EXHIBIT 4.4



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EXECUTION COPY

AMENDED AND RESTATED

LICENSE AND COLLABORATION AGREEMENT

by and between

TEKMIRA PHARMACEUTICALS CORPORATION

and

ALNYLAM PHARMACEUTICALS, INC.

Confidential



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AMENDED AND RESTATED

LICENSE AND COLLABORATION AGREEMENT

This AMENDED AND RESTATED LICENSE AND COLLABORATION AGREEMENT, effective as of May 30, 2008, is made by and between Tekmira Pharmaceuticals Corporation (as successor in interest to INEX
Pharmaceuticals Corporation (INEX)), a corporation organized and existing under the laws of British Columbia, Canada (Tekmira), and Alnylam Pharmaceuticals, Inc., a corporation organized and existing under the
laws of Delaware, U.S.A (Alnylam).

RECITALS:

WHEREAS, Alnylam owns or controls certain intellectual property covering fundamental aspects of the structure and uses of
therapeutic products that (a) function through RNA interference (RNAi), including but not limited to compositions and methods of use of Small Interfering RNAs (siRNAs) (defined below), (b) are, or function through the
modulation of, micro RNA transcripts (miRNA) or (c) are Immunostimulatory Oligonucleotide Compositions or IOCs (defined below); and Alnylam is developing capabilities to develop and commercialize such therapeutic products;

WHEREAS, Tekmira owns or controls certain intellectual property covering certain targeted nucleic acid delivery
technology, and is also engaged in the business of discovering, developing, manufacturing and commercializing human therapeutic products, including those mediated by IOCs;

WHEREAS, Alnylam and Tekmira (as successor in interest to INEX) are parties to a License and Collaboration Agreement (the Original Agreement) dated as of January 8, 2007
(the Original Effective Date), under which:

(a) Tekmira granted Alnylam an exclusive license under and to
Tekmiras delivery technology for the research, development, manufacture and commercialization of RNAi and miRNA products formulated with Tekmiras technology for the treatment of diseases in humans;

(b) Alnylam granted Tekmira a license under and to (i) Alnylams core RNAi patent rights for the research, development,
manufacture and commercialization of RNAi products directed to up to three Targets (defined below) for the treatment of diseases in humans, and (ii) Alnylams IOC patent rights for the research, development, manufacture and
commercialization of IOC products for the treatment of diseases in humans; and

(c) Alnylam and Tekmira agreed to collaborate
on the research and development of liposomal formulations for therapeutic products;

WHEREAS, on March 28, 2008,
Tekmira, Protiva Biotherapeutics Inc. (Protiva) and all holders of securities of Protiva entered into a Share Purchase Agreement (the Purchase Agreement) pursuant to which, upon the completion of the
transactions contemplated therein (the Closing), Tekmira will purchase all of the outstanding shares of capital stock of Protiva and Protiva will become a wholly-owned subsidiary of Tekmira;

WHEREAS, following the execution and delivery of the Purchase Agreement, and as a condition to Closing thereunder, Tekmira entered
into a subscription agreement with Alnylam (the



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Alnylam Subscription Agreement) and a subscription agreement with F. Hoffmann-La Roche Ltd (Roche) (the Roche Subscription
Agreement), pursuant to which Alnylam and Roche have each, separately, agreed to purchase certain shares of Tekmiras common stock upon the Closing if certain conditions are met;

WHEREAS, as partial consideration for Alnylams agreement to enter into the Alnylam Subscription Agreement, concurrently with
the Alnylam Subscription Agreement, Alnylam and Tekmira entered into the First Amendment and Partial Termination of Loan and Security Agreement, which terminates the Loan and Security Agreement between Alnylam and Tekmira dated as of the Original
Effective Date in part, and terminates the Negative Pledge Agreement executed in conjunction with such Loan and Security Agreement in its entirety;

WHEREAS, Alnylam and Protiva are parties to a Cross-License Agreement dated as of August 14, 2007 (Original Protiva License Agreement), which as a condition to
Alnylams agreement to enter into this Agreement, is being amended and restated concurrently with this Agreement (as so amended and restated, the Protiva License Agreement);

WHEREAS, following the execution of the Original Protiva License Agreement, Protiva entered into a settlement agreement (the
Merck Settlement Agreement) with Merck & Co. and its affiliated companies (including without limitation Sirna Therapeutics, Inc., whether or not it remains affiliated with Merck & Co.) (collectively, the
Merck Entities) effective as of October 9, 2007, under which, among other things, Protiva granted to the Merck Entities a non-exclusive license to certain intellectual property of Protiva;

WHEREAS, as a condition to the effectiveness of the Alnylam Subscription Agreement, Alnylam has agreed to enter into this Amended
and Restated License and Collaboration Agreement on the terms and conditions contained herein, including but not limited to, the parties agreement to harmonize the license grants from Tekmira to Alnylam with respect to certain Tekmira
intellectual property that is obtained or developed after the expiration of the Restriction Period (defined below) with the license grants from Protiva to Alnylam contained in the Protiva License Agreement; and the parties agreement to
harmonize the royalty and milestone payment obligations of the Parties with the obligations of Protiva and Alnylam contained in the Protiva License Agreement; and

WHEREAS, concurrent with the execution of this Agreement, the parties have entered into an escrow agreement (the Escrow Agreement) pursuant to which the original signature pages to this
Agreement and the fully-executed Protiva License Agreement, among other agreements, shall be placed into escrow and shall be either (i) released from escrow and delivered to the appropriate parties pursuant to the terms of the Escrow Agreement
and, thereafter, this Agreement shall become effective, or (ii) each Partys original signature pages shall be returned to it pursuant to the terms of the Escrow Agreement and this Agreement will never become fully executed, delivered or
effective.



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NOW, THEREFORE, in consideration of the mutual covenants contained herein, and other
good and valuable consideration, the receipt of which is hereby acknowledged, Alnylam and Tekmira agree to this Amended and Restated License and Collaboration Agreement effective as of the Effective Date (subject to the terms of Section 11.1):



|1. | DEFINITIONS
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Unless
specifically set forth to the contrary herein, the following terms, whether used in the singular or plural, shall have the respective meanings set forth below:

1.1 Active Internal Development Program with respect to a particular RNAi Product or miRNA Product, means that the following criteria have been satisfied, as of the relevant time under
this Agreement: (a) an active program of Research, Development, Manufacture or Commercialization with respect to such RNAi Product or miRNA Product has been commenced and remains in effect internally at Alnylam or its Affiliates; and
(b) if such program has not previously established preclinical proof-of-principle for such RNAi Product or miRNA Product, Alnylam or its Affiliates have committed to conduct such program at least through the completion of significant
preclinical proof-of-principle testing of a specific Formulation for such RNAi Product or miRNA Product.

1.2
Affiliatemeans, with respect to a Party, (a) any corporation or business entity of which fifty percent (50%) or more of the securities or other ownership interests representing the equity, the voting stock or general
partnership interest are owned, controlled or held, directly or indirectly, by such Party; (b) any corporation or business entity, which, directly or indirectly, owns, controls or holds fifty percent (50%) (or the maximum ownership
interest permitted by law) or more of the securities or other ownership interests representing the equity, the voting stock or, if applicable, the general partnership interest, of such Party; or (c) any corporation or business entity, fifty
percent (50%) or more of the securities or other ownership interests representing the equity of which is directly or indirectly owned, controlled or held by the same corporation, business entity or security holders, or holders of ownership
interests, that own, control or hold fifty percent (50%) or more of the securities or other ownership interests representing the equity or the voting stock of such Party. Notwithstanding the foregoing, for purposes of the definitions of
Control, Controls, Controlled by, Tekmira Collaboration IP, Tekmira In-Licenses, Tekmira IOC Technology, Tekmira Know-How, Tekmira Patent Rights, Tekmira Technology and Joint Collaboration IP, Protiva shall not be deemed an Affiliate of Tekmira.

1.3 Alnylam Collaboration IP means (a) any improvement, invention, discovery, Know-How or other
Intellectual Property Right, patentable or otherwise, first identified, invented, discovered or developed by employees of Alnylam or its Affiliates or other persons not employed by Tekmira acting on behalf of Alnylam, in the performance of the
Collaboration, the Manufacturing Activities, and/or Alnylams obligations under the Original INEX Agreements, and (b) any Patent Rights in the Territory which claim, cover or relate to such improvements, discoveries or Know-How. Alnylam
Collaboration IP excludes Alnylams interest in Joint Collaboration IP.

1.4 Alnylam Core Patent Rightsmeans those Patent Rights Controlled by Alnylam that are set forth in Schedule 1.4 of this Agreement, as such Schedule is supplemented from time to time pursuant to Section 6.5.1.

1.5 Alnylam Field means the treatment, prophylaxis and diagnosis of diseases in humans using an RNAi Product or miRNA
Product.

1.6 Alnylam IOC Technologymeans (a) Know-How that (i) is useful or necessary to
Research, Develop, Commercialize and/or Manufacture an IOC Product in the Tekmira IOC Field in



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the Territory and (ii) is Controlled by Alnylam on the Original Effective Date (excluding any Alnylam Collaboration IP and Alnylams interest in Joint Collaboration IP) and
(b) those Patent Rights Controlled by Alnylam that are set forth in Schedule 1.6 of this Agreement.

1.7 Alnylam
Lipidoid Patent Rights means those Patent Rights Controlled by Alnylam under a license from the Massachusetts Institute of Technology pursuant to the MIT License Agreement and that are set forth in Schedule 1.7 of this Agreement.

1.8Alnylam Materials means animal models, cell lines, tissue samples, genes, plasmids, siRNAs,
miRNA constructs, vectors, receptors and other proteins, peptides, and other biological materials related to the Alnylam Royalty Products, that in each case are provided by Alnylam to Tekmira for use in the performance of the Collaboration,
including without limitation, the siRNA or miRNA composition comprising an Alnylam Royalty Product.

1.9 Alnylam
Partnered Productmeans an RNAi Product or miRNA Product that is at the relevant time being Researched, Developed, Manufactured and/or Commercialized by Alnylam or its Affiliates with the participation or sponsorship of one or more Third
Parties or, prior to the end of the Restriction Period, Protiva. For clarity, it is understood and agreed that no RNAi Product or miRNA Product developed or to be developed in a project or arrangement in which all or substantially all of
Alnylams or its Affiliates contributions or anticipated contributions are or will be in the form of the grant by Alnylam or its Affiliates of licenses or sublicenses to one or more Intellectual Property Rights, will be considered an
Alnylam Partnered Product.

1.10 Alnylam RNAi Know-How means Know-How that (a) Alnylam determines in
its reasonable judgment to be useful or necessary to Research, Develop, Commercialize and/or Manufacture an Alnylam Royalty Product in the Alnylam Field in the Territory and (b) is either (i) Controlled by Alnylam on the Original Effective
Date, or (ii) comes within Alnylams Control during the Collaboration Term or the Manufacturing Term (excluding any Alnylam Collaboration IP and Alnylams interest in Joint Collaboration IP).

1.11Alnylam RNAi Patent Rights means Patent Rights that (a) claim (i) Alnylam RNAi Know-How, or
(ii) the identification, characterization, optimization, construction, expression, formulation, use or production of an Alnylam Royalty Product, as the case may be, and which Alnylam determines in its reasonable judgment to be useful or
necessary to Research, Develop, Commercialize and/or Manufacture an Alnylam Royalty Product in the Alnylam Field in the Territory, and (b) are Controlled by Alnylam at any time during the Collaboration Term or the Manufacturing Term (including,
without limitation, the Alnylam Core Patent Rights and the Alnylam Lipidoid Patent Rights, but specifically excluding Alnylam IOC Technology and any Patent Rights included in Alnylam Collaboration IP or Alnylams interest in Joint Collaboration
IP).

1.12 Alnylam RNAi Technologymeans, collectively, Alnylam RNAi Know-How and Alnylam RNAi Patent
Rights.

1.13 Alnylam Royalty Product means any RNAi Product or a miRNA Product that, but for the licenses
granted hereunder, would be Covered by one or more Valid Claims of the Tekmira Patent Rights



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1.14 Alnylam Target means any Target that is not a Tekmira Development
Target, the PLK Target, nor a Protiva Development Target (as defined in the Protiva License Agreement); provided, however, that the exclusion of the PLK Target will not apply if Protiva provides notice to Alnylam under the Protiva
License Agreement that Protiva is terminating its license rights under the Protiva License Agreement with respect to RNAi Products or miRNA Products for the PLK Target.

1.15 Biodefense Target means (a) a Target within the genome of one or more Category A, B and C pathogens, as defined by the National Institute of Allergy and Infectious Diseases,
including without limitation, pathogens listed on Schedule 1.15, but specifically excluding influenza virus, or (b) an endogenous cellular Target against which Alnylam Researches, Develops and/or Commercializes an Alnylam Royalty Product for
commercial supply to one or more Funding Authorities.

1.16 Bona Fide Collaboration means a collaboration
between Alnylam and/or its Affiliates and one or more Third Parties involving the Research, Development, Manufacture and/or Commercialization of one or more RNAi Products and/or miRNA Products and established under a written agreement in which
(a) the scope of the licenses granted, and financial or other commitments of value, are of material value to Alnylam and/or its Affiliates, and (b) Alnylam and/or its Affiliates undertakes and performs substantial, mutual research activity
with the Third Party. For purposes of clarity, it is understood and agreed that no collaboration in which all or substantially all of Alnylams or its Affiliates contributions or anticipated contributions are or will be solely in the form
of the grant by Alnylam or its Affiliates of licenses or sublicenses to one or more Intellectual Property Rights, will be considered a Bona Fide Collaboration.

1.17 Business Day means a day on which banking institutions in Boston, Massachusetts and Vancouver, British Columbia, Canada are open for business.

1.18 Calendar Quarter means the respective periods of three (3) consecutive calendar months ending on
March 31, June 30, September 30 and December 31.

1.19 Calendar Year means
each successive period of twelve (12) months commencing on January 1 and ending on December 31.

1.20
cGMPmeans current good manufacturing practices regulations applicable to the Manufacture of a Royalty Product that are promulgated by any Regulatory Authority.

1.21 Change of Control means a Change of Control under and as defined in the Protiva License Agreement without
cross-reference to this Agreement, or any other transaction, or series of related transactions, whereby: (a) Tekmira merges, reorganizes, amalgamates or consolidates with another entity, and the shareholders of Tekmira owning at least fifty
percent (50%) of the outstanding voting securities of Tekmira immediately prior to such transaction(s) own less than fifty percent (50%) of the outstanding voting securities of Tekmira or the surviving entity as a result of such
transaction(s), unless such transaction(s) are a Permitted Financing Merger of Tekmira; (b) Tekmira sells, transfers or otherwise disposes of all or substantially all of its assets to which this Agreement relates; or (c) acquisition by a
Significant Pharmaceutical Company of control of the management and policies of Tekmira; provided, that a Change of Control shall not include (i) the merger, reorganization, amalgamation or consolidation of Protiva with Tekmira after the
end of the Restriction Period, or (ii) the sale or transfer of all or substantially all of the assets of Protiva to which the Protiva License Agreement relates to Tekmira after the end of the Restriction Period.



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1.22 Class 1 Non-Exclusively Licensed Tekmira IP means all of the
following to the extent they comprise Non-Exclusively Licensed Tekmira IP: (a) Generic Claims included in Tekmira Patent Rights, (b) all Know-How, and all Generic Claims included in the Patent Rights, that comprise Tekmira Collaboration
IP, (c) Tekmiras interest in Joint Collaboration IP, and (d) Tekmira Know-How. For clarity, Class 1 Non-Exclusively Licensed IP does not include any Tekmira Technology Controlled by Tekmira prior to the end of the Restriction
Period or any Tekmira Collaboration IP or Tekmiras interest in and Joint Collaboration IP that is first identified, invented discovered or developed prior to the end of the Restriction Period.

1.23 Class 2 Non-Exclusively Licensed Tekmira IP means all of the following to the extent they comprise
Non-Exclusively Licensed Tekmira IP: (a) all claims other than Generic Claims and Target-Specific Claims included in Tekmira Patent Rights and (b) all claims other than Generic Claims included in the Patent Rights that comprise Tekmira
Collaboration IP. For clarity, Class 2 Non-Exclusively Licensed IP does not include any Tekmira Technology Controlled by Tekmira prior to the end of the Restriction Period or any Tekmira Collaboration IP or Tekmiras interest in and
Joint Collaboration IP that is first identified, invented discovered or developed prior to the end of the Restriction Period.

1.24 Collaboration IP means the collective reference to Alnylam Collaboration IP, Tekmira Collaboration IP and Joint
Collaboration IP.

1.25Collaboration Term means the period commencing on [*]. The
Collaboration Term may be extended upon the mutual written agreement of the Parties.

1.26 Combination
Product means a Royalty Product combined with any other clinically active therapeutic, prophylactic or diagnostic ingredient. All references to Royalty Product in this Agreement shall be deemed to include Combination Product, to the extent
applicable.

1.27 Commercialization or Commercialize means any and all activities
directed to marketing, promoting, distributing, importing and selling a Royalty Product and activities directed to obtaining pricing and reimbursement approvals, as applicable.

1.28Commercially Reasonable Efforts means the carrying out of obligations in a diligent and sustained manner
using such effort and employing such resources as would normally be exerted or employed by a similarly situated biopharmaceutical company for a product resulting from its own research efforts of similar market potential, profit potential or
strategic value at a similar stage of its product life.

1.29Confidential Information means any and
all information and data, including without limitation Alnylam RNAi Technology, Alnylam IOC Technology, Tekmira Technology and Tekmira IOC Technology, and all other scientific, pre-clinical, clinical, regulatory, manufacturing, marketing, financial
and commercial information or data, whether communicated in writing or orally or by any other method, which is provided by one Party to the other Party in connection with this Agreement (or under the Original INEX Agreements). Alnylam RNAi
Technology, Alnylam IOC Technology and Alnylam Collaboration IP are Confidential Information of Alnylam. Tekmira IOC Technology, Tekmira Collaboration IP, and Tekmira Technology are Confidential Information of Tekmira. Joint Collaboration IP is the
Confidential Information of the Parties.



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1.30 Contract Year means the twelve (12) month period beginning on
the Original Effective Date and each succeeding twelve (12) month period thereafter during the Agreement Term; provided, that the first and second Contract Years of the Collaboration Term shall be deemed to have begun on [*],
respectively. Each Contract Year shall be divided into four (4) Contract Quarters comprised of successive three (3) month periods.

1.31 Control, Controls or Controlled by means, with respect to any (a) material, know-how or other information or (b) Intellectual Property Right, the
possession of (whether by ownership or license, other than pursuant to this Agreement), or the ability of a Party or its Affiliates to grant access to, or a license or sublicense of, such item or right as provided for herein without violating the
terms of any agreement or other arrangement with any Third Party existing at the time such Party would be required hereunder to grant the other Party such access or license or sublicense. For clarity, the Parties acknowledge that no conceptions,
developments, techniques, data, inventions, improvements, technical information, or works of authorship that were, are, or that hereafter may be in whole or in part conceived, reduced to practice, discovered, created, authored or otherwise made or
obtained by or for Protiva or its contractors at any time since January 18, 2001, will be considered to be Controlled by Tekmira by virtue of any agreement, right, or claim existing or arguably existing prior to the Effective Date.

1.32 Cover, Covering, Covers or Covered means, with respect to a Royalty
Product, that in the absence of an assignment of rights to, or a license granted under, a Valid Claim, the Research, Development, Manufacture or Commercialization of such Royalty Product would infringe such Valid Claim.

1.33 Development, Developingor Developmeans, with respect to a Royalty Product, the
research and development activities related to (a) the generation, characterization, optimization, construction, expression, formulation, use and production of a Royalty Product, and (b) any other research and development activities
related to the clinical testing and qualification of such Royalty Product for clinical testing, and such other tests, studies and activities as may be required or recommended to obtain Regulatory Approval of such Royalty Product, including
toxicology studies, statistical analysis and report writing, pre-clinical testing, clinical studies and regulatory affairs, product approval and registration activities.

1.34 Exclusively Licensed Tekmira IP means any (a) Tekmira Technology that is either (i) Controlled by Tekmira or its Affiliates on the Original Effective Date, or
(ii) first discovered or created by Tekmira or its Affiliates during the Agreement Term but prior to the end of the Restriction Period or otherwise comes within the Control of Tekmira or its Affiliates prior to the Effective Date, and
(b) Tekmira Collaboration IP and Tekmiras interest in Joint Collaboration IP that are first identified, invented, discovered or developed prior to the end of the Restriction Period.

1.35 Existing Alnylam In-Licenses means the Third Party agreements listed on Schedule 1.35.



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1.36Existing Tekmira In-Licenses means the Third Party agreements
listed on Schedule 1.36.

1.37 FDA means the United States Food and Drug Administration and any
successor governmental authority having substantially the same function.

1.38 First Commercial Sale means,
with respect to a Royalty Product, the first sale for end use or consumption of such Royalty Product in a country in the Territory after all required Regulatory Approvals have been granted by the Regulatory Authority of such country. For the
avoidance of doubt, sales for clinical study purposes or compassionate, named patient or similar use, shall not constitute a First Commercial Sale, and sales to a Funding Authority shall constitute a First Commercial Sale.

1.39 Formulation means a particular RNAi Product or miRNA Product delivery formulation, characterized by its
components and its unique ratios among components.

1.40 FTE or Full-Time Equivalent
means with respect to Tekmira, the equivalent of the work of one (1) scientist, full time for one (1) year, for or on behalf of Tekmira, which equates to a total of [*] per year of scientific work performed directly in the Collaboration,
and the direct scientific management thereof. In no event shall the work of one individual person account for more than one (1) FTE year.

1.41 FTE Ratemeans an amount per FTE of work actually performed in the Collaboration under the Research Plan or in Manufacturing Activities under the Manufacturing Plan that is equal
to [*]; provided, however, that during each Contract Year of the Collaboration Term such rate shall apply only to any FTEs engaged in the Collaboration over and above the initial [*] FTEs in such Contract Year. Commencing
with the second Contract Year, the then-current FTE Rate shall be adjusted by the percent change year to year in the Consumer Price Index (All Items) for the Province of British Columbia, Canada as published by Statistics Canada for the period of
each applicable Contract Year.

1.42Funding Authorities means the United States Department of
Health and Human Services or other United States or foreign government or international agencies responsible for requesting, approving and/or funding the development and manufacture of products for biodefense purposes.

1.43 Generic Claim means a claim of a Patent Right that (a) recites a nucleic acid-lipid particle comprising: an
siRNA or miRNA, at least one cationic lipid, at least one non-cationic lipid, and a conjugated lipid that inhibits aggregation of particles, and/or methods or uses of such particle in the delivery of siRNA or miRNA; and (b) does not recite any
Particular Moiety, or any particular or specific cationic lipid, non-cationic lipid, or conjugated lipid.

1.44IND means an Investigational New Drug application, Clinical Study Application, Clinical Trial Exemption, or similar application or submission for approval to conduct human clinical investigations of Royalty Product filed with or
submitted to a Regulatory Authority in conformance with the requirements of such Regulatory Authority.



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1.45 Initiate, Initiatedor Initiationmeans, with respect to a Phase I Study or a Phase II Study, the administration of the first dose to a subject in such study.

1.46 In-Licensesmeans collectively, the Existing Alnylam In-Licenses and the Tekmira In-Licenses, but excludes the Tekmira-UBC License Agreement.

1.47Intellectual Property Rights means all intellectual property rights subject to protection by intellectual
property laws in any country of the world, arising under statutory or common law, contract or otherwise, and whether or not perfected, including without limitation, all (a) Patent Rights; (b) Collaboration IP; (c) rights associated
with works of authorship, including without limitation copyrights, moral rights, copyright applications, copyright registrations; (d) rights associated with trademarks, service marks, trade names, logos, trade dress, goodwill and the
applications for registration and registrations thereof; (e) rights relating to the protection of trade secrets and confidential information; (f) rights analogous to those set forth in this Section and any and all other proprietary rights
relating to intangible property now existing, hereafter filed, issued or acquired.

1.48 InterfeRx License
Transaction means a transaction in which Alnylam (a) grants a sublicense under Tekmira Technology and a Target-specific license under Alnylam Core Patent Rights to a Third Party, but (b) does not have the right to collaborate
with such Third Party to develop RNAi Products against such Target or Targets.

1.49IOC or
Immunostimulatory Oligonucleotide Composition means a single-stranded or double-stranded ribonucleic acid (RNA) composition, or derivative thereof, that has activity solely through an immunostimulatory mechanism
and has no RNAi activity against a human gene transcript or viral genomic sequence.

1.50 IOC Product means
a product containing, comprised of or based on IOCs or IOC derivatives.

1.51 ISIS License Agreement means
the Strategic Collaboration & License Agreement between Isis Pharmaceuticals, Inc., and Alnylam Pharmaceuticals, Inc., dated March 11, 2004, together with Letter Agreements dated March 9, 2004 and March 11, 2004,
respectively, and as amended on June 14, 2005, and as further amended from time to time.

1.52 Joint
Collaboration IP means, collectively, (a) any improvement, discovery or Know-How, patentable or otherwise, first identified, invented, discovered or developed jointly by the Parties or their Affiliates or others acting on behalf of
Tekmira and Alnylam in the performance of the Collaboration, the Manufacturing Activities and/or the obligations of the Parties under the Original INEX Agreements, and (b) any Patent Rights in the Territory which claim, cover or relate to such
improvements, discoveries or Know-How.

1.53 Joint Research Committee or JRCmeans the
joint research committee as more fully described in Article 4.

1.54 Know-Howmeans, with respect to a
Royalty Product, all biological materials and other tangible materials, inventions, practices, methods, protocols, formulas, formulations, knowledge, know-how, trade secrets, processes, assays, skills, experience, techniques and results of



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experimentation and testing, including without limitation pharmacological, toxicological and pre-clinical and clinical test data and analytical and quality control data, patentable or otherwise,
which relates to the identification, characterization, optimization, construction, expression, formulation, use or production of such Royalty Product and which are reasonably useful or necessary to Research, Develop, Manufacture or Commercialize
such Royalty Product in the Territory in (a) the Alnylam Field, in the case of Alnylam Royalty Products and Tekmira Development Products or (b) the Tekmira IOC Field, in the case of Tekmira IOC Products.

1.55 Lead Formulation means a Formulation that has been identified by Tekmira and Alnylam as being the end product of
Tekmiras and Alnylams work under the Research Plan for a particular Alnylam siRNA or miRNA payload(s) directed at a particular Target. It is expected that formulated materials using a number of different initial Formulations would be
delivered by Tekmira to Alnylam, tested by Alnylam, and (on the basis of such tests, and subsequent iterative tests if needed) culled or otherwise adjusted by Tekmira to the point where both parties believe that no further formulation adjustments,
or improvements are anticipated under the Research Plan. That Formulation is the Lead Formulation in that situation.

