 (d) Seller (i) is not a party to a corporate integrity agreement with the United States Office of Inspector General (“OIG”) regarding the Program, (ii) has no reporting
obligations regarding the Program pursuant to any settlement agreement entered into with any Government Entity, (iii) has not made any disclosures, reports or any other filings, including disclosures or reports under the OIG’s Provider
Self-Disclosure Protocol, to any Government 

  
 32.

 
Entity related to any violation of Law or potential violation of Law relating to the Program, (iv) to the Knowledge of Seller, has not been the subject of any government payor program
investigation conducted by any federal or state enforcement agency related to the Program, (v) to the Knowledge of Seller, has not been a defendant in any qui tam/False Claims Act litigation related to the Program, and (vi) has not been
served with or received any written search warrant, subpoena, civil investigative demand or contact letter from any federal or state enforcement agency related to the Program. 
 Section 3.11 FDA Compliance. Seller and the Seller Subsidiaries: (a) are and at all times have been in material compliance with all Laws applicable to the ownership, testing, development,
manufacture, packaging, processing, use, distribution, marketing, labeling, promotion, sale, offer for sale, storage, import, export or disposal of the Seller Compounds; (b) have not received any FDA Form 483, notice of adverse finding, warning
letter, untitled letter or other correspondence or notice from the FDA or any other Government Entity alleging or asserting material noncompliance with any Laws or any Authorizations thereto required by any such Laws in connection with the Program;
(c) possess all material Authorizations necessary for their conduct of the Program and Seller and the Seller Subsidiaries are not in material violation of any term of any such Authorizations; (d) have not received notice of any Proceeding
from the FDA or any other Government Entity or third party alleging that any Seller Compound, or operation or activity related to any Seller Compound, is in violation of any Laws or Authorizations and has no knowledge that the FDA or any other
Government Entity or third party is considering any such Proceeding; (e) have not received notice that the FDA or any other Government Entity has taken, is taking or intends to take action to limit, suspend, modify or revoke any Authorizations
related to the Program; and (f) have filed, obtained, maintained or submitted all material reports, documents, forms, notices, applications, records, claims, submissions and supplements or amendments with respect to the Program as required by
any Laws or Authorizations and that all such reports, documents, forms, notices, applications, records, claims, submissions and supplements or amendments were materially complete and correct on the date filed (or were corrected or supplemented by a
subsequent submission). 
 Section 3.12 Clinical Studies. The preclinical studies and clinical trials of the Seller
Compounds conducted by or on behalf of Seller and its Subsidiaries were and, if still ongoing, are being conducted in all material respects in accordance with experimental protocols, procedures and controls pursuant to accepted professional
scientific standards and all Laws and Authorizations applicable to such studies and trials, including, without limitation, the Federal Food, Drug and Cosmetic Act and the rules and regulations promulgated thereunder. All materials used in such
trials materially complied with applicable Governmental Authorization and Laws, and there have not been any material deficiencies or defects in such materials. The Seller and its Subsidiaries have not received any notices or correspondence from the
FDA or any other Government Entity requiring the termination, suspension or material modification of any preclinical study or clinical trial of a Seller Compound conducted by or on behalf of Seller or its Subsidiaries. Neither Seller nor any of its
Subsidiaries has received any communication from any Person threatening any claim or lawsuit against Seller or any of its Subsidiaries arising from the administration of a Seller Compound to any Person in the course of any clinical trial conducted
by or on behalf of Seller or its Subsidiaries. 

  
 33.

 Section 3.13 Contracts. 

(a) Schedule 3.13(a) sets forth a complete and accurate list of all Contracts that relate to the Transferred Assets, other
than (i) licenses for off-the-shelf software or generally available software; (ii) non-disclosure agreements, and (iii) invention assignment agreements with employees, consultants and contractors that assign or grant to the Seller or
a Seller Subsidiary ownership of inventions and intellectual property developed in the course of providing services to the Seller or a Seller Subsidiary by such employees, consultants and contractors (the “Related Contracts”).
Seller has made available to Buyer copies of all written Related Contracts and accurate written descriptions of all material terms of all oral Related Contracts. The non-assignment of any of the Related Contracts from Seller to Buyer in no way
affects Seller’s ability to transfer all rights to the Clinical Data and Transferred Intellectual Property or to the ability of Buyer to in any way access, own and use the Clinical Data and Transferred Intellectual Property following the
Closing Date. 
 (b) All Related Contracts are in full force and effect and are enforceable against each party thereto in
accordance with the express terms thereof. There does not exist under any Related Contract any material violation, breach or event of default, or alleged material violation, breach or event of default, or event or condition that, after notice or
lapse of time or both, would constitute a material violation, breach or event of default thereunder on the part of Seller or any of its Subsidiaries or, to the Knowledge of Seller any other party thereto. To the Knowledge of Seller, no event or
circumstance has occurred that, with notice or lapse of time or both, would constitute an event of default under any Related Contract or result in termination thereof or would cause or permit the acceleration or other changes of any right or
obligation or loss of any benefit thereunder. There are no material disputes pending or threatened under any Related Contract. 

(c) There are no outstanding powers of attorney in favor of any Person relating to any Transferred Asset. 

(d) Each of the Seller-sponsored or Seller Subsidiary-sponsored clinical trials of the Seller Compounds that is the subject of any
Contract listed on Schedule 3.13(a) has been completed. There are no amounts due and payable by Seller or any Seller Subsidiary under any such Contracts, the term of each such Contract has expired (subject to survival of specified provisions
as set forth in each such Contract), and Seller or the applicable Seller Subsidiary has, as of the date hereof, effectively obtained ownership and possession of all Clinical Data generated under such Contracts. 

Section 3.14 Territorial Restrictions. None of Seller or any of its Subsidiaries is restricted by any agreement or
understanding with any Person from conducting the Program anywhere in the world, except for such restrictions that, individually or in the aggregate, would not reasonably be expected to be material to the Buyer following the Closing. 

Section 3.15 Absence of Certain Changes and Events. Since March 31, 2011, Seller has not experienced any event or
condition, and to Seller’s Knowledge no event or condition is threatened, that, individually or in the aggregate, has had or is reasonably likely to have, a Material Adverse Effect on the Transferred Assets. 

  
 34.

 Section 3.16 Confidentiality. Seller and its Affiliates have taken commercially
reasonable and customary measures and precautions to preserve the confidential nature of all material confidential information (including, without limitation, any Know-How and other proprietary information) with respect to the Transferred Assets.

 Section 3.17 Insurance Claims. Schedule 3.17 sets forth a list of all pending claims and the claims
history for Seller primarily related to the Transferred Assets under the insurance policies owned by Seller for the past three years. There are no pending claims primarily related to the Transferred Assets under any of such insurance policies
described in the immediately preceding sentence as to which coverage has been denied or disputed in any material respect by the insurer. 
 Section 3.18 Title to Transferred Assets. Seller has good and valid title to all of the Transferred Assets (other than any Intellectual Property subject to Inbound Licenses). All such
Transferred Assets are free and clear of all Encumbrances other than Permitted Encumbrances. 
 Section 3.19
Suppliers. Schedule 3.19 sets forth with respect to the Transferred Assets (i) each supplier to whom Seller has paid consideration for goods or services rendered in an amount greater than or equal to $50,000 for each of the
two most recent fiscal years (collectively, the “Material Suppliers”); and (ii) the amount of purchases from each Material Supplier during such periods. Seller has not received any notice, and has no reason to believe, that any
of the Material Suppliers has ceased, or intends to cease, to supply goods or services to Seller with respect to the Transferred Assets or to otherwise terminate or materially reduce its relationship with Seller with respect to the Transferred
Assets. 
 Section 3.20 Solvency. 
 (a) Seller is not now insolvent and will not be rendered insolvent by the Transaction. As used in this section, “insolvent” means that the sum of the debts and other probable Liabilities of
Seller exceeds the present fair saleable value of Seller’s assets. 
 (b) Immediately after giving effect to the
consummation of the Transaction: (i) Seller will be able to pay its Liabilities as they become due in the usual course of its business; (ii) Seller will not have unreasonably small capital with which to conduct its present or proposed
business; (iii) Seller will have assets (calculated at fair market value) that exceed its Liabilities; and (iv) taking into account all pending and threatened litigation, final judgments against Seller in actions for money damages are not
reasonably anticipated to be rendered at a time when, or in amounts such that, Seller will be unable to satisfy any such judgments promptly in accordance with their terms (taking into account the maximum probable amount of such judgments in any such
actions and the earliest reasonable time at which such judgments might be rendered) as well as all other obligations of Seller. The cash available to Seller, after taking into account all other anticipated uses of the cash, will be sufficient to pay
all such debts and judgments promptly in accordance with their terms. 
 Section 3.21 Foreign Corrupt Practices.
Seller does not own any securities of Buyer. Neither Seller, nor to the knowledge of Seller, any agent or other person acting on behalf of Seller, has, in connection with the Program, (i) directly or indirectly, used any funds for unlawful

  
 35.

 
contributions, gifts, entertainment or other unlawful expenses related to foreign or domestic political activity, (ii) made any unlawful payment to foreign or domestic government officials
or employees or to any foreign or domestic political parties or campaigns from corporate funds, (iii) failed to disclose fully any contribution made by Seller (or made by any person acting on its behalf of which Seller is aware) which is in
violation of Law, or (iv) violated in any material respect any provision of the Foreign Corrupt Practices Act of 1977, as amended. 
 Section 3.22 Securities Law Matters. Seller is an “accredited investor” within the meaning of Rule 501 of Regulation D under the Exchange Act, as presently in effect. Seller
understands that the shares of preferred stock issued by Buyer as part of the Upfront Equity Consideration are characterized as “restricted securities” under the federal securities Laws inasmuch as they are being acquired from Buyer in a
transaction not involving a public offering and that under such Laws and applicable regulations such securities may be resold without registration under the Securities Act, only in certain limited circumstances. Seller understands that any shares
issued as part of the Upfront Equity Consideration may bear the following or a similar legend: 
 “THE SECURITIES HAVE NOT
BEEN REGISTERED UNDER THE SECURITIES ACT OF 1933, AS AMENDED. THEY MAY NOT BE SOLD, OFFERED FOR SALE, PLEDGED, HYPOTHECATED, OR OTHERWISE TRANSFERRED EXCEPT PURSUANT TO AN EFFECTIVE REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933, AS
AMENDED, OR AN OPINION OF COUNSEL SATISFACTORY TO THE COMPANY THAT REGISTRATION IS NOT REQUIRED UNDER SUCH ACT OR UNLESS SOLD PURSUANT TO RULE 144 UNDER SUCH ACT.” 
 Section 3.23 Finders’ Fees. Except for the fees of ThinkEquity, LLC, whose fees will be paid by Seller, there is no investment banker, broker, finder or other intermediary that has been
retained by or is authorized to act on behalf of Seller or any of its Subsidiaries who might be entitled to any fee or commission from Seller or any of its Subsidiaries in connection with the Transaction. 

Section 3.24 No Other Representations or Warranties. Except for the representations and warranties contained in this
Article III, neither Seller nor any other Person makes any other express or implied representation or warranty on behalf of Seller. 
 ARTICLE IV  
 REPRESENTATIONS AND WARRANTIES OF BUYER 

Buyer represents and warrants to Seller as follows. 
 Section 4.1 Organization and Qualification. Buyer is a corporation duly organized, validly existing and in good standing under the Laws of the State of Washington. Buyer has all requisite
corporate power and authority to own and operate its respective properties and assets and to carry on its respective business as currently conducted. Buyer is duly qualified to do business and is in good standing in each jurisdiction where the
ownership or operation of its respective properties and assets or the conduct of its respective business requires such 

  
 36.

 
qualification, except for failures to be so qualified or in good standing that would not, individually or in the aggregate, impair or delay Buyer’s ability to perform its obligations
hereunder. 
 Section 4.2 Corporate Authorization. Buyer has full corporate power and authority to execute and
deliver this Agreement and the Ancillary Agreement and to perform its obligations hereunder and thereunder. The execution, delivery and performance by Buyer of this Agreement and the Ancillary Agreement have been duly and validly authorized and no
additional corporate or shareholder authorization or consent is required in connection with the execution, delivery and performance by Buyer of this Agreement or the Ancillary Agreement. 

