v3.26.1
CONDENSED CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS' EQUITY - USD ($)
$ in Thousands
Common Stock
Class A
Common Stock
Class B-1 common stock
Additional Paid-In Capital
Accumulated Deficit
Accumulated Other Comprehensive Income (Loss)
Treasury Stock
Non-Controlling interest
Class A
Class B-1 common stock
Total
Beginning balance (in shares) at Sep. 30, 2024 129,421,797 51,499,195                
Beginning balance at Sep. 30, 2024 $ 1   $ 634,851 $ (151,448) $ (1,840) $ (9,460) $ 135,035     $ 607,139
Beginning balance (in shares) at Sep. 30, 2024           786,048        
Increase (Decrease) in Stockholders' Equity                    
Net loss       (72,512)     (26,433)     (98,945)
Stock-based compensation (in shares) 553,330                  
Stock-based compensation     9,092             9,092
Class A common stock withheld related to settlement of employee taxes for stock-based compensation awards (in shares) (29,287)         29,287        
Class A common stock withheld related to settlement of employee taxes for stock-based compensation awards           $ (490)       (490)
Effect of remeasurement of non-controlling interest due to other share transactions   $ 848       (848)        
Proceeds from exercise of stock options (in shares) 506,021                  
Proceeds from exercise of stock options     1,240             1,240
Purchases of Capped Calls related to 2030 Convertible Senior Notes     (29,000)             (29,000)
Distribution to AES Grid Stability     (1,035)             (1,035)
(Loss) gain on foreign currency translation, net of tax         2,415   948     3,363
(Loss) gain on cash flow hedges, net of tax         5,508   2,191     7,699
Ending balance (in shares) at Mar. 31, 2025 130,451,861 51,499,195                
Ending balance at Mar. 31, 2025 $ 1   615,996 (223,960) 6,083 $ (9,950) 110,893     499,063
Ending balance (in shares) at Mar. 31, 2025           815,335        
Beginning balance (in shares) at Dec. 31, 2024 129,929,023 51,499,195                
Beginning balance at Dec. 31, 2024 $ 1   611,982 (192,914) 222 $ (9,856) 119,865     529,300
Beginning balance (in shares) at Dec. 31, 2024           809,423        
Increase (Decrease) in Stockholders' Equity                    
Net loss       (31,046)     (10,886)     (41,932)
Stock-based compensation (in shares) 194,744                  
Stock-based compensation     3,826             3,826
Class A common stock withheld related to settlement of employee taxes for stock-based compensation awards (in shares) (5,912)         5,912        
Class A common stock withheld related to settlement of employee taxes for stock-based compensation awards           $ (94)       (94)
Effect of remeasurement of non-controlling interest due to other share transactions     405       (405)      
Proceeds from exercise of stock options (in shares) 334,006                  
Proceeds from exercise of stock options     818             818
Purchases of Capped Calls related to 2030 Convertible Senior Notes                   (29,000)
Distribution to AES Grid Stability     (1,035)             (1,035)
(Loss) gain on foreign currency translation, net of tax         6,215   2,459     8,674
(Loss) gain on cash flow hedges, net of tax         (354)   (140)     (494)
Ending balance (in shares) at Mar. 31, 2025 130,451,861 51,499,195                
Ending balance at Mar. 31, 2025 $ 1   615,996 (223,960) 6,083 $ (9,950) 110,893     499,063
Ending balance (in shares) at Mar. 31, 2025           815,335        
Beginning balance (in shares) at Sep. 30, 2025 131,164,365 51,499,195           131,164,365 51,499,195  
Beginning balance at Sep. 30, 2025 $ 1   627,956 (199,762) 11,613 $ (10,213) 119,253     548,848
Beginning balance (in shares) at Sep. 30, 2025           850,206        
Increase (Decrease) in Stockholders' Equity                    
Net loss     (65,997)     $ (25,830) (91,827)     (91,827)
Stock-based compensation (in shares) 928,821                  
Stock-based compensation     9,230             9,230
Class A common stock withheld related to settlement of employee taxes for stock-based compensation awards (in shares) (138,156)         138,156        
Class A common stock withheld related to settlement of employee taxes for stock-based compensation awards           $ (2,717) (2,717)      
Effect of remeasurement of non-controlling interest due to other share transactions     1,190       (1,190)      
Proceeds from exercise of stock options (in shares) 826,062                  
Proceeds from exercise of stock options     2,379       2,379      
(Loss) gain on foreign currency translation, net of tax         (1,448)   (557)     (2,005)
(Loss) gain on cash flow hedges, net of tax         (4,113)   (1,612)     (5,725)
Ending balance (in shares) at Mar. 31, 2026 132,781,092 51,499,195           132,781,092 51,499,195  
Ending balance at Mar. 31, 2026 $ 1   640,755 (265,759) 6,052 $ (12,930) 90,064     458,183
Ending balance (in shares) at Mar. 31, 2026           988,362        
Beginning balance (in shares) at Dec. 31, 2025 132,220,374 51,499,195                
Beginning balance at Dec. 31, 2025 $ 1   635,552 (244,832) 9,835 $ (12,568) 100,236     488,224
Beginning balance (in shares) at Dec. 31, 2025           968,602        
Increase (Decrease) in Stockholders' Equity                    
Net loss       (20,927)     (8,312)     (29,239)
Stock-based compensation (in shares) 246,213                  
Stock-based compensation     3,942             3,942
Class A common stock withheld related to settlement of employee taxes for stock-based compensation awards (in shares) (19,760)         19,760        
Class A common stock withheld related to settlement of employee taxes for stock-based compensation awards           $ (362)       (362)
Effect of remeasurement of non-controlling interest due to other share transactions     388     (388)        
Proceeds from exercise of stock options (in shares) 334,265                  
Proceeds from exercise of stock options     873     873        
(Loss) gain on foreign currency translation, net of tax         (2,216)   (856)     (3,072)
(Loss) gain on cash flow hedges, net of tax         (1,567)   (616)     (2,183)
Ending balance (in shares) at Mar. 31, 2026 132,781,092 51,499,195           132,781,092 51,499,195  
Ending balance at Mar. 31, 2026 $ 1   $ 640,755 $ (265,759) $ 6,052 $ (12,930) $ 90,064     $ 458,183
Ending balance (in shares) at Mar. 31, 2026           988,362