1.56
Loan Agreement means that certain Loan and Security Agreement between the Parties dated the Original Effective Date, as amended by the First Amendment and Partial Termination of Loan and Security Agreement between the Parties dated
March 28, 2008.

1.57Major Market means any of the United States, the European Union, United
Kingdom, France, Germany, Italy, Spain or Japan.

1.58 Manufacturingor Manufacturemeans, with respect to a Royalty Product, all activities associated with the production, manufacture and processing of such Royalty Product, and the filling, finishing, packaging, labeling, shipping, and storage of such Royalty Product,
including without limitation formulation process scale-up for toxicology and clinical study use, aseptic fill and finish, stability testing, analytical development, quality assurance and quality control, and in the case of the Manufacturing of
Alnylam Royalty Products by Tekmira, the production of the bulk finished dosage form of Alnylam Royalty Product from the RNAi or miRNA construct.

1.59 Manufacturing Activities of a Party means those activities performed by such Party under the Manufacturing Plan, the Supply Agreement, and/or the Quality Agreements relating to the
Manufacture and supply of Alnylam Royalty Products.

1.60Manufacturing Plan means the detailed
written plan of work for the Manufacture of the bulk finished dosage form of Alnylam Royalty Products for Alnylam by Tekmira pursuant to Section 5.1 for any given Contract Year of the Agreement Term, as such plan is approved and updated by the
JRC as necessary pursuant to Section 4.1. The updated Manufacturing Plan for calendar year 2008 is attached to this Agreement as Schedule 5.1. The Manufacturing Plan shall be further updated pursuant to Section 5.1(b).

1.61 Manufacturing Term means the period commencing on the Original Effective Date and continuing through the end of
the Agreement Term, unless the Manufacturing Activities are terminated earlier in accordance with the terms of this Agreement, including without limitation, Section 11.6.



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1.62 miRNA Product means a product containing, comprised of or based on
native or chemically modified RNA oligomers designed to either modulate an miRNA and/or provide the function of an miRNA.

1.63 MIT License Agreement means the Amended and Restated Exclusive Patent License Agreement effective as of
May 9, 2007 between the Massachusetts Institute of Technology and Alnylam, as further amended from time to time.

1.64
NDA means a New Drug Application, Biologics License Application, Worldwide Marketing Application, Marketing Authorization Application, Section 510(k) filing or similar application or submission filed with a Regulatory Authority
in a country or group of countries to obtain marketing approval for a biological, pharmaceutical or other therapeutic, prophylactic or diagnostic product in that country or in that group of countries.

1.65Necessary Third Party IP means, with respect to any country in the Territory, on a country-by-country
basis, Know-How or Patent Rights in such country owned or controlled by a Third Party that Cover a Royalty Product, it being understood and agreed that for this purpose, no Know-How or Patent Rights controlled by Protiva and licensed to Alnylam
under the Protiva License Agreement will be considered Necessary Third Party IP.

1.66 Net Sales means,
with respect to a Royalty Product, the aggregate gross invoice prices of all units of such Royalty Product sold by a Party and its Related Parties to Third Parties (other than a Sublicensee of such Party) after deducting, if not previously deducted,
from the amount invoiced or received (a) trade and quantity discounts actually given, including early-pay cash discounts; (b) returns, rebates, chargebacks and other allowances actually given; (c) retroactive price reductions that are
actually granted; and (d) bad debts, sales or excise taxes, transportation and insurance, custom duties, and other governmental charges actually incurred or accounted for in accordance with generally accepted accounting principles in the United
States or Canada, if applicable, consistently applied by the applicable Party

With respect to sales of Combination Products, Net Sales shall
be calculated on the basis of the gross invoice price of the Royalty Product(s) containing the same composition and concentration of Royalty Product sold without other clinically active ingredients. In the event that the Royalty Product is sold only
as a Combination Product and not sold without other clinically active ingredients, the Parties shall negotiate in good faith another basis on which to calculate Net Sales with respect to the Combination Product that fairly reflects the value of the
Royalty Product relative to the other clinically active ingredients in the Combination Product.

A percentage of the deductions set forth in
clauses (a) through (d) above equal to the ratio of the Net Sales for the Royalty Product to the Net Sales of the Combination Product will be applied in calculating Net Sales for a Combination Product.

1.67 Non-Exclusively Licensed Tekmira IP means all Tekmira Technology, Tekmira Collaboration IP and Tekmiras
interest in Joint Collaboration IP, other than the Exclusively Licensed Tekmira IP.

1.68Novartis
Agreement means the Research Collaboration and License Agreement between Novartis Institutes for BioMedical Research, Inc. (Novartis) and Alnylam Pharmaceuticals,



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Inc. dated October 12, 2005, as amended by the Addendum Re: Influenza Program to Research Collaboration and License Agreement effective as of February 17, 2006, and as further amended
from time to time.

1.69 Original INEX Agreements means (i) the Original Agreement and (ii) the
Evaluation Agreement among Alnylam, Tekmira and INEX dated March 25, 2006, the Letter Agreement among Alnylam, Tekmira and INEX dated March 25, 2006, as each of the Evaluation Agreement and Letter Agreement were amended by the Letter
Agreement among Alnylam, Tekmira and INEX dated July 13, 2006.

1.70 Particular Moiety means a
specific nucleotide sequence of an RNAi Product or miRNA Product, in either case directed against a particular Target.

1.71 Party means Tekmira and/or Alnylam.

1.72 Patent Rights means all patents (including all reissues, extensions, substitutions, confirmations, re-registrations, re-examinations, invalidations, supplementary protection
certificates and patents of addition) and patent applications (including all provisional applications, continuations, continuations-in-part and divisionals).

1.73 Permitted Financing Merger means any transaction, or series of related transactions, whereby Tekmira merges, reorganizes, amalgamates or consolidates with another entity, and the
shareholders of Tekmira owning at least fifty percent (50%) of the outstanding voting securities of Tekmira immediately prior to such transaction(s) own less than fifty percent (50%) of the outstanding voting securities of Tekmira or the
surviving entity as a result of such transaction(s), but where: (a) the business of Tekmira immediately prior to such transaction(s) is the primary business of Tekmira or the surviving entity immediately after such transaction(s);
(b) members of the Board of Directors of Tekmira immediately prior to such transaction(s) comprise more than 50% of the Board of Directors of Tekmira or the surviving entity immediately after such transaction(s) and for the subsequent twelve
(12) months; and (c) the chief executive officer and chief financial officer of Tekmira immediately prior to such transaction(s) remain the chief executive officer and chief financial officer of Tekmira or the surviving entity immediately
after such transaction(s) and for the subsequent twelve (12) months.

1.74 Person means and includes
any individual, corporation, partnership, firm, joint venture, syndicate, association, trust, government body, and any other form of entity or organization.

1.75 Phase I Study means a clinical study of an Alnylam Royalty Product in human volunteers or patients the purpose of which is preliminary determination of safety and tolerability of a
dosing regime and for which there are no primary endpoints (as understood by the FDA or other Regulatory Authorities) in the protocol relating to efficacy.

1.76 Phase II Studymeans (a) a dose exploration, dose response, duration of effect, kinetics, dynamic relationship or preliminary efficacy and safety study of an Alnylam Royalty
Product in the target patient population or (b) a controlled dose-ranging clinical trial to evaluate further the efficacy and safety of an Alnylam Royalty Product in the target patient population and to define the optimal dosing regimen.



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1.77 Phase III Studymeans a controlled pivotal clinical study of an
Alnylam Royalty Product that is prospectively designed to demonstrate statistically whether such Alnylam Royalty Product is effective and safe for use in a particular indication in a manner sufficient to obtain Regulatory Approval to market such
Alnylam Royalty Product.

1.78 Pre-Existing Alnylam Alliance Agreements means the agreements set forth in
Schedule 1.78.

1.79 Product Trademarksmeans the trademark(s), service mark(s), accompanying logos, trade
dress and/or indicia of origin used in connection with the distribution, marketing, promotion and sale of Royalty Products in the Territory. For purposes of clarity, the term Product Trademark(s) shall not include, without limitation, the corporate
names and logos of either Party, and shall include any internet domain names incorporating such Product Trademarks.

1.80Quality Agreement means an agreement or agreements to be entered into between the Parties containing quality assurance provisions for the Manufacture by Tekmira, its permitted Affiliates or their respective permitted
subcontractors, for Alnylam, of the finished dosage form of Alnylam Royalty Products pursuant to the Manufacturing Plan.

1.81 Regulatory Approval means any and all approvals, licenses, registrations or authorizations of any Regulatory
Authority, necessary for the Commercialization of a Royalty Product, including the approval of NDAs.

1.82 Regulatory
Authority means any applicable government regulatory authority involved in granting approvals for the Research, Development, Manufacturing, Commercialization, reimbursement and/or pricing of a Royalty Product in the Territory, including
without limitation the FDA.

1.83 Related Party means a Partys Affiliates and permitted Sublicensees,
which term does not include wholesale distributors of the Party or its Affiliates who purchase Royalty Products from such Party or its Affiliates in an arms -length transaction and who have no other obligation, including without limitation a
reporting obligation, to such Party or its Affiliates.

1.84 Research or Researching
means identifying, evaluating, validating and optimizing RNAi Products (and/or miRNA Products in the case of Alnylam).

1.85 Research Plan means the detailed written plan of work for the Collaboration for a given Contract Year of the
Collaboration Term, as approved and updated by the Joint Research Committee as necessary during the Collaboration Term pursuant to Sections 3.1.1 and 4.1.

1.86 Research Program Productmeans the Formulations that are related to RNAi Product(s) and/or miRNA Product(s) developed under the Research Plan under this Agreement and/or under the
R&D Research Plan (as defined in the Protiva License Agreement) for which Alnylam or its Affiliate has established an Active Internal Development Program.

1.87 RNAi Product means a product containing, comprised of or based on siRNAs or siRNA derivatives or other double-stranded moieties effective in gene function modulation and



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designed to modulate the function of particular genes or gene products by causing degradation through RNA interference of a Target mRNA to which such siRNAs or siRNA derivatives or moieties are
complementary.

1.88Royalty Payor means, in relation to (a) an Alnylam Royalty Product,
Alnylam, and (b) a Tekmira Royalty Product, Tekmira.

1.89 Royalty Product means, either (a) an
Alnylam Royalty Product, or (b) a Tekmira Royalty Product.

1.90Royalty Recipient means, in
relation to (a) an Alnylam Royalty Product, Tekmira, and (b) a Tekmira Royalty Product, Alnylam.

1.91Selection Term means the period commencing on the Original Effective Date and continuing for five (5) Contract Years of the Agreement Term thereafter, unless such period is extended pursuant to the terms of
Section 2.2.

1.92Significant Pharmaceutical Company means a pharmaceutical company,
biotechnology company, or group of such companies acting in concert, with annual sales of human pharmaceutical products greater than three (3) billion U.S. dollars ($3,000,000,000).

1.93 Small Interfering RNA or siRNAmeans a double-stranded ribonucleic acid (RNA) composition
designed to act primarily through an RNA interference mechanism that consists of either (a) two separate oligomers of native or chemically modified RNA that are hybridized to one another along a substantial portion of their lengths, or
(b) a single oligomer of native or chemically modified RNA that is hybridized to itself by self-complementary base-pairing along a substantial portion of its length to form a hairpin.

1.94 Sublicenseemeans a Third Party to whom a Party grants a sublicense permitted under this Agreement under any
Alnylam RNAi Technology, Alnylam IOC Technology, Alnylam Lipidoid Patent Rights, Tekmira Technology, Tekmira IOC Technology (to the extent permitted for purposes of the Collaboration only) or Collaboration IP (or a license in the case of Joint
Collaboration IP), as the case may be, to Research, Develop, Manufacture or Commercialize a Royalty Product in the Territory and in (a) the Alnylam Field, in the case of Alnylam Royalty Products and Tekmira Development Products or (b) the
Tekmira IOC Field, in the case of Tekmira IOC Products, in each case subject to Sections 6.1.1(b) or 6.2, or otherwise grants rights to distribute, promote or sell a Royalty Product.

1.95Supply Agreement means that certain Manufacturing and Supply Agreement between the Parties dated
February 7, 2007.

1.96Target means: (a) a polypeptide or entity comprising a combination
of at least one polypeptide and other macromolecules, that is a site or potential site of therapeutic intervention by a therapeutic agent; or a nucleic acid which is required for expression of such polypeptide; (b) variants of a polypeptide,
cellular entity or nucleic acid described in clause (a); (c) a defined non-peptide entity, including a microorganism, virus, bacterium or single cell parasite; provided that the entire genome of a virus shall be regarded as a single
Target; or (d) a naturally occurring interfering RNA or miRNA or precursor thereof.



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1.97Target-Specific Claim means a claim in an issued or pending
patent that recites one or more specified Particular Moiety(ies).

1.98 Tax Convention means the Canada-US
Tax Convention (1980), as amended.

1.99 Tekmirameans Tekmira Pharmaceuticals Corporation.

1.100 Tekmira Collaboration IP means (a) any improvement, invention, discovery, Know-How or other Intellectual
Property Right, patentable or otherwise, first identified, invented, discovered or developed by employees of Tekmira or its Affiliates or other persons (other than Protiva) not employed by Alnylam acting on behalf of Tekmira, in the performance of
the Collaboration, the Manufacturing Activities, and/or Tekmiras obligations under the Original INEX Agreements, and (b) any Patent Rights in the Territory which claim, cover or relate to such improvements, discoveries or Know-How.
Tekmira Collaboration IP excludes Tekmiras interest in Joint Collaboration IP.

1.101 Tekmira
In-License means an agreement between Tekmira or its Affiliates, and a Third Party, pursuant to which Tekmira or any of its Affiliates Control(s) Tekmira Technology relating to the Alnylam Field under a license or sublicense from such
Third Party, including without limitation, the Existing Tekmira In-Licenses.

1.102 Tekmira IOC Field means
the treatment, prophylaxis and diagnosis of diseases in humans using an IOC Product.

1.103 Tekmira IOC
Technology means (a) Know-How and other Intellectual Property Rights with respect to IOC Products and/or IOCs that are either (i) Controlled by Tekmira or its Affiliates on the Original Effective Date, or (ii) come within
the Control of Tekmira or its Affiliates after the Original Effective Date, and (b) Patent Rights that (i) claim (x) such Know-How or other Intellectual Property Rights, or (y) the identification, characterization, optimization,
construction, expression, formulation, delivery, use or production of an IOC Product and/or IOC, and that are useful or necessary to Research, Develop, Commercialize and/or Manufacture IOC Products in the Tekmira IOC Field in the Territory, and
(ii) are Controlled by Tekmira or its Affiliates.

1.104 Tekmira Know-Howmeans Know-How with respect
to an RNAi Product or miRNA Product (excluding any Tekmira Collaboration IP, Tekmiras interest in Joint Collaboration IP and any such Know-How sublicensed to Alnylam pursuant to the UBC Sublicense) that (a) is Controlled by Tekmira or its
Affiliates on the Original Effective Date, or (b) comes within the Control of Tekmira or its Affiliates following the Original Effective Date.

1.105 Tekmira Patent Rightsmeans Patent Rights that (a) claim (i) Tekmira Know-How, or (ii) the identification, characterization, optimization, construction, expression,
formulation, delivery, use or production of an RNAi Product or miRNA Product, and that are useful or necessary to Research, Develop, Commercialize and/or Manufacture RNAi Products or miRNA Products in the Alnylam Field in the Territory, and
(b) are Controlled by Tekmira or its Affiliates at any time during the Agreement Term(excluding any Patent Rights included in Tekmira Collaboration IP, Tekmiras interest in Joint Collaboration IP and any such Patent Rights licensed to
Alnylam pursuant to the UBC Sublicense).



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1.106Tekmira Royalty Product means any (a) Tekmira
Development Product that, but for the licenses granted hereunder, would be Covered by one or more Valid Claims under the Alnylam Core Patent Rights or the Alnylam Lipidoid Patent Rights, or (b) IOC Product that but for the licenses granted
hereunder, would be Covered by one or more Valid Claims under the Alnylam IOC Technology.

1.107 Tekmira
Technologymeans, collectively, Tekmira Know-How and Tekmira Patent Rights.

1.108 Tekmira-UBC License
Agreement means that certain license agreement between Tekmira and the University of British Columbia (UBC) dated effective July 1, 1998, as amended by Amendment Agreement between Tekmira and UBC dated effective
July 11, 2006, and Second Amendment Agreement dated effective the Original Effective Date.

1.109
Territory means all of the countries in the world, and their territories and possessions.

1.110
Third Party means an entity other than a Party and its Affiliates.

1.111Third Party Liposome
Patent Rights means with respect to an Alnylam Royalty Product, (a) the Alnylam Lipidoid Patent Rights and/or (b) other technology comprising a lipid component or liposomal formulation useful or necessary for the Research,
Development, Manufacture or Commercialization of such Alnylam Royalty Product and Controlled by Alnylam under a license from a Third Party, and in each case with respect to which Intellectual Property Rights Alnylam has granted to Tekmira a
non-exclusive, royalty- and milestone fee-bearing (on a pass-through basis) license to Research, Develop, Manufacture and Commercialize Tekmira Royalty Products in the Alnylam Field in the case of Tekmira Development Product, and in the Tekmira IOC
Field in the case of IOC Products.

1.112 Transaction Documents means the Alnylam Subscription Agreement,
the Supply Agreement, the Quality Agreements, the Tekmira-UBC License Agreement, the UBC Sublicense Documents, the Loan Agreement, all letter agreements and other documents executed by the Parties on or about the Original Effective Date in
connection with the Original Agreement, and any other documents or agreements that are executed by the Parties after the Original Effective Date as contemplated by this Agreement.

1.113 UBC Sublicense Documents means the collective reference to (a) the Sublicense Agreement dated as of the
Original Effective Date between the Parties (the UBC Sublicense), (b) the Consent and Agreement dated as of the Original Effective Date among the Parties and UBC, and (c) the Assignment dated the Original Effective Date
between Tekmira and UBC.

1.114Valid Claim means a claim of: (a) an issued and unexpired
Patent Right, which claim has not been revoked or held unenforceable, unpatentable or invalid by a decision of a court or other governmental agency of competent jurisdiction that is not appealable or has not been appealed within the time allowed for
appeal, and which has not been abandoned, disclaimed, denied or admitted to be invalid or unenforceable through reissue, re-examination or disclaimer or otherwise, or (b) a patent application for a patent included within the Patent Rights a
claim of which has been pending less than five (5) years and which claim has not been cancelled, withdrawn or abandoned or finally rejected by an administrative agency action from which no appeal can be taken.



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1.115 Additional Definitions.The following terms have the meanings set forth in the
corresponding Sections of this Agreement:



|                                     |  |             
|------------------------------------ |  | ------------
|Term                                 |  | Section     
|AAA                                |  | 12.6.1      
|Agreement Term                     |  | 11.1        
|Alnylam Class 1 Royalty Products   |  | 6.1.1(b)(i) 
|Alnylam Class 2 Royalty Products   |  | 6.1.1(b)(ii)
|Alnylam Data                       |  | 3.2(e)      
|Alnylam Indemnitees                |  | 9.5.1       
|Alnylam Subscription Agreement     |  | Recitals    
|Bankrupt Party                     |  | 11.3        
|Breaching Party                    |  | 11.2.1(a)   
|Code                               |  | 11.3        
|Collaboration                      |  | 3.1.1       
|Condition Satisfaction Date        |  | 11.1        
|Closing                            |  | Recitals    
|CRT Agreement                      |  | 6.5.1       
|Dispute                            |  | 12.6.1      
|Effective Date                     |  | 11.1        
|Equipment
Escrow Agreement       |  | 3.4Recitals 
|Excluded Claim                     |  | 12.6.1      
|Follow-On Product                  |  | 7.2(d)      
|FTO Notice                         |  | 6.9(a)      
|Indemnitee                         |  | 9.5.3       
|INEX                               |  | Preamble    
|Infringement Claim                 |  | 10.4.1      
|Losses                             |  | 9.5.1       
|Manufacturing Activities Committee |  | 4.1         
|Merck Entities                     |  | Recitals    
|Merck Restriction                  |  | 6.2.3       
|Merck Settlement Agreement         |  | Recitals    
|miRNA                              |  | Preamble    
|More Favorable Terms               |  | 6.9(a)(ii)  
|Non-Bankrupt Party                 |  | 11.3        
|Non-Breaching Party                |  | 11.2.1(a)   
|Novartis                           |  | 1.68        
|Opportunity Response Period        |  | 6.9(b)(i)   
|Original Agreement                 |  | Recitals    
|Original Effective Date            |  | Recitals    
|Original Protiva License Agreement |  | Recitals    
|Permitted Investor                 |  | 12.17.1(c)  
|Platform License                   |  | 6.9(a)      



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|                                       |  |          
|-------------------------------------- |  | ---------
|Term                                   |  | Section  
|Post-IND Opportunity Response Period |  | 6.9(b)(i)
|Product Notice                       |  | 6.9(b)   
|Project Manager                      |  | 4.1      
|Prosecuting Party                    |  | 10.2.4(e)
|Protiva                              |  | Recitals 
|Protiva License Agreement            |  | Recitals 
|Purchase Agreement                   |  | Recitals 
|Region                               |  | 11.2.2   
|Responsible Party                    |  | 10.4.3   
|Restricted Joint Invention           |  | 3.7.4    
|Restriction Period                   |  | 3.7.1    
|RNAi                                 |  | Preamble 
|Roche                                |  | Recitals 
|Roche-Nutley                         |  | 6.2.2(c) 
|Roche Sublicensees                   |  | 6.2.2(c) 
|Roche Subscription Agreement         |  | Recitals 
|Shares                               |  | 7.1      
|SPC                                  |  | 10.7     
|Stanford Agreement                   |  | 6.5.1    
|Successful Product                   |  | 7.2(d)   
|Target Response Notice               |  | 2.2      
|Tekmira Development Product          |  | 2.1      
|Tekmira Development Target           |  | 2.1      
|Tekmira Facilities Option            |  | 3.7.2    
|Tekmira Indemnitees                  |  | 9.5.2    
|Tekmira In-License Provisions        |  | 6.4(a)   
|Tekmira IOC Product                  |  | 6.9(b)(i)
|Tekmira Patent                       |  | 11.5(a)  
|UBC                                  |  | 1.108    
|UBC Sublicense                       |  | 1.113    



|2. | TEKMIRA DEVELOPMENT TARGETS.
|-- | ----------------------------

2.1 Tekmira Development Targets. During the Selection Term, and subject to the terms and conditions of this Agreement and Alnylams right to grant rights thereto at the time of
selection, Tekmira may select up to three (3) Targets with respect to which Tekmira shall Research, Develop, Manufacture and Commercialize RNAi Products directed to such Target under its license to the Alnylam Core Patent Rights and Alnylam
Lipidoid Patent Rights pursuant to Section 6.1.2(a) (each such Target, a Tekmira Development Target, and each such RNAi Product, a Tekmira Development Product). For clarity, the Parties acknowledge that the
three (3) Tekmira Development Targets shall be in addition to the PLK Target and the three Protiva Development Targets that are among the subjects of the Protiva License Agreement. The Parties acknowledge that the selection of each Tekmira
Development Target is subject to Novartis right of first offer under the Novartis Agreement and to other Alnylam obligations to Third Parties.

2.2 Selection Process. The following process shall apply to the selection of Tekmira Development Targets. Tekmira shall initially notify Alnylam in writing of the NCBI Gene ID number



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(or, if a NCBI Gene ID number is not available, the specific sequence of the proposed Target) of each Target nominated by Tekmira for selection as a Tekmira Development Target. Prior to
nominating a Target to Alnylam, Tekmira shall possess bona fide data regarding the validation of such Target for potential therapeutic modulation by siRNAs. Within [*] following Alnylams receipt of a notice nominating a Target, Alnylam
shall notify Tekmira in writing (a Target Response Notice) whether such Target is either: (a) subject to a contractual obligation to a Third Party that would be breached by the inclusion of such Target as a Tekmira
Development Target under this Agreement, or (b) determined by Alnylam after its review in good faith of its ongoing or planned scientific and/or business activities and strategy to be a Target of interest to Alnylam. If neither of these
criteria apply, the Target shall be considered to have been successfully nominated as a Tekmira Development Target. Alnylam shall use Commercially Reasonable Efforts consistent with the terms of the Novartis Agreement to obtain Novartis
consent to the selection by Tekmira of such Target as a Tekmira Development Target under this Agreement, and shall notify Tekmira in writing as to whether or not such Target is available for license hereunder. If a Target submitted to Alnylam is not
so available for license as a Tekmira Development Target, then Tekmira may nominate an additional Target as a Tekmira Development Target, until an aggregate of three (3) Tekmira Development Targets have been identified and approved for
selection pursuant to the foregoing procedure; provided, that Tekmira may not submit more than three (3) proposed Targets (in addition to any Protiva Development Targets or candidate Protiva Development Targets submitted under the
Protiva License Agreement) to Alnylam for evaluation pursuant to the foregoing procedure in any single Calendar Quarter. Any Target approved for selection pursuant to the foregoing procedure shall be a Tekmira Development Target. If upon the
expiration of the Selection Term all three (3) Tekmira Development Targets have not been approved for selection pursuant to the foregoing procedure, then the Selection Term shall be extended until the earlier of (i) the date on which an
aggregate of three (3) Tekmira Development Targets have been so identified and approved for selection and (ii) the [*] anniversary of the Original Effective Date. For clarity, notwithstanding the number of Targets evaluated by
Alnylam for availability for selection as a Tekmira Development Target, Tekmira shall not be entitled to more than three (3) Tekmira Development Targets.



|3. | COLLABORATION
|-- | -------------

3.1
Collaboration.

3.1.1Collaboration and Research Plan. During the Collaboration Term Alnylam and
Tekmira shall use Commercially Reasonable Efforts to collaborate in the research, development and process (and analytical methods) development of liposomal formulations of RNAi Products, miRNA Products and IOC Products, as specifically set forth in
the Research Plan (such activities, are referred to as the Collaboration). The JRC has agreed upon a detailed Research Plan for the Collaboration for the full twelve-months of the first Contract Year of the Collaboration Term.
Attached to this Agreement as Schedule 3.1 is an updated Research Plan for the second Contract Year of the Collaboration Term, which Research Plan shall be updated quarterly by the JRC during the remainder of the Collaboration Term. The Parties
shall update, and the JRC shall approve in accordance with Section 4.1, updates to the Research Plan for each Contract Year thereafter (if any) during the Collaboration Term.

3.1.2FTEs and Collaboration Funding. Tekmira agrees to provide up to [*] FTEs in each Contract Year of the
Collaboration Term to perform its obligations under the Collaboration as provided in the Research Plan. The use of additional FTEs will be subject to approval by the JRC. Alnylam shall fund the Collaboration in accordance with Section 7.5.1.



