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Earnings Per Share | 3 Months Ended
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Mar. 31, 2025
Earnings Per Share [Abstract] |
Earnings Per Share | Earnings Per Share Basic earnings per share (“EPS”) is computed by dividing net income attributable to Amkor common stockholders by the weighted-average number of common shares outstanding during the period. The weighted-average number of common shares outstanding is reduced for treasury stock. Diluted EPS is computed based on the weighted-average number of common shares outstanding plus the effect of dilutive potential common shares outstanding during the period. Dilutive potential common shares include outstanding stock options, performance-vested restricted stock units (“PSUs”) and time-vested restricted stock units (“RSUs”). The following table summarizes the computation of basic and diluted EPS:
| For the Three Months Ended March 31, |  |
| 2025 |  | 2024 |  |  |  |
| (In thousands, except per share data)
Net income attributable to Amkor common stockholders | $ | 21,128 |  |  | $ | 58,897 |  |  |  |  |
Weighted-average number of common shares outstanding - basic | 246,854 |  |  | 246,008 |  |  |  |  |
Effect of dilutive securities: |  |  |  |  |  |  |
Share-based awards | 991 |  |  | 1,606 |  |  |  |  |
Weighted-average number of common shares outstanding - diluted | 247,845 |  |  | 247,614 |  |  |  |  |
Net income attributable to Amkor per common share: |  |  |  |  |  |  |
Basic | $ | 0.09 |  |  | $ | 0.24 |  |  |  |  |
Diluted | 0.09 |  |  | 0.24 |  |  |  |  |
The following table summarizes the potential shares of common stock that were excluded from diluted EPS because the effect of including these potential shares was anti-dilutive:
| For the Three Months Ended March 31, |  |
| 2025 |  | 2024 |  |  |  |
| (In thousands)
Share-based awards | 38 |  |  | 11 |  |  |  |  |

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