Quarterly report pursuant to Section 13 or 15(d)

Condensed Consolidated Statement of Stockholders' Equity (Unaudited)

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Condensed Consolidated Statement of Stockholders' Equity (Unaudited) - USD ($)
$ in Thousands
Total
Common Stock [Member]
Additional Paid-in Capital [Member]
Accumulated Deficit [Member]
AOCI Attributable to Parent [Member]
Beginning balance, value at Dec. 31, 2022 $ 32,990 $ 0 $ 425,196 $ (392,080) $ (126)
Beginning balance, shares at Dec. 31, 2022   4,171,297      
Issuance of common stock, net of issuance costs 102   102    
Issuance of common stock, net of issuance costs, shares   13,164      
Stock-based compensation expense 1,850   1,850    
Issuance of common stock upon exercise of stock options 130   130    
Issuance of common stock upon exercise of stock options, shares   43,836      
Change in unrealized gain (loss) on marketable debt securities 103       103
Issuance of common stock upon conversion of K2 Loan and Security Agreement, Shares   194,444      
Issuance of common stock upon conversion of K2 Loan and Security Agreement, Value 875   875    
Net Income (Loss) (26,529)     (26,529)  
Ending balance, value at Jun. 30, 2023 9,521 $ 0 428,153 (418,609) (23)
Ending balance, shares at Jun. 30, 2023   4,422,741      
Beginning balance, value at Mar. 31, 2023 16,459 $ 0 426,352 (409,825) (68)
Beginning balance, shares at Mar. 31, 2023   4,215,133      
Issuance of common stock, net of issuance costs 103   103    
Issuance of common stock, net of issuance costs, shares   13,164      
Stock-based compensation expense 823   823    
Change in unrealized gain (loss) on marketable debt securities 45       45
Issuance of common stock upon conversion of K2 Loan and Security Agreement, Shares   194,444      
Issuance of common stock upon conversion of K2 Loan and Security Agreement, Value 875   875    
Net Income (Loss) (8,784)     (8,784)  
Ending balance, value at Jun. 30, 2023 9,521 $ 0 428,153 (418,609) (23)
Ending balance, shares at Jun. 30, 2023   4,422,741      
Beginning balance, value at Dec. 31, 2023 (6,905) $ 0 429,780 (436,684) (1)
Beginning balance, shares at Dec. 31, 2023   4,423,683      
Issuance of common stock, net of issuance costs 144,395 $ 1 144,394    
Issuance of common stock, net of issuance costs, shares   6,794,537      
Stock-based compensation expense 2,270   2,270    
Issuance of common stock upon exercise of stock options $ 1,941   1,941    
Issuance of common stock upon vesting of restricted stock, shares   3,764      
Issuance of common stock upon exercise of stock options, shares 134,076 134,076      
Change in unrealized gain (loss) on marketable debt securities $ (387)       (387)
Issuance of common stock upon conversion of K2 Loan and Security Agreement, Shares   142,857      
Issuance of common stock upon conversion of K2 Loan and Security Agreement, Value 1,125   1,125    
Net Income (Loss) (16,896)     (16,896)  
Ending balance, value at Jun. 30, 2024 125,543 $ 1 579,510 (453,580) (388)
Ending balance, shares at Jun. 30, 2024   11,498,917      
Beginning balance, value at Mar. 31, 2024 96,965 $ 1 540,876 (443,583) (329)
Beginning balance, shares at Mar. 31, 2024   10,507,237      
Issuance of common stock, net of issuance costs 35,631   35,631    
Issuance of common stock, net of issuance costs, shares   881,399      
Stock-based compensation expense 1,288   1,288    
Issuance of common stock upon exercise of stock options 1,715   1,715    
Issuance of common stock upon vesting of restricted stock, shares   436      
Issuance of common stock upon exercise of stock options, shares   109,845      
Change in unrealized gain (loss) on marketable debt securities (59)       (59)
Net Income (Loss) (9,997)     (9,997)  
Ending balance, value at Jun. 30, 2024 $ 125,543 $ 1 $ 579,510 $ (453,580) $ (388)
Ending balance, shares at Jun. 30, 2024   11,498,917