CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023
Current assets:
Cash and cash equivalents	$ 78,049	$ 67,602
Marketable securities	371,295	284,367
Collaboration receivable	2,603	5,878
Prepaid expenses and other current assets	13,388	11,924
Total current assets	465,335	369,771
Property and equipment, net	10,786	11,191
Restricted cash	3,950	3,950
Right-of-use assets, operating leases	73,773	81,490
Other non-current assets	746	2,790
Total assets	554,590	469,192
Current liabilities:
Accounts payable	1,292	3,277
Accrued expenses and other current liabilities	13,403	11,325
Income taxes payable	2,251	4,024
Operating lease obligations, current portion	7,738	7,909
Deferred revenue, current portion	45,919	132,261
Total current liabilities	70,603	158,796
Operating lease obligations, net of current portion	53,576	60,321
Deferred revenue, net of current portion	7,964	7,715
Total liabilities	132,143	226,832
Commitments and contingencies (Note 11)
Stockholders’ equity:
Common stock, par value $0.0001; 150,000,000 shares authorized; 37,414,899 shares issued and 37,400,499 shares outstanding as of September 30, 2024 and 33,461,771 shares issued and 33,437,296 shares outstanding as of December 31, 2023	4	3
Additional paid‑in capital	551,946	437,132
Accumulated other comprehensive income	972	195
Accumulated deficit	(130,475)	(194,970)
Total stockholders’ equity	422,447	242,360
Total liabilities and stockholders’ equity	$ 554,590	$ 469,192