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Condensed Consolidated Statements of Convertible Preferred Stock and Stockholders' Deficit (Unaudited) - USD ($)
shares in Thousands, $ in Thousands
Total
MiNK Therapeutics, Inc.
Common Stock [Member]
Additional Paid-in Capital [Member]
Additional Paid-in Capital [Member]
MiNK Therapeutics, Inc.
Treasury Stock [Member]
Accumulated Other Comprehensive Income (Loss) [Member]
Non-controlling Interest [Member]
Non-controlling Interest [Member]
MiNK Therapeutics, Inc.
Accumulated Deficit [Member]
Series A-1 convertible preferred stock [Member]
Preferred Stock [Member]
Beginning balance at Dec. 31, 2023 $ (148,382)   $ 197 $ 1,796,095     $ (955) $ 11,949   $ (1,955,668) $ 0
Balance, shares at Dec. 31, 2023     19,718               32
Net income (loss) (63,454)             (1,568)   (61,886)  
Other comprehensive income (loss) (116)           (116)        
Share-based compensation 4,196     3,477       719      
Shares sold at the market 17,171   $ 13 17,158              
Shares sold at the market, shares     1,249                
Payment of CEO payroll in shares 89     89              
Payment of CEO payroll In shares, shares     7                
Vesting of nonvested shares, shares     8                
Exercise of stock options and employee share purchases 173     166       7      
Exercise of stock options and employee share purchases, shares     12                
Ending balance at Mar. 31, 2024 (190,323)   $ 210 1,816,985     (1,071) 11,107   (2,017,554) $ 0
Balance, shares at Mar. 31, 2024     20,994               32
Beginning balance at Dec. 31, 2023 (148,382)   $ 197 1,796,095     (955) 11,949   (1,955,668) $ 0
Balance, shares at Dec. 31, 2023     19,718               32
Net income (loss) (185,465)                    
Other comprehensive income (loss) (392)                    
Ending balance at Sep. 30, 2024 (271,804)   $ 217 1,845,815     (1,347) 20,532   (2,137,021) $ 0
Balance, shares at Sep. 30, 2024     21,685               32
Beginning balance at Dec. 31, 2023 (148,382)   $ 197 1,796,095     (955) 11,949   (1,955,668) $ 0
Balance, shares at Dec. 31, 2023     19,718               32
Share-based compensation               2,812      
Ending balance at Dec. 31, 2024 (306,424)   $ 236 1,857,662     (1,398) 19,956   (2,182,880) $ 0
Balance, shares at Dec. 31, 2024     23,635               32
Beginning balance at Mar. 31, 2024 (190,323)   $ 210 1,816,985     (1,071) 11,107   (2,017,554) $ 0
Balance, shares at Mar. 31, 2024     20,994               32
Net income (loss) (54,797)             (1,716)   (53,081)  
Other comprehensive income (loss) 70           70        
Share-based compensation 9,290     8,449       841      
Shares sold at the market 1,990 $ 5,800 $ 1 1,989 $ (4,434)       $ 10,234    
Shares sold at the market, shares     117                
Issuance of warrants 6,983     6,983              
Payment of CEO payroll in shares 114     114              
Payment of CEO payroll In shares, shares     11                
Exercise of stock options 34     28       6      
Exercise of stock options, shares     2                
Vesting of nonvested shares, shares     2                
Ending balance at Jun. 30, 2024 (220,839)   $ 211 1,830,114     (1,001) 20,472   (2,070,635) $ 0
Balance, shares at Jun. 30, 2024     21,126               32
Net income (loss) (67,214)             (828)   (66,386)  
Other comprehensive income (loss) (346)           (346)        
Share-based compensation 9,280     8,399       881      
Shares sold at the market 6,776   $ 5 6,771              
Shares sold at the market, shares     503                
Payment of CEO payroll in shares 98     98              
Payment of CEO payroll In shares, shares     16                
Vesting of nonvested shares, shares     7                
Exercise of stock options and employee share purchases 441   $ 1 433       7      
Exercise of stock options and employee share purchases, shares     33                
Ending balance at Sep. 30, 2024 (271,804)   $ 217 1,845,815     (1,347) 20,532   (2,137,021) $ 0
Balance, shares at Sep. 30, 2024     21,685               32
Beginning balance at Dec. 31, 2024 (306,424)   $ 236 1,857,662     (1,398) 19,956   (2,182,880) $ 0
Balance, shares at Dec. 31, 2024     23,635               32
Net income (loss) (26,370)             (1,104)   (25,266)  
Other comprehensive income (loss) (70)           (70)        
Share-based compensation 3,184     2,587       597      
Shares sold at the market 6,343   $ 28 6,315              
