On July 11, 2019, Gritstone Oncology, Inc. (the "Company") reported that entered into a First Amendment to License Agreement (the "Amendment"), dated as of July 11, 2019, with MIL 21E, LLC (the "Licensor"), amending that certain License Agreement, dated as of September 6, 2018, by and between the Company and the Licensor (the "License Agreement" and the License Agreement as amended by the Amendment, the "Amended License Agreement") (Filing, 8-K, Gritstone Oncology, JUL 11, 2019, View Source [SID1234550632]). Pursuant to the Amended License Agreement, effective as of September 1, 2019 (the "Effective Date"), the Licensor granted the Company a non-transferable, non-assignable license to use an aggregate total of 14,683 square feet of office and laboratory space located at 21 Erie Street, Cambridge, Massachusetts 02139.

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The term of the original License Agreement commenced on September 1, 2018. The Amended License Agreement will expire on August 31, 2021, unless earlier terminated. Beginning six months after the Effective Date, the Company shall have the right to early terminate the Amended License Agreement upon six months’ prior written notice. In addition, the Licensor may terminate the Amended License Agreement for cause by giving written notice to the Company (subject to a 10 day cure period, except under certain circumstances).

On the Effective Date, the Company prepaid the monthly license fees under the Amended License Agreement through August 31, 2020, as well as certain other fees and deposits totaling $3.5 million in the aggregate, and thereafter shall pay a monthly fee of approximately $279,000. Prior to the Effective Date, the Company paid an aggregate of $1.6 million under the terms of the original License Agreement.

The foregoing descriptions of the License Agreement and the Amendment do not purport to be complete and are subject to, and qualified in their entirety by reference to, the full terms of the License Agreement and the Amendment, copies of which will be filed as an exhibit to the Company’s Quarterly Report on Form 10-Q for the fiscal quarter ending September 30, 2019.