Property and Equipment, Net

3 Months Ended

Mar. 31, 2023

Property, Plant and Equipment [Abstract]

5. Property and Equipment, net

Property and equipment, net consisted of the following (in thousands):


	Useful life (in years)	March 31, 2023			December 31, 2022
Laboratory equipment	3	$	10,614		$	7,503
Leasehold improvements	Lesser of useful life or lease term		25,965			19,959
Furniture and fixtures	3		951			184
Construction in progress	—		1,833			9,292
Computer equipment	3		177			172
Software	3		352			353
			39,892			37,463
Less: Accumulated depreciation and amortization			(10,006	)		(8,753	)
Property and equipment, net		$	29,886		$	28,710

Depreciation and amortization expense was $1.3 million and $0.4 million for the three months ended March 31, 2023 and 2022, respectively. The increase in expense is primarily due to the completion of the Company's good manufacturing practice (GMP) cell processing and vector manufacturing suite at the Company's office in Redwood City, California (1000 Bridge Parkway) in February 2023.

Construction in progress has decreased by $7.5 million during the three months ended March 31, 2023, compared to the balance at December 31, 2022 due to the Company's completion of the Company's GMP cell processing and vector manufacturing suite in February 2023. The remaining $1.8 million in construction in progress as of March 31, 2023 is primarily related to lab and computer equipment not yet placed into service.