In this task, you're given a passage that represents a legal contract or clause between multiple parties. Your job is to write questions that ask the basic details corresponding to the legal contracts or clauses. Avoid questions that can be answered correctly without actually understanding the paragraph, and which might have multiple answers. The answer to each question should be unambiguous.

Example Input: EXHIBIT 10.47

               MANIFEST SYSTEM SERVICES AND CO-BRANDING AGREEMENT                --------------------------------------------------

     This Manifest System Services and Co-Branding Agreement (Agreement) is                                                                --------- made and entered into as of April 27, 1999 (the Effective Date), by and                                                  -------------- between iShip.com, Inc., a Washington corporation (the Company), and Mail                                                         ------- Boxes Etc. USA, Inc., a California corporation (MBE).                                                  ---

                                    RECITALS                                     --------

     A.  The Company has developed an Internet-based shipping system.

     B.  MBE wishes to have the Company provide an Internet-based service based on the Company's Internet-based shipping system and the MBE retail manifest system to the MBE Centers (as defined below) for use in manifesting and shipping customer packages, all subject to the terms and conditions set forth in this Agreement.

     C.  The Company and MBE desire to engage in certain co-branding activities on the Internet so as to allow customers of MBE Centers to use the Company's Internet-based shipping system in a convenient manner and to list the MBE Centers as drop-off locations and retail shipping centers.

     D.  In connection with the services to be provided hereunder, the Company desires to issue to MBE a warrant to purchase up to One million three hundred thirty three thousand three hundred thirty three (1,333,333) shares (as determined pursuant to the terms of the Warrant) of Series B Preferred Stock of the Company substantially in the form attached hereto as Exhibit A (the                                                          --------- Warrant).  -------                                     AGREEMENT                                     ---------

1.   Definitions.      -----------

     The following terms are defined for the purposes of this Agreement as follows:

     (a) Acceptance shall mean MBE's acknowledgment pursuant to Section 2           ---------- below that (i) access to the Service has been granted, and (ii) the Service functions in accordance with the Specifications.

     (b) Authorized Equipment shall mean the particular type of computer           -------------------- equipment and the specifications thereof set forth in Exhibit B attached hereto                                                       --------- on which the Service is intended to be accessed and used by the MBE Centers.

     (c) Brand Features means each party's respective trademarks, trade names,           -------------- service marks, service names and distinct brand elements that appear from time to time in each party's properties, ventures and services worldwide and are protected under U.S. copyright law or as to which each party has established trademarks or trade dress rights and any modifications to the foregoing that may be created during the term of this Agreement.

     (d) Brand Guidelines means the guidelines, if any, for use of the Brand           ---------------- Features, which may be prescribed by each party from time to time during the term of this Agreement.

     (e) Bounty Customer shall mean any Company Internet Customer or Third           --------------- Party/Company Customer.

     (f) Company Internet Customer shall have the meaning set forth on Exhibit           -------------------------                                      ------- C attached hereto. -

     (g) Company Site shall mean the web site or sites of the Company on the           ------------ Internet, one of which is currently located at www.iship.com.                                                -------------

     (h) Company Technology shall mean the Internet-based manifest system of

Source: STAMPS.COM INC, 10-Q, 11/14/2000





          ------------------ the Company that allows users to, among other things, compare various shipping services, print shipping labels and/or track shipments using the Internet.

     (i) Confidential Information shall mean the Service Documentation, the           ------------------------ Specifications and any information disclosed by one party to the other pursuant to this Agreement that is in written, graphic, machine readable or other tangible form and is marked Confidential, Proprietary or in some other manner to indicate its confidential nature, including but not limited to information related to the respective parties' business, products, proposed new products, customers or related information. Confidential Information may also include oral information disclosed by one party to the other pursuant to this Agreement, provided that such information is designated as confidential at the time of disclosure and is reduced to writing by the disclosing party within a reasonable time (not to exceed thirty (30) days) after its oral disclosure, and such writing is marked in a manner to indicate its confidential nature and delivered to the receiving party.

     (j) eBay Customer shall have the meaning set forth on Exhibit C.           -------------                                      ---------

     (k) In-Center Customer shall have the meaning set forth on Exhibit C.           ------------------                                      ---------

     (l) Intellectual Property Rights means all rights in and to trade           ---------------------------- secrets, patents, copyrights, trademarks, know-how, as well as moral rights and similar rights of any type under the laws of any governmental authority, domestic or foreign, including rights in and to all applications and registrations relating to any of the foregoing.

     (m) Link means a URL hidden behind a formatting option that may take the           ---- form of a colored item of text (such as a URL description), logo or image, and which allows a user to automatically move to or between web pages or web sites.

     (n) Listings shall mean the listing of the names, addresses, pricing and           -------- other identifying information of each MBE Center which is a party to a Subscription Agreement (as defined in Section 3(b)  [Service]).

     (o) Manifest means the exclusive MBE retail manifest system to be           -------- developed by the parties hereto in accordance with the Specifications.

                                      -2-

     (p) MBE Center shall mean each franchise of MBE operating a franchise           ---------- retail outlet within the United States which enters into a Subscription Agreement.

     (q) MBE-Generated Customer shall mean any In-Center Customer, Remote           ---------------------- Self-Service Customer or MBE Internet Customer.

     (r) MBE Internet Customer shall have the meaning set forth on Exhibit C.           ---------------------                                      ---------

     (s) MBE Sites shall mean the web sites operated by MBE on the Internet           --------- during the term of this Agreement, including but not limited to the websites currently located at www.mbe.com and www.mbeonline.com.

     (t) Remote Self-Service Customer shall have the meaning set forth on           ---------------------------- Exhibit C. ---------

     (u) Specifications shall mean the specifications for the Manifest set           -------------- forth on Exhibit D, as updated from time to time during the term of this          --------- Agreement in accordance with the terms of this Agreement.

     (v) Stations shall mean the retail manifest shipping stations within each           -------- MBE Center and the remote off-site manifest shipping stations, in each case within the United States, of any MBE Center utilizing Authorized Equipment.

     (w) Service shall mean the combination of the Company Technology and the           ------- Manifest.

     (x) Service Documentation shall mean all manuals, instructions or other           ---------------------

Source: STAMPS.COM INC, 10-Q, 11/14/2000





information provided by the Company to MBE or MBE Centers which directly relate to the functionality and operation of the Service.

     (y) Third Party/Company Customer shall have the meaning set forth on           ---------------------------- Exhibit C. ---------

     (z) Third Party/MBE Customer shall have the meaning set forth on           ------------------------ Exhibit C. ---------

     (aa) Update shall mean any and all bug fixes, error corrections, and            ------ maintenance updates of the Service.

2.   Development, Delivery and Acceptance.      ------------------------------------

     (a) Development License. Each party hereby grants to the other party a          ------------------- [***]* (except as provided in Section 18(b)  [Assignment](Assignment)), [***]* (with no  ---                                                         --- right to sublicense except as set forth below) under all of its Intellectual Property Rights to use, reproduce, modify, and create derivative works of each party's preexisting Intellectual Property Rights solely as is reasonably and actually necessary to complete the development of the Service. Each party may grant sublicenses to contractors or subcontractors it engages to work on the Service, provided

----------      *  Confidential treatment has been requested for the bracketed portion. The confidential redacted portion has been omitted and filed separately with the Securities and Exchange Commission.

                                      -3-

that any such subcontractor has entered into an enforceable agreement reasonably acceptable to the other party relating to the assignment of Intellectual Property Rights.

     (b) Delivery. The Company shall use its commercially reasonable best          -------- efforts to complete the design of the Manifest and the Service in a timely and professional manner consistent with commercial software industry standards on or before August 1, 1999 and deliver the URL and the access codes or passwords necessary to use the Service to MBE and each subscribing MBE Center on or before September 1, 1999. MBE and MBE Centers shall provide any assistance reasonably requested by the Company in connection with completing such design and effecting such delivery. The parties shall cooperate to implement a beta roll-out of the Service in approximately 100 Designated Locations of MBE Centers selected by mutual agreement of the Company and MBE on or before September 1, 1999, and thereafter shall mutually agree on a plan to make the Service available to all MBE Centers by no later than October 1, 1999.

     (c) Inspection. Following the completion of the beta roll-out and testing          ---------- of the Service, MBE shall have a period of twenty (20) business days to undertake inspection and testing of the Manifest to determine conformance with applicable Specifications. The Company shall provide any assistance reasonably requested by MBE in assessing such conformance. If MBE finds that any part of the Manifest does not conform with the applicable Specifications, MBE shall, within the inspection period, notify the Company and provide a detailed written description of such nonconformance. Following confirmation by the Company of such nonconformance, the Company will alter the Manifest within a reasonable time to correct such nonconformance.

     (d) Acceptance. Upon verification by MBE that the Manifest conform with the          ---------- Specifications in all material respects, or if MBE fails to notify the Company within the twenty (20) business day inspection period, the Service shall be deemed Accepted. MBE's sole remedy for correction of problems after Acceptance shall be under the Warranties set forth in Section 11.

3.   Provision of Service.      --------------------

     (a) Scope of Agreement. Any Service Documentation provided to MBE and/or          ------------------ MBE Centers by the Company shall be subject to all terms and conditions of this Agreement. All use of and access to the Service by MBE and all MBE Centers shall also be subject to all terms and conditions of this Agreement.

     (b) Service. The Company will operate the Service at its network operating          -------

Source: STAMPS.COM INC, 10-Q, 11/14/2000





center. The Company shall bear all costs associated with the network operating center, including without limitation hardware and software, networking equipment and bandwidth charges, redundant storage and/or mirroring across multiple geographic locations, and maintenance; provided, however, that Company and MBE                                        --------  ------- shall each pay one-half of the costs and expenses associated with transmitting information and data from the servers maintained or used by the Company to the VSAT network hub, including hardware and backhaul circuits. The Company will make the Service available to MBE Centers via one or more secure Internet sites. Each MBE Center approved by MBE that wishes to participate in the Service shall enter into a Subscription Agreement with the Company in a form to be mutually agreed upon by the parties, which form

                                      -4-

shall include appropriate obligations of the MBE Centers as set forth in this Agreement (the Subscription Agreement). MBE agrees to use its commercially                 ---------------------- reasonable best efforts to facilitate the execution of a Subscription Agreement by each participating MBE Center within a reasonable amount of time after the Effective Date. The Company hereby grants the MBE Centers a [***]* under all of                                                              --- Company's Intellectual Property Rights solely to access and use the Service in accordance with the terms and conditions of this Agreement and the Subscription Agreement.

     (c) Authorized Equipment. Each MBE Center shall be responsible for          -------------------- obtaining, installing and maintaining the Authorized Equipment at its sole cost and expense. The Subscription Agreement shall provide that an MBE Center that accesses or uses the Service on any hardware or other equipment, or in conjunction with any software, that does not constitute Authorized Equipment does so as its own risk, and the Company shall not be liable for any failure of the Service on hardware or other equipment, or in conjunction with any software, that does not constitute Authorized Equipment.

     (d) Exclusivity          -----------

         (i)   The Company shall not enter into any agreement or arrangement,      including without limitation any sale, license, service agreement,      co-branding agreement, co-marketing agreement or linking agreement with any      provider of manifesting or shipping services through non-carrier retail      shipping locations; provided, however, that:

               (A) the Company may provide listings of carrier drop-boxes or      carrier-owned counter drop-off locations specific to a particular carrier      (including, without limitation, locations within retail establishments) on      the Company Site, provided that such listings do not include retail      shipping locations, including UPS authorized shipping outlets, FedEx      authorized shipping centers and other commercial mail receiving agencies;      and

               (B) the Company may enter into any such agreement or arrangement      so long as MBE is given advance written notice of such agreement or      arrangement and such agreement or arrangement prohibits the use of the      Manifest or any Company Technology to manifest or ship packages for retail      customers and provided further that Company terminates service to any such      entity that uses the Manifest or any Company Technology to serve retail      customers.

         (ii)  MBE shall not enter into any agreement or arrangement with any      provider of an online or Internet-based manifest system other than the      Company.

         (iii) The Company may, at its option, terminate the exclusivity      provisions set forth in this Section 3(d)  [Exclusivity] upon the occurrence of any of the      following events: (A) MBE

----------      *  Confidential treatment has been requested for the bracketed portion. The confidential redacted portion has been omitted and filed separately with the Securities and Exchange Commission.

                                      -5-

     and all MBE Centers together fail to ship at least [***]* packages                                                          ---      manifested by the Service in any period of three (3) full months commencing      on the earlier of (x) March 1, 2000, and (y) the use of the Service to      manifest packages by at least [***]* MBE Centers (other than any such                                     ---      failure which is directly caused by an event of force majeure (as set forth      in Section 18(e)  [Force Majeure] or by the failure of the Service to operate in accordance      with the Specifications or by the Company's breach of any of its      obligations hereunder), or (B) MBE ceases to own at least [***]* shares of

Source: STAMPS.COM INC, 10-Q, 11/14/2000





                                                                ---      common stock of the Company (calculated on an as-converted basis and as      adjusted for any stock split, stock dividend, recapitalization or similar      transaction).

         (iv)  Beginning 18 months after the Effective Date, MBE may, at its      option, terminate the exclusivity provisions set forth in this Section 3(d)  [Exclusivity]      if (A) MBE and all MBE Centers together fail to ship at least [***]*                                                                     ---      packages manifested by the Service in any three (3) full month period      ending 18 months after the Effective Date and (B) such failure to meet the      volume requirements set forth above is related to the unsatisfactory      performance of the Service as evidenced by written communications from a      commercially significant number of MBE Centers.

4.   Support; Training.      -----------------

     (a) Updates and Service Revisions. The Company will make Updates to the          ----------------------------- Service in accordance with the requirements set forth in the Specifications at no charge for the entire term of this Agreement. Without limiting the foregoing, the Service shall be updated from time to time during the term of this Agreement to include accurate and current (i) Listings and (ii) pricing and service descriptions for each carrier supported by the Manifest, in each case as soon as reasonably practicable following the receipt by the Company of such Listings, pricing and service descriptions. As reasonably necessary, the Company shall update the Specifications to reflect such Updates and shall provide a copy of same to MBE at least once per calendar quarter. If the Company develops additional Intellectual Property Rights that are made available without development charge to other customers of the Company, the Company will also make such Intellectual Property Rights available to MBE without development charge.

     (b) MBE Center Support. MBE shall have the right to designate in writing up          ------------------ to five (5) second-level support personnel individuals and alternates to such individuals as contact persons (the Contact Persons) (although the parties may                                      --------------- mutually agree to increase such number of Contact Persons to ensure adequate support exists for the MBE Centers) Such Contact Persons shall interface with the MBE Centers with respect to matters relating to the Service and may transmit request assistance and descriptions of problems encountered with the Service to the Company via electronic mail, fax, or overnight mail. The Company will provide telephone support to the Contact Persons at a level and in such a manner as the parties mutually agree to be adequate. The Company shall use reasonable efforts to provide the Contact Persons with answers and solutions to problems encountered by MBE or the MBE Center in the course of MBE's or MBE Centers' normal and proper use of the Service in accordance with the terms and

----------      *  Confidential treatment has been requested for the bracketed portion. The confidential redacted portion has been omitted and filed separately with the Securities and Exchange Commission.

                                      -6-

conditions of this Agreement. Only the Contact Persons may contact the Company in connection with matters relating to technical support, and the Company shall have no obligation to answer questions or assist MBE or MBE Centers' personnel other than the Contact Persons. The Company shall provide a reasonable amount of training and training materials to the Contact Persons to provide the Contact Persons with information concerning the Service and to assist the Contact Persons in providing support to the MBE Centers and other personnel of MBE. MBE shall take reasonable steps to ensure that MBE Centers and personnel of MBE other than the Contact Persons do not contact the Company directly with respect to issues relating to support of the Service. The Company shall take reasonable steps to provide adequate industry standard support of all Internet users of the Company Site and other sites using the Company Technology. MBE and MBE Centers may refer all support questions relating directly to the Company Site or the Company Technology to the Company in accordance with the foregoing.

5.   Records; Audits.      ---------------

     The Company shall maintain complete and accurate records of the number of packages shipped by the MBE Centers using the Service and all payments due or accrued to the Company by MBE Centers hereunder. MBE shall, at any time during the term of this Agreement, be entitled to audit all such records upon ten (10) days written notice to the Company, in order to confirm the accuracy of such records and conformance with the terms and conditions of this Agreement; provided, however, that no more than one (1) such audit may be conducted in any --------  ------- ninety (90)-day period. Any such audit shall be performed at MBE's expense during the Company's normal business hours; provided, however, that in the event                                             --------  ------- that such audit reveals any non-compliance with any term of this Agreement by the Company, the Company shall bear the cost of such audit.

Source: STAMPS.COM INC, 10-Q, 11/14/2000





6.   Additional Development.      ----------------------

     (a) Request for Proposal. From time to time, MBE may request additional          -------------------- custom software or other custom development to be provided by the Company under this Agreement. If MBE has a requirement for a specific enhancement or modification of the Service, MBE will identify to the Company in writing a summary of such requirement (the Request for Proposal). Such Request for                                   -------------------- Proposal will provide a description sufficient to enable the Company to determine the general demand for and its plans, if any, to develop the same or similar enhancements or modifications.

     (b) Terms and Conditions. If the Company decides that it has the technical          -------------------- ability to fulfill the Request for Proposal, then the Company will respond to MBE within forty-five (45) days of receiving the Request for Proposal, stating the terms and conditions upon which the Company would be able to undertake such development, including, but not limited to, changes to the Specifications, custom development charges, and a proposed delivery schedule.

     (c) Development and Billing Rates. The Company shall perform such          ----------------------------- development in accordance with the highest professional standards. The cost of such development shall be the Company's standard billing rates then in effect (in addition to reimbursement of any expenses, in accordance with the Company's standard practices), which shall be paid by MBE within thirty (30) days of receipt of an invoice therfor. No additional fees or bounties shall be owed or

                                      -7-

payable in connection with such development, unless such development results in a revenue-generating feature or functionality of the Service which is outside of the scope of the Specifications, in which case the parties shall negotiate in good faith to mutually agree upon a reasonable fee mechanism therefor and/or reimbursement of development expenses. Upon completion of such additional development, the Company shall update the Specifications to reflect such additional development and shall provide a copy of same to MBE.

     (d) Credit. MBE shall receive a credit applicable to such billing rates          ------ (but not to reimbursement of expenses) for any development performed by the Company under this Section 6 equal to [***]* of the total fees paid by MBE and                                        --- all MBE Centers, which credit shall be reflected on a monthly statement by the Company to MBE. Any such credit must be used within twelve (12) months of receipt of payment by the Company.

7.   Ownership.      ---------

     (a) General. The Company will have full and exclusive right, title and          ------- ownership interest in and to the Service and the Specifications and the Intellectual Property Rights therein. The Company is, and shall be, the sole owner of all inventions, discoveries and/or enhancements relating to the Service and the Specifications, including all copies, translations, compilations, partial copies, derivative works and updated works, whether partial or complete and whether or not merged into other program materials and whether in written or unwritten form. Except as authorized by this Agreement (including MBE's right to use the Specifications as set forth in Section 15(d)(iv)  [Effect of Termination]) or as otherwise agreed in writing, MBE and MBE Centers may not, directly, or through any person or entity, in any form or manner, copy, distribute, reproduce, incorporate, use or allow access to the Service or the Specifications, or modify, prepare derivative works of, decompile, reverse engineer, disassemble or otherwise attempt to derive source code or object code from the Service or the Specifications.

     (b) Proprietary Notices. MBE will ensure that all copies of Service          ------------------- Documentation made in accordance with this Agreement will incorporate copyright and other proprietary notices in the same manner that the Company incorporates such notices in the Service or in any manner reasonably requested by the Company, and MBE agree not to delete or modify any such notices incorporated in the Service Documentation in any respect. MBE will also permit the Company to enter any of MBE's premises during regular business hours to inspect the use of the Service in any reasonable manner. The Subscription Agreement shall provide that MBE Centers will comply with the terms of this Section 7(b)  [Proprietary Notices].

     (c) List of Trademarks. Each party (the Granting Party) hereby grants the          ------------------                   -------------- other party (the Using Party) a limited license to use its Brand Features in                   ----------- connection with the marketing, distribution, provision of access to, and support of the Service. The Using Party agrees that such Brand Features are the exclusive property of the Granting Party and that all usage of such marks and any goodwill established by the use of such marks shall inure to the benefit of

Source: STAMPS.COM INC, 10-Q, 11/14/2000





the Granting Party and that this Agreement does not confer any goodwill or other

----------      *  Confidential treatment has been requested for the bracketed portion. The confidential redacted portion has been omitted and filed separately with the Securities and Exchange Commission.

                                      -8-

interests in such marks on the Using Party The Using Party will comply with the Granting Party's Brand Guidelines. The Using Party shall provide to the Granting Party examples of any use of the Brand Features of the Granting Party prior to use. The Using Party shall modify or discontinue such use if requested by the Granting Party. Neither party shall adopt or attempt to register any trademark, trade name, or service mark which is confusingly similar to the other party's Brand Features such as Ship Mailboxes (and the like).

     (d) Customer Information. The Company and MBE shall jointly own (without          -------------------- duty to account) all customer lists and related customer data gathered through the use of the Service by customers of MBE and MBE Centers (Customer Data).                                                              ------------- During the term of this Agreement, neither party shall provide any Customer Data to any third party (other than MBE Centers or an affiliate of MBE or the Company) without the prior written consent of the other party The Company shall initially provide the Customer Data to MBE in acceptable electronic format as soon as practicable following the reasonable request of MBE, and, once MBE (at its sole cost and expense) has implemented an appropriate means to warehouse the Customer Data, the parties shall take reasonable steps to transfer all existing Customer Data to MBE and implement a system whereby the Customer Data is automatically downloaded and provided to MBE on a periodic basis. The Company agrees to retain the Customer Data in accordance with the Company's own data retention policies, and in any case for no less than 13 months from the creation of such Customer Data. The Company, MBE, affiliates of the Company and MBE, and the MBE Centers may each use the Customer Data for marketing and other purposes in accordance with a mutually agreed upon privacy policy and in accordance with any mutually agreed upon privacy policy displayed to customers in connection with the Service. Notwithstanding the foregoing, the Company agrees not to use any Customer Data to solicit any MBE-Generated Customers with respect to any services offered by the Company; provided, however, that the Company may use Customer Data to solicit such customers who have a shipping account with a carrier or with respect to services not offered by MBE and the MBE Centers. Notwithstanding the foregoing, MBE agrees not to use any Customer Data in any manner which would reasonably be expected to eliminate any Bounty Package payment to the Company hereunder.

     (e) Reserved Rights. Without limitation of the foregoing, each party          --------------- reserves all rights other than those expressly granted in this Agreement, and no licenses are granted except as expressly set forth herein.

     (f) Notices. Each party agrees to display mutually agreeable trademark and          ------- copyright notices or legends of the other party when using such other party's Brand Features. Each party shall in advance submit to the other party the proposed placement of such notices or legends (including, without limitation, the place and manner of incorporation into electronic media or transmissions), and such other party shall have the right, acting reasonably, to approve the same.

8.   Payments; Taxes.      ---------------

     (a) Basic Fee. In consideration for the Service provided hereunder, for          --------- each package shipped utilizing the Service (other than a package which is shipped first class by the U.S. Postal

                                      -9-

Service), the Company shall be entitled to receive the amount of [***]* (the                                                                   --- Basic Fee). MBE agrees to use its commercially reasonable efforts to execute  --------- agreements, or to facilitate the execution of agreements among the appropriate parties, so that such Basic Fee is paid to the Company directly from the carrier which ships such package no later than fifteen (15) days following the end of the month in which such package was shipped. If MBE is unable, despite its commercially reasonable efforts, to facilitate the execution of such an agreement with one or more carriers, the Basic Fee shall be paid by each MBE Center directly pursuant to the terms of the Subscription Agreement.

     (b) Bounty Fee. In further consideration for the Service and the other          ---------- obligations of the Company hereunder, for each package shipped by or through an MBE Center by a Bounty Customer who pays the shipping rates charged by such MBE

Source: STAMPS.COM INC, 10-Q, 11/14/2000





Center, (Bounty Package), the Company shall be entitled to receive the           -------------- following amounts (the Bounty Fee) from each such MBE Center, for Bounty                         ---------- Packages shipped during each calendar month:

         (i)   in the event that less than [***]* Bounty Packages shall have                                             --- been shipped by the MBE Centers during the twelve (12) full months prior to the shipping of such Bounty Package (or, if such information is not yet available for the month prior to the month in which such Bounty Package is shipped, the most recent twelve (12) full months for which such information is available) (the Measurement Period), the amount of [***]* per Bounty Package shipped via       ------------------                   --- air transportation and the amount of [***]* per Bounty Package shipped via                                       --- ground transportation;

         (ii)  in the event that at least [***]* but less than [***]* Bounty                                            ---                  --- Packages have been shipped by the MBE Centers during the Measurement Period, the amount of [***]* per Bounty Package shipped via air transportation and the            --- amount of [***]* per Bounty Package shipped via ground transportation;            ---

         (iii) in the event that at least [***]* but less than [***]* Bounty                                            ---                  --- Packages shall have been shipped by the MBE Centers during the Measurement Period, the amount of [***]* per Bounty Package shipped via air transportation                        --- and the amount of [***]* per Bounty Package shipped via ground transportation;                    --- and

         (iv)  in the event that at least [***]* Bounty Packages shall have been                                            --- shipped by the MBE Centers during the Measurement Period, the amount of [***]*                                                                          --- per Bounty Package shipped via air transportation and the amount of [***]* per                                                                      --- Bounty Package shipped via ground transportation.