Shares sold at the market, shares     2,783                
Issuance of warrants 398     398              
Payment of CEO payroll in shares 89   $ 1 88              
Payment of CEO payroll In shares, shares     33                
Issuance of shares for services 39     39       0      
Issuance of shares for services, shares     11                
Issuance of shares in connection with debt agreement 220   $ 1 219              
Issuance of shares in connection with debt agreement, shares     66                
Vesting of nonvested shares, shares     1                
Exercise of stock options and employee share purchases 44     43       1      
Exercise of stock options and employee share purchases, shares     18                
Issuance of shares for employee salaries 149     171   $ (22)          
Issuance of shares for employee salaries, shares     24     (8)          
Retirement of treasury shares       (22)   $ 22          
Retirement of treasury shares, share     (8)     8          
Ending balance at Mar. 31, 2025 (322,398)   $ 266 1,867,500     (1,468) 19,450   (2,208,146) $ 0
Balance, shares at Mar. 31, 2025     26,563               32
Beginning balance at Dec. 31, 2024 (306,424)   $ 236 1,857,662     (1,398) 19,956   (2,182,880) $ 0
Balance, shares at Dec. 31, 2024     23,635               32
Net income (loss) 7,529                    
Other comprehensive income (loss) (162)                    
Share-based compensation               1,513      
Deconsolidation of a subsidiary               (25,037)      
Ending balance at Sep. 30, 2025 (280,868)   $ 329 1,899,281     (1,560) (6,731)   (2,172,187) $ 0
Balance, shares at Sep. 30, 2025     32,814               32
Beginning balance at Mar. 31, 2025 (322,398)   $ 266 1,867,500     (1,468) 19,450   (2,208,146) $ 0
Balance, shares at Mar. 31, 2025     26,563               32
Net income (loss) (30,012)             (2,057)   (27,955)  
Other comprehensive income (loss) (36)           (36)        
Share-based compensation 3,338     2,438       900      
Shares sold at the market 12,217   $ 31 12,186              
Shares sold at the market, shares     3,136                
Payment of CEO payroll in shares 114     114              
Payment of CEO payroll In shares, shares     40                
Issuance of shares for services 26     26              
Issuance of shares for services, shares     9                
Issuance of shares in connection with debt agreement 404   $ 2 402              
Issuance of shares in connection with debt agreement, shares     179                
Vesting of nonvested shares, shares     15                
Issuance of shares for employee salaries 39   $ 1 103   $ (65)          
Issuance of shares for employee salaries, shares     91     (29)          
Retirement of treasury shares       (65)   $ 65          
Retirement of treasury shares, share     (29)     29          
Ending balance at Jun. 30, 2025 (336,308)   $ 300 1,882,704     (1,504) 18,293   (2,236,101) $ 0
Balance, shares at Jun. 30, 2025     30,004               32
Net income (loss) 63,911 $ (1,386)           (3)   63,914  
Other comprehensive income (loss) (56)           (56)        
Share-based compensation 2,808     2,792       16      
Shares sold at the market 8,966   $ 17 8,949              
Shares sold at the market, shares     1,654                
Payment of CEO payroll in shares 98     98              
Payment of CEO payroll In shares, shares     20                
Issuance of shares for services 336   $ 1 335              
Issuance of shares for services, shares     86                
Issuance of shares in connection with debt agreement 372   $ 1 371              
Issuance of shares in connection with debt agreement, shares     74                
Deconsolidation of a subsidiary (25,037)             (25,037)      
Vesting of nonvested shares     $ 1 (1)              
Vesting of nonvested shares, shares     59                
Employee share purchases 78     78              
Employee share purchases, shares     30                
Issuance of shares for certain employee bonuses 3,964   $ 14 6,034   $ (2,084)          
Issuance of shares for certain employee bonuses , shares     1,353     (466)          
Retirement of treasury shares     $ (5) (2,079)   $ 2,084          
Retirement of treasury shares, share     (466)     (466)          
Ending balance at Sep. 30, 2025 $ (280,868)   $ 329 $ 1,899,281     $ (1,560) $ (6,731)   $ (2,172,187) $ 0
Balance, shares at Sep. 30, 2025     32,814               32