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3.2 Information Exchange. Subject to and in accordance with the provisions of
Article 6, as set forth below:

(a) Within three (3) months after the Effective Date and on an ongoing basis during the
Agreement Term Tekmira shall disclose to Alnylam all Tekmira Technology that is Controlled by Tekmira or its Affiliates as of the Original Effective Date and/or during the Agreement Term, and all Collaboration IP that, in each case, has not been
previously disclosed, and shall update such disclosure at least once each Calendar Quarter;

(b) During the Collaboration
Term, through the JRC, Tekmira shall disclose to Alnylam Tekmira IOC Technology Controlled by Tekmira on the Original Effective Date and/or during the Collaboration Term, as and to the extent Tekmira determines, in its reasonable judgment, that such
Tekmira IOC Technology is necessary or useful for Alnylams performance of its obligations under the Collaboration with respect to IOC Products;

(c) During the Collaboration Term, through the JRC, Alnylam shall disclose to Tekmira (i) all Alnylam IOC Technology, Alnylam Collaboration IP and Joint Collaboration IP that, in each case, has not
been previously disclosed, and shall update such disclosure at least once each Calendar Quarter with regard to Alnylam Collaboration IP and Joint Collaboration IP;

(d) During the Collaboration Term, through the JRC, Alnylam shall disclose to Tekmira Alnylam RNAi Technology as and to the extent Alnylam determines, in its reasonable judgment, that such Alnylam RNAi
Technology is necessary or useful for Tekmiras performance of its obligations under the Collaboration and Manufacturing Activities with respect to Alnylam Royalty Products;

(e) Promptly after the Effective Date and on an ongoing and timely basis thereafter during the Research Term, Alnylam shall (unless
otherwise requested by Tekmira in any instance or instances) disclose to Tekmira data generated by Alnylam using any of the materials or chemical compounds provided by Tekmira to Alnylam for use in furtherance of the conduct of the Collaboration
(Alnylam Data); and

(f) Each Party shall make available its employees, consultants and subcontractors
engaged in the performance of its obligations under the Collaboration and/or the Manufacturing Activities upon reasonable notice during normal business hours to consult with the other Party with respect to the Collaboration and/or the Manufacturing
Activities, as coordinated through the Project Managers or such other individual of a Party as may be designated by such Party and consistent with the resource requirements specified in the Research Plan and/or the Manufacturing Plan.

3.3 Alnylam Materials for Collaboration. Unless the Parties otherwise agree in writing, Tekmira will supply, in accordance
with the relevant approved raw material specifications, all materials to be used by Tekmira in the performance of its obligations under the Collaboration other than the Alnylam Materials listed in the Research Plan. Alnylam or its designees will
provide Tekmira with the Alnylam Materials listed in the Research Plan. Except as explicitly authorized in writing by Alnylam, all Alnylam Materials delivered to Tekmira shall remain the sole property of



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Alnylam. Tekmira agrees (a) to account for all Alnylam Materials, (b) not to provide Alnylam Materials to any Third Party (other than to subcontractors of Tekmira permitted under
Section 3.5) without the express prior written consent of Alnylam, (c) not to use Alnylam Materials for any purpose other than performing its obligations under the Collaboration, including, without limitation, not to analyze, characterize,
modify or reverse engineer any Alnylam Materials or take any action to determine the structure or composition of any Alnylam Materials unless required to perform its obligations under the Collaboration, and (d) to destroy or return to Alnylam
all unused quantities of Alnylam Materials according to Alnylams written directions. The Alnylam Materials supplied for use in the Collaboration must be used with prudence and appropriate caution in any experimental work, since not all their
characteristics may be known; however, Alnylam shall notify Tekmira of any health hazards of which it is or becomes aware relating to the use or handling of the Alnylam Materials.

3.4 Alnylam Equipment for Collaboration. Unless otherwise agreed by the Parties in writing, Tekmira will supply all
equipment and machinery necessary to perform its obligations under the Collaboration (Equipment). If Alnylam or its designees provide Tekmira with Equipment, (a) such Equipment will not be used by Tekmira except in
performance of its obligations under the Collaboration under this Agreement, (b) title to such Equipment will remain with Alnylam, (c) Tekmira will ensure that such Equipment is properly labeled as Alnylam property and remains free and
clear of any liens or encumbrances, (d) Tekmira will install the Equipment in a manner which will permit its removal without material injury to the place of installation and (e) the Equipment shall be installed at Tekmiras or
Protivas facility located in British Columbia, Canada, and shall be maintained and used at such and not elsewhere without the prior written consent of Alnylam. At Alnylams written request, such Equipment will be returned to Alnylam, or
to Alnylams designee. Tekmira will be responsible, at its own cost, for maintenance of such Equipment; provided, however, that Alnylam shall be responsible for: (i) ensuring all Equipment provided by Alnylam is in good
working order at the time of delivery to Tekmira, and (ii) unless otherwise agreed by the Parties, performing equipment qualification and calibration prior to either Partys use of such Equipment at Tekmiras premises. Tekmira shall
not be required to purchase spare parts for the Equipment. To the extent Alnylam provides spare parts for such Equipment, such spare parts will remain the property of Alnylam and will be used by Tekmira only for maintenance of such Equipment.
Tekmira will immediately notify Alnylam if at any time it believes any such Equipment has been damaged, lost or stolen.

3.5 Subcontractors and Third Party Research Collaborations. (a) Tekmira may utilize the services of Affiliates or
Third Party contractors to perform its obligations under the Collaboration only as specified in the Research Plan or with the prior written approval of the JRC; provided that (i) prior to the expiration of the Restriction Period, Tekmira
may not, under any circumstances, subcontract any aspect of its obligations under the Research Plan or the Collaboration to Protiva without Alnylams prior written consent, which consent shall not be unreasonably withheld or delayed;
(ii) Tekmira shall remain at all times fully liable for its responsibilities under this Agreement; and (iii) Tekmiras agreement with any permitted subcontractor provides Alnylam the same rights under this Agreement as if Tekmira had
done the work itself, and any such agreement shall include confidentiality and non-use provisions which are no less stringent than those set forth in Article 8 of this Agreement.

(b) In addition, the Parties agree that it may be necessary or useful to enter into Third Party collaborations which provide technology,
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which are necessary or useful for Tekmira and/or Alnylam to perform its obligations under the Collaboration. Such Third Party collaborations shall not conflict with the terms and conditions of
this Agreement. In the event that any such Third Party collaborations are contemplated in connection with the Collaboration, the JRC shall discuss, subject to Third Party confidentiality obligations, and agree upon entering into such Third Party
collaborations, and the Research Plan shall be amended to include such Third Party collaborations. The Parties shall use good faith efforts to ensure that, to the extent possible, all such Third Party collaborations shall provide that any and all
data and results, discoveries and inventions, whether patentable or not, arising out of the Third Party collaboration may be used by bona fide collaborators of the Party entering into the Third Party collaboration agreement and shall include
confidentiality and non-use provisions which are no less stringent than those set forth in Article 8 of this Agreement. In addition, the Party entering into such Third Party collaborations shall use Commercially Reasonable Efforts to obtain a right
to sublicense to the other Party and its Related Parties any Intellectual Property Rights arising out of the Third Party collaboration.

3.6 Records. Each Party shall maintain scientific records, in sufficient detail and in good scientific manner appropriate for patent and regulatory purposes, which shall fully and properly
reflect all work done and results achieved in the performance of the Collaboration. Alnylam shall have the right, during normal business hours and upon reasonable notice, to inspect and copy (or request Tekmira to copy) all records of Tekmira
maintained in connection with the work done and results achieved in the performance of the Collaboration to the extent such records relate to Alnylam Royalty Products. Tekmira shall have the right, during normal business hours and upon reasonable
notice, to inspect and copy (or request Alnylam to copy) all records of Alnylam maintained in connection with the work done and results achieved in the performance of the Collaboration to the extent such records relate to IOC Products. All such
records and the information disclosed therein shall be maintained in confidence in accordance with Article 8.

3.7
Separate Conduct of Certain Activities by Tekmira and Protiva.

3.7.1 Separate Conduct.
Immediately upon the effective date of the Purchase Agreement and through [*] (the Restriction Period), Tekmira has taken and will take all steps necessary to ensure, to the maximum extent practicable, that there was and is
no collaboration between, or joint inventive work conducted by, Tekmira and Protiva under the Research Plan or the Manufacturing Plan, or under the Second Target Research Plan, the PLK Research Plan or the R&D Research Plan (as each such term is
defined in the Protiva License Agreement), or any activities contemplated thereunder, with the goal of preventing any and all of Tekmiras intellectual property from becoming licensed to Merck & Co. under the Merck Settlement
Agreement. Such steps shall include, without limitation, the requirement that during the Restriction Period, Tekmira has maintained and shall maintain research and manufacturing operations that are separate from the research and manufacturing
operations of Protiva for all activities under the Research Plan, the Manufacturing Plan, the Second Target Research Plan, the PLK Research Plan and the R&D Research Plan (as each such term is defined in the Protiva License Agreement), and has
ensured and shall ensure that the Tekmira personnel who work on the Research Plan or the Manufacturing Plan did not and do not undertake research or Manufacturing activities with or for Protiva under the Second Target Research Plan, the PLK Research
Plan or the R&D Research Plan.

3.7.2Common Management; Tekmira Facilities Option. Notwithstanding
the requirements of Section 3.7.1, during the Restriction Period (a) Tekmira and Protiva may (i) have



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common management in the form of one person who serves as CEO of both companies, (ii) have interlocking boards of directors, and (iii) share with each other or loan to each other
specific items of equipment and/or other tangible and intangible assets (but not human resources, other than administrative personnel not involved in Research, Development or Manufacturing activities); and (b) Protiva may use Tekmiras
physical facilities solely to Manufacture (i) at Alnylams sole discretion, a product formulation developed by Protiva for Alnylam under the Protiva License Agreement; or (ii) upon mutual written agreement of Alnylam, Tekmira and
Protiva, an RNAi Product directed to the PLK Target (as such terms are defined under the Protiva License Agreement) (Tekmira Facilities Option).

3.7.3 Notification. During the period from the Effective Date through [*], Tekmira shall notify Alnylam in writing within thirty (30) days after conception of any
intellectual property conceived by Tekmira or Protiva (or their employees or consultants) prior to [*], with respect to which Alnylam has or should have a license under this Agreement, the UBC Sublicense or the Protiva License Agreement, it
being understood that such notice as to the period from the end of the Restriction Period through [*] will be for informational purposes only.

3.7.4 Violations, Penalties. In the event that any joint invention is made (i) by inventor(s) who are employees or consultants of Tekmira and inventor(s) who are employees or
consultants of Protiva during the Restriction Period, (ii) due to or in respect of the conduct of Protiva and/or Tekmira during the Restriction Period and (iii) without any inventive contribution from Alnylam or communication by or through
Alnylam of any information or materials from Protiva or Tekmira to the other in a manner that is material to the determination of inventorship (any such joint invention is hereinafter referred to as a Restricted Joint Invention),
with the result that any rights to such Restricted Joint Invention are licensed to Merck Entities under the Merck Settlement Agreement (or would have been so licensed to Merck Entities under the terms of the Merck Settlement Agreement as they
existed on the Effective Date), then, except and solely to the extent that any such Restricted Joint Invention arises from Manufacturing performed by Protiva at a Tekmira facility as a result of the exercise of the Tekmira Facilities Option:

(a) Tekmira shall cause Protiva to pay to Alnylam any and all royalties and milestone payments received from Merck Entities
under the Merck Settlement Agreement with respect to the development or commercialization of any product as to which the Merck Entities owed such royalties or milestones due to the Coverage of such product by any claims (whether issued or pending)
Covering such Restricted Joint Invention (or that would have been so received from Merck Entities under the terms of the Merck Settlement Agreement as they existed on the Effective Date);

(b) Alnylam shall have a fully-paid, perpetual, milestone-free, royalty-free, and exclusive (except as to the Merck Entities rights
under the Merck Settlement Agreement) license to Tekmiras right, title and interest in the Restricted Joint Invention;

(c) Alnylam shall have the unilateral right, exercisable at any time upon written notice to Tekmira, to terminate Alnylams
obligation to retain Tekmira as Alnylams exclusive manufacturer pursuant to Section 5.1 and the Supply Agreement; and



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(d) any and all royalties required to be paid by Alnylam to Tekmira under this Agreement
with respect to Alnylam Royalty Products Covered by the Exclusively Licensed Tekmira IP shall be reduced by [*].



|4. | JOINT RESEARCH COMMITTEE.
|-- | -------------------------

4.1 Joint Research Committee and Project Managers. As soon as practicable after the Original Effective Date the Parties
established a Joint Research Committee with authority to approve the initial Research Plan, review for approval the annual update to such Research Plan, coordinate the conduct of activities under the Collaboration, and the Manufacturing Activities,
approve the initial Manufacturing Plan, review for approval the quarterly update to such Manufacturing Plan, coordinate the conduct of activities under the Manufacturing Plan, and generally facilitate communication between the Parties. The JRC shall
consist of two (2) representatives of each Party, together with such other personnel of a Party as such Party deems reasonably necessary to accomplish the objectives of this Agreement. Each Party shall also designate a Project
Manager. The Project Managers will be responsible for the day-to-day coordination of the Collaboration and the Manufacturing Activities, and will serve to facilitate communication between the Parties. Each Party may change its designated
Project Manager from time to time upon written notice to the other Party. The JRC shall be empowered to create subcommittees of itself, including without limitation, a committee to oversee Manufacturing Activities (the Manufacturing
Activities Committee), as it may deem appropriate or necessary. The Manufacturing Activities Committee shall consist of representatives of the Parties manufacturing and quality assurance departments. Each such subcommittee shall
report to the JRC, which shall have the authority to approve or reject recommendations or actions proposed thereby subject to the terms of this Article 4.

4.2 Meetings. The JRC shall meet in accordance with schedules established by mutual written agreement of the Parties, but no less frequently than once per Contract Quarter during the
Collaboration Term, with the location for such meetings alternating between Alnylam and Tekmira facilities (or such other locations as are determined by the JRC). Alternatively, the JRC may meet by means of teleconference, videoconference or other
similar communications equipment, but at least two (2) meetings per Calendar Year shall be conducted in person. Each Party shall bear its own expenses relating to attendance at such meetings by its representatives. With respect to decisions of
the JRC, the representatives of each Party shall have collectively one vote on behalf of such Party. For each meeting of the JRC, at least one (1) representative of each Party shall constitute a quorum. Action on any matter may be taken at a
meeting, by teleconference, videoconference or by written agreement.

4.3 Minutes. A secretary shall be
appointed for each meeting and shall prepare minutes of the meeting, which shall provide a written description in reasonable detail of the discussions held at the meeting and a list of any actions, decisions or determinations approved by the JRC.

4.4 Disputes.The JRC shall attempt to resolve any and all disputes relating to this Agreement by consensus;
provided, that the Manufacturing Activities Committee (if it exists at the relevant time) shall first attempt to resolve any and all disputes relating to the Manufacturing Activities (if necessary or appropriate, by reference to the Supply
Agreement and the applicable Quality Agreement, including without limitation, the batch evaluation, acceptance and rejection procedures and standards set forth therein), and failing resolution by the Manufacturing Activities Committee, the JRC shall
attempt to resolve such dispute. If the JRC is unable to reach a consensus



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with respect to a dispute, then the dispute shall be submitted to escalating levels of Tekmira and Alnylam senior management for review. If such dispute cannot be resolved despite escalation,
then the Chief Executive Officers of Alnylam and Tekmira shall attempt to resolve such dispute. In the event that the Chief Executive Officers cannot reach an agreement regarding such dispute within thirty (30) days after submission to them for
resolution, then:

(a) If the dispute is one over which the JRC has authority pursuant to Section 4.1, then Alnylam shall
have final decision-making authority; provided, however, that Alnylam may not, without Tekmiras consent, increase Tekmiras obligation during the Collaboration Term to provide FTEs to perform its obligations under the
Collaboration in excess of [*] FTEs per Contract Year of the Collaboration Term; and

(b) With respect to all other
disputes between the Parties, the dispute resolution provisions of Section 12.6 shall apply.

Notwithstanding the foregoing, if the
dispute between the Parties is over the reasonable comparability of the factors described in Section 5.1(a)(ii) and the Manufacturing Activities Committee cannot agree within five (5) Business Days after submission of the bona fide Third
Party quote to the Manufacturing Activities Committee, then the Parties shall not refer the matter to the JRC but rather to an independent Third Party manufacturing consultant reasonably acceptable to the Parties and the Parties shall cause such
independent Third Party to render his/her decision as soon as possible but no later than fifteen (15) Business Days after submission, which decision shall be binding on the Parties.



|5. | MANUFACTURING
|-- | -------------

5.1
Manufacturing and Supply.

(a) Exclusive Manufacturing Obligations. Alnylam hereby retains Tekmira, on a
product-by-product basis, as Alnylams exclusive manufacturer to Manufacture and supply Alnylams requirements of the bulk finished dosage form of each Alnylam Royalty Product formulated using Tekmira Technology, and/or Alnylam Technology,
including, without limitation, the Third Party Liposome Patent Rights, in each case for toxicology and other non-clinical studies and clinical development, through the completion of all Phase II Studies of such Alnylam Royalty Product that are
initiated prior to the initiation of the first Phase III Study of such Alnylam Royalty Product; provided, however, that such exclusive supply engagement shall only apply during the Manufacturing Term and shall not apply to any Alnylam Royalty
Product (on a product-by-product basis):

(i) that Tekmira cannot or will not Manufacture and supply (or is not or will not be
able to Manufacture and supply), to Alnylams reasonable satisfaction, (x) at the requisite scale, in sufficient quantities, within requisite timelines based on Alnylams actual and/or planned development program for such Alnylam
Royalty Product and in accordance with the applicable product master batch record, specifications and other quality requirements for such Alnylam Royalty Product as set forth in the Supply Agreement and the applicable Quality Agreement, (y) in
accordance with all applicable laws and regulations, including without limitation the requirements of cGMP, and (z) using a facility with respect to which Tekmira or its permitted subcontractor has obtained approval from the applicable
Regulatory Authorities to Manufacture and supply such Alnylam Royalty Product; or



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(ii) with respect to which Alnylam would be required to pay Tekmira an amount per batch of
the bulk finished dosage form of such Alnylam Royalty Product that is [*] greater than the cost per batch for the Manufacture of such finished dosage form as quoted in a bona fide offer received by Alnylam from a Third Party; provided,
that the specifications for such finished dosage form, and the batch size, quantity, and quality of product would be at least reasonably comparable. In the event that Alnylam would be entitled under this clause (ii) to obtain its requirements
of the finished dosage form of an Alnylam Royalty Product from a Third Party, then prior to Alnylam engaging such Third Party for such services Tekmira may submit a revised per batch price quote for such finished dosage form and if Tekmiras
revised per batch price quote is [*] Third Partys quote, Alnylam shall continue to obtain its supply of such finished dosage form from Tekmira in accordance with this Article 5.

Moreover, Alnylam may obtain supply of the bulk finished dosage form of any Alnylam Royalty Product from a Third Party in such amounts as may be required in order to qualify and maintain such Third Party
as a backup supplier as part of Alnylams prudent supply chain management policies; provided, however, that so long as Tekmira is able to comply with the requirements set forth in this Section 5.1(a), Tekmira shall continue to
be Alnylams primary supplier. For purposes of determining whether Tekmira is able to comply with the requirements of this Section 5.1(a), the capabilities of Tekmira and its wholly-owned subsidiary Protiva, acting either together or
separately, shall be taken into account, and Protiva acting separately will not be considered unable to comply with such requirements solely due to any refusal of Alnylam to approve subcontracting to Protiva pursuant to Section 5.3(b), whether
or not such refusal is reasonable.

(b)Alternate Supplier. Tekmira shall, upon Alnylams written request provided
to Tekmira at any time after (i) the Effective Date, identify and reasonably verify the suitability of a Third Party as a backup supplier of Alnylam Royalty Products as soon as reasonably possible and/or (ii) [*],
establish and qualify a Third Party as a backup supplier of Alnylam Royalty Products as soon a reasonably possible, but in no event more than twelve (12) months after receipt of such request; provided, however, that
the JRC may agree to extend such time periods. Alnylam shall have the right to propose such backup supplier(s) and Tekmira shall have the right to consent to such backup supplier(s), which consent shall not be unreasonably
withheld or delayed. Within thirty (30) days after the Effective Date Tekmira will deliver to the JRC, for review and approval, an update to the Manufacturing Plan containing a project overview for establishing and qualifying a
backup supplier. This project overview will include contract manufacturing organization targets, timelines, equipment requirements, and both FTE and out-of-pocket expense estimates. The qualification of a backup supplier is
not intended in any way to alter Tekmiras rights to Manufacture Alnylam Royalty Products under this Agreement. All internal FTE costs and extraordinary out-of-pocket expenses actually incurred by Tekmira in, and reasonably required, to qualify
a backup supplier as set forth in this Section 5.1(b) shall be reimbursed by Alnylam (in the case of FTE costs, at the applicable FTE Rate and not to exceed the project overview estimate without the prior approval of the JRC).
Tekmira acknowledges and agrees that the FTE Rate reflects Tekmiras fully-loaded costs and expenses in performing its obligations under the project overview portion of the Manufacturing Plan, and that Tekmira is solely responsible for its
costs and expenses in performing its obligations thereunder. However, Alnylam agrees to reimburse Tekmira for any extraordinary out-of pocket costs and expenses incurred by Tekmira in performing its obligations under this Section 5.1(b) to the
extent that such out-of pocket costs and expenses are approved by the JRC in advance in writing and are reasonable, documented costs and expenses actually and directly incurred by Tekmira.



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5.2 Manufacturing Funding. Alnylam shall pay Tekmira for the supply of bulk
finished dosage form of Alnylam Royalty Products in accordance with Section 7.5.2.

5.3 Supply Agreement;
Subcontracting Restriction; Phase III and Commercial Supply.

(a) The Parties have entered into the Supply Agreement
effective the Original Effective Date. The Parties hereby amend the terms of the Supply Agreement by: (i) replacing each reference to Initial Collaboration Term in Section 8.1(b) of the Supply Agreement with Collaboration
Term and (ii) replacing the reference to Section 5.1(a) or (b) in Section 14.2 of the Supply Agreement with Section 5.1(a)(i) or (ii).

(b) Notwithstanding anything in this Agreement or in the Supply Agreement to the contrary, prior to December 31, 2008, Tekmira may not, under any circumstances, subcontract any aspect of its
obligations under the Manufacturing Plan, the Manufacturing Activities or the Supply Agreement to Protiva without Alnylams prior written consent, which consent shall not be unreasonably withheld or delayed.

(c) The Parties agree to discuss in good faith from time to time Tekmiras Manufacture and supply of Alnylams requirements of
the bulk finished dosage form of Alnylam Royalty Products for Phase III Studies and commercial sale, however, nothing in this Agreement or the Supply Agreement shall be deemed to be a binding obligation of either Party to enter into such a
transaction.

5.4 Technology Transfer. If Alnylam elects to Manufacture the finished dosage form of an Alnylam
Royalty Product, or to have such finished dosage form Manufactured by a Third Party, in each case as permitted under this Agreement, including without limitation Sections 5.1 above and Sections 11.2.2, 11.4 and 11.6, then Tekmira will provide to
Alnylam or its designee, all Manufacturing information, including, without limitation, documentation, technical assistance, and any materials or equipment owned by Alnylam, and cooperation by appropriate employees of Tekmira as Alnylam or its
designee may reasonably require in order to Manufacture such finished dosage form. Alnylam will compensate Tekmira for such assistance at the FTE Rate, except in the case of a material breach by Tekmira of this Agreement, the Supply Agreement or a
Quality Agreement by Tekmira in which event Tekmira shall provide such assistance free of charge for an appropriate and reasonable period of time.



|6. | LICENSES
|-- | --------

6.1
License Grants.

6.1.1 Alnylam Royalty Products.

(a) Exclusive Alnylam Royalty Product License. Subject to the terms and conditions of this Agreement, Tekmira hereby grants
to Alnylam an exclusive, royalty-bearing license under and to use the Exclusively Licensed Tekmira IP to Research, Develop, Manufacture and Commercialize Alnylam Royalty Products in the Alnylam Field and in and for the Territory. Such license
includes the right to grant sublicenses as provided in Section 6.2 below.

(b) Non-Exclusive Alnylam Royalty Product
Licenses.



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(i) Class 1 Non-Exclusively Licensed Tekmira IP. Tekmira grants to Alnylam a
non-exclusive, royalty-bearing license under and to use Class 1 Non-Exclusively Licensed Tekmira IP to Research, Develop, Manufacture and Commercialize Alnylam Royalty Products in the Alnylam Field and in and for the Territory (Alnylam
Class 1 Royalty Products). Such license includes the right to grant sublicenses as provided in Section 6.2 below.

(ii) Class 2 Non-Exclusively Licensed Tekmira IP. Tekmira grants to Alnylam a non-exclusive, royalty-bearing license under and to use Class 2 Non-Exclusively Licensed Tekmira IP to Research,
Develop, Manufacture and Commercialize Alnylam Royalty Products for any Alnylam Target in the Alnylam Field and in and for the Territory (Alnylam Class 2 Royalty Products). Such license includes the right to grant sublicenses as
provided in Section 6.2 below.

(c) Collaboration and Manufacturing Activity License.Subject to the terms and
conditions of this Agreement, Alnylam hereby grants Tekmira a non-exclusive, royalty-free license under (i) Alnylam RNAi Technology and Alnylam Collaboration IP and (ii) Alnylams rights in Tekmira Technology, and Tekmira
Collaboration IP, in each case as permitted and solely for the purposes of performing (x) Tekmiras obligations under the Collaboration with respect to Alnylam Royalty Products in accordance with the Research Plan as set forth in Article
3, and (y) the Manufacturing Activities. Such license does not include the right to grant sublicenses except to subcontractors of Tekmira permitted under Sections 3.5 or 5.3(b) or the Supply Agreement.

6.1.2 Tekmira Royalty Products.

(a) Tekmira Development Product License. Subject to the terms and conditions of this Agreement, Alnylam hereby grants Tekmira (i) an exclusive, royalty-bearing license under the Alnylam Core
Patent Rights, the Alnylam Lipidoid Patent Rights, Alnylam Collaboration IP and Alnylams interest in Joint Collaboration IP, and (ii) an exclusive, royalty-free license under Alnylams rights in Tekmira Technology and Tekmira
Collaboration IP, in each case to Research, Develop, Manufacture and Commercialize Tekmira Development Products in the Alnylam Field in and for the Territory. Such license includes the right to grant sublicenses as provided in Section 6.2
below.

(b) Alnylam Data License. Alnylam grants to Tekmira a perpetual, non-exclusive, royalty-free, worldwide license
to use and exploit the Alnylam Data; provided, however, that: (i) Tekmira will, pursuant to Article 8, protect from disclosure any of such Alnylam Data that constitutes Alnylams Confidential Information and (ii) to the
extent any Alnylam Data that constitutes Alnylams Confidential Information relates to a Particular Moiety (other than a Particular Moiety directed at a Tekmira Development Target), Tekmira will not use or exploit such Alnylam Data, or transfer
or sublicense such ALNYLAM Data to any Third Party, for the purposes of Research, Development, or Commercialization of products directed at the Target of such Particular Moiety, except to subcontractors of Tekmira permitted under Section 3.5 or
5.3(b) or the Supply Agreement.

