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Earnings (Loss) Per Share | 3 Months Ended
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Sep. 30, 2025
Earnings Per Share [Abstract] |
Earnings (Loss) Per Share | Earnings (Loss) Per Share Basic earnings (loss) per common share is computed by dividing net earnings (loss) available to the common shareholders by the weighted-average number of shares of common stock outstanding during the period. Diluted earnings (loss) per common share is computed by dividing the diluted earnings (loss) available to the common shareholders by the weighted-average number of shares of common stock and potentially dilutive shares of common stock outstanding during the period. The dilutive effect of equity awards is calculated based on the average stock price for each fiscal period, using the treasury stock method. For the three months ended September 30, 2025, diluted shares outstanding include the dilutive effect of the potential shares of Coherent Common Stock issuable from performance and restricted shares. For the three months ended September 30, 2024, as the Company was in a net loss position, there were no dilutive shares. Potentially dilutive shares whose effect would have been anti-dilutive are excluded from the computation of diluted earnings (loss) per common share. For the three months ended September 30, 2025, diluted earnings per share included the potentially dilutive effect of the shares of Coherent Common Stock issuable upon conversion of the Series B Convertible Preferred Stock (under the If-Converted method), as their effects were dilutive. For the three months ended September 30, 2024, diluted loss per share excluded the potentially dilutive effect of the performance and restricted shares, calculated based on the average stock price for each fiscal period, using the treasury stock method, as well as the shares of Coherent Common Stock issuable upon conversion of the Series B Convertible Preferred Stock (under the If-Converted method), as their effects were anti-dilutive. The following is a reconciliation of the numerators and denominators of the basic and diluted earnings (loss) per share computations (000, except per share data):
| Three Months Ended September 30, |  |
| 2025 |  | 2024 |  |  |  |
Numerator |  |  |  |  |  |  |
Net earnings attributable to Coherent Corp. | $ | 226,349 |  |  | $ | 25,887 |  |  |  |  |
Deduct Series B dividends and deemed dividends | (33,479) |  |  | (31,833) |  |  |  |  |
Basic earnings (loss) available to common shareholders | $ | 192,870 |  |  | $ | (5,946) |  |  |  |  |
Effect of dilutive securities: |  |  |  |  |  |  |
Add back Series B preferred stock dividends | $ | 31,751 |  |  | $ | — |  |  |  |  |
Add back Series B deemed dividends | 1,728 |  |  | — |  |  |  |  |
Diluted earnings (loss) available to common shareholders | $ | 226,349 |  |  | $ | (5,946) |  |  |  |  |
Denominator |  |  |  |  |  |  |
Weighted average shares | 156,156 |  |  | 153,626 |  |  |  |  |
Effect of dilutive securities: |  |  |  |  |  |  |
Common stock equivalents | 4,644 |  |  | — |  |  |  |  |
Series B Redeemable Preferred Stock | 29,884 |  |  | — |  |  |  |  |
Diluted weighted average common shares | 190,684 |  |  | 153,626 |  |  |  |  |
Basic earnings (loss) per common share | $ | 1.24 |  |  | $ | (0.04) |  |  |  |  |
Diluted earnings (loss) per common share | $ | 1.19 |  |  | $ | (0.04) |  |  |  |  |
The following table presents potential shares of common stock excluded from the calculation of diluted net earnings (loss) per share, as their effect would have been anti-dilutive (000):
| Three Months Ended September 30, |  |
| 2025 |  | 2024 |  |  |  |
Common stock equivalents | — |  |  | 4,944 |  |  |  |  |
Series B Convertible Preferred Stock | — |  |  | 28,563 |  |  |  |  |
Total anti-dilutive shares | — |  |  | 33,507 |  |  |  |  |

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