Document:

exv10w28

EXHIBIT 10.28

FOIA CONFIDENTIAL TREATMENT REQUESTED

Execution Copy

 

 

NEKTAR THERAPEUTICS,

AEROGEN, INC.,

AND

BAYER HEALTHCARE LLC

CO-DEVELOPMENT, LICENSE AND CO-PROMOTION AGREEMENT

AUGUST 1, 2007

 

 

TABLE OF CONTENTS

	 	 	 	 	 	 	 	 	 
	 	 	 	 	 	 	Page	 
	1	 	Definitions	 	 	2	 
	2	 	License Grants	 	 	14	 
	 
	 	2.1	 	License Grants to Bayer	 	 	14	 
	 
	 	2.2	 	Certain Covenants	 	 	15	 
	 
	 	2.3	 	Sublicense Rights	 	 	15	 
	 
	 	2.4	 	No Implied Rights or Licenses	 	 	16	 
	 
	 	2.5	 	Exclusivity	 	 	16	 
	 
	 	2.6	 	Covenant Not to Sue	 	 	16	 
	 
	 	2.7	 	Reserved Rights	 	 	16	 
	3	 	Governance	 	 	16	 
	 
	 	3.1	 	General	 	 	16	 
	 
	 	3.2	 	Joint Steering Committee	 	 	17	 
	 
	 	3.3	 	Joint Finance Committee	 	 	18	 
	 
	 	3.4	 	Global Project Team	 	 	19	 
	 
	 	3.5	 	Global Brand Team	 	 	20	 
	 
	 	3.6	 	U.S. Regional Business Unit	 	 	21	 
	 
	 	3.7	 	Nektar Participation in Committees and Teams	 	 	21	 
	 
	 	3.8	 	Disbanding of Committees and Withdrawal from Teams or Units	 	 	22	 
	 
	 	3.9	 	Decision Making After Withdrawal from or Disbanding of Committees	 	 	22	 
	4	 	Development Program	 	 	23	 
	 
	 	4.1	 	Project	 	 	23	 
	 
	 	4.2	 	Development Plan and Development Budget	 	 	23	 
	 
	 	4.3	 	Standard of Performance	 	 	24	 
	 
	 	4.4	 	Subcontracting Permitted	 	 	24	 
	5	 	Regulatory Matters	 	 	25	 
	 
	 	5.1	 	Pharmacovigilance Agreement	 	 	25	 
	 
	 	5.2	 	Preparation of Regulatory Filings	 	 	25	 
	 
	 	5.3	 	Notice of Communication with Regulatory Authorities	 	 	26	 
	 
	 	5.4	 	Regulatory Compliance	 	 	27	 
	 
	 	5.5	 	Regulatory Documentation	 	 	28	 
	 
	 	5.6	 	Transfer of IND	 	 	28	 

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	 	 	 	 	 	 	Page	 
	 
	 	5.7	 	Product Recall	 	 	28	 
	 
	 	5.8	 	Conformité Europeen Mark	 	 	28	 
	 
	 	5.9	 	Cooperation	 	 	28	 
	6	 	Diligence	 	 	28	 
	7	 	Commercialization	 	 	29	 
	 
	 	7.1	 	Commercialization Plan and Commercialization Budget in the Shared Territory	 	 	29	 
	 
	 	7.2	 	Launch Plan and Launch Budget for the Shared Territory	 	 	30	 
	 
	 	7.3	 	[***]	 	 	31	 
	 
	 	7.4	 	[***]	 	 	31	 
	 
	 	7.5	 	Sales Representative Compliance	 	 	31	 
	 
	 	7.6	 	Commitment in the Shared Territory	 	 	31	 
	 
	 	7.7	 	Packaging; Bayer and Nektar Marks	 	 	31	 
	 
	 	7.8	 	Promotion in [***]	 	 	32	 
	8	 	Payment Obligations	 	 	32	 
	 
	 	8.1	 	Research and Development Funding	 	 	32	 
	 
	 	8.2	 	Shared Territory Pre-Launch Costs; Profit-Sharing	 	 	33	 
	 
	 	8.3	 	Milestone Payments	 	 	35	 
	 
	 	8.4	 	Royalties in the Royalty Territory	 	 	36	 
	 
	 	8.5	 	Payments	 	 	38	 
	 
	 	8.6	 	Currency of Payment	 	 	39	 
	 
	 	8.7	 	Single Royalty	 	 	39	 
	 
	 	8.8	 	Sublicensing	 	 	39	 
	 
	 	8.9	 	Accounting	 	 	39	 
	 
	 	8.10	 	Withholding Tax	 	 	40	 
	9	 	Manufacture and Supply of Amikacin and the Device	 	 	40	 
	 
	 	9.1	 	Manufacturing and Supply Agreement	 	 	40	 
	 
	 	9.2	 	Clinical Manufacturing and Supply	 	 	41	 
	 
	 	9.3	 	Manufacturing Expenditures	 	 	41	 
	10	 	Record Keeping, Record Retention and Audits	 	 	41	 
	 
	 	10.1	 	Record Keeping	 	 	41	 
	 
	 	10.2	 	Record Retention	 	 	42	 

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	 	 	 	 	 	 	Page	 
	 
	 	10.3	 	Audit Request	 	 	42	 
	 
	 	10.4	 	Survival	 	 	42	 
	11	 	Inventions, Know-How and Patents	 	 	43	 
	 
	 	11.1	 	Existing Intellectual Property	 	 	43	 
	 
	 	11.2	 	Ownership of Inventions	 	 	43	 
	 
	 	11.3	 	Patent Prosecution and Maintenance	 	 	44	 
	 
	 	11.4	 	Third Party Licenses	 	 	46	 
	 
	 	11.5	 	Infringement by Third Parties	 	 	47	 
	 
	 	11.6	 	Infringement Outside the Field	 	 	48	 
	 
	 	11.7	 	Further Actions	 	 	48	 
	12	 	Representations and Warranties	 	 	48	 
	 
	 	12.1	 	The Parties' Representations and Warranties	 	 	48	 
	 
	 	12.2	 	Additional Representations and Warranties of Bayer	 	 	49	 
	 
	 	12.3	 	Additional Representations and Warranties of Nektar and Aerogen	 	 	49	 
	13	 	Non-Solicitation of Employees	 	 	50	 
	 
	 	13.1	 	Non-Solicitation	 	 	50	 
	14	 	Mutual Indemnification and Insurance	 	 	51	 
	 
	 	14.1	 	Nektar's Right to Indemnification	 	 	51	 
	 
	 	14.2	 	Bayer's Right to Indemnification	 	 	51	 
	 
	 	14.3	 	Process for Indemnification	 	 	52	 
	 
	 	14.4	 	Insurance	 	 	53	 
	15	 	Confidentiality	 	 	53	 
	 
	 	15.1	 	Confidentiality; Exceptions	 	 	53	 
	 
	 	15.2	 	Degree of Care; Permitted Use	 	 	54	 
	 
	 	15.3	 	Permitted Disclosures	 	 	54	 
	 
	 	15.4	 	Irreparable Injury	 	 	55	 
	 
	 	15.5	 	Return of Confidential Information	 	 	55	 
	16	 	Publicity	 	 	55	 
	 
	 	16.1	 	Public Disclosure	 	 	55	 
	17	 	Trademarks	 	 	56	 

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	 	17.1	 	Product Trademark; Use of Nektar Trademark	 	 	56	 
	 
	 	17.2	 	Trademark Prosecution and Maintenance	 	 	56	 
	18	 	Term and Termination	 	 	57	 
	 
	 	18.1	 	Term	 	 	57	 
	 
	 	18.2	 	Termination by Bayer	 	 	57	 
	 
	 	18.3	 	Termination by Nektar	 	 	58	 
	 
	 	18.4	 	Termination for Material Breach	 	 	58	 
	 
	 	18.5	 	Termination upon Insolvency	 	 	58	 
	 
	 	18.6	 	Termination by Bayer Pursuant to Section 18.2 or by Nektar Pursuant to Section 18.3 or 18.4	 	 	59	 
	 
	 	18.7	 	Termination by Bayer for Material Breach by Nektar	 	 	61	 
	 
	 	18.8	 	General Surviving Obligations	 	 	64	 
	 
	 	18.9	 	Challenge	 	 	64	 
	 
	 	18.10	 	Accrued Rights, Surviving Obligations	 	 	65	 
	 
	 	18.11	 	Rights in Bankruptcy	 	 	65	 
	19	 	LIMITATION OF LIABILITY AND EXCLUSION OF DAMAGES; DISCLAIMER OF WARRANTY	 	 	65	 
	20	 	Miscellaneous	 	 	66	 
	 
	 	20.1	 	Agency	 	 	66	 
	 
	 	20.2	 	Assignment; Change of Control	 	 	66	 
	 
	 	20.3	 	Further Actions	 	 	67	 
	 
	 	20.4	 	Force Majeure	 	 	67	 
	 
	 	20.5	 	Notices	 	 	68	 
	 
	 	20.6	 	Amendment	 	 	69	 
	 
	 	20.7	 	Waiver	 	 	69	 
	 
	 	20.8	 	Counterparts	 	 	69	 
	 
	 	20.9	 	Construction	 	 	69	 
	 
	 	20.10	 	Governing Law	 	 	69	 
	 
	 	20.11	 	Severability	 	 	70	 
	 
	 	20.12	 	Compliance with Applicable Law	 	 	70	 
	 
	 	20.13	 	Entire Agreement of the Parties	 	 	70	 
	 
	 	20.14	 	Performance by Affiliates	 	 	70	 
	 
	 	20.15	 	Certain Additional Obligations	 	 	71	 

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Commission. Confidential Treatment Requested Under

17 C.F.R. Sections 200.80(b)(4) and 240.24b-2

CO-DEVELOPMENT, LICENSE AND CO-PROMOTION AGREEMENT

     This Co-Development, License and Co-Promotion Agreement (the “Agreement”) is made and
entered into as of the 1st day of August, 2007 (the “Effective Date”) among NEKTAR
THERAPEUTICS, a Delaware corporation with a principal place of business at 150 Industrial
Road, San Carlos, California 94070 U.S.A. (“Nektar”), AEROGEN, INC., a Delaware
corporation with a principal place of business at 150 Industrial Road, San Carlos, California 94070
U.S.A. (“Aerogen”), a wholly-owned subsidiary of Nektar, and BAYER HEALTHCARE
LLC, a Delaware corporation with a principal place of business at 555 White Plains Road,
Tarrytown, New York 01591 U.S.A. (“Bayer”). Nektar and Bayer are sometimes referred to herein
individually as a “Party” and collectively as the “Parties” (which terms shall not include
Aerogen). Except as otherwise provided in Section 20.14 hereof, references to “Nektar,” “Aerogen,”
and “Bayer” shall not include their respective Affiliates.

Recitals

     Whereas, Nektar is a biotechnology company engaged in the research, development, and
commercialization of pharmaceutical compounds and devices for delivering such compounds;

     Whereas, Bayer is a pharmaceutical company engaged in the research, development and
commercialization of products useful in the amelioration, treatment and/or prevention of human
diseases and conditions;

     Whereas, Nektar has developed and is conducting clinical trials of a pharmaceutical
product consisting of a liquid formulation of the antibiotic known as Amikacin delivered using a
nebulizer device based on Nektar’s proprietary pulmonary drug delivery system;

     Whereas, Bayer and Nektar desire to collaborate in certain activities to develop such
product in both “[***]” and “[***]” configurations for the treatment of [***] infections;

     Whereas, Bayer and Nektar desire to collaborate in the promotion and
commercialization of such product to expand the availability of, and access by patients to, such
product worldwide; and

     Whereas, Bayer desires to obtain, and Nektar and Aerogen are willing to grant to
Bayer, a license under Nektar’s and Aerogen’s proprietary technology to import, develop,
commercialize, make, promote, market, use, offer for sale and sell a product based upon such
pulmonary delivery of liquid Amikacin, on the terms and conditions provided in this Agreement.

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Commission. Confidential Treatment Requested Under

17 C.F.R. Sections 200.80(b)(4) and 240.24b-2

Agreement

     Now, Therefore, in consideration of the foregoing and the covenants and promises
contained in this Agreement and intending to be legally bound, the Parties agree as follows:

     1. Definitions. As used herein, the following terms shall have the following
meanings:

          1.1 “[***]” has the meaning set forth in the [***].

          1.2 “[***]” has the meaning set forth in the [***].

          1.3 “ACCME Standards” means the standards set forth by the Accreditation Council for
Continuing Medical Education relating to educating the medical community in the United States.

          1.4 “Aerogen” has the meaning set forth in the Preamble.

          1.5 “Affiliate” means a corporation, partnership, trust or other entity that directly, or
indirectly through one or more intermediates, controls, is controlled by or is under common control
with a specified Party. For such purposes, “control,” “controlled by” and “under common control
with” shall mean the possession of the power to direct or cause the direction of the management and
policies of an entity, whether through the ownership of voting equity, voting member or partnership
interests, control of a majority of the board of directors or other similar body, by contract or
otherwise. In the case of a corporation, the direct or indirect ownership of more than fifty
percent (50%) of its outstanding voting shares or the ability otherwise to elect a majority of the
board of directors or other managing authority of the entity shall in any event be presumptively
deemed to confer control, it being understood that the direct or indirect ownership of a lesser
percentage of such shares shall not necessarily preclude the existence of control.

          1.6 “Agent” means any Third Party that is hired by, licensed by, sublicensed by or otherwise
contractually associated with a Party during the term of this Agreement to the extent useful or
necessary for the Party to fulfill its obligations under this Agreement.

          1.7 “Agreement” means this Co-Development, License and Co-Promotion Agreement, all amendments
and supplements to this Co-Development, License and Co-Promotion Agreement and all schedules and
exhibits to this Co-Development, License and Co-Promotion Agreement.

          1.8 “Allowable Expenses” means those expenses incurred in connection with Commercialization of
Product in the Shared Territory (excluding Pre-Launch Costs) that are consistent with the approved
Commercialization Plan and Commercialization Budget for the Shared Territory and are specifically
attributable to Product in the Shared Territory, and shall

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Commission. Confidential Treatment Requested Under

17 C.F.R. Sections 200.80(b)(4) and 240.24b-2

consist of (a) Cost of Goods Sold, (b) Marketing Expenses, (c) Distribution Expenses, (d)
Post-Launch Product R&D Expenses, and (e) Regulatory Expenses (as such terms are defined in Exhibit
1.8). Allowable Expenses also includes all GSM Expenses (as defined in Exhibit 1.8), whether
incurred with respect to the Shared Territory or the Royalty Territory, as more fully described in
Exhibit 1.8.

          1.9 “Amikacin” means the [***].

          1.10 “Applicable Law” means all applicable laws, rules, and regulations, including, without
limitation, any rules, regulations, guidelines or other requirements of the Regulatory Authorities
or other governmental authorities, that may be in effect from time to time in any relevant legal
jurisdiction in the Territory.

          1.11 “Bayer” has the meaning set forth in the Preamble.

          1.12 “Change of Control” means that a Third Party shall have become the beneficial owner of
securities representing fifty-one percent (51%) or more of the aggregate voting power of the
then-outstanding voting securities of a Party, or any sale by a Party of all or substantially all
of its business or assets pertaining to the Product.

          1.13 “CIA” means the Corporate Integrity Agreement between the Office of Inspector General of
the Department of Health and Human Services and Bayer Corporation dated January 23, 2001.

          1.14 “Clinical Trials” means Phase I Clinical Trials, Phase II Clinical Trials, Phase III
Clinical Trials, Phase IV Clinical Trials, and/or variations of such trials (e.g., Phase II/III) as
those terms are defined by the FDA.

          1.15 “CMC Data” means any and all Information contained in, as well as data supporting, the
Chemistry, Manufacturing and Control sections (or sections corresponding thereto) of an NDA, or
other equivalent regulatory filing, relating to the Product.

          1.16 “Commencement” or “Commence” means, when used with respect to Clinical Trials (or the
local equivalent), the date of enrollment of the first patient or subject in such Clinical Trials
(or the local equivalent).

          1.17 “Commercialization” means all activities undertaken relating to the manufacture for
commercial use, marketing, and/or sale of the Product, including without limitation Pre-Launch
Activities, advertising, education, planning, marketing, promotion, distribution, market and
product support, and shall include post-launch medical activities such as Phase IV Clinical Trials
anywhere in the world but shall exclude Development activities. “Commercialize” shall have a
corresponding meaning.

          1.18 “Commercialization Budget” has the meaning set forth in Section 7.1(b).

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Commission. Confidential Treatment Requested Under

17 C.F.R. Sections 200.80(b)(4) and 240.24b-2

          1.19 “Commercialization FTE” means the equivalent of an employee working [***] labor hours per
year on Commercialization of Product.

          1.20 “Commercialization FTE Rate” means the overall rate, as determined by the JFC pursuant to
Section 3.3(b), to be applied to each Commercialization FTE employed by Bayer or Nektar providing
support for or involved in Commercialization of Product in the Shared Territory, including without
limitation [***] and [***], in each year.

          1.21 “Commercialization Plan” has the meaning set forth in Section 7.1(b).

          1.22 “Commercial Launch” means the first arm’s length commercial sale of the Product by Bayer,
an Affiliate of Bayer or a Sublicensee of Bayer to a Third Party (including without limitation any
final sale to a distributor or wholesaler under any non-conditional sale arrangement) in a country
where Regulatory Approval of such Product has been obtained by or on behalf of Bayer; provided,
however, that in no event shall any sale or distribution of the Product for Pre-Launch Activities
or use in a Clinical Trial be deemed a Commercial Launch.

          1.23 “Commercially Reasonable Efforts” means, with respect to the Exploitation of the Product,
the level of efforts and resources (including without limitation the promptness with which such
efforts and resources would be applied) commonly used in the pharmaceutical industry with respect
to a product of similar commercial potential at a similar stage in its development or product life,
taking into consideration its safety and efficacy, its cost to develop, manufacture and bring to
market, the prevalence of the indication, the competitiveness of alternative products of Third
Parties, the Patent and other proprietary position of such product, the likelihood of Regulatory
Approval, its profitability and all other relevant factors. Commercially Reasonable Efforts shall
be determined on a market-by-market basis for the Product.

          1.24 “Competitive Product” means a product containing an [***] that is labeled for
amelioration, treatment or prevention of [***] and that includes technology that, [***].

          1.25 “Completion” means, when used with respect to a Clinical Trial (or the local equivalent),
the date on which the Party conducting the Clinical Trial completes the final report for such
Clinical Trial (or the local equivalent).

          1.26 “Confidential Information” has the meaning set forth in Section 15.1.

          1.27 “Control” means, with respect to any item of Information, Patent, Patent Application,
know-how or other intellectual property right, the right to grant a license or sublicense with
respect thereto as provided for in this Agreement, without violating the terms of any agreement or
other arrangement with, or any legal rights of, or without requiring the consent of, any Third
Party.

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Commission. Confidential Treatment Requested Under

17 C.F.R. Sections 200.80(b)(4) and 240.24b-2

          1.28 “Damages” has the meaning set forth in Section 14.1.

          1.29 “Develop” or “Development” means all activities relating to obtaining Regulatory Approval
of the Product and all manufacturing activities undertaken prior to Commercialization (including
without limitation those activities reasonably required for the scale up of Manufacturing processes
or equipment in preparation for commercial supply of Product). This includes, for example, (a)
preclinical testing, toxicology, formulation, clinical studies, including without limitation
Clinical Trials, and regulatory affairs and (b) manufacturing process development for bulk and
finished forms of the Device or the Product, as applicable, production of clinical supply of
Product, and manufacturing and quality assurance technical support activities prior to the
commencement of Pre-Launch Activities, but excludes Manufacturing for Commercialization purposes.

          1.30 “Development Budget” has the meaning set forth in Section 4.2(a).

          1.31 “Development Costs” means the expenses incurred by a Party or for its account after the
Effective Date that are consistent with the approved Development Plan and are specifically
attributable to the Development of the Product.

          1.32 “Development Plan” has the meaning set forth in Section 4.2(a).

          1.33 “Device” means a nebulizer device comprising at least an [***]. The current embodiment
of the Device is set forth in Exhibit 1.33.

          1.34 “Device Budget” has the meaning set forth in Section 4.2(a).

          1.35 “DMF” means, as the case may be, either a drug master file or a device master file
maintained with the FDA and the equivalent thereof, if any, in jurisdictions outside the Shared
Territory.

          1.36 “Dollar” means a U.S. dollar, and “$” shall be interpreted accordingly.

          1.37 “Drug Budget” has the meaning set forth in Section 4.2(a).

          1.38 “EMEA” means the European Medicines Agency, or any successor thereto, which coordinates
the scientific review of human pharmaceutical products under the centralized licensing procedure in
the European Union.

          1.39 “European Union” means the countries that are members of the European Union as of the
Effective Date of this Agreement or that become members of the European Union thereafter.

          1.40 “Exploitation” means the making, having made, using, having used, selling, having sold,
offering for sale and/or otherwise disposing of, the Product, including,

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Commission. Confidential Treatment Requested Under

17 C.F.R. Sections 200.80(b)(4) and 240.24b-2

without limitation, all discovery, research, development (including without limitation the
conduct of Clinical Trials), registration, modification, enhancement, improvement, manufacturing,
labeling, storage, formulation, exportation, importation, optimization, transportation,
distribution, promotion and marketing activities related thereto.

          1.41 “FDA” means the United States Food and Drug Administration, or any successor thereto,
having the administrative authority to regulate the marketing of human pharmaceutical products or
biological therapeutic products, delivery systems and devices in the United States.

          1.42 “Field” means the amelioration, treatment and/or prevention in humans of [***].

          1.43 “Force Majeure Event” has the meaning set forth in Section 20.4.

          1.44 “Formulated Amikacin” means Amikacin in a liquid formulation existing as of the Effective
Date or developed pursuant to this Agreement for use in Pulmonary Delivery by means of the Device.

          1.45 “Fully Burdened Manufacturing Costs” means, as applicable to Device, Formulated Amikacin,
or Product manufactured by Nektar or its Third Party supplier, Nektar’s or its Affiliate’s cost of
manufacturing such Device, Formulated Amikacin, or Product for Development or Commercial purposes,
which is equal to the sum of (a) for the Device, Formulated Amikacin or Product (or components
thereof) made by Nektar, the costs of all direct material, direct labor, and allocable
manufacturing overhead consumed, provided or procured by Nektar, in each case for the manufacture
of the Device, Formulated Amikacin, or Product, and (b) for Device, Formulated Amikacin, or Product
(or components thereof) made by Nektar’s Third Party supplier, the out-of-pocket costs paid to such
Third Party supplier by Nektar, to the extent such costs in (a) and (b) are incurred by Nektar or
its Affiliates and to the extent they are reasonably allocable to the manufacture of such Device,
Formulated Amikacin, or Product. For clarity, Fully Burdened Manufacturing Cost shall not include
any costs of scaling up Manufacturing for the Device or Formulated Amikacin, Development Costs, or
capital expenses (but shall include depreciation on capital expenses incurred for the Manufacture
of Device, Formulated Amikacin, or Product). Fully Burdened Manufacturing Cost shall be calculated
in a manner consistent with GAAP, consistently applied.

          1.46 “GAAP” means United States generally accepted accounting principles consistently applied.

          1.47 “Global Brand Team” or “GBT” has the meaning set forth in Section 3.1.

          1.48 “Global Phase IV Costs” means the expenses incurred in the conduct of Global Phase IV
Trials.

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Commission. Confidential Treatment Requested Under

17 C.F.R. Sections 200.80(b)(4) and 240.24b-2

          1.49 “Global Phase IV Trial” means any Phase IV Clinical Trial that is conducted in order to
benefit the Product in multiple countries, which countries include, but are not limited to, the
Shared Territory, regardless of the country in which it is conducted.

          1.50 “Global Project Team” or “GPT” has the meaning set forth in Section 3.1.

          1.51 “Global Strategic Marketing Team” or “GSM” means the internal Bayer marketing group that
will oversee the global marketing, strategy and planning for the Product, in which [***] will
participate with respect to Product-related matters.

          1.52 “Good Clinical Practices” or “GCP” means the standards, practices and procedures set
forth in the guidelines entitled in “Good Clinical Practice: Consolidated Guideline,” including
related regulatory requirements imposed by the FDA and (as applicable) any equivalent or similar
standards in jurisdictions outside the Shared Territory.

          1.53 “Good Laboratory Practices” or “GLP” means the regulations set forth in 21 C.F.R. Part 58
and the requirements expressed or implied thereunder imposed by the FDA and (as applicable) any
equivalent or similar standards in jurisdictions outside the Shared Territory.

          1.54 “Good Manufacturing Practices” or “GMP” means the regulations set forth in 21 C.F.R.
Parts 210—211, 820 and 21 C.F.R. Subchapter C (Drugs), Quality System Regulations and the
requirements thereunder imposed by the FDA, and, as applicable, any similar or equivalent
regulations and requirements in jurisdictions outside the Shared Territory.

          1.55 “IAS” means International Accounting Standards consistently applied.

          1.56 “IFRS” means International Financial Reporting Standards consistently applied.

          1.57 “IND” means an Investigational New Drug application for the Product, which must be
approved by the FDA (or foreign equivalent) before shipment of such Product intended for
administration to humans.

          1.58 “Indemnified Party” has the meaning set forth in Section 14.3(a).

          1.59 “Indemnifying Party” has the meaning set forth in Section 14.3(a).

          1.60 “Information” means ideas, inventions, discoveries, concepts, formulas, practices,
procedures, processes, methods, knowledge, know-how, trade secrets, technology, designs, drawings,
computer programs, skill, experience, documents, apparatus, results, clinical and regulatory
strategies, test data, including without limitation pharmacological, toxicological and clinical
data, analytical and quality control data, manufacturing data and descriptions, Patent

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Commission. Confidential Treatment Requested Under

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and legal data, market data, financial data or descriptions, devices, assays, chemical
formulations, specifications, compositions of matter, product samples and other samples, physical,
chemical and biological materials and compounds, and the like, in written, electronic or other
form, now known or hereafter developed, whether or not patentable.

          1.61 “Initial Public Disclosure” has the meaning set forth in Section 16.1.

          1.62 “Inventions” has the meaning set forth in Section 11.2(a).

          1.63 “Joint Finance Committee” or “JFC” has the meaning set forth in Section 3.1.

          1.64 “Joint Inventions” has the meaning set forth in Section 11.2(a).

          1.65 “Joint Patent Rights” has the meaning set forth in Section 11.3(a)(iii).

          1.66 “Joint Steering Committee” or “JSC” has the meaning set forth in Section 3.1.

          1.67 “Launch Budget” has the meaning set forth in Section 7.2(a).

          1.68 “Launch Plan” has the meaning set forth in Section 7.2(a).

          1.69 “Local Phase IV Costs” means the expenses incurred in the conduct of Local Phase IV
Trials.

          1.70 “Local Phase IV Trial” means any Phase IV Clinical Trial that is conducted in order to
benefit the Product only in the country in which it is conducted.

          1.71 “MAA” means a marketing authorization application filed with the EMEA for Regulatory
Approval to import, market and sell the Product in the European Union.

          1.72 “Manufacture” or “Manufacturing” means the activities to be performed by Nektar and Bayer
in connection with the manufacture, testing (including without limitation quality control, quality
assurance and lot release testing), bulk packaging and/or storage of Formulated Amikacin, the
Device, and/or the Product, as applicable.

          1.73 “Manufacturing and Supply Agreement” has the meaning set forth in Section 9.1(a).

          1.74 “Milestone Payments” has the meaning set forth in Section 8.3.

          1.75 “Minimum Acceptable Commercialization Profile” or “MACP” means the characteristics of
Product that must be satisfied in order to enable Commercialization of the Product, as set forth in
Exhibit 1.75.

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          1.76 “[***]” has the meaning set forth in Section 7.4.

          1.77 “Nektar” has the meaning set forth in the Preamble.

          1.78 “Nektar Know-How” means all Information that is (a) Controlled by Nektar or Aerogen as of
the Effective Date or at any time during the term of this Agreement that is not publicly known,
even though parts thereof may be known, and (b) useful or necessary to develop, make, use, sell,
offer for sale, import or export Product for use in the Field. Nektar Know-How includes without
limitation the [***]. Nektar Know-How includes Nektar’s or Aerogen’s interest in unpublished
Inventions and unpublished Joint Inventions. Nektar Know-How does not include Nektar Patent
Rights.

          1.79 “Nektar Patent Rights” means (a) the Patents listed in Exhibit 1.79, (b) any Patents that
issue from the Patent Applications listed in Exhibit 1.79, (c) any Patents and/or Patent
Applications that claim priority to a Patent or Patent Application listed in Exhibit 1.79,
including without limitation any continuation, continued prosecution application, divisional,
reissue or re-examination, (d) any other Patent and/or Patent Application Controlled by Nektar or
Aerogen as of the Effective Date or at any time during the term of this Agreement that claims a
product, method, apparatus, material, manufacturing process or other technology necessary to
develop, make, use, sell, offer for sale, import or export Formulated Amikacin, the Device, or
Product, and (e) any foreign equivalents of 1.79(a), (b), (c) or (d). Nektar Patent Rights
include, without limitation, the Patents and Patent Applications [***]. Nektar Patent Rights
includes Nektar’s or Aerogen’s interest in Joint Patent Rights. Nektar Patent Rights do not
include Nektar Know-How.

          1.80 “Nektar Trademarks” means the trademarks set forth in Exhibit 1.80 and any Trademarks of
Nektar or Aerogen that are developed during the term of this Agreement for use with the Product.

          1.81 “Net Sales” means the gross amount billed by Bayer, its Affiliates or Sublicensees to
Third Parties throughout the Territory for sales of the Product, less (a) sales returns and
allowances, including trade, quantity and cash discounts and any other adjustments, including those
granted on account of price adjustments, billing errors, rejected goods, damaged goods, returns,
rebates, chargeback rebates, fees, reimbursements or similar payments granted or given to
wholesalers or other distributors, buying groups, healthcare insurance carriers or other
institutions, (b) accrued allowances for normal and customary trade, quantity and cash discounts,
(c) an aggregate flat percentage of [***] (regardless of actual cost) for all of the following
actually invoiced to the Third Party: freight, transportation, insurance, handling, packing and
distribution charges, (d) the lower of [***] or the actual loss experience of the global
Bayer-Schering Pharmaceuticals group in respect of bad debts written off, provided, however, that
such amount shall not exceed [***] on an annual basis, (e) customs or excise taxes including import
duties and other duties relating to sales, (f) any payment in respect to sales to any governmental
authority in respect of any government subsidized program, including without limitation

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Medicare and Medicaid rebates and (g) any item substantially similar in character and/or
substance to the above, all as determined in accordance with IFRS or IAS on a basis consistent with
Bayer’s annual audited financial statements. In addition, Net Sales by Bayer hereunder are subject
to the following:

               (1) Any transfer, sale or other disposal of the Product by Bayer to an Affiliate of Bayer will
not be included in Net Sales; in such case, Net Sales shall be calculated as above on the value
charged or invoiced on the first arm’s length sale to a Third Party;

               (2) If Bayer or its Affiliates or Sublicensees make a sale or other disposition of the Product
to a customer in a particular country (i) other than on normal commercial terms or (ii) as part of
a package of products and services, the Net Sales of the Product shall be deemed to be “the fair
market value” of such Product (i.e., the value that would have been derived had said Product been
sold as a separate product to a similar customer in the country concerned on normal commercial
terms); and

               (3) Use of the Product in clinical or pre-clinical trials or other research or development
activities or disposal of the Product for non-profit purposes of a commercially reasonable program
shall not give rise to any deemed sale for purposes of this definition.

For clarity, Net Sales excludes Net Sublicense Revenues.

          1.82 “Net Sublicense Revenues” means all revenues or other consideration received by a Party
from Third Parties as consideration for the grant of a sublicense or license under this Agreement
in the Shared Territory, other than royalties received from such Third Parties on Net Sales.

          1.83 “New Drug Application” or “NDA” means (a) the single application or set of applications
for the Product and/or pre-market approval to make and sell commercially the Product, filed by
Bayer with the FDA, and (b) any related registrations with or notifications to the FDA.

          1.84 “Non-Publishing Party” has the meaning set forth in Section 16.1.

          1.85 “OIG” means the Office of the Inspector General.

          1.86 “Party” or “Parties” has the meaning set forth in the Preamble.

          1.87 “Patent” means (a) letters patent (or other equivalent legal instrument), including
without limitation utility and design patents, and including without limitation any extension,
substitution, registration, confirmation, reissue, re-examination or renewal thereof and (b) all
foreign or international equivalents of any of the foregoing in any country in the Territory.

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          1.88 “Patent Application” means (a) an application for letters patent, including without
limitation a reissue application, a re-examination application, a continuation application, a
continued prosecution application, a continuation-in-part application, a divisional application or
any equivalent thereof that is pending at any time during the term of this Agreement before a
government Patent agency and (b) all foreign or international equivalents of any of the foregoing
in any country in the Territory.

          1.89 “PDDS Platform Technology” means any technology, article of manufacture, component,
system, discovery, or invention that relates to the [***] and methods of making or using the [***].
For the avoidance of doubt, [***].

          1.90 “Phase I Clinical Trial” means any clinical study conducted on sufficient numbers of
human subjects to establish that the Product is reasonably safe for continued testing and to
support its continued testing in Phase II Clinical Trials. “Phase I Clinical Trial” shall include
without limitation any clinical trial that would satisfy requirements of 21 C.F.R. § 312.21(a).

          1.91 “Phase II Clinical Trial” means any clinical study conducted on sufficient numbers of
human subjects that have the targeted disease or condition of interest to investigate the safety
and efficacy of the Product for its intended use and to define warnings, precautions, and adverse
reactions that may be associated with such pharmaceutical product in the dosage range to be
prescribed. “Phase II Clinical Trial” shall include without limitation any clinical trial that
would satisfy requirements of 21 C.F.R. § 312.21(b).

          1.92 “Phase III Clinical Trial” means any clinical study intended as a pivotal study for
purposes of seeking Regulatory Approval that is conducted on sufficient numbers of human subjects
to establish that the Product is safe and efficacious for its intended use, to define warnings,
precautions, and adverse reactions that are associated with the Product in the dosage range to be
prescribed, and to support Regulatory Approval of the Product or label expansion of such
pharmaceutical product. “Phase III Clinical Trial” shall include without limitation any clinical
trial that would or does satisfy requirements of 21 C.F.R. § 312.21(c), whether or not it is
designated a Phase III Clinical Trial.

          1.93 “Phase IV Clinical Trial” means clinical study of the Product on human subjects commenced
after receipt of Regulatory Approval of the Product for the purpose of satisfying a condition
imposed by a Regulatory Authority to obtain Regulatory Approval, or to support the marketing of
such pharmaceutical product, and not for the purpose of obtaining initial Regulatory Approval of
the Product.

          1.94 “PhRMA Code” means the Pharmaceutical Research and Manufacturers of America Code on
Interactions with Healthcare Professionals, as hereafter amended from time to time.

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          1.95 “Plan” means Development Plan, Commercialization Plan, or Launch Plan, as applicable.

          1.96 “Pre-Launch Activities” means all Commercialization activities undertaken with respect to
the Product in the Shared Territory prior to Commercial Launch and in preparation for the launch of
the Product in the Shared Territory. Pre-Launch Activities shall include without limitation
advertising, education, product-related public relations, health care economic studies,
governmental affairs activities for reimbursement and formulary acceptance, sales force training,
and other activities included within the Launch Plan or the Commercialization Plan that are to be
conducted in the Shared Territory prior to the Commercial Launch of the Product and shall exclude
all Development activities and the [***].

          1.97 “Pre-Launch Costs” means the costs, excluding Development Costs, specifically
attributable to the Pre-Launch Activities in the Shared Territory that are generally consistent
with the approved Launch Plan and the Commercialization Plan.

          1.98 “Product” means the combination of (a) Formulated Amikacin and (b) the Device for use in
the Pulmonary Delivery of Formulated Amikacin, which Product is developed in accordance with and
pursuant to this Agreement. Product shall not include any products including nebulizer devices
based upon the PDDS Platform Technology for use or sale with any active ingredients other than
Amikacin, or any products including devices that are not based upon the PDDS Platform Technology.

          1.99 “Product Profit and Loss” means the revenues and expenses resulting from the
Commercialization activities (other than Pre-Launch Costs) for Product in the Shared Territory, and
shall be equal to (a) Net Sales less Allowable Expenses plus (b) Net Sublicense Revenues.

          1.100 “Project” means the collaborative Development and Commercialization of the Product to be
conducted by or on behalf of Nektar and Bayer under this Agreement.

          1.101 “Pulmonary Delivery” means the [***].

          1.102 “Regional Business Unit” or “RBU” has the meaning set forth in Section 3.1.

          1.103 “Regulatory Approval” means (a) in the Shared Territory, approval by the FDA of an NDA
or other applicable filing and satisfaction of related applicable FDA registration and notification
requirements, if any, and (b) in any country other than the Shared Territory, approval by
Regulatory Authorities having jurisdiction in such country of a single application or set of
applications comparable to an NDA or other applicable filing and satisfaction of related applicable
regulatory and notification requirements, if any, together with any other approval necessary to
make and sell the Product commercially in such country, including without limitation any pricing
approvals.

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          1.104 “Regulatory Authority” means any applicable supra-national, federal, national, regional,
state, provincial or local regulatory agencies, departments, bureaus, commissions, councils or
other government entities, including, without limitation, the FDA and the EMEA, regulating or
otherwise exercising authority with respect to the Exploitation of the Product in the Territory.

          1.105 “[***]” means the [***].

          1.106 “Royalty Territory” means the world, excluding the Shared Territory.

          1.107 “Shared Territory” means the United States, its territories and possessions.

          1.108 “Sublicensee” means any person or entity, including without limitation Affiliates of a
Party, to which either (a) Bayer grants a sublicense to the extent useful or necessary as set forth
under this Agreement (other than Nektar or its Affiliates), or (b) Nektar grants a sublicense to
the extent useful or necessary for Nektar to fulfill its obligations under this Agreement (other
than Bayer or its Affiliates).

          1.109 “[***]” means that [***].

          1.110 “Territory” means the Royalty Territory and the Shared Territory.

          1.111 “Third Party” means any person or entity other than Bayer, Nektar, or an Affiliate of
either of them.

          1.112 “Trademark” means any word, name, symbol, color, designation or device or any
combination thereof, whether registered or unregistered, including, without limitation, any
trademark, trade dress, service mark, service name, brand mark, trade name, brand name, logo or
business symbol.

          1.113 “[***]” has the meaning set forth in Section 7.3.

          1.114 “Valid Claim” means, for a country, a claim of an unexpired issued Patent or a pending
Patent Application filed and kept pending in good faith, where either or both (a) such Patent or
Patent Application is included in either the Patents or Patent Applications licensed to Bayer under
this Agreement, or (b) such claim directed to an Invention made solely or jointly by Nektar
(whether or not assigned to Bayer pursuant to Article 11) that in the absence of ownership thereof
or a license thereto, would be infringed by the Exploitation of the Product and that has not been
(i) cancelled with prejudice, (ii) withdrawn from consideration without the ability to submit or
refile, (iii) finally determined to be unallowable by the applicable governmental authority (and
from which no appeal is or can be taken), (iv) finally determined to be invalid or unenforceable by
a court of competent jurisdiction, (v) disclaimed, or (vi) abandoned. For purposes hereof, a claim
in a Patent Application that has not been granted before

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the later to occur of (A) the date that is [***], or (B) the date of [***], shall not be
considered to be a Valid Claim unless and until it is granted.

