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v3.21.2

Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2021 | Sep. 30, 2020 | Sep. 30, 2021 | Sep. 30, 2020
Cash flows from operating activities: |  |  |  |
Net loss | $ (7,044,000) | $ (7,237,000) | $ (38,253,000) | $ (68,406,000)
Adjustments to reconcile net loss to cash used in operating activities: |  |  |  |
Non-cash licensed technology impairment charge |  |  |  | 32,916,000
Non-cash gain on settlement with licensor | (6,743,000) |  | (6,743,000) |
Non-cash PPP loan payable forgiveness income | (1,758,000) |  | (1,758,000) |
Non-cash interest expense |  |  |  | 600,000
Depreciation and amortization | 802,000 | 847,000 | 2,443,000 | 3,746,000
Stock option-based compensation expense |  |  | 3,797,000 | 4,083,000
Restricted stock-based compensation expense |  |  | 3,118,000 | 812,000
Accretion and interest on short-term investments |  |  | 256,000 | (237,000)
Amortization of right-of-use lease assets |  |  | 825,000 | 752,000
Change in operating assets and liabilities: |  |  |  |
Receivables |  |  |  | (7,000,000)
Prepaid expenses and other current assets |  |  | 1,801,000 | 2,443,000
Other assets |  |  | (23,000) | (62,000)
Accounts payable, accrued expenses and lease liabilities |  |  | (4,459,000) | (5,183,000)
Change in payable to licensor |  |  | 3,588,000 | 2,127,000
Net cash used in operating activities |  |  | (35,408,000) | (33,409,000)
Cash flows from investing activities: |  |  |  |
Capital expenditures |  |  | (903,000) | (1,303,000)
Purchases of short-term investments |  |  | (15,164,000) | (139,230,000)
Proceeds from maturities of short-term investments |  |  | 74,130,000 | 51,037,000
Net cash provided by (used in)/investing activities |  |  | 58,063,000 | (89,496,000)
Cash flows from financing activities: |  |  |  |
Proceeds from loan payable |  |  |  | 1,758,000
Proceeds from open market sales of common stock |  |  | 7,699,000 |
Proceeds from exercise of stock options |  |  | 831,000 | 175,000
Net cash provided by financing activities |  |  | 8,530,000 | 1,933,000
Net increase/(decrease) in cash, cash equivalents and restricted cash |  |  | 31,185,000 | (120,972,000)
Cash, cash equivalents and restricted cash at beginning of period |  |  | 13,571,000 | 130,368,000
Cash, cash equivalents and restricted cash at end of period | 44,756,000 | 9,396,000 | 44,756,000 | 9,396,000
Supplemental cash flow information: |  |  |  |
Cash and cash equivalents | 43,781,000 | 8,424,000 | 43,781,000 | 8,424,000
Restricted cash | 975,000 | 972,000 | 975,000 | 972,000
Total cash, cash equivalents and restricted cash | $ 44,756,000 | $ 9,396,000 | 44,756,000 | 9,396,000
Cash paid for interest |  |  |  |
Cash paid for taxes |  |  |  |

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