     (c) eBay Fee. In further consideration for the Service and the other          -------- obligations of the Company hereunder, for each package shipped by or through an MBE Center by an eBay Customer (eBay Package), the Company shall be entitled                                  ------------ to receive the following amounts from such MBE Center for eBay Packages shipped during each calendar month, in each case

----------      *  Confidential treatment has been requested for the bracketed portion. The confidential redacted portion has been omitted and filed separately with the Securities and Exchange Commission.

                                      -10-

after deduction of the lesser of (x) [***]* and (y) the amount paid or to be                                       --- paid by such eBay Customer directly to the Company with respect to the shipment of such package (the eBay Fee):                       --------

         (i)   in the event that at least [***]* but less than [***]* eBay                                            ---                  --- Packages have been shipped by MBE and the MBE Centers during the Measurement Period, the amount of [***]* per eBay Package shipped via air transportation and                        --- the amount of [***]* per eBay Package shipped via ground transportation;                ---

         (ii)  in the event that at least [***]* but less than [***]* eBay                                            ---                  --- Packages shall have been shipped by the MBE Centers during the Measurement Period, the amount of [***]* per eBay Package shipped via air transportation and                        --- the amount of [***]* per eBay Package shipped via ground transportation; and                ---

         (iii) in the event that at least [***]* eBay Packages shall have been                                            --- shipped by the MBE Centers during the Measurement Period, the amount of [***]*                                                                          --- per eBay Package shipped via air transportation and the amount of [***]* per                                                                    --- eBay Package shipped via ground transportation.

Source: STAMPS.COM INC, 10-Q, 11/14/2000





     (d) Payment Cycle. The Company shall bill and collect all amounts due to          ------------- the MBE Centers for Bounty Packages and eBay Packages from each Bounty Customer or eBay Customer, as the case may be, by processing credit card transactions over the Internet. The Company shall pay such amounts, less the relevant Bounty Fee or eBay Fee then in effect, to MBE on the next business day or as soon as reasonably practicable (but in any event within one week) following the shipment date of each package, and MBE agrees to distribute such amounts to the MBE Centers. At the Company's option, Bounty Customers or eBay Customers may also be entitled to pay directly for the shipment of such Bounty Package or eBay Package at MBE Centers, and the Company shall be entitled to deduct the relevant Bounty Fee or eBay Fee then in effect from any payments due to such MBE Center for shipment of Bounty Packages, eBay Packages or otherwise.

     (e) Right of Offset. In the event of any default in payment by an MBE          --------------- Center under this Section 8 which continues uncured for a period of thirty (30) days, in addition to any rights or remedies which the Company may have at law or equity or pursuant to this Agreement, the Company shall have the right (but not the obligation) to (i) terminate providing the Service to such MBE Center and (ii) offset any amounts owed to the Company by such MBE Center from any payments owed to such MBE Center by the Company.

     (f) Taxes. MBE shall pay or reimburse the Company for all taxes, duties and          ----- assessments imposed on MBE or the Company in connection with the license or use of the Service by MBE under this Agreement, including without limitation all sales, use, excise and other taxes and duties, excluding only taxes based upon the Company's net income. MBE shall

----------      *  Confidential treatment has been requested for the bracketed portion. The confidential redacted portion has been omitted and filed separately with the Securities and Exchange Commission.

                                      -11-

hold the Company harmless from all claims and liability arising from MBE's failure to report or pay any such taxes, duties and assessments.

     (g) [***]*           ---

     (h) Independent MBE Centers. Notwithstanding any other provision of this          ----------------------- Agreement, Company acknowledges and agrees that each participating MBE Center is an independently owned and operated franchise and that MBE is not responsible for any debts or acts or omissions of its franchisees. Each use by an MBE Center of the Service shall be pursuant to the terms and conditions of a Subscription Agreement and each participating MBE Center shall be responsible for paying to Company any charges incurred. Company further acknowledges that each participating MBE Center may choose to make the Service (or some portion thereof) available to customers of MBE Centers.

9.   Co-Marketing Obligations.      ------------------------

     (a) Listings. MBE shall supply and regularly update the Listings, and the          -------- Company shall include the Listings in the Company Site and shall use commercially reasonable best efforts to include such Listings on other third party web sites utilizing the Company Technology.

     (b) Mutual Links. During the term of this Agreement, each party will ensure          ------------ that the relevant pages in each party's website will include Links to the other party's site(s). Without limiting the foregoing, and within the first three (3) months following the Effective Date, the Company shall assist MBE at no additional charge in developing a series of Links between the MBE Site and the Company Site. The purpose of such Links shall be to allow MBE Internet Customers to access certain agreed-upon features provided by the Company Site. At a minimum, such functionality shall be equivalent to that provided by the Company Site to public Internet users. As mutually agreed upon by the parties, the parties may place advertising banners promoting their products and services on appropriate pages of the other party's website.

     (c) Marketing and Public Relations. So long as such activities are in          ------------------------------ compliance with MBE Brand Guidelines then in effect (i) the Company shall display the logo of MBE on the Company Site and identify MBE as the exclusive retail shipping partner of the Company, (ii) to the extent reasonably practicable, the Company shall include the logo of MBE on every carrier or shipping label generated pursuant to this Agreement and (iii) the parties agree to use reasonable efforts to cooperate to develop a co-branded Company/MBE logo to display on Internet-generated shipping labels generated pursuant to this Agreement.

Source: STAMPS.COM INC, 10-Q, 11/14/2000





10.  Confidential Information.      ------------------------

     (a) Limited Access. MBE and MBE Centers agree not to provide or otherwise          -------------- make available any Service Documentation or other Confidential Information of the Company to any person other than employees, consultants, contractors or agents of MBE and MBE Centers with a

----------      *  Confidential treatment has been requested for the bracketed portion. The confidential redacted portion has been omitted and filed separately with the Securities and Exchange Commission.

                                      -12-

need to use such Service Documentation or Confidential Information in accordance with the terms of this Agreement.

     (b) Confidentiality. Each party shall treat as confidential all          --------------- Confidential Information of the other party, shall not use such Confidential Information except as set forth in this Agreement, and shall use reasonable efforts not to disclose such Confidential Information to any third party. Without limiting the foregoing, each of the parties shall use at least the same degree of care which it uses to prevent the disclosure of its own confidential information of like importance to prevent the disclosure of Confidential Information disclosed to it by the other party under this Agreement. Each party shall promptly notify the other party of any actual or suspected misuse or unauthorized disclosure of the other party's Confidential Information.

     (c) Exceptions. Each party agrees not to disclose or otherwise make such          ---------- Confidential Information available to third parties without the other party's prior written consent except to the extent that the Confidential Information (i) was in the public domain at the time it was disclosed or has entered the public domain through no fault of such party, (ii) was known to such party, without restriction, at the time of disclosure, as demonstrated by files in existence at the time of disclosure, (iii) is disclosed with the prior written approval of the other party, (iv) was independently developed by such party without any use of Confidential Information, (v) became known to such party, without restriction, from a source other than the other party without breach of this Agreement by such party and otherwise not in violation of the other party's rights, (vi) is required to be disclosed under securities laws or (vii) is disclosed pursuant to the order or requirement of a court, administrative agency, or other governmental body; provided, however, that such party shall use                                     --------  ------- all reasonable efforts to provide prompt, written, and sufficient advance notice thereof to the other party to enable the other party to seek a protective order or otherwise prevent or restrict such disclosure. Each party agrees that to take appropriate action by instruction, agreement, or otherwise with its employees, agents and representatives to satisfy such party's obligations under this Agreement with respect to use, copying, modification, protection and security of Confidential Information.

     (d) Return of Confidential Information. Upon expiration or termination of          ---------------------------------- this Agreement, each party shall return all Confidential Information received from the other party.

     (e) Confidentiality of Agreement. Each party shall be entitled to disclose          ---------------------------- the existence of this Agreement, but agrees that the terms and conditions of this Agreement shall be treated as Confidential Information and shall not be disclosed to any third party; provided, however, that each party may disclose                               --------  ------- the terms and conditions of this Agreement; (i) as required by any court or other governmental body; (ii) as otherwise required by law, (iii) to legal counsel of the parties; (iv) in confidence, to accountants, banks, and financing sources and their advisors; (v) in connection with the enforcement of this Agreement or rights under this Agreement; or (vi) in confidence, in connection with an actual or proposed merger, acquisition, or similar transaction.

11.  Representations, Warranties and Covenants.      -----------------------------------------

     (a) Warranty. Company represents and warrants that during the term of this          -------- Agreement the Service shall confirm to its specifications and the Specifications in all material

                                      -13-

respects, provided that the Service is properly used in accordance with the terms of this Agreement and the Subscription Agreement, and shall not contain a higher number of, or more serious errors, than would be expected by a reasonable

Source: STAMPS.COM INC, 10-Q, 11/14/2000





commercial user of a service similar to the Service.

     (b) Outages. After Acceptance and during the term of this Agreement,          ------- Company will use its best efforts to make the Service available to the MBE Centers from 4 a.m. to 9 p.m. PST every day. Scheduled maintenance which may result in an interruption to the Service shall be performed outside of these hours. Each party shall provide the other party with reasonable and prompt notification of all known failures of the Service to be operational during these hours (Outages). The Company shall make qualified personnel available to MBE personnel by telephone, e-mail or pager (response within twenty (20) minutes) for the reporting of Outages at no additional charge. Company will then use its best efforts to resolve the Outage as soon as possible. Within six months of the Effective Date, the Company and MBE will jointly develop a disaster recovery plan outlining plans to respond to Outages.

     (c) No Conflicts. The Company is not currently subject and throughout the          ------------ term will not be subject to any obligations or disabilities that will or might prevent or interfere with fully keeping and performing all of the agreements, covenants and conditions to be kept or performed hereunder, and the Company has not made nor will make any agreement, commitment, grant or assignment, and will not do, or omit to do, any act or thing that could or might interfere or impair the complete enjoyment of the rights granted and the Services to be provided hereunder.

     (d) Originality. The Company represents and warrants that it currently has          ----------- and throughout the term will have full title to and ownership of (or licenses to) the Service and all Intellectual Property Rights embodied in or used in connection therewith, free and clear of liens, claims and encumbrances, and that it has full power and authority to grant the rights provided herein.

     (e) Year 2000. Company represents, warrants and covenants that the Service          --------- includes design, performance and functionality such that the Service will not generate any invalid and/or incorrect date-related results when used during any year prior to, during or after the calendar year 2000.

     (f) Remedies. The Company's sole and exclusive liability and MBE's sole and          -------- exclusive remedy for breach of the representations and warranties set forth in this Section 11 shall be, at the Company's election, to either (i) use its best efforts to make the Service perform in accordance with the Specifications in all material respects as soon as reasonably practicable, or (ii) return the Fees paid by MBE and MBE Centers for the Service in which case MBE would have the right to either terminate the entire Agreement or the portions of the Agreement affected by breach of the representation and warranties. In the event that the Company elects (i) of this sub-section in accordance with the terms and conditions set forth herein and is unable to make the Service perform in accordance with the Specifications in all material respects within twenty one (21) days after such election, MBE may then elect to continue to proceed under (i) or MBE may elect to proceed under (ii) of this sub-section.

                                      -14-

     (g) Disclaimer. EXCEPT FOR THE EXPRESS WARRANTIES STATED ABOVE, NEITHER          ---------- PARTY MAKES ANY PROMISES, REPRESENTATIONS OR WARRANTIES, EITHER EXPRESS, IMPLIED, STATUTORY, OR OTHERWISE, WITH RESPECT TO THE SYSTEM OR THE MANIFEST, INCLUDING ITS CONDITION, ITS CONFORMITY TO ANY REPRESENTATION OR DESCRIPTION, OR THE EXISTENCE OF ANY LATENT OR PATENT DEFECTS, AND EACH PARTY SPECIFICALLY DISCLAIMS ALL IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF THIRD PARTY INTELLECTUAL PROPERTY RIGHTS.

12.  Indemnity for Patent or Copyright Infringement.      ----------------------------------------------

     (a) Indemnity. The Company will defend, at its expense, any action brought          --------- against MBE and its directors, officers, employees, agents, affiliates, successors, assigns or franchisees (Indemnitees) based upon a claim that the Service used properly in accordance with the terms of this Agreement and the Subscription Agreement infringes a U.S. patent or copyright or misappropriates a trade secret under U.S. law (a Claim). The Company further agrees to pay all damages and costs (including reasonable attorneys' fee and expert witness fees) incurred by any Indemnitee in connection with such Claim. The Company shall have sole control of any such action or settlement negotiations. Without the consent of MBE, which shall not be unreasonably withheld, the Company shall not settle any such Claim in a manner that (i) imposes damages or costs on any Indemnitee not covered by the Company hereunder or (b) imposes any injunctive or other non-monetary relief on any Indemnitee. MBE shall notify the Company promptly in writing of each such Claim and gives the Company all authority, information and assistance, at the Company's expense, reasonably necessary to settle or defend such claim.

     (b) Remedy Options. If the Service becomes, or in the opinion of the

Source: STAMPS.COM INC, 10-Q, 11/14/2000





         -------------- Company may become, the subject of a claim of infringement of any U.S. patent or copyright, the Company shall notify MBE, and the Company may, at its option: (i) procure for MBE and MBE Centers the right to use the Service free of any liability or (ii) replace or modify the Service to make it non-infringing.

     (c) Sole and Exclusive Liability. THIS SECTION 12 SETS FORTH THE SOLE AND          ---------------------------- EXCLUSIVE LIABILITY OF THE COMPANY FOR INFRINGEMENT OF THIRD PARTY INTELLECTUAL PROPERTY RIGHTS.

     (d) Exclusions from Indemnification. The Company assumes no liability, and          ------------------------------- shall have no obligation to defend or pay any amounts to any Indemnitee hereunder for (i) any method or process in which the Service may be used by MBE or any MBE Center which is not set forth in the Specifications, (ii) any improper use of the Service by an Indemnitee or (iii) the combination, operation or use of the Service with non-Company software or data, if such infringement could have been avoided but for the combination, operation or use of the Service with such programs or data.

13.  Indemnification.      ---------------

     (a) Indemnification by the Company. The Company, at its own expense, will          ------------------------------ indemnify, defend and hold harmless MBE, and its employees, franchisees, representatives and

                                      -15-

agents, against any claim, suit, action, or other proceeding brought against MBE or such party, to the extent that such claim, suit, action or other proceeding is based on or arises from.

         (i)   any misrepresentation or breach or representation or warranty of the Company contained herein; or

         (ii)  any breach of any covenant or agreement to be performed by the Company hereunder.

     The Company will pay all costs, damages, and expenses, including, but not limited to, reasonable attorneys' fees and costs awarded against or otherwise incurred by MBE in connection with or arising from any such claim, suit, action or proceeding attributable to any such claim.

     (b) Indemnification by MBE. MBE, at its own expense, will indemnify, defend          ---------------------- and hold harmless the Company, and its employees, representatives and agents, against any claim, suit, action, or other proceeding brought against the Company or such party, to the extent that such claim, suit, action or other proceeding is based on or arises from:

         (i)   any misrepresentation or breach of representation or warranty of MBE contained herein; or

         (ii)  any breach of any covenant or agreement to be performed by MBE hereunder.

     MBE will pay all costs, damages, and expenses, including, but not limited to, reasonable attorneys' fees and costs awarded against or otherwise incurred by the Company in connection with or arising from any such claim, suit, action or proceeding attributable to any such claim.

     (c) Procedures. Each party's obligation to indemnify the other hereunder          ---------- shall be conditioned upon (i) the indemnified party providing the indemnifying party with prompt notice of any claim that could lead to a claim for indemnification, (ii) the indemnified party permitting the indemnifying party to assume and control the defense of such action, with counsel chosen by the indemnifying party (who shall be reasonably acceptable to the indemnified party) and (iii) the indemnified party not entering into any settlement or compromise of any such claim without the indemnifying party's prior written consent, which shall not be unreasonably withheld or delayed.

                                      -16-

14.  Limitation of Liability. Notwithstanding anything to the contrary in      ----------------------- this Agreement, in no event shall either party's liability under any provision of this Agreement or otherwise arising out of or related to this Agreement (other than payments due or accrued under Section 8, exceed the amounts paid by MBE and the MBE Centers to the Company pursuant to this Agreement. The parties further agree that NEITHER PARTY WILL BE LIABLE FOR ANY LOST PROFITS, FOR COSTS OF PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES OR FOR ANY CLAIM OR DEMAND AGAINST A PARTY BY ANY OTHER PARTY. IN NO EVENT WILL EITHER PARTY BE LIABLE FOR

Source: STAMPS.COM INC, 10-Q, 11/14/2000





CONSEQUENTIAL, INCIDENTAL, SPECIAL, INDIRECT, OR EXEMPLARY DAMAGES ARISING OUT OF THIS AGREEMENT, EVEN IF A PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES, AND UNDER ANY CAUSE OF ACTION, INCLUDING NEGLIGENCE. THESE LIMITATIONS SHALL APPLY NOTWITHSTANDING ANY FAILURE OF ESSENTIAL PURPOSE OF ANY LIMITED REMEDY.

15.  Term and Termination.      --------------------

     (a) Term and Renewal Option. The initial term of this Agreement shall          ----------------------- commence on the Effective Date and end on the fifth anniversary of the Effective Date. MBE shall have the right to elect by written notice to the Company at any time between two (2) and six (6) months prior to the end of such initial term or any subsequent Renewal Period (as defined below), to notify the Company that MBE elects to seek to extend such term for additional two (2)-year periods (each a Renewal Period) In the event of such election, MBE and the Company shall have  -------------- a period of sixty (60) days in which to negotiate commercially reasonable Basic Fees, Bounty Fees and eBay Fees (and other applicable fees) (Fee Schedule)                                                               ------------ under which the Company would be willing to renew this Agreement for such Renewal Period. If the parties are unable to reach agreement during such sixty (60) day period, either party may request that the Fee Schedule be submitted to arbitration pursuant to Section 18(m)  [Arbitration]. If MBE notifies the Company of its intent to so renew prior to the end of such initial term or such Renewal Period, the term of this Agreement shall automatically be extended for the Renewal Period and, other than the Fee Schedule, all of the terms and conditions of this Agreement shall remain in full force and effect.

     (b) Termination.          -----------

         (i)   Either party may, at its option, terminate this Agreement upon notice to the other party if (A) the other party materially fails to comply with any of the material terms and conditions of this Agreement and (B) if such default has not been cured within thirty (30) days (forty five (45) days if required by the nature of the breach) after written notice to the other party or, if such breach is not curable within thirty (30) days (forty five (45) days if required by the nature of the breach), reasonable efforts and progress are not being made to cure such breach.

         (ii)  This Agreement shall terminate, without notice, (A) upon the institution by or against either party of insolvency, receivership or bankruptcy proceedings or any other proceedings for the settlement of such party's debts, (B) upon either party's making an assignment for the benefit of creditors, or (C) upon either party's dissolution or ceasing to do business.

                                      -17-

     (c) Termination Period.          ------------------

         (i)   If this Agreement is terminated or expires in accordance with this Section 15 (other than termination by the Company in the event of an uncured material breach by MBE), then MBE shall have a period of up to twenty-four (24) months from and after the date of such termination, to make arrangements with respect to the conversion of the Service to a non-Company manifest system (the Termination Period). The date when the Service shall have                       ------------------ been converted to a non-Company manifest system shall hereinafter be referred to as the Termination Completion Date and shall be the effective date of          -------------------------- termination of this Agreement, in such event. During the Termination Period each party will continue to perform its obligations hereunder, and MBE and MBE Centers will continue to pay any applicable fees and payments hereunder to the Company. MBE shall keep the Company informed as reasonably necessary with respect to such conversion. MBE also shall give the Company written notice of the estimated Termination Completion Date promptly after a reasonably definitive projected Termination Completion Date is known by MBE, and shall give written notice to the Company promptly after any change in such estimated Termination Completion Date.

         (ii)  During the Termination Period, the Company will give reasonable cooperation and support to MBE to assure an orderly and efficient transition and, without limiting the generality of the foregoing, at MBE's expense, the Company shall be obligated to provide MBE with data reasonably necessary for MBE to convert or implement the non-Company systems, procedures and practices.

     (d) Effect of Termination.          ----------------------

         (i)   Sections 1, 7, 10, 13, 14, 15, 16 and 18, as well as any payments accrued prior to termination of this Agreement, shall survive any termination or expiration of this Agreement.

         (ii)  Within thirty (30) days after the Termination Completion Date,

Source: STAMPS.COM INC, 10-Q, 11/14/2000





each party shall, at its own expense, destroy or return to the Company and make no further use of, any property, materials or other items of the other party and shall certify, in writing that it has done so

         (iii) Nothing contained herein shall limit any other remedies that either party may have for the default of the other party under this Agreement nor relieve either party of any of their obligations incurred prior to termination of this Agreement.

         (iv)  During the Termination Period and thereafter, and notwithstanding any other provision of this Agreement, MBE will be free to use its own personnel, and/or engage or contract with any third party to use the Specifications to design, develop and market an Internet-based manifest system similar to the Manifest (including products that contain functionality similar to the Service and which have a look and feel similar or identical to the Manifest), in each case solely for the benefit of MBE and the MBE Centers and international franchisees or licensees of MBE. MBE shall not use the object code or source code of the Manifest in the course of such development. Subject to MBE's compliance with the provisions of this subsection (iv), the Company shall not

                                      -18-

assert any claim against MBE under the Company's Intellectual Property Rights in the Specifications or the Manifest in connection with such development, other than for use of the Company's trademarks, trade names, service marks and service names. Neither party shall have the right to retain or use the specific software implementation of the Manifest developed by the parties hereunder; provided, however, that the Company may retain one (1) copy of the software implementation of the Manifest solely for archival and evidentiary purposes.

16.  Publicity. Upon execution of this Agreement, the parties will jointly      --------- prepare a mutually acceptable description of their business relationship as contemplated by this Agreement which may be used by either party in press releases and other marketing materials from time to time during the term of this Agreement. Additional press releases or publicity materials shall be approved by each party in writing prior to release.

17.  Warrant. On the Effective Date, the Company shall issue the Warrant to      ------- MBE, upon the terms and subject to the conditions set forth therein.

18.  Miscellaneous.      -------------

     (a) Amendments and Waivers. Any term of this Agreement may be amended or          ---------------------- waived only with the written consent of the parties or their respective successors and assigns. Any amendment or waiver effected in accordance with this Section 18(a)  [Amendments and Waivers] shall be binding upon the parties and their respective successors and assigns.

     (b) Assignment. Each party shall have the right to assign its rights,          ---------- obligations and privileges hereunder to an assignee in connection with any merger, acquisition or sale of all or substantially all of the business to which this Agreement relates. Each MBE Center shall have the right to assign its rights and obligations and privileges under a Subscription Agreement in connection with any merger, acquisition or sale of all or substantially all of such MBE Center's assets. The terms and conditions of this Agreement shall inure to the benefit of and be binding upon the respective permitted successors and assigns of the parties. Nothing in this Agreement, express or implied, is intended to confer upon any party other than the parties hereto or their respective successors and assigns any rights, remedies, obligations, or liabilities under or by reason of this Agreement, except as expressly provided in this Agreement.

     (c) Entire Agreement. This Agreement is the product of both of the parties          ---------------- hereto, and constitutes the entire agreement between such parties pertaining to the subject matter hereof, and merges all prior negotiations and drafts of the parties with regard to the transactions contemplated herein. Any and all other written or oral agreements existing between the parties hereto regarding such transactions are expressly canceled.

     (d) Independent Contractor. Neither party shall, for any purpose, be deemed          ---------------------- to be an agent of the other party and the relationship between the parties shall only be that of independent contractors. Neither party shall have any right or authority to assume or create any obligations or to make any representations or warranties on behalf of any other party, whether express or implied, or to bind the other party in any respect whatsoever.

                                      -19-

Source: STAMPS.COM INC, 10-Q, 11/14/2000





     (e) Force Majeure. In the event that either party is prevented from          ------------- performing or is unable to perform any of its obligations under this Agreement (other than a payment obligation) due to any Act of God, fire, casualty, flood, earthquake, war, strike, lockout, epidemic, destruction of production facilities, riot, insurrection, material unavailability, or any other cause beyond the reasonable control of the party invoking this section, and if such party shall have used its best efforts to mitigate its effects, such party shall give prompt written notice to the other party, its performance shall be excused, and the time for the performance shall be extended for the period of delay or inability to perform due to such occurrences. If a force majeure event causes the Company to allocate limited resources among all of its customers, [***]*.                                                                        --- The Company shall resume operation of the Service as soon as reasonably practicable upon conclusion of any force majeure event. Notwithstanding the foregoing, if such party is not able to perform within sixty (60) days after the event giving rise to the excuse of force majeure, the other party may terminate the Agreement.

     (f) Governing Law. This Agreement and all acts and transactions pursuant          ------------- hereto and the rights and obligations of the parties hereto shall be governed, construed and interpreted in accordance with the laws of the State of California, without giving effect to principles of conflicts of law.