Section 4.3 Consents and Approvals. Except as set forth on Schedule 4.3, no consent, approval, waiver,
authorization, notice or filing is required to be obtained by Buyer from, or to be given by Buyer to, or made by Buyer with, any Government Entity or Self-Regulatory Organization or other Person in connection with the execution, delivery and
performance by Buyer of this Agreement and the Ancillary Agreement other than those the failure of which to obtain, give or make would not, individually or in the aggregate, materially impair or delay the ability of Buyer to effect the Closing or to
perform its obligations under this Agreement and the Ancillary Agreement. 
 Section 4.4 Non-Contravention. The
execution, delivery and performance by Buyer of this Agreement and the Ancillary Agreement, and the consummation of the transactions contemplated hereby and thereby, do not and will not (i) violate any provision of the Governing Documents of
Buyer, (ii) assuming the receipt of all Governmental Authorizations held by the Buyer and the making of notices and filings set forth on Schedule 4.3 or required to be made or obtained by Seller, to the Knowledge of Buyer, violate
or result in a breach of or constitute a default under any Law to which Buyer is subject. 
 Section 4.5 Binding
Effect. This Agreement and the Ancillary Agreement, when executed and delivered by Seller, will constitute valid and legally binding obligations of Buyer enforceable against it in accordance with their respective terms, subject to the Bankruptcy
Exception. 
 Section 4.6 Litigation and Claims. Except as set forth on Schedule 4.6, there is no civil,
criminal or administrative action, suit, demand, claim, hearing, proceeding or investigation pending or, to the Knowledge of Buyer, threatened against Buyer that, individually or in the aggregate, would impair or delay the ability of Buyer to effect
the Closing. Buyer is not subject to any Order that, individually or in the aggregate, would impair or delay the ability of Buyer to effect the Closing. 
 Section 4.7 Capitalization. 
 (a) As of the date of this Agreement,
the authorized capital stock of Buyer consists of (i) 383,333,333 shares of Buyer common stock and (ii) 1,666,666 shares of Buyer preferred stock. As of the close of business on the day immediately preceding the date of this Agreement,
(i) 227,714,600 shares of Buyer common stock are issued and outstanding, all of which are duly authorized, validly issued, fully paid and non-assessable, (ii) no shares of Buyer 

  
 37.

 
common stock are held in the treasury of Buyer, (iii) no shares of Buyer common stock are held by Subsidiaries of Buyer, (iv) 1,451,640 shares of Buyer common stock are reserved for
future issuance pursuant to stock options, (v) 1,019,166 shares of Buyer common stock are reserved for future issuance pursuant to Buyer’s equity incentive plans, (vi) 225,974 shares of Buyer common stock are reserved for future
issuance pursuant to the Buyer’s employee stock purchase plan, (vii) 65 shares of Buyer common stock are reserved for future issuance pursuant to rights to restricted shares and (viii) 35,088,958 shares of Buyer common stock are
reserved for future issuance upon exercise of the Buyer’s outstanding warrants to purchase Buyer common stock. As of the date of this Agreement, no shares of Buyer preferred stock are issued and outstanding. As of the date of this Agreement,
pursuant to Buyer’s shareholder rights plan, dated December 28, 2009, one preferred stock purchase right is attached to and traded with each share of Buyer common stock. Except as set forth in this Section 4.7, as of
April 17, 2012, there were no options, warrants, convertible debt or other convertible instruments or other rights, agreements, arrangements or commitments of any character relating to the issued or unissued capital stock of Buyer or obligating
Buyer to issue or sell any shares of capital stock of, or other equity interests in, Buyer. All shares of Buyer common stock subject to issuance as aforesaid, upon issuance on the terms and conditions specified in the instruments pursuant to which
they are issuable, will be duly authorized, validly issued, fully paid and non-assessable. 
 (b) All shares of Buyer common
stock or preferred stock to be issued pursuant to Section 2.5, or pursuant to Section 2.12 and Section 2.19: (i) will be duly authorized, validly issued, fully paid and non-assessable and not subject to
preemptive rights created by statute, Buyer’s certificate of incorporation or bylaws or any agreement to which Buyer is a party or is bound, and (ii) will, when issued, be registered (in the case of shares to be issued pursuant to
Section 2.12 and Section 2.19) or exempt from registration (in the case of shares to be issued pursuant to Section 2.5) under the Securities Act and the Exchange Act and registered or exempt from registration
under applicable Blue Sky Laws, and (iii) will, when issued, be approved for listing on the NASDAQ National Market or any other national securities exchange on which Buyer’s common stock is listed, subject to official notice of issuance.

 Section 4.8 SEC Filings; Financial Statements. 

(a) Buyer has filed all forms, reports, statements, schedules and other documents required to be filed by it with the SEC since
January 1, 2011 under the Securities Act or the Exchange Act (collectively, the “Buyer SEC Reports”). The Buyer SEC Reports at the time they were filed and, if amended, as of the date of such amendment, complied in all material
respects with all applicable requirements of the Securities Act or the Exchange Act, as the case may be, and the rules and regulations promulgated thereunder. No Subsidiary of Buyer is required to file any form, report, statement, schedule or other
document with the SEC under the Securities Act or the Exchange Act. 
 (b) Each of the consolidated financial statements
(including, in each case, any notes thereto) contained (or incorporated by reference) in the Buyer SEC Reports was prepared in accordance with GAAP applied on a consistent basis throughout the periods indicated (except as may be indicated in the
notes thereto or, in the case of unaudited statements, as permitted by Form 10 Q of the SEC) and each fairly presents, in all material respects, the consolidated financial position, results of operations and cash flows of Buyer and its consolidated
Subsidiaries 

  
 38.

 
as at the respective dates thereof and for the respective periods indicated therein, except as otherwise noted therein (subject, in the case of unaudited statements, to normal and recurring
year-end adjustments which are not, in the aggregate, material to Buyer and its Subsidiaries, taken as a whole). 
 (c) As of
the date of this Agreement, there are no outstanding or unresolved comments in comment letters received from the SEC with respect to the Buyer SEC Reports that would reasonably be expected to delay Buyer’s performance of its obligations under
the Ancillary Agreement. To the Knowledge of Buyer, none of the Buyer SEC Reports is the subject of ongoing SEC review that would reasonably be expected to delay Buyer’s performance of its obligations under the Ancillary Agreement. 

Section 4.9 Access. Buyer and its representatives have been given full access to the assets, books, records, Contracts and
employees of Seller, and have been given the opportunity to meet with officers and other representatives of Seller for the purpose of investigating and obtaining information regarding Seller’s business, operations and legal affairs, including,
without limitation, the Program. Neither Buyer nor any of its representatives has had unauthorized access to, or has used, any confidential information of Seller regarding the process undertaken by Seller in connection with Seller’s
solicitation of potential acquisition offers or the terms of any such other offers. 
 Section 4.10 Reliance. Buyer
has not relied on and is not relying on any representations, warranties or other assurances regarding Seller, the Program or the Transferred Assets other than those representations and warranties expressly set forth in Article III of this
Agreement. 
 Section 4.11 No Buyer Vote Required. No vote or other action of the stockholders of Buyer is required
by applicable Law, the articles of incorporation of Buyer, the bylaws of Buyer or otherwise in order for Buyer to consummate the Transaction. 
 Section 4.12 Financing. Buyer will have at the Closing sufficient funds on hand and available through existing liquidity facilities to pay the Upfront Consideration (without restrictions on
drawdown that would delay payment thereof). 
 Section 4.13 No Other Representations or Warranties. Except for the
representations and warranties contained in this Article IV, neither Buyer nor any other Person makes any other express or implied representation or warranty on behalf of Buyer. 

ARTICLE V  

COVENANTS 

Section 5.1 Access and Information. From the date hereof until the Closing, subject to reasonable rules and regulations of
Seller and any applicable Laws, Seller shall: (i) afford Buyer and its Representatives full and free access, during regular business hours, to the Transferred Assets and employees or consultants of Seller with knowledge of the Transferred
Assets; provided, however, that Buyer acknowledges that after April 30, 2012, Seller may have no employees and as few as one consultant available for such purpose, and such lack of personnel shall neither constitute a breach of
this Agreement by Seller nor be a condition to Buyer’s 

  
 39.

 
obligation to effect the Closing; (ii) furnish Buyer with copies of such Contracts, other relevant agreements and Governmental Authorizations held by Seller or any of its Subsidiaries or
related to the Transferred Assets as Buyer may reasonably request; and (iii) furnish, or cause to be furnished, to Buyer any financial and operating data and other information that is available with respect to the Transferred Assets as Buyer
from time to time reasonably requests, and (iv) instruct the employees of Seller, and its counsel and financial advisors to cooperate with Buyer in its investigation of the Transferred Assets. No investigation pursuant to this
Section 5.1 shall alter any representation or warranty given hereunder by Seller. All information received pursuant to this Section 5.1 shall be governed by the terms of the Confidentiality Agreement. In the event that Buyer
requests any document or material pursuant to this Section 5.1 for which any attorney-client or other legal privilege is available, Seller’s obligation to provide Buyer with access to such document or material shall be conditioned
upon execution by Seller and Buyer of an appropriate common interest and confidentiality agreement in reasonable and customary form. 
 Section 5.2 Conduct of Business. During the period from the date hereof to the Closing, except as otherwise contemplated by this Agreement or as Buyer otherwise agrees in writing in advance,
Seller shall use its commercially reasonable best efforts to preserve intact the Transferred Assets as in existence on the date of this Agreement. By way of amplification and not in any way limiting the prior sentence, during the period from the
date hereof to the Closing, except as otherwise contemplated by this Agreement or as Buyer shall otherwise consent (which consent shall not be unreasonably withheld), Seller shall not, and shall cause each of its Subsidiaries not to: 

(a) incur, create or assume any Encumbrance (other than Permitted Encumbrances) on any of the Transferred Assets; 

(b) sell, lease, license, transfer or dispose of any Transferred Assets; 

(c) terminate or extend or modify any Related Contract; 
 (d) enter into any contract, arrangement or commitment related to the Transferred Assets; 
 (e) dispose of or permit to lapse any rights in, to or for the use of any Transferred Intellectual Property, or disclose to any Person not an employee any Transferred Intellectual Property not heretofore
a matter of public knowledge, except pursuant to judicial or administrative process; 
 (f) settle any claims, actions,
arbitrations, disputes or other Proceedings (i) that would impair the ability of Seller or any of its Subsidiaries to consummate the transactions contemplated by this Agreement and the Ancillary Agreement, or (ii) affecting the Transferred
Assets; 
 (g) do any other act which would cause any representation or warranty of Seller in this Agreement to be or become
untrue in any material respect or intentionally omit to take any action necessary to prevent any such representation or warranty from being untrue in any material respect at such time; 

  
 40.

 (h) acquire any securities of Buyer; and 

(i) authorize or enter into any agreement or commitment with respect to any of the foregoing. 

In addition, Seller shall continue to take commercially reasonable best efforts and customary measures and precautions necessary to protect and maintain
the confidentiality of the Program Know-How, consistent with Seller’s past practice. 
 Section 5.3 No Shop.

 (a) Until the earlier of the termination of this Agreement and the Closing, Seller shall not and shall cause its Subsidiaries
and their respective Representatives not to, directly or indirectly, (i) solicit, initiate, encourage or entertain any inquiries or proposals, or discuss, negotiate with or enter into any understanding, arrangement or agreement, relating to the
direct or indirect disposition, whether by sale, merger or otherwise, of all or any portion of the Transferred Assets to any Person other than Buyer or its Affiliates, or (ii) knowingly disclose, directly or indirectly, to any Person (other
than Buyer and its Representatives) any confidential information concerning the Transferred Assets except as necessary to conduct the Transferred Assets in the ordinary course of business (except as expressly contemplated by
Section 5.10(a)). In the event that Seller or any of its Affiliates receives a proposal or inquiry for such a transaction, Seller will provide Buyer with notice thereof as soon as practical after receipt or awareness thereof and in any
event within twenty-four (24) hours of such receipt or awareness which notice may, in Seller’s sole discretion, include the identity of the prospective buyer or soliciting party. 

(b) The parties acknowledge that there may be no adequate remedy at Law for a breach of Section 5.3(a) and that money damages
may not be an appropriate remedy for breach of such Section. Therefore, the parties agree that Buyer has the right to seek injunctive relief and specific performance of Section 5.3(a) in the event of any breach of such Section in
addition to any rights it may have for damages. 
 Section 5.4 Commercially Reasonable Best Efforts. Seller and
Buyer shall cooperate and use their respective commercially reasonable best efforts to fulfill as promptly as practicable the conditions precedent to the other party’s obligations hereunder, including securing as promptly as practicable all
Authorizations required in connection with the transactions contemplated hereby. Notwithstanding anything to the contrary contained herein, neither Buyer nor Seller shall be required to (i) agree to sell, divest, dispose of or hold separate any
assets or businesses, or otherwise take or commit to take any action that could reasonably limit their freedom of action with respect to, or their ability to retain, one or more businesses, product lines or assets, or (ii) litigate, (or defend)
against any Proceeding (including any proceeding seeking a temporary restraining order or preliminary injunction) challenging any of the transactions contemplated hereby as violative of any competition Law. 

