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


	Useful life (in years)	June 30, 2024			December 31, 2023
Leasehold improvements	Lesser of useful life or lease term	$	26,643		$	26,643
Laboratory equipment	3		13,597			13,165
Furniture and fixtures	3		951			951
Construction in progress	—		350			265
Computer equipment	3		189			189
Software	3		411			411
			42,141			41,624
Less: Accumulated depreciation and amortization			(18,100	)		(14,847	)
Property and equipment, net		$	24,041		$	26,777

Depreciation and amortization expense was $1.6 million and $1.5 million for the three months ended June 30, 2024 and 2023, respectively. Depreciation and amortization expense was $3.3 million and $2.8 million for the six months ended June 30, 2024 and 2023, respectively.