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Net Income (Loss) per Share | 9 Months Ended
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Sep. 30, 2024
Earnings Per Share [Abstract] |
Net Income (Loss) per Share | 9. Net Income (Loss) per Share The following table sets forth the computation of basic and diluted net income (loss) per share (in thousands, except per share amounts):
|  | Three Months Ended |  |  | Nine Months Ended |
|  | September 30, |  |  | September 30, |
|  | 2024 |  |  | 2023 |  |  | 2024 |  |  | 2023 |
Numerator: |  |  |  |  |  |  |  |  |  |  |  |
Net income (loss) attributable to Vicor Corporation |  | $ | 11,552 |  |  | $ | 16,582 |  |  | $ | (4,117 | ) |  | $ | 44,927 |
Denominator: |  |  |  |  |  |  |  |  |  |  |  |
Denominator for basic net income (loss) per share-weighted average shares (1) |  |  | 45,117 |  |  |  | 44,433 |  |  |  | 44,829 |  |  |  | 44,275 |
Effect of dilutive securities: |  |  |  |  |  |  |  |  |  |  |  |
Employee stock options (2) |  |  | 57 |  |  |  | 754 |  |  |  | — |  |  |  | 725 |
Denominator for diluted net income (loss) per share – adjusted weighted-average shares and assumed conversions |  |  | 45,174 |  |  |  | 45,187 |  |  |  | 44,829 |  |  |  | 45,000 |
Basic net income (loss) per share |  | $ | 0.26 |  |  | $ | 0.37 |  |  | $ | (0.09 | ) |  | $ | 1.01 |
Diluted net income (loss) per share |  | $ | 0.26 |  |  | $ | 0.37 |  |  | $ | (0.09 | ) |  | $ | 1.00 |
(1) Denominator represents the weighted average number of shares of Common Stock and Class B Common Stock outstanding. (2) Options to purchase 2,875,975 and 2,971,033 shares of Common Stock for the three and nine months ended September 30, 2024, respectively, were not included in the calculation of net income (loss) per share as the effect would have been antidilutive. Options to purchase 1,012,045 and 1,473,749 shares of Common Stock for the three and nine months ended September 30, 2023, respectively, were not included in the calculation of net income per share as the effect would have been antidilutive.

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