Section 5.5 Tax Matters. 
 (a) Seller Liability for Taxes. Seller shall be liable for (i) any Taxes imposed with respect to the Transferred Assets or any income or gain derived with respect thereto for the

  
 41.

 
taxable periods, or portions thereof, ended on or before the Closing Date, (ii) Losses directly or indirectly relating to or arising out of any liability for Taxes imposed with respect to
the Transferred Assets or any Transferred Assets or any income or gain derived with respect thereto for the taxable periods, or portions thereof, ended on or before the Closing Date and (iii) any Transfer Taxes for which Seller is liable
pursuant to Section 5.5(e). 
 (b) Buyer Liability for Taxes. Buyer shall be liable for (i) any Taxes
imposed with respect to any Transferred Assets or any income or gains derived with respect thereto for any taxable period, or portion thereof, beginning after the Closing Date, (ii) Losses directly or indirectly relating to or arising out of
any liability for Taxes imposed with respect to any Transferred Assets or any income or gains derived with respect thereto for any taxable period, or portion thereof, beginning after the Closing Date, and (iii) any Transfer Taxes for which
Buyer is liable pursuant to Section 5.5(e). 
 (c) Proration of Taxes. To the extent necessary to determine
the liability for Taxes with respect to the Transferred Assets or any income or gain derived with respect thereto for a portion of a taxable year or period that begins before and ends after the Closing Date, the determination of such Taxes for the
portion of the year or period ending on, and the portion of the year or period beginning after, the Closing Date shall be determined by assuming that the taxable year or period ended as of the close of business on the Closing Date, except that those
actual property taxes and exemptions, allowances or deductions that are calculated on an annual basis shall be prorated on a time basis. 
 (d) Tax Returns. Seller shall file or cause to be filed when due all Tax Returns that are required to be filed by or with respect to all Transferred Assets for taxable years or periods ending on or
before the Closing Date and shall pay any Taxes due in respect of such Tax Returns, and Buyer shall file or cause to be filed when due all Tax Returns that are required to be filed by or with respect to all Transferred Assets for taxable years or
periods ending after the Closing Date and shall remit any Taxes due in respect of such Tax Returns. 
 (e) Transfer
Taxes. All federal, state, local or foreign or other excise, sales, use, value added, transfer (including real property transfer or gains), stamp, documentary, filing, recordation and other similar taxes and fees that maybe imposed or assessed
as a result of the Transaction, together with any interest, additions or penalties with respect thereto and any interest in respect of such additions or penalties (“Transfer Taxes”), shall be borne equally by Buyer and Seller on a
timely basis. Any Tax Returns that must be filed in connection with Transfer Taxes shall be prepared and filed by Seller, at its expense, and Seller will use its commercially reasonable best efforts to provide such Tax Returns to Buyer at least ten
(10) Business Days prior to the date such Tax Returns are due to be filed. 
 (f) Assistance and Cooperation. After
the Closing Date, the parties shall cooperate fully in preparing for any audits of, or disputes with taxing authorities regarding, any Tax Returns with respect to the Transferred Assets or any income or gain derived with respect thereto and payments
in respect thereof. Each party shall (i) provide timely notice to the other in writing of any pending or proposed audits or assessments with respect to any such Taxes for which such other party or any of its Affiliates may have a liability
under this Agreement and (ii) furnish the other with copies of all relevant correspondence received from any taxing authority in connection with any audit or information request with respect to any Taxes referred to in (i). 

  
 42.

 Section 5.6 Ancillary Agreement. At the Closing, each of Seller and Buyer shall
execute and deliver the Ancillary Agreement. 
 Section 5.7 Notification. 

(a) Between the date of this Agreement and the Closing, Seller shall promptly notify Buyer in writing if it becomes aware of (i) any
fact, circumstance, event or action the existence, occurrence or taking of which (A) has had, or could reasonably be expected to have, individually or in the aggregate, a Material Adverse Effect, (B) has resulted in, or could reasonably be
expected to cause, any representation or warranty made by Seller hereunder to be untrue or inaccurate in any material respect (without giving effect to any materiality or Material Adverse Effect qualification in such representation or warranty), or
(C) has resulted in, or could reasonably be expected to result in, the failure of any of the conditions set forth in Article VI to be satisfied; (ii) any notice or other communication from any Person alleging that the consent of
such Person is or may be required in connection with the transactions contemplated by this Agreement and the Ancillary Agreement; (iii) any notice or other communication from any Government Entity in connection with the transactions
contemplated by this Agreement or the Ancillary Agreement; (iv) has caused, or would reasonably be expected to cause, any covenant or agreement of Buyer hereunder not to be complied with in any material respect, or (v) any Proceeding
commenced or, to Seller’s Knowledge, threatened against, relating to or involving or otherwise affecting the Transferred Assets or the Assumed Liabilities that, if pending on the date of this Agreement, would have been required to have been
disclosed pursuant to Section 3.6 or that relates to the consummation of the transactions contemplated by this Agreement and the Ancillary Agreement. No such notification shall affect the representations or warranties of Seller, or
Buyer’s right to rely thereon, or the conditions to the obligations of Buyer. 
 (b) Buyer’s receipt of information
pursuant to this Section 5.7 shall not operate as a waiver or otherwise affect any representation, warranty or agreement given or made by Seller in this Agreement or the Ancillary Agreement and shall not be deemed to amend or supplement
the Seller Disclosure Schedules, unless set forth in a written supplement to the Seller Disclosure Schedules delivered to Buyer as set forth below in this Section 5.7(b). Should any such fact or condition require any change to the Seller
Disclosure Schedule, Seller shall promptly deliver to Buyer a supplement to the Seller Disclosure Schedule specifying such change. Such delivery shall not affect any rights of Buyer under Article VI, Article VII or
Section 9.2. 
 (c) Between the date of this Agreement and the Closing, Buyer shall promptly notify Seller in
writing if it becomes aware of any fact, circumstance, event or action the existence, occurrence or taking of which (i) has caused in, or would reasonably be expected to cause, any representation or warranty made by Buyer hereunder to be untrue
or inaccurate in any material respect, or (ii) has caused, or would reasonably be expected to cause, any covenant or agreement of Buyer hereunder not to be complied with in any material respect. No such notification shall affect the
representations or warranties of Buyer, or Seller’s right to rely thereon, or the conditions to the obligations of Seller. 

  
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 Section 5.8 Non-Competition. 

(a) Seller agrees that for the period commencing on the Closing Date and expiring on the fifth (5th) anniversary of the Closing
Date, Seller shall not engage, either directly or indirectly, alone or with others, in the clinical development or commercialization of any small molecule compound, the primary mechanism of action of which is selective and specific inhibition of
JAK2 (a “Competing Compound”), for the treatment of cancer, Myelofibrosis, Psoriasis or Rheumatoid Arthritis (a “Competing Business”); provided, however, that this Section 5.8 shall not be
construed to prohibit or restrict any third party acquiror of Seller (a “Third Party Acquiror”), whether by merger, sale of stock, sale of assets or otherwise (a “Change of Control Transaction”), or any of such
Third Party Acquiror’s affiliated companies, from engaging in a Competing Business, if the applicable Competing Compound is: (i) controlled by the Third Party Acquiror or any of its affiliated companies prior to consummation of such Change
of Control Transaction; (ii) acquired (whether by in license or otherwise) by such Third Party Acquiror or any of its affiliated companies after consummation of such Change of Control Transaction; or (iii) developed internally by such
Third Party Acquiror or any of its affiliated companies, either before or after consummation of such Change of Control Transaction, in each case without the use of or reference to Confidential Information of Buyer. 

(b) The parties acknowledge that there may be no adequate remedy at Law for a breach of Section 5.8(a) and that money damages
may not be an appropriate remedy for breach of such Section. Therefore, the parties agree that Buyer has the right to seek injunctive relief and specific performance of Section 5.8(a) in the event of any breach of such Section, in
addition to any rights it may have for damages. 
 Section 5.9 Further Assurances. From time to time after the
Closing Date, each party hereto shall, and shall cause its Affiliates, promptly to execute, acknowledge and deliver any other assurances or documents or instruments of transfer reasonably requested by the other party hereto and necessary for the
requesting party to satisfy its obligations hereunder or to obtain the benefits of the Transaction. Without limiting the generality of the foregoing, to the extent that Buyer or Seller discover following Closing that any asset that was intended to
be transferred pursuant to this Agreement was not transferred at Closing, Seller shall or shall cause its Subsidiaries promptly to assign and transfer to Buyer all right, title and interest in such asset, (ii) Seller shall or shall cause its
Subsidiaries to assist Buyer or its designee with respect to the prosecution, maintenance and enforcement of the Transferred Intellectual Property by Buyer or its designee after the Closing, including submitting on behalf of Buyer or its designee
any oaths, declarations or affidavits as required or advisable under applicable Law, and (iii) if required or advisable under applicable Law, Seller shall or shall cause its Subsidiaries to cooperate with and assist Buyer or its designee in
pursuing any Patent Term Extension for any Patent included in the Transferred Intellectual Property. 
 Section 5.10
Confidentiality. 
 (a) Except as otherwise provided herein, Seller shall treat as confidential and shall safeguard any
and all nonpublic, confidential or proprietary information included in the Transferred Assets (“Confidential Information”), in each case by using the same degree of care, but no less than a reasonable standard of care, to prevent
the unauthorized use, dissemination or 

  
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disclosure of such Confidential Information; provided, however, that the publication of those pending or in-process publications set forth on Schedule 5.10 and relating
to the Seller Compounds of which Seller notified Buyer prior to the date of this Agreement shall not constitute a breach of this Section 5.10. 
 (b) Buyer and Seller acknowledge that the confidentiality obligations set forth herein shall not extend to (i) any information which was in, or comes into, the public domain through no breach of this
Agreement or the Ancillary Agreement by Seller, (ii) any information in the possession of any Third Party Acquiror prior to a Change of Control Transaction, other than as a result of disclosure by Seller, (iii) any information that is
independently developed or discovered by any Third Party Acquiror without reference to nonpublic, confidential or proprietary information included in the Transferred Assets, (iv) is rightfully communicated to any Third Party Acquiror by another
third party, free and clear of any obligation of confidence, or (v) is or was communicated by Buyer to an unaffiliated third party free of any obligation of confidence. In addition, Seller shall not be prohibited from disclosing any portion of
the Confidential Information that Seller is required to disclose by judicial or administrative process or, in the opinion of legal counsel, by other requirements of law. 
 (c) In the event of a breach of the obligations hereunder by Buyer or Seller, the other party, in addition to all other available remedies, will be entitled to seek injunctive relief to enforce the
provisions of this Section 5.10 in any court of competent jurisdiction. 
 Section 5.11 Springing SB1518
Grant-Back. If Buyer has not started Development of SB1518 in Japan or entered into a Partnership Arrangement for SB1518 in Japan prior to the eighteen (18) month anniversary of the Closing, Buyer shall (a) transfer and assign all
rights of Buyer in Asia to Products (including Patents and Patent applications) initially acquired by Buyer from Seller back to Seller; (b) grant, and, subject to Closing of the Transaction, hereby does grant (if Buyer has not started
Development of SB1518 in Japan or entered into a Partnership Arrangement for SB1518 in Japan prior to the eighteen (18) month anniversary of the Closing), Seller an exclusive, royalty-free license, including the right to sublicense, under
Intellectual Property rights created by Buyer after the date hereof and necessary or useful for the development, manufacture or commercialization of Products in Asia, solely to develop, manufacture and commercialize Products in Asia; (c) assign
to Seller all regulatory submissions and approvals for any Product filed with any Regulatory Authority in Asia; (d) provide to Seller a copy of all data generated by or on behalf of Buyer (or its Affiliates or Sublicensees) with respect to
Products, for use by Buyer solely to obtain and maintain Regulatory Approvals for Products in Asia and to comply with applicable Law in Asia; and (e) grant to Seller the right to reference and access Buyer’s and Affiliates of Buyer’s
regulatory filings and approvals for Products outside of Asia for the sole purpose of obtaining and maintaining regulatory approvals for Products in Asia. 
 Section 5.12 Assistance in Proceedings. For a period of forty-five (45) days after the Closing Date, Seller will cooperate with Buyer and its counsel in the contest or defense of, and
make available its personnel and provide any testimony and access to its Books and Records in connection with, any proceeding involving or relating to (a) any contemplated transaction or (b) any action, activity, circumstance, condition,
conduct, event, fact, failure to act, incident, occurrence, plan, practice, situation, status or transaction on or before the Closing Date involving 

