v3.26.3
CONDENSED CONSOLIDATED STATEMENTS OF CHANGES IN EQUITY (Unaudited) - USD ($)
$ in Thousands
Total
Common Class A
Total Shareholders' Equity
Common Stock
Common Class A
Common Stock
Common Class C
Additional Paid-In Capital
Accumulated Deficit
Accumulated Other Comprehensive Income
Noncontrolling Interests
Common stock, beginning balance (in shares) at Dec. 31, 2024       63,077,431 841,269        
Equity, beginning balance at Dec. 31, 2024 $ 453,391   $ 446,825 $ 6 $ 0 $ 677,415 $ (235,593) $ 4,997 $ 6,566
Increase (Decrease) in Stockholders' Equity [Roll Forward]                  
Share-based compensation under the Employee Share Participation Plan and the Equity Incentive Plan 2,290   2,279     2,279     11
Conversion of MoonLake class C ordinary shares into class A ordinary shares (in shares)       111,949 (111,949)        
Conversion of MoonLake Class C Ordinary Shares into Class A Ordinary Shares 0   851     841   10 (851)
Option exercised and converted under the employee stock option plan, net of stamp duty fee (in shares)       93,347          
Options exercised and converted under the Employee Stock Option Plan, net of stamp duty fee 120   129     129     (9)
Issuance of class A ordinary shares, net of transaction costs   191,526              
Net loss (40,559)   (39,944)       (39,944)   (615)
Other comprehensive income (loss) (2,661)   (2,620)         (2,620) (41)
Common stock, ending balance (in shares) at Mar. 31, 2025       63,474,253 729,320        
Equity, end balance at Mar. 31, 2025 412,581   407,520 $ 6 $ 0 680,664 (275,537) 2,387 5,061
Common stock, beginning balance (in shares) at Dec. 31, 2024       63,077,431 841,269        
Equity, beginning balance at Dec. 31, 2024 453,391   446,825 $ 6 $ 0 677,415 (235,593) 4,997 6,566
Increase (Decrease) in Stockholders' Equity [Roll Forward]                  
Net loss (167,303)                
Other comprehensive income (loss) (4,804)                
Common stock, ending balance (in shares) at Sep. 30, 2025       63,704,544 526,178        
Equity, end balance at Sep. 30, 2025 291,191   288,906 $ 6 $ 0 689,108 (400,486) 278 2,285
Common stock, beginning balance (in shares) at Mar. 31, 2025       63,474,253 729,320        
Equity, beginning balance at Mar. 31, 2025 412,581   407,520 $ 6 $ 0 680,664 (275,537) 2,387 5,061
Increase (Decrease) in Stockholders' Equity [Roll Forward]                  
Share-based compensation under the Employee Share Participation Plan and the Equity Incentive Plan 3,309   3,298     3,298     11
Net loss (56,051)   (55,220)       (55,220)   (831)
Other comprehensive income (loss) (1,895)   (1,867)         (1,867) (28)
Common stock, ending balance (in shares) at Jun. 30, 2025       63,474,253 729,320        
Equity, end balance at Jun. 30, 2025 357,944   353,731 $ 6 $ 0 683,962 (330,757) 520 4,213
Increase (Decrease) in Stockholders' Equity [Roll Forward]                  
Share-based compensation under the Employee Share Participation Plan and the Equity Incentive Plan 3,708   3,698     3,698     10
Conversion of MoonLake class C ordinary shares into class A ordinary shares (in shares)       203,142 (203,142)        
Conversion of MoonLake Class C Ordinary Shares into Class A Ordinary Shares 0   970     968   2 (970)
Option exercised and converted under the employee stock option plan, net of stamp duty fee (in shares)       27,149          
Options exercised and converted under the Employee Stock Option Plan, net of stamp duty fee 480   480     480     0
Net loss (70,694)   (69,729)       (69,729)   (965)
Other comprehensive income (loss) (247)   (244)         (244) (3)
Common stock, ending balance (in shares) at Sep. 30, 2025       63,704,544 526,178        
Equity, end balance at Sep. 30, 2025 291,191   288,906 $ 6 $ 0 689,108 (400,486) 278 $ 2,285
Common stock, beginning balance (in shares) at Dec. 31, 2025   71,373,579   71,373,579          
