Consolidated Balance Sheets - USD ($) $ in Thousands	Dec. 31, 2024	Dec. 31, 2023
Current assets:
Cash and cash equivalents	$ 76,301	$ 66,446
Marketable securities	108,922	197,918
Collaboration receivable	1,224
Tenant receivable		3,960
Prepaid expenses and other current assets	6,456	4,294
Total current assets	192,903	272,618
Property and equipment, net	15,293	25,799
Operating lease right-of-use assets	20,310	69,852
Restricted cash	2,152	5,791
Other long-term assets	539	698
Total assets	231,197	374,758
Current liabilities:
Accounts payable	1,408	2,346
Accrued expenses and other current liabilities	10,059	16,529
Deferred revenue	10,582	12,919
Operating lease liability	13,006	8,120
Total current liabilities	35,055	39,914
Deferred revenue, net of current portion	29,161	41,942
Operating lease liability, net of current portion	80,554	89,774
Other liabilities, net of current portion	223
Total liabilities	144,993	171,630
Commitments and contingencies (Note 12)
Stockholders' equity:
Preferred stock, $0.0001 par value; 5,000,000 shares authorized and no shares issued or outstanding at December 31, 2024 and December 31, 2023
Common stock, $0.0001 par value; 150,000,000 shares authorized at December 31, 2024 and December 31, 2023; 66,971,977 and 66,205,550 shares issued and outstanding at December 31, 2024 and December 31, 2023, respectively	7	7
Additional paid-in capital	789,083	774,224
Accumulated other comprehensive income	159	274
Accumulated deficit	(703,045)	(571,377)
Total stockholders' equity	86,204	203,128
Total liabilities and stockholders' equity	$ 231,197	$ 374,758