v3.26.1
Unaudited Condensed Consolidated Interim Statements of Changes in Equity
SFr in Thousands
CHF (SFr)
shares
Share capital
CHF (SFr)
shares
Treasury shares
CHF (SFr)
shares
Share premium
CHF (SFr)
Reserve for share-based payment
CHF (SFr)
Cumulative translation adjustment
CHF (SFr)
Actuarial gain (loss) on post-employment benefit obligations
CHF (SFr)
Accumulated losses
CHF (SFr)
Beginning Balance (in shares) at Dec. 31, 2024 | shares   44,662,402 (1,000,000)          
Beginning Balance at Dec. 31, 2024 SFr 73,383 SFr 446 SFr (10) SFr 344,946 SFr 16,062 SFr (271) SFr (2,233) SFr (285,557)
Loss for the period (58,589)             (58,589)
Other comprehensive income (loss):                
Actuarial gain on post-employment benefit obligations 613           613  
Foreign currency translation differences (191)         (191)    
Total comprehensive income (loss) for the period (58,167)         (191) 613 (58,589)
Share-based compensation expense 7,170       7,170      
Issuance of ordinary shares related to underwritten offering (in shares) | shares   5,000,000            
Issuance of ordinary shares related to underwritten offering 90,227 SFr 50   90,177        
Transaction costs related to the issuance of ordinary shares SFr (7,041)     (7,041)        
Issuance of shares to be held as treasury shares (in shares) | shares   2,500,000 (2,500,000)          
Issuance of shares to be held as treasury shares   SFr 25 SFr (25)          
Vesting of earnout shares (in shares) | shares   1,422,723            
Vesting of earnout shares   SFr 14   (14)        
Stock option exercised (in shares) | shares [1] 335,581              
Warrants exercised (in shares) | shares   1,817,063            
Warrants exercised SFr 35,882 SFr 19   35,863        
Stock options exercised and RSUs vested/released (in shares) | shares   433,571            
Stock options exercised and RSUs vested/released 1,642 SFr 4   2,507 (869)      
Ending Balance (in shares) at Jun. 30, 2025 | shares   55,835,759 (3,500,000)          
Ending balance at Jun. 30, 2025 143,096 SFr 558 SFr (35) 466,438 22,363 (462) (1,620) (344,146)
Beginning Balance (in shares) at Dec. 31, 2025 | shares   58,688,141 (703,703)          
Beginning Balance at Dec. 31, 2025 196,070 SFr 587 SFr (7) 551,731 30,387 (480) (1,634) (384,514)
Loss for the period (38,822)             (38,822)
Other comprehensive income (loss):                
Actuarial gain on post-employment benefit obligations 39           39  
Foreign currency translation differences 61         61    
Total comprehensive income (loss) for the period (38,722)         61 39 (38,822)
Share-based compensation expense 11,644       11,644      
Transaction costs related to the issuance of ordinary shares (2,186)     (2,186)        
Issuance of shares to be held as treasury shares (in shares) | shares   7,750,400 (7,750,400)          
Issuance of shares to be held as treasury shares   SFr 77 SFr (77)          
Vesting of earnout shares (in shares) | shares   948,549            
Vesting of earnout shares   SFr 9   (9)        
Issuance of ordinary shares pursuant to ATM program (in shares) | shares     2,250,000          
Issuance of ordinary shares pursuant to ATM Program SFr 47,775   SFr 22 47,753        
Stock option exercised (in shares) | shares [1] 72,750              
Warrants exercised (in shares) | shares   186,929            
Warrants exercised SFr 4,179 SFr 2   4,177        
Stock options exercised and RSUs vested/released (in shares) | shares   362,148            
Stock options exercised and RSUs vested/released 577 SFr 4   4,471 (3,898)      
Ending Balance (in shares) at Jun. 30, 2026 | shares   67,936,167 (6,204,103)          
Ending balance at Jun. 30, 2026 SFr 219,337 SFr 679 SFr (62) SFr 605,937 SFr 38,133 SFr (419) SFr (1,595) SFr (423,336)
[1]

(1) Forfeited amount includes earnout options forfeited during the six month periods ended June 30, 2026 and 2025. No SARs had been exercised or forfeited during the six months ended June 30, 2026 and 2025.