     (g) Severability. If one or more provisions of this Agreement are held to          ------------ be unenforceable under applicable law, the parties agree to renegotiate such provision in good faith, in order to maintain the economic position enjoyed by each party as close as possible to that under the provision rendered unenforceable. In the event that the parties cannot reach a mutually agreeable and enforceable replacement for such provision, then (i) such provision shall be excluded from this Agreement, (ii) the balance of the Agreement shall be interpreted as if such provision were so excluded and (iii) the balance of the Agreement shall be enforceable in accordance with its terms.

     (h) Waiver. The waiver of any particular breach or default or any delay in          ------ exercising any rights shall not constitute a waiver of any subsequent breach or default.

     (i) Notices. Any notice required or permitted by this Agreement shall be in          ------- writing and shall be deemed sufficient upon receipt, when delivered personally or by courier, overnight delivery service or confirmed facsimile, or forty-eight (48) hours after being deposited in the regular mail as certified or registered mail (airmail if sent internationally) with postage prepaid, if such notice is addressed to the party to be notified at such party's address or facsimile number as set forth below, or as subsequently modified by written notice.

----------      *  Confidential treatment has been requested for the bracketed portion. The confidential redacted portion has been omitted and filed separately with the Securities and Exchange Commission.

                                      -20-

     If to the Company:                       iShip.com, Inc.                                               2515 - 140th Ave. NE                                               Suite E-110                                               Attn: President                                               Bellevue, WA 98005                                               Facsimile Number: 425/602-5025

     With a Copy To:                          Craig E. Sherman                                               Venture Law Group                                               4750 Carillon Point                                               Kirkland, WA 98033                                               Facsimile Number: 425/739-8750

     If to MBE:                               Mail Boxes Etc. USA, Inc.                                               6060 Cornerstone Court West                                               San Diego, CA 92121                                               Attn: Thomas K. Herskowitz                                               Facsimile Number: 619/546-7499

     (j) Headings. The headings of the several sections of this Agreement are          -------- intended for convenience of reference only and are not intended to be a part of or to affect the meaning or interpretation of this Agreement.

     (k) Counterparts. This Agreement may be executed in counterparts, each of          ------------ which shall be deemed an original and all of which together shall constitute one instrument.

     (l) Advice of Legal Counsel. Each party acknowledges and represents that,

Source: STAMPS.COM INC, 10-Q, 11/14/2000





         ----------------------- in executing this Agreement, it has had the opportunity to seek advice as to its legal rights from legal counsel and that the person signing on its behalf has read and understood all of the terms and provisions of this Agreement. This Agreement shall not be construed against any party by reason of the drafting or preparation thereof.

     (m) Arbitration.          -----------

               (i)   Every claim or dispute arising out of or relating to the          negotiation, performance or non-performance of this Agreement shall be          determined by arbitration in accordance with the Commercial Arbitration          Rules of the American Arbitration Association (AAA), or as otherwise          agreed by the parties. The place of arbitration shall be San Diego,          California.

               (ii)  In the event of any such claim or dispute, the parties          shall first attempt to resolve the matter through good faith, informal          negotiations, including non-binding mediation. In the event that the          parties are unable to resolve the dispute, either party hereto may          demand arbitration by written notice to the other party and to the AAA          in San Diego. The parties shall mutually agree on one arbitrator. If          the parties cannot so agree, the single arbitrator shall be selected by          the AAA. The costs of arbitration are to be shared equally by the          parties. Each party shall be responsible for its own costs and          attorneys' fees.

                                      -21-

               (iii) The arbitrator shall not have any power to alter, modify          or change any of the terms of this Agreement or to grant any remedy          which is either inconsistent with or prohibited by the terms of this          Agreement, or not available in a court of law. The arbitrator shall not          have the authority to commit errors of law or errors of legal          reasoning. In addition, the arbitrator shall have no power or authority          to award punitive, consequential or incidental damages.

               (iv)  The arbitrator shall, within thirty (30) days after the          matter has finally been submitted to him or her, render a written          decision making specific findings of fact and setting forth the reasons          for the decision which shall be consistent with the terms of this          Agreement. The parties intend that this agreement to arbitrate be          valid, binding, enforceable, and irrevocable. The terms of this Section          shall survive the termination or expiration of this Agreement.          Judgement on any award of the arbitrator shall be binding and may be          entered in any court having jurisdiction thereof.

                            [Signature page follows]

                                      -22-

         The parties have executed this Agreement as of the date first set forth above.

                                               COMPANY:                                         LICENSEE:

ISHIP.COM, INC.                                  MAILBOXES ETC. USA, INC.

/s/ Stephen M. Teglovic                          /s/ Charles Lynn Lowder ---------------------------------------          ---------------------------------------- (Signature)                                      (Signature)

Stephen M. Teglovic                              Charles Lynn Lowder ---------------------------------------          ---------------------------------------- (Print Name)                                     (Print Name)

CEO/Pres                                         Executive Vice President/General Counsel ---------------------------------------          ---------------------------------------- (Title)                                          (Title)

                   SIGNATURE PAGE TO MANIFEST SYSTEM LICENSE                            AND CO-BRANDING AGREEMENT

                                    EXHIBIT A

                                 FORM OF WARRANT

                                    EXHIBIT B

Source: STAMPS.COM INC, 10-Q, 11/14/2000





AUTHORIZED EQUIPMENT: ---------------------

     A PC reasonably adequate to access and use the Service for manifesting and shipping packages, with the following minimum specifications:

     .    a reasonably adequate scale and a label printer      .    An internet/network connection of at least 256k bits/sec      .    Processor: P5-233      .    Ports: 2 Com ports, 1 Parallel port      .    RM: 64 Megs      .    HDD: 1.2 GB      .    Video. 4 MB      .    OS: Win 98/OSR2      .    Browser: IE 5 SP1

                                    EXHIBIT C                                POTENTIAL CUSTOMERS

=======================================================================================================================                             TYPE                             DEFINITION ----------------------------------------------------------------------------------------------------------------------                                                                                        I                               A customer  physically present in the retail store-front                                                              or  remote  off-site  locations  of  MBE  Centers  for a                      In-Center Customer                      transaction in  which they do not  utilize an LMS or                                                              MBEX (as such terms are defined below). ----------------------------------------------------------------------------------------------------------------------                                                              A  customer  utilizing  a  self-service  lobby  manifest                             II                               system  in  a  MBE  Center  (LMS)  or  a  self-service                                                                                            ---                Remote Self-Service Customer                  MBE-branded   remote  manifest  system  (MBEX)  for  a                                                                                                        ----                                                              transaction. ----------------------------------------------------------------------------------------------------------------------                                                              A  customer  shipping  a  PLD-compliant  and  ramp-ready                          III A                               package* through a MBE Center that is manifested                   MBE Internet Customer                      through the MBE Sites. ----------------------------------------------------------------------------------------------------------------------                                                              A  customer  shipping  a  PLD-compliant  and  ramp-ready                          III B                               package through a MBE Center, which package is               Company Internet Customer                      manifested through the Company site. ----------------------------------------------------------------------------------------------------------------------                                                              A  customer  shipping  a  PLD-compliant  and  ramp-ready                                                              package   through  a  MBE  Center,   which   package  is                          III C (1)                           manifested  through  the  Internet  web  site of a third                  Third Party/MBE Customer                    party that is con-branded or otherwise  affiliated  with                                                              MBE. ----------------------------------------------------------------------------------------------------------------------                                                              A  customer  shipping  a  PLD-compliant  and  ramp-ready                                                              package   through  a  MBE  Center,   which   package  is                          III C (2)                           manifested  through  the  Internet  web  site of a third                Third Party/Company Customer                  party that is  co-branded or otherwise  affiliated  with                                                              the Company or the Service. ----------------------------------------------------------------------------------------------------------------------                                                              A  customer  shipping  a  PLD-compliant  and  ramp-ready                                                              package   through  a  MBE  Center,   which   package  is                          III C (3)                           manifested  through an  Internet  web site  operated  by                        eBay Customer                         eBay  Incorporated  or in connection  with an auction or                                                              sale conducted on such web site. ----------------------------------------------------------------------------------------------------------------------                             IV                               A  customer  that   utilizes  the  Service   and/or  the                      Company Customer                        Company's   products   and   services   other   than  in                                                              connection with a MBE Center. ----------------------------------------------------------------------------------------------------------------------

---------- *  PLD-compliant and ramp-ready shall mean compliance with the electronic    data requirements of each carrier supported by the Service.

                                    EXHIBIT D

                              SYSTEM SPECIFICATIONS

     The Service will enable MBE and MBE Centers to process packages for domestic shipment, weigh these packages, and create shipping labels. The Service will export data to a given MBE Center's Point-of-Sale (POS) station, and will support ARS/BIN packages, consignee billing, freight insurance, MBE proprietary or designated transit declared value, and customer address book access. All carrier rating information will be maintained by the Company from its central database management system (DBMS). MBE Centers will be allowed to create or

Source: STAMPS.COM INC, 10-Q, 11/14/2000





modify their own mark-ups for shipping, and, at its expense, the Company will update and/or adjust its pricing information for each MBE Center for each carrier to reflect such modifications. This Exhibit D may be modified from time to time by mutual agreement of the parties.

     The maximum amount of information downloaded from the Company's server to the counter manifest station will be 15 kilobytes or less per package processed.

     The following carriers and services will be supported:

UPS ---

Domestic: --------          Ground          Three Day Select          Second Day Air          Second Day Air AM,          Next Day Air Saver          Next Day Air          Next Day Air Early AM

International: -------------          Canada Standard          Worldwide Expedited            (including Canada/Mexico as set forth in the Specifications)          Worldwide Express            (including Canada/Mexico as set forth in the Specifications)

FedEx -----

Domestic: --------          Express Saver          2 Day          Standard Overnight          Priority Overnight          First Overnight

International: -------------          International Economy          International Priority

USPS ----

Domestic: --------          Parcel Post          Priority Mail          Express Mail          First Class

International: -------------          Parcel Post Air          Parcel Post Surface          Small Parcel Air          Small Parcel Surface          Express Mail          Global Priority Mail

--------------------------------------------------------------------------------

     The Service will include the following features, the more detailed functionality of which will be agreed to from time to time by the parties as the Service is developed:

1.       Table of Contents 2.       Table of Illustrations 3.       Introduction 3.1.     Purpose 3.2.     Scope 3.3.     Introduction 4.       Implementation 4.1      Organization 4.1.1.   Opening the Counter Manifest System 4.1.2.   Main Screen Organization 4.1.3.   Menu Structure 4.2.     General Functionality 4.2.1.   Keyboard & Mouse Behavior 4.2.2.   Sortable List Boxes

Source: STAMPS.COM INC, 10-Q, 11/14/2000





4.2.3.   Find Package/Transaction Dialogs 4.2.4.   Find Manifest Dialogs 4.2.5.   Find Dialog Search Behavior 4.3.     Process Menu 4.3.1.   Process Package 4.3.2.   Find Package 4.3.3.   Find Customer 4.3.4.   Customer Address Dialog 4.3.5.   Recipient Address Dialog

4.3.6.   Address Book Dialog 4.3.7.   City/State/Postal Verification Dialog 4.3.8.   Region Locator Dialog 4.3.9.   Transaction Complete Dialog 4.3.10.  Point of Sale (POS) Export Records 4.3.11.  Enter ARS/BIN Package 4.3.12.  Process Consignee Billed 4.3.13.  Freight Insurance 4.3.14.  Reprint Last label 4.3.15.  Reprint label 4.3.16.  Edit Transaction 4.3.17.  Void Transaction 4.3.18.  Recall Voided Transaction 4.4.     Estimate 4.4.1.   Price a Package 4.4.2.   Create Estimate 4.4.3.   Edit Estimate 4.4.4.   Delete Estimate 4.5.     Manifest 4.5.1.   Perform End of Day 4.5.2.   Track a Package 4.5.3.   View Manifests 4.5.4.   View Transaction 4.5.5.   Reprint Manifest 4.6.     Reports 4.6.1.   Manifest Reports 4.6.2.   Rate Reports 4.6.3.   Management Reports 4.7.     Administration 4.7.1.   Preferences 4.7.2.   Center Information 4.7.3.   Taxable Items 4.7.4.   Scales and Printers 4.7.5.   Modify Rates Dialog 4.7.6.   Modify Rates for Zone Based Services 4.7.7.   Modify Rates for Weight Based/Single Zone Services 4.7.8.   Modify FedEx Service Option Rates Dialog 4.7.9.   Modify UPS Service Option Rates Dialog 4.7.10.  Modify USPS Service Option Rates Dialog 4.7.11.  Copy Rates 4.7.12.  Alternate Insurance Rates 4.8.     About 4.8.1.   Rate Effective Dates 4.8.2.   Version 5.       Services and Services Options 5.1.     Services

5.1.1.   UPS 5.1.2.   FedEx 5.1.3.   USPS 5.2      Service Options 5.2.1.   Declared Value 5.2.2.   Delivery Notification 5.2.3.   Proof of Delivery 5.2.4.   COD 5.2.5.   Call Tag 5.2.6.   Earliest Delivery Time 5.2.7.   Deliver Without Signature 5.2.8.   Certified Mail

Source: STAMPS.COM INC, 10-Q, 11/14/2000
Example Output: Highlight the parts (if any) of this contract related to Cap On Liability that should be reviewed by a lawyer. Details: Does the contract include a cap on liability upon the breach of a party’s obligation? This includes time limitation for the counterparty to bring claims or maximum amount for recovery.

Example Input: Exhibit 10.3

[***] Certain information in this document has been excluded pursuant to Regulation S-K, Item 601(b)(10). Such excluded information is not material and would likely cause competitive harm to the registrant if publicly disclosed.

Execution Copy

LICENSE, DEVELOPMENT AND COMMERCIALIZATION AGREEMENT

DATED AS OF FEBRUARY 4, 2020

BY AND BETWEEN

XENCOR, INC.

AND

AIMMUNE THERAPEUTICS, INC.

Source: AIMMUNE THERAPEUTICS, INC., 8-K, 2/5/2020





TABLE OF CONTENTS Page ARTICLE 1 Definitions 1

ARTICLE 2 Licenses 13

ARTICLE 3 Development 16

ARTICLE 4 Regulatory 17

ARTICLE 5 Commercialization 19

ARTICLE 6 Supply 20

ARTICLE 7 Payments 21

ARTICLE 8 Payment; Records; Audits 24

ARTICLE 9 Intellectual Property Matters 26

ARTICLE 10 Representations, Warranties and Covenants; Compliance 31

ARTICLE 11 Indemnification 34

ARTICLE 12 Confidentiality 36

ARTICLE 13 Term and Termination 40

ARTICLE 14 Effects of Expiration Or Termination 40

ARTICLE 15 Miscellaneous 43

Schedule 1.10 Antibody 50

Schedule 1.79 Xencor General Patents 51

Schedule 1.81 Xencor Product Specific Patents 52

Schedule 2.7 Xencor Know-How, Regulatory Materials, and Regulatory Data 53

Schedule 6.1 Initial Product Supply 54

Schedule 10.2.6 Exceptions 55

Schedule 12.2 Initial Press Release 56

Source: AIMMUNE THERAPEUTICS, INC., 8-K, 2/5/2020





LICENSE, DEVELOPMENT AND COMMERCIALIZATION AGREEMENT

This License, Development and Commercialization Agreement (this Agreement), dated as of February 4, 2020 (the Effective Date), is made by and between Xencor, Inc. (Xencor), and Aimmune Therapeutics, Inc. (Aimmune). Xencor and Aimmune are sometimes referred to herein individually as a Party and collectively as the Parties.

RECITALS

WHEREAS, Xencor has developed the Antibody (as defined below);

WHEREAS, Aimmune is interested in further developing and commercializing the Antibody; and

WHEREAS, Xencor wishes to grant a license to Aimmune under certain intellectual property rights related to the Antibody to develop, manufacture and commercialize the Product (as defined below), and Aimmune wishes to take such license, in each case in accordance with the terms and conditions set forth below.

NO W THEREFORE, in consideration of the foregoing premises and the mutual promises, covenants and conditions contained in this Agreement, and for other good and valuable consideration, receipt of which is hereby acknowledged, the Parties agree as follows:

ARTICLE 1 DEFINITIONS

As used in this Agreement, the following initially capitalized terms shall have the meanings set forth in this ARTICLE 1 or as otherwise defined elsewhere in this Agreement:

1.1 Active Ingredient means any substance (whether chemical or biologic) or mixture of substances intended to be used in the manufacture of a drug (medicinal) product that, when used in the production of such drug, becomes a therapeutically active ingredient of the drug product, and which such substance or mixture of substances is intended to furnish pharmacological activity or other direct effect in the diagnosis, cure, mitigation, treatment or prevention of disease or to affect the structure or function of the body.

1.2 Affiliate means with respect to any person, any other person directly or indirectly controlling, controlled by, or under common control with such person; provided, that, for purposes of this definition, control (including, with correlative meanings, the terms controlled by and under common control with), as used with respect to any person, shall mean (i) the possession, directly or indirectly, of the power to direct or cause the direction of the management and policies of such person, whether through the ownership of voting securities or by contract or otherwise, or (ii) the ownership, directly or indirectly, of fifty percent (50%) or more of the voting securities of such person. For purposes of this Section 1.2, person means mean an individual, corporation, partnership, limited partnership, limited liability company, limited liability partnership, syndicate, person (including a person as defined in Section 13(d)(3) of the Securities Exchange Act of 1934, as amended, together with the rules and regulations promulgated thereunder), trust, association, entity or government or political subdivision, agency or instrumentality of a government. 1

Source: AIMMUNE THERAPEUTICS, INC., 8-K, 2/5/2020





1.3 Aimmune Agreement Entities means Aimmune's Affiliates and Sublicensees (excluding distributors).

1.4 Aimmune Common Stock means Aimmune's common stock, par value $0.0001 per share.

1.5 Aimmune Field means the field of [***].

1.6 Aimmune Invention means an Invention that is Invented, solely or jointly with a Third Party, by or on behalf of Aimmune or its Affiliates.

1.7 Aimmune Know-How means any and all Know-How, whether or not patented or patentable, that is Controlled by Aimmune or its Affiliates as of the Effective Date or at any time during the Term that is necessary or reasonably useful in connection with the Development, Manufacture, Commercialization or other use of the Antibody or Product.

1.8 Aimmune Patent means any Patent that (i) (a) is Controlled by Aimmune (or its Affiliates) as of the Effective Date or comes under the Control of Aimmune (or its Affiliates) during the Term (other than as a result of the licenses granted by Xencor to Aimmune under this Agreement) and (b) that would be infringed by the Development, Manufacture, Commercialization or use of the Antibody or Product or that claims or Covers Aimmune Know-How, or (ii) is an Aimmune Collaboration Patent.

1.9 Aimmune Technology means Aimmune Know-How and Aimmune Patents.

1.10 Antibody means Xencor's humanized antibody known as XmAb7195 having the sequence listed in Schedule 1.10.

1.11 Anti-Corruption Laws means the U.S. Foreign Corrupt Practices Act, as amended, the UK Bribery Act 2010, as amended, as well as Applicable Law related to the prevention of fraud, racketeering, money laundering or terrorism.

1.12 Applicable Law means any applicable United States federal, state or local or foreign or multinational law, statute, standard, ordinance, code, rule, regulation, resolution or promulgation, or any order, writ, judgment, injunction, decree, stipulation, ruling, determination or award entered by or with any Governmental Authority, or any license, franchise, permit or similar right granted under any of the foregoing, or any similar provision having the force or effect of law. For the avoidance of doubt, any specific references to any Applicable Law or any portion thereof, shall be deemed to include all then- current amendments thereto or any replacement or successor law, statute, standard, ordinance, code, rule, regulation, resolution, order, writ, judgment, injunction, decree, stipulation, ruling, or determination thereto. 2

Source: AIMMUNE THERAPEUTICS, INC., 8-K, 2/5/2020





1.13 Baseline Quarter Net Sales means, on a country-by-country and Product-by-Product basis, the average cumulative Net Sales of such Product in such country during the [***] Calendar Quarters that [***]precede the Calendar Quarter during which a Generic Product with respect to such Product is first commercially sold in such country. For example, if a Generic Product with respect to a given Product is commercially sold in the U.S. for the first time on [***], then the Baseline Quarter Net Sales with respect to such Product and U.S. are the cumulative Net Sales of such Product in the U.S. during the [***] Calendar Quarters of [***] divided by [***].

1.14 Business Day means a day other than a Saturday, Sunday, or bank or other public holiday in California.

1.15 Calendar Quarter means each three (3) month period commencing January 1, April 1, July 1 or October 1 of any year; provided, however, that (a) the first Calendar Quarter of the Term shall extend from the Effective Date to the end of the first full Calendar Quarter thereafter, and (b) the last Calendar Quarter of the Term shall end upon the expiration or termination of this Agreement.

1.16 Calendar Year means the period beginning on the 1st of January and ending on the 31st of December of the same year; provided, however, that (a) the first Calendar Year of the Term shall commence on the Effective Date and end on December 31 of the same year and (b) the last Calendar Year of the Term shall commence on January 1 of the Calendar Year in which this Agreement terminates or expires and end on the date of termination or expiration of this Agreement.

1.17 Clinical Trial means a clinical trial, including any a Phase I Clinical Trial, Phase II Clinical Trial, Phase III Clinical Trial, or Phase IV Clinical Trial, as the case may be, and as any such trial is defined by an applicable Regulatory Authority.

1.18 Co-pay Program means a program to support patient access to a Product whereby the Product manufacturer makes payments to a Third Party equal to all or part of the difference between the price of Product prescribed to a patient and the amount such patient pays for such Product through such patient's insurance plan.

1.19 Combination Product means any Product containing an Active Ingredient that is not an Antibody. Such Combination Product shall be either (a) priced and sold in a single package containing such multiple products or (b) packaged separately but sold together for a single price.

1.20 Commercialize means, with respect to the Product, to promote, market, distribute, sell (and offer for sale or contract to sell), import, export, or otherwise commercially exploit or provide product support for the Product and to conduct activities, other than Development or Manufacturing, in preparation for conducting the foregoing activities, including activities to produce commercialization support data and to secure and maintain market access and reimbursement. Commercializing and Commercialization shall have correlative meanings. For the avoidance of doubt, Commercialization does not include Development and Manufacturing. 3

Source: AIMMUNE THERAPEUTICS, INC., 8-K, 2/5/2020





1.21 Commercially Reasonable Efforts means, with respect to the efforts to be expended by a Party with respect to any objective (e.g., Development Activities and Commercialization hereunder), the level of efforts consistent with the efforts and resources [***] of similar market potential, at a similar stage in development or product lifecycle, taking into account the stage of development or product lifecycle of other of [***] product candidates, safety and efficacy, product profile, cost of goods, the competitiveness of the marketplace, such company's patent position with respect to such product (including such company's ability to obtain or enforce, or have obtained or enforced, such patent rights), the Third Party patent landscape relevant to the product, the regulatory structure involved, the likelihood of regulatory approval, the likelihood and extent of anticipated or actual profitability of the applicable product, and other technical, legal, scientific and medical considerations. Without limiting the foregoing, Commercially Reasonable Efforts requires, with respect to such obligations, that a Party: (i) promptly assign responsibility for such obligation to specific employee(s) who are held accountable for progress and monitor such progress on an on-going basis, (ii) set objectives for carrying out such obligations, and (iii) allocate resources designed to advance progress with respect to such objectives.

1.22 Control or Controlled by means, with respect to any Know-How, Invention, Patent, technology, copyright, trademark or other intellectual property right, possession by a Party or its Affiliates (whether by ownership, license grant or other means) of the legal right to grant the right to access or use, or to grant a license or a sublicense to, such Know-How, Invention, Patent, technology, copyright, trademark or other intellectual property right as provided for herein without violating the proprietary rights of any Third Party or any terms of any agreement or other arrangement between such Party (or any of its Affiliates) and any Third Party.

1.23 Cover or Covering means, with respect to a particular subject matter at issue and a relevant Patent, that the manufacture, use, sale, offer for sale or importation of such subject matter would, but for the existence of this Agreement, infringe one or more claims in such Patents (or in the case of a Patent application, would infringe if such application were to issue).

1.24 Designated Officer means, with respect to Xencor, the Chief Executive Officer of Xencor (or its designee), and, with respect to Aimmune, the Chief Executive Officer of Aimmune (or its designee).

1.25 Develop means to research, develop, analyze, test and conduct preclinical trials, Clinical Trials (including, for the avoidance of doubt, Phase IV Clinical Trials and any preclinical/clinical/CMC commitments following Regulatory Approval) and all other regulatory trials, for the Product, as well as any and all activities pertaining to manufacturing development, formulation development, medical affairs and lifecycle management, including new indications, new formulations and all other activities, including regulatory activities, related to securing and maintaining Regulatory Approval for the Product, or otherwise characterizing or understanding the properties and uses of the Antibody or the Product. Developing and Development shall have correlative meanings. 4

Source: AIMMUNE THERAPEUTICS, INC., 8-K, 2/5/2020





1.26 Development Activities means those Development activities undertaken by or on behalf of Aimmune with respect to the Product.

1.27 Dollar or $ means the legal tender of the United States of America.

1.28 E.U. Major Countries means the United Kingdom, France, Germany, Italy, and Spain.

1.29 FDA means the United States Food and Drug Administration and any successor Regulatory Authority having substantially the same function.