     2. License Grants 

          2.1 License Grants to Bayer.

               (a) Royalty Territory License. Subject to the terms and conditions of this Agreement, Nektar
and Aerogen hereby grant to Bayer:

                    (i) an exclusive (even as to Nektar, Aerogen and their Affiliates), royalty-bearing license,
with the right to grant sublicenses in accordance with Section 2.3, under the Nektar Know-How and
Nektar Patent Rights, to make, have made, use, have used, promote, develop, offer to sell, sell,
have sold, import, have imported, export, have exported, and market Formulated Amikacin and Product
in the Field throughout the Royalty Territory solely in connection with Exploitation of the Product
in the Field throughout the Royalty Territory, provided that the foregoing license is subject to
Nektar’s right to Manufacture as set forth in Article 9;

                    (ii) a non-exclusive, royalty-free license, under the Nektar Trademarks, with the right to
grant sublicenses in accordance with Section 2.3, throughout the Royalty Territory, to use and
display the Nektar Trademarks in connection with the Commercialization of the Product in the Field
throughout the Royalty Territory, as provided under and in accordance with Section 7.7 and Article
17; and

                    (iii) a non-exclusive, royalty-bearing license, under the Nektar Know-How and Nektar Patent
Rights, with the right to grant sublicenses in accordance with Section 2.3, in the Field throughout
the Royalty Territory, to use, have used, promote, offer to sell, sell, have sold, import, have
imported, export, have exported, and market the Device solely in connection with Exploitation of
the Product in the Field throughout the Royalty Territory.

               (b) Shared Territory License. Subject to the terms and conditions of this Agreement, Nektar
and Aerogen hereby grant to Bayer:

                    (i) a co-exclusive (with Nektar and its Affiliates), license, subject to the payment of a
share of profits as provided in this Agreement, with the right to grant sublicenses in accordance
with Section 2.3, under the Nektar Know-How and Nektar Patent Rights, to make, have made, use, have
used, promote, offer to sell, sell, have sold, import, have imported, export, have exported, and
market Formulated Amikacin and the Product in the Field throughout the Shared Territory solely in
connection with Exploitation of the Product in the Field throughout the Shared Territory, provided
that the foregoing license is subject to Nektar’s right to Manufacture as set forth in Article 9;

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                    (ii) a non-exclusive, royalty-free license, under the Nektar Trademarks, with the right to
grant sublicenses in accordance with Section 2.3, throughout the Shared Territory, to use and
display the Nektar Trademarks in connection with the Commercialization of the Product in the Field
throughout the Shared Territory, as provided under and in accordance with Section 7.7 and Article
17; and

                    (iii) a non-exclusive license, under the Nektar Know-How and Nektar Patent Rights, subject to
the payment of a share of profits as provided in this Agreement, with the right to grant
sublicenses in accordance with Section 2.3, in the Field throughout the Shared Territory, to use,
have used, promote, offer to sell, sell, have sold, import, have imported, export, have exported,
and market the Device solely in connection with Exploitation of the Product in the Field throughout
the Shared Territory.

               (c) The exclusive and co-exclusive licenses granted in Section 2.1(a)(i) and Section
2.1(b)(i), respectively, are subject to any pre-existing rights granted to a Third Party by Aerogen
under the agreement attached in Exhibit 1.24.

          2.2 Certain Covenants. Each Party covenants and agrees that (a) it shall not, and it shall
cause its Affiliates and Sublicensees not to, use or practice the intellectual property rights
licensed under this Agreement except as expressly permitted by this Agreement and (b) any use or
practice of the intellectual property rights licensed under this Agreement except as expressly
permitted by this Agreement that results in material harm to the other Party shall constitute a
material breach of a material obligation of this Agreement.

          2.3 Sublicense Rights. Bayer’s right to grant sublicenses under the licenses granted to it
under Section 2.1, and Nektar’s right to grant sublicenses under the licenses granted to it under
Section 11.2(a)(ii) shall be subject to the following: (a) each Sublicensee shall agree to be
bound by all of the applicable terms and conditions of this Agreement; (b) the terms of each
sublicense granted by a Party shall provide that the Sublicensee shall be subject to the terms and
conditions of this Agreement; (c) a Party’s grant of any sublicense shall not relieve the Party
from any of its obligations under this Agreement; (d) the granting Party shall remain jointly and
severally liable for any breach of a sublicense by a Sublicensee to the extent that such breach
would constitute a breach of this Agreement, and any breach of the sublicense by the Sublicensee
shall be deemed a breach of this Agreement by the Party to the extent that such breach would
constitute a breach of this Agreement; (e) each Party will notify the other Party of the identity
of any Sublicensee, and the territory in which it has granted such sublicense, promptly after
entering into any sublicense; (f) Bayer will not have the right to grant sublicenses, under any
rights granted to Bayer by Nektar in Sections 2.1(a)(i), to a Third Party during the term of this
Agreement for the promotion or marketing of Product in [***] without Nektar’s prior written
consent, which consent shall not be unreasonably withheld or delayed; (g) Bayer will not have the
right to grant sublicenses under any rights granted to Bayer by Nektar in Section 2.1(b) to a Third
Party during the term of this Agreement for the promotion or marketing of the Product in the Shared
Territory without Nektar’s prior written consent, which consent shall not be

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unreasonably withheld or delayed; provided, however, that Bayer may grant sublicenses under
any rights granted to Bayer by Nektar in Section 2.1(b) without Nektar’s prior written consent in
the event that Nektar opts out pursuant to Section 8.2(b)(ii), this Agreement is terminated by
Bayer pursuant to Section 18.4 for breach of this Agreement by Nektar, or Bayer elects a Royalty
Conversion in accordance with Section 20.2(b); and (h) Nektar will not have the right to grant
sublicenses, under any rights granted to Nektar by Bayer in Section 11.2(a)(ii), to a Third Party
during the term of this Agreement for the promotion or marketing of Product in the Field in the
Territory without Bayer’s prior written consent, which consent shall not be unreasonably withheld
or delayed.

          2.4 No Implied Rights or Licenses. Neither Party grants to the other Party any rights or
licenses in or to any Patent or other intellectual property right, whether by implication, estoppel
or otherwise, except to the extent expressly provided for under this Agreement.

          2.5 Exclusivity. Notwithstanding any other provision of this Agreement, during the term of
this Agreement, neither Party shall develop (including without limitation conducting or sponsoring
Clinical Trials), market, sell, manufacture, or commercialize, directly or indirectly, any product
containing any [***] amelioration, treatment or prevention of [***], other than the Product under
this Agreement. For clarity, the foregoing shall not limit either Party’s ability to develop,
market, sell, manufacture or commercialize, directly or indirectly, any product containing an [***]
amelioration, treatment or prevention of [***].

          2.6 Covenant Not to Sue. During the term of this Agreement, Bayer agrees that neither it nor
its Sublicensees will, and Bayer shall cause its Affiliates not to, assert against Nektar, its
subsidiaries, Affiliates or Sublicensees, any claim, or institute any action or proceeding, whether
at law or equity, under any intellectual property rights, including without limitation Patents or
Patent Applications, based on Nektar’s, its Affiliates’ or Sublicensees’ development, manufacture,
use, practice, importation or sale of the Device, Formulated Amikacin or the Product in the Field
and in the Territory pursuant to this Agreement. This covenant shall be binding upon, and inure to
the benefit of, the Parties, their successors, and assigns.

          2.7 Reserved Rights. This Agreement is subject to the rights reserved by [***] or by the U.S.
government under Title 35 of the United States Code Sections 200 through 204.

     3. Governance 

          3.1 General. Promptly after the Effective Date, the Parties shall establish a joint steering
committee (the “Joint Steering Committee” or “JSC”) in accordance with Section 3.2(a) to oversee
the Parties’ performance under this Agreement, and a joint finance committee (the “Joint Finance
Committee” or “JFC”) in accordance with Section 3.3(a) to

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oversee financial and budgetary aspects of the Parties’ activities under this Agreement.
Additionally, Nektar shall have the right to appoint [***] to Bayer’s internal Global Project Team
for the Product (the “Global Project Team” or “GPT”) in accordance with Section 3.4(a), which will
oversee the clinical Development of the Product pursuant to this Agreement, [***] to Bayer’s
internal Global Brand Team for the Product (the “Global Brand Team” or “GBT”) in accordance with
Section 3.5(a), which will oversee the Commercialization of the Product pursuant to this Agreement,
and [***] to Bayer’s internal U.S. Regional Business Unit for the Product (the “Regional Business
Unit” or “RBU”) in accordance with Section 3.6(a), which will implement strategies for Commercial
Launch of the Product in the Shared Territory, and oversee such launch activities, subject to
oversight of the GBT. Each of these committees and teams shall have the responsibilities and
authority allocated to it in this Article 3 and elsewhere in this Agreement. Each of these
committees and teams shall make decisions consistent with the goal of implementing the Plans and
conducting other activities under this Agreement in a manner consistent with the optimization of
Product Development and Commercialization. The representatives of each Party on any committee
shall be responsible for ensuring that their decisions and actions are consistent with the views
of, and have been approved by, the Party that appointed them. The following procedures shall apply
to each of the committees established under this Agreement and to the GPT, RBU and GBT, as
applicable.

          3.2 Joint Steering Committee.

               (a) Composition. Each Party shall appoint [***] to serve on the JSC. Bayer’s initial JSC
representatives shall be [***]. Nektar’s initial JSC representatives shall be [***]. The initial
JSC chairperson shall be [***], who shall serve in such capacity for a period of twelve (12)
months. Thereafter, the member of the JSC who shall serve as the JSC chairperson shall be
designated alternately by each Party, with each chairperson serving for a period of twelve (12)
months. Each Party may replace its JSC representatives by written notice to the other Party.

               (b) Responsibilities. The JSC shall oversee and monitor the direction and course of the
activities to be conducted hereunder. Without limiting the generality of the foregoing, the JSC
shall: (i) review, provide comment on, and approve Plans and related budgets; (ii) review the
activities and obligations of the Parties and the JFC under this Agreement; (iii) resolve any
disputes or disagreements submitted to it by the JFC, the GPT, or the GBT, and, if applicable,
submit disputes or disagreements that it does not resolve within the time provided in Section
3.2(c) to designated Executives of the Parties, as further described in Section 3.2(d); (iv) review
all material data arising in the course of activities conducted pursuant to this Agreement by
either Party; (i) appoint subcommittees as it deems appropriate for carrying out the Project; and
(vi) perform such other functions as appropriate to further the purposes of this Agreement as
determined by the Parties, including without limitation the periodic evaluation of performance
against goals.

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               (c) Meetings and Voting. The JSC shall meet at least once a calendar quarter at times
mutually agreed upon by the Parties. At least two (2) such meetings per calendar year must be held
in person, and all other such meetings may be held by teleconference or videoconference. The
location of the meetings of the JSC to be held in person shall alternate between sites designated
by each Party, with the first such meeting to be held in San Carlos, California, U.S.A., and the
second such meeting to be held in Berlin, Germany. Each Party shall bear all the expenses of its
representatives on the JSC, and such expenses shall not be included in Allowable Expenses. The JSC
chairperson shall issue an agenda reasonably in advance of each meeting and shall appoint one (1)
member to keep accurate minutes of each meeting, which appointment shall be effective upon approval
of the other Party, such approval not to be unreasonably withheld or delayed. Each of Bayer and
Nektar shall have one (1) collective vote on the JSC regardless of how many representatives such
Party has on the JSC, and any matter voted on shall require the unanimous vote of both Parties. If
a disagreement among members of the JSC remains unresolved for more than thirty (30) days after the
JSC first addresses such matter (or such longer period as the Parties may mutually agree upon),
such disagreement shall be resolved in accordance with Section 3.2(d). The JSC shall have no power
to amend or waive compliance with this Agreement.

               (d) Dispute Resolution. If the JSC is unable to resolve any dispute, controversy, or claim
arising under this Agreement within thirty (30) days after it first addresses such matter (or such
longer period as the Parties may mutually agree upon), then the dispute shall be referred to senior
executive officers of each Party having authority to make decisions in such matters (“Executives”)
of each Party. In the event the Executives of each Party are unable to resolve the dispute within
thirty (30) days after receiving notice of the dispute (or such longer period as the Parties may
mutually agree upon), then the following shall apply: Matters submitted to the JSC and the
Executives pursuant to this Section 3.2(d) that remain unresolved by the JSC or the Executives (i)
that relate to matters set forth in Exhibit 3.2 in the column titled “Bayer Lead” shall be
finally decided by Bayer, (ii) that relate to matters set forth in Exhibit 3.2 in the
column titled “Nektar Lead” shall be finally decided by Nektar, (iii) that relate to matters set
forth in Exhibit 3.2 in the column titled “Co-Lead” shall continue to be discussed by the
Executives until such Executives agree upon a resolution of such matter, and (iv) that relate to
matters not set forth in Exhibit 3.2 shall be submitted upon the initiative of either
Party after expiration of the thirty (30) day Executive discussion period for resolution by a court
of competent jurisdiction as set forth in Section 20.10. For clarity, matters relating to a
Party’s alleged breach of its obligations under this Agreement shall not be finally decided by
either Party but may be submitted for resolution by either Party after such matter has been
discussed by the Executives for the foregoing thirty (30) day period to a court of competent
jurisdiction as set forth in Section 20.10.

          3.3 Joint Finance Committee.

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               (a) Composition. Each Party shall appoint [***] to serve on the JFC prior to the first
meeting of the JFC. The initial JFC chairperson shall be appointed by Bayer and shall serve in
such capacity for a period of twelve (12) months. Thereafter, the member of the JFC who shall
serve as the JFC chairperson shall be designated alternately by each Party, with each chairperson
serving for a period of twelve (12) months. Each Party may replace its JFC representatives by
written notice to the other Party.

               (b) Responsibilities. The JFC shall oversee the preparation and implementation of all
Development Budgets, Launch Budgets, and Commercialization Budgets, establish a policy (no more
than ninety (90) days after the Effective Date) for the appropriate level of detail to be reported
in calculating Allowable Expenses and Product Profit and Loss, designate policies for the Parties’
reporting and recording of Allowable Expenses and calculation of Product Profit and Loss and other
financial terms set forth in this Agreement, approve all variances from the applicable budgets,
establish the Commercialization FTE Rate at least six (6) months prior to commencement of
Commercialization activities in the Shared Territory (including without limitation Pre-Launch
Activities), as well as determine appropriate annual adjustments to the Commercialization FTE Rate
to reflect relevant price indices, and, as directed by the JSC, perform other activities as
appropriate to effect the intent of this Agreement.

               (c) Meetings and Voting. The JFC shall meet at least once per month, unless otherwise
specified by the JSC, at times mutually agreed upon by the Parties. At least four (4) such
meetings per calendar year must be held in person, and all other such meetings may be held by
teleconference or videoconference. Each Party shall bear all the expenses of its representatives
on the JFC. Such expenses shall not be included in Allowable Expenses. The location of the JFC
meetings shall alternate between sites designated by each Party, with the first such meeting of the
JFC to be held in person to be in Berlin, Germany, and the second such meeting to be held in San
Carlos, California, U.S.A. The JFC chairperson shall issue an agenda reasonably in advance of each
meeting and shall appoint one (1) member to keep accurate minutes of each meeting, which
appointment shall be effective upon approval of the other Party, such approval not to be
unreasonably withheld or delayed. Each of Bayer and Nektar shall have one (1) collective vote on
the JFC regardless of how many representatives such Party has on the JFC, and any matter voted on
shall require the unanimous vote of both Parties. If a disagreement among members of the JFC
remains unresolved for more than thirty (30) days after the JFC first addresses such matter (or
such longer period as the Parties may mutually agree upon), such disagreement shall be submitted to
the JSC for resolution. The JFC shall have no power to amend or waive compliance with this
Agreement.

               (d) All committees and teams identified in this Agreement shall prepare the budgets and plans
for which they are responsible as provided for herein within ninety (90) days after the Effective
Date.

          3.4 Global Project Team.

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               (a) Composition. Nektar shall appoint [***] to serve on the GPT prior to the first meeting of
the GPT. Bayer may appoint to the GPT [***]. The GPT chairperson shall be appointed by Bayer.
Each Party may replace GPT representatives by written notice to the other Party.

               (b) Responsibilities. Within ninety (90) days after the Effective Date, the GPT may propose
updates to the Development Plan and Development Budget for approval by the GBT and then by the JSC,
coordinate the supply of the Product for use in non-clinical and clinical trials of the Product,
oversee the Parties’ implementation of the Development Plan and Development Budget as directed by
the JSC, and perform other activities as appropriate to effect the intent of this Agreement.

               (c) Meetings. The GPT shall meet at least once per calendar quarter. At least two (2) such
meetings per calendar year must be held in person, and all other such meetings may be held by
teleconference or videoconference. Each Party shall bear all the expenses of its representatives
on the GPT. Such expenses shall not be included in Allowable Expenses. The location of the
meetings of the GPT to be held in person shall be determined by Bayer. The GPT chairperson shall
issue an agenda reasonably in advance of each meeting and shall appoint one (1) member to keep
accurate minutes of each meeting, which appointment shall be effective upon approval of the other
Party, such approval not to be unreasonably withheld or delayed. The GPT shall have no power to
amend or waive compliance with this Agreement.

          3.5 Global Brand Team.

               (a) Composition. Prior to the first meeting of the GBT, Nektar shall appoint [***] to serve
both on the GSM and [***] on the GBT. Bayer may appoint to the GBT [***], at least one of whom
shall be a representative from the GSM. The GBT chairperson shall be such GSM representative. Each
Party may replace GBT representatives by written notice to the other Party.

               (b) Responsibilities. The GBT shall be responsible for preparation of launch,
Commercialization and life cycle management strategies in the form of Launch Plans, Launch Budgets,
Commercialization Plans and Commercialization Budgets for approval by the JSC, and shall oversee
the Commercial supply of Formulated Amikacin, the Device and the Product, prepare materials for
supporting Commercialization of the Product, plan training activities for [***] and sales
representatives, determine if any Global Phase IV Trials are to be conducted, and perform other
activities as appropriate to effect the intent of this Agreement. At least one (1) of each Party’s
representatives shall also present to and gain approval from the representative’s own Party for the
Launch Plans, Launch Budgets, Commercialization Plans and Commercialization Budgets, and any
subsequent revisions thereto, before the GBT proposes such Launch Plans, Launch Budgets,
Commercialization Plans, and Commercialization Budgets to the JSC.

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               (c) Meetings. The GBT shall meet at least once per calendar quarter. At least two (2) such
meetings per calendar year must be held in person, and all other such meetings may be held by
teleconference or videoconference. Each Party shall bear all the expenses of its representatives
on the GBT. Such expenses shall not be included in Allowable Expenses, except that expenses of GBT
members who are also members of the GSM shall be included in Allowable Expenses. The location of
the meetings of the GBT to be held in person shall be determined by Bayer. The GBT chairperson
shall issue an agenda reasonably in advance of each meeting and shall appoint one (1) member to
keep accurate minutes of each meeting, which appointment shall be effective upon approval of the
other Party, such approval not to be unreasonably withheld or delayed. The GBT shall have no power
to amend or waive compliance with this Agreement.

          3.6 U.S. Regional Business Unit.

               (a) Composition. Nektar shall appoint [***] to serve on the RBU for the Shared Territory
prior to the first meeting of the RBU for the Product. Bayer may appoint to the RBU for the
Product [***]. The RBU chairperson shall be appointed by Bayer. Each Party may replace RBU
representatives by written notice to the other Party.

               (b) Responsibilities. The RBU shall oversee the implementation of the Launch Plan and the
Commercialization Plan approved by the JSC for Commercial Launch in the Shared Territory and
oversee the conduct of Local Phase IV Trials in the Shared Territory, subject to the oversight of
the GBT.

               (c) Meetings. The RBU shall meet at least once per calendar quarter. At least two (2) such
meetings per calendar year must be held in person, and all other such meetings may be held by
teleconference or videoconference. The location of the meetings of the RBU to be held in person
shall be determined by Bayer. The expenses of RBU members shall be included in Allowable Expenses.
The RBU chairperson shall issue an agenda reasonably in advance of each meeting and shall appoint
one (1) member to keep accurate minutes of each meeting, which appointment shall be effective upon
approval of the other Party, such approval not to be unreasonably withheld or delayed. The RBU
shall have no power to amend or waive compliance with this Agreement.

          3.7 Nektar Participation in Committees and Teams. Nektar’s membership in each of the JSC and
JFC, and participation in each of Bayer’s internal GPT, GBT and RBU, shall be at its sole
discretion, as a matter of right and not obligation, for the sole purpose of participation in
governance, decision making and information exchange with respect to activities within the
jurisdiction of such committee, team, or unit. At any time prior to the disbanding of, or
withdrawing Nektar’s membership or participation in, such committee or internal team or unit
pursuant to Section 3.8, Nektar shall have the right to withdraw from membership or participation
in any or all of the committees, teams, or units upon thirty (30) days’ prior written notice to
Bayer, which notice shall be effective as to the relevant committee, team, or unit

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specified in such notice upon the expiration of such thirty (30) day period (“Withdrawal
Notice”). Following the issuance of a Withdrawal Notice for a given committee, team, or unit, (a)
the applicable committee, team, or unit shall be disbanded or, if it is an internal Bayer team or
unit, Nektar’s participation therein shall be withdrawn and Bayer may elect to continue such
internal team or unit in its discretion, subject to this Section 3.7, (b) the decisions formerly
made by the team or unit from which Nektar has elected to withdraw shall be made as set forth in
Section 3.9, and (c) Nektar shall have the right to continue to receive the information it would
otherwise be entitled to receive under the Agreement.

          3.8 Disbanding of Committees and Withdrawal from Teams or Units. The Parties shall have the
right to disband either or both of the JSC or JFC, and/or withdraw Nektar’s participation in each
of Bayer’s internal GPT, GBT and RBU, upon mutual agreement. Additionally, to the extent the
applicable committee is not disbanded or Nektar’s participation in the applicable team or unit is
not withdrawn pursuant to Section 3.7, such committees, teams, or units shall be automatically
disbanded or Nektar’s participation therein shall be withdrawn, as applicable, as set forth below:

               (a) The JSC shall be automatically disbanded upon the later of (i) expiration or termination
of the obligation to pay royalties in the Royalty Territory, or (ii) discontinuation of
Commercialization activities in the Shared Territory.

               (b) The JFC shall be automatically disbanded upon the later of (i) expiration or termination
of the obligation to pay royalties in the Royalty Territory, or (ii) discontinuation of
Commercialization activities in the Shared Territory.

               (c) Nektar’s participation in the GPT shall be automatically withdrawn [***] years after the
last to occur Regulatory Approval of the Product in the United States, Japan or Europe.

               (d) Nektar’s participation in the GBT shall be automatically withdrawn upon the later of (i)
expiration or termination of the obligation to pay royalties in the Royalty Territory, or (ii)
discontinuation of Commercialization activities in the Shared Territory.

               (e) Nektar’s participation in the RBU shall be automatically withdrawn upon the later of (i)
expiration or termination of the obligation to pay royalties in the Royalty Territory, or (ii)
discontinuation of Commercialization activities in the Shared Territory.

          3.9 Decision Making After Withdrawal from or Disbanding of Committees. If Nektar elects to
withdraw from the JSC and/or the JFC under Section 3.7, or if either such committee is disbanded
pursuant to Section 3.8, then after such withdrawal or disbanding, the following shall apply to
decisions formerly within the jurisdiction of the committee(s) from which Nektar has withdrawn or
that has been disbanded:

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               (a) Decisions formerly within the jurisdiction of the JSC shall be submitted for resolution by
senior officers of each Party, subject to the decision making processes and principles set forth in
Sections 3.2(c) and 3.2(d) as if Sections 3.2(c) and 3.2(d) applied to decisions to be made by such
senior officers rather than to decisions to be made by the JSC.

               (b) Decisions formerly within the jurisdiction of the JFC shall be submitted for resolution by
the JSC, if it then exists, or otherwise by senior officers appointed by each Party as described in
Section 3.9(a).

     4. Development Program

          4.1 Project. Bayer and Nektar shall collaborate to Develop the Product. Nektar shall use
Commercially Reasonable Efforts, and shall have primary control and direction in the Project for
developing and Manufacturing Formulated Amikacin through the completion of Phase III Clinical
Trials, developing and Manufacturing the Device, the conduct of the [***], and the completion of
Phase II Clinical Trials that are ongoing as of the Effective Date. Bayer shall use Commercially
Reasonable Efforts, and shall have primary control and direction in the Project, for the clinical
Development of the Product except for such [***] and Phase II Clinical Trials, the preparation and
submission of regulatory filings for the Product, on a worldwide basis, and further CMC development
of Formulated Amikacin and the final packaging of the Product, obtaining and maintaining all
Regulatory Approvals for the Product in the Shared Territory and in the Royalty Territory, and
generally for the Commercialization of the Product.

          4.2 Development Plan and Development Budget.

               (a) The Development of the Product shall be governed by a global Development plan
(“Development Plan”), and the costs and expenses relating to the Development of the Product shall
be governed by a Development budget (“Development Budget”), the initial forms of which are attached
as Exhibits 4.2(a)(i) and 4.2(a)(ii), respectively. Updates thereto made pursuant to Section
4.2(b) shall be prepared by the GPT, for approval by the JSC. Each Development Plan shall include
without limitation details of all Clinical Trials to be conducted by the Parties to support
Regulatory Approval in the Territory, and related time lines, as well as other material activities
necessary for Development of the Product in the Territory, and shall describe the proposed overall
program of Development for the Product in each applicable country, including without limitation all
preclinical studies, toxicology, pharmacology studies, formulation, process development, clinical
studies, and regulatory plans and other elements of obtaining Regulatory Approval in each
applicable country. The Development Plan and the Development Budget shall be updated at least once
(1) per year and shall cover the following three (3) year period. The Parties have prepared a
portion of the initial Development Plan specifically relating to the Device and a portion of the
initial Development Budget relating to the Device (“Device Budget”) as well as a portion of the
initial Development Plan specifically relating to Formulated Amikacin and a portion of the initial
Development

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Budget relating to Formulated Amikacin (“Drug Budget”), respectively, as of the Effective
Date, which initial budgets are attached as Exhibits 4.2(a)(iii) and 4.2(a)(iv), respectively.

               (b) The GPT shall, on an annual basis, propose updates to the Development Plans and
Development Budgets (including, for clarity, the Device Budget and the Drug Budget) for the
following calendar year. The GPT shall submit such updated Development Plans and Development
Budgets to the JSC (with such Development Budgets first being submitted to the JFC for review and
endorsement), for review and approval by September 30 of each calendar year for the following
calendar year. The JSC shall provide comments on each such updated Development Plan or Development
Budget, as applicable, within fifteen (15) days following their submission. Within thirty (30)
days following such original submission, the JSC shall either approve the Development Plan and
Development Budget or approve a modified Development Plan and Development Budget prepared by the
GPT and endorsed by the JFC, consistent with the objectives for the Product and the aims of the
Project.

               (c) If the actual costs incurred by Bayer under the Drug Budget in meeting Bayer’s obligations
as set forth on Exhibit 4.2(a)(iv) exceed the approved amount set forth in the Drug Budget, Bayer
may spend such additional amounts without reimbursement from Nektar; provided that, if aggregate
actual costs incurred by Bayer exceed [***] of the aggregate approved amount set forth in the Drug
Budget, the Parties agree to discuss whether the economic terms between the Parties should be
restructured to reflect the investment of the additional funds. If the actual costs incurred by
Nektar under the Device Budget in meeting Nektar’s obligations as set forth on Exhibit 4.2(a)(iii)
exceed the approved amount set forth in the Device Budget, Nektar may spend such additional amounts
without reimbursement from Bayer; provided that, if aggregate actual costs incurred by Nektar
exceed [***] of the aggregate approved amount set forth in the Device Budget, the Parties agree to
discuss whether the economic terms between the Parties should be restructured to reflect the
investment of the additional funds.

          4.3 Standard of Performance. Each Party, in performing its activities in connection with the
Project, shall comply with all Applicable Laws, including without limitation where applicable,
then-current GCP, GLP, and GMP.

          4.4 Subcontracting Permitted.

               (a) Bayer acknowledges and agrees that portions of the work to be performed by Nektar under
the Project (including, without limitation, manufacture of the Device) may be performed on behalf
of Nektar by Third Parties, provided that (i) Nektar shall first have obtained written
confidentiality agreements with any such subcontractors and written assignments of, or equivalent
rights under, all Patent rights and know-how that such subcontractors may develop by reason of work
performed under this Agreement, (ii) Nektar may not subcontract obligations to co-promote in the
Shared Territory without Bayer’s prior written consent (which consent may not be unreasonably
withheld or delayed), unless the GBT has

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previously approved such subcontracting, and (iii) Nektar shall be and remain responsible to
Bayer for the performance of its subcontractors.

               (b) Nektar acknowledges and agrees that portions of the work to be performed by Bayer under
the Project (including, without limitation, manufacture of Formulated Amikacin for commercial use)
may be performed on behalf of Bayer by Third Parties, provided that (i) Bayer shall first have
obtained written confidentiality agreements with any such subcontractors and written assignments
of, or equivalent rights under, all Patent rights and know-how that such subcontractors may develop
by reason of work performed under this Agreement, (ii) Bayer may not subcontract obligations to
co-promote in the Shared Territory, without Nektar’s prior written consent (which consent may not
be unreasonably withheld or delayed), and (iii) Bayer shall be and remain responsible to Nektar for
the performance of its subcontractors.

     5. Regulatory Matters 

          5.1 Pharmacovigilance Agreement. The Parties shall, within sixty (60) days after written
request by the JSC, convene a meeting to negotiate in good faith the terms and conditions of a
pharmacovigilance agreement (“Pharmacovigilance Agreement”), which shall establish all material
economic, regulatory, business and technical terms under which the Parties shall collect, monitor,
research, assess and evaluate information from healthcare providers and patients on the adverse
effects, if any, of Formulated Amikacin, the Device and the Product, with a view to identifying new
information about hazards associated with Formulated Amikacin, the Device and the Product and
preventing harm to patients. Within ninety (90) days after the commencement of those negotiations,
the Parties shall exercise Commercially Reasonable Efforts to execute a mutually satisfactory
Pharmacovigilance Agreement.

          5.2 Preparation of Regulatory Filings. Each Party, at such Party’s sole cost and expense
unless otherwise provided for herein, shall be responsible for preparing, filing, and maintaining,
and shall own, the regulatory filings relating to the Product as set forth below:

               (a) At its expense, Nektar shall use Commercially Reasonable Efforts to prepare and maintain
DMFs covering the Device, and Nektar shall own any such DMFs. Nektar shall also use Commercially
Reasonable Efforts to prepare and maintain DMFs covering Formulated Amikacin and the Product;
provided, however, that the Party conducting Manufacturing for Commercialization of the Formulated
Amikacin and Product shall own and maintain any such DMFs, it being understood and agreed that
during the term hereof, such Manufacture of Formulated Amikacin and Product may be conducted by
Bayer. During the term of this Agreement, Nektar grants to Bayer and its Sublicensees a right of
reference to the DMFs for the Device owned by Nektar to the extent necessary for, and for the
purposes of, preparing, filing or maintaining INDs, NDAs, MAAs and other regulatory filings
relating to the Product in the Shared Territory or the Royalty Territory, including without
limitation CMC Data. Nektar shall share with Bayer relevant CMC Data (redacted, if deemed
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opinion) portions of such DMFs, with the right to inspect, upon Bayer’s request. The Party
that owns a DMF shall be responsible for all interactions with Regulatory Authorities relating to
such DMF. The foregoing notwithstanding, all Information required by Bayer for regulatory filings
will be provided to Bayer by Nektar for all countries where such filings are required.

               (b) At its expense, Bayer, its Affiliates and its Sublicensees shall use Commercially
Reasonable Efforts to prepare, obtain and maintain all regulatory dossiers and Regulatory Approvals
covering the Product in the Territory, and shall provide Nektar, [***], with a copy of all
documents included in such regulatory dossiers and Regulatory Approvals. Except as provided in
Section 5.2(a), Bayer or its designee shall be the owner of all such filings and shall be
responsible for all interactions with Regulatory Authorities relating thereto; provided, however,
that at all times during the term hereof, Nektar shall have the opportunity to participate in all
meetings and other communications with Regulatory Authorities relating to the Product, [***]. In
addition to Bayer’s other obligations under this Section 5.2(b), Bayer shall keep Nektar informed,
on a regular basis (but no less frequently than quarterly) of regulatory filings related to the
Product.

               (c) During the term of this Agreement, Bayer grants to Nektar a right of reference (including,
without limitation, the right to inspect) to the CMC Data pertaining to the Product or for Nektar’s
use in applications within the Field that do not conflict with Nektar’s covenants set forth in
Section 2.5.

          5.3 Notice of Communication with Regulatory Authorities. Bayer shall be responsible for
reporting all adverse events and handling all complaints and communications (including without
limitation with Regulatory Authorities) relating to the Product, except in those countries where
the CE Mark owner for the Device is required to communicate Device pharmacovigilance directly to
Regulatory Authorities (in which case Nektar shall report all adverse events and handle all
complaints and communications, including without limitation with Regulatory Authorities, relating
to the Device). Except as otherwise provided for in this Section 5.3, each Party shall provide
quarterly summaries to the other Party of any oral or written communications to or from Regulatory
Authorities on matters related to the Product or which may reasonably be deemed to impact Product
Development, manufacture, Commercialization or Regulatory Approval. Notwithstanding the foregoing,
if Nektar Manufactures Device or Formulated Amikacin at any time during the term of this Agreement,
then Bayer shall notify Nektar of any oral communications, and provide Nektar with copies of any
written communications, to or from Regulatory Authorities on matters related to the Device or
Formulated Amikacin, as applicable, or which may reasonably be deemed to impact Device or
Formulated Amikacin, as applicable, within three (3) business days of receipt of such
communication, or such earlier date as required by Applicable Law or Regulatory Authority.
Moreover, in each such case, Bayer shall give Nektar reasonable opportunity to review and comment
on any proposed response to any such oral or written communications to or from Regulatory
Authorities prior to submitting any response thereto, and provide Nektar with a copy of the final
response as specified herein.

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          5.4 Regulatory Compliance.

               (a) Each of Nektar and Bayer shall reasonably cooperate with the other Party in its efforts
toward ensuring that all government price and gift reporting, sales, marketing and promotional
practices with respect to the Product meet the standards required by Applicable Laws, including
without limitation state and federal laws and regulations, as well as applicable guidelines
concerning the advertising of prescription drug products, the OIG Compliance Guidance Program, the
American Medical Association (the “AMA”) Guidelines on Gifts to Physicians, the PhRMA Code, and the
ACCME Standards.

               (b) Each of Nektar and Bayer shall provide its employees and its contract sales force, if any,
involved in sales, marketing, promotion, or price or gift reporting for the Product appropriate
training on proper marketing and sales techniques. Such training will include, among other topics,
FDA requirements and other state and federal regulations and guidelines concerning the advertising
of prescription drug products, the OIG Compliance Guidance Program, the AMA Guidelines on Gifts to
Physicians, the PhRMA Code, and the ACCME Standards. If requested by the other Party, each of
Nektar and Bayer shall provide a written description of the training to the other Party no less
frequently than on an annual basis.

               (c) Nektar shall provide to Bayer upon request copies of all Nektar documents that are related
to the pricing issues addressed in the CIA and other price reporting obligations of Bayer under
Applicable Laws. This will include, but is not necessarily limited to, a list of all research and
continuing medical education grants, the date of the grant, the amount of the grant, and, if
requested by Bayer, the rationale for the grant.

               (d) Each of Nektar and Bayer shall reasonably cooperate with the other Party to provide the
other Party access to any and all information, data and reports required by the other Party in
order to comply with the relevant provisions of the Medicare Modernization Act and any other
Applicable Laws, including without limitation reporting requirements, in a timely and appropriate
manner. Bayer shall ensure that its reporting to the Centers for Medicare and Medicaid Services
and other federal and state healthcare programs related to the Product is true, complete and
correct in all respects; provided, however, that Bayer shall not be held responsible for submitting
erroneous reports if such deficiencies result from information provided by Nektar which itself was
not true, complete and correct.

               (e) Nektar shall endeavor to prepare and provide to Bayer any data or other information
covered by this Section 5.4 in accordance with methodologies specified by Bayer, and shall advise
Bayer if there is any respect in which it has been unable to do so. If Nektar has a question about
whether a specific transaction or other event needs to be reported to Bayer pursuant to this
Section 5.4, Nektar’s obligation shall be satisfied by delivery of a true, complete and correct
report of such transaction or other event, without a determination as to the proper reporting or
legal characterization of such matter.

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               (f) Bayer shall notify Nektar in advance of submission of any material information provided by
Nektar pursuant to this Section 5.4 that Bayer proposes to submit to any governmental entity.
Bayer further agrees to seek confidential treatment of any such information relating to Nektar that
it submits to any governmental entity to the extent permitted under the CIA and any Applicable
Laws.

               (g) Nektar and Bayer shall confer with each other on a regular basis to discuss and compare
their respective procedures and methodologies relating to each Party’s compliance with any
Applicable Laws or fulfillment of any other obligation contained in this Section 5.4. In the event
that the Parties have different understandings or interpretations of this Section 5.4 or of the
applicability of or standards required by any Applicable Law, then the Parties shall confer and
seek to reach common agreement on such matters.

          5.5 Regulatory Documentation. Bayer shall own and retain all right, title and interest in and
to all Regulatory Approvals and all regulatory documentation with respect to the Product, excluding
the DMF for the Device and CE Mark therefor (and equivalents of the foregoing).

          5.6 Transfer of IND. Within ninety (90) days after the Effective Date, Nektar shall transfer
the existing IND for the Product to Bayer; provided, however, that any DMFs for the Device shall
remain with Nektar as provided for in Section 5.2(a).

          5.7 Product Recall. The Manufacturing and Supply Agreement shall contain standard provisions
acceptable to both Parties regarding (a) a Regulatory Authority’s issuance or request of a recall
or similar action in connection with the Product and (b) either Party’s determination that an
event, incident or circumstance has occurred which may result in the need for a recall or market
withdrawal.

          5.8 Conformité Europeen Mark. Subject to Applicable Law, Nektar shall apply for, maintain and
be responsible for all obligations associated with the Conformité Europeen Mark for the use of the
Device with the Product.

          5.9 Cooperation. Nektar shall reasonably cooperate with Bayer in providing data and other
information generated in connection with Clinical Trials conducted by or on behalf of Nektar for
the Product prior to or after the Effective Date.

     6. Diligence

          6.1 Bayer shall use Commercially Reasonable Efforts to Develop and Commercialize the Product
in the Territory in accordance with the terms of this Agreement. Nektar shall use Commercially
Reasonable Efforts to perform its obligations set forth in the Development Plan and
Commercialization Plan or as otherwise set forth in this Agreement.

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     7. Commercialization

          7.1 Commercialization Plan and Commercialization Budget in the Shared Territory.

               (a) The GBT shall submit the first draft Commercialization Plan and first draft
Commercialization Budget to the JSC for review and approval by a date to be established by the JSC.
It is understood that such drafts may contain open issues and identify areas wherein more
information is needed to complete the drafts and to prepare a more complete Commercialization Plan
and Commercialization Budget. Within a time frame necessary to meet the Parties’ respective
internal budget submission deadlines, the GBT, after taking into consideration the comments of the
JSC, will prepare a more complete Commercialization Plan and Commercialization Budget for
submission to the JSC for its review and approval.