(c) IOC Product License.Subject to the terms and conditions of this Agreement,
Alnylam hereby grants Tekmira an exclusive, royalty-bearing license under Alnylams interest in the Alnylam IOC Technology, Alnylam Collaboration IP and Alnylams interest in Joint Collaboration IP to Research, Develop, Manufacture and
Commercialize IOC Products in the Tekmira IOC Field in and for the United States. Such license includes the right to grant sublicenses as provided in Section 6.2 below.



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(d) Collaboration License. Subject to the terms and conditions of this Agreement,
Tekmira hereby grants Alnylam a non-exclusive, royalty-free license under (i) Tekmira Technology and Tekmira Collaboration IP, and (ii) Tekmira IOC Technology that is Controlled by Tekmira on the Original Effective Date and during the
Collaboration Term, as permitted and solely for the purposes of performing Alnylams obligations under the Collaboration with respect to Tekmira Royalty Products in accordance with the Research Plan as set forth in Article 3. Such license does
not include the right to grant sublicenses except to subcontractors of Alnylam permitted under Section 3.5.

6.1.3
Royalty Term. Upon expiration of all royalty obligations hereunder all licenses of the Parties under this Article 6 then in effect shall become fully paid-up, perpetual, non-exclusive licenses.

6.2 Sublicenses.

6.2.1 Affiliates. Each Party shall be entitled to grant sublicenses of its rights under this Agreement (and licenses of its rights under and to Joint Collaboration IP) to its Affiliates for
so long as such entities remain Affiliates and upon written confirmation by such Affiliates that they agree to be bound by the terms and conditions of this Agreement; provided, however, that (a) Tekmira may not sublicense its
rights under this Agreement to perform the Collaboration or to perform Manufacturing Activities to a Tekmira Affiliate of which [*] or more of the outstanding voting securities are owned, controlled or held by a Significant Pharmaceutical
Company or by any investment entity affiliated with any such Significant Pharmaceutical Company and (b) any such sublicense shall be subject in all respects to the terms of Section 3.7. If a Party grants a sublicense to its Affiliate:
(i) the granting Party unconditionally guarantees the performance of such Affiliate as if such Affiliate were a signatory to this Agreement to the extent the performance or lack of performance is a breach of this Agreement, and (ii) the
obligations and liabilities of such Affiliate shall be joint and several and the non-granting Party shall not be obliged to seek recourse against such Affiliate before enforcing its rights against the granting Party. For greater certainty, it is
hereby confirmed that any default or breach by such Affiliate of any term of this Agreement will also constitute a default by the granting Party under this Agreement, and the non-granting Party shall be entitled to exercise its rights hereunder, in
addition to any other rights and remedies to which the non-granting Party may be entitled.

6.2.2 Alnylam Royalty
Products. Alnylam shall be entitled to grant sublicenses of its rights under this Agreement (and licenses under and to its rights in any Joint Collaboration IP) to Third Parties to Research, Develop, Manufacture and Commercialize Alnylam Royalty
Products; provided, that:

(a)with respect to any license or sublicense of Alnylams rights under
Section 6.1.1(b)(i), such license or sublicense may only be granted to one or more Third Parties in a Bona Fide Collaboration with Alnylam, but solely within the scope of and for the purposes of such Bona Fide Collaboration, or with respect to
the Research, Development, Manufacture and/or Commercialization of Alnylam Class 1 Royalty Products that meet one or more of the following: (i) such Alnylam Class 1 Royalty Product was initially Developed at least to the point of preclinical
proof-of-principle by Alnylam in an Active Internal Development Program; (ii) such Alnylam Class 1 Royalty Product is an Alnylam Partnered Product; or (iii) such Alnylam Class 1 Royalty Product is a Research Program Product;

(b) with respect to any license or sublicense of Alnylams rights under Section 6.1.1(b)(ii), such right to license or
sublicense will apply only with respect to the Research, Development,



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Manufacturing, and/or Commercialization of Alnylam Class 2 Royalty Products that meet one or
more of the following:

(x) such Alnylam Class 2 Royalty Product is a Research Program Product; or

(y) such Alnylam Class 2 Royalty Product incorporates the same Formulation as the Lead Formulation of a Research Program Product, whether
or not it is directed at the same Target as such Research Program Product, and also meets one or more of the following: (1) such Alnylam Class 2 Royalty Product was initially Developed at least to the point of preclinical proof-of-principle by
Alnylam in an Active Internal Development Program; or (2) such Alnylam Class 2 Royalty Product is an Alnylam Partnered Product;

(c) Alnylam may sublicense any and all of its rights under Section 6.1.1(b) to Roche and to Hoffmann-La Roche Inc. (Roche-Nutley, and together with Roche, the Roche
Sublicensees) pursuant to an agreement substantially in the form set forth in Schedule 6.2.2.

(d)(i) with
respect to any sublicense of Alnylams rights under Sections 6.1.1(a) and/or (b) in respect of any Alnylam Royalty Product for which Tekmira has not initiated Manufacturing of batches of finished dosage form for GLP toxicology
studies, Alnylam shall use Commercially Reasonable Efforts to facilitate a business discussion between Tekmira and Alnylams Sublicensee (other than Tekmira or its Affiliates) with respect to the provision of manufacturing services by Tekmira
to such Sublicensee, (ii) with respect to any sublicense of Alnylams rights under Sections 6.1.1(a) and/or (b) in respect of any Alnylam Royalty Product for which Tekmira has initiated Manufacturing of batches of finished
dosage form for GLP toxicology studies, Alnylams Sublicensee (other than Tekmira or its Affiliates) shall be required to obtain its requirements of the bulk finished dosage form of such Alnylam Royalty Product from Tekmira on the terms set
forth in Article 5, however, Tekmira agrees to negotiate in good faith with Alnylam and/or Alnylams Sublicensee either an alternate or modified supply arrangement or the release of such Sublicensee from such exclusive supply obligation in
return for reasonable compensation to Tekmira, and (iii) prior to entering into an InterfeRx License Transaction with a Third Party that includes a license and/or sublicense to Alnylams rights under Sections 6.1.1(a) and/or (b), Alnylam
and Tekmira shall discuss in good faith and agree in writing, on a sublicense-by-sublicense basis, as the case may be, on the portion of any license fees, milestones and/or royalties that would be payable to Tekmira in respect of such sublicense.

(e) In no event shall the provisions of this Section 6.2.2 be construed as requiring Alnylam to enter into any
sublicensing transactions with respect to the Tekmira Technology.

(f) For clarity, in no event will the sublicensing
restrictions described in Sections 6.2.2(a), (b) or (c) apply to licenses and sublicenses of Alnylams rights under Section 6.1.1(a). Alnylam may also sublicense any and all of its rights under Section 6.1.1(a) to Protiva
under the terms of the Protiva License Agreement. Tekmira acknowledges and agrees that in the case of a sublicense to Protiva, Protiva shall be fully responsible for payment and performance of all obligations under this Agreement pertaining to such
sublicense and Tekmira hereby releases Alnylam from any and all obligations and liabilities under this Agreement with respect to such sublicense.

6.2.3 Tekmira Royalty Products. Tekmira shall be entitled to grant sublicenses of its rights under this Agreement (and licenses under and to its rights in any Joint Collaboration IP) to
Third Parties to Research, Develop, Manufacture and Commercialize Tekmira Royalty Products to any Third



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Party upon prior written notice to Alnylam; provided, however, that (i) in no event may Tekmira or its Affiliates grant a sublicense under any of the Exclusively Licensed Tekmira IP to the
Merck Entities (the Merck Restriction) and (ii) in all events, any such sublicense shall be subject to the terms of Section 3.7.

6.2.4 Sublicense Terms. Each license and/or sublicense granted by a Party pursuant to Section 6.2.2 or 6.2.3 shall be subject and subordinate to the terms and conditions of this
Agreement and shall contain terms and conditions consistent with those in this Agreement, including, without limitation, the requirements of Section 6.4 below. Agreements with any Commercializing Sublicensee shall contain the following
provisions: (a) a requirement that such Sublicensee submit applicable sales or other reports consistent with those required hereunder; (b) an audit requirement similar to the requirement set forth in Section 7.6; and (c) a
requirement that such Sublicensee comply with the confidentiality and non-use provisions of Article 8 with respect to both Parties Confidential Information. Each Party shall at all times be responsible for the performance of its Sublicensees
under this Agreement. In the event a granting Party becomes aware of a material breach of any sublicense by a Third Party Sublicensee, the granting Party shall promptly notify the other Party of the particulars of same and take all Commercially
Reasonable Efforts to enforce the terms of such sublicense.

6.2.5 Notice. Unless otherwise provided in
this Agreement, a Party granting a license and/or sublicense as contemplated in Section 6.2.4 will notify the other Party within ten (10) Business Days after execution of such sublicense and provide a copy of the fully executed license
and/or sublicense agreement, as the case may be, to the other Party within the same time frame (with such reasonable redactions as the disclosing Party may make, provided that such redactions do not include provisions necessary to demonstrate
compliance with the requirements of this Agreement), which shall be treated as Confidential Information of the disclosing Party; and provided further that Alnylam may disclose such agreement(s) to Third Parties under confidence if and to the
extent required in order to comply with Alnylams contractual obligations under both this Agreement and Third Party agreements.

6.2.6 Survival. Any sublicense contemplated in Section 6.2.4 granted by a Party shall survive termination of the licenses or other rights granted to the sublicensing Party under this
Agreement in accordance with this Article 6, and be assumed by the other Party as long as (a) the Sublicensee is not then in breach of its license and/or sublicense agreement, (b) the Sublicensee agrees in writing to be bound to the other
Party as a licensor under the terms and conditions of the license and/or sublicense agreement, and (c) the Sublicensee agrees in writing that in no event shall the other Party assume any obligations or liabilities, or be under any obligation or
requirement of performance, under any such license and/or sublicense extending beyond such other Partys obligations and liabilities under this Agreement.

6.3 Joint Collaboration IP.Subject to the rights granted each Party under this Agreement, each Party shall have the right to use, sell, keep, license or assign its interest in Joint
Collaboration IP and otherwise undertake all activities a sole owner might undertake with respect to such Joint Collaboration IP without the consent of and without accounting to the other Party.

6.4 In-Licenses.(a) (i) All licenses and other rights granted to Tekmira under this Article 6 are subject to the
rights granted to Alnylam under the Existing Alnylam In-Licenses and are also subject to and limited to the extent of, the rights Alnylam has granted and is required to grant to Third Parties pursuant to the Pre-Existing Alnylam Alliance Agreements.
All licenses and other rights



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granted to Alnylam with respect to the Tekmira Technology under this Article 6 are subject to the rights granted to Tekmira, and to Tekmiras ability to grant rights to Alnylam under the
Tekmira In-Licenses.

(ii) Concurrently with the Original Effective Date the Parties and UBC entered into the UBC Sublicense
Documents each containing provisions governing or relating to the sublicense to Alnylam of rights to Tekmira Technology and Tekmira Collaboration IP in the Alnylam Field that are Controlled by Tekmira by virtue of its licenses from UBC under the
Tekmira-UBC License Agreement. Alnylam hereby agrees, effective as of the end of the Restriction Period, that its rights and licenses under the UBC Sublicense Documents, to the extent applicable to any Technology (as defined in the Tekmira-UBC
License Agreement) first discovered or reduced to practice following the end of the Restriction Period or otherwise first included in the licenses to Tekmira under the Tekmira-UBC License Agreement following the end of the Restriction Period
(including without limitation any Tekmira Collaboration IP discovered or reduced to practice following the end of the Restriction Period that is to be assigned to UBC under the UBC Sublicense Documents), shall be non-exclusive, notwithstanding
anything to the contrary in the UBC Sublicense Documents or otherwise. If and to the extent that the foregoing requires any notice to or consent from UBC, Alnylam agrees to assist Tekmira as reasonably requested, at any time and from time to time
following the Effective Date, to provide such notice or facilitate such consent (it being understood and agreed that Alnylam is not obligated to provide UBC, directly or indirectly, with any additional compensation in order to secure any such
consent).

(iii) Following the Original Effective Date, each and every Tekmira In-License entered into by Tekmira shall
contain terms substantially similar to the provisions set forth in Schedule 6.4(a) (such provisions, the Tekmira In-License Provisions). For clarity, if Tekmira possesses a reasonable belief at the time Tekmira enters into an
agreement with a Third Party for the in-license of Intellectual Property Rights, that such Intellectual Property Rights do not and will not relate to the Alnylam Field, then Tekmira shall not be required to include the Tekmira In-License Provisions
in such Third Party in-license agreement; provided, however, that if after execution of such an in-license agreement it is discovered or determined that some or all of such in-licensed Intellectual Property Rights does relate to the
Alnylam Field, then Tekmira shall use Commercially Reasonable Efforts to amend such Third Party in-license agreement to incorporate provisions substantially similar to the Tekmira In-License Provisions.

(b) Each Party shall comply with all applicable terms and conditions of the In-Licenses, the Tekmira-UBC License Agreement and the UBC
Sublicense Documents to which it is a party, and shall take such actions as may be required to allow the other Party to comply with its obligations thereunder, including but not limited to, obligations relating to patent matters, confidentiality,
reporting, indemnification and diligence. Without limiting the foregoing, Tekmira agrees to comply with the requirements set forth in the MIT License Agreement, including but not limited to, the requirements listed on Schedule 6.4(b).

(c) Alnylam shall be solely responsible for obtaining licenses of Necessary Third Party IP for the Research, Development, Manufacturing
or Commercialization of Alnylam Royalty Products. Tekmira shall be solely responsible for obtaining licenses of Necessary Third Party IP for the Research, Development, Manufacturing or Commercialization of Tekmira Royalty Products. Such licenses
shall not grant rights to any Third Party that conflict with the terms and conditions of this Agreement.



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6.5 Options to Obtain Additional Patent Rights.

6.5.1 CRT Agreement and Stanford Agreement. Notwithstanding anything to the contrary herein, the licenses to Alnylam Core
Patent Rights hereunder initially shall not include licenses to Patent Rights licensed by Alnylam or its Affiliates under either (a) the Agreement between The Board of Trustees of The Leland Stanford Junior University and Alnylam U.S., Inc.
(formerly Alnylam Pharmaceuticals, Inc.), dated September 17, 2003 (Stanford Agreement) or (b) the License Agreement between Cancer Research Technologies Limited and Alnylam U.S., Inc. (formerly Alnylam Pharmaceuticals,
Inc.) dated July 18, 2003 (the CRT Agreement); provided that if any such Patent Rights in-licensed by Alnylam become issued Patent Rights that Cover a Tekmira Development Product, Alnylam shall so notify Tekmira
in writing, and Tekmira shall have the option of expanding its licenses to the Alnylam Core Patent Rights hereunder to include such issued Patent Rights by notifying Alnylam of such election in writing. Upon such election, (i) Tekmira shall pay
Alnylam a reasonable upfront license fee for such rights, (ii) the Parties shall enter into a separate agreement documenting the specific terms of the sublicense (consistent with the requirements of the applicable Third Party license
agreement), and (iii) Schedule 1.4 shall be amended to include such issued Patent Rights and the Stanford Agreement or the CRT Agreement, as the case may be, shall be deemed an Existing Alnylam In-License and Schedule 1.35 shall be amended
accordingly.

6.5.2 ISIS License Agreement. Alnylam hereby grants Tekmira an option, exercisable at any
time during the Agreement Term upon written notice to Alnylam, to obtain an exclusive license under Alnylams rights under the ISIS License Agreement to Research, Develop, Manufacture and Commercialize Tekmira Development Products in the
Alnylam Field in the Territory, under terms and conditions to be negotiated by the Parties in good faith.

6.6 No Other
Rights.Except as otherwise expressly provided in this Agreement, under no circumstances shall a Party hereto, as a result of this Agreement, obtain any ownership interest, license or other right in any Intellectual Property Rights of the
other Party, including rights owned, controlled or developed by the other Party, or provided by the other Party to the receiving Party at any time pursuant to this Agreement.

6.7 Diligence and Annual Reports. (a) Alnylam shall use Commercially Reasonable Efforts to Research, Develop and Commercialize an Alnylam Royalty Product in the Territory. Tekmira shall
use Commercially Reasonable Efforts to Research, Develop and Commercialize a Tekmira Royalty Product in the Territory.

(b)
Each Party agrees that it shall deliver to the other Party an annual report, due no later than December 31 of each Contract Year of the Agreement Term, which summarizes the major activities undertaken by the reporting Party during the preceding
twelve (12) months to Research, Develop and Commercialize its Royalty Products in the Territory in the applicable field. The report will include an outline of the status of any such Royalty Products in clinical trials and the existence of any
sublicenses with respect to such Royalty Products which have not been previously disclosed.



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6.8 Compliance. Each Party shall conduct its obligations under this Agreement
in accordance with all applicable laws, rules and regulations, including without limitation current governmental regulations concerning good laboratory practices, good clinical practices, cGMP and the requirements of the United States Federal
government in connection with activities funded by it, as applicable.

6.9 Alnylam Rights Relating to Tekmira IOC
Technology and IOC Products.

(a) IOC Technology. Until the expiration of the last Valid Claim of the Alnylam
IOC Patent Rights, Alnylam may, upon written notice to Tekmira (an FTO Notice), elect to take from Tekmira, and Tekmira will grant to Alnylam, a worldwide, royalty-bearing, non-exclusive license (with no rights to sublicense) to
the Tekmira IOC Technology to Research, Develop and Commercialize IOC Products (a Platform License). For clarity, such Platform License will not grant Alnylam any rights to Tekmira IOC Technology Covering only a specific Tekmira
IOC Product or particular uses of such IOC Product, and is intended to provide Alnylam with freedom to operate under the Tekmira IOC Technology to Research, Develop and/or Commercialize IOC Products Controlled by Alnylam. Upon
Tekmiras receipt of such FTO Notice from Alnylam, the Parties shall promptly commence good faith negotiations for a period of up [*] in an effort to reach a mutually acceptable definitive agreement for such Platform License that is
consistent with the terms of this Section 6.9(a) and contains other customary and reasonable terms mutually agreeable to the Parties.

(i) Whether or not Alnylam has previously provided an FTO Notice, Tekmira will provide Alnylam with at least thirty (30) days prior written notice before entering into any agreement with a
Third Party with respect to a Platform License. Such notice will include a description of the financial terms of such proposed Platform License sufficient to permit Alnylam to understand and evaluate such terms.

(ii) If Tekmira offers a Platform License to a Third Party or a Third Party offers to obtain a Platform License at any
time during the first five (5) years after Alnylam has provided an FTO Notice, and the terms of such Platform License offer, taken as a whole, are the same as, or more favorable to such Third Party than (x) the terms of the Parties
definitive agreement for a Platform License, or (y) if the Parties have not yet entered into a definitive agreement for a Platform License, the last proposal for a Platform License made in the course of the Parties negotiations pursuant
to this Section 6.9(a) (in either case of (x) or (y), More Favorable Terms), then upon written notice from Alnylam, either (A) the Parties will amend the Parties definitive agreement for a Platform License to
match or improve upon the More Favorable Terms; or (B) the Parties will promptly conclude a definitive agreement for a Platform License on substantially similar terms as the More Favorable Terms.

(b) IOC Products.Prior to the expiration of the last Valid Claim of the Alnylam IOC Patent Rights, Tekmira shall notify
Alnylam in writing (a Product Notice) prior to entering into bona fide negotiations with a Third Party for the rights to Research, Develop and/or Commercialize any IOC Product Controlled by Tekmira (an Tekmira IOC
Product). Such Product Notice shall include material information relating to such Tekmira IOC Product that Alnylam may reasonably require in order for Alnylam to evaluate and determine its interest in such Tekmira IOC Product.





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(i) If Tekmira issues the Product Notice prior to the acceptance of a bona
fide IND filing by a Regulatory Authority in the United States or one of the Major Markets for the applicable Tekmira IOC Product, then Alnylam shall have forty-five (45) days after receipt of such Product Notice (the Opportunity
Response Period) to notify Tekmira in writing of its interest in such Tekmira IOC Product. If Alnylam notifies Tekmira in writing within the Opportunity Response Period that it is interested in such Tekmira IOC Product, then the Parties
shall promptly commence good faith negotiations (in Tekmiras case on an exclusive basis) for a period of up to ninety (90) days after Alnylam receives the Product Notice in an effort to conclude a mutually acceptable definitive agreement
for the exclusive rights to Research, Develop and Commercialize such Tekmira IOC Product (Product License). The royalties payable to Tekmira in respect of such Tekmira IOC Product contained in such definitive agreement will be
equal to the royalties and milestones payable with respect to an IOC Product under this Agreement; provided, however that Tekmira shall not be required to reimburse Alnylam for any royalties or milestones payable by Alnylam in respect
of such Tekmira IOC Product under any Third Party agreements pursuant to which Alnylam Controls the Alnylam IOC Technology licensed to Tekmira under this Agreement that Cover such Tekmira IOC Product, and the agreement will otherwise contain
reasonable and customary terms that are consistent with the terms of this Section 6.9(b); provided, however, that the Parties shall enter into good faith negotiations to agree upon ancillary financial provisions to compensate
Tekmira for its prior reasonable Research and Development expenditures solely in connection with such Tekmira IOC Product, which expenditures shall be based on the properly allocated costs and expenses directly incurred by Tekmira for the Research,
Development and/or Manufacture of such Tekmira IOC Product through and including the Opportunity Response Period, which costs shall include all reasonable and properly allocated internal costs (determined in accordance with the then-current Tekmira
FTE Rate) for the FTEs directly performing Research, Development and Manufacturing activities with respect to such Tekmira IOC Product during such period and the reasonable, direct out-of-pocket expenses actually paid by Tekmira in its performance
of the Research, Development and/or Manufacture of such Tekmira IOC Product. If Tekmira issues the Product Notice after the acceptance of a bona fide IND filing by a Regulatory Authority in the United States or one of the Major Markets for the
applicable Tekmira IOC Product, then Alnylam shall have ninety (90) days after receipt of such Product Notice (the Post-IND Opportunity Response Period) to notify Tekmira in writing of its interest in such Tekmira IOC
Product. If Alnylam notifies Tekmira in writing within the Post-IND Opportunity Response Period that it is interested in such Tekmira IOC Product, then the Parties will use Commercially Reasonable Efforts to negotiate and execute a definitive
agreement for the Product reasonable and customary terms mutually agreeable to the Parties, including appropriate financial consideration after taking into account the maturity of Tekmiras Research, Development and Commercialization activities
through and including the Opportunity Response Period. If (x) Alnylam notifies Tekmira that it is not interested in obtaining a Product License with respect to such Tekmira IOC Product, (y) Alnylam does not notify Tekmira in writing within
the Opportunity Response Period that it is interested in such Tekmira IOC Product, or (z) despite each Partys good faith efforts, Alnylam and Tekmira are not able to reach agreement on and execute a definitive agreement for a Product
License within such one hundred and twenty (120) day period, then Tekmira may enter into negotiations with any Third Party for such Tekmira IOC Product.



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(ii) If (x) at any time prior to the expiration of the last Valid Claim
of the Alnylam IOC Patent Rights Tekmira offers to a Third Party or a Third Party offers to obtain rights to Research, Develop and/or Commercialize a Tekmira IOC Product that has been the subject of a Product Notice and with respect to which Alnylam
does not have a Product License, and (y) the terms of such Third Party Product License offer, taken as a whole, are the same as, or more favorable to the Third Party than the last Product License offer with respect to such Tekmira IOC Product
made by a Party to the other in the course of the Parties negotiations pursuant to this Section 6.9(b), then prior to executing any agreement with such Third Party (A) Tekmira will provide to Alnylam a description of the terms of
such Third Party Product License offer sufficient to permit Alnylam to evaluate such offer terms, and (B) Alnylam will have thirty (30) days to evaluate such offer and determine if Alnylam wishes to enter into a Product License agreement
with Tekmira for such Tekmira IOC Product on terms that are substantially similar to those offered to or by such Third Party. If Alnylam elects to enter into an agreement with Tekmira in accordance with the immediately preceding sentence, then the
Parties will promptly conclude an agreement on substantially similar terms to the Third Party Product License offer. If Alnylam does not notify Tekmira in writing within such thirty (30) day period that it is interested in concluding a Product
License agreement for such Tekmira IOC Product, then Tekmira may conclude an agreement with a Third Party for such Tekmira IOC Product on terms that are, taken as a whole, not more favorable to such Third Party than the terms presented to Alnylam
pursuant to this Section 6.9(b).



|7. | PAYMENTS; ROYALTIES AND REPORTS
|-- | -------------------------------

7.1 Upfront Consideration.As partial consideration for the license and grant of rights under this Agreement, Alnylam previously paid to Tekmira Eight Million Dollars ($8,000,000) by issuing
to Tekmira 361,990 shares of Alnylams common stock, par value $0.01 per share (the Shares).

7.2
Milestone Fees Payable by Alnylam.

(a) As partial consideration for the grant by Tekmira to Alnylam of the licenses
and other rights hereunder, Alnylam shall make the milestone payments to Tekmira set forth below no later than thirty (30) calendar days after the earliest date on which the corresponding milestone event has been achieved with respect to each
Alnylam Royalty Product (other than an Alnylam Royalty Product directed to a Biodefense Target) to achieve such milestone event:



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|--------------- |  | ------- | --- | 
|Milestone Event |  | Payment |    
|[*]             |  |         | [*] | 
|[*]             |  |         | [*] | 
|[*]             |  |         | [*] | 
|[*]             |  |         | [*] | 
|[*]             |  |         | [*] | 
|[*]             |  |         | [*] | 





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In the event one or more milestone events set out above are skipped for any reason, the payment for such
skipped milestone event(s) will be due at the same time as the payment for the next achieved milestone event.

(b) If,
however, an Alnylam Royalty Product is directed to a Biodefense Target, in lieu of the milestone payments set forth in Section 7.2(a), the following milestone payments shall be payable no later than thirty (30) calendar days after the
later of (i) the earliest date on which the corresponding milestone event has been achieved with respect to such Alnylam Royalty Product, and (ii) receipt by Alnylam of all funding from a Funding Authority that Alnylam is eligible to
receive for the achievement of such milestone event with respect to such Alnylam Royalty Product:



|                |  |         |     | 
|--------------- |  | ------- | --- | 
|Milestone Event |  | Payment |    
|[*]             |  |         | [*] | 
|[*]             |  |         | [*] | 
|[*]             |  |         | [*] | 

In the event one or more milestone events set out above are skipped for any reason, the payment for such skipped
milestone event(s) will be due at the same time as the payment for the next achieved milestone event.