  
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Seller or the Transferred Assets; in each case, at Buyer’s sole expense, except to the extent that Seller is expressly obligated to provide any such requested cooperation or assistance by
the express terms of this Agreement (other than this Section 5.12). 
 Section 5.13 Transfer of Regulatory
Materials; Interim Responsibility. 
 (a) Seller will assign to Buyer any and all Regulatory Materials, except only for only
any regulatory filings Buyer requests in writing not to be assigned. 
 (b) Within two (2) Business Days after the Closing
Date, Seller shall (i) send letters (in form and substance satisfactory to Buyer) to the FDA and other Regulatory Authorities indicating that the Regulatory Materials are transferred to Buyer and that Buyer is the new owner of the Regulatory
Materials as of the Closing Date, and (ii) provide to Buyer a copy of said letters. 
 (c) Promptly after the Closing Date,
the parties will cooperate in transferring the Regulatory Materials to Buyer. The target date for the transfer shall be agreed upon by the parties, but shall not be later than twenty (20) days after the Closing Date. Prior to the Closing, the
parties will agree upon procedures to ensure a smooth transition from Seller to Buyer of all of the activities required to be undertaken by the Regulatory Materials holder, including adverse experience reporting, quarterly and annual reports to FDA,
handling and tracking of complaints, sample tracking, and communication with health care professionals and customers. Within twenty (20) days after the Closing Date, Seller will forward to Buyer a complete copy of the Regulatory Materials for
the Seller Compounds, as well as copies of all correspondence with, and periodic and other reports (including adverse event reports and the underlying data) to, Regulatory Authorities with respect to the Seller Compounds or Regulatory Materials.
Seller will cooperate with Buyer to ensure a smooth transition of the Program, and in obtaining the cooperation of Seller and its distributors and licensees of the Seller Compounds with the transfer of adverse experience reporting obligations from
Seller to Buyer. 
 (d) Until the Regulatory Materials have been transferred to Buyer, Seller shall be responsible for
maintaining them. After such transfer, Buyer will assume all responsibility for the Regulatory Materials, at Buyer’s sole cost and expense. Each party shall cooperate with the other in making and maintaining all regulatory filings that may be
necessary in connection with the execution, delivery and performance of this Agreement or the Ancillary Agreement. 
 (e) Seller
will transfer to Buyer, at no cost to Buyer, any and all documented Clinical Data and Program Know-How in its possession and control, and Seller will, to the extent any such Clinical Data or Program Know-How exists in a form suitable for electronic
transfer, make any transfer electronically. 
 (f) To the extent requested by Buyer, for a period of six (6) months
following the Closing, Seller will provide such assistance as may be reasonably necessary to transfer and/or transition, over a reasonable period of time, to Buyer any Assigned Contracts. 

Section 5.14 Communication With Agencies. Until the Regulatory Materials are transferred to Buyer, Seller shall have
responsibility for all communications with the FDA relating to the Seller Compounds, and Seller will promptly provide Buyer with copies of all 

  
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communications to or from the FDA with respect to the Seller Compounds and/or the manufacture thereof. After such transfer has been completed, Buyer shall have responsibility for all such
communications. Seller shall promptly provide Buyer with copies of any communications or contacts it sends to or receives from any other Government Entity concerning the Seller Compounds. 

Section 5.15 Adverse Experience Reporting. 
 (a) Until the Regulatory Materials are transferred to Buyer, Seller shall be responsible for the adverse experience and safety reporting for the Product in compliance with the requirements of applicable
Law (including Healthcare Laws). After the Regulatory Materials are transferred to Buyer, Buyer shall assume such responsibility. Buyer and Seller agree to meet promptly after the Closing Date to determine mutually agreeable reporting procedures to
communicate the information as required under this Section 5.15. 
 (b) Until the Regulatory Materials are
transferred to Buyer, Seller shall be responsible for (i) maintaining the global safety database for the Seller Compounds, (ii) monitoring of all clinical experiences for the Seller Compounds and (iii) safety monitoring,
pharmacovigilance surveillance, compliance and filing of all required safety reports to Regulatory Authorities, including without limitation annual safety reports, as and to the extent required by applicable Law (including Healthcare Laws) for any
study conducted by or for Seller with respect to the Seller Compounds. 
 On or before the Closing Date, Seller shall provide
Buyer with a summary of the information relating to the investigation and reporting of adverse experiences regarding Seller Compounds and any existing material safety data sheets with respect to the Seller Compounds as of the Closing Date. After the
Closing Date and until the Regulatory Materials are transferred to Buyer, Buyer agrees to submit to Seller all adverse drug experience information brought to the attention of Buyer with respect to the Seller Compounds, as well as any material events
and matters concerning or affecting the safety or efficacy of the Seller Compounds brought to the attention of Buyer, via facsimile to the attention of Seller. After the Regulatory Materials have been transferred to Buyer, Seller shall assist Buyer
with the provision of data relating to adverse experiences for the Seller Compounds after such transfer to Buyer. Additionally, after the transfer of the Regulatory Materials to Buyer, Seller shall provide Buyer with all adverse drug experience
information brought to the attention of Seller with respect to the Seller Compounds, as well as any materials events and matters concerning or affecting the safety or efficacy of the Seller Compounds brought to the attention of Seller, via facsimile
to the attention of Buyer. 
 Section 5.16 Financial Statement Reporting. If Buyer notifies Seller in writing prior
to the Closing that Buyer has determined that it is legally required to include audited or unaudited historical financial statements and related schedules of Seller or pro forma financial statements giving effect to the Transaction prepared in
accordance with U.S. GAAP with respect to the Transferred Assets prior to the Closing Date for inclusion in its reports with the SEC, then, solely during the 30-day period after Closing, Seller shall provide commercially reasonable best efforts to
cooperate with Buyer in Buyer’s preparation of any such financial statements, and provide reasonable access to the Books and Records and available financial and accounting personnel of Seller and its auditors; in each case, at Buyer’s sole
expense. 

  
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 Section 5.17 Certain Intellectual Property Covenants. 

(a) If and to the extent that any Patent owned or Controlled by Seller as of the date hereof or the Closing Date that is not part of the
Transferred Intellectual Property would, as of the date hereof or hereafter, in the absence of a license thereunder, be infringed by the manufacture, use, sale, offer for sale or import of a Seller Compound, Seller hereby grants to Buyer and its
Affiliates a perpetual and irrevocable (except under the circumstances and to the extent set forth in Section 5.11), worldwide (but excluding Asia in the event Buyer has not started Development of SB1518 in Japan or entered into a
Partnership Arrangement for SB1518 in Japan prior to the eighteen (18) month anniversary of the Closing), royalty-free, non-exclusive license, under such Patent, solely to make, have made, use, sell, have sold, offer for sale and import such
Seller Compound. In addition, if and to the extent that any Know-How owned or Controlled by Seller as of the date hereof or the Closing Date that is not part of the Transferred Intellectual Property is necessary or useful for the manufacture, use,
sale, offer for sale or import of a Seller Compound, Seller hereby grants to Buyer a perpetual, irrevocable, worldwide, royalty-free, non-exclusive license, under such Know-How, solely to make, have made, use, sell, have sold, offer for sale and
import such Seller Compound. The foregoing licenses shall include the right to sublicense, through multiple tiers of sublicense, solely in conjunction with the grant by Buyer to a Sublicensee of the right to make, have made, use, sell, have sold,
offer for sale, and import the applicable Seller Compound. 
 (b) If and to the extent that any Program Patent would, as of the
date hereof or hereafter, in the absence of a license thereunder, be infringed by the manufacture, use, sale, offer for sale or import of SB1317, Buyer hereby grants to Seller a perpetual, irrevocable, worldwide, royalty-free, non-exclusive license,
under such Program Patent, solely to make, have made, use, sell, have sold, offer for sale and import SB1317. In addition, if and to the extent that any Program Know-How is necessary or useful for the manufacture, use, sale, offer for sale or import
of SB1317 and was disclosed to any third party licensee of SB1317 prior to the date hereof, Buyer hereby grants to Seller a perpetual, irrevocable, worldwide, royalty-free, non-exclusive license, under such Program Know-How, solely to make, have
made, use, sell, have sold, offer for sale and import SB1317. The foregoing licenses shall include the right to sublicense, through multiple tiers of sublicense, solely in conjunction with the grant by Seller to a third party of the right under any
Excluded Assets to make, have made, use, sell, have sold, offer for sale and import SB1317. 
 ARTICLE VI 

CONDITIONS TO CLOSING 
 Section 6.1 Conditions to the Obligations of Buyer. The obligation of Buyer to effect the Closing is subject to the satisfaction (or waiver) prior to the Closing of the following conditions:

 (a) Representations and Warranties. No event or events shall have occurred since the date of this Agreement which,
individually or in the aggregate, has had a Material Adverse Effect. The representations and warranties of Seller set forth in Article III (without giving effect to any supplement to the Seller Disclosure Schedule pursuant to
Section 5.7(b)) shall be true and correct in all material respects as of the date of this Agreement, and shall be true 

  
 48.

 
and correct in all material respects as of the date of Closing, as though made on and as of the Closing (except to the extent expressly made as of an earlier date, in which case as of the earlier
date). 
 (b) Covenants. Seller shall have performed and complied in all material respects with all of its covenants
contained in Article V at or before the Closing (to the extent that such covenants require performance at or before the Closing). 
 (c) Ancillary Agreement. Seller shall have executed and delivered the Ancillary Agreement. 
 (d) Consents. All Seller Required Approvals set forth on Schedule 3.3(b) shall have been obtained and shall be in full force and effect, except to the extent the failure to obtain any
such consent would not, in the reasonable judgment of Buyer, be material to the Transferred Assets or Buyer. 
 (e) Seller
Shareholder Approval. The Transactions contemplated by this Agreement shall have received the requisite approval of the Seller’s shareholders. 
 (f) Certificate. Buyer shall have received one or more certificates, each signed by a duly authorized officer of Seller and dated the Closing Date, (i) to the effect that the conditions set
forth in Section 6.1(a) and 6.1(b) have been satisfied, (ii) certifying, as complete and accurate as of the Closing, attached copies of the governing documents of Seller, and (iii) certifying and attaching all requisite
resolutions or actions of the governing body for Seller approving the execution and delivery of this Agreement and the consummation of the transactions contemplated by this Agreement. 

(g) No Prohibition. No temporary restraining Order, preliminary or permanent injunction or other Order preventing the consummation
of the Transaction shall have been issued by any court of competent jurisdiction and remain in effect. 
 Section 6.2
Conditions to the Obligations of Seller. The obligation of Seller to effect the Closing is subject to the satisfaction (or waiver) prior to the Closing of the following conditions: 

(a) Representations and Warranties. The representations and warranties of Buyer set forth in Article IV shall be true and
correct in all material respects as of the date of this Agreement, and shall be true and correct in all material respects as of the Closing, as though made on and as of the Closing (except to the extent expressly made as of an earlier date, in which
case as of the earlier date). 
 (b) Covenants. Buyer shall have performed and complied with all of its covenants
contained in Article V (disregarding any failure to perform or comply that was inadvertent or unintentional) at or before the Closing (to the extent that such covenants require performance by Buyer at or before the Closing), except where the
failure to perform and comply with such covenants does not have a material adverse effect on the aggregate benefits to be derived by Seller from the transactions contemplated by this Agreement. 

  
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 (c) Ancillary Agreement. Buyer shall have executed and delivered the Ancillary
Agreement. 
 (d) Consents. All Buyer Required Approvals shall have been obtained and shall be in full force and effect,
except to the extent the failure to obtain any such consent does not have a material adverse effect on the aggregate benefits to be derived by Seller from the transactions contemplated by this Agreement. 

(e) Certificate. Seller shall have received a certificate, signed by a duly authorized officer of Buyer and dated the Closing
Date, to the effect that the conditions set forth in Section 6.2(a) and 6.2(b) have been satisfied. 
 (f)
No Prohibition. No temporary restraining Order, preliminary or permanent injunction or other Order preventing the consummation of the Transaction shall have been issued by any court of competent jurisdiction and remain in effect. 

