Quarterly report pursuant to Section 13 or 15(d)

Condensed Consolidated Statements of Cash Flows

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Condensed Consolidated Statements of Cash Flows - USD ($)
$ in Thousands
 3 Months Ended 12 Months Ended
Mar. 31, 2021
Mar. 31, 2020
Dec. 31, 2020
Dec. 31, 2019
Cash flows from operating activities:        
Net loss $ (30,567) $ (12,684)    
Adjustments to reconcile net loss to net cash provided by operating activities:        
Depreciation and amortization 1,253 1,604    
Loss on disposal of fixed assets 1,894      
Loss on sublease 1,211      
Change in fair value of warrant liability   (2)    
Provision for doubtful accounts 5      
Stock-based compensation expense 21,610 4,456    
Changes in assets and liabilities:        
Accounts receivable (7,439) (555)    
Expenditures billable to clients 2,236 5,446    
Prepaid expenses and other current assets 1,507 406    
Accounts payable 3,554 (763)    
Accrued media payments 9,517 3,334    
Client advances 1,825 947    
Other accrued liabilities (103) (644)    
Other liabilities (294) (42)    
Net cash provided by operating activities 6,209 1,503 $ 1,433 $ (30,432)
Cash flows from investing activities:        
Capital expenditures (100) (9)    
Net cash used in investing activities (100) (9)    
Cash flows from financing activities:        
Proceeds from common stock offerings, net   3,505    
Proceeds from the exercise of warrants 2,279      
Proceeds from issuances of stock under employee stock plans, net 4,254 101    
Net cash provided by financing activities 6,533 3,606    
Net increase in cash and cash equivalents and restricted cash 12,642 5,100    
Cash and cash equivalents and restricted cash, beginning of period 115,672 44,920 44,920  
Cash and cash equivalents and restricted cash, end of period $ 128,314 $ 50,020 $ 115,672 $ 44,920