Quarterly report pursuant to Section 13 or 15(d)

Condensed Consolidated Statements of Cash Flows (Unaudited)

v3.23.2
Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($)
$ in Thousands
 3 Months Ended 6 Months Ended
Jun. 30, 2023
Jun. 30, 2023
Jun. 30, 2022
Cash flows from operating activities:      
Net loss   $ (23) $ (46,031)
Adjustments to reconcile net loss to net cash used in operating activities:      
Depreciation, amortization and other   3,940 3,748
Stock-based compensation expense   4,094 6,664
Interest accrued on long-term debt   (376) (24)
Amortization of debt discount and accretion related to debt   393 482
Gain on extinguishment of debt $ (1,795) (1,795)  
Accretion of asset retirement obligations   54 73
Loss on disposal of property and equipment [1] 399 399 1
Change in valuation of contingent value right (303) (303)  
Changes in operating assets and liabilities:      
Prepaid expenses   (428) 1,522
Grants revenue receivable   (274) 0
Other assets   998 (892)
Operating lease right-of-use assets and liabilities   (66) (453)
Accounts payable   4,165 (247)
Accrued liabilities   (4,728) (367)
Deferred revenue   (35,049) (10,641)
Net cash used in operating activities   (28,999) (46,165)
Cash flows from investing activities:      
Purchases of property and equipment   (200) (1,900)
Proceeds from sale of equipment   251  
Purchase of marketable securities   (2,364) (39,097)
Sales of marketable securities   31,400 88,389
Net cash provided by investing activities   29,087 47,392
Cash flows from financing activities:      
Proceeds from stock option exercises   0 24
Repayment of long-term debt   (27,500)  
Fees paid on loan modification   0 (298)
Net cash used in financing activities   (27,500) (274)
Net increase/(decrease) in cash, cash equivalents, and restricted cash   (27,412) 953
Cash, cash equivalents and restricted cash, beginning of period   34,679 28,651
Cash, cash equivalents and restricted cash, end of period 7,267 7,267 29,604
Reconciliation of cash, cash equivalents and restricted cash      
Cash and cash equivalents 4,952 4,952 26,936
Restricted cash included in other assets $ 2,315 $ 2,315 $ 2,668
Restricted Cash and Cash Equivalents, Noncurrent, Statement of Financial Position [Extensible Enumeration] Other assets Other assets Other assets
Total cash, cash equivalents and restricted cash $ 7,267 $ 7,267 $ 29,604
Supplemental Cash Flow Information      
Cash paid for interest   2,293 1,556
Non-Cash Investing Activities      
Fixed asset additions in accounts payable and accrued expenses   $ 0 $ 443
[1] Loss in disposal of property and equipment was included in interest and other expense, net in the prior year presentation.