ARTICLE VII  
 SURVIVAL; INDEMNIFICATION; CERTAIN REMEDIES 
 Section 7.1
Survival. The representations and warranties, covenants and obligations of Seller and Buyer contained in this Agreement, the Seller Disclosure Schedule, the certificates delivered pursuant to Section 6.1 and
Section 6.2 and any other certificates or documents delivered pursuant to this Agreement shall survive the Closing for the period set forth in this Section 7.1. All representations and warranties contained in this Agreement
and the Ancillary Agreement and all claims with respect thereto shall terminate upon the expiration of eighteen (18) months after the Closing Date, except that the representations and warranties contained in Section 3.1
(Organization and Qualification), Section 3.2 (Corporate Authorization), Section 3.5 (Binding Effect), Section 3.7 (Taxes), Section 3.9 (Intellectual Property), Section 3.18 (Title to
Purchased Assets), Section 3.23 (Finders Fees), Section 4.1 (Organization and Qualification), Section 4.2 (Corporate Authorization) and Section 4.5 (Binding Effect) (collectively, the
“Fundamental Representations”) shall survive until thirty-six (36) months after the Closing Date; it being understood that in the event notice of any claim for indemnification under Section 7.2 or
Section 7.3 hereof has been given (within the meaning of Section 9.1) within the applicable survival period, the representations and warranties that are the subject of such indemnification claim shall survive with respect to
such claim until such time as such claim is finally resolved. The right to indemnification, reimbursement or other remedy based upon the representations and warranties, covenants and obligations contained in this Agreement shall not be affected by
any investigation (including any environmental investigation or assessment) conducted with respect to, or any Knowledge acquired (or capable of being acquired) at any time, whether before or after the execution and delivery of this Agreement or the
Closing Date . 
 Section 7.2 Indemnification by Seller. Seller hereby agrees that from and after the Closing it
shall indemnify, defend and hold harmless Buyer, its Affiliates, and their respective directors, officers, shareholders, partners, members, attorneys, accountants, agents, Representatives and employees and their heirs, successors and permitted
assigns, each in their capacity as such (the “Buyer Indemnified Parties”, and, collectively with the Seller Indemnified Parties, the “Indemnified Parties”) from, against and in respect of any Losses imposed on,

  
 50.

 
sustained, incurred or suffered by, or asserted against, any of the Buyer Indemnified Parties, whether in respect of third party claims, claims between the parties hereto, or otherwise, arising
from (i) any breach or inaccuracy of any representation or warranty made by Seller contained in this Agreement (without giving effect to any supplement to the Seller Disclosure Schedule) as of the date of this Agreement, or as of the Closing
Date as if such representation or warranty had been made on and as of the Closing Date, in each case for the period such representation or warranty survives; (ii) any breach of any covenant, obligation or agreement of Seller contained in this
Agreement, (iii) any of the Excluded Liabilities, (iv) any Indemnified Taxes, (v) any brokerage or finder’s fees or commissions or similar payments based upon any agreement or understanding made, or alleged to have been made, by
any Person with Seller (or any Person acting on Seller’s behalf) in connection with any transactions contemplated by this Agreement, (vi) any matters relating to Seller’s title to any or all of the Transferred Assets to the extent
relating to, arising from or in connection with circumstance, actions, events or conditions occurring or existing on or prior to the Closing Date, and (vii) resulting from the ownership and operation of the Transferred Assets on or prior to the
Closing Date; provided, however, that for purposes of computing the amount of Losses incurred or paid by a Buyer Indemnified Party, there shall be deducted an amount equal to the amount of any insurance proceeds, indemnification
payments, contribution payments or reimbursements that are actually received by such Buyer Indemnified Party or any of such Buyer Indemnified Party’s Affiliates in connection with such Losses or the circumstances giving rise thereto; and
provided, further, that solely for purposes of computing the amount of Losses incurred or paid by a Buyer Indemnified Party with respect to any claim arising under clause (i) of this Section 7.2, any qualifications
relating to materiality, including the term “Material Adverse Effect,” shall be disregarded. 
 Section 7.3
Indemnification by Buyer. Buyer hereby agrees that from and after the Closing it shall indemnify, defend and hold harmless Seller, its Affiliates, and their respective directors, officers, shareholders, partners, members, attorneys,
accountants, agents, Representatives and employees and their heirs, successors and permitted assigns, each in their capacity as such (the “Seller Indemnified Parties”) from, against and in respect of any Losses imposed on,
sustained, incurred or suffered by, or asserted against, any of the Seller Indemnified Parties, whether in respect of third party claims, claims between the parties hereto, or otherwise, directly or indirectly relating to, arising out of or
resulting from, (i) any breach or inaccuracy of any representation or warranty made by Buyer contained in this Agreement for the period such representation or warranty survives, (ii) any of the Assumed Liabilities, and (iii) any
breach of a covenant or agreement of Buyer contained in this Agreement, (iv) any and all Taxes for which Buyer is responsible in accordance with Section 5.5 or (v) the ownership and operation of the Transferred Assets from and
after the Closing Date; provided, however, that solely for purposes of computing the amount of Losses incurred or paid by a Seller Indemnified Party with respect to any claim arising under clause (i) of this
Section 7.3, any qualifications relating to materiality shall be disregarded. 
 Section 7.4 Third Party
Claim Indemnification Procedures. 
 (a) In the event that any written claim or demand for which an indemnifying party (an
“Indemnifying Party”) may have liability to any Indemnified Party hereunder, is asserted against or sought to be collected from any Indemnified Party by a third party (a “Third Party Claim”), such Indemnified Party
shall promptly notify the Indemnifying Party in writing of 

  
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such Third Party Claim, the amount or the estimated amount of damages sought thereunder to the extent then ascertainable (which estimate shall not be conclusive of the final amount of such Third
Party Claim), any other remedy sought thereunder, any other material details pertaining thereto (a “Claim Notice”); provided, however, that the failure timely to give a Claim Notice shall not relieve the Indemnifying
Party of any liability that it may have to any Indemnified Party except to the extent the Indemnifying Party is materially and adversely prejudiced thereby. The Indemnifying Party shall have a period of thirty (30) days from receipt of such
Claim Notice within which to object to or contest the indemnity obligation relating to such Third Party Claim; provided, however, that no action taken, or not taken, by the Indemnified Party with respect to or relating in any way to
the Claim Notice, the Third Party Claim or the facts underlying such Third Party Claim prior to the expiration of such thirty (30) days period shall impact, reduce or otherwise harm such Indemnified Party’s right to indemnification
pursuant to this Section 7.5. If the Indemnifying Party does not object to or contest the indemnity obligation relating to such Third Party Claim within such thirty (30) day period, the Indemnifying Party will be deemed to have
accepted the indemnity obligation with respect to such Third Party Claim. If the Indemnifying Party objects to or contests the indemnity obligation relating to all or any part of the Third Party Claim within such thirty (30) day period, the
Indemnified Party shall have the right to assume the defense of such Third Party Claim and the sole power to direct and control such defense, at its expense, and shall have the right to make a Direct Claim against the Indemnifying Party for
indemnification for Losses resulting from such Third Party Claim (including the Indemnified Party’s expenses of defending such Third Party Claim) in accordance with Section 7.5. The Indemnifying Party shall have thirty
(30) days after receipt of the Claim Notice (the “Notice Period”) to notify the Indemnified Party that it desires to defend the Indemnified Party against such Third Party Claim unless (i) the Indemnified Party has notified
the Indemnifying Party in the Claim Notice that it has determined in good faith that there is a reasonable probability that such Third Party Claim may adversely affect it or its Affiliates other than as a result of monetary damages, (ii) the
Third Party Claim has been brought or asserted by a Government Entity, (iii) there is reasonably likely to exist a conflict of interest that would make it inappropriate (in the judgment of the Indemnified Party in its reasonable discretion) for
the same counsel to represent both the Indemnified Party and Seller, (iv) such Third Party Claim relates to Taxes, (v) such Third Party Claim relates to Intellectual Property, or (vi) settlement of, or an adverse judgment with respect
to, the Third Party Claim may establish (in the good faith judgment of the Indemnified Party) a precedential custom or practice adverse to the business interests of the Indemnified Party or would increase the Tax Liability of the Indemnified Party
in which case the Indemnified Party may assume the exclusive right to defend, compromise or settle such Third Party Claim, but the Indemnifying Party will not be bound by any determination of any Third Party Claim so defended for the purposes of
this Agreement or any compromise or settlement effected without its consent (which may not be unreasonably withheld), it being understood that by assuming the defense of a Third Party Claim the Indemnifying Party shall conclusively acknowledge its
obligation to indemnify the Indemnified Party for all or some portion of such Third Party Claim. 
 Notwithstanding the
foregoing provisions of this Section 7.4(a), in the event of a Third Party Claim in which the Third Party seeks any injunctive or other equitable relief from a court in the context of a claimed bona fide emergency or claimed
prospective irreparable harm (such claim, an “Equitable Relief Claim”), the Indemnified Party shall provide a Claim Notice with respect to such Equitable Relief Claim to the Indemnifying Party as soon as possible but no later

  
 52.

 
than the next Business Day after the Indemnified Party receives notice of the Equitable Relief Claim, and the Indemnifying Party shall have a period of three (3) Business Days from receipt
of such Claim Notice (or such lesser number of days as may be required by any court proceeding regarding such Equitable Relief Claim) within which to notify the Indemnified Party that it desires to defend such Equitable Relief Claim. Except for an
Equitable Relief Claim included in any Third Party Claim, which shall be handled in accordance with this paragraph, such Third Party Claim shall be subject to the first paragraph of this Section 7.4(a). 

(b) In the event that the Indemnifying Party notifies the Indemnified Party within the Notice Period that it desires to defend the
Indemnified Party against a Third Party Claim, the Indemnifying Party shall have the right to defend the Indemnified Party by appropriate proceedings and shall have the sole power to direct and control such defense, with counsel reasonably
satisfactory to the Indemnified Party at its expense. Once the Indemnifying Party has duly assumed the defense of a Third Party Claim, the Indemnified Party shall have the right, but not the obligation, to participate in any such defense and to
employ separate counsel of its choosing. The Indemnified Party shall participate in any such defense at its expense unless (i) the Indemnifying Party and the Indemnified Party are both named parties to the proceedings and the Indemnified Party
shall have reasonably concluded that representation of both parties by the same counsel would be inappropriate due to actual or potential differing interests between them, or (ii) the Indemnified Party assumes the defense of a Third Party Claim
after the Indemnifying Party has failed to diligently pursue a Third Party Claim it has assumed, as provided in the first sentence of Section 7.4(c). The Indemnifying Party shall not, without the prior written consent of the Indemnified
Party, settle, compromise or offer to settle or compromise any Third Party Claim on a basis that would result in (i) the imposition of a consent order, injunction or decree that would restrict the future activity or conduct of the Indemnified
Party or any of its Affiliates, (ii) a finding or admission of a violation of Law or violation of the rights of any Person by the Indemnified Party or any of its Affiliates, (iii) a finding or admission that would have an adverse effect on
other claims made or threatened against the Indemnified Party or any of its Affiliates, or (iv) except to the extent within the basket set forth in Section 7.6(a) hereof, any monetary liability of the Indemnified Party that will not
be promptly paid or reimbursed by the Indemnifying Party. 
 (c) If the Indemnifying Party (i) elects not to defend the
Indemnified Party against a Third Party Claim, whether by not giving the Indemnified Party timely notice of its desire to so defend or otherwise, (ii) is not entitled to defend the Third Party Claim as a result of the Indemnified Party’s
election to defend the Third Party Claim as provided in Section 7.4(a), or (iii) after assuming the defense of a Third Party Claim, fails to take reasonable steps necessary to defend diligently such Third Party Claim within ten days
after receiving written notice from the Indemnified Party to the effect that the Indemnifying Party has so failed, the Indemnified Party shall have the right but not the obligation to assume its own defense; it being understood that the Indemnified
Party’s right to indemnification for a Third Party Claim shall not be adversely affected by the defense. 
 (d) The
Indemnified Party and the Indemnifying Party shall cooperate in order to ensure the proper and adequate defense of a Third Party Claim, including by keeping the other party reasonably informed of the status of such Third Party Claim and any related
Proceedings at all stages thereof where such party is not represented by its own counsel, and by providing 

  
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access to each other’s relevant business records and other documents, and employees; it being understood that the costs and expenses of the Indemnified Party relating thereto shall be Losses
(but only to the extent that the Third Party Claim is ultimately subject to indemnification under this Agreement). 
 (e) The
Indemnified Party and the Indemnifying Party shall use its reasonable best efforts to avoid production of confidential information (consistent with applicable Law), and to cause all communications among employees, counsel and others representing any
party to a Third Party Claim to be made so as to preserve any applicable attorney-client or work-product privileges. 
 (f)
Notwithstanding any provision of this Agreement to the contrary, the Indemnifying Party hereby consents to the nonexclusive jurisdiction of any court in which a proceeding in respect of a Third Party Claim is brought against any Indemnified Party
for purposes of any claim that the Indemnified Party may have under this Agreement with respect to such proceeding or the matters alleged therein and agree that process may be served on the Indemnifying Party with respect to such a claim anywhere in
the world. 
 Section 7.5 Direct Claims. If an Indemnified Party wishes to make a claim for indemnification
hereunder for a Loss that does not result from a Third Party Claim (a “Direct Claim”), the Indemnified Party shall notify the Indemnifying Party in writing of such Direct Claim, the amount or the estimated amount of damages sought
thereunder to the extent then ascertainable (which estimate shall not be conclusive of the final amount of such Direct Claim), any other remedy sought thereunder, and any other material details pertaining thereto. The Indemnifying Party shall have a
period of 30 days from delivery of the notice of Direct Claim within which to respond to such Direct Claim. If the Indemnifying Party does not respond within such 30-day period, the Indemnifying Party will be deemed to have accepted the Direct
Claim. If the Indemnifying Party rejects all or any part of the Direct Claim, the Indemnified Party shall be free to seek enforcement of its rights to indemnification under this Agreement with respect to such Direct Claim. 