1.30 FD&C Act means the U.S. Federal Food, Drug and Cosmetic Act, as amended, and the regulations promulgated thereunder.

1.31 First Commercial Sale means, with respect to a Product in any country, the first shipment of such Product to a Third Party in such country for end use or consumption of such Product in such country after Regulatory Approval of such Product in such country or, if earlier, the invoicing of a Third Party for such shipment.

1.32 Force Majeure means any circumstances whatsoever which are not within the reasonable control of the Party affected thereby, potentially including an act of God, war, act of terrorism, insurrection, riot, strike or labor dispute, shortage of materials, fire, explosion, flood, earthquake, government requisition or allocation, breakdown of or damage to plant, equipment or facilities, interruption or delay in transportation, fuel supplies or electrical power, embargo, boycott, order or act of civil or military authority.

1.33 Generic Product means, with respect to a Product and on a country-by-country basis, a product that (a) is marketed for sale in such country [***], (b) contains or comprises an antibody with the [***], (c) is approved [***], and (d) such product, as and to the extent required, is approved through an abbreviated process based in reliance, at least in part, on the safety and efficacy data generated for the prior Regulatory Approval of such Product by Aimmune or an Aimmune Agreement Entity in such country (similar, with respect to the United States, to an Abbreviated New Drug Applications under Section 505(j) of the FD&C Act (21 USC 355(j))) or is approved as a Biosimilar Biologic Product under Title VII, Subtitle A Biologics Price Competition and Innovation Act of 2009, Section 42 U.S.C. 262, Section 351 of the PHSA, or, outside the United States, in accordance with European Directive 2001/83/EC on the Community Code for medicinal products (Article 10(4) and Section 4, Part II of Annex I) and European Regulation EEC/2309/93 establishing the community procedures for the authorization and evaluation of medicinal products, each as amended, and together with all associated guidance, and any counterparts thereof or equivalent process inside or outside of the United States or EU to the foregoing.

1.34 Good Clinical Practices or GCP means all applicable Good Clinical Practice standards for the design, conduct, performance, monitoring, auditing, recording, analyses and reporting of clinical trials, including, as applicable, (i) as set forth in the International Conference on Harmonisation of Technical Requirements for Registration of 5

Source: AIMMUNE THERAPEUTICS, INC., 8-K, 2/5/2020





Pharmaceuticals for Human Use (ICH) Harmonised Tripartite Guideline for Good Clinical Practice (CPMP/ICH/135/95) and any other guidelines for good clinical practice for trials on medicinal products, (ii) the Declaration of Helsinki (1964) as last amended at the 64t h World Medical Association in October 2013 and any further amendments or clarifications thereto, (iii) U.S. Code of Federal Regulations Title 21, Parts 50 (Protection of Human Subjects), 56 (Institutional Review Boards) and 312 (Investigational New Drug Application), as may be amended from time to time, and (iv) the equivalent Applicable Law in any relevant country, each as may be amended and applicable from time to time and in each case, that provide for, among other things, assurance that the clinical data and reported results are credible and accurate and protect the rights, integrity, and confidentiality of trial subjects.

1.35 Good Laboratory Practices or GLP means all applicable Good Laboratory Practice standards, including, as applicable, (i) as set forth in the then-current good laboratory practice standards promulgated or endorsed by the FDA as defined in 21 C.F.R. Part 58, and (ii) the equivalent Applicable Law in any relevant country, each as may be amended and applicable from time to time.

1.36 Good Manufacturing Practices or GMP means all applicable Good Manufacturing Practices including, as applicable, (i) the principles detailed in the U.S. Current Good Manufacturing Practices, 21 C.F.R. Sections 210, 211, 601 and 610, (ii) the principles detailed in the ICH Q7 guidelines, and (iii) the equivalent Applicable Law in any relevant country, each as may be amended and applicable from time to time.

1.37 Government Official means: (i) any official, officer, employee, representative, or anyone acting in an official capacity on behalf of: (a) any government or any department or agency thereof; (b) any public international organization (such as the United Nations, the International Monetary Fund, the International Red Cross, or the World Health Organization), or any department, agency, or institution thereof; or (c) any government-owned or controlled company, institution, or other entity, including a government-owned hospital or university; (ii) any political party or party official; and (iii) any candidate for political office.

1.38 Governmental Authority means any United States federal, state or local, or any foreign, government or political subdivision thereof, or any multinational organization or authority, or any authority, agency or commission entitled to exercise any administrative, executive, judicial, legislative, police, regulatory or taxing authority or power, any court or tribunal (or any department, bureau or division thereof), or any governmental arbitrator or arbitral body. For clarity, any Regulatory Authority shall be a Governmental Authority.

1.39 IFRS means international financial reporting standards, or with respect to the U.S., as appropriate, generally accepted accounting principles in the U.S. (GAAP), in each case, consistently applied.

1.40 IND means an investigational new drug application, clinical trial authorization or similar application or submission for approval to conduct human clinical investigations filed with or submitted to a Regulatory Authority in conformance with the requirements of such Regulatory Authority. 6

Source: AIMMUNE THERAPEUTICS, INC., 8-K, 2/5/2020





1.41 Invented means the acts of (an) inventor(s), as determined in accordance with Applicable Law relating to inventorship set forth in the patent laws of the United States (Title 35, United States Code), in first conceiving an Invention.

1.42 Invention means any discovery or invention, whether or not patentable, conceived or otherwise made by either Party, or by both Parties, in exercising its rights or performing its obligations under this Agreement.

1.43 Joint Invention means an Invention that is Invented jointly by an employee of, or Person under an obligation of assignment to, each of Xencor and Aimmune or their respective Affiliates.

1.44 Know-How means all technical, scientific, regulatory and other information, results, knowledge, techniques and data, in whatever form and whether or not confidential, patented or patentable, including Inventions, invention disclosures, discoveries, plans, processes, practices, methods, knowledge, trade secrets, know-how, instructions, skill, experience, ideas, concepts, data (including biological, chemical, pharmacological, toxicological, pharmaceutical, physical and analytical, safety, quality control, and preclinical and clinical data), formulae, formulations, compositions, specifications, marketing, pricing, distribution, cost, sales and manufacturing data or descriptions. Know-How does not include any Patent claiming any of the foregoing.

1.45 Licensed Field means the diagnosis, treatment or prevention of human diseases and conditions.

1.46 Major Territory means the [***].

1.47 Manufacture or Manufacturing or Manufactured means, with respect to the Antibody and Product, the receipt, handling and storage of Active Ingredients, drug substance or drug product, medical devices and other materials, the manufacturing, processing, Packaging and Labeling, holding (including storage), quality assurance and quality control testing (including release) of the Antibody and Product (other than quality assurance and quality control related to development of the manufacturing process, which activities shall be considered Development Activities) and shipping of the Antibody and Product.

1.48 Marketing Authorization Application or MAA means an application to the appropriate Regulatory Authority for approval to sell the Product (but excluding Pricing Approval) in any particular country or regulatory jurisdiction, including a Biologics License Application as described in 21 C.F.R. §601.2, as amended.

1.49 Medical Science Liaison means an individual who is employed by or on behalf of Aimmune or its Affiliates and who provides educational services and other educational efforts directed towards the medical and/or scientific community. 7

Source: AIMMUNE THERAPEUTICS, INC., 8-K, 2/5/2020





1.50 Net Sales means, with respect to a Product, the gross amount invoiced for sales of a Product by a Selling Party to Third Parties for end use, less the following deductions from such gross amounts to the extent attributable to such Product and to the extent actually incurred, allowed, accrued or specifically allocated:

(a) credits or allowances actually granted for damaged Product, returns or rejections of Product, price adjustments and billing errors;

(b) governmental and other rebates (or equivalents thereof) granted to managed health care organizations, pharmacy benefit managers (or equivalents thereof), federal, state, provincial, local and other governments, their agencies and purchasers and reimbursers or to trade customers;

(c) normal and customary trade, cash and quantity discounts, allowances and credits actually allowed or paid;

(d) payments made as part of a Co-pay Program for a Product; and

(e) sales taxes, VAT taxes and other taxes directly linked to the sales of Product;

all as determined in accordance with IFRS on a basis consistent with the Selling Party's annual audited financial statements.

Net Sales shall not include sales to Affiliates, Sublicensees or contractors engaged by Aimmune to Develop, Manufacture, or Commercialize the Product, solely to the extent that such Affiliate, Sublicensees or contractor purchasing the Product resells such Product to a Third Party. However, subsequent sales of Product by such Aimmune Affiliates, Sublicensees or contractors to a Third Party shall be included in the Net Sales when sold in the market for end-user use.

Further, any use, supply or provision of Product by Aimmune or Aimmune Agreement Entities at no cost or at a de minimis cost not to exceed [***] percent ([***]%) of the fully burdened cost thereof (i) in connection with patient assistance programs, (ii) for charitable or promotional purposes, (iii) for preclinical, clinical, regulatory or governmental purposes, or compassionate use or other similar programs, or (iv) for tests or studies reasonably necessary to comply with any Applicable Law, regulation or request by a Regulatory Authority shall not be included in Net Sales of Product. Sale or transfer of Products among the Aimmune Agreement Entities shall not result in any Net Sales, in which case Net Sales shall be based only on any subsequent sales or dispositions to a Third Party; provided that the Aimmune Agreement Entity is not an end user.

In no event shall any particular amount identified above be deducted more than once in calculating Net Sales (i.e., no double counting of reductions).

In the event that Product is sold as part of a financial bundle with other products or included in financial package deals to customers and in such case, the price of Product relevant for the calculation of Net Sales will be the average invoiced sales price of Product in the preceding Calendar Quarter sold separately less the average discount of all products sold as part of such bundle or package. 8

Source: AIMMUNE THERAPEUTICS, INC., 8-K, 2/5/2020





For Net Sales of a Combination Product, the Net Sales applicable to such Combination Product in a country will be determined by multiplying the total Net Sales of such combined product by the fraction A/(A+B), where A is the actual price of the Product that is included in such Combination Product in the same dosage amount or quantities in the applicable country during the applicable quarter if sold separately, and B is the sum of the actual prices of all other products with which such Product is combined in such Combination Product, in the same dosage amount or quantities in the applicable country during the applicable quarter if sold separately. If A or B cannot be determined because values for such Product or such other products with which such Product is combined are not available separately in a particular country, then the Parties shall discuss an appropriate allocation for the fair market value of such Product and such other products with which such Product is combined to mutually determine Net Sales for the relevant transactions based on an equitable method of determining the same that takes into account, in the applicable territory, the relative contribution of each Active Ingredient, variations in dosage formulation and relative value to the end user of each Active Ingredient.

1.51 Patents means any and all (i) issued patents, (ii) pending patent applications, including all provisional applications, substitutions, continuations, continuations-in-part, divisionals and renewals, and all patents granted thereon, (iii) patents-of-addition, reissues, and reexaminations, including patent term adjustments, Patent Term Extensions, supplementary protection certificates or the equivalent thereof, (iv) inventor's certificates, (v) other forms of government-issued rights substantially similar to any of the foregoing, and (vi) United States and foreign counterparts of any of the foregoing.

1.52 Patent Term Extension means any term extensions, supplementary protection certificates and equivalents thereof offering Patent protection beyond the initial term with respect to any issued Patents.

1.53 Person means any individual, firm, corporation, partnership, limited liability company, trust, business trust, joint venture, Governmental Authority, association or other entity.

1.54 Phase I Clinical Trial means a study in humans which provides for the first introduction into humans of a product, conducted in normal volunteers or patients to generate information on product safety, tolerability, pharmacological activity or pharmacokinetics, as more fully defined in 21 CFR §312.21(a) or comparable regulations in any country or jurisdiction outside the U.S., and any amended or successor regulations.

1.55 Phase II Clinical Trial means a study in humans for which a primary endpoint is a preliminary determination of efficacy in patients with the disease being studied, as more fully defined in 21 CFR §312.21(b) or comparable regulations in any country or jurisdiction outside the U.S., and any amended or successor regulations. Phase II Clinical Trial shall include in all cases any phase I/II clinical trial.

1.56 Phase III Clinical Trial means a controlled study in humans that is performed after preliminary evidence suggesting effectiveness of a product has been obtained, and is intended to demonstrate or confirm the therapeutic benefit of such product and to gather the additional information about effectiveness and safety that is needed to evaluate the overall 9

Source: AIMMUNE THERAPEUTICS, INC., 8-K, 2/5/2020





benefit-risk relationship of such product and to provide support for filing for Regulatory Approval and for such product's labeling and summary of product characteristics, as more fully defined in 21 CFR §312.21(c) or comparable regulations in any country or jurisdiction outside the U.S., and any amended or successor regulations. For the sake of clarity, with respect to what is commonly called a phase II/III study, the Phase III Clinical Trial definition is met upon [***], as further defined in Federal Regulation 21 C.F.R. §312.21(c) and its foreign equivalents.

1.57 Phase IV Clinical Trial means a clinical study in humans initiated in a country after receipt of Regulatory Approval for a biopharmaceutical product in such country, usually within or in support of the approved product labeling.

1.58 Pre-Marketing means all sales and marketing activities undertaken prior to and in preparation for the launch of the Product. Pre-Marketing shall include market research, key opinion leader development, advisory boards, medical education, disease-related public relations, health care economic studies, sales force training and other pre-launch activities prior to the First Commercial Sale of the Product in a given country or other regulatory jurisdiction.

1.59 Pricing Approval means, with respect to any country where a Governmental Authority authorizes reimbursement or access, or approves or determines pricing, for biopharmaceutical products, receipt (or, if required to make such authorization, approval of determination effective publication) of such reimbursement or access authorization or pricing approval or determination (as the case may be).

1.60 Product means any biopharmaceutical product containing or comprising (i) the Antibody; and (ii) any Variant of the Antibody that: (a) [***] and (b) [***]; provided, that a Product does not include any Active Ingredient that is [***], other than the Antibody as described in the foregoing subsections (i) and (ii). For clarity, Product excludes: (1) [***]; (2) [***]; (3) [***]; (4) [***]; (5) [***]; or (6) [***].

1.61 Product Approval means the approval by a Governmental Authority necessary for the marketing and sale of the Product in a given country or regulatory jurisdiction, which may include the approval of an MAA (but shall not include any Pricing Approvals).

1.62 Product Complaint means any written, verbal or electronic expression of dissatisfaction regarding any Product sold by or on behalf of a Selling Party, including reports of actual or suspected product tampering, contamination, mislabeling or inclusion of improper ingredients.

1.63 Promotional Materials means all written, printed, video or graphic advertising, promotional, educational and communication materials (other than the Product labels and package inserts) for marketing, advertising and promoting of the Product, for use (i) by a Sales Representative or a Medical Science Liaison or (ii) in advertisements, web sites or direct mail pieces. 10

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1.64 Regulatory Approval means, with respect to any biopharmaceutical product in any regulatory jurisdiction for a given indication, approval from the applicable Regulatory Authority permitting the manufacture, sale, distribution or Commercialization of such biopharmaceutical product in such regulatory jurisdiction for such indication in accordance with Applicable Law, including any Pricing Approvals.

1.65 Regulatory Authority means, in a particular country or regulatory jurisdiction, any applicable Governmental Authority involved in granting Regulatory Approval and/or, to the extent required in such country or regulatory jurisdiction, governmental Pricing Approval of a biopharmaceutical product in such country or regulatory jurisdiction.

1.66 Regulatory Data means any and all research data, pharmacology data, chemistry, manufacturing and control data, preclinical data, clinical data and all other documentation submitted, or required to be submitted, to Regulatory Authorities in association with regulatory filings for the Product (including any applicable Drug Master Files, Chemistry, Manufacturing and Control (CMC) data, or similar documentation).

1.67 Regulatory Materials means regulatory applications, submissions, notifications, communications, correspondence, meeting minutes, registrations, Regulatory Approvals and/or other filings made to, received from or otherwise conducted with a Regulatory Authority that are necessary in order to Develop, Manufacture, obtain marketing authorization, market, sell, distribute or otherwise Commercialize the Product in a particular country or regulatory jurisdiction. Regulatory Materials include INDs, MAAs, presentations, responses, and applications for Product Approvals.

1.68 Royalty Term means, with respect to a Product on a country-by-country basis, the period of time beginning on the First Commercial Sale of such Product in such country and ending the later of (i) the expiration of the last to expire Valid Claim Covering the Antibody or Product in such country, or (ii) [***] ([***]) years from the First Commercial Sale of such Product in such country. Notwithstanding subsections (i) and (ii) above, the Royalty Term for a Product in a country shall not [***].

1.69 Sales Representative means an individual who is employed by a Party and who performs details and other promotional efforts with respect to the Product.

1.70 Selling Party means Aimmune or another Aimmune Agreement Entity.

1.71 Third Party means any Person other than Xencor, Aimmune or their respective Affiliates.

1.72 United States or U.S. means the United States of America and its possessions and territories.

1.73 Upstream Agreement means that certain [***] Agreement by and between Xencor and the [***] dated [***]. 11

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1.74 Valid Claim means, with respect to a particular country, (i) a claim of [***] that (a) has not been specifically held permanently revoked, unenforceable or invalid by a decision of a court or other Governmental Authority of competent jurisdiction, which decision is unappealed or unappealable within the time allowed for appeal, and (b) has not been cancelled, withdrawn, abandoned, disclaimed or admitted to be invalid or unenforceable through reissue, disclaimer or otherwise, or (ii) a bona fide claim of a pending patent application [***] that has not been (a) cancelled, withdrawn or abandoned without being re-filed in another application in the applicable jurisdiction, or (b) finally rejected by an administrative agency action from which no appeal can be taken or that has not been appealed within the time allowed for appeal.

1.75 Variant means [***].

1.76 Xencor [***] means a [***].

1.77 Xencor Invention means an Invention that is Invented solely or jointly with a Third Party, by or on behalf of Xencor or its Affiliates.

1.78 Xencor Know-How means any and all Know-How, whether or not patented or patentable, (i) to the extent Controlled by Xencor or its Affiliates as of the Effective Date, or, if transferred to Aimmune thereafter during the Term of this Agreement, and that is necessary in connection with the Development, Manufacture, Commercialization or other use of the Antibody or Product or (ii) constituting a Xencor Invention. Notwithstanding the foregoing, in all cases, Xencor Know-How does not include (a) [***], (b) [***], (c) [***], (d) [***], (e) [***], or (f) [***].

1.79 Xencor General Patent means (i) the Patents identified on Schedule 1.79, including patents issuing from any patent application set forth on Schedule 1.79, (ii) with respect to such Patents set forth on Schedule 1.79, all provisional applications, substitutions, continuations, continuations-in-part, divisionals, renewals, patents-of-addition, reissues, reexaminations and extensions, (iii) all international and domestic counterparts of any of the foregoing, and (iv) any other Patents Controlled by Xencor that claim inventions necessary for the Development, Manufacture, Commercialization or other use of the Antibody or Product as the Antibody and Product exist as of the Effective Date.

1.80 Xencor Patent means Xencor General Patents and Xencor Product Specific Patents.

1.81 Xencor Product Specific Patent means (i) the Patents identified on Schedule 1.81, including patents issuing from any patent application set forth on Schedule 1.81, (ii) with respect to all Patents set forth on Schedule 1.81, all provisional applications, substitutions, continuations, continuations- in-part, divisionals, renewals, patents-of-addition, reissues, reexaminations and extensions, (iii) any [***], and (iv) all international and domestic counterparts of any of the foregoing.

1.82 Xencor Technology means Xencor Know-How and Xencor Patents. 12

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

ARTICLE 2 LICENSES

2.1 Grant to Aimmune. Subject to the terms and conditions of this Agreement, Xencor hereby grants to Aimmune during the Term an exclusive, worldwide, payment-bearing license under and with respect to Xencor Patents and Xencor's interest in Joint Collaboration Patents, and a non-exclusive, payment bearing license under and with respect to Xencor Know-How, in each case, with the right to sublicense solely in accordance with Section 2.3.2, solely to Develop, Manufacture and Commercialize the Product in and for the Licensed Field; provided that notwithstanding the foregoing, Xencor shall retain the right under and with respect to Xencor Patents and Xencor's interest in Joint Collaboration Patents to the extent necessary to perform its obligations under this Agreement.

2.2 Additional Licensing Provisions.

2.2.1 Negative Covenant. Aimmune covenants that it will not use or practice any of Xencor's rights to and under the Xencor Patents, Xencor Know-How or other intellectual property rights licensed (or sublicensed, as applicable) to it under this ARTICLE 2, except for the purposes expressly permitted in the applicable license grant. Aimmune covenants that it will not research or develop (including Develop) the Antibody itself, including not developing any modification, variant, fragment, progeny or derivatives of such Antibody, in each case, in a way that would produce a molecule that is neither the Antibody nor a molecule that falls within the definition of a Product. 13

Term Section Agreement Preamble Bankrupt Party 14.7 Breaching Party 13.2 [***] 1.73 Claim 11.1 CMC 1.66 Commercialization Data 5.5 Confidential Information 12.1.1 Controlling Party 9.4.1(a) Court 15.13.3 Dispute 15.1 Effective Date Preamble ICH 1.34

Term Section Indemnified Party 11.3.1 Indemnifying Party 11.3.1 Infringement Claim 9.4.1 Joint Collaboration Patents 9.1.1 Aimmune Preamble Aimmune Collaboration Patents 9.1.1

Xencor Preamble Xencor Collaboration Patents 9.1.1 Losses 11.1 Packaging and Labeling 6.2

Term Section Party or Parties Preamble Product Trade Dress 5.4.1 Product Trademark 5.4.1 Recovery 9.4.2(c)(iv) Shares 7.1 Stock Issuance Agreement 7.1 Sublicensee 2.3.2 Term 13.1 Third Party Patent 7.3.2(b) Upfront Payment 7.1 VAT 8.3.3

Source: AIMMUNE THERAPEUTICS, INC., 8-K, 2/5/2020





2.2.2 No Implied Licenses; Retained Rights. Except as explicitly set forth in this Agreement, Xencor does not grant any license, express or implied, under its intellectual property rights to Aimmune, whether by implication, estoppel or otherwise.

2.2.3 Upstream Agreement. Aimmune acknowledges, understands and agrees that (i) the Xencor Know-How licensed to Aimmune pursuant to Section 2.1 includes certain Know-How licensed to Xencor pursuant to the Upstream Agreement, (ii) the license to such Xencor Know-How constitutes a sublicense under the Upstream Agreement, (iii) Aimmune's rights to such Xencor Know-How are subject and subordinate to the terms and conditions of the Upstream Agreement, (iv) Aimmune will comply with the Upstream Agreement, including undertaking such activities as Xencor reasonably requests to so comply, (v) [***] is responsible for any and all payments due under the Upstream Agreement (following the Effective Date) in connection with Developing, Manufacturing and Commercializing the Product by or on behalf of Aimmune (including by or on behalf of its Affiliates or sublicensees), and (vi) Aimmune received a copy of the Upstream Agreement prior to the Effective Date.

2.3 Performance by Affiliates and Sublicensees.

2.3.1 Performance by Affiliates. The Parties recognize that each may perform some or all of its obligations under this Agreement through Affiliates; provided, however, that each Party shall remain responsible for and be guarantor of the performance by its Affiliates and shall cause its Affiliates to comply with the provisions of this Agreement in connection with such performance. Each Party hereby expressly waives any requirement that the other Party exhausts any right, power or remedy, or proceed against an Affiliate, for any obligation or performance hereunder prior to proceeding directly against such Party. Wherever in this Agreement the Parties delegate responsibility to Affiliates, the Parties agree that such entities may not make decisions inconsistent with this Agreement, amend the terms of this Agreement or act contrary to its terms in any way.

2.3.2 Sublicensees. Aimmune shall [***] the right (but not the obligation) to sublicense the rights granted to it under Section 2.1 to its Affiliates or Third Parties (each, a Sublicensee); provided, however, that Aimmune shall remain responsible for the performance by any of its direct and indirect Sublicensees and shall cause its direct and indirect Sublicensees to comply with the applicable provisions of this Agreement in connection with such performance. Without limiting the foregoing, Aimmune shall cause its direct and indirect Sublicensees to accept in writing all applicable terms and conditions of this Agreement, including the reporting, audit, inspection and confidentiality provisions hereunder and Sections 2.2.1 and 2.4. For the avoidance of doubt, (a) Aimmune will remain directly responsible for all amounts owed to Xencor under this Agreement, and (b) Aimmune shall cause each Sublicensee (including each tier of Sublicensee) to be subject to the negative and restrictive covenants set forth in Sections 2.2.1 and 2.4, respectively. Aimmune hereby expressly waives any requirement that Xencor exhaust any right, power or remedy, or proceed against a subcontractor, for any obligation or performance hereunder prior to proceeding directly against Aimmune.

