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v3.22.2.2

Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands | 6 Months Ended
--- | ---
Jun. 30, 2022 | Jun. 30, 2021
Operating Activities |  |
Net income (loss) | $ 37,096 | $ (42,366)
Adjustments to reconcile net income (loss) to net cash used in operating activities: |  |
Stock-based compensation expense | 861 | 2,009
Depreciation and amortization | 180 | 90
Bad debt expense | 200 |
Net gain on disposal of assets | (57,245) |
Changes in operating assets and liabilities: |  |
Accounts and other receivables | 1,618 | 1,342
Prepaid and other current assets | 2,197 | (2,338)
Accounts payable | (5,382) | (4,091)
Accrued compensation and other accrued liabilities | (3,680) | 663
Operating lease liability and right-of-use asset | 41 | 157
Deferred revenue | (230) | 55
Net cash flows used in operating activities | (24,344) | (44,479)
Investing Activities |  |
Proceeds from maturities of short-term investments | 2,504 | 38,632
Proceeds from the sale of property and equipment | 447 |
Proceeds from the sale of complement portfolio to Vertex | 55,000 |
Payment of transaction costs in connection with sale of complement portfolio to Vertex | (2,576) |
Purchases of property and equipment |  | (347)
Net cash flows provided by investing activities | 55,375 | 38,285
Financing Activities |  |
Issuance of common stock for public offering, net of issuance costs |  | 49,250
Issuance of common stock from stock grants and option exercises | 16 | 205
Net cash flow provided by financing activities | 16 | 49,455
Net increase in cash and cash equivalents | 31,047 | 43,261
Cash and cash equivalents at beginning of the period | 44,347 | 30,360
Cash and cash equivalents at end of the period | $ 75,394 | 73,621
Supplemental Disclosure of Non-Cash Investing and Financing Activities: |  |
Right-of-use assets obtained in exchange for operating lease liabilities |  | $ 1,850

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