Section 7.6 Limitations. 
 (a) This Article VII shall be the exclusive means for an Indemnified Party to collect any Losses for which such Indemnified Party is entitled to indemnification under this Agreement or otherwise
and under any theory of liability. Seller’s aggregate liability to Buyer Indemnified Parties shall not exceed $6,000,000 plus 50% of the amount of any Milestone Payment earned (regardless of when such Milestone Payment is earned); provided that
the foregoing limitation shall not apply to Losses based upon, arising out of or by reason of (i) any Excluded Liabilities or (ii) any breach of any of the Indemnifying Party’s representations and warranties of which such Indemnifying
Party had Knowledge at any time prior to the date on which such representation and warranty is made or fraud or any intentional breach by the Indemnifying Party of any covenant or obligation under this Agreement. 

(b) Notwithstanding anything to the contrary contained in this Agreement or the Ancillary Agreement, no Indemnified Party shall be
entitled to recover any Losses under Section 7.2 (other than with respect to a claim for indemnification based upon, arising out of or 

  
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by reason of any breach or inaccuracy of any Fundamental Representation) unless and until the aggregate Losses for which they would otherwise be entitled to indemnification under
Section 7.2 exceed $300,000 at which point the Indemnified Parties shall become entitled to be indemnified only for such Losses in excess of $300,000, provided that the foregoing limitation shall not apply to Losses based upon, arising
out of or by reason of (i) any Excluded Liabilities, (ii) any breach of any of the Indemnifying Party’s representations and warranties of which such Indemnifying Party had Knowledge at any time prior to the date on which such
representation and warranty is made or fraud or any intentional breach by the Indemnifying Party of any covenant or obligation under this Agreement, or (iii) any breach or inaccuracy of any Fundamental Representation. 

(c) If any Indemnified Party receives or becomes entitled to indemnification from an Indemnifying Party, the Indemnifying Party shall be
entitled to exercise and shall be subrogated to any rights and remedies (including rights of indemnity, rights of contribution and rights of recovery) that the Indemnified Party may have against any other Person with respect to any Losses,
circumstance or matter to which such indemnification payment is directly or indirectly related. The Indemnified Party shall take such actions, at the cost and expense of the Indemnifying Party, as the Indemnifying Party may reasonably request for
the purpose of enabling the Indemnifying Party to perfect or exercise all rights of subrogation hereunder. 
 Section 7.7
Indemnification in Case of Strict Liability or Indemnitee Negligence. THE INDEMNIFICATION PROVISIONS IN THIS ARTICLE VII SHALL BE ENFORCEABLE REGARDLESS OF WHETHER THE LIABILITY IS BASED UPON PAST, PRESENT OR FUTURE ACTS, CLAIMS OR
LAWS (INCLUDING ANY PAST, PRESENT OR FUTURE BULK SALES LAW, ENVIRONMENTAL LAW, FRAUDULENT TRANSFER ACT, OCCUPATIONAL SAFETY AND HEALTH LAW OR PRODUCTS LIABILITY, SECURITIES OR OTHER LAW) AND REGARDLESS OF WHETHER ANY PERSON (INCLUDING THE PERSON
FROM WHOM INDEMNIFICATION IS SOUGHT) ALLEGES OR PROVES THE SOLE, CONCURRENT, CONTRIBUTORY OR COMPARATIVE NEGLIGENCE OF THE PERSON SEEKING INDEMNIFICATION OR THE SOLD OR CONCURRENT STRICT LIABILITY IMPOSED UPON THE PERSON SEEKING INDEMNIFICATION.

 Section 7.8 Payments. Claims by an Indemnified Party for Losses pursuant to this Agreement shall be satisfied at
the election of Buyer, (i) as an offset against the Milestone Payments or Royalty Payments or (ii) if the claim is made within six (6) months after the Closing, against Seller directly, up to an aggregate of $4,000,000, which Seller
may satisfy through surrender to Buyer and cancellation of up to $4,000,000 of the Upfront Equity Consideration (the number of such shares to be determined based on the consolidated closing bid price per share of Buyer common stock on Nasdaq
immediately prior to the signing of this Agreement); provided, however, that the foregoing limitations in clauses (i) and (ii) shall not apply to Losses based upon, arising out of or by reason of (a) any Excluded Liabilities or
(b) any breach of any of the Indemnifying Party’s representations and warranties of which such Indemnifying Party had Knowledge at any time prior to the date on which such representation and warranty is made or fraud or any intentional
breach by the Indemnifying Party of any covenant or obligation under and, provided further, however, that the dollar amount referenced in clause (ii) shall not be deemed to limit Losses as set forth in Section 7.6 and shall not be
deemed 

  
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to limit clause (i) in any way. For the avoidance of doubt, if any Indemnified Party has given notice of a claim for indemnification in accordance with Article VII prior to the end of the
period ending six (6) months after the Closing and such claim has not been resolved by such date, then such Third Party Claim or Direct Claim will continue to be eligible for payment pursuant to clause (i) or (ii) of this
Section 7.8 until resolved. All amounts payable pursuant to this Article VII, shall be paid by wire transfer of immediately available funds, promptly following receipt from an Indemnified Party of a bill, together with all
accompanying reasonably detailed back-up documentation, for a Loss that is the subject of indemnification hereunder, unless the Indemnifying Party in good faith disputes the Loss, in which event it shall so notify the Indemnified Party. In any
event, the Indemnifying Party shall pay to the Indemnified Party, by wire transfer of immediately available funds, the amount of any Loss for which it is liable hereunder no later than five (5) Business Days following any final determination of
such Loss and the Indemnifying Party’s liability therefore. A “final determination” shall exist when (i) the parties to the dispute have reached an agreement in writing, or (ii) a court of competent jurisdiction shall have
entered a final and non-appealable Order or judgment. 
 Section 7.9 Characterization of Indemnification Payments.
All payments made by an Indemnifying Party to an Indemnified Party in respect of any claim pursuant to this Article VII shall be treated as adjustments to the Purchase Price for Tax purposes. 

Section 7.10 Mitigation. Each Indemnified Party shall use its commercially reasonable best efforts to mitigate any
indemnifiable Loss. 
 Section 7.11 Effect of Waiver of Condition. Neither Buyer’s nor Seller’s right to
indemnity, reimbursement or other remedy pursuant to this Article VII shall be adversely affected by its waiver of a condition to closing set forth in Article VI unless such party makes clear by the terms of its waiver that it is
foreclosing its right to indemnity with respect to the matter subject of the waiver. 
 Section 7.12 Right of
Set-Off. Subject to the indemnification provisions set forth above in this Article VII, Buyer shall have the right to set off any amounts owed under this Article VII against any Milestone Payments or Royalty Payments owed under
this Agreement. Neither the exercise of nor the failure to exercise such right of setoff shall constitute an election of remedies or limit Buyer or Seller in any manner in the enforcement of any other remedies that may be available to either.

 Section 7.13 Specific Performance. The Parties acknowledges and agrees that any breach of this Agreement may give
rise to irreparable harm for which monetary damages may not be an adequate remedy. The Parties accordingly agrees that, in addition to other rights or remedies, the other Party shall be entitled to seek to enforce the terms of this Agreement by
decree of specific performance and to seek preliminary, temporary and permanent injunctive relief against any breach or threatened beach of this Agreement. 

  
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 ARTICLE VIII  
 TERMINATION 
 Section 8.1 Termination. This Agreement may be
terminated at any time prior to the Closing: 
 (a) by Buyer by written notice to Seller if Buyer is not then in material breach
of any provision of this Agreement and: 
 (i) there has been a breach, inaccuracy in or failure to perform any representation,
warranty, covenant or agreement made by Seller pursuant to this Agreement that would give rise to the failure of any of the conditions specified in Section 6.1(a) or Section 6.1(b) and such breach, inaccuracy or failure has
not been cured by Seller by the earlier of (A) ten (10) days of Seller’s receipt of written notice of such breach from Buyer, and (B) forty-five (45) days from the date of this Agreement; or 

(ii) any of the conditions set forth in Section 6.1(d), (e), or (f) shall not have been fulfilled within
forty-five (45) days after the date of this Agreement; 
 (b) by Seller by written notice to Buyer if: 

(i) Seller is not then in material breach of any provision of this Agreement and there has been a breach, inaccuracy in or failure to
perform any representation, warranty, covenant or agreement made by Buyer pursuant to this Agreement that would give rise to the failure of any of the conditions specified in Section 6.2(a) or Section 6.2(b) and such breach,
inaccuracy or failure has not been cured by Buyer by the earlier of (A) ten (10) days of Buyer’s receipt of written notice of such breach from Seller, and (B) forty-five (45) days from the date of this Agreement; or

 (ii) any of the conditions set forth in Section 6.2(d) or (e) shall not have been fulfilled within
forty-five (45) days after the date of this Agreement; or 
 (c) by Buyer or Seller if the Transaction has not been
consummated within forty-five (45) days after the date of this Agreement; provided, however, that a party shall not be permitted to terminate this Agreement pursuant to this Section 8.1(c) if the failure to consummate
the Transaction within such period is attributable to a failure on the part of such party to perform any covenant in this Agreement required to be performed by such party at or prior to the Closing; or 

(d) by Buyer or Seller in the event that a court of competent jurisdiction shall have issued a final and nonappealable Order having the
effect of permanently restraining, enjoining or otherwise prohibiting the Transaction; provided, however, that a party shall not be permitted to terminate this Agreement pursuant to this Section 8.1(d) if such party did not
use commercially reasonable best efforts to have such Order vacated prior to its becoming final and nonappealable. 

Section 8.2 Effect of Termination. In the event of the termination of this Agreement in accordance with
Section 8.1, this Agreement shall thereafter become void and have no effect, 

  
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and no party hereto shall have any liability to the other party hereto or their respective Affiliates, or their respective directors, officers or employees, except for the obligations of the
parties hereto contained in this Section 8.2 and in Article IX (and any related definitional provisions set forth in Article I), and except that nothing in this Section 8.2 shall relieve any party from liability
for any breach of this Agreement (including, without limitation, a breach of Section 5.3) that arose prior to such termination, for which liability the provisions of Article VII shall remain in effect in accordance with the
provisions and limitations of such Article. 
 ARTICLE IX  

MISCELLANEOUS 
 Section 9.1 Notices. All notices and communications hereunder shall be deemed to have been duly given and made if in writing and if served by personal delivery upon the party for whom it is
intended or delivered by registered or certified mail, return receipt requested, or if sent by facsimile or email, provided that the facsimile or email is promptly confirmed by telephone confirmation thereof, to the Person at the address set forth
below, or such other address as may be designated in writing hereafter, in the same manner, by such Person: 
 To Buyer:

 Cell Therapeutics, Inc. 
 501 Elliott Avenue West, Suite 400 
 Seattle, WA 98119 

Telephone: +1 (206) 272-4000 
 Facsimile: +1 (206) 272-4302 
 Email: ** 

Attn: James A. Bianco, M.D., Chief Executive Officer 
 With a copy to CTI Legal Affairs at the above address. 
 With a copy to counsel,
provided that such copy shall notice constitute legal notice to Buyer: 
 O’Melveny & Myers LLP 

Two Embarcadero Center 
 San Francisco, CA 94111-3823 
 Telephone: +1 (415) 984-8700 

Facsimile: +1 (415) 984-8701 
 Email: ** 
 Attn: C. Brophy Christensen, Esq. and Eric Sibbitt, Esq. 

 

	**	Indicates that certain information contained herein has been omitted and filed separately with the Securities and Exchange Commission. Confidential treatment has been
requested with respect to the omitted portions. 

  
 58.

