Condensed Statements of Cash Flows - USD ($) $ in Thousands	3 Months Ended
Mar. 31, 2026	Mar. 31, 2025
Cash flows from operating activities:
Net loss	$ (20,196)	$ (32,656)
Adjustments to reconcile net loss to net cash used in operating activities:
Reduction in the carrying amount of ROU assets, operating	393	361
Reduction in the carrying amount of ROU assets, finance	80	80
Stock based compensation expense	2,755	3,697
Depreciation and amortization expense	73	60
Amortization of premium (accretion of discount) on investments in U.S. Treasury securities	(42)	12
Changes in operating assets and liabilities:
Prepaid expenses and other current assets	(1,119)	(362)
Accounts payable	(1,596)	5,143
Accrued expenses and other current liabilities	(1,092)	2,315
Lease liabilities, operating	(402)	(357)
Lease liabilities, finance	2	(9)
Net cash used in operating activities	(21,144)	(21,716)
Cash flows from investing activities:
Purchase of property and equipment	(35)
Proceeds from sales or maturities of investments	27,495	15,600
Net cash provided by investing activities	27,460	15,600
Cash flows from financing activities:
Proceeds from exercise of common warrants	2,446
Proceeds from exercise of stock options	9
Payments on finance leases	(121)	(159)
Proceeds from common stock issuances under 2023 ESPP	143	170
Third-party commissions and offering costs incurred upon October 2025 Financing Transactions	(25)
Net cash provided by financing activities	2,452	11
Net change in cash, cash equivalents and restricted cash	8,768	(6,105)
Cash, cash equivalents and restricted cash at beginning of period	66,248	38,266
Cash, cash equivalents and restricted cash at end of period	75,016	32,161
Supplemental disclosure of non-cash activities
Unrealized gain (loss) on investments	(330)	49
Amounts reclassified from deposit liabilities upon the vesting of early-exercised stock options previously subject to repurchase	1	13
Unpaid offering costs included in accounts payable and accrued expenses	$ 75	478
Property and equipment purchased in the prior period and paid in the current period, net of property and equipment purchased in the current period included in accounts payable		$ 77

Amounts reclassified from deposit liabilities upon the vesting of early-exercised stock options previously subject to repurchase, net of proceeds received from early exercise of unvested stock options subject to repurchase and recorded as deposit liabilities.

No definition available.