Consolidated Balance Sheets (Unaudited) - USD ($) $ in Thousands	Jun. 30, 2024	Dec. 31, 2023
Current assets:
Cash and cash equivalents	$ 86,702	$ 25,563
Marketable securities	187,076	210,658
Unbilled accounts receivable	2,333	537
Prepaid expenses and other current assets	4,175	5,441
Total current assets	280,286	242,199
Property and equipment, net	4,408	5,216
Operating lease right-of-use assets	6,357	7,176
Restricted cash	1,216	1,092
Other assets	1,989	2,011
Total assets	294,256	257,694
Current liabilities:
Accounts payable	3,584	2,757
Accrued expenses and other current liabilities	7,033	8,726
Operating Lease Liability, current	2,082	2,192
Total current liabilities	12,699	13,675
Operating lease liability, excluding current portion	7,570	8,629
Other liabilities, excluding current portion	197	197
Total liabilities	20,466	22,501
Commitments and contingencies (Note 12)
Stockholders’ equity:
Preferred stock, $0.001 par value; 5,000,000 shares authorized; no shares issued or outstanding	0	0
Common stock, $0.001 par value; 200,000,000 shares authorized; 62,250,631 and 61,915,367 shares issued and outstanding as of June 30, 2024 and December 31, 2023, respectively	62	62
Additional paid-in capital	755,228	744,940
Accumulated other comprehensive loss	(366)	(136)
Accumulated deficit	(481,134)	(509,673)
Total stockholders’ equity	273,790	235,193
Total liabilities and stockholders’ equity	$ 294,256	$ 257,694