(c) Notwithstanding
that an Alnylam Royalty Product is directed to a Biodefense Target, if Alnylam or its Related Parties Commercialize or sell such Alnylam Royalty Product other than to a Funding Authority, the milestone payment amounts set forth in
Section 7.2(a) shall then apply in lieu of the amounts set forth in Section 7.2(b).

(d) The milestone payments
described above shall be payable only once in relation to each Alnylam Royalty Product that achieves Approval in a Major Market (or, in the case of an Alnylam Royalty Product directed to a Biodefense Target, an Alnylam Royalty Product that achieves
the First Commercial Sale in a Major Market) (each, a Successful Product). Therefore, unless and until there is a Successful Product directed to a particular Alnylam Target, any of the milestone payments made by ALNYLAM under this
Section in connection with an Alnylam Royalty Product directed to such Target shall be fully creditable against the repeated achievement of such milestone event by any other Alnylam Royalty Product directed to such Target. However, in the event that
there is a Successful Product with respect to an Alnylam Target and Alnylam subsequently begins to Develop or continues to Develop another Alnylam Royalty Product directed to such Target (a Follow-On Product), then, if and when
any of the milestone events set out above is thereafter achieved for such Follow-On Product, in addition to the milestone payment for such milestone event, there will also be due and payable all of the milestone payment(s) for any such milestones
that were achieved for such Follow-On Product prior to the achievement of Approval or First Commercial Sale (as the case may be) in a Major Market of a Successful Product with respect to such Target).



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(e) With respect to any Alnylam Development Product that is a Licensed Product (as such
terms are defined in the Protiva License Agreement) that also meets the definition of an Alnylam Royalty Product under this Agreement, Alnylam shall not be required to pay milestone fees under both such agreements, but, rather, shall pay only the
larger of such milestone fees under such agreements, respectively. Milestone payments shall be made by Alnylam in cash by wire transfer to a bank account of Tekmira pursuant to wire instructions provided by Tekmira to Alnylam in writing in advance.



|7.3 | Royalties.
|--- | ----------

7.3.1 Royalties Payable on Net Sales by Alnylam.As partial consideration for the grant by Tekmira to Alnylam of the
licenses and other rights hereunder, subject to the terms and conditions of this Agreement, Alnylam shall pay to Tekmira royalties on Net Sales of Alnylam Royalty Products in the Territory by Alnylam and its Related Parties as follows:



| | (a) | Where the Net Sales are those of, and are invoiced by, any one of the following:
| | --- | --------------------------------------------------------------------------------



| | (i) | Alnylam or its Affiliate;
| | --- | -------------------------



| | (ii) | a Roche Sublicensee under a sublicense granted in accordance with Section 6.2.2(c);
| | ---- | -----------------------------------------------------------------------------------



| | (iii) | Regulus Therapeutics LLC, under a sublicense granted by Alnylam in compliance with Section 6.2.1; or
| | ----- | ----------------------------------------------------------------------------------------------------



| | (iv) | another Sublicensee under a sublicense granted by Alnylam in connection with, and solely for the purpose of, a Bona Fide Collaboration of Alnylam, and solely for the
purposes of such Bona Fide Collaboration,
| | ---- | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

the applicable running royalty rates shall be as set out in the table
below (all references are to U.S. dollars, and the Net Sales figures are the aggregated sums with respect to Alnylam and all of its Affiliates and Sublicensees):



|                                                                                  |  |                                        |     | 
|--------------------------------------------------------------------------------- |  | -------------------------------------- | --- | 
|Aggregate Calendar Year Net Sales of the
Alnylam Royalty Product in the Territory |  | Royalty(as a percentage 
of Net Sales) |    
|On the first [*]                                                                  |  |                                        | [*] | 
|On the subsequent [*]                                                             |  |                                        | [*] | 
|Greater than [*]                                                                  |  |                                        | [*] | 



| | (b) | In all other cases, the applicable running royalty rates shall be as set out in the table below:
| | --- | ------------------------------------------------------------------------------------------------



|                                                                                  |  |                                        |     | 
|--------------------------------------------------------------------------------- |  | -------------------------------------- | --- | 
|Aggregate Calendar Year Net Sales of the
Alnylam Royalty Product in the Territory |  | Royalty(as a percentage 
of Net Sales) |    
|On the first [*]                                                                  |  |                                        | [*] | 
|On the subsequent [*]                                                             |  |                                        | [*] | 
|On the subsequent [*]                                                             |  |                                        | [*] | 
|Greater than [*]                                                                  |  |                                        | [*] | 



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7.3.2 Royalties Payable on Net Sales by Tekmira.

(a) As partial consideration for the grant by Alnylam to Tekmira of the licenses and other rights hereunder, subject to the terms and
conditions of this Agreement, Tekmira shall pay to Alnylam royalties on Net Sales of Tekmira Development Products that are Tekmira Royalty Products, in the Territory by Tekmira and its Related Parties as follows:



|                                                                                      |  |                                        |     | 
|------------------------------------------------------------------------------------- |  | -------------------------------------- | --- | 
|Aggregate Calendar Year Net Sales of the
Tekmira Development Product in the Territory |  | Royalty(as a percentage 
of Net Sales) |    
|On the first [*]                                                                      |  |                                        | [*] | 
|On the subsequent [*]                                                                 |  |                                        | [*] | 
|On the subsequent [*]                                                                 |  |                                        | [*] | 
|Greater than [*]                                                                      |  |                                        | [*] | 

(b) Subject to the terms and conditions of this Agreement, Tekmira shall pay to Alnylam royalties on Net
Sales of IOC Products that are Tekmira Royalty Products, in the Territory by Tekmira and its Related Parties as follows:



|                                                                      |  |                                        |     | 
|--------------------------------------------------------------------- |  | -------------------------------------- | --- | 
|Aggregate Calendar Year Net Sales of the
IOC Product in the Territory |  | Royalty(as a percentage 
of Net Sales) |    
|On the first [*]                                                      |  |                                        | [*] | 
|On the subsequent [*]                                                 |  |                                        | [*] | 
|Greater than [*]                                                      |  |                                        | [*] | 

7.3.3 Additional Royalty Provisions. Royalties on Royalty Products at the rate set forth
above, shall be payable on a country-by-country and product-by-product basis commencing on the date of First Commercial Sale of such Royalty Product in a country and continuing until the later of the expiration of the last Valid Claim Covering the
Manufacture or Commercialization of such Royalty Product in the country of sale, subject to the following conditions:

(a)
only one royalty shall be due with respect to the same unit of Royalty Product. Moreover, with respect to any Alnylam Development Product that is a Licensed Product (as such



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terms are defined in the Protiva License Agreement) that also meets the definition of an Alnylam Royalty Product under this Agreement, Alnylam shall not be required to pay royalties under both
such agreements, but, rather, shall pay only the larger of such royalties under such agreements, respectively;

(b) no
royalties shall be due upon the sale or other transfer among a Party and its Related Parties, but in such cases the royalty shall be due and calculated upon such Partys or its Related Partys Net Sales to the first independent Third
Party;

(c) no royalties shall accrue on the sale or other disposition of the Royalty Product by a Party or its Related
Parties for use in a clinical study sponsored by such Party or under an IND prior to Regulatory Approval of such Royalty Product in the applicable jurisdiction; and

(d) no royalties shall accrue on the disposition of a Royalty Product in reasonable quantities by a Party or its Related Parties as samples (promotion or otherwise) or as donations (for example, to
non-profit institutions for a non-commercial purpose).

Moreover, the Parties acknowledge and agree that nothing in this Agreement (including
without limitation any exhibits or attachments hereto) shall be construed as representing an estimate or projection of either (i) the number of Royalty Products that will or may be successfully Researched, Developed or Commercialized or
(ii) anticipated sales or the actual value of any Royalty Product, and that the figures set forth in this Article 7 or elsewhere in this Agreement or that have otherwise been discussed by the Parties are merely intended to define a Partys
royalty payment obligations to each other in the event such sales performance is achieved.

7.3.4Reports; Payment of Royalty. During the Agreement Term, commencing upon the First Commercial Sale
of a Royalty Product, the Royalty Payor shall furnish to the Royalty Recipient a quarterly written report showing the quantity of Royalty Products sold in each country (as measured in saleable units of product), the gross sales of such Royalty
Product in each country, total deductions for such Royalty Product for each country included in the calculation of Net Sales, the Net Sales in each country of such Royalty Product subject to royalty payments sold by the Royalty Payor and its Related
Parties during the reporting period and the royalties payable with respect to such Royalty Product under this Agreement. Quarterly reports shall be due no later than the twenty-fifth (25th) day following the close of each Calendar Quarter. Royalties shown to have accrued by each royalty report shall
be due and payable on the date such royalty report is due. The Royalty Payor shall keep complete and accurate records in sufficient detail to enable the royalties and other payments payable hereunder to be determined.

7.4 Necessary Third Party IP.

7.4.1 Third Party License Payments. Tekmira shall pay [*] of all royalties, license fees, milestones and similar payments (if any) payable to Tekmiras Affiliates or to any Third
Parties for the rights to Tekmira Technology licensed to Alnylam under this Agreement under any Tekmira In-License and shall pay [*] of all amounts owed to UBC under the Tekmira-UBC License Agreement in respect of the sublicence to Alnylam
under the UBC Sublicense. Alnylam shall pay [*] of all royalties, license fees, milestones and similar payments (if any) payable to Alnylams Affiliates or to any Third Parties for the rights to Alnylam RNAi Technology, Alnylam IOC
Technology and Alnylam Lipidoid Patent Rights licensed to Tekmira under this Agreement; [*].



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7.4.2Royalty Adjustment. If the Research, Development, Manufacture or
Commercialization of a Royalty Product by a Royalty Payor in accordance with this Agreement infringes Necessary Third Party IP, the applicable royalties in each country in the Territory payable to the Royalty Recipient pursuant to Section 7.3
will be reduced by the amount of royalties paid with respect to Necessary Third Party IP; provided, however, that in no event shall the royalties due be reduced by [*] of the royalties otherwise due (and will not in any case be
reduced below [*] of the amount of royalties that would otherwise be due).

7.4.3 Adjustments for Payments to
UBC.In the event that Alnylam is required to make any payments to UBC in respect of the Tekmira Technology or Tekmira Collaboration IP licensed to Alnylam pursuant to the UBC Sublicense Agreement or pursuant to a direct license agreement
between UBC and Alnylam as a result of the default by, or bankruptcy or insolvency of, Tekmira as more fully described in Section 3.4 and Article 17.0 of the Tekmira-UBC License Agreement, then Alnylam shall be entitled to offset any amounts
payable by Alnylam to Tekmira under this Agreement (or under the Protiva License Agreement if payments are due instead to Protiva pursuant to Sections 7.2(e) or 7.3.3(a)) by the amount of Alnylams payments to UBC until such amounts have been
credited in full.

7.4.4 Adjustment for More Favorable Terms. If after the Effective Date, Tekmira grants to a Third
Party any license under the Tekmira Technology substantially similar in scope and substance to the license granted to Alnylam by Tekmira under this Agreement on terms calling for milestone fees and royalties that are, as a whole, more favorable (to
the licensee in such other license) than the comparable terms contained in this Article VII with respect to milestones fees and royalties payable by Alnylam, then Tekmira shall so notify Alnylam, and at Alnylams option, such more favorable
financial terms granted to such Third Party shall apply to Alnylams or its Affiliates or Sublicensees license for Alnylam Royalty Products, rather than the milestone fees and royalty terms under this Article VII.

7.5 Collaboration and Manufacturing Activity Funding.

7.5.1 Collaboration Funding. As consideration for the performance by Tekmira of its obligations under the Collaboration,
Alnylam agrees to fund the FTEs provided by Tekmira as follows:

(a) During the Collaboration Term, the compensation to
Tekmira for up to [*] FTEs in each Contract Year of the Collaboration Term to perform its obligations under the Collaboration as provided in the Research Plan shall not be less than an aggregate of [*] in each such Contract Year; and

(b) the use of any additional FTEs in each Contract Year of the Collaboration Term as approved by the JRC shall be funded at
the FTE Rate pro-rated to the duration that such FTEs actually perform such activities under the Collaboration in accordance with the Research Plan, and as documented by Tekmira pursuant to Section 7.5.3 below.

Tekmira acknowledges and agrees that the FTE Rate reflects Tekmiras fully-loaded costs and expenses in performing its obligations under the
Collaboration and that Tekmira is solely responsible



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for its costs and expenses in performing its obligations under the Collaboration. However, Alnylam agrees to reimburse Tekmira for any extraordinary out-of pocket costs and expenses incurred by
Tekmira in performing its obligations under the Collaboration in accordance with the Research Plan to the extent that such costs and expenses are approved by the JRC in advance in writing and are reasonable, documented costs and expenses actually
and directly incurred by Tekmira. After the Collaboration Term, Alnylams funding obligation shall cease and (to the extent mutually agreed by the Parties) each Party shall be responsible for funding its own participation in the Collaboration
and all expenses incurred by such Party in connection therewith.

7.5.2 Product Manufacturing Cost. As consideration
for the performance by Tekmira of the Manufacturing Activities and the delivery of quantities of bulk finished dosage form of Alnylam Royalty Product Manufactured and supplied by Tekmira to Alnylam pursuant to Section 5.1(a), Alnylam agrees to
purchase each such batch of bulk finished dosage form at a price comprised of:



| | (a) | [*]; and
| | --- | --------



| | (b) | [*].
| | --- | ----

Tekmira shall provide Alnylam upon
request with an estimate of Tekmiras per batch price for any Alnylam Royalty Product.

7.5.3 Invoicing and
Payment. Tekmira shall, within thirty (30) days following the end of each calendar month during the Collaboration Term, deliver to Alnylam a detailed invoice (a) stating the number of FTEs that performed activities under the
Collaboration during such calendar month and the nature of such work, and (b) detailing any out-of-pocket expenses invoiced to Tekmira to be reimbursed by Alnylam pursuant to Section 5.1(b), 7.5.1 or 7.5.2, and accompanied by adequate
documentation of such expenses. All undisputed payments shall be made by Alnylam within forty-five (45) days of its receipt of such an invoice.



|7.6 | Audits.
|--- | -------

7.6.1Access. Upon the written request of a Party and not more than once in each Calendar Year, the other Party
and/or its Related Parties shall permit an independent certified public accounting firm of nationally recognized standing selected by the requesting Party and reasonably acceptable to the other Party, at the requesting Partys expense except as
set forth below, to have access during normal business hours to such of the records of the other Party as may be reasonably necessary to verify the accuracy of the royalty, FTE, expense and other financial reports required to be delivered under this
Agreement for any Calendar Year ending not more than thirty-six (36) months prior to the date of such request, for the sole purpose of verifying the basis and accuracy of payments made under this Article 7.

7.6.2Discrepancies; Default Interest. If such accounting firm identifies a discrepancy made during such period, the
appropriate Party shall pay the other Party the amount of the discrepancy within twenty (20) Business Days of the date the requesting Party delivers to the other Party such accounting firms written report so concluding, or as otherwise agreed
by the Parties in writing. Such written report shall be binding upon the Parties. The fees charged by such accounting firm shall be paid by the requesting Party, unless such discrepancy represents an underpayment by the other Party of more than the
lesser of [*] or [*] of the total amounts due hereunder, in which case such fees shall



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be paid by the other Party. Unless an audit for such Calendar Year has been commenced upon the expiration of [*] following the end of such Calendar Year, the calculation of royalties and
other payments payable with respect to such Calendar Year shall be binding and conclusive upon both Parties, and each Party and its Related Parties shall be released from any further liability or accountability with respect to royalties and other
payments for such Calendar Year. All amounts due and owing to a Party hereunder by the other Party but not paid by the other Party on the due date thereof shall bear interest at the rate of one per cent (1%) per month.

7.6.3 Confidentiality. Each Party shall treat all financial information subject to review under this Section 7.6 or under any
sublicense agreement in accordance with the confidentiality and non-use provisions of Article 8 of this Agreement, and shall cause its accounting firm to enter into an acceptable confidentiality agreement with the other Party and/or its Related
Parties obligating it to retain all such information in confidence pursuant to such confidentiality agreement.

7.7Payment Exchange Rate. All dollar amounts in this Agreement are United States dollar amounts. All payments to be made under this Agreement, including without limitation, any payments based on revenues generated by Related Parties in respect
of Royalty Products, shall be made in United States dollars and shall be paid by bank wire transfer in immediately available funds to such bank account in Canada or the United States, as may be designated in writing by the receiving Party from time
to time. In the case of sales outside the United States by any Party and its Related Parties, the rate of exchange to be used in computing the amount of currency equivalent in United States dollars due shall be made at the rate of exchange utilized
by such Party in its worldwide accounting system, prevailing on the third to the last Business Day of the month preceding the month in which such sales are recorded.

7.8 Income Tax Withholding. (a) If laws, rules or regulations require withholding of income taxes or other taxes imposed upon payments set forth in this Article 7, the paying Party
shall make such withholding payments as required and subtract such withholding payments from the payments set forth in this Article 7. The paying Party shall submit appropriate proof of payment of the withholding taxes to the receiving Party within
a reasonable period of time. At the request of the receiving Party, the paying Party shall, at its cost, give the receiving Party such reasonable assistance, which shall include the provision of appropriate certificates of such deductions made
together with other supporting documentation as may be required by the relevant tax authority, to evidence such payment and to enable the receiving Party to claim exemption from such withholding or other tax imposed or to obtain a repayment thereof
or reduction thereof, and shall upon request provide such additional documentation from time to time as is reasonably required to confirm the payment of tax.

(b) Tekmira represents and warrants that, as of the Effective Date, it is a resident of Canada for Canadian income tax purposes and for purposes of the Tax Convention. Alnylam represents and warrants
that, as of the Effective Date, it is a resident of the United States of America for United States income tax purposes and for purposes of the Tax Convention. The paying Party confirms that, with regard to any payment under Article 7, it will
withhold at the rate applicable under the Tax Convention if and to the extent that the Tax Convention governs the withholding from such payment required by applicable law. Tekmira and Alnylam agree to provide written notice to the other Party if its
rights or obligations under the Agreement are assigned to a Person that is not a resident of the United States of America (in the case of Alnylam) for United States income tax purposes and for purposes of the Tax Convention, or a resident of Canada
(in the case of Tekmira) for Canadian income tax purposes and for purposes of the Tax Convention.



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|8. | CONFIDENTIALITY AND PUBLICATION
|-- | -------------------------------

8.1 Nondisclosure Obligation. (a) All Confidential Information disclosed by one Party to the other Party hereunder shall be maintained in confidence by the receiving Party and shall not
be disclosed to a Third Party or used for any purpose except as set forth herein without the prior written consent of the disclosing Party, except to the extent that such Confidential Information:



| | (i) | is known by the receiving Party at the time of its receipt, and not through a prior disclosure by the disclosing Party, as documented by the receiving Partys
business records;
| | --- | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| | (ii) | is in the public domain by use and/or publication before its receipt from the disclosing Party, or thereafter enters the public domain through no fault of the receiving
Party;
| | ---- | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| | (iii) | is subsequently disclosed to the receiving Party by a Third Party who may lawfully do so and is not under an obligation of confidentiality to the disclosing Party; or
| | ----- | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------



| | (iv) | is developed by the receiving Party independently of Confidential Information received from the disclosing Party, as documented by the receiving Partys business
records.
| | ---- | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------

(b) Notwithstanding the obligations of confidentiality and non-use set forth above and in
Section 8.2.2 below, a receiving Party may provide Confidential Information disclosed to it, and disclose the existence and terms of this Agreement and the other Transaction Documents, in each case as may be reasonably required in order to
perform its obligations and to exploit its rights under this Agreement and the other Transaction Documents, and specifically to (i) Related Parties, and their employees, directors, agents, consultants, advisors and/or other Third Parties for
the performance of its obligations hereunder (or for such entities to determine their interest in performing such activities) in accordance with this Agreement in each case who are obligated to keep such Confidential Information confidential;
(ii) governmental or other Regulatory Authorities in order to obtain patents or perform its obligations or exploit its rights under this Agreement; provided, that such Confidential Information shall be disclosed only to the extent
reasonably necessary to do so, (iii) the extent required by applicable law, including without limitation by the rules or regulations of the United States Securities and Exchange Commission or similar regulatory agency in a country other than
the United States or of any stock exchange or Nasdaq, (iv) any bona fide actual or prospective underwriters, investors, lenders or other financing sources and any bona fide actual or prospective collaborators or strategic partners and to
consultants and advisors of such Party, in each case who are obligated to keep such Confidential Information confidential, (v) to Third Parties to the extent a Party is required to do so pursuant to the terms of an In-License or a Pre-Existing
Alnylam Alliance Agreement, and (vi) UBC to the extent a Party is required to do so in order to comply with its obligations to UBC under the UBC Sublicense Documents or the Tekmira-UBC License Agreement, as the case may be.

If a Party is required by judicial or administrative process to disclose Confidential Information that is subject to the non-disclosure provisions of
this Section 8.1 or Section 8.2, such Party shall promptly inform the other Party of the disclosure that is being sought in order to provide the other Party an opportunity to challenge or limit the disclosure obligations. Confidential
Information that is disclosed by judicial or administrative process shall remain otherwise subject to the confidentiality and non-use



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provisions of this Section 8.1 and Section 8.2, and the Party disclosing Confidential Information pursuant to law or court order shall take all steps reasonably practical, including
without limitation seeking an order of confidentiality, to ensure the continued confidential treatment of such Confidential Information. In addition to the foregoing restrictions on public disclosure, if either Party concludes that a copy of this
Agreement must be filed with the United States Securities and Exchange Commission or similar regulatory agency in a country other than the United States, such Party shall seek the maximum confidential treatment available under applicable law,
provide the other Party with a copy of this Agreement showing any sections as to which the Party proposes to request confidential treatment, provide the other Party with an opportunity to comment on any such proposal and to suggest additional
portions of this Agreement for confidential treatment, and take such Partys reasonable comments into consideration before filing this Agreement.

8.2 Publication and Publicity.

8.2.1 Publication. Tekmira
and Alnylam each acknowledge the other Partys interest in publishing the results of the Collaboration. Each Party also recognizes the mutual interest in obtaining valid patent protection and in protecting business interests and trade secret
information. Consequently, except for disclosures permitted pursuant to Section 8.1 and 8.2.2(b), either Party, its Affiliates, or their respective employees or consultants wishing to make a publication or a disclosure to a Third Party relating
to the Collaboration or any Royalty Product of the other Party shall deliver to the other Party a copy of the proposed written publication or an outline of an oral disclosure at least thirty (30) days prior to submission for publication or
presentation. The reviewing Party shall have the right (a) to propose modifications to the publication or presentation for patent reasons, trade secret reasons or business reasons, or (b) to request a reasonable delay in publication or
presentation in order to protect patentable information. If the reviewing Party requests a delay, the publishing Party shall delay submission or presentation for a period of thirty (30) days to enable patent applications protecting each
Partys rights in such information to be filed in accordance with Article 10 below. Upon expiration of such thirty (30) days, the publishing Party shall be free to proceed with the publication or presentation. If the reviewing Party
requests modifications to the publication or presentation, the publishing Party shall edit such publication to prevent disclosure of trade secret or proprietary business information prior to submission of the publication or presentation. With
respect to any proposed publications or disclosures by investigators or academic or non-profit collaborators, such materials shall be subject to review under this Section 8.2 to the extent that Tekmira or Alnylam, as the case may be, has the
right and ability (after using reasonable efforts) to do so. For the avoidance of doubt, subject to its obligations under Section 8.1, each Party may make publications and disclosures to Third Parties relating to its own Royalty Products
outside of the Collaboration without any obligation to permit the other Party to review or comment on such publication or disclosure.

8.2.2 Publicity. (a) Except as set forth in Section 8.1 above and clause (b) below, no disclosure of the existence of, or the terms of, this Agreement or the other Transaction
Documents may be made by either Party, and no Party shall use the name, trademark, trade name or logo of the other Party or its employees in any publicity, news release or disclosure relating to this Agreement or its subject matter, without the
prior express written permission of the other Party, except as may be required by law or expressly permitted by the terms hereof.

(b) The Parties expect that upon the Effective Date of this Agreement Tekmira will, and Alnylam may, issue separate press releases publicizing the execution of this Agreement and the



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Protiva License Agreement, and that prior to the execution of this Agreement, Alnylam and Tekmira shall agree in writing upon any such press releases. After such initial press releases, neither
Party shall issue a press release or public announcement relating to this Agreement without the prior written approval of the other Party, which approval shall not be unreasonably withheld, except that a Party may (i) once a press release or
other written statement is approved in writing by both Parties, make subsequent public disclosure of the information contained in such press release or other written statement without the further approval of the other Party, and (ii) issue a
press release or public announcement as required, in the reasonable judgment of such Party, by applicable law, including without limitation by the rules or regulations of the United States Securities and Exchange Commission or similar regulatory
agency in a country other than the United States or of any stock exchange or NASDAQ.



|9. | REPRESENTATIONS AND WARRANTIES; INDEMNIFICATION
|-- | -----------------------------------------------

9.1 Mutual Representations and Warranties. Each Party represents and warrants to the other Party that each representation and warranty made by it under this Article 9 that is made as of or
on the Effective Date, is also made by it as of and upon the Condition Satisfaction Date. Each Party represents and warrants to the other Party that as of the Effective Date of this Agreement:

9.1.1 It is duly organized and validly existing under the laws of its jurisdiction of incorporation or formation, and has full
corporate or other power and authority to enter into this Agreement and the other Transaction Documents to which it is a party, and to carry out the provisions hereof. Further, except for any Regulatory Approvals, pricing and/or reimbursement
approvals, manufacturing approvals and/or similar approvals necessary for the Research, Development, Manufacture or Commercialization of the Royalty Products, all necessary consents, approvals and authorizations of all government authorities
required to be obtained by such Party as of the Effective Date in connection with the execution, delivery and performance of this Agreement and the other Transaction Documents to which it is a party have been obtained by the Effective Date.

9.1.2 It is duly authorized to execute and deliver this Agreement and the other Transaction Documents to which it is a
party, and to perform its obligations hereunder, and the person or persons executing this Agreement and the other Transaction Documents to which it is a party on its behalf has been duly authorized to do so by all requisite corporate action.

9.1.3 This Agreement and the other Transaction Documents to which it is a party are legally binding upon it and
enforceable in accordance with its terms. Except as set forth in Section 9.1.3 of Schedule 9 to this Agreement, the execution, delivery and performance of this Agreement and the other Transaction Documents to which it is a party by it does not
conflict with any agreement, instrument or understanding, oral or written, to which it is a party and by which it may be bound, or with its charter or by-laws.

