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v3.24.1

Consolidated Statements of Cash Flows - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2023 | Dec. 31, 2022
Net loss | $ (81,172) | $ (58,032)
Adjustments to reconcile net loss to net cash used in operating activities: |  |
Non-cash lease expense | 3,610 | 1,396
Stock-based compensation expense | 2,381 | 1,140
Depreciation expense | 3,630 | 2,511
Non-cash interest expense | 0 | 118
Net amortization of premiums and discounts on investments | (80) | (145)
Loss on disposal of property and equipment | 65 | 0
Changes in operating assets and liabilities: |  |
Prepaid expenses and other current assets | 559 | (28)
Accounts payable | 3,100 | 1,755
Accrued expenses | 1,270 | (39)
Operating lease liabilities | 1,341 | (2,198)
Other non-current assets | (1,987) | (123)
Net cash used in operating activities | (67,283) | (53,645)
Investing Activities |  |
Purchases of investments |  | (37,213)
Proceeds from maturities of investments | 19,000 | 53,485
Purchases of property and equipment | (7,836) | (5,136)
Advance payments for property and equipment not yet received |  | (76)
Net cash provided by (used in) investing activities | 11,164 | 11,060
Financing Activities |  |
Proceeds from exercises of stock options | 702 | 62
Proceeds from the issuance of common stock in pre-closing financing | 117,250 | 0
Cash acquired in connection with the reverse recapitalization | 36,600 | 0
Payment of reverse recapitalization transaction costs | (12,247) | 0
Other financing activities, net | (2) | (44)
Net cash provided by financing activities | 187,761 | 18
Net (decrease) increase in cash, cash equivalents, and restricted cash | 131,642 | (42,567)
Cash, cash equivalents and restricted cash, beginning of period | 41,477 | 84,044
Cash, cash equivalents and restricted cash, end of period | 173,119 | 41,477
Noncash Investing and Financing Items [Abstract] |  |
Property and equipment capitalized under tenant improvement allowance | 2,271 | 0
Purchases of property and equipment in accounts payable and accrued expenses | 1,983 | 402
Operating Lease Liabilities Arising From Right-Of-Use Assets | 26,777 | 5,629
Operating lease liabilities arising from lease modification | 1,959 | 0
Supplemental cash flow information |  |
Cash paid for income taxes | 27 | 11
Cash paid for operating lease liabilities | 2,978 | 2,335
Series B-2 Preferred Stock [Member] |  |
Financing Activities |  |
Proceeds from Series convertible preferred stock, net of issuance costs | $ 45,458 | $ 0

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