2.4 Restrictive Covenants. Aimmune hereby covenants and agrees that it shall not (and shall cause the other Aimmune Agreement Entities not to), either directly or indirectly, 14

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Develop, Manufacture, or Commercialize the Product for use outside the Licensed Field. Furthermore, Xencor hereby covenants and agrees that it shall not (and shall cause its Affiliates not to), either directly or through granting a license or other right to, or otherwise facilitating, a Third Party to (a) Develop, Manufacture or Commercialize the Antibody or the Product during the Term, (b) commence any [***] of any [***] that is not the Antibody or a Product and that [***] for use in the Licensed Field, prior to the [***] ([***]t h) anniversary of the Effective Date, or (c) Develop, Manufacture or Commercialize any [***] that is not the Antibody or a Product and that [***] for use in the Aimmune Field during the Term. It is the desire and intent of the Parties that the restrictive covenants contained in this Section 2.4 be enforced to the fullest extent permissible under Applicable Laws and public policies applied in each jurisdiction in which enforcement is sought. Xencor and Aimmune believe that the restrictive covenants in this Section 2.4 are valid and enforceable. However, if any restrictive covenant should for any reason become or be declared by a competent court or competition authority to be invalid or unenforceable in any jurisdiction, such restrictive covenant shall be deemed to have been amended to the extent necessary in order that such provision be valid and enforceable, such amendment shall apply only with respect to the operation of such provision of this Section 2.4 in the particular jurisdiction in which such declaration is made. Further, both Parties agree that [***] of this Agreement.

2.5 Progress Updates. Aimmune shall keep Xencor informed as to its progress and activities relating to the Development, Manufacture and Commercialization of the Product on [***] basis (i.e., every [***] ([***]) months), including by providing updates on the status of studies necessary for obtaining Regulatory Approval with respect to the Product, regulatory matters and meetings with Regulatory Authorities with respect to the Product, and Commercialization activities commencing no later than [***] ([***]) year prior to the date on which Aimmune estimates the First Commercial Sale of Product will occur. Additionally, to the extent applicable, such updates shall include summaries of Aimmune's Development plans for the Product for the ensuing [***] ([***]) year time period. Any information disclosed under this Section 2.5 shall be treated as Confidential Information as defined in Section 12.1.

2.6 Upstream Agreement. During the Term, neither Xencor nor any of its Affiliates shall (a) encumber any GPEx Technology, as defined in the Upstream Agreement, to the extent included within the Xencor Technology, or commit any act or permit the occurrence of any omission that would cause the breach or termination of the Upstream Agreement, or otherwise knowingly take actions or permit omissions that would adversely affect the rights granted to Aimmune hereunder with respect to the Xencor Patents and Xencor Know-How, or (b) without Aimmune's prior written consent, amend or otherwise modify or permit to be amended or modified, the Upstream Agreement in any respect that would adversely affect Aimmune's rights with respect to, the Antibody or Products. Xencor shall promptly notify Aimmune upon Xencor's becoming aware of any alleged, threatened, or actual breach of the Upstream Agreement by either Party and shall not take any action that would reasonably give rise to the right of the counterparty to terminate the Upstream Agreement.

2.7 Technology Transfer. Xencor shall use Commercially Reasonable Efforts to transfer, and Aimmune shall use Commercially Reasonable Efforts to receive, the Xencor Know-How, Regulatory Materials, and Regulatory Data, in each case, as identified on Schedule 2.7 to 15

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permit and enable Aimmune or its Affiliates to Develop and Manufacture the Product pursuant to the terms of this Agreement no later than [***] ([***]) Business Days after the Effective Date. The technology transfer under this Section 2.7 shall occur in an orderly fashion and in a manner reasonably agreed by the Parties. The implementation and transfer of information pursuant hereto shall be conducted through electronic, email and teleconference consultation between the Parties. [***] shall be responsible for any Development or Manufacturing related out-of-pocket costs associated with such technology transfer, including lab runs, pilot scale testing and demo batches. Xencor will allocate adequate appropriately qualified representatives to enable Aimmune to practice and understand the Xencor Know-How, Regulatory Materials, and Regulatory Data, including in connection with the transition of Manufacturing responsibility to Aimmune, Xencor's obligations under this Section 2.7 shall not exceed an aggregate of [***] ([***]) full- time equivalent hours unless the Parties otherwise agree in writing [***].

ARTICLE 3 DEVELOPMENT

3.1 Overview of Development. Subject to the terms and conditions of this Agreement, Aimmune shall be responsible for the Development of the Product as set forth herein. Aimmune, itself or with or through its Affiliates and Sublicensees, shall use Commercially Reasonable Efforts to perform the Development Activities for the Product to (i) achieve the development milestones set forth in Section 7.2, and (ii) obtain Regulatory Approval for the Product.

3.2 Compliance. Aimmune shall conduct the Development Activities in accordance with sound and ethical business and scientific practices, and in compliance with all Applicable Law, including GCPs and GLPs, and also including all applicable data privacy and data protection laws. In addition, Aimmune shall not use in any capacity, in connection with its Development (or Commercialization) of the Product hereunder, any Person who has been debarred pursuant to Section 306 of the FD&C Act (or similar Applicable Law outside of the U.S.), or who is the subject of a conviction described in such section, and Aimmune shall inform Xencor in writing promptly if it or any Person who is performing services for Aimmune hereunder is debarred or is the subject of a conviction described in Section 306 (or similar Applicable Law outside of the U.S.), or if any action, suit, claim, investigation or legal administrative proceeding is pending or, to Aimmune's knowledge, is threatened, relating to the debarment of Aimmune or any Person used in any capacity by Aimmune in connection with its Development (or Commercialization) of the Product hereunder. Xencor shall not use in any capacity in connection with performing its obligations under this Agreement, any Person who has been debarred pursuant to Section 306 of the FD&C Act (or similar Applicable Law outside of the U.S.), or who is the subject of a conviction described in such section. Xencor shall inform Aimmune in writing immediately promptly if it or any Person who is performing services for Xencor hereunder is debarred or is the subject of a conviction described in Section 306 (or similar Applicable Law outside of the U.S.), or if any action, suit, claim, investigation or legal administrative proceeding is pending or, to Xencor's knowledge, is threatened, relating to the debarment of Xencor or any Person used in any capacity by Xencor in connection with its Development or Manufacture of the Product prior to the Effective Date or performance under this Agreement or during the Term in the course of performing Xencor's obligations under this Agreement. 16

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3.3 Development Costs. As between the Parties, Aimmune shall be solely responsible for one hundred percent (100%) of all Development costs incurred with respect to any Development Activities.

3.4 Records, Reports and Information. Aimmune shall, and shall cause each of the other Aimmune Agreement Entities to, maintain current and accurate records of all Development Activities conducted by it and all data and other information resulting from such work (which records shall include, as applicable, books, records, reports, research notes, charts, graphs, comments, computations, analyses, recordings, photographs, computer programs and documentation thereof (e.g., samples of materials and other graphic or written data generated in connection with the Development Activities)). Such records shall properly reflect all work done and results achieved in the performance of the Development Activities in sufficient detail and in good scientific manner appropriate for regulatory and patent purposes. Aimmune shall document all preclinical studies and Clinical Trials to be conducted in formal written study reports according to applicable national and international (e.g., ICH, GCP and GLP) guidelines.

ARTICLE 4 REGULATORY

4.1 Regulatory Filings and Regulatory Approvals.

4.1.1 General Responsibilities; Ownership of Regulatory Approvals. Aimmune shall be responsible for the preparation of all Regulatory Materials necessary or desirable for obtaining and maintaining the Regulatory Approvals for the Product and Aimmune shall submit such Regulatory Materials, as applicable, to the applicable Governmental Authorities. For clarity, to the extent allowed by Applicable Law, all Regulatory Approvals for the Product shall be held and owned by Aimmune in its name.

4.1.2 Pricing Approvals. To the extent that a given country or regulatory jurisdiction requires Pricing Approval for sale of the Product, Aimmune shall (to the extent permitted by Applicable Laws) be solely responsible for (and shall use Commercially Reasonable Efforts toward) obtaining and maintaining Pricing Approvals in all such countries and regulatory jurisdictions in which it obtains Regulatory Approval for Product, in its own name.

4.1.3 Cost of Regulatory Activities. All regulatory costs incurred in connection with the preparation of Regulatory Materials, and obtaining of Product Approvals, for the Product shall be borne solely by Aimmune. Aimmune shall be responsible for all regulatory costs involved in the maintenance of all Regulatory Approvals for the Product.

4.1.4 Reporting and Review. Pursuant to the updates to be provided to Xencor under Section 2.5, Aimmune shall keep Xencor reasonably informed in connection with the preparation of all material Regulatory Materials, Regulatory Authority review of Regulatory Materials, and Regulatory Approvals, in each case with respect to the Product. 17

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4.1.5 Safety Reporting. Aimmune shall provide a [***] safety report in connection with the Development of the Product. Aimmune shall determine, [***], the contents and frequency of such reports, but in any event such reports will be made as [***] for Xencor to remain informed of the safety status of the Product to assess, monitor and report to Regulatory Authorities information relevant to the safety of Product in connection with Xencor's efforts to obtain Regulatory Approval of products that are not the Product and that [***], and comply with Applicable Laws. Xencor shall provide a [***] safety report in connection with the development of products (other than Product) that [***]. Xencor shall determine, [***], the contents and frequency of such reports, but in any event such reports will be made as [***] for Aimmune to assess, monitor and report to Regulatory Authorities information relevant to the safety of Product in connection with Aimmune's efforts to obtain Regulatory Approval of the Product and comply with Applicable Laws.

4.2 No Other Regulatory Filings. Except as otherwise expressly set forth in this ARTICLE 4, Aimmune and Aimmune Agreement Entities shall not file any Regulatory Materials or Regulatory Approvals that are based on any Xencor Technology.

4.3 Pharmacovigilance and Medical Inquiries.

4.3.1 Pharmacovigilance. Subject to Section 4.1.1, Aimmune, as the holder of the Product Approvals, shall be responsible for the collection, review, assessment, tracking and filing of information related to adverse events associated with the Product (whether or not Product Approval has been achieved), in each case in accordance with Applicable Law and this Agreement (and Aimmune shall, in the Development and Commercialization of the Product, record, investigate, summarize, notify, report and review all adverse events in accordance with Applicable Law).

4.3.2 Medical Inquiries for the Product. Following the Effective Date, subject to Section 4.1.1, Aimmune shall be responsible for handling all medical questions or inquiries in each country, including all Product Complaints, with regard to any Product distributed or sold by or on behalf of Aimmune (or any of the other Aimmune Agreement Entities), in each case in accordance with Applicable Law and this Agreement.

4.3.3 Regulatory Authority Communications. In addition to its obligations under this Agreement, each Party shall disclose to the other Party (and each Party shall have the right to subsequently disclose to its Affiliates and subcontractors and licensees, specifically those licensees of the Product in the case of Aimmune, who are bound by obligations of confidentiality substantially consistent with those in ARTICLE 12) the following regulatory information: All material information pertaining to material adverse or potentially material adverse actions taken or that may be taken by Regulatory Authorities, in connection with the Product or Antibody, including any notice, audit notice, notice of initiation by Regulatory Authorities of investigations, detentions, seizures or injunctions concerning the Product or Antibody, notice of violation letter (i.e., an untitled letter), warning letter, service of process or other equivalent 18

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communication or action. Without limiting the generality of the foregoing, each Party shall promptly, but in any event within [***] ([***]) Business Days, inform the other Party of any material adverse or potentially material adverse actions taken or that may be taken by Regulatory Authorities in connection with the Product or Antibody, including any notice, audit notice, notice of initiation by Regulatory Authorities of investigations, detentions, seizures or injunctions concerning the Product or Antibody, notice of violation letter (i.e., an untitled letter), warning letter, service of process or other equivalent communication or action.

4.3.4 Recall, Withdrawal, or Market Notification of Product. In the event that any Governmental Authority threatens or initiates any action to remove the Product from the market, Aimmune shall notify Xencor of such communication promptly, but in no event later than [***] ([***]) Business Days, after receipt thereof. Aimmune shall [***] any recall, withdrawal or market notification of the Product. As between the Parties, all costs and expenses associated with implementing a recall, withdrawal or market notification with respect to the Product shall be borne by [***].

ARTICLE 5 COMMERCIALIZATION

5.1 Commercialization. During the Term, as between the Parties, Aimmune shall be solely responsible for Commercializing the Product. Aimmune shall be responsible for one hundred percent (100%) of the expenses (including Pre-Marketing and other Commercialization expenses) incurred in connection with the Commercialization of the Product.

5.2 Aimmune's Performance.

5.2.1 Specific Commercialization Obligations. Without limiting the generality of the provisions of Section 5.1, in connection with the Commercialization of the Product by or on behalf of Aimmune or its Affiliates and Sublicensees hereunder:

(a) Aimmune, itself or with or through its Affiliates and Sublicensees, shall (i) use Commercially Reasonable Efforts to Commercialize the Product in the Licensed Field throughout the Major Territory, (ii) represent the Product accurately and fairly, and (iii) not sell or distribute the Product in a bundle with other products at a discount that is not equitably allocated between Product and other products with which the Product is bundled.

(b) Aimmune shall not (i) [***], or (ii) utilize deceptive, misleading or unethical business practices, in each case in the course of performing activities pursuant to this Agreement.

(c) Aimmune, itself or with or through its Affiliates and Sublicensees, shall be solely responsible for (i) receiving, accepting and filling orders for the Product, (ii) handling all returns of the Product, (iii) controlling invoicing, order processing and collection of accounts receivable for the sales of the Product, and (iv) distributing and managing inventory of the Product. 19

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5.3 Reports. Without limiting Aimmune's other reporting obligations hereunder, Aimmune shall, during the fourth Calendar Quarter of each Calendar Year after the First Commercial Sale of a Product, provide Xencor [***] involving Product during the preceding four (4) Calendar Quarters.

5.4 Product Trademarks and Product Trade Dress.

5.4.1 Product Trademark. Aimmune shall Commercialize the Product under the trademark and the trade dress selected by Aimmune (the Product Trademark and the Product Trade Dress, respectively).

5.4.2 Use and Ownership of Product Trademarks and Product Trade Dress. All uses of the Product Trademark and Product Trade Dress by Aimmune (and its other Aimmune Agreement Entities) to identify and/or in connection with the Commercialization of the Product shall be in accordance with Regulatory Approvals and all Applicable Law. Aimmune or the other Aimmune Agreement Entities shall own and retain all rights to the Product Trademark and Product Trade Dress (in each case, together with all goodwill associated therewith). Aimmune or the other Aimmune Agreement Entities shall also own rights to any internet domain names incorporating the Product Trademark or any variation or part of such trademark as its URL address.

5.4.3 Maintenance of Product Trademark. During the Term, Aimmune or the other Aimmune Agreement Entities will use Commercially Reasonable Efforts to establish and maintain the Product Trademark and will [***].

5.4.4 No Inclusion of Xencor Logos on Packaging and Promotional Materials. Notwithstanding anything to the contrary herein, Aimmune shall not use any Xencor trademark, names, logos or housemark in connection with any Promotional Materials or the Product without Xencor's written consent. Without limiting the foregoing, Aimmune will take no action that will interfere with or diminish Xencor's rights in its respective trademarks, names and logos, and if Xencor reasonably believes that the use of any trademarks, names and logos by Aimmune hereunder is interfering with or diminishing its rights, Xencor shall notify Aimmune thereof in writing and Aimmune shall promptly cease use of such trademarks, names or logos in such manner.

5.5 Commercialization Data. As between the Parties, Aimmune shall own all marketing and sales data and information resulting from its Commercialization of the Product during the Term (the Commercialization Data), including promotional materials, marketing strategies and market research data.

ARTICLE 6 SUPPLY

6.1 Initial Product Supply. Xencor shall provide a [***] supply of Product to Aimmune in the amounts and in the form set forth on Schedule 6.1, which Aimmune agrees to accept on an as-is basis. Xencor shall make available to Aimmune the quantity of the Product 20

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specified on Schedule 6.1 within [***] ([***]) Business Days from the Effective Date or otherwise as agreed to by the Parties, and shall provide appropriate documentation at such time (i.e., appropriate certificates of analysis or compliance, as applicable). The Product shall be made available to Aimmune [***]. For clarity, Aimmune shall bear all costs in connection with such supply of Product related to shipping, taxes, additional testing and other matters.

6.2 Packaging and Labeling; Certain Other Manufacturing Activities. Notwithstanding anything to the contrary contained herein, Aimmune or its designated Third Party shall be responsible ([***]) for all final product labeling and packaging (whether in commercial or clinical packaging presentation), including materials such as patient inserts, patient medication guides, professional inserts and any other written, printed or graphic materials accompanying the Product and considered to be part of the finished Product packaging and labeling, and handling, storage, quality control, quality assurance, testing and release (collectively, Packaging and Labeling). Aimmune or its designated Third Party shall ensure that all such Packaging and Labeling complies with Applicable Laws, GMPs and the Regulatory Approvals for the Product. To the extent that a Third Party is involved in Packaging and Labeling or other activities described in this Section 6.2, [***] shall be [***] responsible for[***], qualifying such Third Party to perform such activities.

ARTICLE 7 PAYMENTS

7.1 Upfront Payments. Within [***] ([***]) days after the Effective Date of this Agreement, Aimmune shall issue to Xencor shares of Aimmune Common Stock (the Shares) in accordance with that certain Stock Issuance Agreement, dated the date hereof, by and among Xencor and Aimmune (the Stock Issuance Agreement), and pay to Xencor by wire transfer of immediately available funds, into an account designated in writing by Xencor, an amount equal to five million Dollars ($5,000,000) (together with the issuance of the Shares, the Upfront Payment). The Upfront Payment shall be nonrefundable and noncreditable against any other payments due hereunder.

7.2 Milestone Payments. Aimmune shall pay to Xencor the one-time milestone payments described in this Section 7.2 following achievement (and only upon the first occurrence) of the corresponding milestone event for a Product. Aimmune shall promptly notify Xencor in writing of, but in no event later than [***] ([***]) days after, the achievement of each such milestone event with respect to a Product. Aimmune shall pay the applicable milestone payment by wire transfer of immediately available funds within [***] ([***]) days after the achievement (and only upon the first occurrence) of the applicable milestone event into an account designated by Xencor in writing. Each such milestone payment is nonrefundable and noncreditable against any other payments due hereunder. 21

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Milestone Event Milestone Payment Development Milestone [***] $ [***] [***] $ [***] [***] $ [***] [***] $ [***] [***] $ [***] [***] $ [***] Sales Milestones [***] $ [***] [***] $ [***] [***] $ [***] [***] $ [***]

7.3 Royalty Payments.

7.3.1 Product. On a Product-by-Product and country-by-country basis during the Royalty Term applicable to such Product and such country, Aimmune shall pay to Xencor the following royalties on Net Sales of Products, subject to Section 7.3.2:

Aggregate Annual Net Sales Royalty Rate [***] [***]% [***] [***]% [***] [***]% [***] [***]% [***] [***]%

[***]. 22

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7.3.2 Royalty Reductions.

(a) No Valid Claim. On a country-by-country and Product-by-Product basis, if at any time during the Royalty Term with respect to such country and such Product, such Product is not Covered by any Valid Claim of a [***], the royalty rate applied to Net Sales of such Product shall be the royalty rate in Section 7.3.1 reduced by [***] percent ([***]%) for so long as during the Royalty Term such Product is not Covered by a Valid Claim of a [***] in such country.

(b) Third Party Intellectual Property. Aimmune shall have the right (but not the obligation), at its own expense (subject to the reduction provided for by this Section 7.3.2(b)), to obtain any licenses from any Third Parties that are not Sublicensees of Aimmune with respect to a Product in such country under any issued Patents that would be infringed by the practice of Xencor Technology licensed under Section 2.1 with respect to a given Product in a particular country (each such Patent, a Third Party Patent). If Aimmune obtains such a license to a Third Party Patent, Aimmune shall be entitled to credit [***] percent ([***]%) of the royalties paid to such Third Party during a Calendar Quarter against the royalty payment otherwise payable by Aimmune to Xencor pursuant to this Section 7.3 with respect to such Product and such country in such Calendar Quarter. Notwithstanding the foregoing, Aimmune shall have no right to reduce payments due to Xencor under this Agreement by any amount paid to [***] in connection with the Upstream Agreement or any other agreement entered into between Aimmune and [***].

(c) Generic Competition. On a country-by-country and Product-by-Product basis, if at any time during the Royalty Term with respect to such country and such Product there is one or more Generic Product(s) with respect to such Product being sold for [***]) consecutive Calendar Quarters, then [***] for such country and such Product, the royalty rate for such Product shall be reduced, after giving effect to any reduction applicable to such Product in such country pursuant to [***], on a Calendar Quarter basis as follows:

(i) if the cumulative Net Sales of such Product in such country during such Calendar Quarter are equal to or less than [***] percent ([***]%), but are greater than [***] percent ([***]%), of the Baseline Quarter Net Sales, then the royalty rate will be reduced for such Calendar Quarter by [***] percent ([***]%); and

(ii) if the cumulative Net Sales of such Product in such country during such Calendar Quarter are less than [***] percent ([***]%) of the Baseline Quarter Net Sales of the Baseline Quarter Net Sales, then the royalty rate for such Calendar Quarter will be reduced by [***] percent ([***]%).

provided, that, for clarity, on a country-by-country and Product-by-Product basis, there will be no royalty rate reduction with respect to a given country and Product pursuant to this Section 7.3.2(c) with respect to the initial [***] ([***]) consecutive Calendar Quarter periods during which Generic Product entry with respect to such Product and such country is being established. 23

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(d) Royalty Floor. Notwithstanding any provision set forth in this Agreement to the contrary, none of the permitted reductions to royalties provided in this Section 7.3.2 will reduce any royalty payment payable in a given Calendar Quarter with respect to Net Sales of any Product in any country during the Royalty Term by more than [***] percent ([***]%) of the royalties otherwise owed to Xencor pursuant to Section 7.3.1.

ARTICLE 8 PAYMENT; RECORDS; AUDITS

8.1 Royalty Payments and Reports. The royalty payments due by Aimmune to Xencor under Section 7.3 shall be calculated, reported and paid for each Calendar Quarter within [***] ([***]) days after the end of each Calendar Quarter and shall be accompanied by a report setting forth Net Sales of Products by Aimmune in sufficient detail to permit confirmation of the accuracy of the royalty payment made, including the gross sales and Net Sales of each Product, on a country-by-country basis, and the exchange rates used in accordance with Section 8.2. Without limiting the generality of the foregoing, Aimmune shall require its Affiliates and other Aimmune Agreement Entities to account for its Net Sales and to provide such reports with respect thereto as if such sales were made by Aimmune.

8.2 Manner and Place of Payment. When conversion of payments from any currency other than U.S. Dollars is required, such conversion shall be at an exchange rate equal to the rates of exchange for the currency of the country from which such payments are payable as published by The Wall Street Journal, Western U.S. Edition, on the last Business Day of the Calendar Quarter in which the applicable sales were made in such country. All payments hereunder shall be payable in U.S. Dollars. All payments owed under this Agreement shall be made by wire transfer in immediately available funds to a bank and account designated in writing by Xencor, unless otherwise specified in writing by Xencor.

8.3 Taxes.

8.3.1 The Parties acknowledge and agree that it is their mutual objective and intent to minimize, to the extent feasible, taxes payable with respect to their collaborative efforts under this Agreement to cooperate and coordinate with each other to achieve such objective. For the avoidance of doubt, as between the Parties, Aimmune shall be responsible for any Branded Prescription Drug Fees that may be levied under section 9008 of the Affordable Care Act with respect to any Product sold.

8.3.2 Subject to this Section 8.3.2, Xencor will pay any and all taxes, including withholdings, levied on account of any payments made to it under this Agreement. If any taxes are paid or required to be withheld by Aimmune for the benefit of Xencor on account of any payments payable to Xencor under this Agreement, Aimmune will (i) deduct such taxes from the amount of payments otherwise due to Xencor, (ii) timely pay the taxes to the proper taxing authority, (iii) send proof of payment to Xencor within [***] ([***]) days following such payment and (iv) cooperate with Xencor in any way reasonably required by Xencor to obtain available reductions, credits or refunds of such taxes. Notwithstanding the foregoing, if (a) Aimmune assigns its rights or obligations or delegates its rights under this Agreement, (b) as a 24

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result of such assignment or delegation, Aimmune (or its assignee) is required by Applicable Law to withhold taxes from or in respect of any amount payable under this Agreement, and (c) such withholding taxes exceed the amount of withholding taxes that would have been applicable but for such assignment or delegation, then any such amount payable shall be increased to take into account such withholding taxes as may be necessary so that, after making all required withholdings (including withholdings on the additional amounts payable), the payee receives an amount equal to the sum it would have received had no such increased withholding been made. Each Party shall cooperate with the other Party in any way reasonably requested by the other Party to minimize the withholding tax implications of any such assignment or delegation.

8.3.3 Aimmune shall be responsible for all Value Added Taxes (VAT), if any, attributable to transactions contemplated by this Agreement without any offset or reimbursement from Xencor. Xencor shall cooperate with Aimmune in any way reasonably requested by Aimmune to obtain available reductions, credits or refunds of any VAT amounts attributable to transactions contemplated by this Agreement.

8.3.4 [***].