               (b) By or before September 30, 2007, the GBT shall develop, and the JSC shall review and
approve, in accordance with Section 3.2(b) a three (3) year commercialization plan (the
“Commercialization Plan”) for the Product for the Shared Territory, which shall include but not be
limited to (i) details regarding demographics, market dynamics, and market strategies in the Shared
Territory for the Product and patient population, estimated launch dates in the Shared Territory,
and sales and expense forecasts in the Shared Territory, and (ii) a marketing plan (including
without limitation pricing strategies pertaining to discounts and samples) for the Shared
Territory, health economics studies to be performed or other payor related and studies required to
determine or evaluate the impact of health economic studies, and other payor related studies on
potential prices for the Product. By or before September 30, 2007, the GBT shall develop and
submit to the JFC for review and endorsement, and the JSC shall review and approve, in accordance
with Section 3.2(b), a three (3) year commercialization budget (“Commercialization Budget”) for
Commercialization of the Product, including without limitation the Third Parties to be utilized in
such activities and the arrangements with them that have been or are proposed to be agreed upon.
Each Commercialization Budget for the Shared Territory shall include without limitation a budget of
the expenses expected to be incurred in connection with performing the Commercialization Plan,
including without limitation Pre-Launch Costs and Allowable Expenses in the Shared Territory. The
Commercialization Plan and the Commercialization Budget shall be updated at least once (1) per year
and shall cover the following three (3) year period.

               (c) Any significant proposed change in any Commercialization Plan during the course of the
year will be communicated promptly to the JSC for its approval, and any significant proposed change
in any Commercialization Budget during the course of the year will be communicated promptly to the
JFC for its endorsement. In addition, the GBT shall provide an update on each Commercialization
Plan and Commercialization Budget to the JSC and JFC, respectively, in a manner consistent (with
respect to timing and content) with such updates as are reported internally by Bayer on its
existing products at such time.

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               (d) Budgetary Disputes. For Commercialization activities in the Shared Territory for which a
Party is designated “Lead” in Exhibit 3.2, such Party may determine that costs for such activities
under the Commercialization Plan may be incurred that exceed the amount specified in the
Commercialization Budget for such activities (excluding the [***]) by up to [***]. In such case,
such excess costs will be included in Allowable Expenses. For Commercialization activities in the
Shared Territory for which a Party is designated “Lead” in Exhibit 3.2, if such Party desires to
propose that costs for such activities under the Commercialization Plan should be incurred that
exceed the amount specified in the Commercialization Budget for such activities (excluding the
[***]) by more than [***], such excess costs will not be included in Allowable Expenses, but the
Parties shall discuss the basis for such proposal and whether the economic terms between the
Parties should be restructured to reflect the potential investment of such additional funds.

          7.2 Launch Plan and Launch Budget for the Shared Territory.

               (a) Each Commercialization Plan and Commercialization Budget shall be updated by the GBT, in
advance of the Commercial Launch of the Product in the Shared Territory, to include without
limitation a launch plan (the “Launch Plan”) and launch budget (the “Launch Budget”) for launch and
the three (3) year period following the Commercial Launch date. Each such Launch Plan and Launch
Budget shall be developed by the GBT, submitted to the JFC for review and endorsement, and
presented to the JSC for review and approval.

               (b) The GPT shall estimate for each country a realistic date for Regulatory Approval of the
Product by the relevant Regulatory Authority, and the GBT will use this estimated date to submit
its Launch Plan at least six (6) months prior to the estimated Regulatory Approval date to the JSC.
By September 30 of each calendar year thereafter, if not yet executed, each Launch Plan and Launch
Budget for the Product shall be updated by the GBT, submitted to the JFC for review and
endorsement, and presented to the JSC for review and approval.

               (c) Each Launch Plan shall include without limitation (i) updated market and sales forecasts
in units and estimated revenues of the Product for the three (3) year period following Commercial
Launch of the Product in the Shared Territory, (ii) estimated resource requirements for the Product
in the Shared Territory, and (iii) such other matters deemed appropriate by the GBT.

               (d) Each Launch Budget shall include without limitation a breakdown of individual Allowable
Expense items expected to be incurred in connection with performing the applicable Launch Plan,
detailed sufficiently to meet the requirements of the Parties’ respective management and auditors
for reporting and controlling, and shall include without limitation all related Pre-Launch Costs.

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          7.3 [***]. Nektar shall provide [***] (“[***]”) to support the use of the Product in
hospitals and other centers of care in the Shared Territory, with approximately [***] Bayer sales
representatives, or the ratio set forth in the Commercialization Plan. Bayer shall be responsible
for performing all other marketing, sales, and promotion activities in the Shared Territory,
including without limitation providing a promotional sales force. The Parties will mutually agree
upon the size and scope of responsibilities of Nektar’s [***]. The activities of Bayer’s
promotional sales force and Nektar’s and Bayer’s [***] shall be conducted in accordance with
Bayer’s policies and the Launch Plan and the Commercialization Plan. The expenses of Nektar’s
[***] shall be included in Allowable Expenses.

          7.4 [***]. Bayer and Nektar shall each provide [***] (“[***]”), who will be responsible for
medical education and supporting physicians and scientists for the Product in the Shared Territory,
all in accordance with the Commercialization Plan. The expenses of Bayer’s and Nektar’s [***]
shall be included in Allowable Expenses.

          7.5 Sales Representative Compliance. Each of Bayer and Nektar agrees to provide regular
healthcare compliance training to its employees involved in the sales, marketing, promotion of, or
price reporting for, the Product as appropriate and necessary that meets the training requirements
and standards established by the GBT, and that will, at a minimum, cover the content and frequency
of the training required by the CIA, Applicable Laws and all industry standards (including without
limitation PhRMA Code and OIG guidance). Each of Bayer and Nektar agrees that any employees
involved in the sales, marketing, promotion of, or price reporting for, the Product shall not have
any legal or regulatory disqualifications, bars or sanctions in contravention of the CIA or any
other requirement of Applicable Laws.

          7.6 Commitment in the Shared Territory. Bayer sales representatives in the Shared Territory
will spend at least [***] of their overall working time promoting the Product in the Shared
Territory (for a total effort by Bayer of at least [***] full-time equivalents (“FTEs”) per year)
over each of the first [***] years after Commercial Launch in the Shared Territory. Nektar’s [***]
in the Shared Territory will spend at least [***] of their overall working time promoting the
Product in the Shared Territory (for a total effort by Nektar of at least [***] FTEs per year) over
each of the first [***] years after Commercial Launch in the Shared Territory. For clarity, any
portion of their overall working time that the foregoing FTEs spend on promotion of products other
than the Product shall not be included in Allowable Expenses. The JFC shall designate an
appropriate methodology for effecting an allocation of promotional efforts made by any of the
foregoing FTEs between the Product and other products.

          7.7 Packaging; Bayer and Nektar Marks. Bayer shall be responsible for all packaging
(non-commercial and commercial) and labeling of the Product. To the extent allowed by Applicable
Law and consistent with Bayer’s internal Trademark policy as to size, location and prominence, all
Product labeling and packaging, including without limitation Device packaging and package inserts
and any promotional materials associated with the Product shall carry, in a conspicuous location,
the Trademark of Nektar, subject to Bayer’s reasonable

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approval of the size, position, and location thereof on the Product or its components;
provided such Trademark of Nektar shall be displayed in equal size and prominence as Bayer’s
Trademarks. Such Trademark shall be in addition to the Trademarks of Bayer. Further, such
labeling and packaging and any promotional materials associated with the Product or the Device
shall carry, in a conspicuous location, a Patent notice in accordance with and when required by the
Applicable Laws of the country in which (a) the Product is sold, and (b) a claim in a Patent
included in the Nektar Patent Rights or a Patent Controlled by Bayer covering the Product exists
(including without limitation, in each case, Joint Patent Rights). Nektar and Bayer authorize the
use of their respective Trademarks pursuant to this Section 7.7.

          7.8 Promotion in [***].

               (a) If Nektar develops reasonable promotional and selling capabilities within [***] within
[***] years following Commercial Launch in [***], then Nektar shall have the first right to discuss
with Bayer the terms under which Nektar would provide [***] or other promotional and sales support
for the Product in [***].

               (b) Prior to entering into any agreement with a Third Party relating to promotion or sale of
the Product in [***], Bayer shall first notify Nektar in writing, and Nektar shall have the
exclusive right (if it has reasonable promotional and selling capabilities), for a period of [***]
days, to negotiate in good faith the terms of an agreement whereunder Nektar would obtain the right
to provide [***] and/or other promotional sales and support for the Product in [***]. After such
period, if the Parties do not execute a definitive agreement governing such promotion or sales
rights, Bayer shall be free to negotiate with Third Parties the terms under which such Third
Parties would obtain such rights in [***], and Bayer may enter into a binding agreement with any
such Third Party regarding promotion or sale of the Product in [***]; provided that the material
terms of any such agreement, taken as a whole, are more favorable to Bayer than the terms last
proposed by Nektar.

     8. Payment Obligations

          8.1 Research and Development Funding. The Parties shall perform Development activities to
develop and support Regulatory Approval of the Product pursuant to the Development Plan and
Development Budget. Subject to the oversight of the GPT and endorsement by the JFC and compliance
with the Development Plan:

               (a) Bayer shall be solely responsible for, [***], all costs and expenses incurred in
connection with the clinical Development of the Product (other than the [***] and Phase II Clinical
Trials that are ongoing as of the Effective Date), the preparation and submission of regulatory
filings for the Product, on a worldwide basis, further CMC development of Formulated Amikacin and
the final packaging of the Product, obtaining and maintaining all Regulatory Approvals for the
Product in the Shared Territory and in the Royalty Territory, and generally for the
Commercialization of the Product. If Bayer does not take over clinical supply

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manufacturing of the Product, it will reimburse Nektar for costs of the Product formulation
development activities as set forth in Exhibit 4.2(a)(iv).

               (b) Nektar shall be solely responsible for, [***], all costs and expenses incurred in
connection with all further Development of the Device conducted through completion of Phase III
Clinical Trials.

               (c) Each Party shall provide reasonable assistance and technical expertise as necessary to
transfer appropriate technology to support Development of the Product under the Agreement. Such
assistance may include the grant of appropriate rights of access and reference to regulatory
filings to enable the Parties to assume responsibility for Development of the Product, and
participation in meetings with regulatory agencies with respect to the Product. The costs and
expenses of all such assistance and transfer of technical expertise by Nektar to Bayer shall be
borne solely by Bayer.

               (d) [***] Costs that are included in the Commercialization Plan and Commercialization Budget
shall be included in Allowable Expenses; provided, however, that, if the portion of any [***] Costs
for which Nektar is responsible according to its share of Product Profit and Loss pursuant to
Section 8.2(b) that are included in the Commercialization Plan and Commercialization Budget exceeds
[***], any additional [***] Costs shall not be included in Allowable Expenses and shall be borne
solely by Bayer. Bayer shall solely bear any [***] Costs in the Royalty Territory, and any [***]
Costs in the Shared Territory shall be included in Allowable Expenses.

          8.2 Shared Territory Pre-Launch Costs; Profit-Sharing.

               (a) Pre-Launch Costs. The Parties shall share all Pre-Launch Costs in the Shared Territory
pursuant to a methodology and time line set forth in the Commercialization Plan and
Commercialization Budget. Such methodology and time line will be established within ninety (90)
days after the Effective Date. The ratio of such sharing shall be as follows: Bayer shall bear
[***] of such costs, and Nektar shall bear [***] of such costs.

               (b) Product Profit and Loss.

                    (i) Subject to Section 8.2(b)(ii) and Section 8.2(b)(iii)(x), commencing upon Regulatory
Approval of the Product in the Shared Territory, the Parties shall share all Product Profit and
Loss on sales of the Product in the Shared Territory for as long as the Product is being sold in
the Shared Territory as follows: Bayer shall receive or bear, as applicable, fifty-two percent
(52%) of Product Profit and Loss, and Nektar shall receive or bear, as applicable, forty-eight
percent (48%) of Product Profit and Loss. Exhibit 8.2(b)(i) contains an example of the Product
Profit and Loss calculation methodology applicable to Net Sales of the Product under this Section
8.2(b)(i).

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                    (ii) Nektar may elect to opt out of sharing Product Profit and Loss upon written notice to
Bayer no later than [***] months prior to the anticipated first Commercial Launch in the Shared
Territory, in which case Nektar shall thereafter have no responsibility to bear any Pre-Launch
Costs or Allowable Expenses, and shall not be entitled to share Product Profit and Loss. Bayer
shall thereafter treat the Shared Territory as the Royalty Territory for purposes of the payments
to be made under Section 8.4(a), (b), (c), (e) and (f) and Sections 8.5-8.10 (but not for purposes
of Section 8.4(d)), provided that the Net Sales in the Shared Territory shall not be aggregated
with Net Sales in the Royalty Territory for purposes of payments to be made under Section 8.4(a),
and further provided that the royalty rate applicable to the Shared Territory under Section 8.4(a)
shall be fixed at thirty percent (30%) of annual Net Sales in the Shared Territory (subject to any
applicable [***] under Sections 8.2(b)(iii)(y), 8.2(c)(ii) or 8.4(b)). The royalties due under
this Section 8.2(b)(ii) shall continue from the date of Commercial Launch in the Shared Territory
until the later of: (A) ten (10) years thereafter; or (B) the expiration date (or the effective
date of any lapse, abandonment or dedication to the public use) of the last Valid Claim covering
the Product, or covering the importation, Manufacture, use, offer for sale or sale of the Product,
in the Shared Territory. If Nektar opts out of sharing Product Profit and Loss pursuant to this
Section 8.2(b)(ii), (1) Nektar shall thereafter be solely responsible for the payment of all
amounts [***], and (2) all of the Parties’ payment obligations, other than those relating to
Product Profit and Loss and Allowable Expenses, as set forth in this Agreement will continue to
apply. For clarity, milestone payments payable by Bayer to Nektar pursuant to Section 8.4(d) shall
not accrue based on sales of the Product in the Shared Territory.

                    (iii) In the event that:

                         A. [***]; and

                         B. [***];

then thereafter for so long as there is [***]: (x) the Parties shall not share Product Profit and
Loss in accordance with the percentages set forth in Section 8.2(b)(i), but instead shall share all
Product Profit and Loss in the Shared Territory as follows: Bayer shall receive [***] of Net Sales
and Net Sublicense Revenues and bear [***] of Allowable Expenses, and Nektar shall receive [***] of
Net Sales and Net Sublicense Revenues and bear [***] of Allowable Expenses, or (y) in the event
that Nektar opts out of sharing Product Profit and Loss under Section 8.2(b)(i), then after such
time as Nektar has opted out of sharing Product Profit and Loss pursuant to Section 8.2(b)(ii), the
royalty rate on royalties due under Section 8.2(b)(ii) shall be [***]. Notwithstanding the
foregoing, [***], then this Section 8.2(b)(iii) shall apply again. Exhibit 8.2(b)(iii) contains an
example of the Product Profit and Loss calculation methodology under Section 8.2(b)(iii)(x).

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               (c) [***] Expenses.

                    (i) The expenses Nektar shall be entitled to include in Allowable Expenses in the calculation
of Product Profit and Loss for payments [***] with respect to the Shared Territory shall not exceed
[***] of Net Sales of the Product in the Shared Territory for [***] and shall not exceed [***] of
Net Sales of the Product in the Shared Territory for [***]. Other than with respect to the
foregoing, as between the Parties, Nektar shall be solely responsible for the payment of all other
amounts [***] with respect to the Shared Territory, including, without limitation, payments
resulting from “[***], and such amounts shall not be included in Allowable Expenses.

                    (ii) [***].

               (d) Method and Timing of Payments. Within [***] days after the end of each of the [***]
calendar quarters, and [***] days after the end of the [***] calendar quarter, of each calendar
year following Commercial Launch in the Shared Territory: (i) Bayer shall report to Nektar and the
JSC as outlined in Exhibit 1.8 Bayer’s gross revenues and individual Allowable Expense items (each
with appropriate supporting information) necessary for the computation of Product Profit and Loss
for such quarter, and (ii) Nektar shall report to Bayer and the JSC as outlined in Exhibit 1.8
Nektar’s individual Allowable Expense items (with appropriate supporting information) necessary for
the computation of Product Profit and Loss for such quarter. The reports and payments due pursuant
to this Section 8.2(d) for each calendar quarter shall include any reconciliations and adjustments
with respect to previous quarters necessary to effect the sharing of Product Profit and Loss set
forth in Section 8.2(b). In the event that the Allowable Expenses are greater than the sum of Net
Sales and Net Sublicense Revenues for a particular quarter, the difference shall be deemed a loss,
which shall be allocated to each Party in accordance with Section 8.2(b)(i) or 8.2(b)(iii)(x).
Payments (including any reconciling payments for previous quarters) shall be made for each calendar
quarter within [***] days after the reports are due and received from the Parties by Bayer or
Nektar as applicable to effect the Parties’ sharing of Product Profit and Loss as set forth in this
Section 8.2.

          8.3 Milestone Payments. Bayer shall make the following non-refundable, non-creditable
Milestone Payments (the “Milestone Payments”) to Nektar, with respect to the Product, within [***]
days after achievement of the relevant milestone for the Product. The milestones in this Section
8.3 are cumulative, such that under no circumstances is any single Milestone Payment to be deemed
in lieu of, or to be substituted for, another Milestone Payment. For clarity, each milestone in
this Section 8.3 is payable by Bayer to Nektar only once with respect to the achievement of any
milestone under this Agreement.

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	Milestone Event	 	Payment
	 	 	(millions of Dollars)
	(i) Effective Date (reimbursement by Bayer [***])

	 	$50*
	(ii) [***]

	 	$10**
	(iii) [***]

	 	$[***]
	(iv) [***]

	 	$[***]
	(v) [***]

	 	$[***]
	(vi) [***]

	 	$[***]
	(vii) [***]

	 	$[***]
	(viii) [***]

	 	$[***]

          

			
	*	 	$10 million of this payment shall be repaid to Bayer if Bayer terminates this Agreement within
thirty (30) days following delivery by Nektar to Bayer of the final report for the [***].
	 
	**	 	This milestone payment shall be used by Nektar to reimburse Bayer’s Development Costs of
conducting any Phase III Clinical Trial in the Territory. Bayer shall invoice Nektar quarterly for
such Development Costs as such costs are incurred pursuant to the Development Budget commencing
with the calendar quarter immediately following the calendar quarter in which the first Phase III
Clinical Trial Commences. Bayer shall provide to Nektar with such invoice documentation reasonably
acceptable to Nektar evidencing such Development Costs, and Nektar shall have the right to verify
any such Development Costs. Nektar shall pay such invoiced amounts within [***] days after its
receipt of an invoice. If Bayer terminates this Agreement before such milestone payment is fully
applied to reimburse such costs, Nektar shall have the right to retain any remaining portion of
such milestone payment not applied to reimburse such costs as of the effective date of such
termination.

          8.4 Royalties in the Royalty Territory.

               (a) In addition to any amounts due to Nektar under Sections 8.1, 8.2 and 8.3, and subject to
the other provisions of this Section 8.4 and the terms and conditions of this Agreement, in
consideration for the grant of the license under the Nektar Patent Rights and Nektar Know-How to
Bayer under Section 2.1(a), Bayer shall pay Nektar non-refundable and non-creditable incremental
royalties in the Royalty Territory based on the aggregate annual Net Sales of all Product sold in
all countries in the Royalty Territory in a calendar quarter to Third Parties by or on behalf of
Bayer, its Affiliates or Sublicensees, in which, and for so long as, the Product or the
manufacture, use, sale, offer for sale, or importation of the Product would infringe a Valid Claim
or constitute a misappropriation of the Nektar Know-How in such country in the absence of such
license, according to the following royalty rates (for the purposes hereof,

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17 C.F.R. Sections 200.80(b)(4) and 240.24b-2

“annual” means any complete calendar year period beginning on January 1 and ending on December
31):

	 	 	 
	Annual Royalty Rate	 	Annual Net Sales in the Royalty Territory
	 	 	(millions of Dollars)
	14% of the amount between

	 	$[***]
	[***]% of the amount between

	 	>$[***]
	[***]% of the amount between

	 	>$[***]
	[***]% of the amount between

	 	>$[***]
	30% of the amount

	 	>$[***]

Exhibit 8.4(a) contains an example of the royalty calculation methodology applicable to Net Sales
of the Product under Section 8.4(a).

               (b) In the event that there is no Valid Claim covering the Product, or covering the
importation, Manufacture, use, offer for sale or sale of the Product in a given country in the
Royalty Territory, then the applicable royalty rates under Section 8.4(a), subject to any [***]
under Sections 8.4(e) and/or 8.4(f), in such country shall be [***].

Exhibit 8.4(a) contains an example of the royalty calculation methodology applicable to Net Sales
of the Product under Section 8.4(b).

               (c) The royalties due under Sections 8.4(a) and 8.4(b) shall continue on a country-by-country
basis, from the date of Commercial Launch of the Product in such country until the later of: (i)
ten (10) years thereafter; or (ii) the expiration date (or the effective date of any lapse,
abandonment or dedication to the public use) of the last Valid Claim covering the Product, or
covering the importation, Manufacture, use, offer for sale or sale of the Product, in such country.
The royalty rates at which Bayer is obligated to pay royalties under this Section 8.4(c) are
determined by the percentages set forth in Sections 8.4(a) and 8.4(b), such that at any point in
time during which Bayer has a royalty payment obligation under Sections 8.4(a) or 8.4(b), the
royalty rate shall be determined on a country-by-country basis by whether or not there is Valid
Claim covering the Product, or the importation, Manufacture, use, offer for sale or sale of the
Product, in such country.

               (d) Additional Royalty Payments. The following one-time additional royalty payments will also
be paid by Bayer to Nektar within [***] days after the delivery of the report under Section 8.5
demonstrating the first occurrence of each of the following events:

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	Event	 	Payment
	 	 	(millions of Dollars)
	First time that Net Sales in the Royalty Territory in a calendar year [***]

	 	$[***]
	First time that Net Sales in the Royalty Territory in a calendar year [***]

	 	$[***]
	First time that Net Sales in the Royalty Territory in a calendar year [***]

	 	$[***]
	First time that Net Sales in the Royalty Territory in a calendar year [***]

	 	$[***]
	First time that Net Sales in the Royalty Territory in a calendar year [***]

	 	$[***]

All of the additional royalty payments made under this Section 8.4(d) are non-refundable and
non-creditable, and each such payment is payable only once.

               (e) Nektar shall be solely responsible for the payment of all amounts [***] with respect to
the Royalty Territory. [***].

               (f) On a country-by-country basis, in the event that:

                    (i) [***]; and

                    (ii) [***];

then thereafter for so long as there is [***], the royalty rate in such country as calculated in
accordance with Section 8.4(a) shall be [***] for annual Net Sales in the Royalty Territory less
than or equal to [***], and (2) [***] for annual Nets Sales in the Royalty Territory greater than
[***]. Notwithstanding the foregoing, if at any point [***], then this Section 8.4(f) shall apply
again.

          8.5 Payments. Payments due under Section 8.4(a) shall be paid not later than [***] calendar
days following the end of each calendar quarter with respect to Net Sales in such quarter. Each
payment under this Section 8.5 shall be accompanied by a written report showing, on a
country-by-country basis, (a) the calendar quarter for which such payment applies, (b) the amount
billed to Third Parties for the Product during such quarter, (c) the total deductions from

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the amount billed to arrive at Net Sales, (d) the quantities of all Product sold, and (e) the
amount of royalties due. Any late payments under this Agreement shall bear interest at the prime
rate of interest as reported on the first business day following the date payment is due in the
“Money Rates” section of The Wall Street Journal (Eastern United States Edition).

          8.6 Currency of Payment. All payments to be made under this Agreement shall be made in
Dollars. Net Sales made in foreign currencies shall be converted into Dollars using the average of
the month end daily currency exchange rates set forth in The Wall Street Journal (Eastern United
States Edition) for each of the three calendar months included in the calendar quarter in which
such Net Sales were made. All such converted Net Sales and cost items shall be consolidated with
U.S. Net Sales for each calendar quarter and the applicable payments determined therefrom.

          8.7 Single Royalty. Royalties payable under Section 8.4(a) or (d) 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. If royalties are payable for the Product under
Section 8.4(a), no royalties will be payable for the Product under Section 8.4(b). For clarity,
all royalties due under the royalty-bearing licenses in Sections 2.1(a)(i), 2.1(a)(iii) and 18.7(b)
are accounted for under the terms of this Agreement and no additional royalties are payable with
respect to Sections 2.1(a)(i), 2.1(a)(iii) and 18.7(b).

          8.8 Sublicensing. In the event Bayer grants a sublicense under Section 2.1 to a Sublicensee
to make, use, import, offer to sell or sell the Product, such sublicenses shall require the
Sublicensee to account for and report its Net Sales of the Product on the same basis as if such
sales were Net Sales of the Product by Bayer, and Bayer shall pay royalties on such sales as if the
Net Sales of the Sublicensees were Net Sales of Bayer.

          8.9 Accounting.

               (a) For the purposes of determining all costs and expenses hereunder, any cost or expense
allocated by either Party to a particular category for the Product shall not also be allocated to
another category for such Product, and any cost or expense allocated to the Product in a particular
country shall not be allocated or allocable to another product of such Party in such country or the
same Product in a different country.

               (b) Each Party agrees to determine Net Sales, Allowable Expenses, Patent costs, Trademark
Expenses and Pre-Launch Costs with respect to the Product using its standard accounting procedures,
consistent with GAAP or IFRS or IAS to the extent practical as if the Product was a solely owned
product of each Party, except as specifically provided in this Agreement. In the case of amounts
to be determined by Third Parties (for example, Net Sales by Sublicensees), such amounts shall be
determined in accordance with GAAP or IFRS or IAS in effect in the country in which such Third
Party is engaged. The Parties also recognize that such procedures may change from time to time and
that any such changes may affect the definition of

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Net Sales, Allowable Expenses, or Pre-Launch Costs. The Parties agree that, where such
changes are economically material to either Party, adjustments shall be made to compensate the
affected Party in order to preserve the same economics as are reflected under this Agreement under
such Party’s accounting procedures in effect prior to such change (for example, Development or
Commercialization). Where the change is or would be material to one Party, the other Party shall
provide an explanation of the proposed change and an accounting of the effect of the change on the
relevant revenue, cost, or expense category.

               (c) In the event of the payment or receipt of non-cash consideration in connection with the
performance of activities under this Agreement, the Party engaging in such non-cash transaction
shall advise the JFC of such transaction, including without limitation such Party’s assessment of
the fair market value of such non-cash consideration and the basis therefor. Such transaction
shall be accounted for on a cash equivalent basis, as mutually agreed by the Parties in good faith.

          8.10 Withholding Tax. Any Party required to make a payment to any Party under this Agreement
shall be entitled to deduct and withhold from the amount otherwise payable such amounts to the
extent it is required to deduct and withhold with respect to such payment under any provision of
federal, state, local or foreign tax law. Such withheld amounts shall be treated for all purposes
of this Agreement as having been paid to the Party on whose behalf it was withheld. No deduction
shall be made to the extent the paying Party is timely furnished with necessary documents
certifying that the payment is exempt from tax or subject to a reduced tax rate.

     9. Manufacture and Supply of Amikacin and the Device

          9.1 Manufacturing and Supply Agreement.

               (a) Negotiation. The Parties shall, within sixty (60) days after written request by the JSC,
convene a meeting to negotiate in good faith the terms and conditions of a manufacturing and supply
agreement (“Manufacturing and Supply Agreement”) which shall establish all material economic,
quality, safety, business and technical terms under which Nektar shall supply to Bayer all of
Bayer’s forecasted requirements of the Device. Within ninety (90) days after the commencement of
those negotiations, the Parties shall exercise Commercially Reasonable Efforts to execute a
mutually satisfactory Manufacturing and Supply Agreement.

               (b) Commercial Manufacturing and Supply. In connection with any Manufacturing and Supply
Agreement entered into pursuant to this Agreement, Bayer shall provide Formulated Amikacin for
commercial supply of the Product and shall be responsible for final packaging of Formulated
Amikacin with the Device. Bayer’s cost for the Device, Formulated Amikacin, and final Product
packaging for commercial supply for the Shared Territory shall be included in Allowable Expenses.
Nektar shall supply the Device for use in the Manufacture of commercial supplies of the Product to
Bayer, at a price for the Shared Territory

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equal to Nektar’s Fully Burdened Manufacturing Cost therefor, and at a price for the Royalty
Territory equal to one hundred thirty (130%) of Nektar’s Fully Burdened Manufacturing Cost
therefor. In the event that the amount Bayer pays to Nektar for the Device in the Royalty
Territory [***] in accordance with the dollar amounts and time schedule to be set forth in the
Manufacturing and Supply Agreement, such agreement would specify that Bayer would have the right to
[***] for commercial supply of the Device to provide reasonable accommodation for the [***],
provided that in no event would the purchase price for the Device be less than [***] of Nektar’s
Fully Burdened Manufacturing Cost therefor. All amounts paid by Bayer to Nektar for commercial
supply of the Device for the Shared Territory, and Bayer’s Cost of Goods Sold (as defined in
Exhibit 1.8) for manufacturing Formulated Amikacin, and performing final packaging and labeling of
the Product, for commercial supply in the Shared Territory, will be included in Allowable Expenses.

          9.2 Clinical Manufacturing and Supply. Bayer shall pay Nektar, on an ongoing basis, for the
supply of the Device and Formulated Amikacin for use in Clinical Trials of the Product at a price
equal to Nektar’s Fully Burdened Manufacturing Cost thereof. Payments due under this Section 9.2
shall be paid not later than [***] days after the date of invoice by Nektar therefor. Within
ninety (90) days after the Effective Date, the Parties will enter into an agreement governing the
detailed terms of Nektar’s supply obligation under this Section 9.2. For clarity, these payments
shall not be included in Allowable Expenses for purposes of the Product Profit and Loss
calculations.

          9.3 Manufacturing Expenditures. Bayer shall be responsible for all capital costs incurred in
connection with the Manufacture of Formulated Amikacin and Product (excluding the Device),
including without limitation building out manufacturing capacity for Formulated Amikacin and
Product and final packaging of the Product, and the depreciation on such capital expenditures will
be included in Allowable Expenses to the extent allocable to the Shared Territory, in the manner
established by the JFC. Nektar shall be responsible for all capital costs incurred in connection
with the Manufacture of the Device, including without limitation building out manufacturing
capacity for the Device, and the depreciation on such capital expenditures will similarly be
included in Allowable Expenses to the extent allocable to the Shared Territory, in the manner
established by the JFC.

     10. Record Keeping, Record Retention and Audits

          10.1 Record Keeping. Each Party shall record, to the extent practical, all research and
development Information relating to the Project in standard laboratory notebooks, which shall be
signed, dated and witnessed, or if kept electronically, suitably validated. To the extent
practical, the notebooks of each Party for the Project shall be kept separately from notebooks
documenting other research and development of such Party. Each Party shall require its employees,
consultants and contractors (and in the case of Bayer, shall cause its Affiliates and Sublicensees)
to disclose any Inventions relating to the Project in writing promptly after conception.

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          10.2 Record Retention. Nektar shall keep complete and accurate records pertaining to the
research, Development and Manufacture of the Device and Patent costs and Trademark Expenses in
sufficient detail to permit Bayer to verify the costs related to the research, Development and
Manufacturing efforts of Nektar under this Agreement for which Bayer is responsible for paying,
reimbursing or sharing. Bayer shall keep complete and accurate records pertaining to the research,
Development, manufacture, regulatory activities, and Commercialization related to the Product and
Patent costs and Trademark Expenses, which documents would enable Nektar to confirm Bayer’s costs
of performing its obligations under this Agreement and to confirm the accuracy of calculations of
all payments made under this Agreement The records to be maintained by each Party under this
Section 10.2 shall be maintained for a minimum of [***] years following the year in which the
corresponding efforts or payments, as the case may be, were made under this Agreement or longer if
required by Applicable Law.

          10.3 Audit Request. Each Party shall, at its expense (except as provided below), have the
right to audit, not more than once during each calendar year and during regular business hours, the
records maintained by the other Party under Section 10.2, to determine with respect to any calendar
year, the accuracy of any report or payment made under this Agreement in the [***] preceding years.
If a Party desires to audit such records, it shall engage an independent, certified public
accountant reasonably acceptable to the other Party, to examine such records under conditions of
confidentiality. Such accountant shall be instructed to provide to the auditing Party a report
verifying any report made or payment submitted by the audited Party during such period, but shall
not disclose to the auditing Party any confidential Information of the audited Party not necessary
therefor. The expense of such audit shall be borne by the auditing Party; provided, however, that,
if an error of more than ten percent (10%) is discovered, then such expenses shall be paid by the
audited Party. If such accountant concludes that additional payment amounts were owed to a Party
during any period, the debtor Party shall pay such payment amount (including without limitation
interest thereon from the date such amounts were payable) within thirty (30) days after the date
the creditor Party delivers to the debtor Party such accountant’s written report so concluding,
unless the debtor Party notifies the creditor Party of any dispute regarding the audit and
commences proceedings under Section 20.10 within thirty (30) days after delivery of the
accountant’s report (in which case the payment shall be delayed until conclusion of the
proceeding). Such auditors shall not be paid on a contingency basis. Any Information received by
an auditing Party pursuant to this Section 10.3 shall be deemed to be Confidential Information of
the audited Party.

          10.4 Survival. This Article 10 shall survive any termination or expiration of this Agreement
for a period of [***] years following the final payment made by Bayer or Nektar hereunder, or
longer if required by Applicable Law.

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     11. Inventions, Know-How and Patents 

          11.1 Existing Intellectual Property. Other than as expressly provided in this Agreement,
neither Party grants any right, title, or interest in any Patent rights, Information, or other
intellectual property right Controlled by such Party to the other Party. Within ninety (90) days
after the Effective Date, Nektar shall file a continuation Patent Application consistent with
applicable patent laws and procedure based upon [***], such continuation to contain only claims
encompassing [***]. Within [***] days after such continuation Patent Application is filed, Nektar
shall transfer ownership and control of such application to Bayer in a manner agreed to by the
Parties, including to effectuate Bayer’s ability to control prosecution of all inventions disclosed
therein and generically or specifically covering [***].

          11.2 Ownership of Inventions.

               (a) Ownership of inventions arising during and in the course of the Parties’ performance under
the Agreement, and related intellectual property rights (“Inventions") shall be determined in
accordance with U.S. rules of inventorship, except as otherwise set forth in this Section 11.2(a),
below. For clarity, except as set forth in this Section 11.2(a), below, each Party shall have an
undivided interest in and to any Inventions made by employees or independent contractors of both
Parties (“Joint Inventions"), without a duty of accounting to the other Party and without an
obligation to obtain consent of the other Party to grant licenses thereunder in countries in which
such duty or obligation would otherwise apply. Each Party shall promptly disclose, and shall cause
its Sublicensees and Affiliates to disclose, to the other Party any Inventions that it or its
employees, Sublicensees, Affiliates, independent contractors or agents solely or jointly make,
conceive, reduce to practice, author, or otherwise discover. Notwithstanding the foregoing:

                    (i) Subject to Section 11.3(a)(i), Nektar shall solely own all Inventions relating to the
Device, to methods of using or manufacturing the Device, and/or to the PDDS Platform Technology,
whether made by employees, independent contractors or agents of either Party or jointly by
employees, independent contractors or agents of both Parties. Such Inventions and Patents and
Patent Applications claiming such Inventions are included in the Nektar Patent Rights and Nektar
Know-How, as applicable, and licensed to Bayer pursuant to Section 2.1.

                    (ii) Subject to Section 11.3(a)(ii), Bayer shall solely own all Inventions relating to
Formulated Amikacin or to methods of using or manufacturing the Formulated Amikacin, including
without limitation methods of treatment using Formulated Amikacin, whether made by employees,
independent contractors or agents of either Party or jointly by employees, independent contractors
or agents of both Parties. Bayer hereby grants to Nektar a non-exclusive, royalty-free, license
with the right to grant sublicenses in accordance with Section 2.3 (the portion of which license
described in subsection (B), below, shall be irrevocable and perpetual), under Bayer’s interest in
such Inventions, to make, have made, use,

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have used, sell, have sold, offer for sale, import, have imported, exported and have exported
(A) the Product in the Shared Territory and (B) other products that are based on or incorporate a
combination of such Inventions and the PDDS Platform Technology in the Territory.

               (b) Assignment and Perfection of Interests. Without additional consideration except as
otherwise provided for in this Section 11.2(b), each Party hereby assigns to the other Party such
of its right, title and interest in and to any Inventions, Patent rights claiming them, and all
other intellectual property rights therein, including without limitation enforcement rights, and
shall require its Sublicensees, Affiliates, independent contractors, employees or agents to so
assign to the other Party such of their right, title and interest in and to the foregoing, as is
necessary to effectuate the allocation of right, title and interest in and to Inventions as set
forth in Section 11.2(a). Each Party shall, and shall cause its Sublicensees, Affiliates,
independent contractors, employees and agents to, cooperate with the other Party and take all
reasonable additional actions and execute such agreements, instruments and documents as may be
reasonably required to perfect the other Party’s right, title and interest in and to Inventions,
Patent rights and other intellectual property rights as such other Party has pursuant to Section
11.2(a). Each Party shall also include without limitation provisions in its relevant agreements
with Third Parties that effect the intent of this Section 11.2(b). If any independent contractor,
employee or agent of a Party, its Sublicensees, or Affiliates makes an Invention that the Party is
obligated to assign or cause to be assigned to the other Party hereunder, then, in such case, the
assignee Party agrees to pay the assignor Party [***] per Invention.

          11.3 Patent Prosecution and Maintenance.

               (a) Each Party shall file and prosecute Patent Applications and maintain Patents in a manner
consistent with optimizing Patent protection on Inventions and other inventions Controlled by
Nektar or Aerogen that are disclosed and/or claimed in the Nektar Patent Rights. Each Party shall
cause its patent counsel to confer no less frequently than once each calendar quarter regarding the
status of all such Patent Applications and Patents for which it is responsible under this Section
11.3, and whether and in which countries foreign counterparts of such Patent Applications and
Patents shall be filed. The Parties shall set the location, date, time and type of meeting (either
in person, by teleconference, or by videoconference) so as to be mutually agreeable to the patent
counsel of each Party.

                    (i) [***] of and be responsible for filing, prosecuting and maintaining Patents and Patent
Applications claiming inventions it Controls as of the Effective Date and those it Controls that
arise outside the Parties’ performance pursuant to this Agreement, and Patents and Patent
Applications on Inventions it solely owns under the Agreement. If Nektar does not wish to file,
prosecute or maintain any such Patent Applications or Patents that relate to [***] in any country,
Nektar shall give Bayer reasonable written notice to such effect and shall grant Bayer any
necessary authority to file, prosecute and maintain such Patent Applications or maintain such a
Patent in Bayer’s own name and at Bayer’s sole expense. In such event, Nektar shall assign its
entire right, title and interest in and to such Patent Applications or Patents in that

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country to Bayer. Notwithstanding the foregoing, after the Effective Date, Nektar shall file
Patent Applications included within the Nektar Patent Rights in at least the countries and regions
listed in Exhibit 11.3(a)(i). Nektar shall give Bayer reasonable written notice of the countries
and regions in which it will file such Patent Applications in order to permit Bayer reasonable time
to file such Patent Applications in any country in which Nektar will not be filing. If Bayer
wishes to file such Patent Applications in any additional countries, Nektar shall provide Bayer
with copies of any documents necessary to conduct such filings and shall grant Bayer any necessary
authority to file, prosecute and maintain such Patent Applications in Bayer’s own name and at
Bayer’s sole expense. In such event, Nektar shall assign its entire right, title and interest in
and to such Patent Applications in that country to Bayer. [***] and be solely responsible for
prosecuting, maintaining, enforcing and defending any Patent or Patent Application assigned to
Bayer under this Section 11.3(a)(i). In the event that Bayer chooses not to prosecute, maintain,
enforce or defend any such Patents or Patent Applications, Nektar will have the option to do so
[***].

                    (ii) [***] and be responsible for filing, prosecuting and maintaining Patents and Patent
Applications on Inventions it solely owns under the Agreement. If Bayer does not wish to file,
prosecute or maintain any such Patent Applications or Patents in any country, Bayer shall give
Nektar reasonable written notice to such effect and shall grant Nektar any necessary authority to
file, prosecute and maintain such Patent Applications or maintain or defend such a Patent in
Nektar’s own name and [***]. In such event, Bayer shall assign its entire right, title and
interest in and to such Patent Applications or Patents in that country to Nektar.

