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Condensed Consolidated Statements of Redeemable Convertible Preferred Stock and Stockholders' Equity - USD ($)
$ in Thousands
Preferred stock
Series X redeemable convertible preferred stock
Common stock
Underwriting agreement
Common stock
at-the-market offerings
Common stock
Additional paid-in capital
Underwriting agreement
Additional paid-in capital
at-the-market offerings
Additional paid-in capital
Accumulated deficit
Accumulated other comprehensive gain (loss)
Underwriting agreement
at-the-market offerings
Total
Beginning balance at Dec. 31, 2023 $ 95,324     $ 41     $ 728,285 $ (580,534) $ 0     $ 243,116
Beginning balance (in shares) at Dec. 31, 2023 31,107     41,034,797                
Increase (Decrease) in Shareholders' Equity                        
Issuance of common stock, net of issuance costs   $ 10 $ 3   $ 117,162 $ 19,999       $ 117,172 $ 20,002  
Issuance of common stock net of issuance costs (in shares)   10,340,000 2,945,806                  
Issuance of common stock upon exercise of options and warrants       $ 1     4,632         4,633
Issuance of common stock upon exercise of options and warrants (in shares)       582,458                
Stock-based compensation expense             2,754         2,754
Unrealized gain (loss) on short-term investments                 (14)     (14)
Net loss               (19,928)       (19,928)
Ending balance at Mar. 31, 2024 $ 95,324     $ 55     872,832 (600,462) (14)     367,735
Ending balance (in shares) at Mar. 31, 2024 31,107     54,903,061                
Beginning balance at Dec. 31, 2023 $ 95,324     $ 41     728,285 (580,534) 0     243,116
Beginning balance (in shares) at Dec. 31, 2023 31,107     41,034,797                
Increase (Decrease) in Shareholders' Equity                        
Net loss                       (68,634)
Ending balance at Sep. 30, 2024 $ 95,324     $ 57     895,110 (649,168) 331     341,654
Ending balance (in shares) at Sep. 30, 2024 31,107     56,434,219                
Beginning balance at Mar. 31, 2024 $ 95,324     $ 55     872,832 (600,462) (14)     367,735
Beginning balance (in shares) at Mar. 31, 2024 31,107     54,903,061                
Increase (Decrease) in Shareholders' Equity                        
Issuance of common stock upon exercise of options             94         94
Issuance of common stock upon exercise of options (in shares)       17,602                
Stock-based compensation expense             3,451         3,451
Unrealized gain (loss) on short-term investments                 (31)     (31)
Net loss               (24,172)       (24,172)
Ending balance at Jun. 30, 2024 $ 95,324     $ 55     876,377 (624,634) (45)     347,077
Ending balance (in shares) at Jun. 30, 2024 31,107     54,920,663                
Increase (Decrease) in Shareholders' Equity                        
Issuance of common stock, net of issuance costs     $ 2     $ 15,241         $ 15,243  
Issuance of common stock net of issuance costs (in shares)     1,504,619                  
Issuance of common stock upon exercise of options             58         58
Issuance of common stock upon exercise of options (in shares)       8,937                
Stock-based compensation expense             3,434         3,434
Unrealized gain (loss) on short-term investments                 376     376
Net loss               (24,534)       (24,534)
Ending balance at Sep. 30, 2024 $ 95,324     $ 57     895,110 (649,168) 331     341,654
Ending balance (in shares) at Sep. 30, 2024 31,107     56,434,219                
Beginning balance at Dec. 31, 2024 $ 95,324     $ 57     898,513 (674,794) 163     319,263
Beginning balance (in shares) at Dec. 31, 2024 31,107     56,434,219                
Increase (Decrease) in Shareholders' Equity                        
Stock-based compensation expense             3,839         3,839
Unrealized gain (loss) on short-term investments                 (103)     (103)
Net loss               (33,709)       (33,709)
Ending balance at Mar. 31, 2025 $ 95,324     $ 57     902,352 (708,503) 60     289,290
Ending balance (in shares) at Mar. 31, 2025 31,107     56,434,219                
Beginning balance at Dec. 31, 2024 $ 95,324     $ 57     898,513 (674,794) 163     319,263
Beginning balance (in shares) at Dec. 31, 2024 31,107     56,434,219                
Increase (Decrease) in Shareholders' Equity                        
Net loss                       (98,404)
Ending balance at Sep. 30, 2025 $ 95,324     $ 57     911,014 (773,198) 56     233,253
Ending balance (in shares) at Sep. 30, 2025 31,107     56,434,894                
Beginning balance at Mar. 31, 2025 $ 95,324     $ 57     902,352 (708,503) 60     289,290
Beginning balance (in shares) at Mar. 31, 2025 31,107     56,434,219                
Increase (Decrease) in Shareholders' Equity                        
Stock-based compensation expense             4,351         4,351
Unrealized gain (loss) on short-term investments                 (76)     (76)
Net loss               (33,052)       (33,052)
Ending balance at Jun. 30, 2025 $ 95,324     $ 57     906,703 (741,555) (16)     260,513
Ending balance (in shares) at Jun. 30, 2025 31,107     56,434,219                
Increase (Decrease) in Shareholders' Equity                        
Issuance of common stock upon exercise of options             3         3
Issuance of common stock upon exercise of options (in shares)       675                
Stock-based compensation expense             4,308         4,308
Unrealized gain (loss) on short-term investments                 72     72
Net loss               (31,643)       (31,643)
Ending balance at Sep. 30, 2025 $ 95,324     $ 57     $ 911,014 $ (773,198) $ 56     $ 233,253
Ending balance (in shares) at Sep. 30, 2025 31,107     56,434,894