Equity, beginning balance at Dec. 31, 2025     304,481 $ 7   766,781 (462,911) 604  
Increase (Decrease) in Stockholders' Equity [Roll Forward]                  
Share-based compensation under the Employee Share Participation Plan and the Equity Incentive Plan     13,355     13,355      
Option exercised and converted under the employee stock option plan, net of stamp duty fee (in shares)       69,632          
Options exercised and converted under the Employee Stock Option Plan, net of stamp duty fee     170     170      
Issuance of class A ordinary shares, net of transaction costs       354,296          
Issuance of class A ordinary shares under the sales agreement, net of transaction costs (in shares)       336,559          
Issuance of Class A Ordinary Shares under the Sales Agreement, net of transaction costs     6,007     6,007      
Net loss     (69,707)       (69,707)    
Other comprehensive income (loss)     (282)         (282)  
Common stock, ending balance (in shares) at Mar. 31, 2026       72,134,066          
Equity, end balance at Mar. 31, 2026     254,024 $ 7   786,313 (532,618) 322  
Common stock, beginning balance (in shares) at Dec. 31, 2025   71,373,579   71,373,579          
Equity, beginning balance at Dec. 31, 2025     304,481 $ 7   766,781 (462,911) 604  
Increase (Decrease) in Stockholders' Equity [Roll Forward]                  
Net loss (211,057)                
Other comprehensive income (loss) 1,684                
Common stock, ending balance (in shares) at Sep. 30, 2026   85,106,685   85,106,685 0        
Equity, end balance at Sep. 30, 2026     381,628 $ 8   1,053,301 (673,968) 2,287  
Common stock, beginning balance (in shares) at Mar. 31, 2026       72,134,066          
Equity, beginning balance at Mar. 31, 2026     254,024 $ 7   786,313 (532,618) 322  
Increase (Decrease) in Stockholders' Equity [Roll Forward]                  
Share-based compensation under the Employee Share Participation Plan and the Equity Incentive Plan     2,546     2,546      
Option exercised and converted under the employee stock option plan, net of stamp duty fee (in shares)       45,000          
Options exercised and converted under the Employee Stock Option Plan, net of stamp duty fee     551     551      
Issuance of class A ordinary shares under the sales agreement, net of transaction costs (in shares)       2,427,619          
Issuance of Class A Ordinary Shares under the Sales Agreement, net of transaction costs     44,312     44,312      
Issuance of class A ordinary shares and pre-funded warrants under the 2026 offering, net of transaction costs (in shares)       9,000,000          
Issuance of Class A Ordinary Shares and Pre-Funded Warrants under the 2026 Offering, net of transaction costs     189,759 $ 1   189,758      
Stamp duty fees for capital injection from MoonLake to MoonLake AG     (1,500)     (1,500)      
Net loss     (61,805)       (61,805)    
Other comprehensive income (loss)     308         308  
Common stock, ending balance (in shares) at Jun. 30, 2026       83,606,685          
Equity, end balance at Jun. 30, 2026     428,195 $ 8   1,021,980 (594,423) 630  
Increase (Decrease) in Stockholders' Equity [Roll Forward]                  
Share-based compensation under the Employee Share Participation Plan and the Equity Incentive Plan     2,849     2,849      
Issuance of class A ordinary shares under the sales agreement, net of transaction costs (in shares)       1,500,000          
Issuance of Class A Ordinary Shares under the Sales Agreement, net of transaction costs     28,472     28,472      
Net loss (79,545)   (79,545)       (79,545)    
Other comprehensive income (loss) $ 1,657   1,657         1,657  
Common stock, ending balance (in shares) at Sep. 30, 2026   85,106,685   85,106,685 0        
Equity, end balance at Sep. 30, 2026     $ 381,628 $ 8   $ 1,053,301 $ (673,968) $ 2,287