                    (iii) For jointly owned Inventions, the Parties shall select a mutually acceptable Third Party
patent counsel to file, prosecute and maintain Patents and Patent Applications thereon on behalf of
both Parties (“Joint Patent Rights”). All costs and expenses for Joint Patent Rights shall be
shared by the Parties as follows: Bayer shall bear [***] of such costs and expenses and Nektar
shall bear [***] of such costs and expenses. If either Party does not wish to file, prosecute or
maintain any Joint Patent Rights in any country or pay its portion of any shared costs for Joint
Patent Rights in any country, that Party shall give the other Party reasonable written notice to
such effect and shall grant the other Party any necessary authority to file, prosecute, maintain or
defend such Joint Patent Rights in the other Party’s own name and at the other Party’s sole
expense. In such event, the Party shall assign its entire right, title and interest in and to such
Joint Patent Rights in that country to the other Party.

               (b) Each Party shall promptly disclose, and shall cause its Sublicensees and Affiliates to
disclose, to the other in writing all Inventions and intellectual property rights arising from the
joint or separate activities of the Parties or their respective agents, contractors, Affiliates and
sublicensees during and in connection with the performance of the activities conducted pursuant to
this Agreement. Each Party shall ensure that, to the extent permitted by Applicable Law, its
employees, agents, contractors, and sublicensees performing work pursuant to this Agreement are,
and shall cause its Affiliates performing work pursuant to

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this Agreement to be, under an obligation to assign to it all Inventions therein and
intellectual property rights made or arising during and in the course of and as a result of the
performance of such work or, where such obligation is not permitted in a particular country, to
exclusively license to it all such Inventions and intellectual property rights, with the right to
authorize or grant sublicenses in such country, or where neither of the foregoing obligations is
permitted in a particular country then, to non-exclusively license to it all such Inventions and
intellectual property rights, with the right to authorize or grant sublicenses in such country.

          11.4 Third Party Licenses.

               (a) If either Party reasonably determines that certain Third Party intellectual property
rights are necessary for the Development or Commercialization of the Product, where such Third
Party intellectual property rights are necessary solely due to the inclusion of [***] in the
Product, Bayer shall at its expense obtain a license to such Third Party intellectual property,
with the right to sublicense, in order to permit both Parties to conduct their obligations under
the Agreement. Subject to the foregoing, the terms and conditions involved in obtaining such
rights shall be determined at Bayer’s sole discretion. If Bayer elects not to obtain rights to
such Third Party intellectual property, or is unsuccessful in obtaining such rights, then Nektar
shall have the right (but not the obligation) to negotiate and obtain rights from such Third Party
at its sole discretion and expense. If either Party reasonably determines that certain Third Party
intellectual property rights are necessary for the Development or Commercialization of the Product,
where such Third Party intellectual property rights are necessary solely due to the inclusion of
the [***] in the Product, Nektar shall at its expense obtain a license to such Third Party
intellectual property, with the right to sublicense, in order to permit both Parties to conduct
their obligations under the Agreement. Subject to the foregoing, the terms and conditions involved
in obtaining such rights shall be determined at Nektar’s sole discretion. If Nektar elects not to
obtain rights to such Third Party intellectual property, or is unsuccessful in obtaining such
rights, then Bayer shall have the right (but not the obligation) to negotiate and obtain rights
from such Third Party at its sole discretion and expense. If either Party reasonably determines
that certain Third Party intellectual property rights are necessary for the Development or
Commercialization of the Product, where such Third Party intellectual property rights are required
for reasons not solely based on the inclusion of [***] in the Product, the Parties shall jointly
obtain the requisite rights to such Third Party intellectual property and share the costs
associated therewith as follows: Bayer shall bear [***] of such costs and Nektar shall bear [***]
of such costs. The terms and conditions involved in obtaining such rights shall be mutually agreed
upon by both Parties.

               (b) If the Parties disagree on whether rights in Third Party intellectual property are
reasonably necessary for the Development or Commercialization of the Product, the JSC will be
responsible for determining whether rights in such Third Party intellectual property should be
obtained. If the JSC determines that rights in such Third Party intellectual property are
reasonably necessary, the responsibility and costs for obtaining such rights shall be borne by the
Parties as follows: (i) Bayer shall bear all costs and expenses incurred in connection with any

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such license, under Third Party intellectual property rights that are necessary solely due to
the inclusion of [***] in the Product; (ii) Nektar shall bear all costs and expenses incurred in
connection with any such license, under Third Party intellectual property rights that are necessary
solely due to the inclusion of the [***] in the Product; and (iii) for any such licenses under
Third Party intellectual property rights that are required for reasons not solely due either to the
inclusion of [***], in the Product, the Parties shall jointly obtain the requisite license to such
Third Party intellectual property rights and share the costs associated therewith as follows:
Bayer shall bear [***] of such costs, and Nektar shall bear [***] of such costs. If the JSC
determines that rights in such Third Party intellectual property are not required, either Party may
obtain a license under such Third Party intellectual property at its sole discretion and expense.

          11.5 Infringement by Third Parties. Subject to Section 11.3(a)(ii), [***] enforcing, and
shall have the first right to enforce, Patents throughout the Territory that claim the composition
of matter of, methods of making, or methods of using [***], which right includes the right to
control and settle the litigation (subject to the last sentence of this Section 11.5). Subject to
Section 11.3(a)(i), [***] enforcing, and shall have the first right to enforce, Patents throughout
the Territory that claim the [***], which right includes the right to control and settle the
litigation (subject to the last sentence of this Section 11.5). If the Party having such first
right does not initiate an enforcement action within ninety (90) days after the Parties first learn
of such infringement, the other Party shall have the right to enforce such Patents against
infringers to the extent such infringement relates to products competitive with the Product in the
Field. All of the costs and expenses of both Parties incurred in connection with such proceedings
shall be borne by the Party bringing such action, and any recoveries shall be awarded to the
enforcing Party. For Nektar Patent Rights and Patents Controlled by Bayer and/or its Affiliates
relating to a [***] (in each case, including without limitation Joint Patent Rights), the Parties
shall jointly enforce such Patents throughout the Territory and share the costs associated with
such enforcement and any recoveries associated therewith as follows: Bayer shall bear or receive
[***] of such costs or recovery, as applicable, and Nektar shall bear or receive [***] of such
costs or recovery, as applicable. If one Party chooses not to participate in enforcement of
Patents relating to a [***], the other Party shall have the right to enforce such Patents (provided
all of the costs and expenses of both Parties incurred in connection with such enforcement shall be
borne by the enforcing Party), including without limitation the right to settle such litigation
(subject to the last sentence of this Section 11.5) at its sole expense and to keep all recoveries
associated therewith. If, in any enforcement action taken pursuant to this Section 11.5, the
enforcing Party determines that the other Party is an indispensable party to such action, the other
Party hereby consents to be joined in such action and, in such event, the other Party shall have
the right to be represented in such action using counsel of its own choice at the enforcing Party’s
expense. Notwithstanding the foregoing, each Party’s enforcement rights under this Section 11.5
shall be subject to limitations imposed in any license agreement with a Third Party existing as of
the Effective Date relating to the Patent to be enforced. The joint consent of Bayer and Nektar
(which consent shall not be unreasonably withheld or delayed) shall be required of any settlement,
consent judgment or other voluntary final disposition of a suit under this Section 11.5 that could
adversely affect the other Party’s interest.

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          11.6 Infringement Outside the Field. Nektar shall retain any and all rights to pursue an
action against, and control all proceedings relating to, an infringement by a Third Party of the
Nektar Patent Rights or Nektar Know-How that is not related to the Product and/or is exclusively
outside the Field. Bayer shall retain any and all rights to pursue an action against, and control
all proceedings relating to, an infringement by a Third Party of a Patent relating to an Invention
solely owned by Bayer under the Agreement that is not related to the Product and/or is exclusively
outside the Field.

          11.7 Further Actions. Each Party shall cooperate with the other Party to execute all
documents and take all reasonable actions to effect the intent of this Article 11.

          11.8 [***] Patents*. [***] retains certain rights to prosecute and enforce certain Patents
and Patent Applications [***].

     12. Representations and Warranties

          12.1 The Parties’ Representations and Warranties. Nektar, Aerogen and Bayer (each a
“Representing Party”) each hereby represents and warrants to each other, as of the Effective Date,
as set forth below:

               (a) To the best of such Representing Party’s knowledge, all of its employees, officers,
contractors and consultants have executed agreements requiring assignment to such Representing
Party of all inventions made during the course of and as a result of their association with such
Representing Party and obligating each such employee, officer, contractor and consultant to
maintain as confidential the Confidential Information of such Representing Party.

               (b) It has the power, authority and legal right, and is free, to enter into this Agreement
and, in so doing, will not violate any other agreement to which it is a party as of the Effective
Date. Moreover, during the term of this Agreement, it shall not enter into any agreement with any
Third Party that will conflict with the rights granted to another Representing Party under this
Agreement. This Agreement has been duly executed and delivered on behalf of such Representing
Party and constitutes a legal, valid and binding obligation of such Representing Party and is
enforceable against it in accordance with its terms, subject to the effects of bankruptcy,
insolvency or other laws of general application affecting the enforcement of creditor rights and
judicial principles affecting the availability of specific performance and general principles of
equity, whether enforceability is considered a proceeding at law or equity.

               (c) It has taken all corporate action necessary to authorize the execution and delivery of
this Agreement.

               (d) Neither it, nor any of its employees, officers, subcontractors or consultants who have
rendered or will render services relating to the Project or the Product: (i) has ever been
debarred or is subject or debarment or convicted of a crime for which an entity or

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person could be debarred under 21 U.S.C. Section 335a, or (ii) has ever been under indictment
for a crime for which a person or entity could be debarred under said Section 335a. If during the
term of this Agreement, a Representing Party has reason to believe that it or any of its employees,
officers, subcontractors or consultants rendering services relating to the Project or the Product:
(x) is or will be debarred or convicted of a crime under 21 U.S.C. Section 335a, or (y) is or will
be under indictment under said Section 335a, then such Representing Party shall immediately notify
the other Representing Parties of same in writing.

               (e) All necessary consents, approvals and authorizations of all Regulatory Authorities and
other Third Parties required to be obtained by such Representing Party in connection with the
execution and delivery of this Agreement and the performance of its obligations hereunder have been
obtained.

               (f) The execution and delivery of this Agreement and the performance of such Representing
Party’s obligations hereunder (i) do not conflict with or violate any requirement of Applicable Law
or any provision of the articles of incorporation, bylaws, limited partnership agreement or any
similar instrument of such Representing Party, as applicable, in any material way, and (ii) do not
conflict with, violate, or breach or constitute a default or require any consent under, any
Applicable Law or any contractual obligation or court or administrative order by which such
Representing Party is bound.

          12.2 Additional Representations and Warranties of Bayer. Bayer hereby represents and warrants
to Nektar, as of the Effective Date, that Bayer (a) is a corporation duly organized and subsisting
under the laws of its jurisdiction of organization, and (b) has full power and authority and the
legal right to own and operate its property and assets and to carry on its business as it is now
being conducted and as it is contemplated to be conducted by this Agreement.

          12.3 Additional Representations and Warranties of Nektar and Aerogen. Nektar and Aerogen
hereby represents and warrants to Bayer, as of the Effective Date, as set forth below:

               (a) Nektar is a corporation duly organized, validly existing and subsisting under the laws of
the State of Delaware. Aerogen is a wholly owned subsidiary of Nektar, and is a corporation duly
organized, validly existing and subsisting under the laws of the State of Delaware.

               (b) Each of Nektar and Aerogen has full power and authority and the legal right to own and
operate its property and assets and to carry on its business as it is now being conducted and as is
contemplated to be conducted by this Agreement.

               (c) Nektar has title to Patents and Patent Applications solely owned by Nektar and included
within the Nektar Patent Rights. The Nektar Patent Rights solely owned by Nektar are free and
clear of any liens, charges, encumbrances, or judgments in the Field.

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Aerogen has title to Patents and Patent Applications solely owned by Aerogen and included
within the Nektar Patent Rights. The Nektar Patent Rights solely owned by Aerogen are free and
clear of any liens, charges, encumbrances, or judgments in the Field, except to the extent [***].

               (d) Except for the license grants in Section 2.1, and except as to any rights previously
granted by [***], neither Nektar, Aerogen nor any of their Affiliates have assigned, transferred,
conveyed or otherwise encumbered in the Field, any right, title or interest in or to the Nektar
Patent Rights or the Nektar Know-How.

               (e) There are no judgments or settlements against Nektar or Aerogen or amounts owed by Nektar
or Aerogen (other than amounts owed in the ordinary course of business) with respect to the Nektar
Patent Rights or the Nektar Know-How, except with respect to the [***].

               (f) Nektar has provided Bayer with a copy of all validity, infringement or freedom-to-operate
opinions that were prepared on behalf of Nektar or Aerogen by outside counsel pertaining to the
[***].

               (g) Nektar and Aerogen, to their actual knowledge, are in compliance in all material respects
with any agreement between Nektar or Aerogen and a Third Party relating to the practice of the
Nektar Patent Rights in the Field.

               (h) All Patents and Patent Applications owned by Nektar or Aerogen as of the Effective Date
that claim a product, method, apparatus, material, manufacturing process or other technology
necessary to develop, make, use, sell, offer for sale, import or export [***] are Controlled by
Nektar or Aerogen as of the Effective Date.

               (i) Nektar and Aerogen have sufficient legal and/or beneficial title under their intellectual
property rights necessary for the purposes contemplated under this Agreement and to grant the
licenses contained in this Agreement.

               (j) Neither Nektar nor Aerogen are aware of any pending or threatened litigation nor have they
received any written communications alleging that they have violated or would violate, through the
manufacture, import and/or sale of the Product hereunder, or by conducting their obligations under
the Project as currently proposed under this Agreement, any rights including intellectual property
rights of any Third Party.

     13. Non-Solicitation of Employees

          13.1 Non-Solicitation. While the Parties are performing research, Development and
Commercialization activities in connection with the Project under this Agreement and for a period
of [***] years thereafter, neither Party shall, without the express written consent of the other
Party, recruit, solicit or induce any employee of the other Party to terminate his or her
employment with such other Party. The foregoing provision shall not,

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however, restrict either Party or its Affiliates from advertising employment opportunities in
any manner that does not directly target the other Party or its Affiliates or from hiring any
persons who respond to such generalized public advertisements.

     14. Mutual Indemnification and Insurance

          14.1 Nektar’s Right to Indemnification. Bayer shall indemnify, defend and hold harmless each
of Nektar and its Affiliates and their respective successors, assigns, directors, officers,
employees and agents, from and against any and all liabilities, damages, losses, settlements,
penalties, fines, costs and expenses, including without limitation reasonable attorneys’ fees and
litigation costs (any of the foregoing to be referred to herein as “Damages”) of whatever kind or
nature (but not including taxes) arising from any Third Party demand, investigation, claim, action
or suit in the Territory to the extent based on (i) any act, whether of omission or commission, by
Bayer (or its Affiliates, Sublicensees or any of their respective directors, officers, agents,
employees or contractors) with respect to its failure to properly discharge or perform its areas of
responsibility under this Agreement, including, without limitation, the supply of Formulated
Amikacin for Commercial purposes (including without limitation any defect or alleged defect in
Formulated Amikacin provided pursuant to this Agreement or any injury or death of any person
arising out of or related to Formulated Amikacin provided pursuant to this Agreement), packaging
and distribution of the Product for Commercial purposes, the conduct of any Clinical Trial by
Bayer, and the Exploitation of the Product, except in each case for those types of Damages for
which Nektar has an obligation to indemnify Bayer and its Affiliates pursuant to Section 14.2; (ii)
the gross negligence or willful or intentional misconduct of Bayer, its Affiliates or any of its
Sublicensees or their respective directors, officers, agents, employees or contractors under this
Agreement; (iii) a material breach by Bayer of any term of this Agreement, (iv) a material breach
by Bayer of any obligation, representation, warranty or covenant hereunder; or (v) a violation of
Applicable Law in the performance of its duties under this Agreement by Bayer, its Affiliates or
any of its Sublicensees or their respective directors, officers, agents, employees or contractors,
in each case except to the extent caused by (a) the gross negligence or willful intentional
misconduct of Nektar, its Affiliates, or Sublicensees, or any of their respective directors,
officers, agents, contractors or employees under this Agreement; (b) material breach by Nektar of
any term of this Agreement; (c) the material breach by Nektar of any obligation, representation,
covenant or warranty hereunder; or (d) any violation of Applicable Law in the performance of its
duties under this Agreement by Nektar, its Affiliates, or Sublicensees, or any of their respective
directors, officers, agents, contractors or employees.

          14.2 Bayer’s Right to Indemnification. Nektar shall indemnify, defend and hold harmless each
of Bayer and its Affiliates and their respective successors, assigns, directors, officers,
employees and agents, from and against any and all Damages of whatever kind or nature (but not
including taxes) arising from any Third Party demand, investigation, claim, action or suit in the
Territory to the extent based on (i) any act, whether of omission or commission, by Nektar (or its
Affiliates or any of their respective directors, officers, agents, employees or

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contractors) with respect to its failure to properly discharge or perform its areas of
responsibility under this Agreement, including, without limitation, the supply of the Device
(including without limitation any defect or alleged defect in the Device provided pursuant to this
Agreement or any injury or death of any person arising out of or related to any Device provided
pursuant to this Agreement), the supply of Formulated Amikacin for Clinical Trials, and the conduct
of Phase I Clinical Trials, [***], and Phase II Clinical Trials by Nektar, except in each case for
those types of Damages for which Bayer has an obligation to indemnify Nektar and its Affiliates
pursuant to Section 14.1; (ii) the gross negligence or willful or intentional misconduct of Nektar,
its Affiliates or any of its Sublicensees or any of their respective directors, officers, agents,
employees or contractors under this Agreement; (iii) a material breach by Nektar of any term of
this Agreement; or (iv) a material breach by Nektar of any obligation, representation, warranty or
covenant hereunder; or (v) a violation of Applicable Law in the performance of its duties under
this Agreement by Nektar, its Affiliates or any of its Sublicensees or their respective directors,
officers, agents, employees or contractors, in each case except to the extent caused by (a) the
gross negligence or willful intentional misconduct of Bayer, its Affiliates, or Sublicensees, or
any of their respective directors, officers, agents, contractors or employees under this Agreement;
(b) material breach by Bayer of any term of this Agreement; (c) the material breach by Bayer of any
obligation, representation, covenant or warranty hereunder; or (d) any violation of Applicable Law
in the performance of its duties under this Agreement by Bayer, its Affiliates, or Sublicensees, or
any of their respective directors, officers, agents, contractors or employees.

          14.3 Process for Indemnification. A Party’s obligation to defend, indemnify and hold harmless
the other Party under this Article 14 shall be conditioned upon the following:

               (a) A Party seeking indemnification under this Article 14 (the “Indemnified Party”) shall give
prompt written notice of the claim to the other Party (the “Indemnifying Party”).

               (b) Each Party shall furnish promptly to the other, copies of all papers and official
documents received in respect of any Damages. The Indemnified Party shall cooperate as requested
by the Indemnifying Party in the defense against any Damages.

               (c) With respect to any Damages relating solely to the payment of money damages and which will
not result in the Indemnified Party’s becoming subject to injunctive or other relief or otherwise
adversely affecting the business of the Indemnified Party in any manner, and as to which the
Indemnifying Party shall have acknowledged in writing the obligation to indemnify the Indemnified
Party under this Article 14, the Indemnifying Party shall have the sole right to defend, settle or
otherwise dispose of such Damages, on such terms as the Indemnifying Party, in its sole discretion,
shall deem appropriate.

               (d) With respect to Damages relating to all other matters, the Indemnifying Party shall have
the sole right to control the defense of such matter, provided that the Indemnifying Party shall
obtain the written consent of the Indemnified Party, which consent

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shall not be unreasonably withheld or delayed, prior to ceasing to defend, settling or
otherwise disposing of any Damages if as a result thereof (i) the Indemnified Party would become
subject to injunctive or other equitable relief or any remedy other than the payment of money by
the Indemnifying Party or (ii) the business of the Indemnified Party would be adversely affected.

               (e) The Indemnifying Party shall not be liable for any settlement or other disposition of
Damages by the Indemnified Party which is reached without the written consent of the Indemnifying
Party, which consent shall not be unreasonably withheld, conditioned or delayed, it being
understood that if such consent is withheld, the Indemnifying Party will be responsible for the
amount of damages or increased costs and expenses attributable to such failure to give consent.

          14.4 Insurance.

               (a) During the term of this Agreement and for [***] years thereafter, Bayer shall either (i)
maintain, at its sole expense, clinical trial and product liability insurance relating to the
Product that is comparable in type and amount to the insurance customarily maintained by Bayer with
respect to similar prescription pharmaceutical products that are marketed, distributed and sold in
the Territory, or (ii) self insure for such risks.

               (b) During the term of this Agreement and for [***] years thereafter, Nektar shall maintain,
at its sole expense, such types and amounts of insurance coverage as is appropriate and customary
in the pharmaceutical industry in light of the nature of the activities to be performed by Nektar
hereunder.

     15. Confidentiality

          15.1 Confidentiality; Exceptions. For the term of this Agreement and for a period of [***]
years thereafter, each Party shall maintain in confidence all Information and materials of the
other Party disclosed or provided to it by the other Party (either pursuant to this Agreement, or
the Confidential Disclosure Agreement entered into by Nektar and Bayer Pharmaceuticals Corporation
dated [***] (the “Confidential Disclosure Agreement”)), to the extent related to Amikacin, and
identified as confidential, either in writing or verbally (provided any verbally disclosed
Information is reduced to writing and submitted to the other Party within thirty (30) days of such
verbal disclosure) (together with all embodiments thereof, the “Confidential Information”).
Confidential Information also includes, but is not limited to, Information generated hereunder, and
Information regarding intellectual property and confidential or proprietary Information of Third
Parties. In addition, and notwithstanding the foregoing, if under Article 11 Information
constituting inventions and discoveries are to be owned by one Party, such Information shall be
deemed to be Confidential Information of such Party, even if such Information is initially
generated and disclosed by the other Party. The terms and conditions of this Agreement and the
Confidential Disclosure Agreement also shall be deemed Confidential Information of both Parties.
Notwithstanding the foregoing, Confidential

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Information shall not include that portion of Information or materials that the receiving
Party can demonstrate by contemporaneous written records was (i) known to the general public at the
time of its disclosure to the receiving Party, or thereafter became generally known to the general
public, other than as a result of actions or omissions of the receiving Party or anyone to whom the
receiving Party disclosed such Information; (ii) known by the receiving Party prior to the date of
disclosure by the disclosing Party; (iii) disclosed to the receiving Party on an unrestricted basis
from a source unrelated to the disclosing Party and not under a duty of confidentiality to the
disclosing Party; or (iv) independently developed by the receiving Party by personnel that did not
have access to or use of Confidential Information of the disclosing Party.

     Any combination of features or disclosures shall not be deemed to fall within the foregoing
exclusions merely because individual features are published or known to the general public or in
the rightful possession of the receiving Party unless the combination itself and principle of
operation thereof are published or known to the general public or are in the rightful possession of
the receiving Party.

          15.2 Degree of Care; Permitted Use. Each Party shall take reasonable steps to maintain the
confidentiality of the Confidential Information of the other Party, which steps shall be no less
protective than those steps that such Party takes to protect its own Information and materials of a
similar nature, but in no event less than a reasonable degree of care. Neither Party shall use or
permit the use of any Confidential Information of the other Party except for the purposes of
carrying out its obligations or exercising its rights under this Agreement or the Confidential
Disclosure Agreement, and neither Party shall copy any Confidential Information of the other Party
except as may be reasonably useful or necessary for such purposes. All Confidential Information of
a Party, including without limitation all copies and derivations thereof, is and shall remain the
sole and exclusive property of the disclosing Party and subject to the restrictions provided for
herein. Neither Party shall disclose any Confidential Information of the other Party other than to
those of its directors, officers, Affiliates, employees, licensors, independent contractors,
Sublicensees, assignees, agents and external advisors directly concerned with the carrying out of
this Agreement, on a strictly applied “need to know” basis; provided, however, that such directors,
officers, Affiliates, employees, licensors, independent contractors, Sublicensees, assignees,
agents and external advisors are subject to confidentiality and non-use obligations at least as
stringent as the confidentiality and non-use obligations provided for in this Article 15. Except
to the extent expressly permitted under this Agreement, the receiving Party may not use
Confidential Information of the other Party in applying for Patents or securing other intellectual
property rights without first consulting with, and obtaining the written approval of, the other
Party (which approval shall not be unreasonably withheld or delayed).

          15.3 Permitted Disclosures. The obligations of Sections 15.1, 15.2, and 16.1 shall not apply
to the extent that the receiving Party is required to disclose Information pursuant to (a) an order
of a court of competent jurisdiction, (b) Applicable Laws, (c) regulations or rules of a securities
exchange, (d) requirement of a governmental agency for purposes of obtaining approval to test or
market the Product, (e) disclosure of Information to a Patent office for the

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purposes of filing a Patent Application as permitted in this Agreement, or (f) the exercise by
each Party of its rights granted to it under this Agreement or its retained rights, including,
without limitation, the Exploitation of the Product, and such Third Party agrees to confidentiality
and non-use obligations at least as stringent as those specified for in this Article 15; provided
that the receiving Party shall provide prior written notice thereof to the disclosing Party and
sufficient opportunity for the disclosing Party to review and comment on such required disclosure
and request confidential treatment thereof or a protective order therefor.

          15.4 Irreparable Injury. The Parties acknowledge that either Party’s breach of this Article
15 would cause the other Party irreparable injury for which it would not have an adequate remedy at
law. In the event of a breach, the nonbreaching Party may seek injunctive relief, whether
preliminary or permanent, in addition to any other remedies it may have at law or in equity,
without necessity of posting a bond.

          15.5 Return of Confidential Information. Each Party shall return or destroy, at the other
Party’s instruction, all Confidential Information of the other Party in its possession upon
termination or expiration of this Agreement, except any Confidential Information that is necessary
to allow such Party to perform or enjoy any of its rights or obligations that expressly survive the
termination or expiration of this Agreement.

     16. Publicity

          16.1 Public Disclosure. The Parties agree that the initial public announcement of the
execution of this Agreement shall be in the form of a mutually agreed upon press release that
describes the nature and scope of the collaboration including its aggregate value (the “Initial
Public Disclosure”). In connection with the issuance of such press release, Nektar shall also be
permitted to make any filings required under Applicable Law, including without limitation filings
with the U.S. Securities and Exchange Commission to report the execution of this Agreement. During
the term of this Agreement, in all cases other than the announcement set forth in the Initial
Public Disclosure, each Party shall submit to the other Party (the “Non-Publishing Party”) for
review and approval all proposed press releases, academic, scientific and medical publications and
public presentations relating to the Product that have not been previously disclosed. Such review
and approval shall be conducted for the purposes of preserving intellectual property protection and
determining whether any portion of the proposed publication or presentation containing the
Confidential Information of the Non-Publishing Party should be modified or deleted, and (in the
case of a disclosure that Nektar wishes to make) to determine whether such disclosure is in the
best interests of the Parties in connection with the Development of the Product (such determination
to be made in Bayer’s reasonable discretion). Written copies of such proposed publications and
presentations (other than press releases) shall be submitted to the Non-Publishing Party no later
than [***] days before submission for publication or presentation; provided that, for general
disclosure of program status to investors or analysts, or in public conference or earnings calls
(“General Disclosure”) such [***] day period shall be shortened to [***] business days. Subject to
Applicable Law, written copies of proposed

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press releases shall be submitted to the Non-Publishing Party no later than [***] hours before
release. The Non-Publishing Party shall provide its comments, if any, and (if it so chooses) its
approval within (a) [***] business days, in the case of a press release, and (b) [***] business
days of its receipt of any other written copy. With respect to matters other than press releases,
the review period may be extended for an additional [***] days, or for General Disclosures [***]
business days, in the event the Non-Publishing Party can demonstrate reasonable need for such
extension, including, without limitation, the preparation and filing of Patent Applications. This
period may be further extended by mutual written agreement of the Parties. Nektar and Bayer will
each comply with standard academic practice regarding authorship of scientific publications and
recognition of contribution of other parties in any publications.

          16.2 Statement Regarding Collaboration. Subject to Applicable Law, any Information publicly
disclosed by Bayer relating to the Project for widespread public dissemination or release, whether
in the form of press releases, technical publications or other public statements regarding the
Project, shall include a prominent statement that the Project involves development and
commercialization of products for Pulmonary Delivery of Formulated Amikacin using Nektar’s
proprietary pulmonary delivery technology. Nektar shall not use any Bayer Trademark or any
derivation of the Bayer name without the advance express written consent of Bayer, which consent
may be granted or withheld in Bayer’s sole discretion.

     17. Trademarks

          17.1 Product Trademark; Use of Nektar Trademark. Subject to Section 7.7, the Product, the
Device, Product packaging (including, without limitation, ampoules and vials), promotional
materials, package inserts, and labeling shall bear one or more Trademark(s) chosen and owned by
Bayer. The Product, the Device, Product packaging (including, without limitation, ampoules and
vials), promotional materials, package inserts, and labeling shall also bear the Nektar Trademark
as provided in Section 7.7. Nektar grants to Bayer the right to use Nektar’s Trademarks solely to
the extent necessary for Bayer to exercise its rights and fulfill its obligations set forth in this
Agreement. Bayer shall not use any Nektar Trademark outside the scope of this Agreement, and shall
not knowingly take any action that would materially adversely affect the value of any Nektar
Trademark. Nektar shall retain the right to monitor the quality of the goods on or with which the
Nektar Trademark is used solely to the extent necessary to maintain Nektar’s Trademark rights.

          17.2 Trademark Prosecution and Maintenance. Bayer shall bear the full costs and expense of
and be responsible for filing, prosecuting and maintaining any Trademarks owned by Bayer. Nektar
shall bear the full costs and expense of and be responsible for filing, prosecuting and maintaining
any Trademarks owned by Nektar. The Parties shall jointly select a Product-specific Trademark and
shall jointly own such Trademark in the Shared Territory. For jointly filed, Product-specific
Trademark(s) in the Shared Territory, all of the cost and expenses incurred by the Parties under
this Agreement, including without limitation those incurred in connection with the selection,
preparation, filing, prosecution, and maintenance of Trademark(s)

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used in Commercialization of the Product, filing and maintenance fees paid to governmental
authorities, and the costs of litigation (enforcement or defense) or other proceedings, under such
Trademark(s), including without limitation fees and expenses paid to outside counsel (“Trademark
Expenses”), shall be shared by the Parties as follows: Bayer shall bear [***] of such costs and
expenses, and Nektar shall bear [***] of such costs and expenses. Bayer shall solely own and shall
be responsible for filing, prosecuting and maintaining any Product-specific Trademarks in the
Royalty Territory and conducting litigation with respect thereto. Bayer shall solely bear all
costs and expenses associated with such activities for any Product-specific Trademark in the
Royalty Territory.

     18. Term and Termination

          18.1 Term. The term of this Agreement shall commence as of the Effective Date and, unless
sooner terminated as specifically provided in this Agreement, shall continue in effect on a
country-by-country basis until the expiration of all royalty and payment obligations in each
country in the Territory. Upon expiration of all royalty and payment obligations in each country
in the Territory, Bayer shall have a royalty-free, paid-up, non-exclusive license in such country.

          18.2 Termination by Bayer.

               (a) Bayer shall have the right to terminate the Agreement [***] days’ prior written notice.
If Bayer terminates the Agreement pursuant to this Section 18.2(a), Bayer shall pay to Nektar a
termination fee equal to:

                    (i) [***], if such termination occurs [***]; or

                    (ii) [***], if such termination occurs [***]; or

                    (iii) [***], if such termination occurs [***].

Bayer shall pay such amount to Nektar in immediately available funds within [***] days after the
effective date of such termination. The foregoing termination payment shall be in lieu of, and in
substitution for, any reimbursement of costs, expenses or fees otherwise reimbursable (other than
any Milestone Payments accrued but not yet paid) by Bayer to Nektar pursuant to this Agreement or
any other payments with respect to activities relating to the Product under this Agreement (but
only to the extent the obligation to make such payments has not accrued prior to the effective date
of such termination).

               (b) Bayer shall have the right to terminate the Agreement, at any time, upon [***] days’ prior
written notice to Nektar in the event (i) of any development that causes the Product to fail to
meet or to no longer meet the MACP that is outside of Bayer’s reasonable control, or (ii) that
Bayer’s Global Pharmacovigilance Team (or any successor thereto within Bayer) determines that
Development or Commercialization of the Product must be terminated

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because of safety issues outside of Bayer’s reasonable control (either of (i) or (ii), an
“Unanticipated Development”). If Bayer terminates the Agreement for an Unanticipated Development,
then Bayer and Nektar shall continue to bear their respective share of noncancellable costs and
expenses becoming due after the effective date of such termination, to the extent such costs and
expenses were set forth in a relevant Plan; provided that the Parties shall use reasonable efforts
to minimize expenditures after the effective date of such termination. Upon request by Nektar,
Bayer shall provide documentation to support its determination of the occurrence of an
Unanticipated Development and meet with Nektar upon request to explain the basis for such
determination.

          18.3 Termination by Nektar. Nektar shall have the right to terminate the Agreement, at any
time, upon [***] days’ prior written notice to Bayer in the event that Nektar determines that
Development or Commercialization of the Product must be terminated [***]. If Nektar terminates the
Agreement in accordance with the foregoing, then Nektar and Bayer shall continue to bear their
respective share of noncancellable costs and expenses becoming due after the effective date of such
termination, to the extent such costs and expenses were set forth in a relevant Plan; provided that
the Parties shall use reasonable efforts to minimize expenditures after the effective date of such
termination. Upon request by Bayer, Nektar shall provide documentation to support its
determination and meet with Bayer upon request to explain the basis for such determination.

          18.4 Termination for Material Breach. If either Party believes the other is in material
breach of a material obligation under this Agreement, it may give notice of such breach to the
other Party, which other Party shall have [***] days in which to remedy such breach, or [***] days
in the case of breach (whether material or not) of any payment obligation hereunder. Such [***] day
period shall be extended in the case of a breach not capable of being remedied in such [***] day
period so long as the breaching Party uses diligent efforts to remedy such breach and is pursuing a
course of action that, if successful, will effect such a remedy. If such alleged breach is not
remedied in the time period set forth above, the nonbreaching Party shall be entitled, without
prejudice to any of its other rights conferred on it by this Agreement, and in addition to any
other remedies available to it by law or in equity, to terminate this Agreement upon written notice
to the other Party. In the event of a dispute regarding any payments due and
owing hereunder, all undisputed amounts shall be paid when due, and the balance, if any, shall
be paid promptly after settlement of the dispute, including without limitation any accrued interest
thereon.

          18.5 Termination upon Insolvency. Either Party may terminate this Agreement if, at any time,
the other Party shall file in any court or agency pursuant to any statute or regulation of any
state or country, a petition in bankruptcy or insolvency or for reorganization or for an
arrangement or for the appointment of a receiver or trustee of that Party or of its assets, or if
the other Party proposes a written agreement of composition or extension of its debts, or if the
other Party shall be served with an involuntary petition against it, filed in any insolvency
proceeding, and such petition shall not be dismissed within [***] days after the filing thereof, or

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if the other Party shall propose or be a Party to any dissolution or liquidation, or if the other
Party shall make an assignment for the benefit of its creditors.

          18.6 Termination by Bayer Pursuant to Section 18.2 or by Nektar Pursuant to Section 18.3 or
18.4. In the event that Bayer terminates this Agreement under Sections 18.2(a) or 18.2(b), or if
Nektar terminates this Agreement under Sections 18.3 or 18.4, then, as of the effective date of
such termination, the following terms and conditions shall apply:

               (a) The license grants in Section 2.1 shall terminate and all rights with respect thereto
shall revert in their entirety to Nektar.

               (b) Unless such termination was by Bayer under Section 18.2(b)(ii) or by Nektar under Section
18.3, subject to any Third Party (excluding Agents of Bayer) rights existing at the time of
termination and to the extent that technology covered by a Patent Controlled by Bayer or its
Affiliates or an Agent of Bayer is incorporated into or is otherwise used in connection with the
Product by Bayer during the Development or Commercialization of the Product pursuant to this
Agreement, Bayer agrees that neither it nor its Agents will, and Bayer shall cause its Affiliates
not to, assert against Nektar, its subsidiaries, Affiliates or sublicensees, any claim, or
institute any action or proceeding, whether at law or equity, under any intellectual property
rights, including without limitation Patents or Patent Applications, that may prevent Nektar, its
Affiliates or sublicensees from making, having made, using, having used, promoting, developing,
offering for sale, selling, having sold, importing, having imported, exporting, having exported or
marketing the Product as it exists as of the termination date. This covenant shall be binding
upon, and inure to the benefit of, the Parties, their successors, and assigns. Nektar’s
sublicensees for the Product shall be Third Party beneficiaries of this Section 18.6(b).

               (c) Bayer shall, without additional consideration, assign to Nektar all of Bayer’s right,
title and interest in and to (i) the continuation Patent Application [***], and (ii) any
Patents or Patent Applications assigned to Bayer under Section 11.3(a)(i). Nektar shall bear, in
its sole discretion, the full costs and expense of and be solely responsible for prosecuting,
maintaining, enforcing and defending the Nektar Patent Rights and any Patents or Patent
Applications assigned to Nektar pursuant to this Section 18.6(c).

               (d) Unless such termination was by Bayer under Section 18.2(b)(ii) or by Nektar under Section
18.3, Bayer shall, without additional consideration, assign to Nektar all of Bayer’s right, title
and interest in and to any Patent Applications or Patents developed pursuant to and during the
course of the Agreement relating solely to [***]. Nektar shall bear, in its sole
discretion, the full costs and expense of and be solely responsible for prosecuting, maintaining,
enforcing and defending the Nektar Patent Rights and any Patents or Patent Applications assigned to
Nektar pursuant to this Section 18.6(d).

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               (e) For prosecution and maintenance of Joint Patent Rights, Section 11.3(a)(iii) shall survive
and apply. If neither Party wishes to pursue or maintain any Patents or Patent Applications
associated with Joint Patent Rights, then such Patents or Patent Applications shall be allowed to
go abandoned.

               (f) For Joint Patent Rights (other than those assigned to Nektar pursuant to this Section
18.6), the Parties shall jointly enforce such Patents throughout the Territory and share the costs
associated with such enforcement and any recoveries associated therewith as follows: Bayer shall
bear or receive [***] of such costs or recovery, as applicable, and Nektar shall bear or
receive [***] of such costs or recovery, as applicable. If one Party chooses not to
participate in enforcement of the Joint Patent Rights, the other Party shall have the right to
enforce such Patents (provided all of the costs and expenses of both Parties incurred in connection
with such enforcement shall be borne by the enforcing Party), including without limitation the
right to settle such litigation (subject to the next sentence of this Section 18.6(f)) at its sole
expense and to keep all recoveries associated therewith. The joint consent of Bayer and Nektar
(which consent shall not be unreasonably withheld or delayed) shall be required of any settlement,
consent judgment or other voluntary final disposition of a suit under this Section 18.6(f) that
could adversely affect the other Party’s interest. If, in any enforcement action taken pursuant to
this Section 18.6(f), the enforcing Party determines that the other Party is an indispensable party
to such action, the other Party hereby consents to be joined in such action and, in such event, the
other Party shall have the right to be represented in such action using counsel of its own choice
at the enforcing Party’s expense. Notwithstanding the foregoing, each Party’s enforcement rights
under this Section 18.6(f) shall be subject to limitations imposed in any license agreement with a
Third Party existing as of the Effective Date relating to the Patent to be enforced.