9.1.4 Except, in Alnylams case, as set forth in Section 9.1.3 of Schedule 9 to this Agreement, it has not, and will not during the Agreement Term, grant any right to any Third Party
which would conflict with the rights granted to the other Party hereunder. It has (or will have at the time performance is due) maintained and will maintain and keep in full force and effect all agreements (including license agreements) and filings
(including patent filings) necessary in such Partys reasonable judgment to perform its obligations hereunder. Further, (a) the execution and delivery of



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this Agreement and the other Transaction Documents to which it is a party by such Party, (b) the performance of such Partys obligations hereunder and the other Transaction Documents to
which it is a party and (c) the licenses and sublicenses to be granted by such Party pursuant to this Agreement or the other Transaction Documents do not conflict with or violate any requirement of applicable laws or regulations existing as of
the Effective Date and applicable to such Party.

9.1.5 Neither Party nor any of its Affiliates has been debarred or is
subject to debarment and neither Party nor any of its Affiliates will use in any capacity, in connection with the Collaboration or, in the case of Tekmira the Manufacturing Activities, any person or entity that has been debarred pursuant to
Section 306 of the United States Federal Food, Drug, and Cosmetic Act, or that is the subject of a conviction described in such section. Each Party agrees to inform the other Party in writing immediately if it or any Person that is performing
activities in the Collaboration, and Tekmira agrees to inform Alnylam immediately in writing if it or any person or entity that is performing the Manufacturing Activities, is debarred or is the subject of a conviction described in Section 306,
or if any action, suit, claim, investigation or legal or administrative proceeding is pending or, to the best of the notifying Partys knowledge, is threatened, relating to the debarment or conviction of the notifying Party or any person or
entity used in any capacity by such Party or any of its Affiliates in connection with the Collaboration or the Manufacturing Activities, as the case may be.

9.2 Alnylam Representations and Warranties. Alnylam represents and warrants to Tekmira that as of the Effective Date of this Agreement:

9.2.1 To Alnylams knowledge, the Alnylam Core Patent Rights and the Patent Rights comprising Alnylam IOC Technology exist
and are not invalid or unenforceable, in whole or in part;

9.2.2 Except as set forth on Section 9.1.3 of Schedule
9 to this Agreement, it has not assigned, transferred, conveyed or otherwise encumbered its right, title and interest in the Alnylam RNAi Technology, the Alnylam Lipidoid Patent Rights, Alnylam IOC Technology or the Alnylam Collaboration IP or
Alnylams interest in Joint Collaboration IP in a manner that conflicts with any rights granted to Tekmira hereunder;

9.2.3There are no claims, judgments or settlements actually made or, to Alnylams knowledge, threatened, against or amounts
with respect thereto owed by, Alnylam or its Affiliates relating to the Alnylam RNAi Technology, Alnylam Lipidoid Patent Rights or Alnylam IOC Technology;

9.2.4 Alnylams obligations under the Collaboration Research Plan will be performed with requisite care, skill and diligence, in accordance with applicable laws and industry standards, and by
individuals who are appropriately trained and qualified;

9.2.5All siRNA, miRNA and other materials supplied by
Alnylam to be used by Tekmira in the manufacture of Alnylam Royalty Products will have been Manufactured in accordance with the master batch records and released in accordance with the applicable specifications for such siRNA, miRNA and other
materials, cGMP (if applicable), and all other applicable laws; and

9.2.6 None of the terms of the Existing Alnylam
In-Licenses or Pre-Existing Alnylam Alliance Agreements prohibit or limit the use by Tekmira, for the Research, Development, Manufacture or Commercialization of the Tekmira Royalty Products, of any Intellectual Property Rights granted by Tekmira to
Alnylam hereunder.



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9.3 Tekmira Representations and Warranties. Tekmira represents and warrants to
Alnylam that:

9.3.1 The Patent Rights listed in Schedule 1.73 are all the Tekmira Patent Rights existing on the
Effective Date. As of the Effective Date, to Tekmiras knowledge, the Tekmira Patent Rights exist and are not invalid or unenforceable, in whole or in part. To Tekmiras knowledge, the conception, development and reduction to practice of
the Tekmira Patent Rights and the Tekmira Collaboration IP and Joint Collaboration IP existing on the Effective Date have not constituted or involved the misappropriation of trade secrets or other rights or property of any person or entity;

9.3.2 The Patent Rights identified on Schedule 1.73 as Controlled by Tekmira through an ownership interest are owned
by Tekmira free and clear of any liens or encumbrances. The Patent Rights identified on Schedule 1.73 as the [*] and any Tekmira Collaboration IP existing on the Effective Date have all been duly assigned to [*] in the
Alnylam Field on or prior to the Effective Date. Such assignment of Patent Rights has been made, and will be properly recorded in the appropriate patent office in the United States as soon as possible, but in no event later than [*] after the
Effective Date, and in the appropriate patent offices in the remainder of the Territory as soon as possible, but in no event later than [*] after the Effective Date, and not in violation of any obligations to any Third Parties. The Patent
Rights identified on Schedule 1.73 as Controlled by Tekmira under a license from a Third Party (including without limitation, the Patent Rights identified as the [*]) are all licensed by Tekmira from [*] under the terms of
the [*] License Agreement. There are no Patent Rights comprising Tekmira Collaboration IP existing on the Effective Date. The [*] License Agreement is legally binding on the parties thereto, enforceable in accordance with its terms,
and neither Tekmira, nor to Tekmiras knowledge, [*], is in default of the [*] License Agreement. Tekmira has provided Alnylam with a complete and correct copy of the [*] License Agreement, and shall not amend or otherwise
modify the [*] License Agreement in a manner that would impair or conflict with the rights granted to Alnylam under this Agreement without Alnylams prior written consent;

9.3.3 Tekmira has not assigned, transferred, conveyed or otherwise encumbered its right, title and interest in the Tekmira
Technology or the Patent Rights identified on Schedule 1.73, the Tekmira Collaboration IP or its interest in Joint Collaboration IP or in the Tekmira IOC Technology, in a manner that conflicts with the rights granted to Alnylam hereunder;

9.3.4 There are no (a) claims, judgments or settlements actually made or, to Tekmiras knowledge,
threatened, against, or amounts with respect thereto owed by, Tekmira or its Affiliates relating to the Tekmira Technology or any Patent Rights or Know-How licensed to Alnylam pursuant to the UBC Sublicense, nor (b) any pending or threatened
claims or litigation relating to the Tekmira Technology or any Patent Rights or Know-How licensed to Alnylam pursuant to the UBC Sublicense. Tekmira will promptly notify Alnylam in writing should it become aware of any claims asserting such
infringement;

9.3.5 Tekmiras obligations under the Collaboration Research Plan and the Manufacturing Activities
will be performed with requisite care, skill and diligence, in accordance with applicable



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laws and industry standards, and by individuals who are appropriately trained and qualified, and at the time of delivery to Alnylam, the Alnylam Royalty Products Manufactured and supplied by
Tekmira under this Agreement (a) will have been Manufactured in accordance with the master batch records and released in accordance with the Specifications (as such term is defined in the Supply Agreement) for such Alnylam Royalty Product and
cGMP (if applicable), and all other applicable laws, and (b) will not be adulterated or misbranded under all applicable laws; and

9.3.6 Prior to the Effective Date Tekmira re-sold all the Shares in a manner consistent with the terms of the Original Agreement, and pursuant to and in accordance with the Plan of Distribution and
other terms and conditions set forth in the Registration Statement on Form S-3ASR filed by Alnylam on January 18, 2007, and all other applicable law. During the period from the Original Effective Date through the Effective Date, Tekmira was and
is not an investment company under the U.S. Investment Company Act of 1940, as amended, and during the Agreement Term Tekmira shall take, all actions necessary to ensure that it is not an investment company under the U.S.
Investment Company Act of 1940, as amended.

9.3.7 As of the Effective Date, (a) Tekmira is not and will not be in
default in the performance or in breach of any of its obligations pursuant to any Transaction Document, (b) no representation or warranty of Tekmira set forth in any Transaction Document shall have been untrue when made and (c) Tekmira
shall not have committed any fraud or material misstatement or omission of fact in its dealings with Alnylam pursuant to the Transaction Documents.

9.3.8 The Merck Settlement Agreement does not provide that any payments other than milestone and royalty payments will be owed or would be owed by the Merck Entities to Protiva or its Affiliates
with respect to the development or commercialization of any product due to the coverage of such product by any claims (whether issued or pending) covering any Restricted Joint Invention.

9.4 Warranty Disclaimer. EXCEPT AS OTHERWISE EXPRESSLY PROVIDED IN THIS AGREEMENT OR IN THE OTHER TRANSACTION DOCUMENTS,
NEITHER PARTY MAKES ANY REPRESENTATION OR EXTENDS ANY WARRANTY OR CONDITIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED, TO THE OTHER PARTY WITH RESPECT TO ANY INTELLECTUAL PROPERTY, ROYALTY PRODUCTS, GOODS, THE COLLABORATION, RIGHTS OR OTHER SUBJECT
MATTER OF THIS AGREEMENT OR THE OTHER TRANSACTION DOCUMENTS AND HEREBY DISCLAIMS ALL IMPLIED CONDITIONS, REPRESENTATIONS, AND WARRANTIES, INCLUDING WITHOUT LIMITATION, WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
NONINFRINGEMENT OR VALIDITY OF PATENT RIGHTS WITH RESPECT TO ANY AND ALL OF THE FOREGOING. EACH PARTY HEREBY DISCLAIMS ANY REPRESENTATION OR WARRANTY THAT THE DEVELOPMENT, MANUFACTURE OR COMMERCIALIZATION OF ANY ROYALTY PRODUCT PURSUANT TO THIS
AGREEMENT WILL BE SUCCESSFUL OR THAT ANY PARTICULAR SALES LEVEL WITH RESPECT TO SUCH ROYALTY PRODUCTS WILL BE ACHIEVED.

9.5 Indemnification.

9.5.1 Indemnification by Tekmira. Tekmira shall indemnify, hold harmless, and defend Alnylam, its Affiliates, and their respective directors, officers, employees, consultants and
agents



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(Alnylam Indemnitees) from and against any and all Third Party claims, suits, losses, liabilities, damages, costs, fees and expenses (including reasonable legal fees)
(collectively, Losses) arising out of or resulting from, directly or indirectly, (a) any breach of, or inaccuracy in, any representation or warranty made by Tekmira in this Agreement or in the other Transaction Documents, or
any breach or violation of any covenant or agreement of Tekmira in or pursuant to this Agreement or in the other Transaction Documents, (b) the negligence or willful misconduct by or of Tekmira, its Affiliates and its and their respective
Sublicensees, and their respective directors, officers, employees, consultants and agents, (c) the Research, Development, Manufacture or Commercialization of a Tekmira Royalty Product to the extent such activities are not performed by an
Alnylam Indemnitee, or (d) the performance by Tekmira of its obligations under the Collaboration or the Manufacturing Activities. The indemnification obligations under this Agreement exclude Losses arising out of Infringement Claims resulting
from Tekmiras exercise in accordance with the terms of this Agreement of any Intellectual Property Rights granted by Alnylam to Tekmira or its Affiliates hereunder. Tekmira shall have no obligation to indemnify the Alnylam Indemnitees to the
extent that the Losses arise out of or result from, directly or indirectly, (i) any breach of, or inaccuracy in, any representation or warranty made by Alnylam in this Agreement or in the other Transaction Documents, (ii) any breach or
violation of any covenant or agreement of Alnylam in or pursuant to this Agreement or the other Transaction Documents, or (iii) the negligence or willful misconduct by or of any of the Alnylam Indemnitees or Alnylam Sublicensees.

9.5.2 Indemnification by Alnylam. Alnylam shall indemnify, hold harmless, and defend Tekmira, its Affiliates and
their respective directors, officers, employees, consultants and agents (Tekmira Indemnitees) from and against any and all Losses arising out of or resulting from, directly or indirectly, (a) any breach of, or inaccuracy in,
any representation or warranty made by Alnylam in this Agreement or in the other Transaction Documents, or any breach or violation of any covenant or agreement of Alnylam in or pursuant to this Agreement or the other Transaction Documents,
(b) the negligence or willful misconduct by or of Alnylam, its Affiliates and its and their respective Sublicensees, and their respective directors, officers, employees, consultants and agents, (c) the Research, Development, Manufacture or
Commercialization of an Alnylam Royalty Product to the extent such activities are not performed by a Tekmira Indemnitee, or (d) the performance by Alnylam of its obligations under the Collaboration. The indemnification obligations under this
Agreement exclude Losses arising out of Infringement Claims resulting from Alnylams exercise in accordance with the terms of this Agreement or the UBC Sublicense Documents of any Intellectual Property Rights granted by Tekmira to Alnylam or
its Affiliates hereunder or thereunder. Furthermore, Alnylam shall have no obligation to indemnify the Tekmira Indemnitees to the extent that the Losses arise out of or result from, directly or indirectly, (i) any breach of, or inaccuracy in,
any representation or warranty made by Tekmira in this Agreement or in the other Transaction Documents, (ii) any breach or violation of any covenant or agreement of Tekmira in or pursuant to this Agreement or the other Transaction Documents,
(iii) the negligence or willful misconduct by or of any of the Tekmira Indemnitees or Tekmira Sublicensees, and/or (iv) the Research, Development or Manufacturing of an Alnylam Royalty Product to the extent such activities are performed by
a Tekmira Indemnitee.

9.5.3 Indemnification Procedure.In the event of any such claim against any
Tekmira Indemnitee or Alnylam Indemnitee (individually, an Indemnitee), the indemnified Party shall promptly notify the other Party in writing of the claim and the indemnifying Party shall manage and control, at its sole expense,
the defense of the claim and its settlement. The Indemnitee shall cooperate with the indemnifying Party and may, at its option and expense, be represented in any such action or



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proceeding. The indemnifying Party shall not be liable for any settlements, litigation costs or expenses incurred by any Indemnitee without the indemnifying Partys written authorization.
Notwithstanding the foregoing, if the indemnifying Party believes that any of the exceptions to its obligation of indemnification of the Indemnitees set forth in Sections 9.5.1 or 9.5.2 may apply, the indemnifying Party shall promptly notify the
Indemnitees, which shall then have the right to be represented in any such action or proceeding by separate counsel at their expense; provided, that the indemnifying Party shall be responsible for payment of such expenses if the Indemnitees
are ultimately determined to be entitled to indemnification from the indemnifying Party.

9.6 Limitation of
Liability. NEITHER PARTY HERETO WILL BE LIABLE FOR SPECIAL, INCIDENTAL, CONSEQUENTIAL OR PUNITIVE DAMAGES ARISING OUT OF THIS AGREEMENT OR THE OTHER TRANSACTION DOCUMENTS OR THE EXERCISE OF ITS RIGHTS HEREUNDER OR THEREUNDER, INCLUDING LOST
PROFITS ARISING FROM OR RELATING TO ANY BREACH OF THIS AGREEMENT, REGARDLESS OF ANY NOTICE OF SUCH DAMAGES, EXCEPT AS A RESULT OF A PARTYS WILLFUL MISCONDUCT OR A MATERIAL BREACH OF THE CONFIDENTIALITY AND NON-USE OBLIGATIONS IN ARTICLE 8.
NOTHING IN THIS SECTION 9.6 IS INTENDED TO LIMIT OR RESTRICT THE INDEMNIFICATION RIGHTS OR OBLIGATIONS OF EITHER PARTY.

9.7 Injunctive Relief. Each Party acknowledges the competitive and technical value and the sensitive and confidential
nature of the Confidential Information, and agrees that monetary damages alone will be inadequate to protect the other Partys interests against any actual or threatened material breach of Article 8 of this Agreement. Each Party further
acknowledges the importance of the standstill obligations in Section 12.17 to the other Partys business and corporate development, and agrees that monetary damages alone will be inadequate to protect the other Partys interests
against any actual or threatened material breach of Section 12.17 of this Agreement. Accordingly, each Party consents to the granting of specific performance and injunctive or other equitable or other relief to the other Party in respect of any
actual or threatened breach of Article 8 or Section 12.17 of this Agreement, without proof of actual damages. These specific remedies are in addition to any other remedy to which the Parties may be entitled at law or in equity.

9.8 Insurance. Each Party shall secure and maintain in full force and effect throughout the term of this Agreement (and for
at least three (3) years thereafter for claims made coverage), insurance with coverage and minimum policy limits set forth as follows:

(a) Alnylam:

(i) Workers Compensation, (to the extent applicable)
including coverage for occupational disease, with benefits determined by statute, and at least [*] of coverage for Employers Liability.

(ii) Comprehensive General LiabilityandPersonal/Advertising Injury, including coverage for contractual liability assumed by such Party and coverage for such Partys independent
contractor(s), with per occurrence limits of at least [*] each and a general aggregate limit of [*].

(iii)
Umbrella Liability, exclusive of the coverage provided by the policies listed above, with a limit per occurrence of at least [*].



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(vi) Products Liability, exclusive of the coverage provided by the Comprehensive
General Liability policy, with an aggregate limit of at least (i) [*] upon the earlier of (x) initiation of clinical studies of a Royalty Product by such Party or (y) the commencement of Manufacturing of a Royalty Product by or
on behalf of such Party, and (ii) [*] upon the First Commercial Sale of a Royalty Product by such Party; and

(b)
Tekmira:

(i) Workers Compensation, (to the extent applicable) including coverage for occupational disease, with
benefits determined by statute, and at least [*] of coverage for Employers Liability.

(ii) Commercial General
Liability, including coverage for contractual liability assumed by such Party and coverage for such Partys independent contractor(s), with per occurrence limits of at least [*] each and a general aggregate limit of
[*].

(iii) Umbrella / Excess Liability, exclusive of the coverage provided by the policies listed above, with a
limit per occurrence of at least [*].

(iv) Products Liability, exclusive of the coverage provided by the
Commercial General Liability policy, with an aggregate limit of at least (i) [*] per claim and [*] on an annual aggregate basis upon the earlier of (x) initiation of clinical studies of a Royalty Product by such Party or
(y) the commencement of Manufacturing of a Royalty Product by or on behalf of such Party, and (ii) [*] upon the First Commercial Sale of a Royalty Product by such Party or an amount mutually agreed to by both Parties.

Each Party shall furnish to the other Party a certificate from an insurance carrier (having a minimum AM Best rating of A) demonstrating the insurance
requirements set forth above. The insurance certificate shall confirm each of the following: (x) such insurance is primary and non-contributing to any liability insurance carried by the other Party; and (y) the insured shall endeavor to
provide thirty (30) days prior written notice to the other Party in the event of cancellation. Provided that Tekmira, acting reasonably, determines it is not prejudicial to its business interests (and provided that such provision is available
from Tekmiras then-current insurance underwriter) Tekmira will add Alnylam as an additional insured under its Products Liability Policy at any time during the term of this Agreement (and in any event, Tekmira shall use commercially
reasonable efforts to add Alnylam as an additional insured under its Products Liability Policy before the first commercial sale of any Alnylam Royalty Product). Alnylam agrees that upon Tekmira adding Alnylam as an additional
insured under its Products Liability Policy, Alnylam will also add Tekmira as an additional insured under its own Products Liability policy.



|10. | INTELLECTUAL PROPERTY OWNERSHIP, PROTECTION AND RELATED MATTERS
|--- | ---------------------------------------------------------------

10.1 Inventorship and Ownership of Collaboration IP.(a) Inventorship for patentable inventions conceived or reduced to practice during the course of the performance of
activities pursuant to this Agreement shall be determined in accordance with United States patent laws for determining inventorship.



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(b) The Parties hereby acknowledge and agree that except as otherwise provided in this
Agreement, any Intellectual Property Rights owned by either Party prior to the Original Effective Date shall remain owned by such Party. Alnylam shall own the entire right, title and interest in and to all Alnylam Collaboration IP. Subject to clause
(c) below, Tekmira shall own the entire right, title and interest in and to all Tekmira Collaboration IP. The Parties shall jointly own any Joint Collaboration IP.

(c) Subject to the grant of license rights between the Parties set forth in this Agreement, Tekmira agrees to promptly assign its right, title and interest in and to all Tekmira Collaboration IP to UBC,
(i) all in accordance with the terms of the UBC-Tekmira License Agreement and the UBC Sublicense Documents, and (ii) subject to the grant by UBC of an exclusive license to Tekmira in the Alnylam Field under the UBC-Tekmira License
Agreement, and, subject to Section 6.4(a)(ii), to the grant by Tekmira of an exclusive license to Alnylam in the Alnylam Field under the UBC Sublicense Documents.

10.2 Prosecution and Maintenance of Patent Rights.

10.2.1
Alnylam Patent Rights and Know-How. Alnylam has the sole responsibility to, at Alnylams discretion, file, prosecute, conduct ex parte and inter partes proceedings (including the defense of any interference or opposition
proceedings) and maintain, in the Territory, all Patent Rights comprising Alnylam RNAi Technology, Alnylam IOC Technology or Alnylam Collaboration IP, in Alnylams name.

10.2.2Tekmira Patent Rights and Know-How. Tekmira has the sole responsibility to, at Tekmiras discretion, file, prosecute, conduct ex parte and inter partes proceedings,
(including the defense of any interference or opposition proceedings), and maintain, in the Territory, all Patent Rights comprising Tekmira Technology or Tekmira IOC Technology, in Tekmiras name, or Tekmira Collaboration IP, in UBCs
name.

10.2.3Joint Collaboration IP. Subject to Tekmiras continuing right to the prior review of, comment
on, revision to and approval of material documents, which shall not be unreasonably delayed or withheld, Alnylam has the sole responsibility to, at Alnylams discretion, file, conduct ex parte and inter partes prosecution, and
maintain (including the defense of any interference or opposition proceedings) in the Territory, all Patent Rights comprising Joint Collaboration IP, in the names of both Tekmira and Alnylam. Each Party shall use Commercially Reasonable Efforts to
make available to Alnylam or its authorized attorneys, agents or representatives, such of its employees as Alnylam in its reasonable judgment deems necessary in order to assist it in obtaining patent protection for such Joint Collaboration IP. Each
Party shall sign, or use Commercially Reasonable Efforts to have signed, all legal documents necessary to file and prosecute patent applications or to obtain or maintain patents in respect of such Joint Collaboration IP, at no cost to Alnylam.

10.2.4 Contingent Rights.

(a) In the event that Alnylam elects not to seek or continue to seek or maintain patent protection on any Alnylam IOC Technology or Alnylam Collaboration IP which is subject to Tekmiras licensed
rights under Section 6.1.2(a) or (b), or Joint Collaboration IP, then Tekmira shall have the right (but not the obligation), at its expense, to file, prosecute and maintain in any country



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within the Territory patent protection on such Alnylam IOC Technology or Alnylam Collaboration IP in the name of Alnylam or on such Joint Collaboration IP in the names of Alnylam and Tekmira. In
the event that Alnylam declines to file, prosecute and/or maintain Valid Claims at Tekmiras request in Joint Collaboration IP, then Tekmira shall have the right (but not the obligation) at its expense, to file, prosecute and maintain in any
country within the Territory patent prosecution on such Joint Collaboration IP in the names of Alnylam and Tekmira.

(b) In
the event that Tekmira elects not to seek or continue to seek or maintain patent protection on any Tekmira Technology or Tekmira Collaboration IP, which is subject to Alnylams licensed rights under Section 6.1.1(a), then subject to the
provisions of the UBC Sublicense Documents, Alnylam shall have the right (but not the obligation), at its expense, to prosecute and maintain in any country within the Territory patent protection on such Tekmira Technology in the name of Tekmira or
Tekmira Collaboration IP in the name of UBC.

(c) The Party having the right to prosecute and maintain patents under Sections
10.2.1, 10.2.2 and 10.2.3 shall be referred to as the Prosecuting Party. The Prosecuting Party shall use Commercially Reasonable Efforts to make available to the other Party or its authorized attorneys, agents or representatives,
such of its employees as are reasonably necessary to assist the other Party in obtaining and maintaining the patent protection described under this Section 10.2.4. The Prosecuting Party shall sign or use Commercially Reasonable Efforts to have
signed all legal documents necessary to file and prosecute such patent applications or to obtain or maintain such patents.

10.2.5Cooperation. Each Party hereby agrees: (a) to make its employees, agents and consultants reasonably available
to the other Party (or to the other Partys authorized attorneys, agents or representatives), to the extent reasonably necessary to enable such Party to undertake patent prosecution; (b) to provide the other Party with copies of all
material correspondence pertaining to prosecution with the patent offices; (c) to cooperate, if necessary and appropriate, with the other Party in gaining patent term extensions wherever applicable to Patent Rights; and (d) to endeavor in
good faith to coordinate its efforts with the other Party to minimize or avoid interference with the prosecution and maintenance of the other Partys patent applications.

10.2.6 Patent Expenses. The patent filing, prosecution and maintenance expenses incurred after the Original Effective Date with respect to Patent Rights comprised of Alnylam Core Patent
Rights, Alnylam IOC Technology, Alnylam Lipidoid Patent Rights, Tekmira Technology, Tekmira IOC Technology and Collaboration IP shall be borne by each Party having the right to file, prosecute and maintain such Patent Rights under this
Section 10.2.

10.3 Third Party Infringement.

10.3.1 Notices. Each Party shall promptly report in writing to the other Party during the Agreement Term (a) any known
or suspected infringement of any Alnylam RNAi Technology, Alnylam IOC Technology, Tekmira Technology, Tekmira IOC Technology or Collaboration IP with respect to a Royalty Product, or (b) unauthorized use or misappropriation of any Confidential
Information by a Third Party of which it becomes aware, and shall provide the other Party with all available evidence supporting such infringement, or unauthorized use or misappropriation



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|10.3.2 | Rights to Enforce.
|------ | ------------------

(a) Subject to the provisions of any Tekmira In-License and the provisions of the UBC Sublicense Documents, in respect of the Alnylam Royalty Products in the Alnylam Field in the Territory, Alnylam shall
have the sole and exclusive right to initiate an infringement or other appropriate suit anywhere in the world against any Third Party who at any time has infringed, or is suspected of infringing, any Patent Rights, or of using without proper
authorization, any Know-How, comprising any of the Exclusively Licensed Tekmira IP, with respect to such Alnylam Royalty Products.

(b) Tekmira shall have the sole and exclusive right to initiate an infringement or other appropriate suit anywhere in the world against any Third Party who at any time has infringed, or is suspected of
infringing, any Patent Rights, or of using without proper authorization, any Know-How, comprising any Non-Exclusively Licensed Tekmira IP other than any Patent Rights or Know-How comprising Joint Collaboration IP.

(c) Alnylam shall have the sole and exclusive right to initiate an infringement or other appropriate suit anywhere in the world against
any Third Party who at any time has infringed, or is suspected of infringing, any Patent Rights, or of using without proper authorization any Know-How, comprising Alnylam RNAi Technology, Alnylam IOC Technology or Alnylam Collaboration IP;
provided, that if Alnylam fails to initiate a suit or take other appropriate action with respect to Alnylam IOC Technology in the United States with respect to an IOC Product that it has the initial right to initiate or take pursuant thereto
within ninety (90) days after becoming aware of the basis for such suit or action, then Tekmira may, in its discretion, provide Alnylam with written notice of Tekmiras intent to initiate a suit or take other appropriate action with
respect to such IOC Product. If Tekmira provides such notice and Alnylam fails to initiate a suit or take such other appropriate action within thirty (30) days after receipt of such notice from Tekmira, then Tekmira shall have the right to
initiate a suit or take other appropriate action that it believes is reasonably required to protect its licensed interests under the Alnylam IOC Technology and Alnylam Collaboration IP with respect to such IOC Product.