8.4 Records; Audits. During the Term and for [***] ([***]) years thereafter, Aimmune shall keep, and shall cause its Affiliates and Sublicensees to keep and provide to Xencor, complete and accurate records pertaining to the sale or other disposition of Product in sufficient detail to permit Xencor to confirm the accuracy of payments due hereunder. Xencor shall have the right, upon [***] ([***]) days' prior written notice to Aimmune, to cause an independent, certified international public accounting firm reasonably acceptable to Aimmune or reasonably acceptable to its Affiliates or Sublicensees, as applicable, to audit such records during Aimmune's, or its Affiliate's or Sublicensees', as applicable, normal business hours to confirm the number of Product units sold, the gross sales and Net Sales of Product, the royalties payable, the method used to calculate the royalties payable, and the exchange rates used in accordance with Section 8.2. The audit shall be limited to pertinent records kept by Aimmune and its Affiliates and Sublicensees for any year ending not more than [***] ([***]) months prior to the date of the written notice. An audit under this Section 8.4 shall not occur more than [***] in any Calendar Year, except in the case of any subsequent for cause audit. The accounting firm shall disclose to Xencor only whether the reports are correct or incorrect and the specific details concerning any discrepancies. No other information shall be provided to Xencor. The accounting firm shall provide Aimmune with a copy of any disclosures or reports made to Xencor and Aimmune shall have an opportunity to discuss such disclosures or reports with Xencor and the accounting firm. Information, disclosures, or reports arising from any such examination shall be Confidential Information of Aimmune subject to the confidentiality and other obligations of ARTICLE 12. Prompt adjustments shall be made by the Parties to reflect the results of such audit. Xencor shall bear the full cost of such audit unless such audit discloses an underpayment of more than [***] percent ([***]%) of the payments due under this Agreement, in which case, [***].

8.5 Late Payments. In the event that any payment due under this Agreement is not sent to Xencor when due in accordance with the applicable provisions of Sections 7.1, 7.2, or 8.1, the payment shall accrue interest from the date due at the [***], plus an additional [***] 25

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percentage points ([***] ppts); provided, however, that (a) in the event that more than [***] payment due under this Agreement is not received by Xencor when due, the foregoing rate shall increase to the prime rate plus an additional [***] percentage points ([***] ppts) per year calculated on the number of days such payment is delinquent, compounded annually and computed on the basis of a three hundred sixty five (365) day year, and (b) in no event shall such rate exceed the maximum legal annual interest rate. The payment of such interest shall not limit Xencor from exercising any other rights it may have as a consequence of the lateness of any payment.

ARTICLE 9 INTELLECTUAL PROPERTY MATTERS

9.1 Ownership of Intellectual Property.

9.1.1 General. Subject to the provisions of this Section 9.1.1 and except as expressly set forth otherwise in this Agreement, (i) Xencor shall solely own Patents Covering any Xencor Invention (Xencor Collaboration Patents), and (ii) Aimmune shall solely own Patents Covering any Aimmune Invention (Aimmune Collaboration Patents). All Joint Inventions shall be jointly owned by the Parties, and Patents Covering Joint Inventions shall be referred to as Joint Collaboration Patents. Each Party shall promptly disclose to the other Party all Xencor Inventions, Aimmune Inventions and Joint Inventions, as applicable, made by it during the Term. The determination of inventorship for such Inventions shall be made in accordance with Applicable Law relating to inventorship set forth in the patent laws of the United States (Title 35, United States Code).

9.1.2 Employees. Each Party will require all of its and its Affiliates' employees to assign all Inventions that are developed, made or conceived by such employees according to the ownership principles described in Section 9.1.1 free and clear of all liens, encumbrances, charges, security interests, mortgages or other similar restrictions. Each Party will also use its Commercially Reasonable Efforts to require any agents or independent contractors performing an activity pursuant to this Agreement to assign all Inventions that are developed, made or conceived by such agents or independent contractors to the relevant Party, according to the ownership principles described in Section 9.1.1 free and clear of all liens, encumbrances, charges, security interests, mortgages or other similar restrictions.

9.2 Disclosures; Disputes Regarding Inventions. Each Party shall, before filing a new Patent application (including provisionals and continuations-in-part) claiming an Invention, promptly disclose such Invention to the other Party and shall provide to the other Party with a copy of the proposed patent application at least [***] ([***]) Business Days before filing such application or such shorter time as may be required to preserve Patent rights, including the avoidance of a statutory bar or prior publication. If such other Party believes that the first Party's proposed Patent application discloses such other Party's Confidential Information, such other Party shall so notify the first Party within such [***] ([***]) Business Days after receipt thereof, and such first Party shall amend its proposed application to comply with the confidentiality provisions of this Agreement. If the Parties are in agreement as to the designation of the Invention as a Xencor Invention, Joint Invention or Aimmune Invention, as applicable, they can 26

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continue as set forth in Section 9.3. If the Parties disagree as to whether an Invention is a Xencor Invention, Joint Invention or Aimmune Invention, and are unable to reach agreement within [***] ([***]) days after commencing discussions, then the provisions of Section 15.1 shall apply to such dispute without limiting either Party's right to continue with filing such application.

9.3 Patent Filings, Prosecution and Maintenance.

9.3.1 Xencor General Patents. Subject to, and without limiting Aimmune's rights under, Section 9.4 of this Agreement, Xencor shall have the sole right to prepare, file, prosecute and maintain all Xencor General Patents, [***], including by conducting reissues, reexaminations, interferences, and/or defending against post grant proceedings, such as inter partes reviews and oppositions and other challenges to the validity or enforceability of such Xencor General Patents. Xencor shall keep Aimmune generally informed of the status of Xencor General Patents upon Aimmune's request reasonable request from time-to-time.

9.3.2 Xencor Product Specific Patent, Aimmune Patents and Joint Collaboration Patents.

(a) Aimmune shall have the first right to prepare, file, prosecute and maintain (i) Xencor Product Specific Patents, (ii) Aimmune Patents Covering an Antibody or Product, and (iii) Joint Collaboration Patents, [***], including by conducting reissues, reexaminations, interferences, and/or defending against post grant proceedings, such as inter partes reviews and oppositions and other challenges to the validity or enforceability of the relevant Patent; provided that Aimmune shall receive Xencor's prior written approval, not to be unreasonably withheld or delayed, before conducting reissues, reexaminations, interferences, and/or defending against post grant proceedings for the [***], such as inter partes reviews and oppositions and other challenges to the validity or enforceability of such relevant Patent. [***]. [***]. Aimmune shall keep Xencor informed of the status of Xencor Product Specific Patents, Aimmune Patents Covering an Antibody or Product, and Joint Collaboration Patents [***]. With respect to any material substantive submissions that Aimmune is required to or otherwise intends to submit to a patent office with respect to a [***], Aimmune shall provide a draft of such submission to Xencor at least [***] ([***]) days (or such time as is possible) prior to the deadline for, or the intended filing date of, such submission, whichever is earlier (or as soon as reasonably possible if Aimmune has less than [***] ([***]) days' notice of a deadline for submission). Xencor shall have the right to review and comment upon any such submission by Aimmune to a patent office, and will provide such comments within [***] ([***]) days after receiving such submission (provided, that if no comments are received within such [***] ([***]) day period, then Aimmune may proceed with such submission). Aimmune shall [***]any suggestions or recommendations of Xencor concerning the preparation, filing, prosecution and maintenance thereof.

(b) The Parties shall cooperate reasonably in the prosecution of all Xencor Product Specific Patents, Aimmune Patents Covering an Antibody or Product and Joint Collaboration Patents and shall share all material information relating thereto promptly after receipt of such information. If, during the Term, Aimmune (i) intends to allow any Xencor Product Specific Patent, Aimmune Patent Covering an Antibody or Product or Joint 27

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Collaboration Patent to expire or intends to otherwise abandon any such Xencor Product Specific Patent, Aimmune Patent Covering an Antibody or Product or Joint Collaboration Patent, or (ii) decides not to prepare or file patent applications Covering Aimmune Inventions or Joint Inventions, Aimmune shall notify Xencor of such intention or decision at least [***] ([***]) days (or as soon as possible if less than [***] ([***]) days) prior to any filing or payment due date, or any other date that requires action, in connection with such Xencor Product Specific Patent, Aimmune Patent Covering an Antibody or Product or Joint Collaboration Patent, and Xencor shall thereupon have the right, but not the obligation, to assume responsibility for the preparation, filing, prosecution or maintenance thereof [***], in the name of Xencor or Aimmune, as applicable.

9.3.3 Cooperation. The Parties agree to cooperate in the preparation, filing, prosecution and maintenance of all Patents under this Section 9.3, including obtaining and executing necessary powers of attorney and assignments by the named inventors, providing relevant technical reports to the filing Party concerning the Invention disclosed in such Patent, obtaining execution of such other documents which are needed in the filing and prosecution of such Patent, and, as requested by a Party, updating each other regarding the status of such Patent, and shall cooperate with the other Party so far as reasonably necessary with respect to furnishing all information and data in its possession reasonably necessary to obtain or maintain such Patents.

9.4 Infringement of Third Party Patents; Enforcement of Patents.

9.4.1 Infringement of Third Party Patents. Each of the Parties shall promptly, but in any event no later than [***] ([***]) days after receipt of notice thereof, notify the other Party in writing in the event of any claims by a Third Party of alleged patent infringement by Aimmune or the other Aimmune Agreement Entities with respect to the research, development, manufacture, use, sale, offer for sale or importation of the Antibody or Product (each, an Infringement Claim). With respect to any Infringement Claim, the Parties shall attempt to negotiate in good faith a resolution with respect thereto. If the Parties cannot settle such Infringement Claim with the appropriate Third Parties within [***] ([***]) days after the receipt of the notice pursuant to this Section 9.4.1, then the following shall apply:

(a) In the case of any such claim against Aimmune alone or against both Aimmune and Xencor, in each case, with respect to the Antibody or Product, then Aimmune shall be deemed to be the Controlling Party for purposes of such Infringement Claim. In the case of any claim against Xencor alone, then Xencor shall be deemed to be the Controlling Party for purposes of such Infringement Claim.

(b) The Controlling Party shall assume control of the defense of such Infringement Claim. The non-Controlling Party, upon request of the Controlling Party, agrees to join in any such litigation, and in any event to reasonably cooperate with the Controlling Party, in each case, at the [***] expense. The non-Controlling Party will have the right to consult with the Controlling Party concerning such Infringement Claim and to participate in and be represented by independent counsel in any litigation in which such non-Controlling Party is a party at its own expense. The Controlling Party shall have the exclusive right to settle any 28

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Infringement Claim without the consent of the other Party, unless such settlement would have a material adverse impact on the other Party (in which case the consent of such other Party shall be required). For purposes of this Section 9.4.1(b), any settlement that would involve the waiver of rights (including the rights to receive payments) of such other Party shall be deemed a material adverse impact and shall require the consent of such other Party, such consent not to be unreasonably withheld.

9.4.2 Prosecution of Infringers.

(a) Notice. If either Party (i) receives notice of any patent nullity actions, any declaratory judgment actions or any alleged or threatened infringement of patents or patent applications or misappropriation of intellectual property comprising the (w) Joint Inventions, (x) Xencor Patents, Xencor Inventions, or Xencor Know-How or (y) Aimmune Patents, Aimmune Inventions, Joint Collaboration Patents or Aimmune Know-How, or (ii) learns that a Third Party is infringing or allegedly infringing any Patent within the Xencor Patents, Joint Collaboration Patents or Aimmune Patents, or if any Third Party claims that any such Patent is invalid or unenforceable, it will promptly notify the other Party thereof, including providing evidence of infringement or the claim of invalidity or unenforceability reasonably available to such Party. Any matters relating to patent nullity actions, declaratory judgment actions or claims of Patent invalidity or unenforceability will be handled as provided in Section 9.3.

(b) Enforcement of Patents.

(i) As between the Parties, Aimmune will have the first right (but not the obligation) to take the appropriate steps to enforce any Patent within the Xencor Product Specific Patents, Aimmune Patents and Joint Collaboration Patents against infringement by a Third Party, that is, in each cause, conducting the manufacture, sale, use, offer for sale or import of any biopharmaceutical product. Aimmune may take any steps it reasonably believes appropriate to enforce such Patent, including the initiation, prosecution and control of any suit, proceeding or other legal action by counsel of its own choice and shall bear the costs of such enforcement, as applicable. Notwithstanding the foregoing, Xencor will have the right, at [***] expense, to be represented in any such action by counsel of its own choice.

(ii) If, pursuant to Section 9.4.2(b)(i), Aimmune fails to institute such litigation or otherwise take steps to remedy the applicable infringement within [***] ([***]) days of the date one Party has provided notice to the other Party pursuant to Section 9.4.2(a) of such infringement, then Xencor will have the right (but not the obligation), at [***] expense, to bring any such suit, action or proceeding by counsel of its own choice and Aimmune will have the right, at [***] expense, to be represented in any such action by counsel of its own choice.

(iii) As between the Parties, Xencor will have the sole right (but not the obligation) to take the appropriate steps to enforce any Patent within the Xencor General Patents against infringement by a Third Party, that is, in each cause, conducting the manufacture, sale, use, offer for sale or import of any biopharmaceutical product. Xencor may take steps including the initiation, prosecution and control of any suit, proceeding or other legal action by counsel of its own choice and shall bear the costs of such enforcement, as applicable. 29

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(c) Cooperation; Damages.

(i) If one Party brings any suit, action or proceeding under Section 9.4.2(b), the other Party agrees to be joined as party plaintiff if necessary to prosecute the suit, action or proceeding and to give the first Party reasonable authority to file and prosecute the suit, action or proceeding; provided, however, that neither Party will be required to transfer any right, title or interest in or to any property to the other Party or any other party to confer standing on a Party hereunder without the first Party's consent, not to be unreasonably withheld, conditioned or delayed.

(ii) The Party not pursuing the suit, action or proceeding hereunder will provide reasonable assistance to the other Party, including by providing access to relevant documents and other evidence and making its employees available, subject to the other Party's reimbursement of any costs incurred by the non-enforcing or defending Party in providing such assistance.

(iii) Aimmune shall not, without the prior written consent of Xencor ([***]), enter into [***] relating to any claim, suit or action that it brought under Section 9.4.2 involving a [***]. Xencor shall not, without the prior written consent of Aimmune ([***]), enter into any [***] relating to any claim, suit or action that it brought under Section 9.4.2 involving an [***].

(iv) Any settlements, damages or other monetary awards (a Recovery) recovered pursuant to a suit, action or proceeding brought pursuant to Section 9.4.2(b) will be allocated first to the costs and expenses of the Party taking such action, and second, to the costs and expenses (if any) of the other Party, with any remaining amounts (if any) to be allocated as follows: (i) for a suit, action or proceeding controlled by Aimmune, Aimmune retains [***] percent ([***]%) and Xencor retains [***] percent ([***]%) of such Recovery, and (ii) for a suit, action or proceeding controlled by Xencor, be allocated between the Parties such that Xencor retains [***] percent ([***]%) and Aimmune retains [***] percent ([***]%) of such Recovery, provided that, notwithstanding the foregoing clauses (i) or (ii), the portion of any Recoveries from any such actions involving [***].

9.5 Patent Term Extensions. As between Xencor and Aimmune, Aimmune shall have the right, but not the obligation, to seek Patent Term Extensions (including any supplemental protection certificates and the like available under Applicable Law) in any country in relation to all [***]; provided that if, with respect to a given country, Aimmune [***] then Xencor [***]. Aimmune will reasonably consider seeking Patent Term Extensions for [***], and will not [***] for the purpose of [***] under this Agreement. Aimmune and Xencor shall cooperate in connection with all such activities. Each Party, its agents and attorneys will give due consideration to all suggestions and comments of the other Party regarding any such activities, but in the event of a disagreement between the Parties, Aimmune will have the final decision making authority as to [***]. 30

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9.6 Patent Marking. Aimmune shall mark the Product marketed and sold by Aimmune (or the other Aimmune Agreement Entities) hereunder with appropriate patent numbers or indicia.

9.7 Patent Challenge. Xencor will be permitted to terminate this Agreement upon written notice to Aimmune, effective [***] ([***]) days after receipt of written notice thereof by Aimmune, if Aimmune or any of the other Aimmune Agreement Entities, directly or indirectly, (i) [***], or (ii) [***].

ARTICLE 10 REPRESENTATIONS, WARRANTIES AND COVENANTS; COMPLIANCE

10.1 Mutual Representations and Warranties. Each Party hereby represents and warrants to the other Party as follows, as of the Effective Date:

10.1.1 Corporate Existence and Power. It is a company or corporation duly organized, validly existing, and in good standing under the laws of the jurisdiction in which it is incorporated, and has full corporate power and authority and the legal right to own and operate its property and assets and to carry on its business as it is now being conducted and as contemplated in this Agreement, including the right to grant the licenses granted by it hereunder.

10.1.2 Authority and Binding Agreement. (i) It has the corporate power and authority and the legal right to enter into this Agreement and perform its obligations hereunder, (ii) it has taken all necessary corporate action on its part required to authorize the execution and delivery of this Agreement and the performance of its obligations hereunder, and (iii) this Agreement has been duly executed and delivered on behalf of such Party, and constitutes a legal, valid, and binding obligation of such Party that is enforceable against it in accordance with its terms, except as enforcement may be affected by bankruptcy, insolvency or other similar laws and by general principles of equity.

10.1.3 No Conflicts. The execution, delivery and performance of this Agreement by it does not (i) conflict with any agreement, instrument or understanding, oral or written, to which it is a party and by which it may be bound or (ii) violate any Applicable Law.

10.1.4 All Consents and Approvals Obtained. Except with respect to Regulatory Approvals for the Development, Manufacturing or Commercialization of the Product or as otherwise described in this Agreement, (i) all necessary consents, approvals and authorizations of, and (ii) all notices to, and filings by such Party with, all Governmental Authorities and other Persons required to be obtained or provided by such Party as of the Effective Date in connection with the execution, delivery and performance of this Agreement have been obtained and provided, except for those approvals, if any, not required at the time of execution of this Agreement. 31

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10.2 Additional Representations, Warranties and Covenants of Xencor. Xencor hereby represents, warrants and covenants to Aimmune that, as of the Effective Date:

10.2.1 Xencor has not filed any Marketing Authorization Applications with a Governmental Authority for the sale of the Product.

10.2.2 Xencor is the sole owner or licensee of the Xencor Patents existing as of the Effective Date.

10.2.3 There is no Know-How that is owned by or licensed to Xencor that is necessary in connection with the Development, Manufacture, Commercialization or other use of the Antibody or Product that is not in the Control of Xencor as the Antibody and Product exist, and as being Developed and Manufactured, as of the Effective Date.

10.2.4 Schedule 1.79 and Schedule 1.81, when taken together, set forth a true, complete and correct list of all Patents Controlled by Xencor or its Affiliates as of the Effective Date that relate to the Antibody or Product and are necessary for Developing, Manufacturing or Commercializing the Antibody or Product.

10.2.5 To Xencor's knowledge, Xencor has complied with all Applicable Laws in all material respects, including any disclosure requirements, in connection with the filing, prosecution and maintenance of the Xencor Patents owned by Xencor.

10.2.6 Other than as set forth in Schedule 10.2.6, [***] the issued Patents within the Xencor Patents are neither invalid nor unenforceable.

10.2.7 No claim or demand of any Person has been asserted in writing to Xencor or its Affiliates, or to Xencor's knowledge, its licensees or sublicensees that challenges the rights of Xencor, its Affiliates, licensees or sublicensees to make, use, sell, exploit or license the Antibody or Product or to practice the Xencor Technology.

10.2.8 Neither Xencor nor, to the knowledge of Xencor, its Affiliates, licensees, sublicensees or subcontractors have received written notice of any proceedings pending before or threatened by any Regulatory Authority with respect to the Antibody or Product.

10.2.9 The Upstream Agreement is in full force and effect and, to its knowledge, no facts or circumstances exist that would give either party to the Upstream Agreement the right to terminate for the other party's material breach thereof.

10.2.10 Xencor has not used in any capacity, in connection with its Development or Manufacture of the Product prior to the Effective Date any Person who has been debarred pursuant to Section 306 of the FD&C Act (or similar Applicable Law outside of the U.S.), or who is the subject of a conviction described in such section. 32

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10.2.11 Neither Xencor nor its Affiliates or, to the knowledge of Xencor, its licensees, sublicensees or subcontractors have made any material misstatements in any regulatory filing with any Regulatory Authority with respect to the Antibody or Product.

10.2.12 Neither Xencor nor, to the knowledge of Xencor, its Affiliates, licensees, sublicensees or independent contractors have received any notices or claims of noncompliance with Applicable Law relating to activities conducted by or facilities used by, Xencor, its Affiliates, licensees, sublicensees or independent contractors in connection with the Development or Manufacture of Antibody or Product, and Xencor is not aware of any reasonable basis for any such notices or claims.

10.2.13 [***] as of the Effective Date, neither the Development, Manufacture nor Commercialization of Antibody in the Licensed Field as the Antibody exists as of the Effective Date will infringe or misappropriate any intellectual property rights of any Third Party.

10.2.14 To Xencor's knowledge, Xencor has disclosed to Aimmune all material information in its possession or Control relating to the Antibody and Product, and all such information is accurate in all material respects.

10.2.15 Neither Xencor nor its Affiliates have developed or commercialized, and are not developing or commercializing, either directly or through enabling any Third Party (by license, sublicense or other grant of rights or performance of actions), any antibody [***], other than the Antibody.

10.2.16 The following variations of the Antibody are not required to Develop, Manufacture and Commercialize the Product in the Licensed Field: (i) [***], (ii) [***], (iii) [***], (iv) [***], (v) [***], or (vi) [***].

10.3 Additional Representations, Warranties and Covenants of Aimmune. Aimmune hereby represents, warrants and covenants to Xencor that, as of the Effective Date:

10.3.1 [***]

10.3.2 Aimmune and its Affiliates (a) have not developed or commercialized, and (b) are not developing or commercializing, either directly or through enabling any Third Party, any antibody [***] other than the Antibody and Product pursuant to this Agreement.

10.3.3 As of the Effective Date, Aimmune has conducted due diligence in connection with the Development and Manufacture of the Product in the Licensed Field.

10.4 Disclaimer. Aimmune understands that the Product is the subject of ongoing clinical research and development and that Xencor cannot ensure the safety or usefulness of the Product or that the Product will receive Regulatory Approvals. 33

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10.5 No Other Representations or Warranties. EXCEPT AS EXPRESSLY STATED IN THIS AGREEMENT, NO REPRESENTATIONS OR WARRANTIES WHATSOEVER, WHETHER EXPRESS OR IMPLIED, INCLUDING WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, NON-INFRINGEMENT, OR NON-MISAPPROPRIATION OF THIRD PARTY INTELLECTUAL PROPERTY RIGHTS, ARE MADE OR GIVEN BY OR ON BEHALF OF A PARTY. EXCEPT AS EXPRESSLY STATED IN THIS AGREEMENT, ALL REPRESENTATIONS AND WARRANTIES, WHETHER ARISING BY OPERATION OF LAW OR OTHERWISE, ARE HEREBY EXPRESSLY EXCLUDED.

10.6 Compliance.

10.6.1 Compliance with Anti-Corruption Laws. In connection with this Agreement, each Party represents, warrants and covenants to the other Party that it has complied and will comply with all Applicable Laws (including Anti-Corruption Laws) and industry codes dealing with government procurement, conflicts of interest, corruption or bribery, including, if applicable, the U.S. Foreign Corrupt Practices Act of 1977, as amended, and any laws enacted to implement the Organization of Economic Cooperation and Development Convention on Combating Bribery of Foreign Officials in International Business Transactions.

10.6.2 Prohibited Conduct. In connection with this Agreement, each Party represents, warrants and covenants to the other Party that it has not made, offered, given, promised to give, or authorized, and will not make, offer, give, promise to give, or authorize, any bribe, kickback, payment or transfer of anything of value, directly or indirectly, to any person or to any Government Official for the purpose of: (i) improperly influencing any act or decision of the person or Government Official; (ii) inducing the person or Government Official to do or omit to do an act in violation of a lawful or otherwise required duty; (iii) securing any improper advantage; or (iv) inducing the person or Government Official to improperly influence the act or decision of any organization, including any government or government instrumentality, in order to assist such Party in obtaining or retaining business.

ARTICLE 11 INDEMNIFICATION

11.1 Indemnification by Xencor. Xencor hereby agrees to save, indemnify, defend and hold Aimmune, its Affiliates, and their respective directors, officers, agents and employees harmless from and against any and all losses, damages, liabilities, costs and expenses (including reasonable attorneys' fees and expenses) (collectively, Losses) arising in connection with any and all charges, complaints, actions, suits, proceedings, hearings, investigations, claims, demands, judgments, orders, decrees, stipulations or injunctions by a Third Party (each a Claim) resulting or otherwise arising from (i) any breach by Xencor of any of its representations, warranties, covenants or obligations pursuant to this Agreement, (ii) the Development, Manufacturing, Commercialization (if applicable, after the Term) or the performance of a Clinical Trial for the Antibody or Product conducted by or on behalf of Xencor (or its Affiliates, licensees (other than Aimmune and its Affiliates and Sublicensees), sublicensees, or independent contractors), prior to the Effective Date or after the Term, provided that this Section (ii) is not intended to extend to strict liability Claims relating to the Product, (iii) [***], and (iv) the negligence or willful misconduct by Xencor or its Affiliates, licensees, sublicensees or subcontractors or their respective officers, directors, employees, agents or consultants in performing any obligations under this Agreement, in each case except to the extent that such Losses are subject to indemnification by Aimmune pursuant to Section 11.2. 34

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11.2 Indemnification by Aimmune. Aimmune hereby agrees to save, indemnify, defend and hold Xencor, its Affiliates, and their respective directors, agents and employees harmless from and against any and all Losses arising in connection with any and all Claims resulting or otherwise arising from (i) any breach by Aimmune of any of its representations, warranties, covenants or obligations pursuant to this Agreement, (ii) [***], (iii) the negligence or willful misconduct by Aimmune (or its Affiliates, Sublicensees, subcontractors, wholesalers or distributors) or their respective officers, directors, employees, agents or consultants in performing any obligations under this Agreement, or (iv) the Development, Manufacturing, Packaging and Labeling or Commercialization of the Antibody or a Product hereunder during or after the Term (including, for clarity, any product liability Losses resulting therefrom) by Aimmune (or its Affiliates, Sublicensees, subcontractors, wholesalers or distributors) or their respective officers, directors, employees, agents or consultants, in each case except to the extent that such Losses are subject to indemnification by Xencor pursuant to Section 11.1.