               (g) Unless such termination was by Bayer under Section 18.2(b)(ii) or by Nektar under Section
18.3, to the extent they are assignable, Bayer shall execute any documents necessary to transfer
Bayer’s rights under any Third Party licenses obtained solely or jointly by Bayer pursuant to and
during the course of the Agreement under Section 11.4 to Nektar, and Nektar shall thereafter be
responsible for all costs, expenses and obligations associated with such Third Party licenses.

               (h) Unless such termination was by Bayer under Section 18.2(b)(ii) or by Nektar under Section
18.3, Bayer shall, without additional consideration, assign to Nektar all of its right, title and
interest in and to any Product-specific Trademark filed during the course of and pursuant to the
Agreement. Nektar shall bear, in its sole discretion, the full costs and
expense of and be solely responsible for prosecuting, maintaining, enforcing and defending any
Product-specific Trademark in the Territory after the effective date of termination.

               (i) Unless such termination was by Bayer under Section 18.2(b)(ii) or by Nektar under Section
18.3, upon Nektar’s request, Bayer shall transfer to Nektar, and Nektar shall have the right to
use, all materials, results, analyses, reports, websites, marketing materials,

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technology,
know-how, regulatory filings and other Information, reasonably required by Nektar, in whatever form
developed, controlled or generated as of the effective date of such termination by or on behalf of
Bayer, its Affiliates or Sublicensees with respect to the Product. Bayer agrees to submit to the
FDA and other Regulatory Authorities in jurisdictions in which any regulatory filings have been
made with respect to the Product, within [***] days after the effective date of such termination, a
letter (with a copy to Nektar) notifying the FDA and such other Regulatory Authorities of the
transfer of any regulatory filings for the Product in such jurisdictions from Bayer to Nektar.
Additionally, Bayer will grant to Nektar any rights of reference or access to regulatory filings
necessary to practice the rights granted to it under this Section 18.6. All transfers described in
this Section 18.6(i) shall be at Bayer’s expense.

               (j) Unless such termination was by Bayer under Section 18.2(b)(ii) or by Nektar under Section
18.3, if Bayer at the time was supplying Formulated Amikacin, Bayer shall supply Nektar’s or its
designee’s requirements of Formulated Amikacin and, using such Amikacin and the Device supplied by
Nektar, Product in final packaged form at commercially reasonable prices until the earlier of
Nektar’s qualification of alternate supply sources, or [***] months after termination.

               (k) For any Patents or Patent Applications covering Inventions owned by Bayer under Section
11.2(a)(ii) that are not assigned to Nektar upon termination of this Agreement in accordance with
Section 18.6(d), the license granted to Nektar in Section 11.2(a)(ii)(A) shall be expanded to
include the entire Territory.

               (l) Surviving Rights. Except where expressly provided for otherwise in this Agreement,
termination of this Agreement by Nektar pursuant to Section 18.3 or 18.4 or termination of this
Agreement by Bayer pursuant to Section 18.2(a) or Section 18.2(b), shall not relieve the Parties of
any liability, including without limitation any obligation to make payments hereunder, which
accrued hereunder prior to the effective date of such termination, nor preclude any Party from
pursuing all rights and remedies it may have hereunder or at law or in equity with respect to any
breach of this Agreement, nor prejudice any Party’s right to obtain performance of any obligation.
In the event of such termination, the following provisions shall survive in addition to others
specified in this Agreement to survive in such event: Sections 8.5—8.10 (solely to the extent
applicable to the amounts due and owing to Nektar as of the effective date of such termination).

          18.7 Termination by Bayer for Material Breach by Nektar. In the event that Bayer terminates
this Agreement under Section 18.4, then as of the effective date of such termination, the following
terms and conditions shall apply:

               (a) The license grant in Section 11.2(a)(ii)(A) shall terminate and all rights with respect
thereto shall revert in their entirety to Bayer, provided that the license set forth in Section
11.2(a)(ii)(B) shall continue in full force and effect.

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               (b) The license grants in Section 2.1 shall continue. In addition, Bayer shall have a
royalty-bearing license pursuant to the terms set forth in Section 18.7(i), under the Nektar
Know-How and Nektar Patent Rights, to make and have made the Device solely in connection with
Exploitation of the Product in the Field throughout the Territory.

               (c) The co-exclusive license in Section 2.1(b)(i) shall become exclusive as of the effective
date of such termination.

               (d) Nektar shall grant a sublicense to Bayer under any Third Party licenses obtained by Nektar
pursuant to and during the course of this Agreement under Section 11.4.

               (e) Nektar shall, without additional consideration, assign to Bayer all of Nektar’s right,
title and interest in and to any Patents or Patent Applications assigned to Nektar under Section
11.3(a)(ii). Bayer shall bear, in its sole discretion, the full costs and expense of and be solely
responsible for prosecuting, maintaining, enforcing and defending any Patents or Patent
Applications assigned to Bayer pursuant to this Section 18.7(e).

               (f) Nektar shall, without additional consideration, assign to Bayer all of its right, title
and interest in and to any Product-specific Trademark filed during the course of and pursuant to
the Agreement. Bayer shall bear, in its sole discretion, the full costs and expense of and be
solely responsible for prosecuting, maintaining, enforcing and defending any Product-specific
Trademark in the Territory after the effective date of termination.

               (g) Upon Bayer’s request, Nektar shall transfer to Bayer, and Bayer shall have the right to
use, all materials, results, analyses, reports, websites, marketing materials, technology,
know-how, regulatory filings and other Information, reasonably required by Bayer, in whatever form
developed, controlled or generated as of the effective date of such termination by or on behalf of
Nektar, its Affiliates or Sublicensees with respect to the Product. Additionally, Nektar will
grant to Bayer any rights of reference or access to regulatory filings necessary to practice the
rights granted to it under this Section 18.7. All transfers described in this Section 18.7(g)
shall be at Nektar’s expense.

               (h) Nektar shall supply Bayer’s or its designee’s requirements of the Device at commercially
reasonable prices until the earlier of Bayer’s qualification of alternate supply sources, or [***]
months after termination.

               (i) Bayer shall continue to pay royalties in the Royalty Territory in accordance with Section
8.4(a), (b), (c), (e) and (f) and Sections 8.5-8.10 provided that Bayer shall not be required to
make any additional royalty payments under Section 8.4(d). However, Bayer shall continue to pay
Milestone Payments under Section 8.3. In addition, Bayer may either:

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                    (x) treat the Shared Territory as the Royalty Territory for purposes of the payments to be
made under Section 8.4(a), (b), (c), (e) and (f) and Sections 8.5-8.10 (but not for purposes of
Section 8.4(d)), provided that the Net Sales in the Shared Territory shall not be aggregated with
Net Sales in the Royalty Territory for purposes of payments to be made under Section 8.4(a), in
which case Bayer shall be deemed to have elected its remedy for such breach by Nektar and shall not
have the right to pursue other remedies available to it under law or in equity in connection with
such breach, or

                    (y) treat the Shared Territory as the Royalty Territory for purposes of the payments to be
made under Section 8.4(a), (b), (c), (e) and (f) and Sections 8.5-8.10 (but not for purposes of
Section 8.4(d)), provided that the Net Sales in the Shared Territory shall not be aggregated with
Net Sales in the Royalty Territory for purposes of payments to be made under Section 8.4(a), and
further provided that the royalty rate applicable to the Shared Territory under Section 8.4(a)
shall be fixed at [***] of annual Net Sales in the Shared Territory [***], in which case Bayer
shall retain the right to pursue other remedies available to it under law or in equity in
connection with such breach.

In the case that either clause (x) or (y) of this Section 18.7(i) applies: (A) Nektar would
thereafter no longer be obligated to bear any portion of Allowable Expenses and would not be
entitled to participate in Product Profit and Loss under Section 8.2(b)(i), (B) Nektar, after the
effective date of such termination, shall be solely responsible for the payment of all amounts
[***] with respect to the Territory, and (C) all of the Parties’ payment obligations, other than
those relating to Product Profit and Loss and Allowable Expenses, as set forth in this Agreement
will continue to apply. For clarity, milestone payments payable by Bayer to Nektar pursuant to
Section 8.4(d) shall not accrue based on sales of the Product in the Shared Territory.

               (j) To the extent that technology covered by a Patent Controlled by an Agent of Nektar is
incorporated into or is otherwise used in connection with the Product by Nektar during the
Development or Commercialization of the Product pursuant to this Agreement, Nektar agrees that its
Agents will not assert against Bayer, its subsidiaries, Affiliates or sublicensees, any claim, or
institute any action or proceeding, whether at law or equity, under any intellectual property
rights, including without limitation Patents or Patent Applications, that may prevent Bayer, its
Affiliates or sublicensees from making, having made, using, having used, promoting, developing,
offering for sale, selling, having sold, importing, having imported, exporting, having exported or
marketing the Product as it exists as of the termination date. This covenant shall be binding
upon, and inure to the benefit of, the Parties, their successors, and assigns. Bayer’s
sublicensees for the Product shall be Third Party beneficiaries of this Section 18.7(j).

               (k) Surviving Rights. Except where expressly provided for otherwise in this Agreement,
termination of this Agreement pursuant to Section 18.4 for Nektar’s breach shall not relieve the
Parties of any liability, including without limitation any obligation to make payments hereunder,
which accrued hereunder prior to the effective date of such termination, nor

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preclude any Party
from pursuing all rights and remedies it may have hereunder or at law or in equity with respect to
any breach of this Agreement, nor prejudice any Party’s right to obtain performance of any
obligation. In the event of such termination, the following provisions shall survive in addition
to others specified in this Agreement to survive in such event: Sections 2.1—2.5 (subject to
Sections 18.7(b) and (c)), 5.2(c), 5.8, 8.3, 8.4(a)—(c) and 8.4(e) and (f), 8.5-8.10, 11.3(a)
(subject to Section 18.7(e)), 11.5, and 17.1 (first two sentences only).

          18.8 General Surviving Obligations. The rights and obligations set forth in this Agreement
shall extend beyond the expiration or termination of the Agreement only to the extent expressly
provided for herein, or to the extent that the survival of such rights or obligations are necessary
to permit their complete fulfillment or discharge. Without limiting the foregoing, the Parties
have identified various rights and obligations which are understood to survive, as follows. In the
event of expiration or termination of this Agreement for any reason, the following provisions shall
survive in addition to others specified in this Agreement to survive in such event. Termination of
this Agreement shall not terminate Bayer’s obligation to pay all Milestone Payments, royalties and
other payments which shall have accrued hereunder (including without limitation any Milestone
Payments then accrued because the event has occurred but the Milestone Payment is not yet due).
Additionally, the rights and obligations of the Parties under Sections 10.2—10.3 (for the period
set forth in Section 10.4), 11.1 (first sentence only), 11.2 (subject to Sections 18.6 and 18.7),
13.1 (for the period set forth therein), 14.1—14.3, 14.4 (for the period set forth therein), and
Articles 1, 15 (for the period set forth therein), 18 (as applicable), 19, and 20, and payment
obligations for rights accrued under Article 11 (subject to Sections 18.6(c)-18.6(h)) as of the
effective date of expiration or termination date shall survive the termination or expiration of
this Agreement.

          18.9 Challenge.

               (a) Nektar shall have the right to terminate this Agreement immediately upon written notice if
Bayer or its Affiliate challenges in a court of competent jurisdiction, the validity, scope or
enforceability of, or otherwise opposes, any Patent included in the Nektar Patent Rights, [***].
If a Sublicensee of Bayer or its Affiliate challenges the validity, scope or enforceability of or
otherwise opposes any Patent included in the Nektar Patent Rights under which such Sublicensee is
sublicensed, then Bayer or its Affiliate, as applicable, shall, upon written notice from Nektar,
terminate such sublicense. Bayer and its Affiliates shall include provisions in all agreements
under which a Third Party obtains a license under any Patent included in the Nektar Patent Rights
providing that, if the Sublicensee challenges the validity or enforceability of or otherwise
opposes any such Patent under which the Sublicensee is sublicensed, then Bayer may terminate such
sublicense agreement with such Sublicensee, and Bayer shall, upon request by Nektar, enforce such
right if such Sublicensee breaches such restriction.

               (b) Bayer shall have the right to terminate this Agreement immediately upon written notice if
Nektar or its Affiliate challenges in a court of competent

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jurisdiction, the validity, scope or
enforceability of or otherwise opposes any Patent licensed to Nektar under Section 11.2(a)(ii). If
a Sublicensee of Nektar or its Affiliate challenges the validity, scope or enforceability of, or
otherwise opposes, any Patent licensed to Nektar under Section 11.2(a)(ii) under which such
Sublicensee is sublicensed, then Nektar or its Affiliate, as applicable, shall, upon written notice
from Bayer, terminate such sublicense. Nektar and its Affiliates shall include provisions in all
agreements under which a Third Party obtains a license under any Patent licensed to Nektar under
Section 11.2(a)(ii) providing that if the sublicensee challenges the validity or enforceability of
or otherwise oppose any such Patent under which the sublicensee is sublicensed, Nektar or its
Affiliate, as applicable, may terminate its sublicense agreement with such sublicensee, and Nektar
shall, upon request by Bayer, enforce such right if such sublicensee breaches such restriction.

          18.10 Accrued Rights, Surviving Obligations. Termination or expiration of this Agreement
shall not relieve either Party from obligations that are expressly indicated to survive termination
or expiration of the Agreement. Except as otherwise provided for in this Agreement, termination by
a Party shall not be an exclusive remedy, and all other remedies will be available to the
terminating Party, in equity and at law.

          18.11 Rights in Bankruptcy. All rights and licenses granted under or pursuant to this
Agreement by Nektar or Bayer are, and shall otherwise be deemed to be, for purposes of Section
365(n) of the United States Bankruptcy Code, licenses of right to “intellectual property” as
defined under Section 101 of the United States Bankruptcy Code. The Parties agree that the
Parties, as licensees of such rights under this Agreement, shall retain and may fully exercise all
of their rights and elections under the United States Bankruptcy Code. The Parties further agree
that, in the event of the commencement of a bankruptcy proceeding by or against either Party under
the United States Bankruptcy Code, the Party that is not a party to such proceeding shall be
entitled to a complete duplicate of (or complete access to, as appropriate) any such intellectual
property and all embodiments of such intellectual property, which, if not already in the
non-subject Party’s possession, shall be promptly delivered to it (a) upon any such commencement of
a bankruptcy proceeding upon the non-subject Party’s written request therefor, unless the Party
subject to such proceeding elects to continue to perform all of its obligations under this
Agreement or (b) if not delivered under clause (a) above, following the rejection of this Agreement
by or on behalf of the Party subject to such proceeding upon written request therefor by the
non-subject Party.

     19. LIMITATION OF LIABILITY AND EXCLUSION OF DAMAGES; DISCLAIMER OF WARRANTY

          19.1 EXCEPT IN THE CASE OF A BREACH OF ARTICLE 15, AND WITHOUT LIMITING THE PARTIES’
OBLIGATIONS UNDER ARTICLE 14, NEITHER PARTY SHALL BE LIABLE TO THE OTHER PARTY FOR SPECIAL,
INDIRECT, INCIDENTAL, PUNITIVE OR CONSEQUENTIAL DAMAGES (INCLUDING WITHOUT LIMITATION, DAMAGES
RESULTING FROM LOSS OF USE, LOSS OF PROFITS,

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INTERRUPTION OR LOSS OF BUSINESS OR OTHER ECONOMIC LOSS) ARISING OUT OF THIS AGREEMENT OR WITH
RESPECT TO A PARTY’S PERFORMANCE OR NON-PERFORMANCE HEREUNDER.

          19.2 EXCEPT AS EXPRESSLY PROVIDED IN THIS AGREEMENT, NEITHER PARTY PROVIDES ANY WARRANTIES,
WHETHER WRITTEN OR ORAL, EXPRESS OR IMPLIED, REGARDING THE PRODUCT, FORMULATED AMIKACIN OR THE
DEVICE USED IN PRECLINICAL STUDIES OR CLINICAL TRIALS OR FOR COMMERCIAL USE, AND EACH PARTY HEREBY
DISCLAIMS ALL OTHER WARRANTIES, WHETHER WRITTEN OR ORAL, EXPRESS AND IMPLIED, INCLUDING WITHOUT
LIMITATION THE IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND FREEDOM
FROM INFRINGEMENT OF THIRD PARTY RIGHTS.

     20. Miscellaneous

          20.1 Agency. Neither Party is, nor shall be deemed to be, an employee, agent, co-venturer or
legal representative of the other Party for any purpose. Neither Party shall be entitled to enter
into any contracts in the name of, or on behalf of the other Party, nor shall either Party be
entitled to pledge the credit of the other Party in any way or hold itself out as having the
authority to do so.

          20.2 Assignment; Change of Control.

               (a) Except as otherwise provided in this Agreement, neither this Agreement nor any interest
hereunder shall be assignable by any Party without the prior written consent of the other Party
(which consent shall not be unreasonably withheld or delayed following the conclusion of the
Project); provided, however, (i) the assignment of this Agreement by operation of law pursuant to a
merger or consolidation of either Party with or into any Third Party shall, regardless of the
identity of the surviving entity to such merger or consolidation, not be deemed an assignment in
violation of this Section 20.2, (ii) either Party, without such consent, may assign its rights and
delegate its duties hereunder to an Affiliate thereof without obtaining such consent, provided that
the assigning Party agrees to remain primarily (and not secondarily or derivatively) liable for the
full and timely performance by such Affiliate of all its obligations hereunder, and (iii) either
Party, without such consent, may assign its rights and delegate its duties hereunder to a successor
entity or acquirer, provided that the assigning Party agrees to remain primarily (and not
secondarily or derivatively) liable for the full and timely performance by such assignee of all its
obligations hereunder.

               (b) If Nektar undergoes a Change of Control, Bayer shall have the right, exercisable within
[***] days of its receipt of notice from Nektar of such Change of Control to do any or all of the
following, (i) to terminate Nektar’s co-promotion rights under Section 7.3, 7.4 and 7.8, (ii) to
treat the Shared Territory as the Royalty Territory for purposes of

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the payments to be made under
Section 8.4(a), (b), (c), (e) and (f) and Sections 8.5-8.10 (but not for purposes of Section
8.4(d)) under this Agreement, provided that the Net Sales in the Shared
Territory shall not be aggregated with Net Sales in the Royalty Territory for purposes of
payments to made under Section 8.4(a)), and further provided that the royalty rate applicable to
the Shared Territory under Section 8.4(a) shall be fixed at [***] of annual Net Sales in the Shared
Territory [***] (a “Royalty Conversion”), and/or (iii) to terminate Nektar’s participation in the
GPT, GBT, and RBU in which case the Parties shall form new committees to govern the
Commercialization and Development, respectively, of the Product, each of which committees has equal
representation by each of Bayer and Nektar and which shall operate as set forth in Sections 3.4(c),
3.5(c), and 3.6(c), respectively, with such newly formed committees having the responsibilities
formerly held by the GPT, GBT, and RBU, respectively. If Bayer elects a Royalty Conversion, Nektar
would thereafter no longer be obligated to bear any portion of Allowable Expenses and would not be
entitled to participate in Product Profit and Loss under Section 8.2(b)(i). In such event, (A)
Nektar shall thereafter be solely responsible for the payment of all amounts [***] with respect to
the Territory, and (B) all of the Parties’ payment obligations, other than those relating to
Product Profit and Loss and Allowable Expenses, as set forth in this Agreement will continue to
apply. For clarity, milestone payments payable to Nektar pursuant to Section 8.4(d) shall not
accrue based on sales in the Shared Territory.

               (c) This Agreement shall be binding upon and inure to the successors and permitted assignees
of the Parties and the name of a Party appearing herein shall be deemed to include the names of
such Party’s successor’s and permitted assigns to the extent necessary to carry out the intent of
this Agreement. Any assignment not in accordance with this Section 20.2 shall be void.

          20.3 Further Actions. Each Party agrees to execute, acknowledge and deliver such further
instruments, and to do all such other acts, as may be necessary or appropriate in order to carry
out the purposes and intent of this Agreement.

          20.4 Force Majeure. Neither Party shall be liable or responsible to the other Party for loss
or damages, nor shall it have any right to terminate this Agreement for any default or delay
attributable to any event beyond its reasonable control and without its fault or negligence,
including but not limited to acts of God, acts of government (including injunctions), fire, flood,
earthquake, strike, lockout, labor dispute, breakdown of plant, shortage of critical equipment,
loss or unavailability of manufacturing facilities or material, casualty or accident, civil
commotion, acts of public enemies, acts or terrorism or threat of terrorist acts, blockage or
embargo and the like (a “Force Majeure Event”); provided, however, that in each such case the Party
affected shall use reasonable efforts to avoid such occurrence and to remedy it promptly. The
Party affected shall give prompt notice of any such cause to the other Party. The Party giving
such notice shall thereupon be excused from such of its obligations hereunder as it is thereby
disabled from performing for so long as it is so disabled and for [***] days thereafter and the
Party receiving notice shall be similarly excused from its respective obligations which it is
thereby disabled from performing; provided, however, that such affected Party commences

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and
continues to take reasonable and diligent actions to cure such cause. Notwithstanding the
foregoing, nothing in this Section 20.4 shall excuse or suspend the obligation to make any payment
due hereunder in the manner and at the time provided.

          20.5 Notices. All notices and other communications hereunder shall be in writing and shall be
deemed given if delivered personally or by facsimile transmission (receipt verified), telexed,
mailed by registered or certified mail (return receipt requested), postage prepaid, or sent by
express courier service, to the Parties at the following addresses (or at such other address for a
Party as shall be specified by like notice; provided that notices of a change of address shall be
effective only upon receipt thereof):

	 	 	 	 	 

	 

	 	If to Bayer, addressed to:
	 	Bayer Healthcare LLC
	 

	 	 	 	555 White Plains Road
	 

	 	 	 	Tarrytown, New York 01591
	 

	 	 	 	Attn: [***]
	 

	 	 	 	[***]
	 

	 	 	 	Facsimile: [***]
	 
	 	 	 	 
	 
	 	 	 	 
	 

	 	 	 	With copy to:
	 
	 	 	 	 
	 

	 	 	 	Bayer Healthcare AG
	 

	 	 	 	D-51368
	 

	 	 	 	Leverkusen, Germany
	 

	 	 	 	Attn: [***]
	 

	 	 	 	Facsimile: [***]
	 
	 	 	 	 
	 
	 	 	 	 
	 

	 	If to Aerogen, addressed to:
	 	Aerogen, Inc.
	 

	 	 	 	150 Industrial Road
	 

	 	 	 	San Carlos, CA U.S.A. 94070
	 

	 	 	 	Attention: Chief Executive Officer
	 
	 	 	 	 
	 

	 	 	 	With copy to:
	 
	 	 	 	 
	 

	 	 	 	Aerogen, Inc.
	 

	 	 	 	150 Industrial Road
	 

	 	 	 	San Carlos, CA U.S.A. 94070
	 

	 	 	 	Attention: Vice President, Corporate Legal
	 
	 	 	 	 
	 
	 	 	 	 
	 

	 	If to Nektar, addressed to:
	 	Nektar Therapeutics

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	 	 	 	150 Industrial Road
	 

	 	 	 	San Carlos, CA U.S.A. 94070
	 

	 	 	 	Attention: Chief Executive Officer
	 
	 	 	 	 
	 

	 	 	 	With copy to:
	 
	 	 	 	 
	 

	 	 	 	Nektar Therapeutics
	 

	 	 	 	150 Industrial Road
	 

	 	 	 	San Carlos, CA U.S.A. 94070
	 

	 	 	 	Attention: Vice President, Corporate Legal

          20.6 Amendment. No amendment, modification or supplement of any provision of this Agreement
shall be valid or effective unless made in writing and signed by a duly authorized officer of each
Party.

          20.7 Waiver. No provision of this Agreement shall be waived by any act, omission or knowledge
of a Party or its agents or employees except by an instrument in writing expressly waiving such
provision and signed by a duly authorized officer of the waiving Party.

          20.8 Counterparts. This Agreement may be executed simultaneously in two counterparts, either
one of which need not contain the signature of more than one Party but both such counterparts taken
together shall constitute one and the same agreement.

          20.9 Construction. The descriptive headings of this Agreement are for convenience only, and
shall be of no force or effect in construing or interpreting any of the provisions of this
Agreement. Except where the context otherwise requires, wherever used the singular shall include
the plural, the plural the singular, the use of any gender shall be applicable to all genders. The
terms “including” and “inclusive of” shall mean “including without limitation.” The language of
this Agreement shall be deemed to be the language mutually chosen by the Parties and no rule of
strict construction shall be applied against either Party hereto.

          20.10 Governing Law. This Agreement shall be governed by and interpreted in accordance with
the substantive laws of the State of New York, U.S.A. without regard to its or any other
jurisdiction’s choice of law rules. Any disputes under this Agreement shall be brought in the
state or federal courts located in the State of New York, U.S.A. The Parties irrevocably accept
the exclusive jurisdiction of such courts solely and specifically for the purpose of adjudicating
disputes arising out of or in connection with this Agreement and any other agreement entered into
pursuant hereto or in connection herewith (including without limitation matters regarding the
construction, interpretation and enforceability of such agreements), and in no event shall any
Party be deemed to have consented to such jurisdiction for any other purpose. Each Party further
agrees that such courts provide a convenient forum for any such action, and waives any objections
or challenges to venue with respect to such courts.

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          20.11 Severability. Whenever possible, each provision of this Agreement shall be interpreted
in such manner as to be effective and valid under Applicable Law, but if any provision of this
Agreement is held to be prohibited by or invalid under Applicable Law, such provision shall be
ineffective only to the extent of such prohibition or invalidity, without invalidating the
remainder of this Agreement. In the event of such invalidity, the Parties shall
seek to agree on an alternative enforceable provision that preserves the original purpose of
this Agreement.

          20.12 Compliance with Applicable Law. Each Party will comply with all Applicable Law in
performing its obligations and exercising its rights hereunder. Nothing in this Agreement shall be
deemed to permit Bayer to export, re-export or otherwise transfer any Information transferred
hereunder or Product manufactured therefrom without complying with Applicable Law.

          20.13 Entire Agreement of the Parties. This Agreement and the Exhibits attached hereto, and
any other agreements between the Parties effective as of the Effective Date relating to the subject
matter hereof, constitute and contain the complete, final and exclusive understanding and agreement
of the Parties hereto, and cancel and supersede any and all prior negotiations, correspondence,
understandings and agreements, whether oral or written, between the Parties respecting the subject
matter hereof (including the Confidential Disclosure Agreement to the extent it relates to Amikacin
but not to the extent it relates to any other subject matter disclosed thereunder), and neither
Party shall be liable or bound to any other Party in any manner by any representations, warranties,
covenants, or agreements except as specifically set forth herein or therein. Nothing in this
Agreement, express or implied, is intended to confer upon any Party, other than the Parties hereto
and their respective successors and assigns, any rights, remedies, obligations, or liabilities
under or by reason of this Agreement, except as expressly provided herein. To the extent that
anything set forth in an exhibit attached hereto conflicts with the terms of this Agreement, the
terms of this Agreement shall control.

          20.14 Performance by Affiliates.

               (a) Nektar recognizes that Bayer may perform some or all of its obligations under this
Agreement through Affiliates, including the performance by Bayer-Schering Pharma AG or Bayer
Healthcare AG of Bayer’s obligations arising in or to be performed in the Shared Territory,
provided, however, that Bayer shall remain responsible for the performance by its Affiliates and
shall use Commercially Reasonable Efforts to cause its Affiliates to comply with the provisions of
this Agreement in connection with such performance.

               (b) Bayer recognizes that Nektar may perform some or all of its obligations under this
Agreement through Affiliates, provided, however, that Nektar shall remain responsible for the
performance of its Affiliates and shall use Commercially Reasonable Efforts to cause its Affiliates
to comply with the provisions of this Agreement in connection with such performance.

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          20.15 Certain Additional Obligations. Any capitalized terms not defined in this Agreement and
used in this Section 20.15 shall have the meaning ascribed to them in the [***].

               (a) Subject to [***], Bayer acknowledges [***] as that interest appears.

               (b) Bayer acknowledges [***]’s disclaimer of warranty in [***] and the limitation on [***]’s
liability in [***].

               (c) Bayer agrees not to make any statements, representations or warranties whatsoever to any
person or entity, or accept any liabilities or responsibilities whatsoever from any person or
entity that are inconsistent with the disclaimers or limitations in [***].

               (d) Bayer shall also indemnify, defend and hold harmless [***].

               (e) For purposes of [***], Bayer self-insures.

               (f) Bayer agrees to refrain from using the name of [***] or any adaptation thereof in
publicity or advertising without the [***]’s prior written approval.

               (g) Nektar shall have the right to assign its rights, solely with respect to the license
granted by [***] to Nektar under [***], to [***] in the event [***].

               (h) Nektar agrees not to amend the [***] in any manner that would materially adversely affect
the rights of Bayer under the [***].

               (i) Nektar represents that the [***] has been achieved.

               (j) Nektar agrees not to materially breach its obligations to [***].

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     In Witness Whereof, the Parties hereto have caused this Agreement to be executed as
of the Effective Date by their duly authorized representatives as set forth below:

	 	 	 	 	 	 	 	 	 

	BAYER HEALTHCARE LLC
	 
	 	 	 	 	 	 	 	 
	By:
	 	 	 	 	 	 	 	 
	 

	 	 	 	 	 	 	 	 
	 
	 	 	 	 	 	 	 	 
	Name:

	 	[***]	 	 	 	 	 	 
	 

	 	 	 	 	 	 	 	 
	 
	 	 	 	 	 	 	 	 
	 
	 	 	 	 	 	 	 	 
	NEKTAR THERAPEUTICS	 	 	 	AEROGEN, INC.
	 
	 	 	 	 	 	 	 	 
	By:

	 	 	 	 	 	By:	 	 
	 

	 	 
	 	 	 	 	 	 
	 
	 	 	 	 	 	 	 	 
	Name:

	 	[***]
	 	 	 	Name:
	 	[***]
	 

	 	 
	 	 	 	 	 	 

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AMENDMENT NO. 1 TO CO-DEVELOPMENT, LICENSE AND CO-PROMOTION AGREEMENT

          This Amendment No. 1 (the “Amendment”) to that certain Co-Development, License and
Co-Promotion Agreement dated August 1, 2007 (the “Agreement”) is made and entered into effective as
of December 22, 2010 (the “Effective Date of the Amendment”), by and between Nektar Therapeutics,
a Delaware corporation (“Nektar”) and Bayer HealthCare LLC, a Delaware corporation (“Bayer”).

RECITALS

          WHEREAS, Bayer, Nektar and Aerogen, Inc. (“Aerogen”) were the original Parties to the
Agreement;

          WHEREAS, by Certificate of Dissolution filed on December 2, 2010, Aerogen was dissolved, with
Nektar undertaking all of the obligations and duties of Aerogen pursuant to the Agreement, and
having all of the rights of Aerogen pursuant to the Agreement, such that Aerogen is no longer a
Party to the Agreement;

          WHEREAS, by notice to Bayer dated November 24, 2008, Nektar exercised its right pursuant to
Section 8.2(b)(ii) of the Agreement to opt out of sharing Product Profit and Loss; and

          WHEREAS, the Parties have agreed to amend certain provisions of the Agreement as provided in
this Amendment;

          NOW, THEREFORE, in consideration of the foregoing, the covenants and promises contained in
this Amendment and other good and valid consideration, the receipt and sufficiency of which all
Parties acknowledge, and in accordance with and subject to the terms and conditions specified
below, the Parties agree as follows:

Amendment of the Agreement

          The Parties hereby agree to amend the Agreement as of the Effective Date of the Amendment as
provided below. Capitalized terms used in this Amendment that are not otherwise defined herein
shall have the meanings provided in the Agreement.

	 	1.	 	All references to “the Agreement” contained in any Section or subsection of the
Agreement shall mean “the Agreement as amended by this Amendment No. 1.”
	 
	 	2.	 	In recognition of the dissolution of Aerogen, with Nektar undertaking all of the
obligations and duties of Aerogen pursuant to the Agreement, except as set forth in (a)
Section 8.3(i), with respect to the reference to “Aerogen assets”; and (b) Section

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	 	 	 	8.4(f)(ii), with respect to the reference to “any third party Licensed by Aerogen under
the agreement attached in Exhibit 1.24”, all references in the Agreement to both
“Nektar” and “Aerogen” shall be deleted and replaced with references solely to Nektar,
and all references in the Agreement to “Aerogen” without reference to “Nektar” shall be
deleted and replaced by references to “Nektar.”
	 
	 	3.	 	The Parties agree that (a) the definition of the term “Shared Territory” in Section
1.107 is hereby deleted in its entirety and replaced by the following: “1.107 —
Reserved.”; and (b) all references in the Agreement to the term “Shared Territory” shall
be replaced by references to the term “United States.”
	 
	 	4.	 	The Parties agree to delete from the Agreement all references in the Agreement to the
following committees, wherever such references appear in the Agreement: the Global Brand
Team, or GBT; the Joint Finance Committee, or JFC; and the Regional Business Unit, or RBU
(all hereinafter referred to as the “Deleted Committees”). Such deletions to the Agreement
shall include, without limitation, the following Sections in their entirety: (a) Section
1.47 (“Global Brand Team” or “GBT”), Section 1.63 (“Joint Finance Committee” or “JFC”), and
Section 1.102 (“Regional Business Unit” or “RBU”); and all such deleted Sections shall be
replaced with the word “Reserved;” and (b) Section 3.3 (“Global Brand Team”), Section 3.5
(“Joint Finance Committee”), and Section 3.6 (“Regional Business Unit”); and the heading
of each such deleted Section shall be replaced with the word “Reserved.” To the extent
that any ministerial act is assigned in the Agreement to any such Deleted Committee, and
the continued performance of the Parties under the Agreement require that such ministerial
act be performed to carry out the intent of the Parties under the Agreement, then such
ministerial act shall be performed by the JSC, or as directed by the JSC, in each case as
shall be determined by the JSC.
	 
	 	5.	 	The Parties agree to delete from the Agreement all references to Nektar supplying Bayer
with Formulated Amikacin or Product; provided, however, that all references to Nektar
supplying Bayer with the Device shall continue to apply.
	 
	 	6.	 	Section 1.45 is hereby deleted in its entirety and replaced by the following:
	 
	 	 	 	“Fully Burdened Manufacturing Costs” means, as applicable to the Device manufactured by
Nektar or its Third Party supplier, Nektar’s or its Affiliate’s cost of manufacturing
such Device for Development or Commercial purposes, which is equal to the sum of (a) for
the Device, (or components thereof) made by Nektar, the costs of [***], in each case for
the manufacture of the Device (or components thereof), and (b) for the Device (or
components thereof) made by Nektar’s Third Party supplier, [***]. If Bayer provides its
consent to the costs of Nektar’s Third Party supplier, then Bayer shall be deemed to
have agreed that the costs of such supplier meet the standard of Competitive Pricing.
For clarity, Fully Burdened Manufacturing Cost shall not include [***]. Fully Burdened
Manufacturing Cost shall be calculated in a manner consistent with GAAP, consistently
applied.”

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	 	7.	 	The following new Section 1.115 is added to the Agreement:
	 
	 	 	 	1.115 “United States” means the United States of America, and its commonwealths and
territories, including without limitation the Commonwealth of Puerto Rico.
	 
	 	8.	 	Section 2.5 is hereby amended by adding the following Section 2.5.1 and Section 2.5.2
at the end of the existing Section 2.5:
	 
	 	 	 	“2.5.1 [***]
	 
	 	 	 	2.5.2 [***]”
	 
	 	9.	 	Section 3.2(a) is hereby deleted in its entirety and replaced by the following:

                              (k) Composition. Each Party shall appoint two
(2) of its senior employees to serve on the
JSC, one of which shall be a senior representative of its finance department (or equivalent). As
of the Effective Date of the Amendment, Bayer’s JSC representatives are [***] and [***], and
Nektar’s JSC representatives are [***] and [***]. The current JSC chairperson is [***]. Bayer
shall have the right to appoint the chairperson of the JSC during the term of this Agreement. In
addition to its two (2) appointed JSC members, (a) each Party shall designate an alliance manager
(or equivalent) to attend and participate in meetings of the JSC, and shall promptly notify the
other Party of the name and title of its alliance manager representative; and (b) when commercial
issues are included on the agenda for any JSC meeting, each Party shall have the right to designate
a representative of its marketing department (or equivalent) to attend and participate in such JSC
meeting. If either Party intends to have discussions at any JSC meeting requiring additional
subject matter experts from either Party to attend such JSC meeting, then it shall notify the other
Party in writing reasonably in advance of the meeting of the name and title of each such attendee.
Each Party may replace its JSC representatives and alliance manager designee by written notice to
the other Party.

	 	10.	 	Section 8.3 is hereby deleted in its entirety and replaced by the following:

“8.3 Milestone Payments. Bayer shall make the following non-refundable, non-creditable
Milestone Payments (the “Milestone Payments”) to Nektar, with respect to the Product, within [***]
after achievement of the relevant milestone for the Product. The milestones in this Section 8.3
are cumulative, such that under no circumstances is any single Milestone Payment to be deemed in
lieu of, or to be substituted for, another Milestone Payment. For clarity, each milestone in this
Section 8.3 is payable by Bayer to Nektar only once with respect to the achievement of any
milestone under this Agreement.

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	Milestone Event	 	Payment
	 	 	(millions of Dollars)
	(i) Effective Date (reimbursement by
Bayer [***] Aerogen [***] (Nektar
acknowledges that milestone (i) was
previously paid by Bayer, and that
Bayer’s obligations with respect to
milestone (i) have been fulfilled)

	 	$	50	 
	 
	 	 	 	 
	(ii) [***] (Nektar acknowledges that
milestone (ii) was previously paid
by Bayer, and that Bayer’s
obligations with respect to
milestone (ii) have been fulfilled.)

	 	$	10	* 
	 
	 	 	 	 
	(iii) [***]

	 	 	[***]	 
	 
	 	 	 	 
	(iv) [***]

	 	 	[***]	 
	 
	 	 	 	 
	(v) [***]

	 	 	[***]	 
	 
	 	 	 	 
	(vi) [***]

	 	 	[***]	 
	 
	 	 	 	 
	(vii) [***]

	 	 	[***]	 

*This milestone payment shall be used by Nektar to reimburse Bayer’s Development Costs of
conducting any Phase III Clinical Trial in the Territory. Bayer shall invoice Nektar for this $10
million upon the later to occur of the following: (a) dosing of the first patient in the first
Phase III Clinical Trial conducted by or for Bayer; and (b) payment of milestone (iii) to Nektar by
Bayer. Bayer shall provide Nektar with documentation reasonably acceptable to Nektar evidencing
dosing of such first Phase III patient, and Nektar shall have the right to reasonably verify such
dosing. Nektar shall pay such invoiced amount within [***] after its receipt of an invoice from Bayer.

	 	11.	 	Section 8.4(a) is hereby deleted and in its entirety is replaced by the following:

	a.	 	Royalties in the Royalty Territory.