(d) Alnylam shall have the first right to initiate an infringement or other appropriate suit anywhere in the world against any Third
Party who at any time has infringed, or is suspected of infringing, any Patent Rights, or of using without proper authorization any Know-How, comprising Joint Collaboration IP that is Non-Exclusively Licensed Tekmira IP; provided, that if
Alnylam fails to initiate a suit or take other appropriate action with respect to such Joint Collaboration IP in the Territory within ninety (90) days after becoming aware of the basis for such suit or action, then Tekmira may, in its
discretion, provide Alnylam with written notice of Tekmiras intent to initiate a suit or take other appropriate action with respect to such Joint Collaboration IP. If Tekmira provides such notice and Alnylam fails to initiate a suit or take
such other appropriate action within thirty (30) days after receipt of such notice from Tekmira, then Tekmira shall have the right to initiate a suit or take other appropriate action that it believes is reasonably required to protect its
licensed interests under such Joint Collaboration IP.

10.3.3 Procedures; Expenses and Recoveries. The Party having the
right to initiate any infringement suit pursuant to Section 10.3.2 above shall have the sole and exclusive right to select counsel for any such suit, and shall pay all expenses of the suit, including legal fees and court costs and reimbursement
of the other Partys reasonable out-of-pocket expense in rendering assistance requested by the initiating Party. If required under applicable law in order for the initiating Party to



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initiate and/or maintain such suit, or if the initiating Party is unable to initiate or prosecute such suit solely in its own name or it is otherwise advisable to obtain an effective legal
remedy, in each case, the other Party shall join as a party to the suit and will execute and cause its Affiliates to execute all documents necessary for the initiating Party to initiate litigation to prosecute and maintain such action. In addition,
at the initiating Partys request, the other Party shall provide reasonable assistance to the initiating Party in connection with an infringement suit at no charge to the initiating Party except for reimbursement by the initiating Party of
reasonable out-of-pocket expenses incurred in rendering such assistance. The other Party shall have the right to participate and be represented in any such suit by its own counsel at its own expense, and to share equally all expenses of such suit if
it so elects. If the Parties obtain from a Third Party, in connection with such suit, any damages, license fees, royalties or other compensation (including any amount received in settlement of such litigation), such amounts shall be allocated in all
cases, first to reimburse each Party for all expenses of the suit, including legal fees and disbursements, court costs and other litigation expenses; with the balance being allocated as follows:

(i) in the case of amounts received in respect of an infringement of Exclusively Licensed Tekmira IP in a suit brought by Alnylam
pursuant to Section 10.3.2(a) with respect to an Alnylam Royalty Product, such amount remaining after deduction of expenses as set forth above shall be treated as if it were Net Sales of such Alnylam Royalty Product, with Tekmira receiving a
royalty on such remaining amount pursuant to the terms of Section 7.3.1; and the balance being retained by Alnylam; or

(ii) in the case of amounts received in respect of an infringement suit brought by Tekmira pursuant to Section 10.3.2(b), the entire such amount remaining after deduction of expenses as set forth
above shall be retained by Tekmira; or

(iii) in the case of amounts received in respect of an infringement of Alnylam
RNAi Technology, Alnylam IOC Technology or Alnylam Collaboration IP in a suit brought by Alnylam pursuant to Section 10.3.2(c), such amount remaining after deduction of expenses as set forth above shall be retained by Alnylam; or

(iv) in the case of amounts received in respect of an infringement suit brought by Tekmira pursuant to the proviso in
Section 10.3.2(c) with respect to an IOC Product, such amount remaining after deduction of expenses as set forth above shall be treated as if it were Net Sales of such IOC Product, with Alnylam receiving a royalty on such remaining amount
pursuant to the terms of Section 7.3.2; and the balance being retained by Tekmira; or

(v) in the case of amounts
received in respect of an infringement suit brought by either Party with respect to Joint Collaboration IP that is Non-Exclusively Licensed Tekmira IP pursuant to Section 10.3.2(d), the entire such amount remaining after deduction of expenses
as set forth above shall be paid to the Party conducting the litigation, or shared equally if both Parties participated voluntarily throughout the litigation and shared its expenses.

10.4 Claimed Infringement.

10.4.1 Notice. In the event that a Third Party at any time provides written notice of a claim to, or brings an action, suit or proceeding against, any Party or any of their respective
Affiliates or Sublicensees, claiming infringement of its patent rights or unauthorized use or misappropriation of its



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know-how, based upon an assertion or claim arising out of the use of the Intellectual Property Rights of the other Party that is licensed or assigned under this Agreement in the Research,
Development, Manufacture or Commercialization of a Royalty Product in the Territory and in (a) the Alnylam Field, in the case of Alnylam Royalty Products and Tekmira Development Products or (b) the Tekmira IOC Field, in the case of Tekmira
IOC Products (Infringement Claim), such Party shall promptly notify the other Party of the claim or the commencement of such action, suit or proceeding, enclosing a copy of the claim and all papers served.

10.4.2 Responsibility.

(a) Alnylam Royalty Products. Any Infringement Claim brought against either Party or its Affiliates or Sublicensees arising out of the Research, Development, Manufacture or Commercialization of any
Alnylam Royalty Product in the Alnylam Field in the Territory, shall be defended by Alnylam if it so desires. Tekmira agrees to make reasonably available to Alnylam its advice and counsel regarding the technical merits of any such claim and to offer
reasonable assistance to Alnylam at no cost to Alnylam.

(b) Tekmira Royalty Products. Any Infringement Claim brought
against either Party or its Affiliates or Sublicensees arising out of the Research, Development, Manufacture or Commercialization of any Tekmira Royalty Product in the Territory and in (a) the Alnylam Field, in the case of Tekmira Development
Products or (b) the Tekmira IOC Field, in the case of Tekmira IOC Products, shall be defended by Tekmira if it so desires. All liabilities, damages, costs and expenses arising out of such Infringement Claims shall be borne by Tekmira.

10.4.3Procedure. The Party with responsibility for the Infringement Claim under Section 10.4.2 (the
Responsible Party) shall have the sole and exclusive right to select counsel for any Infringement Claim; provided, that it shall consult with the other Party with respect to selection of counsel for such defense. The
Responsible Party shall keep the other Party informed, and shall from time to time consult with such other Party regarding the status of any such claims and shall provide such other Party with copies of all documents filed in, and all written
communications relating to, any suit brought in connection with such claims. The other Party shall also have the right to participate and be represented in any such claim or related suit, at its own expense. The other Party shall have the sole and
exclusive right to control the defense of an Infringement Claim in the event the Responsible Party fails to exercise its right to assume such defense within thirty (30) days following written notice of such Infringement Claim. No Party shall
settle any claims or suits involving rights of another Party without obtaining the prior written consent of such other Party, which consent shall not be unreasonably withheld.

10.4.4 Limitations. EXCEPT AS OTHERWISE EXPRESSLY PROVIDED IN THIS AGREEMENT, THE FOREGOING STATES THE ENTIRE RESPONSIBILITY OF ALNYLAM AND TEKMIRA, AND THE SOLE AND EXCLUSIVE REMEDY OF
ALNYLAM OR TEKMIRA, AS THE CASE MAY BE, IN THE CASE OF ANY CLAIMED INFRINGEMENT OF ANY THIRD PARTY PATENT RIGHTS OR UNAUTHORIZED USE OR MISAPPROPRIATION OF ANY THIRD PARTYS KNOW-HOW.

10.5 Other Infringement Resolutions. In the event of a dispute or potential dispute that has not ripened into a demand,
claim or suit of the types described in Sections 10.3 and 10.4 of this Agreement (e.g., actions seeking declaratory judgments and revocation proceedings), the same



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principles governing control of the resolution of the dispute, consent to settlements of the dispute, and implementation of the settlement of the dispute (including the sharing in and allocation
of the payment or receipt of damages, license fees, royalties and other compensation) shall apply.

10.6 Product
Trademarks. Alnylam shall own the Product Trademarks for Alnylam Royalty Products and shall be solely responsible for filing and maintaining such Product Trademarks in the Territory (including payment of costs associated therewith), Alnylam
shall assume full responsibility, at its sole cost and expense, for any infringement of a Product Trademark for an Alnylam Royalty Product by a Third Party and for any claims of infringement of the rights of a Third Party by the use of a Product
Trademark in connection with such Alnylam Royalty Product. Tekmira shall own the Product Trademarks for Tekmira Royalty Products and shall be solely responsible for filing and maintaining such Product Trademarks in the Territory (including payment
of costs associated therewith). Tekmira shall assume full responsibility, at its sole cost and expense, for any infringement of a Product Trademark for a Tekmira Royalty Product by a Third Party and for any claims of infringement of the rights of a
Third Party by the use of a Product Trademark in connection with such Tekmira Royalty Product.

10.7 Patent Term
Extensions.The Parties shall use reasonable efforts to obtain all available supplementary protection certificates (SPC) and other extensions of Patent Rights (including those available under the Hatch-Waxman Act). Each
Party shall execute such authorizations and other documents and take such other actions as may be reasonably requested by the other Party to obtain such extensions. The Parties shall cooperate with each other in gaining patent term restorations,
extensions and/or SPCs wherever applicable to Patent Rights. The Party first eligible to seek patent term restoration or extension of any such Patent Rights or any SPC related thereto shall have the right to do so; provided, that if in
any country the first Party has an option to extend the patent term for only one of several patents, the first Party shall consult with the other Party before making the election. If more than one patent is eligible for extension or patent term
restoration, the Parties shall agree upon a strategy that shall maximize patent protection and commercial value for Royalty Products, as the case may be. All filings for such extensions and certificates shall be made by the Party to whom
responsibility for prosecution and maintenance of the Patent Rights is assigned, provided, that in the event that the Party to whom such responsibility is assigned elects not to file for an extension or SPC, such Party shall
(a) inform the other Party of its intention not to file and (b) grant the other Party the right to file for such extension or SPC in the patentees name and such Party shall provide all necessary assistance in connection therewith.

10.8 Patent Certification. To the extent required by law or permitted by law, the Parties shall use
Commercially Reasonable Efforts to maintain with the applicable Regulatory Authorities during the Agreement Term correct and complete listings of applicable Patent Rights for Royalty Products, as the case may be, being commercialized, including all
so called Orange Book listings required under the Hatch-Waxman Act.



|11. | TERM AND TERMINATION
|--- | --------------------

11.1 Effective Date; Agreement Term and Expiration. The Effective Date shall be the date upon which this Agreement and the Protiva License Agreement are released from escrow and
delivered to the appropriate parties in accordance with the terms of the Escrow Agreement. Unless and until the foregoing condition is met, the Original Agreement shall remain in full force and effect



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and the terms and conditions of the Original Agreement shall govern the Parties without any regard being given to this Agreement or its terms and conditions. On the date upon which the foregoing
condition is met (the Condition Satisfaction Date), this Agreement will supersede and replace the Original Agreement and this Agreement shall continue until terminated pursuant to Section 11.2. (Agreement
Term).

11.2 Termination for Cause.

11.2.1Cause for Termination. This Agreement may be terminated at any time during the Agreement Term:

(a) upon written notice by either Party (the Non-Breaching Party) if the other Party (the Breaching
Party) is in breach of any of its material obligations under this Agreement, in any case by causes and reasons within the Breaching Partys control and, if the breach is capable of being cured, the Breaching Party has not cured such
breach within ninety (90) days after receiving such notice, which notice shall set out the requirements to cure such breach; provided, however, in the event of a good faith Dispute with respect to the existence of a material
breach that is capable of being cured, the ninety (90) day cure period shall be tolled until such time as the Dispute is resolved pursuant to Section 12.6 hereof; or

(b) upon written notice by the Non-Breaching Party if the Breaching Party is in breach of any of its material obligations under any Transaction Document to which it is a party (other than the Supply
Agreement or any Quality Agreement), in any case by causes and reasons within the Breaching Partys control, and if the breach is capable of being cured, the Breaching Party has not cured such breach within the period provided for cure under
the applicable Transaction Document or, if greater, ninety (90) days after receiving such notice; provided, that (x) if the breach is capable of being cured, the written notice of breach provided by the Non-Breaching Party shall set
out the requirements to cure such breach and the applicable cure period, and (y) in the event of a good faith dispute with respect to the existence of a material breach if the breach is capable of being cured, the applicable cure period shall
be tolled until such time as the dispute is resolved pursuant to the dispute resolution provisions of the applicable Transaction Document, or in the absence of any dispute resolution provisions in the applicable Transaction Document,
Section 12.6 hereof; or

(c) by either Party upon the filing or institution of bankruptcy, reorganization, liquidation or
receivership proceedings, or upon an assignment of a substantial portion of the assets for the benefit of creditors by the other Party; provided, however, that in the event of any involuntary bankruptcy or receivership proceeding such
right to terminate shall only become effective if the Party consents to the involuntary bankruptcy or receivership or such proceeding is not dismissed within thirty (30) days after the filing thereof.

11.2.2 Effect of Termination for Cause. Notwithstanding the foregoing, if the material breach has, or is reasonably likely
to have, a material adverse effect only on the Research, Development, Manufacture or Commercialization of a Royalty Product in a Region or Regions, then this Agreement shall not terminate with respect to such Royalty Product in the Territory outside
of such Region(s); provided, that with respect to such Royalty Product in such Region(s):



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(a) except to the extent such licenses are necessary for the Breaching Party to perform its
obligations under clause (c) below, the licenses granted to the Breaching Party under this Agreement with respect to the Research, Development, Manufacture and Commercialization of such Royalty Product in such Region(s) shall terminate; and

(b) subject to the Breaching Partys obligations under the In-Licenses, if the Breaching Party is

(i) Alnylam with respect to a Tekmira Development Product, the license granted to Tekmira in Section 6.1.2(a)(i) shall be converted
into royalty-free, perpetual license;

(ii) Alnylam with respect to an IOC Product, the license granted to Tekmira in
Section 6.1.2(b) shall be converted into a royalty-free, perpetual license; or

(iii) Tekmira with respect to an Alnylam
Royalty Product, the licenses granted to Alnylam in Sections 6.1.1(a) and (b) shall be converted into a royalty-free, perpetual license and the milestone obligations with respect to such Alnylam Royalty Product shall also terminate;

provided, however, that to the extent (x) such license in clauses (i), (ii) or (iii) includes a sublicense under Necessary
Third Party IP, including without limitation the In-Licenses, the non-Breaching Party shall be fully responsible for all royalties, milestones or other payments under such license of Necessary Third Party IP reasonably allocable to such Royalty
Product in such Region(s) or (y) Tekmira is the Breaching Party and the applicable Alnylam Royalty Product is Covered by Intellectual Property Rights sublicensed to Alnylam by Tekmira pursuant to the UBC Sublicense Documents, Alnylam shall be
fully responsible for all royalties and sublicense revenue payable by Tekmira to UBC in respect of such sublicensed Intellectual Property Rights under the Tekmira-UBC License Agreement after the effective date of clause (iii) above subject to
Alnylams right to offset such payments pursuant to Section 7.4.3;

(c) in the event that Tekmira is the Breaching
Party with respect to an Alnylam Royalty Product and is Manufacturing and supplying such Alnylam Royalty Product pursuant to Section 5.1, Tekmira shall have the obligation, if requested by Alnylam, to continue to Manufacture and supply such
Alnylam Royalty Product for such Region(s) for a period of up to eighteen (18) months after the effective date of termination on the same terms thereunder, the Supply Agreement and the applicable Quality Agreement.

For purposes of this Article 11, Region shall mean any of the following regions in the Territory: (i) the United States;
(ii) the European Union, (iii) the region comprised of the following countries: Australia, Bangladesh, Bhutan, Brunei, Darussalam, Burma, Cambodia, China (including Hong Kong), India, Indonesia, Japan, Laos, Macao, Malaysia, Mongolia,
Nepal, New Zealand, Papua New Guinea, Pakistan, Philippines, Republic of Korea, Singapore, Sri Lanka, Taiwan, Thailand and Vietnam; and (iv) the region comprised of the countries of the world not included in clauses (i), (ii) or
(iii) above.

Moreover, any breach of the restrictions in Section 6.1.2(b) which Tekmira fails to cure pursuant to
Section 11.2.1 shall result in the termination of Tekmiras license under such Section to the Alnylam Data, but it shall not, by itself, result in the termination of any other licenses to Tekmira under this Agreement unless Alnylam
meets the burden of demonstrating that such breach has had or is reasonably likely to have a material adverse effect on the benefits, taken as a whole, that Alnylam reasonably anticipates it will obtain from this Agreement and the Protiva
License Agreement and the activities and grants contemplated under such agreements.



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11.3 Termination upon Bankruptcy of a Party.If this Agreement is terminated
by either Party (the Non-Bankrupt Party) pursuant to Section 11.2.1(c) due to the rejection of this Agreement by or on behalf of the other Party (the Bankrupt Party) under Section 365 of the United
States Bankruptcy Code (the Code), all licenses and rights to licenses granted under or pursuant to this Agreement by the Bankrupt Party to the Non-Bankrupt Party are, and shall otherwise be deemed to be, for purposes of
Section 365(n) of the Code, licenses of rights to intellectual property as defined under Section 101(35A) of the Code. The Parties agree that the Non-Bankrupt Party, as a licensee of such rights under this Agreement, shall
retain and may fully exercise all of its rights and elections under the Code, and that upon commencement of a bankruptcy proceeding by or against the Bankrupt Party under the Code, the Non-Bankrupt Party shall be entitled to a complete duplicate of,
or complete access to (as the Non-Bankrupt Party deems appropriate), any such intellectual property and all embodiments of such intellectual property. Such intellectual property and all embodiments thereof shall be promptly delivered to the
Non-Bankrupt Party (a) upon any such commencement of a bankruptcy proceeding upon written request therefor by the Non-Bankrupt Party, unless the Bankrupt Party elects to continue to perform all of its obligations under this Agreement or
(b) if not delivered under (a) above, upon the rejection of this Agreement by or on behalf of the Bankrupt Party upon written request therefor by the Non-Bankrupt Party. The foregoing provisions are without prejudice to any rights the
Non-Bankrupt Party may have arising under the Code or other applicable law.

11.4 Termination upon a Change of
Control. Upon Tekmira (a) receiving or otherwise becoming aware of a proposal or intention by a Third Party to take any action, whether directly or indirectly, including without limitation a non-binding letter of intent, that could lead
to a Change of Control, (b) Tekmira planning to solicit or soliciting offers relating to its or Protivas voting securities or assets that could lead to a Change of Control, or (c) any Change of Control, Tekmira shall provide prompt
written notice thereof to Alnylam. In the event of a Change of Control Alnylam may elect, upon prior written notice to Tekmira, to terminate any or all of the following: (i) the Collaboration, (ii) all Manufacturing Activities, the Supply
Agreement and/or any Quality Agreements, (iii) Section 12.17 and/or (v) Alnylams license grants to Tekmira under the Alnylam Lipidoid Patent Rights; provided, however, that subject to the terms and conditions of
the MIT License Agreement, to the extent that a Tekmira Development Product is Covered by a Valid Claim of an Alnylam Lipidoid Patent Right and is also comprised of a Library Component (as defined in the MIT License Agreement) on the effective date
of termination, such license grant shall survive, but only with respect to such Tekmira Development Product and such Library Component.

11.5 Termination upon an Invalidity Challenge.

(a) Invalidity
Challenge by Alnylam. If Alnylam or its Related Party asserts in any court or other governmental agency of competent jurisdiction that a Tekmira Patent Right or a Patent Right Controlled by Tekmira by virtue of the Tekmira-UBC License Agreement
and sublicensed to Alnylam pursuant to the UBC Sublicense (in either case, an Tekmira Patent) is invalid, unenforceable, or that no issued Valid Claim embodied in such Tekmira Patent excludes a Third Party from making, having
made, using, selling, offering for sale, importing or having imported an Alnylam Royalty Product in such jurisdiction, then Tekmira shall be entitled, upon written notice to Alnylam, to terminate all licenses granted to Alnylam for such Alnylam
Royalty Product(s) covered by such Tekmira Patent that is under challenge in the applicable jurisdiction; provided however, that Tekmira shall not terminate such license if within thirty (30) days of Alnylams receipt of
Tekmiras notification hereunder, Alnylam has:

(i) confirmed by written notice to Tekmira that Alnylam no longer intends
to challenge the validity or enforceability of such Tekmira Patent; or



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(ii) provided to Tekmira documentation to confirm Alnylams withdrawal of its filing,
submission, or other process commenced in any court or other governmental agency of competent jurisdiction to challenge the validity or enforceability of any such Tekmira Patent.

(b) Invalidity Challenge by Tekmira.If Tekmira or its Related Party asserts in any court or other governmental agency of
competent jurisdiction that any Patent Right comprising Alnylam RNAi Patent Rights, Alnylam Lipidoid Patent Rights, Alnylam IOC Technology or Alnylam Core Patent Rights is invalid, unenforceable, or that no issued Valid Claim embodied in such Patent
Right excludes a Third Party from making, having made, using, selling, offering for sale, importing or having imported a Tekmira Royalty Product in such jurisdiction, then Alnylam shall be entitled, upon written notice to Tekmira, to terminate all
licenses granted to Tekmira for such Tekmira Royalty Product(s) covered by the Alnylam RNAi Patent Rights, Alnylam Lipidoid Patent Rights, Alnylam IOC Technology or Alnylam Core Patent Rights under challenge in the applicable jurisdiction;
provided, however, that Alnylam shall not terminate such license if within thirty (30) days of Tekmiras receipt of Alnylams notification hereunder, Tekmira has:

(i) confirmed by written notice to Alnylam that Tekmira no longer intends to challenge the validity or enforceability or any Patent Right
under the Alnylam RNAi Patent Rights, Alnylam Lipidoid Patent Rights, Alnylam IOC Technology or Alnylam Core Patent Rights; or

(ii) provided to Alnylam, documentation to confirm Tekmiras withdrawal of its filing, submission, or other process commenced in any
court or other governmental agency of competent jurisdiction to challenge the validity or enforceability of any Patent Right under the Alnylam RNAi Patent Rights, Alnylam Lipidoid Patent Rights, Alnylam IOC Technology or Alnylam Core Patent Rights.

11.6 Termination of Exclusive Manufacturing Obligations.Alnylam shall have the right to terminate the
Manufacturing Activities, the Supply Agreement and any Quality Agreement in the event of a breach by Tekmira of any of its material obligations under Article 5, the Supply Agreement or any Quality Agreement, in any case by causes and reasons within
Tekmiras control, upon written notice to Tekmira setting out the requirements to cure, and if the breach is capable of being cured, Tekmira has not cured such breach within ninety (90) days after receiving such notice; provided,
however, that in the event of a good faith Dispute with respect to the existence of a material breach that is capable of being cured, the ninety (90) day cure period shall be tolled until such time as the Dispute is resolved pursuant to
Section 12.6 hereof.

11.7 Effect of Expiration or Termination; Survival. Expiration or termination of this
Agreement shall not relieve the Parties of any obligation accruing prior to such expiration or termination. Any expiration or termination of this Agreement shall be without prejudice to the rights of either Party against the other accrued or
accruing under this Agreement prior to expiration or termination, including without limitation the obligation to pay royalties sold prior to such expiration or termination. The provisions of Articles 1, 8, 9, and 12 and Sections 3.3 (third and
fourth sentences only), 3.4, 3.6, 3.7.3, 3.7.4, 5.4, 6.1.2(b), 6.2.6, 6.3, 6.6, 7.6, 7.7, 7.8(b), 10.1, 10.2.3, 10.4.2, 10.4.3, 10.4.4, 10.5 (to the extent relevant to a demand, claim or suit of the type described in Section 10.4), 10.6,
11.2.2, 11.3, and 11.7 shall survive any expiration or termination of this Agreement; provided, however, that if this Agreement is terminated pursuant to Section 11.2.1 and the Breaching Party or



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the Bankrupt Party is (a) Tekmira or its Affiliate, then Sections 6.1.2(b) and 12.17 shall terminate or (b) Alnylam, then Section 6.9 shall terminate. Except as set forth in this
Article 11, upon termination or expiration of this Agreement all other rights and obligations cease.



|12. | MISCELLANEOUS
|--- | -------------

12.1Force Majeure. Neither Party shall be held liable to the other Party nor be deemed to have defaulted under or breached this Agreement for failure or delay in performing any obligation under this Agreement to the extent that
such failure or delay is caused by or results from causes beyond the reasonable control of the affected Party, potentially including without limitation embargoes, war, acts of war (whether war be declared or not), insurrections, riots, civil
commotions, strikes, lockouts or other labor disturbances, fire, floods, or other acts of God, or acts, omissions or delays in acting by any governmental authority or the other Party. The affected Party shall notify the other Party of such force
majeure circumstances as soon as reasonably practical, and shall promptly undertake all reasonable efforts necessary to cure such force majeure circumstances.

12.2 Assignment. This Agreement may not be assigned or otherwise transferred, nor may any right or obligation hereunder be assigned or transferred, by either Party by operation of law or
otherwise, without the prior written consent of the other Party; provided, however, that subject to Section 11.4, either Party may, without the other Partys consent, assign this Agreement and its rights and obligations
hereunder in whole or in part to an Affiliate or, to a party that acquires, by merger, sale of assets or otherwise, all or substantially all of the business of such Party to which the subject matter of this Agreement relates. Notwithstanding the
foregoing, Tekmira may not assign (a) this Agreement or its rights and obligations hereunder to Protiva without Alnylams prior written consent, except that Tekmira may, upon prior written notice to Alnylam, transfer its rights and
obligations with respect to any Tekmira Development Target and any Tekmira Development Products to Protiva; provided that, (i) any such transfer shall be subject in all respects to the Merck Restriction and the terms of Section 3.7,
(ii) Protiva is and remains a wholly-owned subsidiary of Tekmira, (iii) Protiva agrees in writing to perform all of Tekmiras obligations with respect to such Tekmira Development Target(s) and Tekmira Development Product(s) and
(iv) Tekmira guarantees in writing the performance of Protivas obligations to Alnylam with respect to such Tekmira Development Target(s) and Tekmira Development Product(s); or (b) its rights under this Agreement to perform the
Collaboration or to perform Manufacturing Activities to any Tekmira Affiliate of which [*] or more of the outstanding voting securities are owned, controlled or held by a Significant Pharmaceutical Company or by any investment entity
affiliated with any such Significant Pharmaceutical Company. The above notwithstanding: (i) Tekmira agrees not to assign or transfer this Agreement to any Third Party who is not also the assignee or transferee of all ownership rights in the
Tekmira Technology or otherwise in a manner that would be inconsistent with Alnylams rights under this Agreement; and (ii) Alnylam agrees not to assign this Agreement to any Third Party who is not also the assignee or transferee of all
ownership rights in the Alnylam Core Patent Rights or otherwise in a manner that would be inconsistent with Protivas rights under this Agreement. Any attempted assignment not in accordance with this Section 12.2 shall be void. The
assigning Party shall remain responsible for the performance by its assignee of this Agreement or any obligations hereunder so assigned to such assignee. Alnylam agrees to notify Tekmira in the event that all or a part of this Agreement is assigned
to an Affiliate of Alnylam, which assignment may result in payments from such Affiliate to the Tekmira under the agreement; provided, however, that the failure to provide such notice shall not constitute a material breach of this
Agreement.



