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v3.25.1

Statements of Cash Flows - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2024 | Dec. 31, 2023
Cash flows from operating activities |  |
Net loss | $ (32,898) | $ (36,242)
Adjustments to reconcile net loss to net cash used in operating activities: |  |
Depreciation and amortization | 833 | 900
Stock-based compensation | 7,013 | 5,273
Non-cash lease expense | 567 | 526
Non-cash investment income, net | (910) | (1,182)
Other | (69) | 18
Changes in operating assets and liabilities: |  |
Accounts receivable | 126 | (47)
Other receivables | 11,291 | (5,310)
Prepaid expenses and other assets | (10) | 465
Accounts payable | 455 | (442)
Accrued and other current liabilities | (575) | (2,301)
Deferred revenue | (12) | 11,154
Net cash used in operating activities | (14,189) | (27,188)
Cash flows from investing activities |  |
Purchases of marketable securities | (35,831) | (54,143)
Proceeds from maturities and sales of marketable securities | 48,675 | 54,398
Purchases of property and equipment | (56) | (128)
Proceeds from disposal of property and equipment | 0 | 311
Purchases of intangible assets | (1,045) | 0
Net cash provided by investing activities | 11,743 | 438
Cash flows from financing activities |  |
Proceeds from exercise of stock options | 2,902 | 1,095
Proceeds from employee stock purchase plan | 147 | 123
Finance lease principal payments | (440) | (466)
Net cash provided by financing activities | 2,609 | 752
Net increase (decrease) in cash and cash equivalents | 163 | (25,998)
Cash and cash equivalents at beginning of period | 3,880 | 29,878
Cash and cash equivalents at end of period | 4,043 | 3,880
Supplemental disclosure of cash flow information |  |
Cash paid for interest | 28 | 55
Supplemental disclosure of non-cash investing and financing information |  |
Issuance of stock to settle accrued and other current liabilities | 406 | 0
Purchases of property and equipment in accounts payable and accrued and other current liabilities | $ 0 | $ 20

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