(i) In addition to any amounts due to Nektar under Sections 8.1, 8.2 and 8.3, and subject to the
other provisions of this Section 8.4 and the terms and conditions of this Agreement, in
consideration for the grant of the license under the Nektar Patent Rights and Nektar Know-How to
Bayer under Section 2.1(a), Bayer shall pay Nektar non-refundable and non-creditable incremental
royalties in the Royalty Territory based on the aggregate annual Net Sales of all Product sold in
all countries in the Royalty Territory in a calendar quarter to Third Parties by or on behalf of
Bayer, its Affiliates or Sublicensees, in which, and for so long as, the Product or the
manufacture, use, sale, offer for sale, or importation of the Product would infringe a Valid Claim
or constitute a misappropriation of the Nektar Know-How in such country in the absence of such
license, according to the following royalty rates (for the purposes hereof, “annual” means any
complete calendar year period beginning on January 1 and ending on December 31):

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17 C.F.R. Sections 200.80(b)(4) and 240.24b-2

	 	 	 	 	 
	Annual Royalty Rate	 	Annual Net Sales in the Royalty Territory
	 	 	(millions of Dollars)
	14% of the amount between
	 	 	$[***]	 
	[***] of the amount between
	 	 	>$[***]	 
	[***] of the amount between
	 	 	>$[***]	 
	[***] of the amount between
	 	 	>$[***]	 
	30% of the amount
	 	 	>$[***]	 

Exhibit 8.4(a) contains an example of the royalty calculation methodology applicable to Net Sales
of the Product under Section 8.4(a). Exhibit 8.4(a) in the form originally attached to the
Agreement as of the Effective Date is hereby deleted and in its entirety replaced by Exhibit 8.4(a)
in the form attached to this Amendment.

	 	12.	 	Section 8.4(d) is hereby deleted and in its entirety replaced by the following:

          (d) Additional Royalty Payments. The following one-time additional royalty payments will also
be paid by Bayer to Nektar within [***] after the delivery of the report under Section 8.5
demonstrating the first occurrence of each of the following events:

	 	 	 	 	 
	Event	 	Payment	 
	 	 	(millions of Dollars)	 
	First time that Net Sales in the
	 	 	$  [***]	 
	Royalty Territory in a calendar year
[***]
	 	 	 	 
	First time that Net Sales in the
	 	 	$  [***]	 
	Royalty Territory in a calendar year
[***]
	 	 	 	 
	First time that Net Sales in the
	 	 	$  [***]	 
	Royalty Territory in a calendar year
[***]
	 	 	 	 
	First time that Net Sales in the
	 	 	$  [***]	 
	Royalty Territory in a calendar year
[***]
	 	 	 	 
	First time that Net Sales in the
	 	 	$  [***]	 
	Royalty Territory in a calendar year
[***]
	 	 	 	 

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All of the additional royalty payments made under this Section 8.4(d) are non-refundable and
non-creditable, and each such payment is payable only once.

	 	13.	 	Article 8 of the Agreement is hereby amended by adding the following new Section 8.11
at the end of the present Article 8:
	 
	 	8.11	 	[***].
	 
	 	14.	 	Section 9.1(b) is hereby deleted and entirely replaced by the following:

                              (l) Commercial Manufacturing and Supply. In
connection with any Manufacturing and Supply
Agreement entered into pursuant to this Agreement, Bayer shall provide Formulated Amikacin for
commercial supply of the Product and shall be responsible for final packaging of Formulated
Amikacin with the Device. Nektar shall supply the Device for use in the Manufacture of commercial
supplies of the Product to Bayer, at a price (a) for the United States equal to Nektar’s Fully
Burdened Manufacturing Cost without any mark-up; and (b) for the Royalty Territory equal to
Nektar’s Fully Burdened Manufacturing Cost therefor plus the mark-up (the “Mark-Up”) set forth in
Table 9.1(b) below; provided, however, that, in the United States as well as in the Royalty
Territory, the price shall not exceed [***] (the “Cap”) for the remaining time in the calendar year
in which the Commercial Launch took place, and in each calendar year thereafter (each a “Calendar
Year”). Subject to a potential adjustment pursuant to Section 9.1(b)(e) below, the Cap for the
respective Calendar Year is either (i) [***] or (ii) [***], whichever is lower. (For clarity, the
Parties recognize and intend that the first Calendar Year may be of short duration, such as only a
few days or months, depending on the date of the Commercial Launch.)

In the Manufacturing and Supply Agreement, the Parties shall include provisions addressing all of
the following:

(a) the Device cost in the United States shall be equal to (i) Nektar’s Fully Burdened
Manufacturing Costs or (ii) the applicable [***] for the respective Calendar Year, whichever is
lower;

(b) in the Royalty Territory, if the Fully Burdened Manufacturing Costs are lower than the High
COGs set out in the table attached hereto as Exhibit 9.1(b), the Mark-up to be payable by Bayer to
Nektar in addition to the Fully Burdened Manufacturing Costs shall be [***] dependent on [***] (the
“Device Mark-Up Thresholds”). If the Fully Burdened Manufacturing Costs are higher than [***], the
Mark-up to be payable by Bayer to Nektar in the Royalty Territory in addition to the Fully Burdened
Manufacturing Costs shall be limited [***]. If the Fully Burdened Manufacturing Costs exceed [***]
for the respective Calendar Year, [***] applies. For the avoidance of doubt, it is set forth
herein that in no event shall the price per Device including Fully Burdened Manufacturing Costs and
Mark-up exceed the applicable [***] for the respective Calendar Year.

(c) commencing with the first Calendar Year and any Calendar Year thereafter, the procedure for
applying [***] applicable to Bayer’s cost for each Device purchased by Bayer during such

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Calendar Year, for either the United States or the Royalty Territory, shall be as follows: if in
any Calendar Year Nektar’s actual Fully Burdened Manufacturing Costs plus Mark-Up (as applicable)
[***], then Nektar shall invoice Bayer for the Devices sold to Bayer during such Calendar Year
based on Nektar’s Fully Burdened Manufacturing Cost plus Mark-Up (as applicable) without regard for
[***], and Bayer shall pay Nektar’s invoices and such payments shall be non-refundable, provided
that for any portion of Nektar’s invoiced price that [***] for the applicable Calendar Year, Bayer
shall be entitled to [***];

(d) providing for a [***] to the unit price for each Device to be charged by Nektar based on
Bayer’s binding forecast for [***];

(e) providing for an [***] based on the change in sum of [***] and any other significant
uncontrollable costs to Nektar in supplying the Device, [***]; and

(f) application of [***] in a manner that ensures Nektar will be able to recognize revenues from
the sale of Devices to Bayer during Nektar’s fiscal year.

Further details necessary for the efficient supply of the Devices by Nektar and purchase by Bayer
also will be included in the Manufacturing and Supply Agreement.

Table 9.1(b)*

	 	 	 
	Nektar’s Fully-Burdened Manufacturing	 	Mark-Up Payable to Nektar if COGS
	Cost Per Device	 	are lower than High COGS
	(determined on a Calendar Year basis)	 	(subject to the Cap)
	Greater than or equal to $[***]

	 	[***]
	Greater than or equal to $[***]
but less than $[***]

	 	[***] mark-up on total COGS
	Greater than or equal to $[***]
but less than $[***]

	 	[***] mark up on total COGS
	Less than $[***]

	 	[***] mark-up on total COGS

* As used in Table 9.1(b), the following terms have the following meanings: (i) “COGS” means
Nektar’s Fully Burdened Manufacturing Cost for the Device; (ii) “High COGS” means that for the
applicable Calendar Year COGs equals or exceeds Nektar’s high COGS estimate in the Forecast; and
(iii) “Forecast” means that certain Nektar forecast attached hereto as Exhibit 9.1(b).

	 	15.	 	Article 14 is hereby amended by adding the following Section 14.5 at the end of the
existing Article 14:

	 	14.5	 	Mutual Releases and Covenants.

                              (a) With respect to the obligations, duties and
responsibilities imposed, directly or
indirectly, by this Agreement on Bayer, Nektar, on behalf of itself and its

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Affiliates, hereby fully, finally and forever releases, acquits, and discharges any and all
claims, actions, causes of action, suits, liabilities, damages, losses, and demands whatsoever in
law and equity, whether presently known or unknown, accrued or not accrued, foreseen or unforeseen,
matured or not matured, which Nektar and/or its Affiliates ever had, now have or hereafter can,
shall or may have against Bayer and its Affiliates for, upon, or by reason of any matter, cause or
thing whatsoever related to the Agreement prior to the Effective Date of the Amendment. The
following are expressly excluded from the foregoing release by Nektar and its Affiliates: any
Third Party claim for Damages for which Bayer is required to indemnify Nektar and/or its Affiliates
pursuant to Section 14.1 of the Agreement.

                              (b) Nektar, on behalf of itself and its Affiliates,
hereby irrevocably and unconditionally
covenants and agrees that it will refrain from commencing any action, suit, claim, counterclaim or
proceedings, or prosecuting or participating (other than as a defendant) in any pending or other
action, suit, claim, counterclaim or proceeding, at law, in equity or otherwise, against or adverse
to Bayer or its Affiliates on account of any matter released under Section 14.5(a) of this
Agreement. In addition to any other liability that may accrue in the event of any breach of this
covenant, Nektar shall be liable to pay, and hereby agrees to indemnify and hold harmless Bayer and
its Affiliates for, all reasonable attorneys’ fees, costs and disbursements and all other losses
incurred by Bayer and its Affiliates in defense or settlement of any such action, suit, claim,
counterclaim or other proceeding.

                              (c) With respect to the obligations, duties and
responsibilities imposed, directly or
indirectly, by this Agreement on Nektar, Bayer, on behalf of itself and its Affiliates, hereby
fully, finally and forever releases, acquits and discharges any and all claims, actions, causes of
action, suits, liabilities, damages, losses, and demands whatsoever in law and equity, whether
presently known or unknown, accrued or not accrued, foreseen or unforeseen, matured or not matured,
which Bayer and its Affiliates ever had, now have or hereafter can, shall or may have against
Nektar and/or its Affiliates, for, upon, or by reason of any matter, cause or thing whatsoever
related to the Agreement prior to the Effective Date of the Amendment. The following are expressly
excluded from the foregoing release by Bayer and its Affiliates: (a) any Third Party claim for
Damages for which Nektar is required to indemnify Bayer and/or its Affiliates pursuant to Section
14.2 of the Agreement; and (b) the indemnity of Bayer by Nektar set forth in Section 2.5.2 of the
Agreement as amended through an addition set forth in Section 8 of this Amendment.

                              (d) Bayer, on behalf of itself and its Affiliates,
hereby irrevocably and unconditionally
covenants and agrees that it will refrain from commencing any action, suit, claim, counterclaim or
proceedings, or prosecuting or participating (other than as a defendant) in any pending or other
action, suit, claim, counterclaim or proceeding, at law, in equity or otherwise, against or adverse
to Nektar and its Affiliates on account of any matter released under Section 14.5(c) of this
Agreement. In addition to any other liability that may accrue in the event of any breach of this
covenant, Bayer shall be liable to pay, and hereby agrees to indemnify and hold harmless Nektar and
its Affiliates for, all reasonable attorneys’ fees, costs and disbursements and all other losses
incurred by Nektar and its Affiliates in defense or settlement of any such action, suit, claim,
counterclaim or other proceeding.

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	 	16.	 	Section 20.5 is hereby deleted and entirely replaced by the following:

Notices. All notices and other communications hereunder shall be in writing and shall be deemed
given if delivered personally or by facsimile transmission (receipt verified), telexed, mailed by
registered or certified mail (return receipt requested), postage prepaid, or sent by express
courier service, to the Parties at the following addresses (or at such other address for a Party as
shall be specified by like notice; provided that notices of a change of address shall be effective
only upon receipt thereof):

	 	 	 
	If to Bayer, addressed to:

	 	Bayer Healthcare LLC

555 White Plains Road

Tarrytown, New York 01591

Attn: [***]

Facsimile: [***]
	 
	 	 
	 

	 	With copy to:
	 
	 	 
	 

	 	Bayer Schering Pharma AG

Muellerstrasse 178

D-Berlin, Germany

Attn: [***]

Facsimile: [***]
	 
	 	 
	If to Nektar, addressed to:

	 	Nektar Therapeutics
	 

	 	455 Mission Bay Boulevard South
	 

	 	San Francisco, CA U.S.A. 94158-2117
	 

	 	Attention: Chief Executive Officer
	 
	 	 
	 

	 	With copy to:
	 
	 	 
	 

	 	Nektar Therapeutics
	 

	 	455 Mission Bay Boulevard South
	 

	 	San Francisco, CA U.S.A. 94158-2117
	 

	 	Attention: Sr. Vice President & General
	 

	 	Counsel

	 	17.	 	Miscellaneous

	 	a.	 	Full Force and Effect. Except as expressly amended by this Amendment,
the Agreement shall remain unchanged and continue in full force and effect as
provided therein.

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	 	b.	 	Entire Agreement of the Parties. This Amendment and the Agreement
constitute the complete final and exclusive understanding and agreement of the
Parties with respect to the subject matter of the Agreement, and supersede any
and all prior or contemporaneous negotiations, correspondence, understandings
and agreements, whether oral or written, between the Parties respecting the
subject matter of the Agreement.
	 
	 	c.	 	Counterparts. This Amendment may be executed in multiple counterparts,
each of which shall be deemed an original, but all of which together shall
constitute one and the same instrument. One or more counterparts of this
Amendment may be executed and/or exchanged by facsimile or other electronic
means (such as in pdf format), and such execution and/or exchange shall be
legally binding for all purposes.

[Signature Page Follows]

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[Signature Page to Amendment No. 1]

          IN WITNESS WHEREOF, the Parties hereto have executed this Amendment in duplicate originals by
their authorized officers as of the Effective Date of the Amendment.

ACCEPTED AND AGREED,

	 	 	 	 	 
	 	BAYER HEALTHCARE LLC

 	 
	 	By:  	[***]
 	 
	 	 	 	 
	 	Name:  	[***]
 	 
	 

	 	 	 	 	 
	 	NEKTAR THERAPEUTICS

 	 
	 	By:  	[***]
 	 
	 	 	 	 
	 	Name:  	[***]
 	 
	 

11exv10w31

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EXHIBIT 10.31

SUPPLY, DEDICATED SUITE AND MANUFACTURING GUARANTEE AGREEMENT

by and between

Nektar Therapeutics

and

Amgen Inc. and Amgen Manufacturing, Limited

dated October 29, 2010

 

 

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Table of Contents

	 	 	 	 	 	 	 	 	 

	ARTICLE 1 DEFINITIONS	 	 	2	 
	 	1.1	 	 	“Affiliate”
	 	 	2	 
	 	1.2	 	 	“Amgen-Approved Manufacturing Documents”
	 	 	2	 
	 	1.3	 	 	“Amgen Product”
	 	 	2	 
	 	1.4	 	 	“Applicable Laws”
	 	 	2	 
	 	1.5	 	 	“Audit Findings Resolution Plan”
	 	 	2	 
	 	1.6	 	 	“Batch”
	 	 	2	 
	 	1.7	 	 	“Batch Record”
	 	 	2	 
	 	1.8	 	 	“Certificate of Analysis”
	 	 	2	 
	 	1.9	 	 	“Change Notification”
	 	 	3	 
	 	1.10	 	 	“Change of Control”
	 	 	3	 
	 	1.11	 	 	“Confidential Information”
	 	 	3	 
	 	1.12	 	 	“Critical Equipment”
	 	 	4	 
	 	1.13	 	 	“Deliver”
	 	 	4	 
	 	1.14	 	 	“Delivery Date”
	 	 	4	 
	 	1.15	 	 	“Disposition”
	 	 	4	 
	 	1.16	 	 	“Facility”
	 	 	4	 
	 	1.17	 	 	“FDA”
	 	 	4	 
	 	1.18	 	 	“Fixed Fee Component”
	 	 	4	 
	 	1.19	 	 	“Force Majeure Event”
	 	 	4	 
	 	1.20	 	 	“Governmental Entity”
	 	 	4	 
	 	1.21	 	 	“Indenture”
	 	 	4	 
	 	1.22	 	 	“ICH Q7”
	 	 	4	 
	 	1.23	 	 	“License Agreement”
	 	 	5	 
	 	1.24	 	 	“Licensed Product”
	 	 	5	 
	 	1.25	 	 	“Manufacturing”
	 	 	5	 
	 	1.26	 	 	“Manufacturing Documents”
	 	 	5	 
	 	1.27	 	 	“Manufacturing Fees”
	 	 	5	 
	 	1.28	 	 	“Manufacturing Line”
	 	 	5	 
	 	1.29	 	 	“Manufacturing Suite”
	 	 	5	 
	 	1.30	 	 	"[***]”
	 	 	5	 
	 	1.31	 	 	“Party”
	 	 	5	 
	 	1.32	 	 	"[***]”
	 	 	5	 
	 	1.33	 	 	“Patent Right”
	 	 	5	 
	 	1.34	 	 	“Person”
	 	 	5	 
	 	1.35	 	 	“Product”
	 	 	6	 
	 	1.36	 	 	“Proposed Change Costs”
	 	 	6	 
	 	1.37	 	 	“Proposed Improvement”
	 	 	6	 
	 	1.38	 	 	“Quality Agreement”
	 	 	6	 

 

 

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	 	1.39	 	 	“Raw Material”
	 	 	6	 
	 	1.40	 	 	“Raw Materials Direct Costs”
	 	 	6	 
	 	1.41	 	 	“Raw Materials Minimum Inventory”
	 	 	6	 
	 	1.42	 	 	“Raw Materials Specifications”
	 	 	6	 
	 	1.43	 	 	“Reject”
	 	 	6	 
	 	1.44	 	 	“Release”
	 	 	6	 
	 	1.45	 	 	“[***]”
	 	 	7	 
	 	1.46	 	 	“[***]”
	 	 	7	 
	 	1.47	 	 	“Specifications”
	 	 	7	 
	 	1.48	 	 	“Standard of Care”
	 	 	7	 
	 	1.49	 	 	“Standard Operating Procedures”
	 	 	7	 
	 	1.50	 	 	“Supply Agreement”
	 	 	7	 
	 	1.51	 	 	“Territory”
	 	 	7	 
	 	1.52	 	 	“Third Party”
	 	 	7	 
	 	1.53	 	 	“Trigger Event”
	 	 	7	 
	 	1.54	 	 	“[***]”
	 	 	8	 
	ARTICLE 2 REPRESENTATIONS, WARRANTIES AND COVENANTS	 	 	8	 
	 	2.1	 	 	Representations, Warranties and Covenants of Nektar
	 	 	8	 
	 	2.2	 	 	Representations and Warranties of Amgen
	 	 	11	 
	ARTICLE 3 EXCLUSIVE USE MANUFACTURING SUITE AND MANUFACTURING GUARANTEE	 	 	11	 
	 	3.1	 	 	Exclusive Suite/Guarantee Grants
	 	 	11	 
	 	3.2	 	 	Additional Guarantee Payment and Reduced Guarantee Payment
	 	 	12	 
	 	3.3	 	 	Manufacturing Fees and [***]
	 	 	14	 
	ARTICLE 4 MANUFACTURE AND DELIVERY	 	 	14	 
	 	4.1	 	 	Manufacture
	 	 	14	 
	 	4.2	 	 	Supply Obligation
	 	 	16	 
	 	4.3	 	 	Annual Forecasts
	 	 	16	 
	 	4.4	 	 	[***]
	 	 	17	 
	 	4.5	 	 	Orders and Delivery
	 	 	17	 
	 	4.6	 	 	Ongoing Readiness for Manufacturing
	 	 	19	 
	 	4.7	 	 	Demonstration and Reduced Additional Guarantee Payment
	 	 	19	 
	 	4.8	 	 	Continuity of Manufacturing
	 	 	20	 
	 	4.9	 	 	Key Personnel
	 	 	21	 
	 	4.10	 	 	Notice of Trigger Event
	 	 	21	 
	 	4.11	 	 	Performance of Manufacturing and Facility Operations
	 	 	21	 
	ARTICLE 5 MANUFACTURING FEES	 	 	23	 
	 	5.1	 	 	Manufacturing Fees
	 	 	23	 
	 	5.2	 	 	[***]
	 	 	24	 
	 	5.3	 	 	Exclusive Compensation
	 	 	24	 

 

 

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	ARTICLE 6 MATERIALS, WORK IN PROGRESS AND PRODUCT	 	 	24	 
	 	6.1	 	 	Raw Materials
	 	 	24	 
	 	6.2	 	 	Raw Material Procurement
	 	 	24	 
	 	6.3	 	 	Required
Inventory
	 	 	24	 
	 	6.4	 	 	Segregation of Amgen Materials
	 	 	25	 
	ARTICLE 7 MANUFACTURING LINE	 	 	26	 
	 	7.1	 	 	Grant of Security Interest in the Manufacturing Line
	 	 	26	 
	 	7.2	 	 	Easement and Option to Purchase Manufacturing Line
	 	 	26	 
	 	7.3	 	 	Operation of Manufacturing Line Purchased by Amgen
	 	 	26	 
	 	7.4	 	 	Amgen Inc.’s Election to Operate the Manufacturing Line
	 	 	27	 
	ARTICLE 8 QUALITY	 	 	28	 
	 	8.1	 	 	Quality Agreement
	 	 	28	 
	 	8.2	 	 	Rejection
	 	 	28	 
	ARTICLE 9 INVOICING AND PAYMENT	 	 	29	 
	 	9.1	 	 	Invoicing
	 	 	29	 
	 	9.2	 	 	Payment
	 	 	30	 
	ARTICLE 10 CONFIDENTIALITY	 	 	30	 
	 	10.1	 	 	Confidentiality
	 	 	30	 
	 	10.2	 	 	Authorized Disclosure
	 	 	30	 
	ARTICLE 11 TERMINATION AND TERM	 	 	31	 
	 	11.1	 	 	Termination for Convenience
	 	 	31	 
	 	11.2	 	 	Nektar Default
	 	 	31	 
	 	11.3	 	 	Amgen Default
	 	 	32	 
	 	11.4	 	 	Insolvency
	 	 	32	 
	 	11.5	 	 	Term
	 	 	32	 
	ARTICLE 12 MISCELLANEOUS PROVISIONS	 	 	33	 
	 	12.1	 	 	Debarred Persons
	 	 	33	 
	 	12.2	 	 	Right to Set-off
	 	 	33	 
	 	12.3	 	 	No Exclusivity or Minimum
	 	 	33	 
	 	12.4	 	 	Precedence
	 	 	33	 
	 	12.5	 	 	Recordkeeping and Audit
	 	 	34	 
	 	12.6	 	 	Assignment
	 	 	35	 
	 	12.7	 	 	Further Actions
	 	 	35	 
	 	12.8	 	 	No Trademark Rights
	 	 	36	 
	 	12.9	 	 	Disclosure of Supply Agreement and Public Announcements
	 	 	36	 
	 	12.10	 	 	Notices
	 	 	36	 
	 	12.11	 	 	Amendment
	 	 	37	 
	 	12.12	 	 	Waiver
	 	 	37	 
	 	12.13	 	 	Counterparts
	 	 	37	 
	 	12.14	 	 	Descriptive Headings
	 	 	37	 

 

 

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	 	12.15	 	 	Governing Law
	 	 	37	 
	 	12.16	 	 	Severability
	 	 	37	 
	 	12.17	 	 	Entire Agreement of the Parties
	 	 	38	 
	 	12.18	 	 	Dispute Resolution
	 	 	38	 
	 	12.19	 	 	Remedies Cumulative
	 	 	39	 
	 	12.20	 	 	Independent Contractors
	 	 	39	 
	 	12.21	 	 	Force Majeure
	 	 	39	 
	 	12.22	 	 	Specific Performance
	 	 	39	 
	 	12.23	 	 	Equal Opportunity/Affirmative Action
	 	 	40	 
	 	12.24	 	 	Consolidation
	 	 	40	 

 

 

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SUPPLY, DEDICATED SUITE AND MANUFACTURING GUARANTEE AGREEMENT

     THIS SUPPLY, DEDICATED SUITE AND MANUFACTURING GUARANTEE AGREEMENT is entered into as of
October 29, 2010 (“Effective Date") by and between on the one hand Nektar Therapeutics (“Nektar”),
a corporation organized under the laws of Delaware, with its principal place of business located at
201 Industrial Road, San Carlos, California 94070, and on the other hand Amgen Inc., a corporation
organized under the laws of Delaware, with its principal place of business located at One Amgen
Center Drive, Thousand Oaks, California 91320, and Amgen Manufacturing, Limited, a corporation
organized under the laws of Bermuda, with its principal place of business located at State Road 31,
Kilometer 24.6, Juncos, Puerto Rico 00777-4060 (collectively Amgen Inc. and Amgen Manufacturing,
Limited, “Amgen”)

WITNESSETH:

     WHEREAS, Nektar and Amgen Inc. are parties to that certain agreement titled Supply and License
Agreement (dated July 25, 1995; Amgen reference 951863) as amended by Amendment No. 1 (effective as
of July 31, 1996), Amendment No. 2 (effective as of December 20, 1999), and Amendment No. 3
(entered into as of August 28, 2003) (collectively, the “Original Supply and License Agreement”)
and, pursuant to the Original Supply and License Agreement, Nektar and its affiliates licensed
certain technology relating to the manufacture of [***] polymers to Amgen Inc. and its affiliates
so that Amgen Inc. or its affiliates may manufacture themselves or have manufactured by third
parties certain compounds, and Nektar manufactured for and supplied to Amgen Inc. and its
affiliates certain products;

     WHEREAS, concurrent with entering into this Supply Agreement, Amgen Inc. and Nektar have
amended and restated the Original Supply and License Agreement (through the License Agreement
(defined below)) so as to provide for separate agreements addressing, among other things, the
license grants through the License Agreement, on the one hand, and the supply obligations through
this Supply Agreement, on the other;

     WHEREAS, concurrent with entering into this Supply Agreement, Amgen has submitted to Nektar a
letter setting forth its approval of certain Manufacturing Documents (defined below), which
Manufacturing Documents constitute Amgen-Approved Manufacturing Documents (the “First
Amgen-Approved Manufacturing Documents”); and

1

 

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     WHEREAS, Amgen desires to obtain, and Nektar is willing to guarantee to Amgen in return for
certain payments, long term, timely supply of certain [***] polymers that meet Amgen’s quality
standards, exclusive use of certain portions of Nektar’s facility
for the manufacture of such polymers for Amgen and its affiliates and their respective licensees or
assigns, and continuity of the supply of such polymers all as set forth below.

AGREEMENT:

     NOW THEREFORE, in consideration of the foregoing and the covenants and promises contained in
this Supply Agreement, the Parties agree as follows:

ARTICLE 1

DEFINITIONS

1.1 “Affiliate” shall have the meaning set forth in the Quality Agreement (defined below).

1.2 “Amgen-Approved Manufacturing Documents”
shall mean the then-current version of each of the Manufacturing Documents that has been
approved of in writing by Amgen.

1.3 “Amgen Product”
shall mean human therapeutics, diagnostics or prophylactics manufactured by or on behalf of
Amgen Inc. or one or more of its Affiliates which utilize Licensed Product in their manufacture.

1.4 “Applicable Laws” shall mean all national, multinational, federal, provincial, state and local laws,
statutes, rules, ordinances, and regulations that are applicable to each Party’s obligations or
performance pursuant to this Agreement including without limitation the applicable Regulatory
Agency (as defined in the Quality Agreement) guidelines. “Applicable Law", in the singular, shall
refer to one element of the Applicable Laws.

1.5 “Audit Findings Resolution Plan”
shall mean the actions to be taken by Nektar described on Exhibit 6 in response to the
Amgen Audit Report of Nektar’s Huntsville, Alabama facility dated April 30, 2010 and amended May
24, 2010.

1.6 “Batch”
shall have the meaning set forth in the Quality Agreement.

1.7 “Batch Record”
shall have the meaning set forth in the Quality Agreement.

1.8 “Certificate of Analysis”
shall have the meaning set forth in the Quality Agreement.

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1.9 “Change Notification”
shall mean a notice from Amgen to Nektar indicating (i) one or more modifications that Amgen
directs, in its reasonable discretion, to be made to the Amgen-Approved Manufacturing Documents,
Specifications, analytical testing validation requirements, or list of Critical Raw Materials (as
defined in the Quality Agreement) and (ii) to the extent applicable, the duration of any suspension
of Manufacturing of Product subject to one or more Orders.

1.10 “Change of Control”
shall mean, with respect to a Party, any of the following transactions: (i) the sale or other
transfer to, or acquisition by, any Person of securities possessing more than fifty percent (50%)
of the total combined voting power of such Party’s outstanding securities; (ii) the sale or other
transfer of all or substantially all of the assets of such Party in one or more related
transactions to any Person who on the Effective Date hereof is not an majority-owned affiliate of
such Party, whether by sale, exchange, merger, consolidation or reorganization; (iii) a merger or
consolidation (or series of related transactions culminating in a merger or consolidation) (a) in
which such Party is not the surviving entity, except for a transaction (x) the sole purpose of
which is to change its state of domicile or (y) in which the Person(s) holding such Party’s
outstanding securities prior to the consummation of the transaction possess more than fifty percent
(50%) of the total combined voting power of the voting securities in the surviving entity, or (b)
in which such Party is the surviving entity but in which securities possessing more than fifty
percent (50%) of the total combined voting power of its outstanding securities are transferred to a
Person or Persons different from those who held such securities immediately prior to such event; or
(iv) the voluntary or involuntary dissolution or liquidation of such Party.

1.11 “Confidential Information”
shall mean all confidential and proprietary information including without limitation all
information, procedures, developments, results, data, know-how, protocols, conclusions,
technologies, and inventions, disclosed hereunder by or on behalf of a Party to the other Party
related to the subject matter of this Supply Agreement, whether disclosed in written (including
electronic), visual or oral form; provided however, that Confidential Information shall not include
information that (a) is or becomes available to the public, through no breach of this Supply
Agreement by the Party receiving such information
hereunder (the “Receiving Party"), (b) is obtained on a non-confidential basis from a Person other
than the Party disclosing such information hereunder (the “Disclosing Party"), provided that, such
source is not known by the Receiving Party to be bound by an obligation (contractual, legal,
fiduciary, or otherwise) of confidentiality to the Disclosing Party with respect to such
information, (c) was in the Receiving Party’s possession prior to receipt from the Disclosing
Party, as evidenced by the Receiving Party’s written records, or (d) is independently discovered or
developed by the Receiving Party without reference to or the use of Confidential

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Information of the
Disclosing Party, as evidenced by the Receiving Party’s written records.

1.12 “Critical Equipment”
shall mean the equipment listed in Exhibit 8 attached hereto.

1.13 “Deliver”
(or Delivery or other variants thereof) shall mean, with respect to a Batch that is Released
(defined below) by Nektar, the shipment of such Batch to Amgen Manufacturing, Limited or its
designee pursuant to Section 4.5(d), below.

1.14 “Delivery Date”
shall mean, for each Batch for which Nektar has completed Manufacturing and release testing
and that is Released by Nektar, the date on which such Batch is Delivered.

1.15 “Disposition”
shall have the meaning set forth in the Quality Agreement.

1.16 “Facility”
shall have the meaning set forth in the Quality Agreement.

1.17 “FDA”
shall have the meaning set forth in the Quality Agreement.

1.18 “Fixed Fee Component”
shall mean the amount of [***] of Product as adjusted pursuant to Section 5.1.

1.19 “Force Majeure Event”
shall mean an event or occurrence that prevents the performance by a Party of any of its
obligations hereunder if such event or occurrence (i) occurs by reason of any act of God, flood,
fire, explosion, earthquake, strike, lockout, labor dispute, casualty, war, revolution,
civil commotion, acts of public enemies, blockage, or embargo, (ii) occurs without such Party’s
fault, (iii) could not have been prevented by reasonable precautions or actions taken by such
Party, including without limitation the use of alternate sources, and (iv) is reasonably
unforeseeable and beyond the reasonable control of such Party.

1.20 “Governmental Entity”
shall mean any court, tribunal, arbitrator, authority, agency, commission, department,
ministry, official or other instrumentality of the United States or other country, or any
supra-national organization, or any foreign or domestic, state, county, city or other political
subdivision, including any Regulatory Agency (as defined in the Quality Agreement).

1.21 “Indenture”
shall mean that certain Indenture, dated as of September 28, 2005, by and between Nektar and
J.P. Morgan Trust Company, National Association.

1.22 “ICH Q7”
shall have the meaning set forth in the Quality Agreement.

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1.23 “License Agreement”
shall mean that certain agreement titled Amended and Restated License Agreement entered into
as of October 29, 2010 by and between Nektar and Amgen Inc., as such agreement may be amended from
time to time pursuant to its terms.

1.24 “Licensed Product”
shall have the meaning set forth in the License Agreement.

1.25 “Manufacturing”
(or Manufacture or other variants thereof) shall have the meaning set forth in the Quality
Agreement.

1.26 “Manufacturing Documents”
shall mean the Bill of Materials (as defined in the Quality Agreement), Raw Materials
Specifications, Standard Operating Procedures and Master Batch Record (as defined in the Quality
Agreement).

1.27 “Manufacturing Fees”
shall mean, for each kilogram of Product that is subject to an Order (defined in Section
4.5(a)), the dollar amount equal to the following: [***].

1.28 “Manufacturing Line”
shall mean the equipment used by Nektar to Manufacture the Product at the Facility and, other
than consumables, all other equipment, tooling, and other items comprising or necessary for the
operation of such equipment for Manufacturing, including without limitation the items listed in
Exhibit 2, attached hereto.

1.29 “Manufacturing Suite”
shall mean, collectively, the following portions of the [***] located at 1112 Church Street,
Huntsville, Alabama (the location of such portions are depicted generally in Exhibit 3,
attached hereto): (i) the space identified as [***]; and (ii) the space identified as [***].

1.30 “[***]”
shall mean [***].

1.31 “Party”
shall mean, on the one hand, Amgen Inc. and Amgen Manufacturing and, on the other hand,
Nektar, as the context requires, and “Parties” shall mean Amgen and Nektar.

1.32 “[***]”
shall mean [***].

1.33 “Patent Right”
shall mean patent applications, patents issuing thereon and any extensions or restorations by
existing or future extension or restoration mechanisms, including Supplementary Protection
Certificates or the equivalent thereof, renewals, continuations, continuations-in-part, divisions,
patents-of-addition, re-examinations, and/or reissues of any patent, in any country of the
Territory.

1.34 “Person”
shall have the meaning set forth in the Quality Agreement.

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1.35 “Product”
shall have the meaning set forth in the Quality Agreement.

1.36 “Proposed Change Costs”
shall mean the costs associated with [***] required or necessary for Manufacturing pursuant to
the Amgen-Approved Manufacturing Documents in effect prior to the date of the Change Notification.

1.37 “Proposed Improvement”
shall mean [***].

1.38 “Quality Agreement”
shall mean the agreement attached hereto as Exhibit 1 as may be amended from time to
time pursuant to Section 12.11, below.

1.39 “Raw Material”
shall have the meaning set forth in the Quality Agreement.

1.40 “Raw Materials Direct Costs”
shall mean, with respect to each kilogram of Product requested in an Order that Nektar
Manufactures, Releases and Delivers hereunder, [***].

1.41 “Raw Materials Minimum Inventory”
shall mean the quantity of each of the Raw Materials listed in Exhibit 7, attached
hereto, for each [***] of Product requested in an Order.

1.42 “Raw Materials Specifications”
shall have the meaning set forth in the Quality Agreement.

1.43 “Reject”
(or Rejected or other variants thereof) shall mean that, pursuant to Section 8.2,
Amgen has provided Nektar with a Rejection Notice and, thereafter, with respect to each such
Rejection Notice, any of the following occur: (i) the basis of the Rejection Notice is failure of
the Product to comply with one or more of the Specifications as determined by Nektar’s or Amgen’s
performance of the applicable test method set forth in the Specifications; (ii) within the
applicable time period set forth in Section 8.2, Nektar does not notify Amgen of Nektar’s
good faith disagreement with the basis for the Rejection Notice; (iii) pursuant to Section
8.2, Nektar timely notifies Amgen of Nektar’s good faith disagreement with the basis for the
Rejection Notice and the Parties agree that Amgen was entitled to reject the Product pursuant
to Section 8.2; or (iv) pursuant to Section 8.2, Nektar timely notifies Amgen of
Nektar’s good faith disagreement with the basis for the
Rejection Notice and the Parties refer the matter to a Rejection Evaluator (defined below), and the
Rejection Evaluator determines that Amgen was entitled, pursuant to Section 8.2, to reject
the Product.

1.44 “Release” (or Released or other variants thereof) shall mean, with respect to a Batch of Product, that
such Batch has been Manufactured by Nektar pursuant to the terms

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of this Supply Agreement
(including without limitation the Quality Agreement) and the Disposition by Nektar results in a
release of such Batch.

1.45 “[***]”
shall mean [***].

1.46 “[***]”
shall have the meaning set forth in the License Agreement.

1.47 “Specifications”
shall have the meaning set forth in the Quality Agreement.

1.48 “Standard of Care”
shall have the meaning set forth in the Quality Agreement.

1.49 “Standard Operating Procedures”
shall have the meaning set forth in the Quality Agreement.

1.50 “Supply Agreement”
shall mean this Supply, Dedicated Suite and Manufacturing Guarantee Agreement, together with
its exhibits, as such may be amended from time to time pursuant to Section 12.11, below.

1.51 “Territory”
shall mean worldwide.

1.52 “Third Party”
shall have the meaning set forth in the Quality Agreement.

1.53 “Trigger Event”
shall mean the occurrence of any one or more of the following: (i) any Change of Control of
Nektar without a signed written commitment as specified in, and submitted to Amgen pursuant to,
Section 12.6 hereof; (ii) Nektar’s becoming the subject of a voluntary or involuntary
bankruptcy proceeding under Title 11 of the United States Bankruptcy Code (the “Code”) or under any
other applicable U.S. Federal, state or foreign law (collectively with the Code, a “Debtor Relief
Law”), having a trustee or liquidator appointed over its assets (or Nektar’s consenting to such an
appointment), and/or having a receiver appointed to more than an insignificant portion of its
assets (or Nektar’s consenting to such an appointment) and/or winding up or liquidating, or having
wound up or liquidated, its business, or in each case the occurrence of an event similar to any of
the foregoing under Applicable Law, including any Debtor Relief Law; (iii) upon the occurrence of
Nektar ceasing to own exclusively or otherwise lawfully control (i.e., sole right to access (other
than customary easements), use (including exclusive use of the Manufacturing Suite and
Manufacturing Line), lease and transfer) the Facility; (iv) in any [***], upon the occurrence of
(A) Nektar failing, refusing or being unable to Manufacture, Release and Deliver on or before the
Delivery Schedule Date or within [***] after the applicable In-Progress Delivery Schedule Date more
than [***] of Product that are subject to one or more Orders or (B) more than [***] of Product that
are subject to one or more Orders are Rejected (each occurrence under the preceding subpart (iv)(A)
or (iv)(B) of this Section 1.53 a “Supply Default”); (v) Nektar’s failure (a) to pay any

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principal or interest, regardless of amount, due in respect of any indebtedness, when and as the
same shall become due and payable beyond any applicable grace or cure period, or (b) to observe or
perform any other term, covenant, condition or agreement contained in any agreement or instrument
evidencing or governing any such indebtedness if the effect of any failure referred to in this
clause (b) is to cause, or to permit the holder or holders of such indebtedness or a trustee or
other representative on its or their behalf (with or without the giving of notice, the lapse of
time or both) to cause, such indebtedness to become due prior to its stated maturity; provided
that it shall not constitute a Trigger Event unless the aggregate amount of all such
indebtedness referred to in clauses (a) and (b) exceeds [***] at such time); (vi) the occurrence
of an Event of Default under the Indenture (as “Event of Default” is defined in Section 4.1 of the
Indenture); (vii) Nektar’s failing, refusing or being unable to submit one or more of the [***] set
forth, and pursuant to the schedule, in Exhibit 6, and any such failure, refusal or
inability is not cured by Nektar within [***] after receipt of notice from Amgen; (viii) Nektar’s
failing, refusing or being unable to submit to Amgen documents specified in, or otherwise comply
with the requirements set forth in Section 4.8(a) and any such failure, refusal or
inability is not cured by Nektar within [***] after receipt of notice from Amgen; or (ix) Nektar’s
failing, refusing or being unable to submit to Amgen documents specified in, or otherwise comply
with the requirements set forth in, Section 4.8(b) or Section 4.11, and any such
failure, refusal or inability is not cured by Nektar within [***] after receipt of notice from
Amgen.

