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Consolidated Statements of Convertible Preferred Stock and Stockholders' Equity (Deficit) - 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]
Stockholders' Equity, Beginning Balance at Dec. 31, 2021 $ 47,909   $ 128 $ 1,522,653     $ 1,492 $ 13,469   $ (1,489,833) $ 0
Balance, shares at Dec. 31, 2021     12,844               32
Net loss (230,656)             (10,582)   (220,074)  
Other comprehensive loss (577)           (577)        
Share-based compensation 18,395     15,200       3,195      
Vesting of nonvested shares, shares     12                
Shares sold at the market 99,211   $ 24 99,187              
Shares sold at the market, shares     2,257                
Issuance of subsidiary shares to noncontrolling interest 294             294      
Issuance of warrants, net of expenses 2,332     2,332              
Issuance of shares for services 138     138              
Issuance of shares for services, shares     2                
Issuance of director deferred shares 19     19              
Exercise of stock options and employee share purchases 898     898              
Exercise of stock options and employee share purchases, shares     22                
Issuance of shares for milestone achievement 500     500              
Issuance of shares for milestone achievement, shares     9                
Issuance of shares for employee bonus 3,017   $ 2 6,647   $ (3,632)          
Issuance of shares for employee bonus, Shares     205     (1,447)          
Retirement of treasury shares 3,618   $ (1) (13)   $ 3,632          
Retirement of treasury shares, share     (72)     1,447          
Stockholders' Equity, Ending Balance at Dec. 31, 2022 (54,902)   $ 153 1,647,561     915 6,376   (1,709,907) $ 0
Balance, shares at Dec. 31, 2022     15,279               32
Net loss (257,437)             (11,676)   (245,761)  
Other comprehensive loss (1,870)           (1,870)        
Share-based compensation 22,351     18,526       3,825      
Vesting of nonvested shares, shares     5                
Shares sold at the market 133,157   $ 42 133,115              
Shares sold at the market, shares     4,221                
Issuance of subsidiary shares to noncontrolling interest 1,011             1,011      
Payment of CEO payroll in shares 146     146              
Payment of CEO payroll In shares, shares     8                
Issuance of shares for services 690     690              
Issuance of shares for services, shares     20                
Issuance of director deferred shares 983   $ 1 982              
Issuance of director deferred shares, shares     13                
Exercise of stock options and employee share purchases 807     736       71      
Exercise of stock options and employee share purchases, shares     25                
MiNK stock dividend       (14,888)       14,888      
MiNK stock purchases (606)     1,940       (2,546)      
Issuance of shares for employee bonus 3,233   $ 2 7,303   $ (4,072)          
Issuance of shares for employee bonus, Shares     232     (17)          
Retirement of treasury shares 4,055   $ (1) (16)   $ 4,072          
Retirement of treasury shares, share     (83)     17          
Stockholders' Equity, Ending Balance at Dec. 31, 2023 (148,382)   $ 197 1,796,095     (955) 11,949   (1,955,668) $ 0
Balance, shares at Dec. 31, 2023     19,720               32
Net loss (232,271)             (5,059)   (227,212)  
Other comprehensive loss (443)           (443)        
Share-based compensation 27,327     24,515       2,812      
Vesting of nonvested shares, shares     17                
Shares sold at the market 33,023 $ 5,800 $ 36 32,987 $ (4,434)       $ 10,234    
Shares sold at the market, shares     3,632                
Payment of CEO payroll in shares 416   $ 1 415              
Payment of CEO payroll In shares, shares     66                
Issuance of shares in connection with debt agreement 476   $ 2 474              
Issuance of shares in connection with debt agreement, shares     153                
Issuance of warrants, net of expenses 6,983     6,983              
Exercise of stock options and employee share purchases 647     627       20      
Exercise of stock options and employee share purchases, shares     47                
Stockholders' Equity, 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