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Earnings per share available to SiriusPoint common shareholders | 3 Months Ended
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Mar. 31, 2025
Earnings Per Share [Abstract] |
Earnings per share available to SiriusPoint common shareholders | 15. Earnings per share available to SiriusPoint common shareholders The following sets forth the computation of basic and diluted earnings per share available to SiriusPoint common shareholders for the three months ended March 31, 2025 and 2024:
|  | 2025 |  | 2024 |  |  |  |
Weighted-average number of common shares outstanding: |  |  |  |  |  |  |
| Basic number of common shares outstanding | 115,975,961 |  |  | 168,934,114 |  |  |  |  |
| Dilutive effect of restricted share awards and units | 1,503,925 |  |  | 2,811,088 |  |  |  |  |
| Dilutive effect of options | 1,075,280 |  |  | 1,030,515 |  |  |  |  |
| Dilutive effect of warrants | — |  |  | 1,605,246 |  |  |  |  |
| Diluted number of common shares outstanding | 118,555,166 |  |  | 174,380,963 |  |  |  |  |
Basic earnings per common share: |  |  |  |  |  |  |
| Net income available to SiriusPoint common shareholders | $ | 57.6 |  |  | $ | 90.8 |  |  |  |  |
| Net income allocated to SiriusPoint participating shareholders | (0.1) |  |  | (6.1) |  |  |  |  |
| Net income allocated to SiriusPoint common shareholders | $ | 57.5 |  |  | $ | 84.7 |  |  |  |  |
| Basic earnings per share available to SiriusPoint common shareholders | $ | 0.50 |  |  | $ | 0.50 |  |  |  |  |
Diluted earnings per common share: |  |  |  |  |  |  |
| Net income available to SiriusPoint common shareholders | $ | 57.6 |  |  | $ | 90.8 |  |  |  |  |
| Net income allocated to SiriusPoint participating shareholders | (0.1) |  |  | (6.1) |  |  |  |  |
| Net income allocated to SiriusPoint common shareholders | $ | 57.5 |  |  | $ | 84.7 |  |  |  |  |
| Diluted earnings per share available to SiriusPoint common shareholders | $ | 0.49 |  |  | $ | 0.49 |  |  |  |  |
For the three months ended March 31, 2025 and 2024, no amounts were excluded from the computation of diluted earnings per share attributable to SiriusPoint common shareholders.

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