1.54 “[***]”
shall mean [***].

ARTICLE 2

REPRESENTATIONS, WARRANTIES AND COVENANTS

2.1 Representations, Warranties and Covenants of Nektar.
Nektar represents, warrants and covenants to Amgen as follows:

     (a) Corporate Power. Nektar is duly organized and validly existing under the laws of Delaware and has full corporate
power and authority to enter into this Supply Agreement and to carry out the provisions hereof.

     (b) Due Authorization. Nektar is duly authorized to execute and deliver this Supply Agreement and to perform its
obligations hereunder. The Person executing this Supply Agreement on Nektar’s behalf has been duly
authorized to do so on behalf of Nektar by all requisite corporate action.

     (c) Binding Agreement. This Supply Agreement is a legal and valid obligation binding upon Nektar and enforceable in
accordance with its terms. The execution, delivery and performance of this Supply Agreement by
Nektar does not conflict with any

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agreement, instrument or understanding, oral or written, to which
it or one or more of the Affiliates of Nektar is a party or by which it or one or more of the
Affiliates of Nektar may be bound, nor violate any material law or regulation of any court,
governmental body or administrative or other agency having jurisdiction over it or one or more of
its Affiliates.

(d) Solvency and Performance. Nektar is financially solvent, able to pay its debts as they mature, and possesses sufficient
working capital to complete its obligations hereunder and is aware of no circumstance that would be
reasonably likely to prevent it from or interfere with it performing under this Supply Agreement.

(e) Expertise and Equipped. Nektar possesses a high level of expertise in the business, administration, management,
supervision, and Manufacturing required or necessary to undertake and perform its obligations
hereunder and is fully and properly licensed, permitted, registered, qualified, experienced,
equipped (including without limitation equipped with labor, facilities,
machinery, equipment, and materials), resourced, organized, and financed, and has all intellectual
property rights necessary, to perform its obligations hereunder, as such obligations may change
from time-to-time pursuant to the terms of this Supply Agreement. Notwithstanding Section
4.1(c) and except with respect to [***] set forth in the Specification on Appendix G to the
Quality Agreement, with respect to the First Amgen-Approved Manufacturing Documents, on or before
the Effective Date, Nektar has done all that is necessary or required to comply with the First
Amgen-Approved Manufacturing Documents and there are no Proposed Improvements or Proposed Change
Costs associated with such First Amgen-Approved Manufacturing Documents.

(f) Facility. The Facility, including without limitation the Manufacturing Line and Manufacturing Suite, and
all equipment necessary for the Manufacture, Release and Delivery of Product, as such Manufacture,
Release and Delivery may change from time-to-time pursuant to the terms of this Supply Agreement,
is, and will remain, in good repair and fully and properly licensed, permitted, registered,
qualified and, to the extent validated (which, as of the Effective Date, only the analytical
methods are validated), validated for the Manufacture of Product.

(g) Use of Manufacturing Suite. The Manufacturing Suite is not being used for any purpose other than the Manufacture of Product.

(h) Grant of Rights. Neither Nektar nor any of its Affiliates has granted, nor will grant during the Term, any right
to any Third Party which would conflict with the rights granted to Amgen hereunder.

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     (i) Intellectual Property. Other than [***], Nektar has no knowledge of any intellectual
property rights that would conflict with (i) Nektar’s performance hereunder including performance
pursuant to changes made pursuant to Section 4.1 or (ii) Amgen’s exercise of any of the
rights granted hereunder.

     (j) [***].

     (k) No Debarment. Nektar is not currently using, and will not during the Term knowingly
use, in any capacity, in connection with the performance of Manufacturing or any other of its
obligations hereunder, the services of any Person debarred or subject to debarment under 21 U.S.C.
§ 335(a) or otherwise disqualified or suspended from performing the Manufacturing or otherwise
subject to any restrictions or sanctions by the FDA or any other Regulatory Agency with respect to
the performance of the Manufacturing (a “Debarred Person”).

     (l) Product Delivery. On the Delivery Date applicable to a Batch, or portion thereof, of
Product Delivered hereunder, such Product will comply with all terms of this Supply Agreement
including without limitation the requirements of the Quality Agreement, the Specifications, the
Certificate of Analysis, and the Master Batch Record.

     (m) Raw Materials Procurement. Neither Nektar nor any of its Affiliates has entered into
or made, or will enter into or make, any arrangement or agreement with any Third Party that
restricts or prohibits Amgen or one or more of its Affiliates from obtaining Raw Materials directly
or indirectly from Third Parties.

     (n) Compliance with Supply Agreement. All of the Product Delivered hereunder shall, upon
Delivery, have been Manufactured, Released and shipped in conformance with all material terms of
this Supply Agreement including without limitation the requirements of the Quality Agreement, the
Specifications, the Certificate of Analysis, the Master Batch Record, ICH Q7 and Applicable Laws
and Nektar will maintain suitable records to verify such compliance.

     (o) Title. Other than as set forth in Section 6.4, title to all Product sold
hereunder shall pass to Amgen free and clear of any security interest, lien, or other encumbrance.

     (p) Validity. Nektar is not aware of any action, suit or inquiry or investigation
instituted by any Third Party including without limitation any U.S. federal or state Governmental
Entity which questions or threatens the validity of this Supply Agreement or which could prevent or
delay Nektar’s performance under this Supply Agreement.

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2.2 Representations and Warranties of Amgen. Amgen Inc. and Amgen Manufacturing, Limited represent
and warrant to Nektar as follows:

     (a) Corporate Power. Amgen Inc. is duly organized and validly existing under the laws of
Delaware, and Amgen Manufacturing, Limited is duly organized and validly existing under the laws of
Bermuda. Each of Amgen Inc. and Amgen Manufacturing, Limited has full corporate power and
authority to enter into this Supply Agreement and carry out the provisions hereof.

     (b) Due Authorization. Amgen is duly authorized to execute and deliver this Supply
Agreement and to perform its obligations hereunder. The Persons executing this Supply Agreement on
Amgen’s behalf have been duly authorized to do so by all requisite corporate action.

     (c) Binding Agreement. This Supply Agreement is a legal and valid obligation binding upon
Amgen, and enforceable against Amgen in accordance with its terms. The execution, delivery and
performance of this Supply Agreement by Amgen does not conflict with any agreement, instrument or
understanding, oral or written, to which it is a party or by which it may be bound, nor violate any
material law or regulation of any court, governmental body or administrative or other agency having
jurisdiction over it.

     (d) Validity. Amgen is not aware of any action, suit or inquiry or investigation instituted
by any Third Party including without limitation any U.S. federal or state Governmental Entity which
questions or threatens the validity of this Supply Agreement.

ARTICLE 3

EXCLUSIVE USE MANUFACTURING SUITE AND MANUFACTURING

GUARANTEE

3.1 Exclusive Suite/Guarantee Grants. For the Term of this Supply Agreement, Nektar (i) grants the
Purchase Option, Easement (defined in Section 7.2) and license set forth in Section
7.2 hereof, (ii) reserves and makes available the Manufacturing Suite and Manufacturing Line
exclusively for the Manufacturing of Product hereunder for Amgen or its designee, (iii) guarantees
its Manufacture, Release and Delivery of the Previously Ordered Product pursuant to the terms of
the Original Supply and License Agreement, and (iv) guarantees its Manufacture, Release and
Delivery of Product in a quantity in the aggregate of up to [***] (this [***] does not include, and
is in addition to, the Previously Ordered Product and does not include Product that is
Manufactured, Released and Delivered by Nektar but Rejected) of the Product pursuant to the terms
of this Supply Agreement (collectively, the “Exclusive Suite/Guarantee Grants"). In consideration
for the Exclusive Suite/Guarantee Grants, Amgen shall pay to Nektar fifty million dollars

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     (US$50,000,000) (the “Exclusive Suite/Guarantee Payment"), payable by Amgen to Nektar within thirty
(30) days after the Effective Date.

3.2 Additional Guarantee Payment and Reduced Guarantee Payment.

     (a) Additional Guarantee Payment. In addition to any Manufacturing Fees and [***] (defined
in Section 5.2) that accrue and are payable by Amgen hereunder, if from time-to-time during
the Term Amgen submits one or more Orders for Product in excess of the Previously Ordered Product
plus [***] (an “Excess Order”), except as provided otherwise in this Section 3.2, Amgen
shall pay to Nektar the applicable additional payment set forth in Table 3.2 (each an
“Additional Guarantee Payment”) in consideration for Nektar guaranteeing, and Nektar does hereby so
guarantee, the Manufacture, Release and Delivery of Product, pursuant to the terms of this Supply
Agreement, of up to the upper limit quantity specified in Table 3.2 associated with such
Additional Guarantee Payment (each an “Upper Limit Quantity”). The quantity ranges in Table
3.2, below, commence with amounts ordered in addition to the [***] described in Section
3.1 (e.g., [***] represents the first kilogram ordered in excess of the [***] described in
Section 3.1 and in excess of the Previously Ordered Product, and so on).

Table 3.2

	 	 	 	 	 
	Guaranteed Quantity Range	 	 
	Lower Limit	 	 	 	Additional Guarantee
	Quantity	 	Upper Limit Quantity	 	Payment
	[***]
	 	[***]	 	[***]
	[***]
	 	[***]	 	[***]
	[***]
	 	[***]	 	[***]
	[***]
	 	[***]	 	[***]

Each Upper Limit Quantity in Table 3.2 does not include, and is in addition to, the
quantity of the Previously Ordered Product and does not include Product that is Manufactured,
Released and Delivered by Nektar but Rejected. Any [***] paid by Amgen pursuant to Section
5.2 hereof shall count toward, and reduce dollar-for-dollar, the amount of any Additional
Guarantee Payment that Amgen is obligated to pay pursuant to this Section 3.2(a) or any
Reduced Guarantee Payment that Amgen is obligated to pay pursuant to Section 3.2(b). To
the extent that Amgen is obligated to pay Nektar one or more Additional Guarantee Payments pursuant
to the terms of this Section 3.2(a), each such Additional Guarantee Payment shall be
payable by Amgen to

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Nektar
within [***] after the date that either (i) Nektar Delivers to Amgen or its designee the total
quantity of Product ordered under the Excess Order that is Manufactured, Released and Delivered by
Nektar pursuant to the terms of this Supply Agreement and that is not Rejected or (ii) Amgen or its
designated Third Party manufacturer manufactures Product (other than Product that is Previously
Ordered Product) in the Manufacturing Suite and the Disposition of such Product results in a
release of such Product by Amgen or its designated Third Party manufacturer (“Amgen Manufactured
Product”), and the aggregate of the quantity of such Amgen Manufactured Product and Product
(excluding the Previously Ordered Product) that was Manufactured, Released and Delivered by Nektar
and not Rejected exceeds a Lower Limit Quantity. Notwithstanding the foregoing, under certain
circumstances set forth in Section 3.2(b), the Additional Guarantee Payments may be subject
to a reduction to the Reduced Additional Guarantee Payment. For the avoidance of doubt, the
Reduced Additional Guarantee Payment is in lieu of, and not in addition to, the Additional
Guarantee Payments, Manufacturing Fees, and [***].

     (b) Reduced Additional Guarantee Payment. If (i) the basis for a Trigger Event is the
occurrence of a Supply Default, (ii) Nektar fails to timely perform a Trigger Event Readiness
Demonstration, or (iii) pursuant to Section 4.7(a), Nektar timely performs the Trigger
Event Readiness Demonstration and Amgen is not reasonably satisfied that Nektar is able and willing
to operate and maintain the Facility and Manufacturing Line, then, if Amgen pursuant to Section
7.4 elects to itself or through a Third Party manufacture, release and deliver Product at the
Facility, then, in lieu of the Additional Guarantee Payments set forth in Table 3.2, the
Manufacturing Fees and the [***], Amgen shall pay Nektar [***] of Amgen Manufactured Product (the
“Reduced Additional Guarantee Payment”). Additionally, if after a Trigger Event Nektar is entitled
hereunder to demonstrate and actually does so demonstrate to Amgen pursuant to Section
4.7(a) that Nektar is able and willing to operate and maintain the Facility and Manufacturing
Line as required or necessary to perform and meet its obligations hereunder and Amgen does not
elect to itself or through a Third Party manufacture, release and deliver Product at the Facility
and, thereafter, there is a Supply Default, then there shall be no additional Trigger Event
Readiness Demonstration and, if Amgen pursuant to Section 7.4 elects to itself or through a
Third Party manufacture, release and deliver Product at the Facility, the quantity of Product that
Amgen or its Third Party manufactures at the Facility shall be deemed Amgen Manufactured Product
and, in lieu of the Additional Guarantee Payments set forth in Table 3.2, the Manufacturing
Fees and the [***], Amgen shall pay Nektar the Reduced Additional Guarantee Payment. The Reduced
Additional Guarantee Payment is in consideration for Nektar guaranteeing, and Nektar does hereby so
guarantee, up to the applicable Upper Limit Quantity that it will maintain the Facility (including
without limitation the Manufacturing Suite and, unless Amgen exercises the Purchase Option, the
Manufacturing Line), and cooperate with

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Amgen and its designees as necessary or required, in order for Amgen itself or through a Third
Party to manufacture, release and deliver Product as if such Product were Manufactured, Released
and Delivered by Nektar hereunder. To the extent that Amgen is obligated to pay Nektar any Reduced
Additional Guarantee Payment pursuant to the terms of this Section 3.2, the Reduced
Additional Guarantee Payment shall be payable by Amgen to Nektar only after the date that the
quantity of the Amgen Manufactured Product plus the Product Manufactured, Released and Delivered
hereunder by Nektar (excluding the quantity of the Previously Ordered Product and any Product that
is Rejected) exceeds [***].

3.3 Manufacturing Fees and [***]. Except as set forth in Section 3.2 with respect to any
[***] paid by Amgen, the Exclusive Suite/Guarantee Payment and any applicable Additional Guarantee
Payments or Reduced Additional Guarantee Payment are in addition to any Manufacturing Fees and
[***] that may accrue hereunder.

ARTICLE 4

MANUFACTURE AND DELIVERY

4.1 Manufacture.

     (a)  Nektar shall Manufacture the Product, and prior to shipment to Amgen, store at the Facility,
Release and Deliver the Product, as specified in Orders, all in compliance with the terms of this
Supply Agreement including without limitation the terms of the Quality Agreement. Nektar shall
meet the Standard of Care in the performance of its obligations under this Supply Agreement.
Nektar shall provide all that is required or necessary to perform its obligations under this Supply
Agreement including without limitation providing all permits, licenses, authorizations,
registrations, labor, supervision, facilities, machinery, equipment, materials (including without
limitation Raw Materials), supplies, intellectual property rights, maintenance, calibration,
validation and resources. Nektar has submitted to Amgen, and Amgen has approved in writing
concurrently with entering into this Supply Agreement, copies of the Manufacturing Documents.

     (b)  Subject to the provisions of this Section 4.1, including without limitation the
provisions governing Agreed Improvements and Agreed Change Costs, Amgen shall have the right, in
its reasonable discretion, to make changes to any of the Amgen-Approved Manufacturing Documents and
Specifications. Amgen shall submit to Nektar a Change Notification with respect to [***] that, on
the Effective Date, is set forth in the Specification on Appendix G to the Quality Agreement. No
later than [***] after Nektar’s receipt of each Change Notification or such longer period as
specified, or agreed to (such agreement not to be unreasonably withheld or delayed), in writing by
Amgen, Nektar shall revise pursuant to the Change Notification the documents that are the subject

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to the Change Notification and submit such revised documents to Amgen for review and approval.
Concurrently and in addition, Nektar shall notify Amgen (each a “Response Notice”) of (i) any
Proposed Improvements (including the schedule for undertaking and completing any Proposed
Improvements which schedule may take into consideration Nektar’s other manufacturing activities at
the Facility to the extent that implementation of the Proposed Improvements would result in [***]
interruption of or interference with such other activities) and Proposed Change Costs and (ii) any
and all intellectual property rights of Third Parties of which Nektar has knowledge that might be
relevant to the Change Notification. Unless Amgen specifies or agrees in writing to a longer
period, within [***] after Amgen’s receipt of each timely submitted Response Notice (the “Response
Notice Review Period”), in good faith, the Parties shall discuss the Proposed Improvements and
Proposed Change Costs and attempt to reach agreement on the scope and schedule of the Proposed
Improvements and the Proposed Change Costs to be reimbursed to Nektar by Amgen (the aspects of the
Proposed Improvements and Proposed Change Costs, and any modifications thereto, agreed in writing
by the Parties shall be referred to as, respectively, the “Agreed Improvements” and “Agreed Change
Costs”). With respect to each Response Notice submitted pursuant to this Section 4.1(b) on
which the Parties do not reach agreement as to the scope of the Proposed Improvements or the
Proposed Changes Costs to be reimbursed to Nektar by Amgen before the end of the Response Notice
Review Period, a Party may escalate the review of such Response Notice and the associated Change
Notification pursuant to the escalation process set forth in Section 12.18 and, if the
Parties do not reach agreement as part of such escalation, then the Parties shall refer the matter
to an independent Third Party with expertise in manufacturing facility operation and mutually
agreed upon by the Parties, such agreement not to be unreasonably withheld or delayed
(“Manufacturing Change Evaluator”). Within [***] after referral to the Manufacturing Change
Evaluator, Amgen shall submit to the Manufacturing Change Evaluator the Change Notification and
Response Notice, and Amgen shall cause the Manufacturing Change Evaluator to determine the scope of
the Proposed Improvements and the Proposed Change Costs to be reimbursed to Nektar by Amgen.
Unless Amgen withdraws or modifies the Change Notification that is the subject of the evaluation of
the Manufacturing Change Evaluator, the determination of the Manufacturing Change Evaluator shall
be binding on the Parties. The determination of the Manufacturing Change Evaluator shall be deemed
Confidential Information hereunder. The fees and expenses of the Manufacturing Change Evaluator
shall be borne by [***]. Amgen may at any time, by notice to Nektar, withdraw or modify any Change
Notification, and if Amgen withdraws a Change Notification that is subject to review by a
Manufacturing Change Evaluator before such evaluator makes a determination, then Amgen shall pay
the fees and expenses of such Manufacturing Change Evaluator. With respect to changes to the
Manufacturing Documents and the implementation thereof and changes to the Specifications, Amgen
shall only be obligated

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to reimburse Nektar for the Agreed Change Costs and, to the extent consented to in writing and in
advance by Amgen, such consent not to be unreasonably withheld, the actual costs incurred by Nektar
to secure intellectual property rights from Third Parties.

     (c)  After approval by Amgen and, as applicable and pursuant to Section 4.1(b), after
establishing the Agreed Improvements and Agreed Change Costs, Nektar shall do all that is necessary
or required to comply with the Amgen-Approved Manufacturing Documents. Duplicate originals of the
most current Amgen-Approved Manufacturing Documents shall be maintained by each Party and shall be
automatically incorporated into this Supply Agreement by reference. In Manufacturing the Product,
Nektar shall comply in all respects with the most current Amgen-Approved Manufacturing Documents
along with all other terms and conditions of this Supply Agreement.

     (d)  After Nektar’s receipt of each Change Notification related to the Specifications and after
establishing, as applicable and pursuant to Section 4.1(b), the Agreed Change Costs and
Agreed Improvements, each such changed Specification shall be automatically incorporated into this
Supply Agreement by reference.

4.2 Supply Obligation. Nektar shall be in default of this Supply Agreement if, during the Term, (a)
Nektar fails, refuses or is unable to Manufacture or Release Product pursuant to the terms of this
Supply Agreement, or (b) Nektar fails, refuses or is unable to Deliver Product pursuant to the
terms of this Supply Agreement.

4.3 Annual Forecasts. [***], Amgen will submit to Nektar a non-binding, twelve (12) month forecast
of the quantities of Product Amgen may require Nektar to Manufacture, Release and Deliver during
the next calendar year (each an “Annual Forecast”). Each Annual Forecast is based on Amgen’s good
faith estimates at the time submitted of its requirements for Product Manufactured by Nektar and is
provided for informational purposes only, is nonbinding, and shall not be a commitment from nor
restriction on Amgen with respect to any minimum, maximum, or specific quantity of Product ordered
hereunder. No later than [***] of the Term, Nektar shall notify Amgen of the estimated Raw
Materials Direct Costs for the quantities of Product that are listed in the Annual Forecast for
such calendar year; provided however if for such calendar year Amgen has not submitted an
Annual Forecast or the submitted Annual Forecast is for [***], then Nektar shall base its estimated
Raw Materials Direct Costs on an aggregate of [***] of Product to be Delivered during such calendar
year. Nektar’s notification of the estimated Raw Materials Direct Costs shall include (a) if
applicable, the reasons for any increase of greater than [***] in the Raw Materials Direct Costs
stated in such notice as compared to the estimated Raw Materials Direct Costs stated in the notice
for the immediately preceding calendar year and (b) a written statement signed by an officer of
Nektar certifying that no Trigger Event has occurred since the Effective Date or, in the

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alternative in the event that a Trigger Event has occurred, that Nektar has, pursuant to
Section 4.10, notified Amgen of the occurrence of any and all Trigger Events and no other
Trigger Events have occurred since the Effective Date.

4.4 [***].

4.5 Orders and Delivery.

     (a) Orders. Amgen shall request that Nektar Manufacture Product by submitting to Nektar a
document indicating the quantity of Product to be Manufactured and the date(s) of Delivery (each an
“Order”). All Orders issued hereunder shall be binding and subject to the terms and conditions of
this Supply Agreement. Amgen shall submit Orders to the following email address (or at such other
email address as may from time to time be furnished in advance by notice by Nektar to Amgen, but in
no event shall there be at any one time more than one email address): [***]. Nektar shall Deliver
the total quantity of Product requested in an Order within the following time after Amgen submits
such Order pursuant to this Section 4.5(a) (“Delivery Schedule Date”): the sum of (i)
[***] (“Lead Time”) provided however, that if at the time such Order is submitted, there
are days remaining in the Delivery Schedule Date for a previously placed Order, the Lead Time shall
be increased by that number of remaining days, plus (ii) [***] of Product in excess of [***] of
Product. In addition to the foregoing, Nektar shall Deliver [***] of Product requested in an Order
on or before the expiration of the Lead Time for such Order and, after the expiration of such Lead
Time until the entire quantity of Product requested in such Order has been Delivered by Nektar,
Nektar shall Deliver [***] (each such date for Delivery, an “In-Progress Delivery Schedule Date”).
The following is provided for purposes of example:

     [***]

     [***]

Notwithstanding the foregoing, the Lead Time shall be reduced to [***] if (a) on the date that
Amgen submits an Order, Nektar has in inventory the Raw Materials Minimum Inventory or (b) Nektar
is obligated pursuant to Section 6.3 to obtain and maintain the Raw Materials Minimum
Inventory as Required Inventory (defined below). Furthermore, notwithstanding the foregoing, (A)
if there is a failure of a Critical Equipment that causes a delay in Manufacturing of Product
subject to one or more Orders and such failure is not a result of Nektar’s failure to maintain such
Critical Equipment in accordance with standard industry practice or Nektar’s procedures or
practices or such failure is not a result of Nektar’s abuse or misuse of such Critical Equipment,
then the Lead Time for such Orders may be extended by [***] (which [***] shall include without
limitation Nektar concurrently remediating failures of multiple pieces of Critical Equipment); (B)
if

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during Manufacturing of Product subject to an Order there is a Significant Deviation (as defined in
the Quality Agreement), pursuant to the Quality Agreement Nektar submits to Amgen a Pre-Delivery
Deviation Notification, and Amgen approves of such Pre-Delivery Deviation Notification, then the
Lead Time for such Order may be extended by [***]; and (C) to the extent that a Change Notification
is applicable to an Order and the schedule for the Agreed Improvements related to such Change
Notification or, if there is no related Agreed Improvements, then such Change Notification
specifies a suspension in Manufacturing of Product subject to that Order, then the Lead Time for
such Order may be extended by [***].

     (b) Acknowledgement. [***] after Amgen’s submittal of each Order, Nektar shall notify Amgen
in writing of its receipt of each such Order to the following address (or at such other address as
may from time to time be furnished by notice by Amgen to Nektar) (each an “Order Acknowledgement”):
[***]. No Order Acknowledgement shall, nor shall it be construed to, alter or modify such Order.
Nektar’s failure or refusal to submit an Order Acknowledgement shall in no way alter or relieve
Nektar from its obligations to Manufacture, Release and Deliver Product pursuant to such Order.

     (c) Previously Ordered Product. Amgen ordered [***] of Product from Nektar pursuant to
Change Purchase Order 4500008429 (issued by Amgen on October 9, 2009) (the “Previously Ordered
Product”) and Nektar has acknowledged such order and is manufacturing the Previously Ordered
Product. Notwithstanding the terms of this Supply Agreement, Nektar shall manufacture and deliver
the Previously Ordered Product, and Amgen shall accept or reject the Previously Ordered Product and
compensate Nektar for such manufacture and delivery, pursuant to the terms of the Change Purchase
Order 4500008429 and the Original Supply and License Agreement without reference to, or application
of, this Supply Agreement or the Quality Agreement.

     (d) Release and Delivery. Nektar shall ship to Amgen or its designee [***] (as defined in
Incoterms 2000) each Batch of Product that is ordered by Amgen and Released by Nektar. Unless
notified otherwise by Amgen, Nektar will schedule the freight to be shipped collect via [***] using
International Priority Service for purposes of Delivering the Product to Amgen or its designee.
Nektar shall ship the Product properly packaged and labeled and in compliance with Applicable Laws.

     (e) Title and Risk of Loss. Title and risk of loss to the Product shall remain with Nektar
until the Product has been Delivered to Amgen pursuant to Section 4.5(d), after which title
to and risk of loss of the Product shall pass to Amgen.

     (f) Conflicting Terms. In ordering and Delivering the Product, Amgen and Nektar may use
their standard forms, but nothing in such forms shall be construed to

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amend, supplement or modify the terms or conditions of this Supply Agreement which Supply Agreement
shall govern all Orders and Deliveries.

4.6 Ongoing Readiness for Manufacturing. At all times during the Term, Nektar shall operate and
maintain the Facility and Manufacturing Line as required or necessary to perform and meet its
obligations hereunder (including without limitation its obligation to Manufacture, Release and
Deliver Product before the Delivery Schedule Date and each In-Progress Delivery Schedule Date) and
so as to ensure full compliance with Applicable Laws and this Supply Agreement. Nektar shall not
remove any equipment, tooling or other item in or comprising the Manufacturing Line without Amgen’s
prior written approval, which Amgen may grant or withhold in its sole discretion. Nektar shall
promptly notify Amgen if and when Nektar becomes aware of circumstances that may affect Nektar’s
ability to perform and meet its obligations hereunder and any such notice shall identify in
sufficient detail the nature and impact of the circumstances and Nektar’s plan of action to remedy
such. In addition to and without limiting the generality of the foregoing, and subject to
Section 4.1 for Proposed Improvements, in the event that any equipment, tooling or other
item comprising the Manufacturing Line needs to be replaced for maintenance purposes or to
otherwise bring the Manufacturing Line into a condition required or necessary for Manufacturing
pursuant to the then-current Amgen-Approved Manufacturing Documents, the Specifications or this
Supply Agreement, Nektar shall promptly provide Amgen with prior written notice therefor, and upon
Amgen’s prior written approval (such approval not to be unreasonably withheld, delayed, or
conditioned), and subject to Section 2.1(f) and any similar obligations with respect to the
Manufacturing Line and Facility, Nektar shall replace such equipment, tooling or other item with
the same or similar equipment, tooling or other item that achieves the same functionality and
performance as the replaced item.

4.7 Demonstration and Reduced Additional Guarantee Payment.

     (a) Trigger Event Readiness Demonstration. Unless specified otherwise in writing by Amgen
or unless Amgen has pursuant to Section 7.4 elected to itself or through a Third Party
manufacture Product at the Facility, within [***] after each Trigger Event, and [***] after Amgen’s
written request, Nektar shall demonstrate [***] that Nektar is able and willing to operate and
maintain the Facility and Manufacturing Line as required or necessary to perform and meet its
obligations hereunder (including without limitation its obligation to Manufacture, Release and
Deliver Product pursuant to the terms of this Supply Agreement) (each a “Trigger Event Readiness
Demonstration”). Each Trigger Event Readiness Demonstration shall include the following: (i) the
Manufacture and Release by Nektar of [***] of Product (“Demonstration Batches”) and (ii) at Amgen’s
election, (A) the completion of an audit by Amgen or its designee of the Facility and Manufacturing
operations and systems to determine whether Nektar is in

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compliance with the requirements of ICH Q7 (Nektar shall cooperate with Amgen or its designee, and
Amgen or its designee shall perform each such audit during the time allotted in this Section for
the Trigger Event Readiness Demonstration) or (B) Nektar’s written submittal demonstrating
compliance with the requirements of ICH Q7. At Amgen’s sole option, (y) Amgen may submit an Order
for some or all of the Product that Nektar Released as part of a Trigger Event Readiness
Demonstration and such Order and the Delivery of Product pursuant thereto shall be subject to the
terms of this Supply Agreement, including without limitation Section 8.2 and Section
9.2, or (z) Amgen shall pay Nektar the Manufacturing Fees for the Demonstration Batches and
Nektar shall dispose of the Demonstration Batches.

     (b) Exclusion of Certain Trigger Event. Notwithstanding anything to the contrary in this
Section 4.7, if a Trigger Event arises out of circumstances described in subsection (i) of
Section 1.53 and, pursuant to Section 7.4, Amgen elects to itself or through a
Third Party manufacture, release and deliver Product at the Facility, any and all quantities of
Amgen Manufactured Product shall not count toward the lower or upper limit quantities specified in
Table 3.2.

     (c) Compensation in Specified Circumstance. If following a Trigger Event, pursuant to
Section 4.7(a), Nektar timely performs the Trigger Event Readiness Demonstration and Amgen
[***] that Nektar is able and willing to operate and maintain the Facility and Manufacturing Line
and thereafter Amgen pursuant to Section 7.4 elects to itself or through a Third Party
manufacture, release and deliver Product at the Facility, except as provided otherwise in this
Supply Agreement (for example and without limitation, in the event of an additional Trigger Event
and Nektar’s failure to timely perform a Trigger Event Readiness Demonstration), then [***].

4.8 Continuity of Manufacturing.

     (a) Cooperation Nektar shall fully cooperate with Amgen and use [***] to supply all
assistance reasonably requested by Amgen in carrying out the intentions of this Supply Agreement
including without limitation releasing Product manufactured by Amgen Inc. or its Third Party after
the Operation Election Date (defined below) and providing Amgen with access to personnel, documents
and records as may be reasonably requested or, pursuant to this Supply Agreement, required to be
provided by Nektar.

     (b) Document Submittal Without limiting the general nature of Section 4.8(a), no
later than [***] during the Term, Nektar shall submit to Amgen the following: (i) the training
program (including without limitation the outline and content for the program) and training records
for personnel who Manufacture the Product; (ii) the then current material safety data sheet for
each Raw Material; (iii) the then-current job hazard

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assessments associated with Manufacturing; (iv) documents and records of the installation
qualification and operational qualification of the Manufacturing Line and other equipment and
physical systems necessary or required for the Manufacturing; (v)documents and records of the
performance qualification of the Manufacturing Line and other equipment and physical systems
necessary or required for the Manufacturing; and (vi) other than the Controlled Documents, the
documents used during, or referred to as part of, Manufacturing by personnel who Manufacture the
Product. Additionally, within [***] after the Effective Date, Nektar shall submit to Amgen the
documents set forth in Subsection 4.8(b)(iii) and Subsection 4.8(b)(v), above.

4.9 Key Personnel. Nektar shall maintain qualified personnel in the job positions described on
Exhibit 5 hereto, the maintenance of qualified personnel in such positions being
instrumental to Nektar’s performance of its obligations hereunder (personnel filling such job
positions shall be referred to as “Key Personnel”). Nektar shall cause the Key Personnel to
oversee the Manufacturing, Release by Nektar and Delivery of the Product. In the event that Nektar
replaces, transfers, or terminates any Key Personnel or if any Key Personnel resigns, Nektar will
[***]. No voluntary transfer of Key Personnel by Nektar shall occur at a time or in a manner that
would [***] the Manufacturing, Release by Nektar or Delivery of the Product. [***]

4.10 Notice of Trigger Event. Nektar shall immediately notify Amgen upon the occurrence of a
Trigger Event. Such notice shall include, at a minimum, a description at a reasonable level of
detail of the nature of the Trigger Event.

4.11 Performance of Manufacturing and Facility Operations.

     (a) Test Batches. If between the Effective Date and midnight on December 31, 2010, Amgen
notifies Nektar to Manufacture up to [***] of Product (“Test Batches”), then within [***] after
receipt of such notice (which [***] period shall exclude any days after the date of such notice on
which the Facility was shut down for a maintenance-related reason provided that Nektar notified
Amgen in advance of receipt of such notice from Amgen of the dates of such shut down), unless a
later date is specified therein, Nektar shall commence Manufacturing of the Test Batches and notify
Amgen of the schedule for Manufacturing (including in that notice the information set forth in
Section 4.11(b)) (“Test Batches Manufacturing Schedule”) and, thereafter, Manufacture the
Test Batches pursuant to the Test Batches Manufacturing Schedule. The quantity of Product
resulting from the Manufacturing of the Test Batches shall not be included in, or count toward, the
calculation of the lower limit quantities or upper limit quantities set forth in Section
3.2. At Amgen’s request, Nektar shall provide to Amgen samples of Product, appropriately
packaged and labeled, resulting from the Manufacturing of the Test Batches. [***] at Amgen’s sole
option, Amgen may submit an

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Order for some or all of the Product that Nektar Released as part of Manufacturing the Test Batches and such Order and
the Delivery of Product pursuant thereto shall be subject to the terms of this Supply Agreement
including without limitation Section 3.2,Section 5.1, Section 8.2, and
Section 9.2. At Amgen’s request, Nektar shall, pursuant to the Standard Operating
Procedures, dispose of that portion of the Product resulting from the Manufacture of the Test
Batches that is not subject to an Order.

     (b) Notice of Manufacturing Schedule. With respect to each Order, [***], Nektar shall
notify Amgen of the following: (i) the number of Batches it anticipates Manufacturing to fulfill
the Order; and (ii) for each Batch, the activities and schedule of activities supporting
Manufacturing, Release and Delivery including without limitation the schedule for receiving,
dispensing, and testing Raw Materials, Batch process sequencing, conducting in-process and release
testing, and packaging and storing of each Batch.

     (c) Amgen Representatives. In addition to the Person in Plant (defined in the Quality
Agreement), Amgen shall have the right during Manufacturing of each Batch (including without
limitation the Test Batches) to have at any time up to [***] of its representatives (which
representatives may be Third Parties) (collectively or singularly, the “Amgen Representatives”)
present at the Facility to observe the Manufacturing and inspect the Facility Infrastructure.
Nektar shall, and shall cause its representatives who are performing, or who may perform, any
portions of Manufacturing to cooperate with the Amgen Representatives including without limitation
providing explanations of the activities they are performing and providing timely and full
responses to questions asked, or information requested, by the Amgen Representatives. Nektar shall
provide Amgen with (and allow Amgen to copy and retain) documentation, data, and records pertaining
to the Manufacturing. Nektar shall provide the Amgen Representatives with sufficient and
reasonable office space, use of network connections, telephones, copiers, and other office
equipment. The Amgen Representatives shall comply with reasonable security and safety procedures
provided to Amgen by Nektar in writing no less than [***] in advance of the Amgen Representatives
arriving at the Facility. At the request of Nektar, prior to being allowed access to the Nektar
Facility, Amgen shall cause each Amgen Representative who is not an employee of Amgen to execute a
confidentiality agreement reasonably acceptable to Nektar obligating such Amgen Representative to
maintain the confidentiality of Nektar confidential information that may be disclosed to such Amgen
Representative.

     (d) Facility Infrastructure. Upon Amgen’s request, Nektar shall, at reasonable times, meet
and discuss with Amgen the electrical power, water, cooling, heating, ventilation, specialty gases
and all other common utilities and infrastructure at or supporting the Facility that could
reasonably impact the quality of the Product

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Manufactured at the Facility, the environment, or the health or safety of personnel who Manufacture
the Product (collectively, “Facility Infrastructure”) and, during each such meeting (or if it is
unreasonable to do so during the meeting, no later than [***] following the meeting), provide
additional information (including without limitation capacities, drawings, designs, controls, and
specifications) and, to Amgen’s reasonable satisfaction, respond to Amgen’s questions regarding the
Facility Infrastructure.

ARTICLE 5

MANUFACTURING FEES

5.1 Manufacturing Fees.

. In addition to payments made pursuant to Section 3.1 and Section 3.2 hereof, in
consideration for the quantity of Product that Nektar Manufactures, Releases and Delivers pursuant
to the terms of this Supply Agreement and the applicable Order and that is not Rejected, Amgen
shall pay to Nektar the Manufacturing Fees applicable to such quantity of Product. Notwithstanding
anything to the contrary contained in this Supply Agreement, in no event shall Nektar be entitled
to receive any Manufacturing Fees for charges, costs or expenses to the extent arising out of or
resulting from (i) any costs or expenses incurred by Nektar or its Affiliates or payable by Amgen
to remedy any error, omission or mistake of Nektar, its Affiliates or their respective
subcontractors or personnel or breach of this Supply Agreement or any Order by Nektar, its
Affiliates or their respective subcontractors or personnel, or (ii) any incremental or additional
costs or expenses incurred by Nektar or its Affiliates or payable by Amgen to remedy any error,
omission or mistake of Nektar, its Affiliates or their respective subcontractors or personnel or
breach of this Supply Agreement or any Order by Nektar, its Affiliates or their respective
subcontractors or personnel.

     (a) Fixed Fee Component Adjustment. The Fixed Fee Component of the Manufacturing Fees shall
be [***]

          1. [***]

          2. [***]

          3. [***]

          4. [***]

          5. [***]

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5.2 [***]. If during the period from [***] through [***] Amgen submits Orders for Product that
specify that Product [***] is to be Delivered during [***], then, during [***], Nektar shall [***]
that is Manufactured, Released and Delivered by Nektar and not
Rejected (“[***]”). For the
avoidance of doubt, the Previously Ordered Product shall not count toward the [***].

5.3 Exclusive Compensation. Other than as set forth in, and pursuant to the conditions of,
Section 3.1, Section 3.2, Section 4.1, Section 5.1, and Section
5.2, Nektar shall not be entitled to any other compensation for performance hereunder including
without limitation compensation for any Batch of Product that is Manufactured but not Released or
Delivered by Nektar and any costs or expenses incurred by Nektar arising out of any obligations of
Nektar set forth in the Quality Agreement.

ARTICLE 6

MATERIALS, WORK IN PROGRESS AND PRODUCT

6.1 Raw Materials. In addition to the requirements set forth in Section 6 of the Quality
Agreement, Nektar shall permit, and shall use commercially reasonable efforts to cause its
suppliers of Raw Materials to permit, Amgen to conduct audits of the facilities and quality systems
of the suppliers of Raw Materials. Nektar shall promptly notify Amgen in the event that Nektar
defaults, or is alleged to have defaulted, under an agreement with one or more of its suppliers of
Raw Materials or a supplier of other goods or services required for the Manufacture of the Product
(including without limitation suppliers of utilities to the Facility), and, without limiting any
other rights or remedies available to Amgen, Amgen shall have the right, but not the obligation, to
cure such default.

6.2 Raw Material Procurement. In the event Amgen elects to manufacture or have manufactured by a
Third Party any portion of its needs or requirement for Product or Licensed Product, Amgen shall
not be restricted from procuring Raw Materials from Third Parties, and Nektar agrees, upon request
by Amgen, to supply Amgen with all requested Raw Materials required for manufacture of the Product
or Licensed Product at [***] to the extent that such Raw Materials are available from Nektar’s
suppliers to fulfill any such requests by Amgen. Nektar will [***] to obtain or maintain the
ability to resell Raw Materials to Amgen pursuant to this Section 6.2.

