v3.22.2
Condensed Statements of Cash Flows (Unaudited) - USD ($)
$ in Thousands
6 Months Ended
Jun. 30, 2022
Jun. 30, 2021
Operating activities    
Net loss $ (65,122) $ (36,511)
Adjustments to reconcile net loss to net cash used in operating activities:    
Depreciation and amortization 2,724 2,411
Amortization of premium on marketable securities 913 1,194
Stock-based compensation 13,670 9,859
Noncash lease expenses 1,325 2,384
Unrealized loss on equity securities 3,173 6,364
Remeasurement of liability awards (9) 25
Other 22 258
Changes in operating assets and liabilities:    
Accounts receivable (85,217) (3,601)
Prepaid expenses and other assets (81) (4,818)
Accounts payable 836 1,742
Accrued compensation (3,669) (2,313)
Other liabilities 1,072 434
Deferred revenue 90,994 (12,382)
Change in operating lease liability 928 (739)
Net cash used in operating activities (38,441) (35,693)
Investing activities    
Purchases of marketable securities (14,938) (202,315)
Maturities of marketable securities 70,409 85,250
Sales of marketable securities 29,179 9,000
Purchases of equipment and leasehold improvements (3,753) (7,789)
Net cash provided by (used in) investing activities 80,897 (115,854)
Financing activities    
Payment of issuance costs   (491)
Proceeds from At-The-Market Sale, net of issuance costs 8,595  
Payment of debt (3,125)  
Proceeds from exercise of common stock options 182 1,812
Taxes paid related to net shares settlement of restricted stock units (413) (407)
Proceeds from employee stock purchase plan 1,006 873
Net cash provided by financing activities 6,245 1,787
Net increase (decrease) in cash, cash equivalents and restricted cash 48,701 (149,760)
Cash, cash equivalents and restricted cash at beginning of period 31,286 207,024
Cash, cash equivalents and restricted cash at end of period 79,987 57,264
Supplemental disclosure of cash flow information:    
Cash paid for interest 998 1,020
Supplemental disclosure of non-cash investing and financing information:    
Purchases of equipment included in accounts payable 392 1,376
Issuance costs included in accounts payable $ 382  
Embedded interest associated with program fees   $ 412

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