11.3 Indemnification Procedures.

11.3.1 A Party believing that it is entitled to indemnification under, as applicable, Section 11.1 or Section 11.2 (an Indemnified Party) shall give prompt written notification to the other Party (the Indemnifying Party) of the commencement of any Claim for which indemnification may be sought or, if earlier, upon the assertion of any such Claim by a Third Party (it being understood and agreed, however, that the failure by an Indemnified Party to give notice of a Claim as provided in this Section 11.3.1 shall not relieve the Indemnifying Party of its indemnification obligation under this Agreement except and only to the extent that such Indemnifying Party is actually materially prejudiced as a result of such failure to give notice). Within [***] ([***]) days after delivery of such notification, the Indemnifying Party may, upon written notice thereof to the Indemnified Party, assume control of the defense of such Claim with counsel reasonably satisfactory to the Indemnified Party. If a Party believes that a Claim presented to it for indemnification is one as to which the Party seeking indemnification is not entitled to indemnification under, as applicable, Section 11.1 or Section 11.2, it shall so notify the Party seeking indemnification.

11.3.2 If the Indemnifying Party elects to assume the defense of such Claim, the Indemnified Party may participate in such defense at its own expense; provided, that if the Indemnified Party reasonably concludes, based on advice from counsel, that the Indemnifying Party and the Indemnified Party have conflicting interests with respect to such Claim, the Indemnifying Party shall be responsible for the reasonable fees and expenses of counsel to the Indemnified Party solely in connection therewith.

11.3.3 The Indemnifying Party shall keep the Indemnified Party advised of the status of such Claim and the defense thereof and shall consider recommendations made by the Indemnified Party with respect thereto. 35

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11.3.4 The Indemnified Party shall not agree to any settlement of such Claim without the prior written consent of the Indemnifying Party, which shall not be unreasonably withheld. The Indemnifying Party shall not agree to any settlement of such Claim or consent to any judgment in respect thereof that does not include a complete and unconditional release of the Indemnified Party from all liability with respect thereto or that imposes any liability or obligation on the Indemnified Party or adversely affects the Indemnified Party without the prior written consent of the Indemnified Party, which shall not be unreasonably withheld.

11.4 Limitation of Liability. NEITHER PARTY SHALL BE LIABLE TO THE OTHER PARTY FOR ANY LOST PROFITS, OR ANY SPECIAL, CONSEQUENTIAL, INCIDENTAL, OR INDIRECT DAMAGES ARISING FROM OR RELATING TO ANY BREACH OF THIS AGREEMENT, REGARDLESS OF ANY NOTICE OF THE POSSIBILITY OF SUCH DAMAGES. NOTWITHSTANDING THE FOREGOING, NOTHING IN THIS SECTION 11.4 IS INTENDED TO OR SHALL LIMIT OR RESTRICT THE INDEMNIFICATION RIGHTS OR OBLIGATIONS OF ANY PARTY UNDER SECTION 11.1 or 11.2, OR DAMAGES AVAILABLE FOR A PARTY'S BREACH OF CONFIDENTIALITY OBLIGATIONS UNDER ARTICLE 12.

11.5 Insurance. Aimmune shall procure and maintain insurance, including clinical trials insurance and product liability insurance, adequate to cover its obligations hereunder and which is consistent with normal business practices of prudent companies similarly situated at all times during which the Product is being clinically tested in human subjects or commercially distributed or sold by Aimmune pursuant to this Agreement; provided, that any such clinical trials insurance coverage shall, prior to the First Commercial Sale of a Product, in no event be less than [***] Dollars ($[***]) per loss occurrence, and product liability insurance coverage shall, after such First Commercial Sale, in no event be less than [***] Dollars ($[***]) per loss occurrence. It is understood that such insurance shall not be construed to create a limit of Aimmune's liability with respect to its indemnification obligations under this ARTICLE 11. Aimmune shall provide Xencor with written evidence of such insurance prior to commencement of this Agreement and upon expiration of any one coverage. Aimmune shall provide Xencor with written notice at least [***] ([***]) days prior to the cancellation, nonrenewal or material change in such insurance or self-insurance which materially adversely affects the rights of Xencor hereunder.

ARTICLE 12 CONFIDENTIALITY

12.1 Confidential Information.

12.1.1 The Parties agree that during the Term, and for a period of [***] ([***]) years thereafter, a Party receiving Confidential Information of the other Party will (X) maintain in confidence such Confidential Information to the same extent such Party maintains its own proprietary information of similar kind and value, and, in any event, no less than a reasonable standard of care, (Y) not disclose such Confidential Information to any Third Party without the prior written consent of the other Party, except as otherwise expressly permitted below, and (Z) not use such Confidential Information for any purpose except those permitted by this Agreement. 36

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As used herein, Confidential Information means all Know-How and other information and materials received by either Party from the other Party or its Affiliates pursuant to this Agreement. The foregoing obligations and the other obligations set forth in this Section 12.1 shall not apply with respect to any portion of such Confidential Information which:

(a) is publicly disclosed by the disclosing Party, either before or after it becomes known to the receiving Party;

(b) was known to the receiving Party or any or its Affiliates, without any obligation to keep it confidential, prior to when it was received from the disclosing Party;

(c) is subsequently disclosed to the receiving Party or any of its Affiliates by a Third Party that is lawfully in possession thereof without obligation to keep it confidential;

(d) has been published by a Third Party or otherwise enters the public domain through no fault of the receiving Party or any of its Affiliates in breach of this Agreement; or

(e) has been independently developed or acquired by the receiving Party or any of its Affiliates without the aid, application or use of the disclosing Party's Confidential Information.

12.1.2 The receiving Party shall have the right to disclose any Confidential Information provided by the other Party hereunder if, in the reasonable opinion of the receiving Party's legal counsel, such disclosure is necessary to comply with the terms and conditions of this Agreement, or the requirements of any law or rule imposed by the U.S. Securities and Exchange Commission or any securities exchange or other Applicable Law, but only to the extent of such necessity or requirements; and no such disclosure shall cause any such information to cease to be Confidential Information hereunder, except to the extent such disclosure results in a public disclosure of such information. Where reasonably possible, the receiving Party shall notify the disclosing Party of the receiving Party's intent to make such disclosure of Confidential Information pursuant to the preceding sentence sufficiently prior to making such disclosure so as to allow the disclosing Party adequate time to take whatever action the disclosing Party may deem to be appropriate to protect the confidentiality of the Confidential Information.

12.1.3 Except as set forth above, each Party agrees that it shall provide or permit access to Confidential Information of the other Party only to (i) the receiving Party's attorneys, independent accountants and financial advisors for the sole purpose of enabling such attorneys, independent accountants and financial advisors to provide advice to the receiving Party and (ii) the receiving Party's Affiliates, directors, officers, employees, consultants, advisors, actual or potential acquirers and permitted subcontractors, sublicensees and subdistributors, and to the directors, officers, employees, consultants, advisors and permitted subcontractors, actual or potential acquirers, sublicensees and subdistributors of such Affiliates, who have a need to know such Confidential Information to assist the receiving Party with the 37

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activities contemplated or required of it by this Agreement; provided that in each case the Person to whom Confidential Information is being disclosed is subject to obligations of confidentiality and non-use with respect to such Confidential Information substantially similar to the obligations of confidentiality and nonuse of the receiving Party pursuant to this Section 12.1; and provided further, that each Party shall remain responsible for any failure by its attorneys, independent accountants and financial advisors, Affiliates, and its and its Affiliates' respective directors, officers, employees, consultants, advisors, actual or potential acquirers and permitted subcontractors, sublicensees and subdistributors, to treat such Confidential Information as required under this Section 12.1.

For clarity, either Party may disclose without any limitation such Party's U.S. federal income tax treatment and the U.S. federal income tax structure of the transactions relating to such Party that are based on or derived from this Agreement, as well as all materials of any kind (including opinions, other tax analyses, or a complete copy of this Agreement and any amendments thereto) relating to such tax treatment or tax structure, except to the extent that nondisclosure of such matters is reasonably necessary in order to comply with applicable securities laws.

12.1.4 Each Party acknowledges that a Party in breach of any of its obligations under this Section 12.1 shall cause the non-breaching Party irreparable harm, for which monetary damages will be an inadequate remedy. Therefore, notwithstanding anything to the contrary in this Agreement in the event of any such breach, the non-breaching Party shall be entitled, in addition to any other remedy available to it under this Agreement, at law or in equity, to injunctive relief, including an accounting for profits, specific performance of the terms hereof and other equitable relief for such breach, without the posting of bond or other security.

12.2 Publicity. Promptly after the Effective Date, the Parties shall each issue the applicable press release in the form attached hereto as Schedule 12.2, with respect to this Agreement. Subject to the foregoing, any press releases or other public statements or disclosures regarding the subject matter of this Agreement shall be subject to the express prior written consent of each of the Parties; provided that a disclosure shall be permitted without the other Party's consent to the extent that it does not contain information beyond that included in a prior disclosure approved in writing by both Parties. Notwithstanding the foregoing any disclosure which is required by Applicable Law or the rules of the U.S. Securities and Exchange Commission or any securities exchange, as reasonably advised by the disclosing Party's counsel, may be made without the prior consent of the other Party, although, prior to any such legally required disclosure by a Party, such Party shall use reasonable efforts where practicable to give the other Party reasonable notice and an opportunity to comment on the proposed disclosure.

12.3 Securities Filings. In the event either Party proposes to file with the U.S. Securities and Exchange Commission or the securities regulators of any state or other jurisdiction under the Securities Act of 1933, as amended, the Securities Exchange Act of 1934, as amended, or any other applicable securities law a registration statement or any other disclosure document which describes or refers to this Agreement, such Party shall notify the other Party of such intention and shall provide such other Party with a copy of relevant portions of the proposed filing not less than [***] ([***]) Business Days prior to such filing (or such shorter period of time as may be required in the circumstances, and any revisions to such 38

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portions of the proposed filing a reasonable time prior to the filing thereof), and shall use reasonable efforts where practicable to consider such comments to the extent consistent with such Party's disclosure obligations under applicable securities laws or rules of a securities exchange.

12.4 Publications. Except for disclosures permitted under this Agreement, if Xencor, its Affiliates, or its employee(s) or consultant(s) wishes to make a publication or presentation specific to the Product or which otherwise may reasonably contain Know-How, or other intellectual property, of Aimmune, Xencor must receive written approval, not to be unreasonably withheld, conditioned or delayed, from Aimmune at least [***] ([***]) days prior to submission for publication or presentation. If Aimmune, its Affiliates, or its employee(s) or consultant(s) wishes to make a publication specific to the Product or which otherwise may reasonably contain Xencor Technology, Aimmune shall deliver to Xencor a copy of the proposed written publication or an outline of an oral disclosure at least [***] ([***]) days prior to submission for publication or presentation and reasonably consider any comments of Xencor thereon; provided that subject to Sections 12.1 through 12.3, to the extent such publication describes or is specific to Xencor Technology, Aimmune must receive written approval, not to be unreasonably withheld, conditioned or delayed, from Xencor prior to submitting such publication to any Third Party.

12.5 Use of Names. Except as otherwise set forth in this Agreement, neither Party shall use the name of the other Party in relation to this transaction in any public announcement, press release or other public document without the written consent of such other Party, which consent shall not be unreasonably withheld; provided, however, that subject to Section 12.3, either Party may use the name of the other Party in any document filed with any Regulatory Authority or Governmental Authority, including the Securities and Exchange Commission or the rules of any securities exchange.

12.6 Unauthorized Disclosure of Confidential Information. Each Party shall have a response plan in place for any disclosure of Confidential Information that is not authorized or otherwise permitted under this Agreement. Such plan shall include considerations of, among other things, notification, remediation and retrieval. In the event that a Party becomes aware of an unauthorized disclosure of Confidential Information, then such Party shall notify the other Party promptly in writing.

12.7 Prior CDA. As of the Effective Date, the terms of this ARTICLE 12 shall supersede any prior non-disclosure, secrecy or confidentiality agreement between the Parties (or their Affiliates) dealing with the subject of this Agreement, including the Confidentiality Agreement between the Parties dated [***]. Any information disclosed pursuant to any such prior agreement shall be deemed Confidential Information of the applicable Party for purposes of this Agreement, to the extent that such information was deemed to be Proprietary Information under such prior agreement. 39

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ARTICLE 13 TERM AND TERMINATION

13.1 Term. This Agreement shall become effective on the Effective Date and, unless earlier terminated pursuant to this ARTICLE 13, shall remain in effect on a Product-by-Product and country-by-country basis until the expiration of the Royalty Term applicable to such Product and country (the Term). Upon expiration of this Agreement with respect to a Product in a country, the licenses granted to Aimmune pursuant to this Agreement shall continue in full force and effect on a fully-paid basis.

13.2 Termination for Breach. Either Party may, without prejudice to any other remedies available to it at law or in equity, terminate this Agreement upon written notice to the other Party in the event that the other Party (the Breaching Party) shall have materially breached or defaulted in the performance of any of its obligations. The Breaching Party shall have sixty (60) days (thirty (30) days in the event of non-payment) after written notice thereof was provided to the Breaching Party by the non-breaching Party to remedy such default. Unless the Breaching Party has cured any such breach or default prior to the expiration of such sixty (60) day period (thirty (30) day period for non-payment), such termination shall become effective upon receipt of the written notice of termination by the Breaching Party to be given within ten (10) days of the end of such sixty (60) day period (thirty (30) day period for non-payment). Notwithstanding the foregoing, in the event that Aimmune as the Breaching Party has materially breached or defaulted in the performance of any of its payment obligations under this Agreement a third time or more in any three (3) year period, then Xencor shall have the right to terminate this Agreement immediately by providing written notice Aimmune, without Aimmune having opportunity to cure such breach or default.

13.3 Termination as a Result of Bankruptcy. Each Party shall have the right to terminate this Agreement upon written notice as a result of 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 that such termination shall be effective only if such proceeding is not dismissed within ninety (90) days after the filing thereof.

13.4 Termination by Aimmune. Aimmune may terminate this Agreement in its entirety at any time for its convenience upon sixty (60) days' prior written notice to Xencor.

13.5 Termination by Xencor. Without limitation of its rights under this ARTICLE 13, Xencor may also terminate this Agreement in its entirety as applicable, pursuant to the provisions of Section 9.7.

ARTICLE 14 EFFECTS OF EXPIRATION OR TERMINATION

14.1 Licenses. Upon the termination of this Agreement:

14.1.1 all rights and licenses granted to Aimmune hereunder shall immediately terminate and be of no further force and effect and Aimmune shall cease Developing, Commercializing, Manufacturing and Packaging and Labeling such Product in and for all applicable countries; provided, that Aimmune and its Affiliates will be entitled, during the period 40

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ending on the last day of the [***] following the effective date of such termination, to sell any inventory of Product affected by such termination that remains on hand as of the effective date of the termination, so long as Aimmune pays to Xencor all amounts payable hereunder (including milestones) applicable to said subsequent sales, as applicable, in accordance with the terms and conditions set forth in this Agreement and otherwise complies with the terms set forth in this Agreement.

14.1.2 Aimmune hereby grants to Xencor an exclusive license under and with respect to Aimmune Patents, and a non-exclusive license under and with respect to Aimmune Know-How, in each case, where such license is an irrevocable, perpetual, royalty-bearing license, with the right to sublicense, to Develop, Manufacture and Commercialize the Product(s), as the Product(s) exist as of the effective date of such termination, or optimized versions thereof that are Products. For clarity, upon the termination of this Agreement, as consideration for such licenses granted under this Section 14.1.2, Xencor shall [***], and Xencor shall be responsible for [***]; provided further that Xencor shall have the right to terminate such license and forgo paying such royalties at its sole discretion upon written notice to Aimmune.

14.2 Assignments. Upon the termination of this Agreement, Aimmune will promptly, in each case within [***] ([***]) days thereafter:

(a) assign to Xencor, [***], all of Aimmune's right, title and interest in and to any agreements (or portions thereof) between Aimmune and Third Parties that relate to the Development, Commercialization or Manufacture of the Product, where such assignment is permitted without charge to Aimmune or its Affiliates and where Xencor shall assume all future payments due under any agreement assigned pursuant to this subsection;

(b) assign to Xencor, [***], and subject to the execution of a standard trademark license between the Parties prior to such assignment, all of Aimmune's right, title and interest in and to any (i) Promotional Materials, (ii) copyrights and trademarks (including the Product Trademarks and Product Trade Dress), including any goodwill associated therewith, and any registrations and design patents for the foregoing, and (iii) any internet domain name registrations for such trademarks and slogans, all to the extent solely related to the Product; provided, however, in the event Xencor exercises such right to have assigned such Promotional Materials, Aimmune shall grant, and hereby does grant, a royalty-free right and license to any housemarks, trademarks, names and logos of Aimmune contained therein for a period of [***] ([***]) months in order to use such Promotional Materials solely in connection with the Commercialization of the Product;

(c) assign to Xencor, [***], the management and continued performance of any Clinical Trials for the Product ongoing hereunder as of the effective date of such termination in respect of which Xencor shall assume full financial responsibility from and after the effective date of such termination;

(d) transfer to Xencor all of Aimmune's right, title and interest in and to any and all regulatory filings, Regulatory Approvals and other Regulatory Materials for the Product; 41

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(e) transfer to Xencor all of Aimmune's right, title and interest in and to any and all Development-related data and Commercialization Data Controlled by Aimmune for the Product; and

(f) provide a copy of (i) the material tangible embodiments of the foregoing and (ii) any other material books, records, files and documents Controlled by Aimmune solely to the extent related to the Product and which may be redacted to exclude Confidential Information of Aimmune;

provided, however, that to the extent that any agreement or other asset described in this Section 14.2 is not assignable by Aimmune (whether because such agreement or asset is explicitly non-assignable or because the Third Party consent required for such assignment is not obtained), then such agreement or other asset will not be assigned, and upon the request of Xencor, Aimmune will take such steps as may be reasonably necessary to allow Xencor to obtain and to enjoy the benefits of such agreement or other asset. For purposes of clarity, (1) [***] and (2) to the extent Xencor requests [***].

14.3 Disclosure and Delivery. Upon the termination of this Agreement, Aimmune will promptly transfer to Xencor copies of any physical embodiment of any Aimmune Know-How, to the extent then used in connection with the Development or Commercialization of the Product; such transfer shall be effected by the delivery of material documents, to the extent such Aimmune Know-How is embodied in such documents, and to the extent that Aimmune Know-How is not fully embodied in such documents, Aimmune shall make its employees and agents who have knowledge of such Aimmune Know-How in addition to that embodied in documents available to Xencor for interviews, demonstrations and training to effect such transfer in a manner sufficient to enable Xencor to practice such Aimmune Know-How but only in a manner as set out as follows in this Section 14.3. The Aimmune Know- How shall be transferred pursuant to the procedure to transfer Xencor Know-How, Regulatory Materials, and Regulatory Data in Section 2.7 applied mutatis mutandis.

14.4 Disposition of Commercialization Related Materials. Upon the termination of this Agreement, Aimmune will promptly deliver to Xencor in electronic, sortable form (a) a list identifying all wholesalers and other distributors involved in the Commercialization of the Product, will reasonably consider providing customer lists (e.g., purchasers), where permitted under Applicable Law and under applicable agreements with Third Parties, at Xencor's expense, related to the Commercialization of the Product, and (b) all Promotional Materials as well as any items bearing the Product Trademark or Product Trade Dress and/or any trademarks or housemarks otherwise associated with the Product or Xencor.

14.5 Accrued Rights. Expiration or termination this Agreement for any reason will be without prejudice to any rights that will have accrued to the benefit of a Party prior to the effective date of such expiration or termination. Such expiration or termination will not relieve a Party from obligations that are expressly indicated to survive the expiration or termination of this Agreement. 42

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14.6 Survival. Notwithstanding anything to the contrary contained herein, the following provisions shall survive any expiration or termination of this Agreement: Articles: ARTICLE 1 (to the extent necessary to give effect to the other surviving provisions), ARTICLE 4 (solely with respect to remaining inventory of Product that Aimmune continues to sell after the effective date of termination), ARTICLE 7 (with respect to amounts accruing prior to expiration or termination of this Agreement), ARTICLE 11, ARTICLE 12 (for the period specified in Section 12.1.1), ARTICLE 14, ARTICLE 15 and ARTICLE 8 (with respect to amounts accruing prior to expiration or termination of this Agreement) and Sections: 2.2.1, 2.3 (with respect to the applicable Party being responsible for its Affiliates or Sublicensee, and the waiver), 2.4, 9.1, 10.2 (for [***] after the effective date of termination or expiration), 10.3 (for [***] after the effective date of termination or expiration), 10.4, and 10.5. Except as set forth in this ARTICLE 14 or otherwise expressly set forth herein, upon expiration or termination of this Agreement all other rights and obligations of the Parties shall cease.

14.7 Rights in Bankruptcy. All rights and licenses granted under or pursuant to this Agreement by Xencor and Aimmune are, and shall otherwise be deemed to be, for purposes of Section 365(n) of the U.S. Bankruptcy Code, licenses of right to intellectual property as defined under Section 101 of the U.S. Bankruptcy Code. The Parties agree that each Party, as licensee of certain rights under this Agreement, shall retain and may fully exercise all of its rights and elections under the U.S. Bankruptcy Code. The Parties further agree that, in the event of the commencement of a bankruptcy proceeding by or against a Party (such Party, the Bankrupt Party) under the U.S. Bankruptcy Code, (a) the other Party shall be entitled to a complete duplicate of (or complete access to, as appropriate) any intellectual property licensed to such other Party and all embodiments of such intellectual property, which, if not already in such other Party's possession, shall be promptly delivered to it (x) upon any such commencement of a bankruptcy proceeding upon such other Party's written request therefore, unless the Bankrupt Party elects to continue to perform all of its obligations under this Agreement or (y) if not delivered under clause (x), following the rejection of this Agreement by the Bankrupt Party upon written request therefore by the other Party and (b) the Bankrupt Party shall not unreasonably interfere with the other Party's rights to intellectual property and all embodiments of intellectual property, and shall assist and not unreasonably interfere with the other Party in obtaining intellectual property and all embodiments of intellectual property from another entity. The embodiments of intellectual property includes all tangible, intangible, electronic or other embodiments of rights and licenses hereunder, including all compounds and products embodying intellectual property, Products, filings with Regulatory Authorities and related rights and Xencor Know-How in the case that Xencor is the Bankrupt Party and Aimmune Know-How in the case Aimmune is the Bankrupt Party.

ARTICLE 15 MISCELLANEOUS

15.1 Disputes. The Parties recognize that, from time to time, disputes, controversies or claim may arise which stem from or are related to a Party's respective rights or obligations under this Agreement or a Party's actual or alleged breach of this Agreement (a Dispute). It is the desire of the Parties to establish procedures to facilitate the resolution of Disputes arising under this Agreement in an expedient manner by mutual cooperation and without resort to 43

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arbitration or litigation. To accomplish this objective, the Parties agree to follow the procedures set forth in this Section 15.1 if and when a Dispute arises under this Agreement. If the Parties are unable to resolve any Dispute within [***] ([***]) days after such Dispute is submitted to it, either Party may, by written notice to the other Party, have such Dispute referred to Designated Officers of each Party for attempted resolution. In the event the Designated Officers or their delegates are not able to resolve such Dispute within such [***] ([***]) day period after receipt of written notice, then each Party is free to pursue any remedy at law or in equity available to such Party consistent with Section 15.13.

15.2 Entire Agreement; Amendment. This Agreement, together with the Schedules and Exhibits hereto, contains the entire understanding of the Parties with respect to the subject matter hereof. Any other express or implied agreements and understandings, negotiations, writings and commitments, either oral or written, in respect to the subject matter hereof are superseded by the terms of this Agreement. The Schedules and Exhibits to this Agreement are incorporated herein by reference and shall be deemed a part of this Agreement. This Agreement may be amended, or any term hereof modified, only by a written instrument duly executed by authorized representatives of each of the Parties.

15.3 Force Majeure. No Party shall be liable for any failure to perform, or be considered in breach of, its obligations under this Agreement (other than obligations to make payments of money) to the extent such performance has been delayed, interfered with or prevented by an event of Force Majeure, and the obligations of such Party under this Agreement (other than obligations to make payments of money) whose performance is affected by Force Majeure shall be suspended during, but not longer than, the continuance of the event of Force Majeure. Any Party that experiences an event of Force Majeure shall provide prompt notice of such event to the other Party, including and an estimate of the likely period of time during which its performance will be affected, and shall use reasonable efforts to remove the condition constituting Force Majeure. In the event of a prolonged condition of Force Majeure that makes it unreasonable to continue to perform other activities then being performed by the Parties and their Affiliates pursuant to this Agreement, the Parties shall consult directly as to whether they should appropriately scale back their respective activities in order to avoid waste or inappropriate usage of resources under the circumstances.

