v3.26.1
Condensed Consolidated Statements of Stockholders' Equity - USD ($)
shares in Thousands, $ in Thousands
Total
Treasury stock
Additional paid-in capital
Accumulated Deficit
Accumulated other comprehensive income (loss)
Noncontrolling interests
Common Class A
Common Stock
Common Class B
Common Stock
Balance, beginning of period (in shares) at Dec. 31, 2024             214,974 35,514
Increase (Decrease) in Stockholders' Equity [Roll Forward]                
Issuance of common stock from equity incentive plans (in shares)             8,101  
Shares withheld for net settlement of share-based awards (in shares)             (163)  
Balance, end of period (in shares) at Jun. 30, 2025             222,912 35,514
Balance, beginning of period at Dec. 31, 2024   $ (2,923) $ 3,869,617 $ (2,851,283) $ (1,827) $ 2,839 $ 2 $ 0
Increase (Decrease) in Stockholders' Equity [Roll Forward]                
Stock-based compensation expense     55,357          
Issuance of common stock from equity incentive plans and stock purchase agreement     29,295          
Net settlement for taxes related to share-based awards     (2,289)          
Net income (loss) attributable to Oscar Health, Inc. $ 47,015     46,910        
Unrealized gains (loss) on investments, net 15,547       15,547      
Comprehensive income (loss) attributable to noncontrolling interests 105         105    
Balance, end of period at Jun. 30, 2025 1,161,350 (2,923) 3,951,980 (2,804,373) 13,720 2,944 $ 2 $ 0
Balance, beginning of period (in shares) at Mar. 31, 2025             217,983 35,514
Increase (Decrease) in Stockholders' Equity [Roll Forward]                
Issuance of common stock from equity incentive plans (in shares)             5,034  
Shares withheld for net settlement of share-based awards (in shares)             (105)  
Balance, end of period (in shares) at Jun. 30, 2025             222,912 35,514
Balance, beginning of period at Mar. 31, 2025   (2,923) 3,902,373 (2,576,012) 9,601 3,074 $ 2 $ 0
Increase (Decrease) in Stockholders' Equity [Roll Forward]                
Stock-based compensation expense     27,474          
Issuance of common stock from equity incentive plans and stock purchase agreement     23,568          
Net settlement for taxes related to share-based awards     (1,435)          
Net income (loss) attributable to Oscar Health, Inc. (228,491)     (228,361)        
Unrealized gains (loss) on investments, net 4,119       4,119      
Comprehensive income (loss) attributable to noncontrolling interests (130)         (130)    
Balance, end of period at Jun. 30, 2025 1,161,350 (2,923) 3,951,980 (2,804,373) 13,720 2,944 $ 2 $ 0
Balance, beginning of period (in shares) at Dec. 31, 2025             261,851 35,838
Increase (Decrease) in Stockholders' Equity [Roll Forward]                
Issuance of common stock from equity incentive plans (in shares)             11,285 660
Conversion of Class B shares to Class A shares (in shares)             1,274 1,274
Shares withheld for net settlement of share-based awards (in shares)             (1,000)  
Balance, end of period (in shares) at Jun. 30, 2026             273,410 35,224
Balance, beginning of period at Dec. 31, 2025 980,735 (2,923) 4,256,972 (3,294,434) 18,030 3,087 $ 3 $ 0
Increase (Decrease) in Stockholders' Equity [Roll Forward]                
Stock-based compensation expense     41,875          
Issuance of common stock from equity incentive plans and stock purchase agreement     29,904          
Net settlement for taxes related to share-based awards     (11,920)          
Net income (loss) attributable to Oscar Health, Inc. 1,040,851     1,040,804        
Unrealized gains (loss) on investments, net (26,280)       (26,280)      
Comprehensive income (loss) attributable to noncontrolling interests 47         47    
Balance, end of period at Jun. 30, 2026 2,055,165 (2,923) 4,316,831 (2,253,630) (8,250) 3,134 $ 3 $ 0
Balance, beginning of period (in shares) at Mar. 31, 2026             263,552 35,591
Increase (Decrease) in Stockholders' Equity [Roll Forward]                
Issuance of common stock from equity incentive plans (in shares)             9,831 660
Conversion of Class B shares to Class A shares (in shares)             1,027 1,027
Shares withheld for net settlement of share-based awards (in shares)             (1,000)  
Balance, end of period (in shares) at Jun. 30, 2026             273,410 35,224
Balance, beginning of period at Mar. 31, 2026   (2,923) 4,277,292 (2,615,438) 5,000 3,114 $ 3 $ 0
Increase (Decrease) in Stockholders' Equity [Roll Forward]                
Stock-based compensation expense     22,694          
Issuance of common stock from equity incentive plans and stock purchase agreement     28,765          
Net settlement for taxes related to share-based awards     (11,920)          
Net income (loss) attributable to Oscar Health, Inc. 361,828     361,808        
Unrealized gains (loss) on investments, net (13,250)       (13,250)      
Comprehensive income (loss) attributable to noncontrolling interests 20         20    
Balance, end of period at Jun. 30, 2026 $ 2,055,165 $ (2,923) $ 4,316,831 $ (2,253,630) $ (8,250) $ 3,134 $ 3 $ 0