6.3 Required Inventory. From time-to-time during the Term, Amgen may notify (each a “Required
Inventory Notice”) Nektar to, and if so notified and within [***] after notification Nektar shall,
obtain and maintain at the Facility certain quantities and types of Raw Materials (“Required
Inventory”). Within [***] after receipt of each Required Inventory Notice, Nektar shall submit to
Amgen Nektar’s good faith estimate of the cost of obtaining and maintaining at the Facility the
Required Inventory that is the subject of

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the Required Inventory Notice (“Estimated Costs of Maintaining Required Inventory”). Within [***]
after Amgen’s receipt of the Estimated Costs of Maintaining Required Inventory, Amgen and Nektar
shall negotiate in good faith the amount to be paid by Amgen to Nektar in return for Nektar
maintaining the Required Inventory, and Amgen shall only be obligated to pay Nektar in return for
maintaining the Required Inventory amounts agreed to by Amgen in writing, and, if the Parties are
unable to reach agreement within such [***], then the Parties shall refer the matter to an
independent Third Party with expertise in sourcing and storing raw materials and mutually agreed
upon by the Parties, such agreement not to be unreasonably withheld or delayed (“Raw Materials
Evaluator”). Within [***] after referral to the Raw Materials Evaluator, Nektar shall submit to
the Raw Materials Evaluator the basis for the Estimated Costs of Maintaining Required Inventory and
Amgen shall submit the basis for its objection to the Estimated Costs of Maintaining Required
Inventory, and the Raw Materials Evaluator shall then determine an estimated cost of obtaining and
maintaining at the Facility the Required Inventory and such determination shall be binding on the
Parties. The determination of the Raw Materials Evaluator shall be deemed Confidential Information
hereunder. The fees and expenses of the Raw Materials Evaluator shall be borne by [***]. Nektar
shall store and maintain (including without limitation rotation of inventory) the Required
Inventory so that it is appropriately available for use in the Manufacturing of Product. Nektar
shall have the right to use in Manufacturing the Required Inventory provided that Nektar restock
such Raw Materials so as to always maintain the Required Inventory in the quantities specified in
each Required Inventory Notice. Upon and pursuant to Amgen’s written request, at Amgen’s cost
including the Raw Materials Direct Costs, Nektar shall ship to Amgen or its designee Raw Materials
maintained in the Required Inventory and, within [***] thereafter, Nektar shall replenish the
Required Inventory. Upon request of Amgen at any time, Nektar will promptly notify Amgen of the
quantity of each Raw Material held by Nektar for Amgen at the Facility.

6.4 Segregation of Amgen Materials. Nektar shall keep located at the Facility, identified for
Amgen, and segregated from other raw materials, works in progress, or finished products the Raw
Materials, work in progress in the Manufacturing and, prior to Delivery to Amgen, Product
(collectively, “Amgen Materials”). Nektar hereby grants to Amgen an immediate, present,
irrevocable and paid up right and easement to enter the Facility and take possession and control of
the Amgen Materials. [***]. In the event, and to the extent, that Amgen takes possession and
control of these segregated Raw Materials, works in progress, or Product, Amgen shall [***], for
such segregated Raw Materials and for the Raw Materials used in the Manufacturing of the works in
progress.

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ARTICLE 7

MANUFACTURING LINE

7.1 Grant of Security Interest in the Manufacturing Line. Nektar hereby grants to Amgen Inc., its
successors and assigns a valid first lien on and security interest in the Manufacturing Line.
Nektar agrees to execute such further instruments and documents of security in form and substance
reasonably satisfactory to Amgen Inc. as to the security interest herein granted by Nektar in favor
of Amgen Inc. including without limitation a financing statement under the Uniform Commercial Code
covering the Manufacturing Line.

7.2 Easement and Option to Purchase Manufacturing Line. In consideration of the Exclusive
Suite/Guarantee Payment set forth in Section 3.1, above, Nektar hereby grants to Amgen Inc.
the following: (i) an immediate, present, irrevocable and fully paid up option which Amgen Inc. may
exercise in its sole discretion to purchase the Manufacturing Line (“Purchase Option”), and (ii) an
easement in the form attached hereto as Exhibit 4 (the “Easement”), which Easement provides
Amgen Inc., among other things, with an immediate right to enter and access the portion of the
Facility where the Manufacturing Suite is located, and an immediate, present, irrevocable and fully
paid up right and license to use and operate at will the Manufacturing Line and Manufacturing
Suite, regardless of whether Amgen Inc. exercises the Purchase Option. Amgen Inc.’s right to use
the Manufacturing Suite and operate the Manufacturing Line include without limitation use of power,
water, cooling, heating, ventilation, telecommunications and all other common utilities and
services and access to all other areas of, and equipment at, the Facility that are reasonably
necessary or required for the purpose of manufacturing, releasing and delivering the Product.
[***] In the event that Amgen Inc. exercises the Purchase Option, [***] within [***] after such
exercise, [***].

7.3 Operation of Manufacturing Line Purchased by Amgen. In the event that Amgen Inc. exercises the
Purchase Option, Amgen Inc. may elect, in its sole discretion, to (i) operate the Manufacturing
Line itself; (ii) sublicense, pursuant to the License Agreement, to any Third Party the right to
Manufacture Product or Licensed Products and permit such Third Party to operate the Manufacturing
Line without any restriction whatsoever, whether set forth in this Supply Agreement or otherwise,
including without limitation in Section 3.1 or Section 5.3(c) of the License
Agreement; or (iii) permit Nektar to continue to operate the Manufacturing Line under the terms and
conditions of this Supply Agreement (and, in the case of this subsection (iii), Nektar will be
entitled to receive compensation pursuant to Section 3.1, the Additional Guarantee Payments
pursuant to Section 3.2 without application of the Reduced Additional Guarantee Payment,
Agreed Change Costs pursuant to Section 4.1, Manufacturing Fees pursuant to Section
5.1, and the [***] pursuant to Section 5.2).

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7.4 Amgen Inc.’s Election to Operate the Manufacturing Line. Amgen Inc. shall notify Nektar of its
election to itself, or through a Third Party, manufacture, release, and deliver Product at the
Facility pursuant to the rights set forth in this Agreement (the date of such notice, the
“Operation Election Date”). Following the Operation Election Date, Amgen Inc. (or its designated
Third Party) will use the Manufacturing Suite and Manufacturing Line solely for and in support of
the manufacture, release and delivery of the Product and Amgen shall be entitled, but not
obligated, to terminate the Product supply portion of this Supply Agreement without liability, fee,
expense, cost reimbursement, penalty or other amounts of any type or kind to Amgen; provided
however, that Amgen Inc. will still be responsible for payment of the following: (i) the
Option Price if Amgen exercises the Purchase Option; (ii) as applicable, costs as set forth in
Section 6.4; (iii) any accrued payments that are due and payable to Nektar hereunder as of
the Operation Election Date (including, as applicable, payments provided for in Section
3.2, Section 3.3, Section 4.1, Section 5.1 and Section 5.2);
and (iv) as applicable, Additional Guarantee Payment(s) or Reduced Guarantee Payment(s) pursuant to
Section 3.2.

     (a)  [***] after the Operation Election Date, without limiting the Purchase Option, Easement, and
license set forth in Section 7.2 and operation and access rights set forth in Section
7.3, Nektar shall notify Amgen of the areas within the Facility for use by Amgen Inc. (or its
designated Third Party) for the following: (i) the shipping and receiving dock area of the
Facility; (ii) storage of consumables, critical spares, quarantined and released Raw Materials and
packaging for use in the manufacture of Product; (iii) storage of work in progress and quarantined
and released Product; (iv) areas for testing, dispensing, packaging and storing retained or other
samples; (v) storage of solid and liquid waste, including hazardous waste, generated by Amgen Inc.
(or its designated Third Party) through the manufacture of Product; (vi) break rooms, lavatories,
and parking areas for use by Amgen Inc. (or its designated Third Party) employees while at the
Facility; and (vii) directions for accessing the Manufacturing Suite from the exterior of the
Facility.

     (b)  After the Operation Election Date, (i) Amgen Inc. will, and will cause its employees and staff
of its designated Third Party manufacturer when present at the Facility to, comply with written
instructions of Nektar of which (A) Amgen Inc. has been notified in advance and (B) are reasonably
necessary for Nektar to operate the Facility in a reasonably orderly manner and in compliance with
Applicable Laws; and (ii) Amgen Inc. shall, and as applicable it shall cause its Third Party
manufacturer to, comply with all national, state and local laws, statutes, rules, ordinances, and
regulations applicable to Amgen Inc.’s (or its Third Party manufacturer’s) performance of
manufacturing, release and delivery of the Product at the Facility.

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ARTICLE 8

QUALITY

8.1 Quality Agreement. The Quality Agreement attached hereto as Exhibit 1 shall apply
hereto and is incorporated herein by reference. On or before August 23, 2010, Nektar submitted a
draft Nektar Policy for Quality Risk Management to Amgen and, thereafter, Amgen provided input and
accepted as adequate the Nektar Policy for Quality Risk Management. Nektar shall implement the
Nektar Global Policy — Quality Assurance, Quality Risk Management, 980 14522 Rev.00, effective
October 5, 2010 within [***] after the Effective Date, but in no event later than [***]. Nektar
shall, [***], do all that is necessary or required to perform the activities and meet the
deliverables set forth in the Audit Resolutions Finding Plan. Nektar shall do all that is
necessary or required to implement request for change number RFC-2010 (approved by Amgen on October
14, 2010) on or before November 15, 2010. [***] Nektar shall, [***], do all that is necessary or
required to perform the activities, cooperate and communicate with Amgen, and provide to Amgen the
deliverables, set forth in Exhibit 6 pursuant to the schedule set forth therein.

8.2 Rejection. Amgen shall have [***] following the Delivery Date of each Batch (or portion
thereof) of Product to reject such Product based on the following: [***]. Any such rejection will
be given by written notice to Nektar specifying the manner in which all or part of such Batch of
Product fails to meet the foregoing requirements or warranty(ies) (“Rejection Notice”). Within
[***] after receipt of a Rejection Notice, if the basis for the Rejection Notice is anything other
than analytical results obtained from methods set forth in the Specifications and if Nektar in good
faith disagrees with the basis for the Rejection Notice, Nektar shall notify Amgen of the basis for
its position and the Parties shall, within [***] of Amgen’s receipt of such notice from Nektar,
attempt to reach agreement on whether pursuant to this Section 8.2 Amgen was entitled to
reject the Product. If the Parties are unable to reach agreement within such [***], then the
Parties shall refer the matter to an independent Third Party with expertise in manufacturing
pursuant to ICH Q7 and mutually agreed upon by the Parties, such agreement not to be unreasonably
withheld or delayed (“Rejection Evaluator”). Within [***] after referral to the Rejection
Evaluator, Nektar shall submit to the Rejection Evaluator the applicable Amgen-Approved
Manufacturing Documents and the applicable Certificate(s) of Analysis and Batch Record and Amgen
shall submit to the Rejection Evaluator the applicable Rejection Notice and Section 2.1(l),
Section 2.1(n), and Section 2.1(o) of this Supply Agreement (the “Evaluation
Documents”). Amgen shall cause the Rejection Evaluator to determine, based on the Evaluation
Documents and the Rejection Evaluator’s expertise in manufacturing pursuant to ICH Q7, whether
pursuant to this Section 8.2 Amgen was entitled to reject the Product and such
determination shall be binding on the Parties. The determination of the Rejection Evaluator shall
be deemed Confidential Information hereunder. The fees and expenses of the Rejection Evaluator

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shall be borne by the Party against whom the Rejection Evaluator’s determination is made. For each
Batch (or portion thereof) of the Product that is Rejected, Amgen shall, at Nektar’s direction (not
to be unreasonably withheld or delayed) and expense, either destroy or return to Nektar such
Product. Notwithstanding that certain rights and remedies are set forth in this Supply Agreement
with respect to a Supply Default, at Amgen’s written request, Nektar shall Manufacture, Release and
Deliver, at Nektar’s own cost and expense provided that Amgen has paid for the non-conforming Batch
of Product, a Batch of Product (each a “Replacement Batch”) for each Batch of Product that was the
subject of such Rejection Notice, and each Replacement Batch shall be subject to the rejection
process set forth in this Section 8.2. The Delivery Schedule Date and In-Progress Delivery
Schedule Date for each Replacement Batch shall be determined pursuant to Section 4.5(a).
For the avoidance of doubt, if a Replacement Batch is Rejected, then in addition to other remedies,
at Amgen’s sole option and direction, Nektar shall either (a) Manufacture a new Batch of Product at
Nektar’s own cost and expense provided that Amgen has paid for the non-conforming Batch of Product
or (b) refund to Amgen all sums paid by Amgen to Nektar in connection with the non-conforming Batch
of Product. [***]

ARTICLE 9

INVOICING AND PAYMENT

9.1 Invoicing. Nektar shall, no later than [***] after the Delivery Date for each Batch of Product
that is Manufactured, Released and Delivered by Nektar and not Rejected, submit to Amgen a written
invoice for the Manufacturing Fees and, if applicable, [***] associated with such Product. Nektar
shall submit such invoice for payment to the following address:

     [***]

Amgen may change, by written notice to Nektar, the address or method for submitting invoices
hereunder. Each invoice shall identify each Batch of Product that is the subject of the invoice,
the total Manufacturing Fees, [***], if any, and the following:

	 	(i)	 	The Amgen contract number for this Supply Agreement;
	 
	 	(ii)	 	Order number;
	 
	 	(iii)	 	Description of those portions of the Order completed; and
	 
	 	(iv)	 	If applicable, a detailed, line-itemed list of all of the costs included in the
Raw Materials Direct Costs.

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In the event that Amgen reasonably requests additional information for any amounts stated in an
invoice, Nektar shall submit to Amgen the additional information requested within [***] after
receipt of each such request. Within [***] after receipt of an invoice, Amgen shall notify Nektar
of any amounts disputed by Amgen that are stated in an invoice and the basis for such dispute, such
invoice shall be deemed withdrawn by Nektar, and, upon receipt of such notification, Nektar shall
submit a revised invoice stating only undisputed amounts (each, a “Correct Invoice”). Upon
resolution of disputed amounts, Nektar shall submit an invoice pursuant to this Article 9
for that portion of the disputed amounts, if any, that the Parties mutually agree are due and no
longer in dispute.

9.2 Payment. In the case of an invoice that is undisputed by Amgen, Amgen will pay Nektar the
amount of the invoice within [***] after receipt of such invoice. In the case of an invoice that
was disputed by Amgen, following receipt of a Correct Invoice, Amgen will pay Nektar the amounts
stated in such Correct Invoice within [***] after receipt of such. Any amounts stated in an
undisputed invoice or a Correct Invoice that remain unpaid after such sixty (60) days shall accrue
interest until paid at [***]. Payment by Amgen does not constitute acceptance of Nektar’s
performance hereunder or an admission of liability.

ARTICLE 10

CONFIDENTIALITY

10.1 Confidentiality. Except to the extent expressly authorized by this Supply Agreement or
otherwise agreed in writing by the Parties, the Parties agree that, for the term of this Supply
Agreement and for [***] thereafter, the Receiving Party shall keep confidential and shall not
publish or otherwise disclose and shall not use for any purpose other than as provided for in this
Supply Agreement any Confidential Information of the Disclosing Party.

10.2 Authorized Disclosure.

     (a)  Notwithstanding anything to the contrary contained in this Supply Agreement, a Receiving Party
may disclose Confidential Information of the Disclosing Party to the extent required, as advised by
counsel, (i) in response to a valid order of a court or other governmental body or as required by
or to comply with Applicable Laws, (ii) with respect to Amgen or its Affiliates, filing or
prosecuting Patent Rights for Amgen Products, or (iii) prosecuting or defending litigation against
Third Parties; provided however, that the Receiving Party shall advise the Disclosing Party
in advance of such disclosure to the extent practicable and permissible by such order or Applicable
Laws, shall reasonably cooperate with the Disclosing Party, if requested, in seeking an

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appropriate protective order or other remedy, and shall otherwise continue to perform its
obligations of confidentiality set forth in this Supply Agreement.

     (b)  Notwithstanding anything to the contrary contained in this Supply Agreement, Amgen or its
Affiliates may disclose Confidential Information of Nektar to the extent such disclosure is
reasonably necessary, as advised by counsel, under the following circumstances:

	 	(i)	 	regulatory filings for the Product, Licensed Product, or Amgen Products; or
	 
	 	(ii)	 	conducting pre-clinical or clinical trials of Amgen Products.

In the event Amgen or one of its Affiliates intends to disclose Confidential Information of Nektar
pursuant to this Section 10.2(b), Amgen will, except where impracticable, give reasonable
advance notice to Nektar of such disclosure and use reasonable efforts to secure confidential
treatment of such Confidential Information.

     (c)  Notwithstanding anything to the contrary contained in this Supply Agreement, Amgen or its
Affiliates may disclose Confidential Information of Nektar to the extent such disclosure is
reasonably necessary to [***]. Amgen shall, except where impracticable, give reasonable advance
notice of such disclosures to Nektar and shall use reasonable efforts to secure confidential
treatment of such Confidential Information.

     (d)  Notwithstanding anything to the contrary contained in this Supply Agreement, Confidential
Information of Nektar received by Amgen hereunder may be disclosed by
Amgen to [***].

ARTICLE 11

TERMINATION AND TERM

     11.1 Termination for Convenience. Amgen, upon notice to Nektar, may terminate for convenience,
without cause, this Supply Agreement in its entirety. Such termination shall not relieve Amgen of
its obligations hereunder to pay Nektar the Exclusive Suite/Guarantee Payment, undisputed amounts
on account of Manufacturing Fees and, if applicable, [***], Additional Guarantee Payments, and
Reduced Additional Guarantee Payments that are due and owing on the date of such termination.
After receipt by Nektar of Amgen’s notice of termination pursuant to this Section 11.1,
other than fulfilling Orders at that time pending, Nektar shall have no obligation to supply
Product to Amgen under this Supply Agreement and shall be released from supply guarantees set forth
in this Supply Agreement.

     11.2 Nektar Default. In the event Nektar shall default in the performance of any material
obligation hereunder, Amgen shall give Nektar notice of the default (“Notice of

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Default") specifying the nature of the default and requesting that Nektar cure such default within
[***]; provided however, except as expressly set forth in the definition of Trigger Event,
there shall be no cure period for any such default in performance that constitutes a Trigger Event.
If Nektar shall dispute the existence, extent or nature of the default set forth in the Notice of
Default, the Parties shall use good faith efforts to resolve the dispute. Nektar defaults shall
include without limitation Nektar’s failure, refusal or inability to (i) supply Product in
quantities requested hereunder or (ii) Manufacture, Release, or Deliver Product in accordance with
the terms of this Supply Agreement including without limitation the Orders, the Quality Agreement,
ICH Q7, or the Specifications.

     11.3 Amgen Default. In the event Amgen shall default in the performance of any material obligation
hereunder, Nektar shall give Amgen a Notice of Default specifying the nature of the default and
requesting that Amgen cure such default within [***]. If Amgen shall dispute the existence, extent
or nature of the default set forth in the Notice of Default, the Parties shall use good faith
efforts to resolve the dispute. In the event Amgen shall fail to cure such default within [***] of
receipt of the Notice of Default, Nektar shall be entitled to pursue legal remedy for such default;
provided however, that Nektar shall not have the right to terminate this Supply Agreement
based on a default by Amgen.

     11.4 Insolvency. Either Amgen or Nektar may, in addition to any other remedies available to it by
law or in equity, terminate this Supply Agreement, in whole or in part, by written notice to the
other Party (the “Insolvent Party”) in the event the Insolvent Party shall have become insolvent or
bankrupt, or shall have made an assignment for the benefit of its creditors, or there shall have
been appointed a trustee or receiver of the Insolvent Party or for all or a substantial part of its
property, or any case or proceeding shall have been commenced or other action taken by or against
the Insolvent Party in bankruptcy or seeking reorganization, liquidation, dissolution, winding-up
arrangement, composition or readjustment of its debts or any other relief under any bankruptcy,
insolvency, reorganization or other similar act or law of any jurisdiction now or hereafter in
effect, or there shall have been issued a warrant of attachment, execution, distraint or similar
process against any substantial part of the property of the Insolvent Party, and any such event
shall have continued for [***] undismissed, unbonded and undischarged.

     11.5 Term. Unless earlier terminated pursuant to its terms, this Supply Agreement shall terminate
on the tenth anniversary of the Effective Date (the “Term”); provided, however, that this
Supply Agreement shall remain in effect with respect to any then-pending Order(s) issued under this
Supply Agreement until completion of performance thereunder unless terminated by Amgen for cause as
provided in Section 11.2 or Section 11.4 and instructed by Amgen that such
then-pending Order(s) are also

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terminated. Expiration of the Term shall not limit any warranty or other obligations of a Party which either by
their express terms or by their nature would survive the expiration of the Term.

ARTICLE 12

MISCELLANEOUS PROVISIONS

     12.1 Debarred Persons. Nektar will not use any Debarred Person in performing its obligations under
this Supply Agreement. Nektar will promptly notify Amgen in writing if any Person who is
performing the Manufacturing is or becomes a Debarred Person or if any action, suit, claim,
investigation, or other legal or administrative proceeding is pending or, to the best of Nektar’s
knowledge, threatened, that would make any Person performing the Manufacturing a Debarred Person or
would preclude Nektar from performing its obligations under this Supply Agreement.

     12.2 Right to Set-off. Each Party has the right, in addition to any other right or remedy it might
have under this Supply Agreement, to set-off against or withhold amounts otherwise due and payable
to the other Party under this Supply Agreement: (i) the full or partial amount of all damages,
losses, costs, and expenses incurred by such Party resulting from the other Party’s breach of or
other failure to perform under this Supply Agreement; and (ii) the full or partial amount of any
other amounts due and payable to such Party by the other Party including without limitation those
amounts arising under this Supply Agreement. The foregoing right of set-off shall not prevent a
Party from pursuing a legal remedy or judicial determination that such right of set-off was not
properly exercised.

     12.3 No Exclusivity or Minimum. Nothing contained herein shall (i) obligate Amgen to any exclusive
relationship with Nektar, (ii) restrict or preclude Amgen from contracting with any competitor of
Nektar, or (iii) obligate Amgen to purchase any minimum amount of Product from Nektar. Nothing
contained herein shall (i) with the exception of exclusive use of the Manufacturing Suite and
Manufacturing Line as set forth in Section 3.1, obligate Nektar to any exclusive
relationship with Amgen or (ii) restrict or preclude Nektar from contracting with any competitor of
Amgen.

     12.4 Precedence. In the event of a conflict between (i) the terms and conditions set forth in this
Supply Agreement or any Order and (ii) the terms and conditions set forth in any document
(including without limitation Nektar’s acknowledgments of Orders or Nektar’s invoices) issued in
connection with this Supply Agreement or any Order, the terms and conditions set forth in this
Supply Agreement and, as applicable, an Order shall control. In the event of a conflict between
the terms and conditions of this Supply Agreement and the terms and conditions of an Order, the
terms and conditions of this Supply Agreement

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shall control. In the event of a conflict between
the terms and conditions of this Supply
Agreement and any exhibit or attachment to this Supply Agreement (including without limitation the
Quality Agreement), the terms and conditions of this Supply Agreement shall control.

12.5 Recordkeeping and Audit.

     (a) Nektar Obligations. Nektar shall maintain complete, accurate and correct books,
records and accounts relating to the performance of Manufacturing, Releasing and Delivering
including without limitation those relating to the Raw Materials Direct Costs and performance
obligations set forth in the Quality Agreement. All books, records and accounts relating to
financial matters must be in a format consistent with GAAP. Nektar shall maintain such books,
records and accounts for a period of [***] after the expiration or termination of this Supply
Agreement. Without limiting and in addition to the terms of the Quality Agreement regarding
documentation and recordkeeping, upon Amgen’s reasonable request, Nektar shall make available to
Amgen and its representatives such books, records and accounts for copy, review and audit at such
reasonable times and locations reasonably designated by Nektar during the Term and [***]
thereafter. Notwithstanding anything to the contrary contained herein, all costs associated with
such maintenance of Nektar’s books, records and accounts shall be at Nektar’s sole expense and
shall not be reimbursable by Amgen hereunder. Should Nektar fail to maintain such books, records
or accounts as required hereunder, Nektar shall provide its good faith assistance to, and reimburse
Amgen for its reasonable costs to, recreate such books, records and accounts. In the event that as
part of an audit Amgen or its representatives determine that, given the terms of this Supply
Agreement, Amgen overpaid Nektar, then, unless the subject of a good faith dispute (in which case
Nektar shall notify Amgen of, and the basis for, such good faith dispute and such dispute shall be
subject to Section 12.18), Nektar shall repay to Amgen the overpaid amount within [***]
after Amgen’s written demand therefor. However, Nektar shall have the right to respond to Amgen’s
audit findings within [***] following notice of such findings. In the event that as part of an
audit Amgen or its representatives determine that, given the terms of this Supply Agreement, Amgen
underpaid Nektar, Amgen shall promptly notify Nektar of such underpayment and pay to Nektar the
amount of the underpayment within [***] after the date of such notification. Amgen’s performance
of an audit and Nektar’s repayment of any overpaid amounts shall not limit any of Amgen’s rights or
remedies with respect to such overpaid amounts or Nektar’s performance of its obligations under
this Supply Agreement, all of which rights and remedies are reserved by Amgen. The audit rights
specified in this section are in addition to any other audit rights provided for in this Supply
Agreement (including without limitation those provided for in the Quality Agreement).

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     (b) Amgen Obligations. Only after the Operation Election Date and only with respect to the
quantity of the Amgen Manufactured Product, Amgen shall maintain, or cause to be maintained,
complete and accurate records of the quantity of the Amgen Manufactured Product (collectively, the
“Amgen Records”). Amgen shall maintain the Amgen Records for a period of no less than [***] after
the expiration or termination of this Supply Agreement. Amgen shall make the Amgen Records
available to Nektar for copy, review and audit at such reasonable times and locations reasonably
designated by Amgen during the Term and [***] thereafter. Notwithstanding anything to the contrary
contained herein, all costs associated with such maintenance of the Amgen Records shall be at
Amgen’s sole expense and shall not be reimbursable by Nektar hereunder. Should Amgen fail to
maintain the Amgen Records as required hereunder, Amgen shall provide its good faith assistance to,
and reimburse Nektar for its reasonable costs to, recreate such books, records and accounts. In
the event that as part of an audit Nektar determines that given the terms of Section 3.2
Amgen underpaid Nektar, unless the subject of a good faith dispute (in which case Amgen shall
notify Nektar of, and the basis for, such good faith dispute and such dispute shall be subject to
Section 12.18), then Amgen shall pay to Nektar the underpaid amount upon Nektar’s written
demand therefor within [***] after Nektar’s written demand therefor.

12.6 Assignment. Neither this Supply Agreement nor any interest hereunder shall be assignable by
Nektar or Amgen without the prior written consent of the other Party; provided however,
that this Supply Agreement may be assigned by either Nektar or Amgen (the “Assigning Party”) in
connection with a transaction that is a Change of Control provided that within [***] after the
closing of each such transaction the successor or surviving Person delivers to the other Party a
written commitment signed by the successor or surviving Person stating that it shall comply with
all of the terms, conditions and performance obligations under this Supply Agreement. This Supply
Agreement shall be binding upon the successors and permitted assigns of each Party and the name of
a Party appearing herein shall be deemed to include the names of such Party’s successors and
permitted assigns to the extent necessary to carry out the intent of this Supply Agreement. Any
assignment not in accordance with this Section 12.6 shall be void.

12.7 Further Actions. Each Party agrees to execute, acknowledge and deliver such further
instruments, and to do all such other acts, as may be necessary or appropriate or reasonably
requested by the other Party in order to carry out the purposes and intent of this Supply Agreement
and to evidence, perfect or otherwise confirm its rights hereunder. Amgen will have the right to
exercise its rights and perform its obligations hereunder through its Affiliates; provided
that Amgen will be responsible for its Affiliates’ performance hereunder.

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12.8 No Trademark Rights. Except as expressly otherwise authorized herein, no right, express or
implied, is granted by this Supply Agreement to use in any manner the name “Amgen” or “Nektar” or
any other trademark, service mark or trade name of the other Party or any of its respective
Affiliates in connection with the performance of this Supply Agreement.

12.9 Disclosure of Supply Agreement and Public Announcements. The Parties agree that the contents
of this Supply Agreement shall be considered Confidential Information of the Parties.
Notwithstanding the foregoing and Section 10.1, above, each Party shall have the right to
disclose in confidence the material terms of this Supply Agreement to Third Parties retained by
such Party to perform legal, accounting or similar advisory services who have a need to know such
terms in order to provide such advisory services provided that such Third Parties are
subject to written obligations of confidentiality at least as stringent as those contained in this
Supply Agreement. Nektar shall not make any public announcement about the Supply Agreement, or any
part thereof, or its business relationship with Amgen or one or more of its Affiliates
(collectively, “Announcement”) unless prior written consent is obtained from Amgen, [***];
provided however, if and to the extent, based on consultation with outside legal counsel,
Nektar is obligated pursuant to Applicable Law or the rules of a securities exchange on which
Nektar is listed (“Applicable Securities Rules”) to make an Announcement or disclose any of the
terms of this Supply Agreement (each a “Mandatory Disclosure”), then, as much in advance of each
such Mandatory Disclosure as practicable, Nektar shall (i) notify Amgen of the proposed content of
the Mandatory Disclosure, (ii) give Amgen reasonable opportunity to review and comment on the
proposed content of the Mandatory Disclosure, and (iii) in good faith, consider and revise the
content of the Mandatory Disclosure based on comments received from Amgen and submit the revised
Mandatory Disclosure to Amgen for review and consent, such consent not to be unreasonably withhold,
delay or conditioned. Nektar shall include in each Mandatory Disclosure only the information
required to be disclosed by Applicable Law or Applicable Securities Rules, and, to the extent
possible, Nektar shall seek confidential treatment of each Mandatory Disclosure.

12.10 Notices. All notices and other communications by a Party to the other Party hereunder shall
be in writing and shall be deemed given if delivered personally or by facsimile transmission
(receipt confirmed by the other Party), mailed by registered or certified mail (return receipt
requested) postage prepaid, or sent by courier service, at the following addresses for such other
Party (or at such other address for a Party as shall be specified by like notice):

     If to Amgen, addressed to:

          [***]

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     With a copy to:

          [***]

     If to Nektar, addressed to:

          [***]

12.11 Amendment. No amendment, modification or supplement of any provision of this Supply
Agreement shall be valid or effective unless made in writing and signed by a duly authorized
representative of Nektar, Amgen Inc. and Amgen Manufacturing, Limited.

12.12 Waiver. No provision of this Supply Agreement shall be waived by any act, omission or
knowledge of a Party or its Affiliates, agents or employees except by an instrument in writing
expressly waiving such provision and signed by a duly authorized officer of the waiving Party.

12.13 Counterparts. This Supply Agreement may be executed in any number of counterparts, each of
which need not contain the signature of more than one Party but all such counterparts taken
together shall constitute one and the same agreement. An executed signature page of this Supply
Agreement delivered by facsimile transmission or by electronic mail in “portable document format”
(“.pdf”) shall be as effective as an original executed signature page.

12.14 Descriptive Headings. The descriptive headings of this Supply Agreement are for convenience
only, and shall be of no force or effect in construing or interpreting any of the provisions of
this Supply Agreement.

12.15 Governing Law. This Supply Agreement shall be governed by and interpreted in accordance with
the substantive laws of the State of California and the Parties hereby submit to the jurisdiction
of the California courts, both state and federal.

12.16 Severability. Whenever possible, each provision of this Supply Agreement will be interpreted
in such manner as to be effective and valid under Applicable Laws, but if any provision of this
Supply Agreement is held to be prohibited by or invalid under Applicable Laws, such provision will
be ineffective only to the extent of such prohibition or invalidity, without invalidating the
remainder of this Supply Agreement. In the event that any one or more of the provisions contained
in this Supply Agreement is held invalid, illegal or unenforceable, the Parties shall negotiate in
good faith with a view to the substitution therefor of a suitable and equitable provision in order
to carry out, so far as may be valid and enforceable, the original intent and purpose of such
invalid

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provision. To the fullest extent permitted by Applicable Law, the Parties waive any provision of
Applicable Law that would render any provision in this Supply Agreement invalid, illegal or
unenforceable in any respect. The provisions of this Supply Agreement shall be liberally construed
in order to carry out the intentions of the Parties hereto as nearly as may be possible.

12.17 Entire Agreement of the Parties. This Supply Agreement constitutes and contains the
complete, final and exclusive understanding and agreement of the Parties and cancels and supersedes
any and all prior negotiations, correspondence, understanding and agreements, whether oral or
written, between the Parties respecting the subject matter thereof.

12.18 Dispute Resolution. As set forth in Exhibit 9, the Parties have designated
representatives from each major functional area related to the Manufacture, Release and Delivery of
Product and supplier relationship management (each a “Representative”). Each Representative shall
be selected based on their expertise and experience in the functional area of expertise identified
in Exhibit 9 that they represent. The initial Representatives are listed in Exhibit
9. A Party may change, at any time and from time to time, any or all of its Representatives
upon prior written notice to the other Party. No Representative, including without limitation by
their actions, decisions, or meeting minutes, shall have the authority to amend or modify the terms
and provisions of this Supply Agreement. Any and all amendments or modifications of this Supply
Agreement may be made only as set forth in Section 12.11. The Parties recognize that a
bona fide dispute as to certain matters related to Manufacturing, Releasing and Delivering the
Product or a Party’s rights or remedies under this Supply Agreement may arise from time to time.
In the event of the occurrence of such a dispute, Representatives from each Party in each area of
expertise relevant to such dispute shall undertake good faith efforts to resolve any such dispute
in good faith. In the event the Representatives shall be unable to resolve any such dispute, a
Representative may, but shall not be obligated to, have such dispute referred to each Party’s
Representative who is the executive sponsor and, after such referral, the executive sponsors shall
undertake good faith efforts to resolve any such dispute in good faith. In the event the dispute
is not resolved by the executive sponsors, then by written notice to the other Party, a Party may,
but shall not be obligated to, have such dispute referred to Amgen’s Senior Vice President of
Manufacturing and, if the dispute is related to business (as opposed to technical) terms of this
Supply Agreement, Amgen’s Vice President, Global Strategic Sourcing & Chief Procurement Officer,
and Nektar’s President for attempted resolution by good faith negotiations within [***], or such
other period as may be agreed to by the Parties, after such written notice is received. On a
dispute-by-dispute basis, each executive sponsor, Amgen’s Senior Vice President of Manufacturing,
Amgen’s Vice President, Global Strategic Sourcing & Chief Procurement Officer, and Nektar’s
President shall be entitled to designate another within

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their company to fulfill their obligations under this Section. Notwithstanding the dispute
resolution escalation path set forth in this Section 12.18, each Party shall have the right
to pursue any and all remedies available at law or in equity.

12.19 Remedies Cumulative. The remedies afforded to each Party under this Supply Agreement are not
exclusive and are in addition to any other rights and remedies available to each Party under this
Supply Agreement or otherwise and any other rights and remedies now or hereafter provided by law or
at equity.

12.20 Independent Contractors. The relationship between Amgen and Nektar created by this Supply
Agreement is one of independent contractors and neither Nektar nor Amgen shall have the power or
authority to bind or obligate the other except as expressly set forth in this Supply Agreement.

12.21 Force Majeure. A Party (the “Affected Party”) shall not be liable to the other Party for
losses or damages under this Supply Agreement, and the other Party shall not have the right to
terminate this Supply Agreement for any default or delay in performance under this Supply Agreement
by the Affected Party, that is directly attributable to a Force Majeure Event provided that
the Affected Party shall (i) have given prompt notice by the most expedient method possible (to be
promptly confirmed in writing) to the other Party of the occurrence of the Force Majeure Event
describing at a reasonable level of detail the circumstances causing the default or delay in
performance, (ii) commence, and continue to take, reasonable and diligent actions to recommence
performance of such obligations or cure such default whenever and to whatever extent possible
following the Force Majeure Event, and (iii) only be excused from such liability, and the other
Party shall only be so restricted from terminating this Supply Agreement for such failure to
perform, for so long as such Force Majeure Event requires prior to recommencement of performance.
In the event of a Force Majeure Event, to the extent that resources available to Nektar are
limited, Nektar shall preferentially allocate such limited resources to Amgen.

12.22 Specific Performance. Each Party hereby acknowledges and agrees that there can be no adequate
or meaningful remedy at law to compensate Amgen for Nektar’s breach of its obligations hereunder;
that any such breach will result in irreparable harm to Amgen that would be difficult to measure
and calculate; and, therefore, that upon any such breach of Nektar’s obligations, Amgen shall be
entitled to specific performance by Nektar without the necessity of proving actual damages or of
posting a bond, and, although Amgen shall not be obligated to seek specific performance by Nektar,
if Amgen seeks and is not granted specific performance, Amgen will be entitled to full remedies
available at law or in equity, which remedies may include without limitation direct, indirect,
special, incidental, exemplary, consequential, lost profits and punitive damages.

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Commission. Confidential Treatment Requested Under

17 C.F.R. Sections 200.80(b)(4) and 240.24b-2

12.23 Equal Opportunity/Affirmative Action. Nektar agrees that it shall perform its obligations
under this Supply Agreement in full compliance the Equal Opportunity Clauses set forth in 41 C.F.R.
§§ 60-1.4(a), 60-250.5(a) and 60-741.5(a) and the employee notice and related obligations found at
29 C.F.R. Part 471, Appendix A to Subpart A, Title VII of the Civil Rights Act of 1964; Sections
(1) and (3) of Executive Order No. 11625 relating to the promotion of Minority Business
Enterprises; Americans with Disabilities Act; Age Discrimination in Employment Act; Fair Labor
Standards Act; Family Medical Leave Act; and all corresponding implementing rules and regulations,
all of which, including without limitation the contract clauses required and regulations
promulgated thereunder, are incorporated herein by reference.

12.24 Consolidation. To the extent feasible, for each notice, request, Order, consent or agreement
specified or provided for hereunder, such notice, request, Order, consent or agreement may be
issued or made by either Amgen Inc. or Amgen Manufacturing, Limited, and each such notice, request,
Order, consent or agreement shall be binding on both Amgen Inc. and Amgen Manufacturing, Limited.
To the extent that Amgen is obligated to make one or more payments to Nektar hereunder, a payment
by Amgen Inc. or Amgen Manufacturing, Limited shall satisfy such payment obligation.

[Signature Page Follows]

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Commission. Confidential Treatment Requested Under

17 C.F.R. Sections 200.80(b)(4) and 240.24b-2

IN WITNESS WHEREOF, the Parties hereto have executed this Supply, Dedicated Suite and Manufacturing
Guarantee Agreement.

	 	 	 	 	 	 	 	 	 

	AMGEN INC.	 	NEKTAR THERAPEUTICS	 	 
	 
	 	 	 	 	 	 	 	 
	Signature:

	 	[***]
 

	 	Signature:
	 	[***]
 

	 	 
	 
	 	 	 	 	 	 	 	 
	Printed Name:
[***]	 	Printed Name: [***]	 	 
	 
	 	 	 	 	 	 	 	 
	Title: [***]	 	Title: [***]	 	 
	 
	 	 	 	 	 	 	 	 
	AMGEN MANUFACTURING, LIMITED	 	 	 	 	 	 
	 
	 	 	 	 	 	 	 	 
	Signature:

	 	[***]
 

	 	 	 	 	 	 
	 
	 	 	 	 	 	 	 	 
	Printed Name: [***]	 	 	 	 	 	 
	 
	 	 	 	 	 	 	 	 
	Title: [***]	 	 	 	 	 	 

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