v3.26.1
STATEMENTS OF CONSOLIDATED STOCKHOLDERS' EQUITY (UNAUDITED) - USD ($)
$ in Millions
Total
Common Stock
Additional Paid in Capital
Retained Earnings
Treasury Stock
Accumulated Other Comprehensive Income (Loss)
Beginning balance at Dec. 31, 2024 $ 743.1 $ 0.2 $ 1,117.0 $ 81.3 $ (475.9) $ 20.5
Beginning balance (shares) at Dec. 31, 2024   16,095,898        
Net income 21.6     21.6    
Other comprehensive income (loss), net of tax 2.6         2.6
Common shares issued (including impacts from Long-Term Incentive programs) (shares)   84,115        
Cancellation of shares to cover tax withholdings upon common shares issued (1.8)   (1.8)      
Cancellation of shares to cover tax withholdings upon common shares issued (shares)   (25,637)        
Cash dividends declared [1] (12.9)     (12.9)    
Amortization of unearned equity compensation 4.2   4.2      
Ending balance at Mar. 31, 2025 756.8 $ 0.2 1,119.4 90.0 (475.9) 23.1
Ending balance (shares) at Mar. 31, 2025   16,154,376        
Beginning balance at Dec. 31, 2024 743.1 $ 0.2 1,117.0 81.3 (475.9) 20.5
Beginning balance (shares) at Dec. 31, 2024   16,095,898        
Net income [2] 44.8          
Other comprehensive income (loss), net of tax 6.7          
Ending balance at Jun. 30, 2025 776.0 $ 0.2 1,124.1 100.4 (475.9) 27.2
Ending balance (shares) at Jun. 30, 2025   16,177,739        
Beginning balance at Mar. 31, 2025 756.8 $ 0.2 1,119.4 90.0 (475.9) 23.1
Beginning balance (shares) at Mar. 31, 2025   16,154,376        
Net income 23.2     23.2    
Other comprehensive income (loss), net of tax 4.1         4.1
Common shares issued (including impacts from Long-Term Incentive programs) 0.4   0.4      
Common shares issued (including impacts from Long-Term Incentive programs) (shares)   23,582        
Cancellation of shares to cover tax withholdings upon common shares issued (shares)   (219)        
Cash dividends declared [1] (12.8)     (12.8)    
Amortization of unearned equity compensation 4.3   4.3      
Ending balance at Jun. 30, 2025 776.0 $ 0.2 1,124.1 100.4 (475.9) 27.2
Ending balance (shares) at Jun. 30, 2025   16,177,739        
Beginning balance at Dec. 31, 2025 $ 826.1 $ 0.2 1,132.5 142.5 (475.9) 26.8
Beginning balance (shares) at Dec. 31, 2025 16,210,443 16,210,443 [3]        
Net income $ 62.5     62.5    
Other comprehensive income (loss), net of tax 5.2         5.2
Common shares issued (including impacts from Long-Term Incentive programs) (shares) [3]   199,737        
Cancellation of shares to cover tax withholdings upon common shares issued (8.8)   (8.8)      
Cancellation of shares to cover tax withholdings upon common shares issued (shares) [3]   (70,056)        
Cash dividends declared [4] (13.6)     (13.6)    
Amortization of unearned equity compensation 5.9   5.9      
Ending balance at Mar. 31, 2026 877.3 $ 0.2 1,129.6 191.4 (475.9) 32.0
Ending balance (shares) at Mar. 31, 2026 [3]   16,340,124        
Beginning balance at Dec. 31, 2025 $ 826.1 $ 0.2 1,132.5 142.5 (475.9) 26.8
Beginning balance (shares) at Dec. 31, 2025 16,210,443 16,210,443 [3]        
Net income [2] $ 159.3          
Other comprehensive income (loss), net of tax (17.1)          
Ending balance at Jun. 30, 2026 $ 943.8 $ 0.2 1,134.4 275.4 (475.9) 9.7
Ending balance (shares) at Jun. 30, 2026 16,349,092 16,349,092 [3]        
Beginning balance at Mar. 31, 2026 $ 877.3 $ 0.2 1,129.6 191.4 (475.9) 32.0
Beginning balance (shares) at Mar. 31, 2026 [3]   16,340,124        
Net income 96.8     96.8    
Other comprehensive income (loss), net of tax (22.3)         (22.3)
Common shares issued (including impacts from Long-Term Incentive programs) 0.4   0.4      
Common shares issued (including impacts from Long-Term Incentive programs) (shares) [3]   9,230        
Cancellation of shares to cover tax withholdings upon common shares issued (0.1)   (0.1)      
Cancellation of shares to cover tax withholdings upon common shares issued (shares) [3]   (262)        
Cash dividends declared [4] (12.8)     (12.8)    
Amortization of unearned equity compensation 4.5   4.5      
Ending balance at Jun. 30, 2026 $ 943.8 $ 0.2 $ 1,134.4 $ 275.4 $ (475.9) $ 9.7
Ending balance (shares) at Jun. 30, 2026 16,349,092 16,349,092 [3]        
[1] Dividends declared per common share were $0.77 for the quarters ended March 31, 2025 and June 30, 2025.
[2] See Note 11 for supplemental cash flow information.
[3] At June 30, 2026, 787,950 shares were available for awards under the Kaiser Aluminum Corporation 2021 Equity and Incentive Compensation Plan, as amended and restated.
[4] Dividends declared per common share were $0.77 for the quarters ended March 31, 2026 and June 30, 2026.