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12.3 Severability. If any one or more of the provisions contained in this
Agreement is held invalid, illegal or unenforceable in any respect, the validity, legality and enforceability of the remaining provisions contained herein shall not in any way be affected or impaired thereby, unless the absence of the invalidated
provision(s) adversely affects the substantive rights of the Parties. The Parties shall in such an instance use their best efforts to replace the invalid, illegal or unenforceable provision(s) with valid, legal and enforceable provision(s) which,
insofar as practical, implement the purposes of this Agreement.

12.4 Notices. All notices which are required or
permitted hereunder shall be in writing and sufficient if delivered personally, sent by facsimile (and promptly confirmed by personal delivery, registered or certified mail or overnight courier), sent by nationally-recognized overnight courier or
sent by registered or certified mail, postage prepaid, return receipt requested, addressed as follows:



|                   |  |                                    
|------------------ |  | -----------------------------------
|If to Alnylam, to: |  | ALNYLAM PHARMACEUTICALS, INC.      
|                   |  | 300 Third Street                   
|                   |  | Cambridge, MA 02142                
|                   |  | Attention: Chief Executive Officer 
|                   |  | Facsimile No.: (617) 551-8101      
|                   | 
|and:               |  | FABER DAEUFER & ROSENBERG PC       
|                   |  | 950 Winter Street, Suite 4500      
|                   |  | Waltham, MA 02451                  
|                   |  | Attention: Sumy Daeufer            
|                   |  | Facsimile No.: 781-795-4747        
|                   | 
|If to Tekmira, to: |  | TEKMIRA PHARMACEUTICALS CORPORATION
|                   |  | #200  8900 Glenlyon Parkway       
|                   |  | Burnaby, B.C.                      
|                   |  | Canada V5J 5J8                     
|                   |  | Attention: President and C.E.O     
|                   |  | Facsimile No.: (604) 419-3201      
|                   | 
|and:               |  | LANG MICHENER LLP                  
|                   |  | 1500-1055 West Georgia Street      
|                   |  | Vancouver, British Columbia        
|                   |  | Attention: Leo Raffin              
|                   |  | Facsimile No.: (604) 893-2356      

or to such other address as the Party to whom notice is to be given may have furnished to the other Party in writing in
accordance herewith. Any such notice shall be deemed to have been given: (a) when delivered if personally delivered or sent by facsimile on a Business day (or if delivered or sent on a non-Business Day, then on the next Business day);
(b) on receipt if sent by nationally-recognized overnight courier; and/or (c) on receipt if sent by mail.

12.5
Applicable Law. The Agreement shall be governed by and construed in accordance with the laws of the State of Delaware, U.S.A; provided that (i) matters of intellectual property law concerning the existence, validity,
ownership, infringement or enforcement of intellectual property



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shall be determined in accordance with the national intellectual property laws relevant to the intellectual property in question, and (ii) the application of the 1980 United Nations
Convention on Contracts for the International Sale of Goods is expressly excluded from this Agreement.

12.6 Dispute
Resolution.

12.6.1 Disputes.The Parties shall negotiate in good faith and use reasonable efforts to
settle any dispute, controversy or claim arising from, or related to, this Agreement or to the breach hereof (collectively, Dispute). In the event that the Chief Executive Officers cannot reach an agreement regarding a Dispute
within thirty (30) days after submission to them for resolution, the provisions of Section 4.4(a) do not apply, and a Party wishes to pursue the matter, each such Dispute that is not an Excluded Claim shall be finally resolved
by binding arbitration in accordance with the Commercial Arbitration Rules and Supplementary Procedures for Large Complex Disputes of the American Arbitration Association (AAA) and Section 12.6.2 below, and judgment on the
arbitration award may be entered in any court having jurisdiction thereof. As used in this Section 12.6, the term Excluded Claim shall mean a dispute that concerns (a) the validity or infringement of a patent, trademark
or copyright, or (b) any antitrust, anti-monopoly or competition law or regulation, whether or not statutory.

12.6.2 Arbitration. The arbitration shall be conducted by a panel of three (3) persons experienced in the
pharmaceutical business who are independent of both Parties and neutral with respect to the Dispute presented for arbitration. Within thirty (30) days after initiation of arbitration, each Party shall select one person to act as arbitrator and
the two Party-selected arbitrators shall select a third arbitrator within thirty (30) days of their appointment. If the arbitrators selected by the Parties are unable or fail to agree upon the third arbitrator, the third arbitrator shall be
appointed by the AAA. The place of arbitration shall be Chicago, Illinois, USA, and all proceedings and communications shall be in English.

Either Party may apply to the arbitrators for interim injunctive relief until the arbitration award is rendered or the controversy is otherwise resolved. Either Party also may, without waiving any remedy
under this Agreement, seek from any court having jurisdiction any injunctive or provisional relief necessary to protect the rights or property of that Party pending the arbitration award. The arbitrators shall have no authority to award punitive or
any other type of damages not measured by a Partys compensatory damages. Each Party shall bear its own costs and expenses and attorneys fees, and the Party that does not prevail in the arbitration proceeding shall pay the
arbitrators and any administrative fees of arbitration. Except to the extent necessary to confirm an award or as may be required by law, neither a Party nor an arbitrator may disclose the existence, content, or results of an arbitration
without the prior written consent of both Parties. In no event shall an arbitration be initiated after the date when commencement of a legal or equitable proceeding based on the Dispute, controversy or claim would be barred by the applicable
Massachusetts statute of limitations.

(a) The Parties agree that, in the event of a Dispute over the nature or quality of
performance under this Agreement, neither Party may terminate this Agreement until final resolution of the Dispute through arbitration or other judicial determination. The Parties further agree that any payments made pursuant to this Agreement
pending resolution of the Dispute shall be refunded promptly if an arbitrator or court determines that such payments are not due.



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(b) The Parties hereby agree that any disputed performance or suspended performances pending
the resolution of the arbitration that the arbitrator determines to be required to be performed by a Party must be completed within a reasonable time period following the final decision of the arbitrator.

(c) The Parties hereby agree that any monetary payment to be made by a Party pursuant to a decision of the arbitrator shall be made in
United States dollars, free of any tax or other deduction. The Parties further agree that the decision of the arbitrator shall be the sole, exclusive and binding remedy between them regarding determination of the matters presented to the arbitrator.

12.7 Entire Agreement; Amendments. This Agreement, together with the other Transaction Documents, contain the
entire understanding of the Parties with respect to the subject matter hereof and licenses granted hereunder. All express or implied agreements and understandings, either oral or written, with regard to the subject matter hereof and the licenses
granted hereunder, including without limitation, the Original INEX Agreements, are superseded by the terms of this Agreement and the other Transaction Documents. This Agreement (including the Schedules hereto) and the other Transaction Documents may
be amended, or any term hereof modified, only by a written instrument duly executed by authorized representatives of both Parties hereto.

12.8 Headings. The captions to the Articles and Sections hereof are not a part of this Agreement, but are merely for convenience to assist in locating and reading the several Articles and
Sections hereof.

12.9 Independent Contractors. It is expressly agreed that Alnylam and Tekmira shall be
independent contractors and that the relationship between Alnylam and Tekmira shall not constitute a partnership, joint venture or agency. Neither Party shall have the authority to make any statements, representations or commitments of any kind, or
to take any action, which shall be binding on the other Party, without the prior written consent of such other Party.

12.10 Waiver. The waiver by either Party hereto of any right hereunder, or of the failure of the other Party to perform, or
of a breach by the other Party, shall not be deemed a waiver of any other right hereunder or of any other breach or failure by such other Party, whether of a similar nature or otherwise.

12.11 Cumulative Remedies. No remedy referred to in this Agreement is intended to be exclusive, but each shall be
cumulative and in addition to any other remedy referred to in this Agreement or otherwise available under law.

12.12
Waiver of Rule of Construction. Each Party has had the opportunity to consult with counsel in connection with the review, drafting and negotiation of this Agreement. Accordingly, the rule of construction that any ambiguity in this
Agreement shall be construed against the drafting Party shall not apply.

12.13 Counterparts. The Agreement may
be executed in two or more counterparts, each of which shall be deemed an original, but all of which together shall constitute one and the same instrument.



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12.14 Binding Effect. Subject to Section 11.1, as of the Effective Date,
this Agreement shall be binding upon and inure to the benefit of the Parties and their respective permitted successors and permitted assigns.

12.15 No Third Party Beneficiaries. Except as expressly contemplated herein, no Third Party, including any employee of any Party to this Agreement, shall have or acquire any rights by reason
of this Agreement.

12.16 Finders Fee. Tekmira agrees to indemnify and to hold harmless Alnylam from any
liability for any commission or compensation in the nature of a finders fee (and the reasonable costs and expenses of defending against such liability or asserted liability) for which Tekmira or any of its officers, partners, employees, or
representatives is responsible. Alnylam agrees to indemnify and hold harmless Tekmira from any liability for any commission or compensation in the nature of a finders fee (and the reasonable costs and expenses of defending against such
liability or asserted liability) for which Alnylam or any of its officers, employees or representatives is responsible.

12.17 Standstill.

(a) Subject to the terms of this Section 12.17, until the fifth year anniversary of the Original Effective Date, without the approval of the Board of Directors of Tekmira, neither Alnylam nor any of
its Affiliates will:

(i) acquire or offer to acquire in one or more transactions, any voting securities or other securities
convertible into voting securities of Tekmira representing in aggregate 10% or more of the issued and outstanding voting securities of Tekmira (assuming the conversion of such other securities convertible into voting securities of Tekmira);

(ii) solicit proxies with respect to the voting of any securities of Tekmira or otherwise attempt to influence the voting of
any securities of Tekmira by the holders of such securities;

(iii) enter in any agreement with or assist any Third Party, or
assist or participate in any group acting jointly or in concert, with respect to any of the foregoing; or

(iv) make any
public announcement or disclosure with respect to any of the foregoing, except to the extent required by applicable law and except for disclosure of the foregoing terms as contemplated by Article 8.

(b) Alnylam represents and warrants to Tekmira that, as of the Effective Date, Alnylam, together with its Affiliates, does not
beneficially own, or exercise control or direction over, any voting securities or other securities convertible into voting securities of Tekmira, except for (i) securities owned, or over which Alnylam and/or its Affiliates exercise control or
direction, for purposes of any 401(k) or similar benefit plan maintained by Alnylam or its Affiliates for its or their employees over which Alnylam has no independent investment control and (ii) securities acquired by Alnylam pursuant to the
Alnylam Subscription Agreement. For as long as the restrictions in Section 12.17.1(a) are in effect, Alnylam agrees to provide Tekmira with prompt notice of any acquisition of voting securities or other securities convertible into voting
securities of Tekmira.



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(c) Upon Tekmira receiving or otherwise becoming aware of a bona fide proposal or intention
by a Third Party (other than a Permitted Investor) to take any action described in Section 12.17.1(a)(i)-(iv), whether directly or indirectly, including without limitation a non-binding letter of intent, Tekmira shall immediately notify Alnylam
of such proposal or intention. The restrictions in Section 12.17.1(a) shall immediately terminate and be of no further force or effect on the earlier of (a) such bona fide proposal or intention being disclosed publicly (other than by
Alnylam) or (b) the Board of Directors or management of Tekmira engaging in substantive discussions with such Third Party concerning such proposal or intention. A Permitted Investor means any investor, other than a
pharmaceutical or biotechnology company, who acquires in one or more transactions, any voting securities or other securities convertible into voting securities of Tekmira representing in aggregate 10% or more, but less than 20%, of the issued and
outstanding voting securities of Tekmira (assuming the conversion of such other securities convertible into voting securities of Tekmira), so long as such investor evidences no intent to seek to influence the management of Tekmira (other than by
voting such acquired securities).

(d) In the event that Tekmira plans to solicit or does solicit offers (other than in
respect of a public offering of its securities, including any private placement to a Permitted Investor) relating to the acquisition of voting securities or other securities convertible into voting securities of Tekmira representing 10% or more of
the issued and outstanding voting securities of Tekmira (assuming the conversion of such other securities convertible into voting securities of Tekmira), or in the event Tekmira engages in any discussions in which Tekmira may solicit or receive any
offer relating to the acquisition of an ownership interest (excluding licenses) in any Tekmira Technology, Tekmira shall immediately notify Alnylam of such circumstance and the restrictions in Section 12.17.1(a) shall immediately terminate and
be of no further force or effect.

(e) Upon a breach by Tekmira of any of the representations, warranties or covenants set
forth in the Alnylam Subscription Agreement, the restrictions in Section 12.17.1(a) shall immediately terminate and be of no further force or effect.

(f) Nothing in this Section 12.17.1 shall be deemed to affect or impair the right of Alnylam to enforce its lawful remedies against Tekmira or to prevent Alnylam from exercising any rights granted by
Tekmira to Alnylam.

(g) Nothing in this Section 12.17.1 shall prohibit Alnylam or its Affiliates from owning or making
open market purchases of any voting securities of Tekmira, or any securities convertible into or exercisable for any such voting securities, for purposes of any 401(k) or similar benefit plan maintained by Alnylam or its Affiliates for its or their
employees; providedthat Alnylam and its Affiliates will not request or direct that the trustee or other administrator of any such plan acquire any voting securities of Tekmira or exercise any influence over the voting of such securities.

(h) Alnylam and Tekmira agree and acknowledge that the restrictions contained in this Section 12.17.1: (i) shall
continue in full force and effect following both the execution of the Purchase Agreement and the Closing, and (ii) shall not apply to the transactions contemplated in the Alnylam Subscription Agreement and the Roche Subscription Agreement.



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12.18 Employees. Until the fifth year anniversary of the Original Effective
Date, neither Alnylam nor any of its Affiliates will knowingly offer to hire or hire any individual who is, at such time, an officer or employee of Tekmira or any of its Affiliates, and who was, at any time in the preceding three (3) months,
involved in (i) selecting the Tekmira Development Targets, (ii) the Research, Development, Manufacture and Commercialization of Tekmira Development Products and/or (iii) conducting the Collaboration. For clarity, placing an
advertisement in a newspaper, periodical or other publication of general availability, or other general recruitment activities not directed at a particular individual, do not constitute an offer to hire.

12.19 Protiva License Agreement.Tekmira, as the parent company of Protiva, hereby agrees to use reasonable and diligent
efforts to cause Protiva to perform Protivas obligations in accordance with the terms of the Protiva License Agreement. Moreover, Tekmira hereby unconditionally and irrevocably agrees that, if and to the extent Protiva fails to pay to Alnylam
when due any financial obligation at any time owed by Protiva to Alnylam in connection with the Protiva License Agreement (including without limitation any damages for breach), Tekmira shall be responsible for such financial obligation, and will be
required to make such payment to Alnylam in satisfaction of Protivas obligation.

12.20 Further Assurances.The Parties will with reasonable diligence, do all such things and provide all such reasonable assurances as may be required to consummate the transactions contemplated by this Agreement, and each Party will provide such further documents or
instruments required by the other Party as may be reasonably necessary or desirable to give effect to the purpose of this Agreement and carry out its provisions.

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IN WITNESS WHEREOF, the Parties have executed this Agreement as of the date first set
forth above.



|                       |  |                  |  |                               |  |        |  |                        
|---------------------- |  | ---------------- |  | ----------------------------- |  | ------ |  | -----------------------
|TEKMIRA PHARMACEUTICAL |  |                  |  | ALNYLAM PHARMACEUTICALS, INC.
|CORPORATION            |  |                  |  |                              
|                       |  |                  |  |                              
|BY:                    |  | /s/ Ian Mortimer |  |                               |  | BY:    |  | /s/ John Maraganore    
|NAME:                  |  | Ian Mortimer     |  |                               |  | NAME:  |  | John Maraganore        
|TITLE:                 |  | CFO              |  |                               |  | TITLE: |  | Chief Executive Officer
|DATE:                  |  |                  |  |                               |  | DATE:  |  |                        





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SCHEDULE 1.4

ALNYLAM CORE PATENT RIGHTS



|           |  |          |  |      |  |           |  |         |  |           |  |         |  |           |  |         |  |                  
|---------- |  | -------- |  | ---- |  | --------- |  | ------- |  | --------- |  | ------- |  | --------- |  | ------- |  | -----------------
|CaseNumber |  | AppTitle |  | Ctry |  | AppNumber |  | FilDate |  | PubNumber |  | PubDate |  | PatNumber |  | IssDate |  | ApplicationStatus
|[*]        |  | [*]      |  | [*]  |  | [*]       |  | [*]     |  | [*]       |  | [*]     |  | [*]       |  | [*]     |  | [*]              



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SCHEDULE 1.6

ALNYLAM IOC PATENT RIGHTS

Alnylams undivided one-half interest in the
following:



|           |  |          |  |      |  |           |  |         |  |           |  |         |  |           |  |         |  |                  
|---------- |  | -------- |  | ---- |  | --------- |  | ------- |  | --------- |  | ------- |  | --------- |  | ------- |  | -----------------
|CaseNumber |  | AppTitle |  | Ctry |  | AppNumber |  | FilDate |  | PubNumber |  | PubDate |  | PatNumber |  | IssDate |  | ApplicationStatus
|[*]        |  | [*]      |  | [*]  |  | [*]       |  | [*]     |  | [*]       |  | [*]     |  | [*]       |  | [*]     |  | [*]              



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SCHEDULE 1.7

ALNYLAM LIPIDOID PATENT RIGHTS



|           |  |          |  |      |  |           |  |         |  |           |  |         |  |           |  |         |  |                  
|---------- |  | -------- |  | ---- |  | --------- |  | ------- |  | --------- |  | ------- |  | --------- |  | ------- |  | -----------------
|CaseNumber |  | AppTitle |  | Ctry |  | AppNumber |  | FilDate |  | PubNumber |  | PubDate |  | PatNumber |  | IssDate |  | ApplicationStatus
|[*]        |  | [*]      |  | [*]  |  | [*]       |  | [*]     |  | [*]       |  | [*]     |  | [*]       |  | [*]     |  | [*]              



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SCHEDULE 1.15

BIODEFENSE TARGETS

[*]



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SCHEDULE 1.35

EXISTING ALNYLAM IN-LICENSES

Existing Alnylam In-Licenses shall include the
following Third Party agreements:

[*]



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SCHEDULE 1.36

EXISTING TEKMIRA IN-LICENSES

Existing Tekmira In-Licenses shall include the
following Third Party agreements:

[*]



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SCHEDULE 1.73

TEKMIRA PATENT RIGHTS

[*]



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PATENT RIGHTS CONTROLLED BY TEKMIRA THROUGH AN OWNERSHIP INTEREST



|                    |  |       |  |                        |  |           |  |      
|------------------- |  | ----- |  | ---------------------- |  | --------- |  | -----
|TEKMIRA File Number |  | Title |  | Serial/ Patent Numbers |  | Inventors |  | Owner
|[*]                 |  | [*]   |  | [*]                    |  | [*]       |  | [*]  



|             |  |    |  |                                   
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PATENT RIGHTS CONTROLLED BY TEKMIRA UNDER A LICENSE FROM A THIRD PARTY



|                    |  |       |  |                        |  |           |  |      
|------------------- |  | ----- |  | ---------------------- |  | --------- |  | -----
|TEKMIRA File Number |  | Title |  | Serial/ Patent Numbers |  | Inventors |  | Owner
|[*]                 |  | [*]   |  | [*]                    |  | [*]       |  | [*]  



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SCHEDULE 1.78

PRE-EXISTING ALNYLAM ALLIANCE AGREEMENTS

[*]



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SCHEDULE 3.1

UPDATED RESEARCH PLAN

[*]



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SCHEDULE 5.1

UPDATED MANUFACTURING PLAN

[*]



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SCHEDULE 6.2.2

ROCHE SUBLICENSE AGREEMENT

[*]



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SCHEDULE 6.4(a)

TEKMIRA IN-LICENSE PROVISION

Notwithstanding anything to the contrary in this [Tekmira In-License], if this [Tekmira In-License] is terminated outside the course of an Intervening Event (as defined below), and Alnylam
Pharmaceuticals, Inc. (ALNYLAM) is not then in material breach of a sublicense agreement with Tekmira (an Existing Sublicense Agreement) under the technology covered by this [Tekmira In-License](the
Technology), or ALNYLAMs further sublicensee is not then in material breach of its further sublicense with ALNYLAM, then [Third Party licensor] will, at the request of ALNYLAM (or such further sublicensee), grant to ALNYLAM
(or to such further sublicensee) a direct license to the Technology and other rights covered by such Existing Sublicense Agreement (or covered by the further sublicense between ALNYLAM and such further sublicensee), effective as of the date of
termination of this [Tekmira In-License], on the same terms as such Existing Sublicense Agreement (or such further sublicense).

Further, and notwithstanding anything to the contrary in this [Tekmira In-License], the parties acknowledge and agree that [Third Party
licensor]retains the right to any Technology sublicensed to ALNYLAM as necessary to fulfill its rights under this Section. To the extent that ALNYLAM is granted any rights to use the Technology under an Existing Sublicense Agreement, [Third
Party licensor] retains the right to grant to ALNYLAM (or to ALNYLAMs further sublicensee) a direct license in respect of the same rights under the Technology covered in the Existing Sublicense Agreement (or covered in the sublicense
agreement between ALNYLAM and such further sublicensee). [Third Party licensor] agrees that it shall not enforce such right to grant a direct license unless the Existing Sublicense Agreement (or the sublicense agreement between ALNYLAM and
such further sublicensee) is rejected, disclaimed, resiliated or terminated during the course of any intervening proceedings that may occur with respect to Tekmira, including but not limited to any insolvency proceedings or winding up proceedings
(which can include proceedings commenced under the Companies Creditors Arrangement Act, the appointment of an interim receiver or receiver, and/or the appointment of a Trustee in Bankruptcy), or upon further order of a Court of competent
jurisdiction (an Intervening Event). Should an Intervening Event occur and if the Existing Sublicense Agreement (or the sublicense agreement between ALNYLAM and such further sublicensee) is otherwise in good standing at such time,
[Third Party licensor] will at such time enforce its rights to grant to ALNYLAM (or to such further sublicensee) a direct license in respect of the same rights under the Technology covered in the Existing Sublicense Agreement (or the
sublicense agreement between ALNYLAM and such further sublicensee), effective as of the date of such Intervening Event, on the same terms as such Existing Sublicense Agreement.

Further, and notwithstanding anything to the contrary in this [Tekmira In-License], Tekmira shall have no right to assign this [Tekmira In-License], and [Third Party licensor] will
not consent to any such assignment, if such assignment would, or is reasonably likely to, result in a termination of, or any diminution of, ALNYLAMs rights under any Existing Sublicense Agreement.



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SCHEDULE 6.4(b)

MIT LICENSE AGREEMENT OBLIGATIONS

The sublicense rights granted Tekmira to the Alnylam Lipidoid Patent Rights under this Agreement are subject to, and qualified by, the following terms and conditions. Tekmira is required to comply with
all of its obligations in this Schedule 6.4(b) in connection with its exercise of its sublicense to the Alnylam Lipidoid Patent Rights in addition to any similar obligations set forth elsewhere in this Agreement or as otherwise required in
order for Alnylam to comply with its obligations under the MIT License Agreement.

As used in this Schedule 6.4(b), the following terms
have the following meanings, regardless of whether such term has a different meaning elsewhere in this Agreement. All other capitalized terms used in this Schedule 6.4(b) and not otherwise defined in this Schedule 6.4(b) have the
meanings set forth elsewhere in this Agreement.

Patent Challenge means any action challenging the validity, patentability,
enforceability and/or scope of any of the Alnylam Lipidoid Patent Rights, provided however that participation of Tekmira in an interference proceeding before the United States Patent and Trademark Office shall not be considered a
Patent Challenge hereunder.

M.I.T. means the Massachusetts Institute of Technology.

Consequences of a Patent Challenge. Without limiting the generality of Sections 6.4 and 11.5(b) of this Agreement, Tekmira acknowledges that M.I.T
may require that Alnylam terminate the sublicenses granted under Section 6.1.2 (a) in accordance pursuant to Section 12.5(b) of the MIT License Agreement in the event of Tekmira or any of its Affiliates or permitted Sublicensees
brings a Patent Challenge against M.I.T., (except as required under a court order or subpoena). In the event that Tekmira or any of its Affiliates or permitted Sublicensees brings a Patent Challenge against M.I.T., (except as required under a court
order or subpoena), and M.I.T. does not choose to exercise its rights to require that Alnylam terminate the MIT License Agreement, then: in the event that such a Patent Challenge is successful, Tekmira will have no right to recoup any royalties paid
during the period of challenge. In the event that such a Patent Challenge is unsuccessful, Tekmira shall reimburse Alnylam and M.I.T. for all of their costs and expenses it incurred as a result of such Patent Challenge, including without limitation
attorneys fees, court costs, litigation related disbursements, and third party and expert witness fees (collectively, Litigation Costs). Reimbursement for Litigation Costs shall made within thirty (30) days of receipt of one
or more invoices from Alnylam or M.I.T. for such Litigation



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Costs. Alnylam and M.I.T. shall have up to twelve (12) months after final resolution to submit such invoices to Tekmira for payment. To the extent a court of competent jurisdiction deems or
rules that this clause is unenforceable, then Alnylam and Tekmira agree that this clause shall be reformed by the court to the extent necessary so that it is enforceable.

Governing Law/Jurisdiction. This Schedule 6.4(b) and all disputes arising out of or related to this Schedule 6.4(b) and the MIT License Agreement, or the performance,
enforcement, breach or termination hereof, and any remedies relating thereto, shall be construed, governed, interpreted and applied in accordance with the laws of the Commonwealth of Massachusetts, U.S.A., without regard to conflict of laws
principles, except that questions affecting the construction and effect of any patent shall be determined by the law of the country in which the patent shall have been granted. The state and federal courts located in Boston, MA, USA, provide the
exclusive forum for any Patent Challenge and/or any court action between the parties relating to MIT License Agreement. Tekmira submits to the jurisdiction of such courts and waives any claim that such court lacks jurisdiction over Tekmira or its
Affiliates or constitutes an inconvenient or improper forum.



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SCHEDULE 9

EXCEPTIONS TO REPRESENTATIONS AND WARRANTIES

[*]



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