8. Commitments and Contingencies

Operating Leases

The Company leases office and laboratory space in Monrovia, CA through June 2020. In July 2017, the Company entered into an amended lease agreement for additional space in the same building. The amended lease has a 64-month term with an option to renew for an additional five years. The lease terms for the original space were not amended.

The Company also leases office space in San Diego, CA through June 2020. In June 2017, the Company entered into a new lease agreement for additional office space. The new lease has a 61-month term beginning from the date of occupancy and includes an option to renew for an additional five years. At September 30, 2018 the future minimum lease payments under the operating leases were as follows:



Years ending December 31,
For the remainder of the fiscal year	$	471
2019		2,752
2020		2,404
2021		1,980
2022		1,406

Rent expense for the nine months ended September 30, 2018 and 2017 was $1.9 million and $1.1 million respectively.

Commitments

From time to time, the Company may be subject to various litigation and related matters arising in the ordinary course of business. The Company does not believe it is currently subject to any material matters where there is at least a reasonable possibility that a material loss may be incurred.

We are obligated to make future payments to third parties under in‑license agreements, including sublicense fees, royalties, and payments that become due and payable on the achievement of certain development and commercialization milestones. As the amount and timing of sublicense fees and the achievement and timing of these milestones are not probable and estimable, such commitments have not been included on our balance sheet. We have also entered into agreements with third-party vendors which will require us to make future payments upon the delivery of goods and services in future periods.