Quarterly report pursuant to Section 13 or 15(d)

CONDENSED STATEMENTS OF STOCKHOLDERS' EQUITY

v3.22.1
CONDENSED STATEMENTS OF STOCKHOLDERS' EQUITY - USD ($)
$ in Thousands
Common Stock
Additional Paid-in Capital
Accumulated Other Comprehensive Loss
Accumulated Deficit
Total
Balance at Dec. 31, 2020 $ 169 $ 1,339,833 $ (4) $ (1,305,972) $ 34,026
Balance (in shares) at Dec. 31, 2020 169,316,782        
Increase (Decrease) in Stockholders' Equity          
Net income (loss)       39,500 39,500
Net unrealized gain (loss) on short-term investments     3   3
Issuance of common stock upon exercise of options $ 1 2,096     2,097
Issuance of common stock upon exercise of options (in shares) 813,854        
Stock-based compensation expense   2,672     2,672
Balance at Mar. 31, 2021 $ 170 1,344,601 (1) (1,266,472) 78,298
Balance (in shares) at Mar. 31, 2021 170,130,636        
Balance at Dec. 31, 2021 $ 172 1,354,190 (102) (1,323,886) 30,374
Balance (in shares) at Dec. 31, 2021 171,602,226        
Increase (Decrease) in Stockholders' Equity          
Net income (loss)       (27,445) (27,445)
Net unrealized gain (loss) on short-term investments     (314)   (314)
Issuance of common stock upon exercise of options   940     940
Issuance of common stock upon exercise of options (in shares) 420,521        
Issuance of common stock upon vesting of restricted stock units (in shares) 22,500        
Stock-based compensation expense   3,243     3,243
Balance at Mar. 31, 2022 $ 172 $ 1,358,373 $ (416) $ (1,351,331) $ 6,798
Balance (in shares) at Mar. 31, 2022 172,045,247