15.4 Notices. Any notice required or permitted to be given under this Agreement shall be in writing, shall specifically refer to this Agreement and shall be deemed to have been sufficiently given for all purposes if; mailed by first class certified or registered mail, postage prepaid (which notice shall be effective [***] ([***]) Business Days [***]); express delivery service (which notice shall be effective on the first Business Day after delivery to such service); or personally delivered to the appropriate addresses (which notice shall be effective upon delivery to such addresses) set forth below or to such other addresses or numbers for a Party as such Party may inform the other Party by giving [***] ([***]) Business Days' prior written notice: If to Xencor: Xencor, Inc. 111 West Lemon Avenue Monrovia, CA 91016 Attention: General Counsel 44

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With copies to (which shall not constitute notice): Xencor, Inc. 111 West Lemon Avenue Monrovia, CA 91016 Attention: Chief Executive Officer

Morgan, Lewis & Bockius LLP 1 Market Street, Spear Street Tower San Francisco, CA 94105 Attention: Benjamin Pensak

If to Aimmune: Aimmune Therapeutics, Inc. 8000 Marina Boulevard Suite 300 Brisbane, CA 94005 Attention: General Counsel

With copies to (which shall not constitute notice): Latham & Watkins LLP 140 Scott Drive Menlo Park, CA 94025 Attention: Patrick Pohlen Judith Hasko

15.5 Maintenance of Records. Aimmune shall keep and maintain all records required by Applicable Law or regulation (including records for intellectual property protection purposes) with respect to the Antibody and Product and shall, upon Xencor's written request, allow Xencor reasonable access to make copies of such records, at Xencor's expense. Aimmune must maintain such records for the greater of [***] ([***]) years or the time period required by Applicable Law.

15.6 Assignment. Neither Party may assign or transfer this Agreement or any rights or obligations hereunder without the prior written consent of the other Party, except that a Party may make such an assignment or transfer without the other Party's written consent to (a) any of its Affiliates, in whole or in part, or (b) any Third Party in connection with (i) the acquisition of such Party by or merger or consolidation of such Party with another entity or (ii) a merger, consolidation, sale of stock, sale of all or substantially all of such Party's assets or other similar transaction in which such Third Party either becomes the owner of all or substantially all of the business and assets of (y) such Party or (z) that portion of such Party's business or business unit relating to this Agreement. Any permitted successor or assignee of rights or obligations hereunder shall, in a writing delivered to the other Party, expressly assume the performance of such rights or obligations. Except as set forth in the immediately preceding sentence, in the event of an assignment or transfer as permitted above in this Section 15.6, the assigning or transferring Party shall remain responsible (jointly and severally) with such Affiliate for the 45

Source: AIMMUNE THERAPEUTICS, INC., 8-K, 2/5/2020





performance of such assigned or transferred obligations. Any assignment or transfer, or attempted assignment or transfer, by either Party in violation of the terms of this Section 15.6 shall be null and void and of no legal effect. This Agreement shall be binding on, and inure to the benefit of, each Party, its successors and permitted assigns. Notwithstanding anything to the contrary in this Agreement, in the event of any permitted assignment, the intellectual property rights of the acquiring party and its Affiliates (if other than one of the Parties to this Agreement) shall not be included in the technology licensed to the other Party hereunder to the extent held by such acquirer (or its Affiliates) prior to such transaction, or to the extent such technology is developed outside the scope of activities conducted with respect to the Antibody or Products, unless the acquired Party practices such intellectual property rights of the acquirer in connection with its performance of activities pursuant to this Agreement.

15.7 Offset Rights. Notwithstanding anything to the contrary in this Agreement, neither Party may, at any time or for any reason, offset any payments due to the other Party or its Affiliates under this Agreement.

15.8 Severability. If any one (1) or more of the provisions of this Agreement is held to be invalid or unenforceable by any court of competent jurisdiction from which no appeal can be or is taken, such provision shall be considered severed from this Agreement and shall not serve to invalidate any remaining provisions hereof. The Parties shall make a good faith effort to replace any invalid or unenforceable provision with a valid and enforceable one such that the objectives contemplated by the Parties when entering this Agreement may be realized.

15.9 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 Applicable Law.

15.10 Ambiguities; No Presumption. Each of the Parties acknowledges and agrees that this Agreement has been diligently reviewed by and negotiated by and between them, that in such negotiations each of them has been represented by competent counsel and that the final agreement contained herein, including the language whereby it has been expressed, represents the joint efforts of the Parties hereto and their counsel. Accordingly, in interpreting this Agreement or any provision hereof, no presumption shall apply against any Party hereto as being responsible for the wording or drafting of this Agreement or any such provision, and ambiguities, if any, in this Agreement shall not be construed against any Party, irrespective of which Party may be deemed to have authored the ambiguous provision.

15.11 Headings. The headings for each Article and Section in this Agreement have been inserted for convenience of reference only and are not intended to limit or expand on the meaning of the language contained in the particular article or section.

15.12 Interpretation. Except where the context expressly requires otherwise, (a) the use of any gender herein shall be deemed to encompass references to either or both genders, and the use of the singular shall be deemed to include the plural (and vice versa), (b) the words include, includes and including shall be deemed to be followed by the phrase without limitation, (c) the word will shall be construed to have the same meaning and effect as the 46

Source: AIMMUNE THERAPEUTICS, INC., 8-K, 2/5/2020





word shall, (d) any definition of or reference to any agreement, instrument or other document herein shall be construed as referring to such agreement, instrument or other document as from time to time amended, supplemented or otherwise modified (subject to any restrictions on such amendments, supplements or modifications set forth herein), (e) any reference herein to any person shall be construed to include the person's successors and assigns, (f) the words herein, hereof and hereunder, and words of similar import, shall be construed to refer to this Agreement in its entirety and not to any particular provision hereof, (g) all references herein to Articles, Sections, Exhibits or Schedules shall be construed to refer to Articles, Sections, Exhibits or Schedules of this Agreement, and references to this Agreement include all Exhibits and Schedules hereto, (h) the word notice means notice in writing (whether or not specifically stated) and shall include notices, consents, approvals and other written communications contemplated under this Agreement, (i) provisions that require that a Party or the Parties hereunder to agree, consent or approve or the like shall require that such agreement, consent or approval be specific and in writing, whether by written agreement, letter, approved minutes or otherwise (but excluding instant messaging), (j) references to any specific law, rule or regulation, or article, section or other division thereof, shall be deemed to include the then-current amendments thereto or any replacement or successor law, rule or regulation thereof, and (k) the term or shall be interpreted in the inclusive sense commonly associated with the term and/or.

15.13 Governing Law and Equitable Relief.

15.13.1 Governing Law. This Agreement shall be governed by and construed in accordance with the internal laws of the State of California applicable to agreements made and to be performed entirely within such state, without regard to the conflicts of law principles of such state; provided that any matters relating to the construction or effect of any Patent will be governed by the patent laws of the relevant jurisdiction in which such Patent is granted. This Agreement was prepared in the English language, which language shall govern the interpretation of, and any dispute regarding, the terms of this Agreement.

15.13.2 Equitable Relief. Notwithstanding anything in this Agreement to the contrary, each Party shall have the right to seek injunctive or other equitable relief from a court of competent jurisdiction that may be necessary to avoid irreparable harm or to maintain the status quo.

15.13.3 Jurisdiction. Each Party (a) irrevocably submits to the exclusive jurisdiction of any United States District Court in California (the Court), for purposes of any action, suit or other proceeding arising out of this Agreement, (b) agrees not to raise any objection at any time to the laying or maintaining of the venue of any such action, suit or proceeding in any of such Court, and (c) irrevocably waives any claim that such action, suit or other proceeding has been brought in an inconvenient forum and further irrevocably waives the right to object, with respect to such action, suit or other proceeding, that such Court does not have any jurisdiction over such Party. Each Party further agrees that service or any process, summons, notice or document by U.S. registered mail to such Party's notice address provided for in this Agreement shall be effective service of process for any action, suit or proceeding in California with respect to any matters to which it has submitted to jurisdiction in this Section 47

Source: AIMMUNE THERAPEUTICS, INC., 8-K, 2/5/2020





15.13.3. Notwithstanding the forgoing, nothing contained in this Agreement will deny any Party the right to seek injunctive relief or other equitable relief from a court of competent jurisdiction applying the laws of the court in the context of a bona fide emergency or prospective irreparable harm, and such an action may be filed and maintained notwithstanding any other ongoing proceeding.

15.13.4 No Waiver. Any delay in enforcing a Party's rights under this Agreement or any waiver as to a particular default or other matter shall not constitute a waiver of such Party's rights to the future enforcement of its rights under this Agreement, except with respect to an express written and signed waiver relating to a particular matter for a particular period of time.

15.14 No Third Party Beneficiaries. No person or entity other than Aimmune, Xencor and their respective Affiliates, successors and permitted assignees hereunder, shall be deemed an intended beneficiary hereunder or have any right to enforce any obligation of this Agreement.

15.15 Independent Contractors. It is expressly agreed that Aimmune and Xencor shall be independent contractors and that the relationship between Aimmune and Xencor shall not constitute a partnership, joint venture or agency. Neither Aimmune nor Xencor 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.

15.16 Counterparts; Facsimile Signatures. This Agreement may be executed in three (3) or more counterparts, each of which shall be deemed an original, but all of which together shall constitute one (1) and the same instrument. This Agreement may be executed by delivery of electronically scanned copies of original signatures delivered by facsimile or electronic mail, and such signatures shall be deemed to bind each Party as if they were original signatures.

[No Further Text on This Page] 48

Source: AIMMUNE THERAPEUTICS, INC., 8-K, 2/5/2020





IN WITNESS WHEREOF, the Parties have executed this Agreement by their duly authorized representatives as of the date first written above. AIMMUNE THERAPEUTICS, INC. XENCOR, INC.

By: /s/ Jayson Dallas, M.D By: /s/ Bassil Dahiyat, Ph.D.

Name: Jayson Dallas, M.D Name: Bassil Dahiyat, Ph.D.

Title: President & CEO Title: President & CEO 49

Source: AIMMUNE THERAPEUTICS, INC., 8-K, 2/5/2020





Schedule 1.10 Antibody

Omitted pursuant to Regulation S-K, Item 601(a)(5) 50

Source: AIMMUNE THERAPEUTICS, INC., 8-K, 2/5/2020





Schedule 1.79 Xencor General Patents

Omitted pursuant to Regulation S-K, Item 601(a)(5) 51

Source: AIMMUNE THERAPEUTICS, INC., 8-K, 2/5/2020





Schedule 1.81 Xencor Product Specific Patents

Omitted pursuant to Regulation S-K, Item 601(a)(5) 52

Source: AIMMUNE THERAPEUTICS, INC., 8-K, 2/5/2020





Schedule 2.7 Xencor Know-How, Regulatory Materials, and Regulatory Data

Omitted pursuant to Regulation S-K, Item 601(a)(5) 53

Source: AIMMUNE THERAPEUTICS, INC., 8-K, 2/5/2020





Schedule 6.1 Initial Product Supply

Omitted pursuant to Regulation S-K, Item 601(a)(5) 54

Source: AIMMUNE THERAPEUTICS, INC., 8-K, 2/5/2020





Schedule 10.2.6 Exceptions

Omitted pursuant to Regulation S-K, Item 601(a)(5) 55

Source: AIMMUNE THERAPEUTICS, INC., 8-K, 2/5/2020





Schedule 12.2 Initial Press Release 56

Source: AIMMUNE THERAPEUTICS, INC., 8-K, 2/5/2020





Distribution on Wednesday, 2/5 @ 8:01 am ET

FOR IMMEDIATE RELEASE

Aimmune Licenses Exclusive Worldwide Rights to Xencor's XmAb®7195 for the Development of Next-Generation Food Allergy Treatments

BRISBANE, Calif. - February 5, 2020 - Aimmune Therapeutics, Inc. (Nasdaq: AIMT), a biopharmaceutical company developing treatments for potentially life-threatening food allergies, today announced it has obtained an exclusive worldwide license to develop and commercialize the investigational humanized monoclonal antibody XmAb®7195 from Xencor, Inc.

XmAb7195, which has been renamed AIMab7195, was originally developed by Xencor for the treatment of allergic asthma. It uses three distinct mechanisms of action to reduce blood serum IgE and suppress IgE-producing cells. Aimmune initially plans to develop AIMab7195 as an adjunctive treatment with select Characterized Oral Desensitized ImmunoTherapy (CODIT™) programs, including PALFORZIA™ , to explore treatment outcomes in patients with food allergies.

As we look to the future of food allergy treatments, we are excited to explore the potential of oral immunotherapy to achieve greater levels of desensitization - and perhaps even remission - when combined with adjunctive biologics that target immune pathways, said Jayson Dallas, M.D., President and CEO of Aimmune. In-licensing AIMab7195 demonstrates our commitment to enriching our pipeline and strengthening Aimmune's global leadership in the evolving therapeutic landscape of food allergy treatments.

Aimmune's focus, clinical success and regulatory expertise in food allergy demonstrate their capability to advance AIMab7195 with highly complementary CODIT pipeline programs to create new options for people living with food allergy, said Bassil Dahiyat, Ph.D., President and CEO of Xencor. AIMab7195 is designed to reduce levels of IgE, a key mediator of allergic response, and there is strong scientific rationale that this reduction would synergize with the activity of desensitization therapies.

Under the terms of the agreement, Aimmune will make an upfront payment to Xencor of $5 million in cash and $5 million in equity, equivalent to 156,238 newly issued shares of Aimmune common stock at $32.0025/share. Xencor also is eligible to receive up to $385 million based on the achievement of certain clinical development, regulatory and commercialization milestones — beginning with the initiation of a Phase 2 clinical trial — and is eligible to receive a high single-digit to mid-teen percentage of royalties upon commercialization of AIMab7195. Aimmune will be solely responsible for costs related to the development of AIMab7195 and plans to provide a development plan in the coming months.

About AIMab7195 (formerly XmAb®7195)

AIMab7195 is an anti-IgE monoclonal antibody with enhanced binding to the Fc gamma receptor IIb (FcyRIIb). IgE recognizes and interacts with allergens and, as a result, can activate immune cells, such as mast cells and basophils, that drive an allergic response

Source: AIMMUNE THERAPEUTICS, INC., 8-K, 2/5/2020





in patients. AIMab7195 is designed to clear IgE rapidly from circulation, to prevent the production of IgE by preventing the activation of IgE-positive B cells, and to block IgE from interacting with its receptor on immune cells. AIMab7195 has been evaluated in two Phase 1 studies that enrolled more than 100 healthy volunteers and patients with allergy and atopic disease.

About Aimmune

Aimmune Therapeutics, Inc. is a biopharmaceutical company that aspires to become the global leader in developing curative therapies and solutions for patients with food allergies. With a mission to improve the lives of people with food allergies, Aimmune is developing and commercializing oral treatments for potentially life-threatening food allergies. The Company's Characterized Oral Desensitization ImmunoTherapy (CODIT™) approach is intended to provide meaningful levels of protection against allergic reactions resulting from accidental exposure to food allergens by desensitizing patients with defined, precise amounts of key allergens. Aimmune has one FDA-approved medicine for peanut allergy and other investigational therapies in development to treat other food allergies. For more information, please visit www.aimmune.com.

Forward-Looking Statements

Statements contained in this press release regarding matters that are not historical facts are forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995. Because such statements are subject to risks and uncertainties, actual results may differ materially from those expressed or implied by such forward-looking statements. Such statements include, but are not limited to, statements regarding: Aimmune's expectations regarding the potential benefits of AIMab7195; and Aimmune's expectations regarding potential applications of the CODIT™  approach to treating life-threatening food allergies. Risks and uncertainties that contribute to the uncertain nature of the forward-looking statements include: the expectation that Aimmune will need additional funds to finance its operations; Aimmune's dependence on the success of PALFORZIA; Aimmune's reliance on third parties for the manufacture of AIMab7195, PALFORZIA and other product candidates; possible regulatory developments in the United States and foreign countries; and Aimmune's ability to attract and retain senior management personnel. These and other risks and uncertainties are described more fully in Aimmune's most recent filings with the Securities and Exchange Commission, including its Quarterly Report on Form 10-Q for the quarter ended September 30, 2019. All forward-looking statements contained in this press release speak only as of the date on which they were made. Aimmune undertakes no obligation to update such statements to reflect events that occur or circumstances that exist after the date on which they were made.

This press release concerns PALFORZIA (AR101), which has been approved for marketing by the FDA in the United States and has not been approved for marketing by the EMA or Swissmedic. AR101 in Europe is currently limited to investigational use, and no representation is made as to its safety or effectiveness for the purposes for which it is being investigated.

Source: AIMMUNE THERAPEUTICS, INC., 8-K, 2/5/2020





AIMab7195 T M, PALFORZIA™ , AIMMUNE™ , AIMMUNE THERAPEUTICS™  and CODIT™  are trademarks of Aimmune Therapeutics, Inc

Xencor® and XmAb® are registered trademarks of Xencor, Inc.

###

Contacts: Investors: DeDe Sheel (917) 834-1494 dsheel@aimmune.com

Media: Julie Normart (559) 974-3245 jnormart@w2ogroup.com

Lauren Barbiero (646) 564-2156 lbarbiero@w2ogroup.com

Source: AIMMUNE THERAPEUTICS, INC., 8-K, 2/5/2020





Aimmune Licenses Exclusive Worldwide Rights to Xencor's XmAb®7195 for the Development of Next-Generation Food Allergy Treatments

MONROVIA, Calif. - February 5, 2020 - Xencor, Inc. (NASDAQ:XNCR), a clinical-stage biopharmaceutical company developing engineered monoclonal antibodies for the treatment of cancer and autoimmune diseases, announced it has granted an exclusive worldwide license to develop and commercialize the investigational humanized monoclonal antibody XmAb®7195 to Aimmune Therapeutics, Inc.

XmAb7195, which has been renamed AIMab7195, was originally developed by Xencor for the treatment of allergic asthma. It uses three distinct mechanisms of action to reduce blood serum IgE and suppress IgE-producing cells. Aimmune initially plans to develop AIMab7195 as an adjunctive treatment with select Characterized Oral Desensitized ImmunoTherapy (CODIT™) programs, including PALFORZIA™ , to explore treatment outcomes in patients with food allergies.

As we look to the future of food allergy treatments, we are excited to explore the potential of oral immunotherapy to achieve greater levels of desensitization - and perhaps even remission - when combined with adjunctive biologics that target immune pathways, said Jayson Dallas, M.D., president and CEO of Aimmune. In-licensing AIMab7195 demonstrates our commitment to enriching our pipeline and strengthening Aimmune's global leadership in the evolving therapeutic landscape of food allergy treatments.

Aimmune's focus, clinical success and regulatory expertise in food allergy demonstrate their capability to advance AIMab7195 with highly complementary CODIT pipeline programs to create new options for people living with food allergy, said Bassil Dahiyat, Ph.D., President and CEO of Xencor. AIMab7195 is designed to reduce levels of IgE, a key mediator of allergic response, and there is strong scientific rationale that this reduction would synergize with the activity of desensitization therapies.

Under the terms of the agreement, Aimmune will make an upfront payment to Xencor of $5 million in cash and $5 million in equity, equivalent to 156,238 newly issued shares of Aimmune common stock at $32.0025/share, the seven-day volume weighted average price. Xencor also is eligible to receive up to $385 million based on the achievement of certain clinical development, regulatory and commercialization milestones - beginning with the initiation of a Phase 2 clinical trial - and is eligible to receive a high single-digit to mid-teen percentage of royalties upon commercialization of AIMab7195. Aimmune will be solely responsible for costs related to the development of AIMab7195 and plans to provide a development plan in the coming months.

About AIMab7195 (formerly XmAb®7195)

AIMab7195 is an anti-IgE monoclonal antibody with enhanced binding to the Fc gamma receptor IIb (FcyRIIb). IgE recognizes and interacts with allergens and, as a result, can activate immune cells, such as mast cells and basophils, that drive an allergic response in patients. AIMab7195 is designed to clear IgE rapidly from circulation, to prevent the production of IgE by preventing the activation of IgE-positive B cells, and to block IgE from interacting with its receptor on immune cells. AIMab7195 has been evaluated in two Phase 1 studies that enrolled more than 100 healthy volunteers and patients with allergy and atopic disease.

Source: AIMMUNE THERAPEUTICS, INC., 8-K, 2/5/2020





About Xencor, Inc.

Xencor is a clinical-stage biopharmaceutical company developing engineered monoclonal antibodies for the treatment of cancer and autoimmune diseases. Currently, 15 candidates engineered with Xencor's XmAb® technology are in clinical development internally and with partners. Xencor's XmAb antibody engineering technology enables small changes to the structure of monoclonal antibodies resulting in new mechanisms of therapeutic action. For more information, please visit www.xencor.com.

Forward-Looking Statements

Statements contained in this press release regarding matters that are not historical facts are forward-looking statements within the meaning of applicable securities laws, including, but not limited to, the quotations from the chief executive officers of Xencor and Aimmune and any expectations relating to the potential benefits of AIMab7195; its clinical development, synergies with CODIT™  programs and efficacy; regulatory approval; or commercialization. Such statements involve known and unknown risks, uncertainties and other factors that may cause actual results, performance or achievements and the timing of events to be materially different from those implied by such statements, and therefore these statements should not be read as guarantees of future performance or results. Such risks include, without limitation, the risks associated with the process of discovering, developing, manufacturing and commercializing drugs that are safe and effective for use as human therapeutics and other risks described in Xencor's public securities filings. For a discussion of these and other factors, please refer to Xencor's annual report on Form 10-K for the year ended December 31, 2018 as well as Xencor's subsequent filings with the Securities and Exchange Commission. All forward-looking statements are based on Xencor's current information and belief as well as assumptions made by Xencor. You are cautioned not to place undue reliance on these forward-looking statements, which speak only as of the date hereof. This caution is made under the safe harbor provisions of the Private Securities Litigation Reform Act of 1995. All forward-looking statements are qualified in their entirety by this cautionary statement and Xencor undertakes no obligation to revise or update this press release to reflect events or circumstances after the date hereof, except as required by law.

AIMab7195™ , PALFORZIA™ , AIMMUNE™ , AIMMUNE THERAPEUTICS™  and CODIT™  are trademarks of Aimmune Therapeutics, Inc

Xencor® and XmAb® are registered trademarks of Xencor, Inc.

Contacts

Charles Liles 626-737-8118 cliles@xencor.com

Media Contact Jason I. Spark Canale Communications 619-849-6005 jason@canalecomm.com

Source: AIMMUNE THERAPEUTICS, INC., 8-K, 2/5/2020
Example Output: Highlight the parts (if any) of this contract related to Insurance that should be reviewed by a lawyer. Details: Is there a requirement for insurance that must be maintained by one party for the benefit of the counterparty?

Example Input: [LOGO]

SECOND AMENDMENT TO CO-BRANDING AGREEMENT

THIS SECOND AMENDMENT TO CO-BRANDING AGREEMENT (this Amendment) is made and entered into, effective for all purposes and in all respects as of the 23rd day of February, 1998, by and between PC QUOTE, INC., with its principal place of business at 300 South Wacker Drive, Chicago, Illinois 60605 (PCQ) and A.B. Watley, Inc., with its principal place of business at 33 West 17th Street, New York, New York 10011 (ABW).

WHEREAS, PCQ and ABW have executed that certain Co-Branding Agreement dated October 11, 1996, as amended on December 10, 1996 (as so amended, the Agreement);

WHEREAS, the parties hereto desire to further amend the Agreement to modify the provisions of the Agreement regarding [***] of the term thereof; and

WHEREAS, the parties hereto desire to set forth herein the terms and conditions of their agreements and understandings with respect to the foregoing.

NOW, THEREFORE, in consideration of the foregoing, of the mutual promises for the parties contained herein and of other good valuable consideration, the receipt and sufficiency of which are hereby acknowledged, the parties hereto, intending legally to be bound, hereby covenant and agree as follows:

1. The preamble hereto is incorporated herein and, by this reference, is made a substantive part hereof.

2. The text of Section 2. A. and B. of the Agreement is hereby deleted in its entirety and the following language is inserted in its stead:

[***]

3. To the extent, if any, that provision of this Agreement conflicts with or differs from any provision of the Agreement, such provision of this Second Amendment shall prevail and govern for all purposes and in all respects.

4. Except as modified hereby, the Agreement and its terms and provisions are hereby ratified and confirmed for all purposes and in all respects.

5. This Second Amendment may be executed in several counterparts, each of which shall be deemed an original but all of which collectively shall constitute the same instrument.

Source: PCQUOTE COM INC, S-1/A, 7/21/1999





IN WITNESS WHEREOF, the undersigned parties have hereunto affixed their signatures and seals as of the day and year first above written.

PC QUOTE, INC.

By:  /s/  Scott Clyde ------------------------ Name: Scott Clyde ---------------------- Title:  VP --------------------

A. B. WATLEY, INC.

By:  /s/  Robert Malin ------------------------ Name: Robert Malin ---------------------- Title:  President --------------------

-2-

Source: PCQUOTE COM INC, S-1/A, 7/21/1999
Example Output:
Highlight the parts (if any) of this contract related to Effective Date that should be reviewed by a lawyer. Details: The date when the contract is effective