The Company leases its offices and laboratory in Brisbane, California, or the Brisbane Lease, under a ten-year noncancelable lease agreement that ends in October 2031 with a ten-year renewable option. In November 2021, the Company subleased unoccupied space for two years starting from December 2021 for aggregate sublease payments of $3.4 million. The sublease income, while it reduces the rent expense, is not considered in the value of the right-of-use assets or lease liabilities. The Company’s sublease income was $0.6 million and $0.4 million for the three months ended June 30, 2023 and 2022, respectively, and $1.1 million and $0.8 million for the six months ended June 30, 2023 and 2022, respectively.

As of June 30, 2023, the operating lease right-of-use assets were $18.6 million and lease liabilities were $32.0 million on the condensed consolidated balance sheet. The weighted-average remaining lease term is 8.3 years.

The weighted-average incremental borrowing rate used to measure the operating lease liability is 8.4%.

Operating lease costs were $0.5 million for each of the three months ended June 30, 2023 and 2022, and $1.1 million and $1.0 million for the six months ended June 30, 2023 and 2022, respectively. Variable lease payments were $0.4 million and $0.3 million for the three months ended June 30, 2023 and 2022, respectively, and $0.7 million and $0.6 million for the six months ended June 30, 2023 and 2022, respectively.

Future minimum lease payments and related lease liabilities as of June 30, 2023, were as follows:


	(in thousands)
2023 (remaining six months)		1,985
2024		4,893
2025		5,065
2026		5,242
2027 and thereafter		28,025
Total undiscounted lease payments		45,210
Less: Imputed interest		(13,196	)
Total	$	32,014

In the normal course of business, the Company enters into agreements that contain a variety of representations and provide for general indemnification. The Company’s exposure under these agreements is unknown because it involves claims that may be made against the Company in the future. To date, the Company has not paid any claims or been required to defend any action related to its indemnification obligations. As of June 30, 2023, the Company did not have any material indemnification claims that were probable or reasonably possible and consequently has not recorded related liabilities.