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Condensed Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands | 9 Months Ended
--- | ---
Sep. 30, 2025 | Sep. 30, 2024
Cash flows from operating activities: |  |
Net loss | $ (62,162) | $ (102,338)
Adjustments to reconcile net loss to net cash used in operating activities: |  |
Stock-based compensation expense | 11,553 | 24,411
Depreciation and amortization | 3,460 | 4,322
Non-cash lease expense | 1,173 | 1,063
Non-cash interest expense | 2,045 | 1,898
Amortization of premium on investments, net | (1,717) | (3,890)
Change in provision for inventories | (203) | 644
Loss on disposal of property and equipment | 5 | 34
Change in provision for credit losses | 650 | 1,813
Loss on extinguishment of term loan | 7,685 | 0
Changes in operating assets and liabilities: |  |
Accounts receivable | 2,007 | (3,092)
Inventories | 10,301 | (12,989)
Prepaid expenses and other assets | 360 | 1,848
Accounts payable | (2,164) | (1,507)
Accrued compensation and related benefits | (5,966) | (3,991)
Accrued expenses and other current liabilities | (1,216) | (6,327)
Accrued warranty liability | (575) | (1,556)
Deferred revenue | 1,979 | 1,015
Operating lease liabilities | (1,326) | (1,173)
Accrued interest | (2,695) | 0
Net cash used in operating activities | (36,806) | (99,815)
Cash flows from investing activities: |  |
Purchases of property and equipment | (575) | (869)
Purchases of investment securities | (193,748) | (150,467)
Sales and maturities of investment securities | 88,049 | 147,121
Net cash used in investing activities | (106,274) | (4,215)
Cash flows from financing activities: |  |
Proceeds from stock option exercises and ESPP purchases | 639 | 2,284
Proceeds from issuance of term loans, net of issuance costs | 98,270 | 66,524
Repayment of term loan and extinguishment costs | (204,954) | 0
Proceeds from issuance of Series A convertible preferred stock, net of issuance costs | 161,548 | 0
Net cash provided by financing activities | 55,503 | 68,808
Net decrease in cash, cash equivalents and restricted cash | (87,577) | (35,222)
Cash, cash equivalents and restricted cash as of beginning of period | 127,343 | 71,838
Cash, cash equivalents and restricted cash as of end of period | 39,766 | 36,616
Summary of cash, cash equivalents and restricted cash reported within the balance sheets: |  |
Cash and cash equivalents | 36,437 | 33,287
Restricted cash | 3,329 | 3,329
Total cash, cash equivalents and restricted cash | 39,766 | 36,616
Supplemental cash flow disclosures: |  |
Cash paid for income taxes | 328 | 472
Cash paid for interest | 12,906 | 15,537
Cash paid for amounts included in the measurement of operating lease liabilities | 1,326 | 1,173
Supplemental non-cash investing and financing activities: |  |
Transfer of inventories to property and equipment | 0 | 148
Fair value of common stock warrant | $ 4,367 | $ 0

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