v3.26.1
CONDENSED CONSOLIDATED STATEMENTS OF REDEEMABLE CONVERTIBLE PREFERRED STOCK AND STOCKHOLDERS' DEFICIT - USD ($)
$ in Thousands
Total
Preferred Stock [Member]
Redeemable Convertible Preferred Stock [Member]
Common Stock [Member]
Additional Paid in Capital [Member]
Accumulated Other Comprehensive Income (Loss) [Member]
Accumulated Deficit [Member]
Beginning balance, shares at Dec. 31, 2023   130,471,047 10,877,392      
Beginning balance,value at Dec. 31, 2023   $ 178,060        
Beginning balance at Dec. 31, 2023 $ (100,875)   $ 1 $ 11,316 $ 27 $ (112,219)
Issuance of common stock upon exercise of stock options - Shares     3,044,363      
Issuance of common stock upon exercise of stock options - Value 2,547     2,547    
Sale of Series C preferred stock, net of issuance costs - Shares   84,567,145        
Sale of Series C preferred stock, net of issuance costs - Value   $ 159,968        
Stock-based compensation 7,060     7,060    
Unrealized gain (loss) on marketable securities (54)       (54)  
Net loss (83,109)         (83,109)
Ending balance at Dec. 31, 2024 (174,431)   $ 1 20,923 (27) (195,328)
Ending balance,value at Dec. 31, 2024 338,028 $ 338,028        
Ending balance, shares at Dec. 31, 2024   215,038,192 13,921,755      
Issuance of common stock upon exercise of stock options - Shares     17,611      
Issuance of common stock upon exercise of stock options - Value 6     6    
Stock-based compensation 2,110     2,110    
Net loss (24,986)         (24,986)
Ending balance at Mar. 31, 2025 (197,301)   $ 1 23,039 (27) (220,314)
Ending balance,value at Mar. 31, 2025   $ 338,028        
Ending balance, shares at Mar. 31, 2025   215,038,192 13,939,366      
Beginning balance, shares at Dec. 31, 2024   215,038,192 13,921,755      
Beginning balance,value at Dec. 31, 2024 338,028 $ 338,028        
Beginning balance at Dec. 31, 2024 (174,431)   $ 1 20,923 (27) (195,328)
Unrealized gain (loss) on marketable securities (11)          
Net loss (51,882)          
Ending balance at Jun. 30, 2025 (221,435)   $ 1 25,812 (38) (247,210)
Ending balance,value at Jun. 30, 2025   $ 338,028        
Ending balance, shares at Jun. 30, 2025   215,038,192 13,939,366      
Beginning balance, shares at Dec. 31, 2024   215,038,192 13,921,755      
Beginning balance,value at Dec. 31, 2024 338,028 $ 338,028        
Beginning balance at Dec. 31, 2024 $ (174,431)   $ 1 20,923 (27) (195,328)
Issuance of common stock upon exercise of stock options - Shares 20,146   20,146      
Issuance of common stock upon exercise of stock options - Value $ 20     20    
Stock-based compensation 8,931     8,931    
Unrealized gain (loss) on marketable securities 50       50  
Net loss (100,607)         (100,607)
Ending balance at Dec. 31, 2025 (266,037)   $ 1 29,874 23 (295,935)
Ending balance,value at Dec. 31, 2025 338,028 $ 338,028        
Ending balance, shares at Dec. 31, 2025   215,038,192 13,941,901      
Beginning balance, shares at Mar. 31, 2025   215,038,192 13,939,366      
Beginning balance,value at Mar. 31, 2025   $ 338,028        
Beginning balance at Mar. 31, 2025 (197,301)   $ 1 23,039 (27) (220,314)
Issuance of common stock upon exercise of stock options - Shares     0      
Issuance of common stock upon exercise of stock options - Value 12     12    
Stock-based compensation 2,761     2,761    
Unrealized gain (loss) on marketable securities (11)     0 (11)  
Net loss (26,896)         (26,896)
Ending balance at Jun. 30, 2025 (221,435)   $ 1 25,812 (38) (247,210)
Ending balance,value at Jun. 30, 2025   $ 338,028        
Ending balance, shares at Jun. 30, 2025   215,038,192 13,939,366      
Beginning balance, shares at Dec. 31, 2025   215,038,192 13,941,901      
Beginning balance,value at Dec. 31, 2025 338,028 $ 338,028        
Beginning balance at Dec. 31, 2025 (266,037)   $ 1 29,874 23 (295,935)
Issuance of common stock upon exercise of stock options - Shares     59,937      
Issuance of common stock upon exercise of stock options - Value 47     47    
Stock-based compensation 1,454     1,454    
Conversion of Series A Preferred Stock,Share   (7,085,290) 7,085,290      
Conversion of Series A Preferred Stock 8,000 $ (8,000) $ 1 7,999    
Unrealized gain (loss) on marketable securities (28)       (28)  
Net loss (19,633)         (19,633)
Ending balance at Mar. 31, 2026 (276,197)   $ 2 39,374 (5) (315,568)
Ending balance,value at Mar. 31, 2026   $ 330,028        
Ending balance, shares at Mar. 31, 2026   207,952,902 21,087,128      
Beginning balance, shares at Dec. 31, 2025   215,038,192 13,941,901      
Beginning balance,value at Dec. 31, 2025 338,028 $ 338,028        
Beginning balance at Dec. 31, 2025 $ (266,037)   $ 1 29,874 23 (295,935)
Issuance of common stock upon exercise of stock options - Shares 1,161,144          
Unrealized gain (loss) on marketable securities $ (26)          
Net loss (45,497)          
Ending balance at Jun. 30, 2026 (299,711)   $ 2 41,722 (3) (341,432)
Ending balance,value at Jun. 30, 2026 330,028 $ 330,028        
Ending balance, shares at Jun. 30, 2026   207,952,902 22,188,335      
Beginning balance, shares at Mar. 31, 2026   207,952,902 21,087,128      
Beginning balance,value at Mar. 31, 2026   $ 330,028        
Beginning balance at Mar. 31, 2026 (276,197)   $ 2 39,374 (5) (315,568)
Issuance of common stock upon exercise of stock options - Shares     1,101,207      
Issuance of common stock upon exercise of stock options - Value 796     796    
Stock-based compensation 1,552     1,552    
Unrealized gain (loss) on marketable securities 2       2  
Net loss (25,864)         (25,864)
Ending balance at Jun. 30, 2026 (299,711)   $ 2 $ 41,722 $ (3) $ (341,432)
Ending balance,value at Jun. 30, 2026 $ 330,028 $ 330,028        
Ending balance, shares at Jun. 30, 2026   207,952,902 22,188,335