License Grants to Regeneron. Subject to the terms and conditions of this Agreement, CytomX hereby grants and shall grant to Regeneron an exclusive (even as to CytomX and its Affiliates, except as expressly set forth in this Agreement and subject to CytomX and its Affiliates retaining the non-exclusive rights reasonably necessary or useful to perform CytomX’s obligations under this Agreement and any Work Plan) royalty-bearing, sublicensable (but only in accordance with [Section 4.2]), license under the CytomX IP to Exploit Licensed Products in the Licensed Field in the Territory during the Term. Notwithstanding the foregoing, the CytomX Know-How shall be sublicensable only in connection with the rights of Regeneron with respect to Products and not with respect to any other products or services. Notwithstanding anything to the contrary in [Section 4.1.1] or elsewhere in this Agreement, ​.

Development, Manufacturing and Commercialization. Regeneron shall have the right to grant one or more sublicenses under the licenses granted to Regeneron under Section 4.1, in full or in part, by means of written agreement to Affiliates or Third Parties (with the right to sublicense through multiple tiers), without the prior written consent of CytomX, for the performance of Regeneron’s Development, Manufacturing and Commercialization activities related to Licensed Products or for the performance of any other activities related to the Exploitation of a Licensed Product. As a condition precedent to and requirement of any such sublicense: # Regeneron shall furnish a redacted copy of such sublicense agreement to CytomX; # any such permitted sublicense shall be consistent with and subject to the terms and conditions of this Agreement (including for the avoidance of doubt, that if sales by such Sublicensee are included in Net Sales hereunder, such Sublicensee shall permit audit rights with respect to its reporting of Net Sales that are consistent with those given by Regeneron hereunder with respect to its sales included in Net Sales); # Regeneron will continue to be responsible for full performance of its obligations under this Agreement and will be responsible for all actions of such Sublicensee as if such Sublicensee were Regeneron hereunder; and # Regeneron’s grant of any sublicense will not relieve Regeneron or its Affiliates from any of its obligations under this Agreement.

Data License Grant to CytomX. Subject to the terms and conditions of this Agreement, Regeneron hereby grants CytomX a non-exclusive, royalty-free license, under Regeneron’s interest in the Preclinical Research Data (but excluding any data solely related to Regeneron Background Technology), as set forth in [Section 2.4].

Preclinical Research Licenses. On a Collaboration Program-by-Collaboration Program basis, during the applicable Preclinical Research Term, subject to the terms and conditions of this Agreement, Regeneron hereby grants and shall grant to CytomX a non-exclusive, worldwide, royalty-free license under the Regeneron IP solely as necessary for CytomX to conduct the Preclinical Research set forth in each Work Plan under this Agreement during the Program Selection Period and the Product Selection Period. On a Collaboration Program-by-Collaboration Program basis, during the applicable Preclinical Research Term, subject to the terms and conditions of this Agreement, CytomX hereby grants and shall grant Regeneron a non-exclusive, royalty-free license under the CytomX IP that is necessary or reasonably useful for Regeneron to conduct the Preclinical Research and any other Regeneron obligations set forth in each Work Plan under this Agreement during the Term. For clarity, CytomX does not grant to Regeneron any rights under the Tools but CytomX will perform any research requiring the practice of such Tools itself under this Agreement.