 To Seller: 
 S*BIO Pte Ltd. 
 c/o EDBI 

250 North Bridge Rd #28-00 Raffles City Tower 
 Singapore 179101 
 Telephone: +65 6832 6326 

Facsimile: +65 6832 6838 
 Email: ** 
 Attn: Heng Tong Choo 

With a copy to counsel, provided that such copy shall not constitute legal notice to Seller: 

Cooley LLP 

4401 Eastgate Mall 
 San Diego, CA 92121 
 Telephone: +1 (858) 550-6000 

Facsimile: +1 (858) 550-6420 
 Email: ** 
 Attn: Jane K. Adams 

Section 9.2 Amendment; Waiver; Remedies Cumulative. Any provision of this Agreement may be amended or waived if, and only if
such amendment or waiver is in writing and signed, in the case of an amendment, by Buyer and Seller, or in the case of a waiver, by the party against whom the waiver is to be effective. No notice or demand on one party will be deemed to be a waiver
of any obligation of that party or the right of the party giving a notice or demand to take further action without notice or demand as provided in this Agreement. No waiver that may be given by a party will be applicable except for the specific
instance for which it is given. No failure or delay by any party in exercising any right, power or privilege hereunder shall operate as a waiver thereof nor shall any single or partial exercise thereof preclude any other or further exercise thereof
or the exercise of any other right, power or privilege. 
 Section 9.3 No Assignment or Benefit to Third Parties.
Subject to the provisions of Section 2.11, (a) no party to this Agreement may assign any of its rights or delegate any of its obligations under this Agreement, by operation of Law or otherwise, without the prior written consent of
the other party hereto, except as provided in Section 9.5, (b) Buyer may assign any and all of its rights under this Agreement to a Third Party or one or more of its wholly owned subsidiaries, by operation of Law or otherwise,
without the prior written consent of Seller (but no such assignment shall relieve Buyer of any of its obligations hereunder), and (c) Seller may assign this Agreement in connection with the transfer or sale of all or substantially all of
Seller’s business related to the Excluded Assets to a Third Party, whether by merger, sale of stock, sale of assets or otherwise (but no such assignment shall relieve Seller of any of its obligations hereunder). This Agreement shall be binding
upon and inure to the benefit of the parties hereto and their respective successors, legal Representatives and permitted assigns. Nothing in this 

  
  

	**	Indicates that certain information contained herein has been omitted and filed separately with the Securities and Exchange Commission. Confidential treatment has been
requested with respect to the omitted portions. 

  
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Agreement, express or implied, is intended to confer upon any Person, other than Buyer, Seller, the Indemnified Parties and their respective successors, legal Representatives and permitted
assigns, any legal or equitable right, remedy or claim under or by reason of this Agreement. 
 Section 9.4 Entire
Agreement. This Agreement (including the Seller Disclosure Schedule, all Schedules and Exhibits hereto and other documents delivered pursuant hereto) contains the entire agreement between the parties hereto with respect to the subject matter
hereof and supersedes all prior agreements and understandings, oral or written, with respect to such matters (including any proposal made or letter of intent delivered by Buyer to Seller), except for the Confidentiality Agreement, which shall remain
in full force and effect. 
 Section 9.5 Fulfillment of Obligations. Any obligation of any party to any other party
under this Agreement which obligation is performed, satisfied or fulfilled completely by an Affiliate of such party, shall be deemed to have been performed, satisfied or fulfilled by such party. 

Section 9.6 Public Disclosure. Notwithstanding anything to the contrary contained herein, except as may be required to comply
with the requirements of any applicable Law and the rules and regulations of any stock exchange upon which the securities of one of the parties is listed, from and after the date hereof, no press release or similar public announcement or
communication shall be made or caused to be made by either party and/or any of such party’s Affiliates relating to this Agreement or the Transaction unless specifically approved in advance by the other party; provided, however,
that: (a) the parties jointly may issue one or more press release(s) announcing entry into this Agreement and/or the Closing; (b) either party may issue such press releases, public announcements or communications or make such SEC filings
as it determines are reasonably necessary to comply with applicable Law (including disclosure requirements of the SEC) or with the requirements of any stock exchange on which securities issued by a party or its Affiliates are traded; (c) Seller
may deliver such communications to its shareholders regarding this Agreement and the Transactions as may be required by applicable Law; (d) after the Closing, Buyer shall not be subject to any restrictions under this Section 9.6,
and (e) after the Closing, Seller may issue press releases or otherwise publicly announce the receipt and, when received, the amounts of Milestone Payments and Royalty Payments hereunder. Seller and Buyer will consult with each other concerning
the means by which the counterparty(ies) to any Assigned Contract will be informed of the transactions contemplated by this Agreement, and Buyer will have the right to be present for any such communication. 

Section 9.7 Expenses. Except as otherwise expressly provided in this Agreement, whether or not the transactions contemplated
by this Agreement are consummated, all costs and expenses incurred in connection with the preparation, negotiation, execution and performance of this Agreement and the Transaction shall be borne by the party incurring such costs and expenses. Buyer
will pay any filing fee in connection with any application or other filing to be made with respect to this Agreement or the Transaction pursuant to any competition Law. 
 Section 9.8 Bulk Sales. Seller and Buyer agree to waive compliance with Article 6 of the Uniform Commercial Code as adopted in each of the jurisdictions in which any of the Transferred
Assets are located to the extent that such Article is applicable to the transactions contemplated hereby. 

  
 60.

 Section 9.9 Governing Law: Submission to Jurisdiction: Selection of Forum; Waiver of
Trial by Jury. THE AGREEMENT SHALL BE GOVERNED BY AND CONSTRUED IN ACCORDANCE WITH THE LAWS OF THE STATE OF CALIFORNIA WITHOUT REGARD TO PRINCIPLES OF CONFLICTS OF LAW THAT WOULD REQUIRE THE APPLICATION OF ANY OTHER LAW. Each party hereto agrees
that it shall bring any action or proceeding in respect of any claim arising out of or related to this Agreement or the transactions contained in or contemplated by this Agreement and the Ancillary Agreement, exclusively in the United States
District Court for the Northern District of California or any California State court sitting in San Francisco (the “Chosen Courts”), and solely in connection with claims arising under this Agreement or the transactions that are the
subject of this Agreement or the Ancillary Agreement (i) irrevocably submits to the exclusive jurisdiction of the Chosen Courts, (ii) waives any objection to laying venue in any such action or proceeding in the Chosen Courts,
(iii) waives any objection that the Chosen Courts are an inconvenient forum or do not have jurisdiction over any party hereto and (iv) agrees that service of process upon such party in any such action or proceeding shall be effective if
notice is given in accordance with Section 9.1 of this Agreement. Each party hereto irrevocably waives any and all right to trial by jury in any legal proceeding arising out of or relating to this Agreement or the transactions
contemplated hereby. 
 Section 9.10 Counterparts. This Agreement may be executed in one or more counterparts, each
of which shall be deemed an original, and all of which shall constitute one and the same Agreement. The exchange of copies of this Agreement and of signature pages by facsimile transmission shall constitute effective execution and delivery of this
Agreement as to the parties and may be used in lieu of the original Agreement for all purposes. Signatures of the parties transmitted by facsimile shall be deemed to be their original signatures for all purposes. 

Section 9.11 Headings. The heading references herein and the table of contents hereof are for convenience purposes only, and
shall not be deemed to limit or affect any of the provisions hereof. 
 Section 9.12 Severability. The provisions of
this Agreement shall be deemed severable and the invalidity or unenforceability of any provision shall not affect the validity or enforceability of the other provisions hereof. If any provision of this Agreement, or the application thereof to any
Person or any circumstance, is invalid or unenforceable, (a) a suitable and equitable provision shall be substituted therefore in order to carry out, so far as may be valid and enforceable, the intent and purpose of such invalid or
unenforceable provision and (b) the remainder of this Agreement and the application of such provision to other Persons or circumstances shall not be affected by such invalidity or unenforceability, nor shall such invalidity or unenforceability
affect the validity or enforceability of such provision, or the application thereof, in any other jurisdiction. 

Section 9.13 Disclosure Schedules. The representations and warranties contained in Article III of the Agreement are
subject to (a) the exceptions and disclosures set forth in the part of the Disclosure Schedule corresponding to the particular Section of Article III in which such representation and warranty appears; (b) any exceptions or
disclosures explicitly cross-referenced in such part of the Disclosure Schedule by reference to another part of the Disclosure Schedule; and (c) any exception or disclosure set forth in any other part of the Disclosure

  
 61.

 
Schedule to the extent it is reasonably apparent on its face and without further inquiry that such exception or disclosure is intended to qualify such representation and warranty. No
reference to or disclosure of any item or other matter in this Disclosure Schedule shall be construed as an admission or indication that such item or other matter is material (nor shall it establish a standard of materiality for any purpose
whatsoever) or that such item or other matter is required to be referred to or disclosed in this Disclosure Schedule. The information set forth in the Disclosure Schedule is disclosed solely for the purposes of this Agreement, and no
information set forth therein shall be deemed to be an admission by any party hereto to any third party of any matter whatsoever, including of any violation of Law or breach of any agreement. The Disclosure Schedule and the information and
disclosures contained therein are intended only to qualify and limit the representations, warranties and covenants of Seller contained in this Agreement. Nothing in the Disclosure Schedule is intended to create any covenant. Matters reflected
in the Disclosure Schedule are not necessarily limited to matters required by the Agreement to be reflected in this Disclosure Schedule. Such additional matters are set forth for informational purposes and do not necessarily include other
matters of a similar nature. 

  
 62.

 IN WITNESS WHEREOF, the parties have executed or caused this Agreement to be executed as of
the date first written above. 
  

			
	S*BIO PTE LTD.
		
	By:	 	 /s/ Tamar Howson

	Name:	 	Tamar Howson
	Title:	 	Chief Executive Officer
	
	CELL THERAPEUTICS, INC.
		
	By:	 	 /s/ James A. Bianco

	Name:	 	James A. Bianco, M.D.
	Title:	 	Chief Executive Officer

 Exhibit A 

Registration Rights Agreement 
 The Registration Rights Agreement is attached hereto as Exhibit 10.2 of Buyer’s Current Report on Form 8-K filed April 24, 2012. 

  
 A-1

 Exhibit B 

Program Know-How 
 1. All
contents of, including all data and information contained in, the hard copy (paper) files of Seller clinical, regulatory and QA files (including CMC documents, batch records, reports, etc.) as per the below (paper files are the reference files; on
request, courtesy electronic files can be provided but Seller makes no warranty as to accuracy of electronic files): 
 SB1518 Clinical:

  

			
	 Document Type
	  	 Box Number (Location)

	 **
	  	 **

		
	 **
	  	 **

		
	 **
	  	 **

		
	 **
	  	 **

		
	 **
	  	 **

		
	 **
	  	 **

		
	 **
	  	 **

		
	 **
	  	 **

 SB1518 Regulatory: 
  

			
	 Document Type
	  	 Box Number (Location)

	 **
	  	 **

		
	 **
	  	 **

		
	 **
	  	 **

		
	 **
	  	 **

		
	 **
	  	 **

		
	 **
	  	 **

 SB1518 QA: 
  

			
	 Document Type
	  	 Box Number (Location)

	 **
	  	 **

		
	 **
	  	 **

		
	 **
	  	 **

		
	 **
	  	 **

		
	 **
	  	 **

		
	 **
	  	 **

		
	 **
	  	 **

		
	 **
	  	 **

		
	 **
	  	 **

  

	**	Indicates that certain information contained herein has been omitted and filed separately with the Securities and Exchange Commission. Confidential treatment has been
requested with respect to the omitted portions. 

  
 B-1

			
	 Document Type
	  	 Box Number (Location)

	 **
	  	 **

		
	 **
	  	 **

		
	 **
	  	 **

		
	 **
	  	 **

		
	 **
	  	 **

 Note: The files highlighted in pink are boxes where multiple compound data is included. These boxes will be
repackaged to include only the relevant documents for Seller Compounds. 
 SB1578 Clinical: 

 

			
	 Document Type
	  	 Box Number (Location)

	 **
	  	 **

 SB1578 Regulatory: 
  

			
	 Document Type
	  	 Box Number (Location)

	 **
	  	 **

 SB1578 QA: 
  

			
	 Document Type
	  	 Box Number (Location)

	 **
	  	 **

		
	 **
	  	 **

		
	 **
	  	 **

		
	 **
	  	 **

		
	 **
	  	 **

		
	 **
	  	 **

		
	 **
	  	 **

		
	 **
	  	 **

		
	 **
	  	 **

		
	 **
	  	 **

 Note: The files highlighted in pink are boxes where multiple compound data is included. These boxes will be
repackaged to include only the relevant documents for Seller Compounds. 
 2. The study protocol for a proposed clinical trial of SB1518
titled **. 
 3. All contents of, including all data and information contained in, the Regulatory Materials referred to in item 2(a) above.

