Basic earnings per share are computed using the weighted-average number of ordinary shares outstanding during the period. Diluted earnings per share are computed using the weighted-average number of ordinary shares and ordinary share equivalents outstanding during the period. Ordinary share equivalents represent the dilutive effect of outstanding equity-based awards.


	Three months ended June 30,				Six months ended June 30,
(in millions of U.S. dollars except share and per share amounts )	2025		2024		2025		2024
Numerator:
Net income attributable to equity holders of Constellium	36		76		73		97
Denominator:
Basic - weighted-average ordinary shares outstanding	140,820,828		146,271,938		141,665,123		146,534,099
Dilutive effect of non-vested restricted stock units and performance-based restricted stock units	1,423,571		2,960,935		1,508,801		3,187,852
Diluted - weighted-average ordinary shares, of restricted stock units and performance-based restricted stock units	142,244,399		149,232,873		143,173,924		149,721,951
Basic earnings per share	$	0.25	$	0.52	$	0.51	$	0.66
Diluted earnings per share	$	0.25	$	0.51	$	0.51	$	0.65

For the three and six months ended June 30, 2025, and 2024, no ordinary shares assuming exercise of equity-based awards were excluded from the computation of diluted earnings per share because the effect of their exercise would be anti-dilutive.