 4. All chemistry laboratory notebooks relating to the Seller Compounds. 

 

	**	Indicates that certain information contained herein has been omitted and filed separately with the Securities and Exchange Commission. Confidential treatment has been
requested with respect to the omitted portions. 

  
 B-2.

 Exhibit C 

Program Patents as of the Date of this Agreement 
 “OXYGEN LINKED PYRIMIDINE DERIVATIVES” 
  

					
	 Jurisdiction
	  	 Application No.
	  	 Patent No. (if any)

	Australia	  	2006316071	  	2006316071
	Brazil	  	PI06185525	  	
	Canada	  	2,629,443	  	
	China	  	200680050676.5	  	ZL200680050676.5
	Europe	  	06813132.5	  	
	Hong Kong	  	09100412.1	  	
	India	  	2191/KOLNP/2008	  	
	Indonesia	  	WO200801506	  	
	Japan	  	2008-541128	  	
	Malaysia	  	PI 20081674	  	
	Mexico	  	MX/a/2008/006432	  	298029
	New Zealand	  	568325	  	568325
	PCT	  	PCT/SG2006/000352	  	
	Philippines	  	1-2008-501125	  	
	Singapore	  	200803992-7	  	142892
	South Africa	  	2008/04208	  	2008/04208
	South Korea	  	10-2008-7013543	  	
	Taiwan	  	095142296	  	
	Thailand	  	0601005660	  	
	USA	  	12/093,867	  	8,153,632
	USA	  	13/438,989	  	
	Vietnam	  	1-2008-10477	  	

 “11-(2-PYRROLIDIN-1-YL-ETHOXY)-14,19-DIOXA-5,7,26-TRIAZA- 

TETRACYCLO[19.3.1.1(2,6).1(8,12)]HEPTACOSA-1(25),2(26), 3,5,8,10,12(27),16,21,23- 

DECAENE CITRATE SALT” 
  

					
	 Jurisdiction
	  	 Application No.
	  	 Patent No. (if any)

	Argentina	  	P090104834	  	
	Australia	  	2009325147	  	
	Brazil	  	PI 0922736-9	  	
	Canada	  	2,746,058	  	
	China	  	200980150325.5	  	
	Europe	  	09788621.2	  	
	GCC	  	14895	  	
	Hong Kong	  	12102375.7	  	
	India	  	2306/KOLNP/2011	  	
	Indonesia	  	W00201102475	  	
	Israel	  	213418	  	
	Japan	  	2011-540664	  	
	Korea	  	10-2011-7015738	  	
	Malaysia	  	PI 2011002647	  	
	Mexico	  	MX/A/2011/006206	  	
	New Zealand	  	593223	  	
	PCT	  	PCT/SG2009/000473	  	
	Philippines	  	1-2011-501084	  	

  
 C-1

 “11-(2-PYRROLIDIN-1-YL-ETHOXY)-14,19-DIOXA-5,7,26-TRIAZA- 

TETRACYCLO[19.3.1.1(2,6).1(8,12)]HEPTACOSA-1(25),2(26), 3,5,8,10,12(27),16,21,23- 

DECAENE CITRATE SALT” 
  

					
	 Jurisdiction
	  	 Application No.
	  	 Patent No. (if any)

	Russia	  	2011126173	  	
	Singapore	  	201104006-0	  	
	South Africa	  	2011/04032	  	
	Taiwan	  	098142605	  	
	Thailand	  	0901005538	  	
	USA	  	13/133,297	  	
	Vietnam	  	1-2011-01814	  	

 “11-(2-PYRROLIDIN-1-YL-ETHOXY)-14,19-DIOXA-5,7,26-TRIAZA- 

TETRACYCLO[19.3.1.1(2,6).1(8,12)]HEPTACOSA-1(25),2(26), 3,5,8,10,12(27),16,21,23- 

DECAENE MALEATE SALT” 
  

					
	 Jurisdiction
	  	 Application No.
	  	 Patent No. (if any)

	Argentina	  	P090104835	  	
	Europe	  	09793626.4	  	
	GCC	  	14896	  	
	PCT	  	PCT/SG2009/000474	  	
	Taiwan	  	098142603	  	
	Thailand	  	0901005538	  	
	USA	  	13/133,288	  	

 “9E-15-(2-PYRROLIDIN-1-YL-ETHOXY)-7,12,25-TRIOXA-19,21,24-TRIAZA- 

TETRACYCLO[18.3.1.1(2,5).1(14,18)]HEXACOSA-1(24),2,4,9,14,16,18 (26),20,22- 

NONAENE CITRATE SALT” 
  

					
	 Jurisdiction
	  	 Application No.
	  	 Patent No. (if any)

	Argentina	  	P 10 01 02594	  	
	Brazil	  	BR 11 2012 000750 5	  	
	Canada	  	2,768,210	  	
	China	  	201080032627.5	  	
	Europe	  	10737645.1	  	
	GCC	  	GC 2010-16322	  	
	Japan	  	TBA	  	
	Mexico	  	MX/A/2012/000680	  	
	PCT	  	PCT/SG2010/000265	  	
	Russia	  	2012105044	  	
	Taiwan	  	099123331	  	
	Thailand	  	1001001083	  	
	USA	  	13/384,139	  	

  
 C-2.

 Exhibit D 

Technical Description of SB1518 
  

 
 SB1518 
 Chemical name: 11-(2-Pyrrolidin-1-yl-ethoxy)-14,19-dioxa-5,7,26-triaza- tetracyclo[19.3.1.1(2,6).1(8,12)] heptacosa-1(25),2(26),3,5,8,10,12(27),16,21,23-decaene 

Generic name: pacritinib 

  
 D-1

 Exhibit E 

SB1578 

Technical Description of SB1578 
  

 
 SB1578 
 Chemical name: (9E)-15-(2-pyrrolidin-1-yl-ethoxy)-7,12,25-trioxa-19,21,24-triaza-tetracyclo[18.3.1.1(2,5).1(14,18)]hexacosa-1(24),2,4,9,14,16, 18(26),20,22-nonaene 

  
 E-1

 Schedule 1.1(a) 

Knowledge Individuals 

** 
 ** 

** 
  

	**	Indicates that certain information contained herein has been omitted and filed separately with the Securities and Exchange Commission. Confidential treatment has been
requested with respect to the omitted portions. 

 Schedule 2.1(c) 

Provisional Applications 

U.S. Provisional Patent Application Nos. 60/736,838; 60/817,339 and 60/851,283. 

 Schedule 2.1(d) 

Regulatory Materials 
 1.
Reference is made to Exhibit B. 
 2. The right to be the sole holder and named “sponsor” (as defined in Part 310.3
of Title 21 of the U.S. Code of Federal Regulations), or any foreign equivalent thereof, of the Regulatory Materials referred to in item 2(a) above. 
 3. The right to be the sole holder of the Orphan Drug designation for SB1518 in the US and in Europe. 

 Schedule 2.1(e) 

Assigned Contracts 
 1. Master Research Services Agreement dated August 31, 2007, between Seller and **, as amended November 16, 2010. 
 2. Quality Assurance Agreement for the Supply of Drug Substance dated October 1, 2009, between Seller and **. 
 3. Master Agreement dated November 10, 2009, between Seller and **. 
 4.
Quality Assurance Agreement for the Supply of Clinical Drug Product dated October 12, 2010, between Seller and **. 
 5.
Master Agreement dated June 23, 2006, between Seller and **. 
 6. Quality Assurance Agreement for the Supply of Drug
Product dated October 22, 2009, between Seller and **. 
 7. Study Development Agreement dated October 13, 2011,
between Seller and **. 
 8. Such other contracts of Seller set forth on Schedule 3.13 of the Seller Disclosure
Schedule as Buyer may designate to Seller in writing within 10 days of the date of this Agreement. 
  

	**	Indicates that certain information contained herein has been omitted and filed separately with the Securities and Exchange Commission. Confidential treatment has been
requested with respect to the omitted portions. 

 Schedule 2.1(f) 

Inventory 
  

	 	(a)	SB1518 Drug Product Inventory 

  

							
	 Batch Number
	  	 Strength/Packaging
	  	 Quantity (bottles)
	  	 Location

	15573	  	100 mg/bottles of 30’s	  	**	  	**
	16083	  	Placebo/bottles of 120’s	  	**	  	**
	16151	  	100 mg/bottles of 120’s	  	**	  	**
	17180	  	100 mg/bottles of 120’s	  	**	  	**

  

	 	(b)	SB1578 API Inventory 

  

					
	 Batch Number
	  	 Quantity (gm)
	  	 Location

	CBFD1001	  	**	  	**
	CBFD1002	  	**	  	**

  

	**	Indicates that certain information contained herein has been omitted and filed separately with the Securities and Exchange Commission. Confidential treatment has been
requested with respect to the omitted portions. 

	 	(c)	SB1518 Citrate Intermediates and API Stock 

  

																					
	 SB1518 Citrate Intermediates and API
Stock
	  	Remarks
	 Unit - IV Stock
	  	Unit - III Stock	  	 	  	Date:	  	12.05.2011
	 S.No
	  	 Name Of the Product
	  	Stage	  	Batch No.	  	Quantity
(Kg)	  	Total
Quantity
(Kg)	  	Batch No.	  	Quantity
(Kg)	  	Total
Quantity
(Kg)	  	Unit – III and
Unit – IV Stock
(Kg)	  	 
		  	**	  	  
 **
	  	  
 **
	  	  
 **
	  	  
 **
	  	  
 **
	  	  
 **
	  	  
 **
	  	  
 **
	  	  
 **

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

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

	  		  	  	**	  	**	  	  	**	  	**	  		  	  	

  

	**	Indicates that certain information contained herein has been omitted and filed separately with the Securities and Exchange Commission. Confidential treatment has been
requested with respect to the omitted portions. 

																					
	 SB1518 Citrate Intermediates and API
Stock
	  	Remarks
	 Unit - IV Stock
	  	Unit - III Stock	  	 	  	Date:	  	12.05.2011
	 S.No
	  	 Name Of the Product
	  	Stage	  	Batch No.	  	Quantity
(Kg)	  	Total
Quantity
(Kg)	  	Batch No.	  	Quantity
(Kg)	  	Total
Quantity
(Kg)	  	Unit – III and
Unit – IV Stock
(Kg)	  	 
		  		  		  	**	  	**	  		  	**	  	**	  		  		  	
		  	  	  		  		  		  	**	  	**	  		  		  	
	**	  	  	  		  		  		  	  
 **
	  	  
 **
	  	  
 **
	  	  
 **
	  	  
 **

		  	  
 KSM
	  		  		  		  		  		  		  		  		  	
	**	  	**	  	**	  		  		  		  		  		  		  		  	
	**	  	**	  	**	  		  		  		  		  		  		  		  	
	**	  	**	  	**	  		  		  		  		  		  		  		  	
	**	  	**	  	**	  		  		  		  		  		  		  		  	
	**	  	**	  	**	  		  		  		  		  		  		  		  	
	**	  	**	  	**	  		  		  		  		  		  		  		  	
	**	  	**	  	**	  		  		  		  		  		  		  		  	

  

	**	Indicates that certain information contained herein has been omitted and filed separately with the Securities and Exchange Commission. Confidential treatment has been
requested with respect to the omitted portions. 

 Schedule 2.2(k) 

Other Excluded Assets 

1. Reference is made to Schedule 3.9(b)-2 of the Seller Disclosure Schedule. 
 2. Termination Agreement. 
 3. License Agreement dated November 12, 2008, between Seller and
Tragara Pharmaceuticals, Inc. 

 Schedule 2.8 

Purchase Price Allocation 
  

							
	 Purchase Price:
	  	$	15,000,000	  	 	 Upfront Cash Consideration

		  	$	15,000,000	  	 	 Upfront Equity Consideration

		  	  
	  
	 	 	
		  	$	30,000,000	  	 	 Total Consideration (See Notes)

 ** 
  

 

	**	Indicates that certain information contained herein has been omitted and filed separately with the Securities and Exchange Commission. Confidential treatment has been
requested with respect to the omitted portions. 

 Schedule 5.10 

Pending Publications 
 1.
** 
 2. ** 
 3. ** 

4. ** 
 5. ** 

 

	**	Indicates that certain information contained herein has been omitted and filed separately with the Securities and Exchange Commission. Confidential treatment has been
requested with respect to the omitted portions.

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