A reconciliation of the average number of common and potential common shares outstanding used in the calculations of basic and diluted Net income (loss) per share follows (in millions, shares in thousands):



	Three Months Ended June 30,				Six Months Ended June 30,
	2026		2025		2026		2025
Numerator (basic and diluted):
Net income (loss)	$	3.6	$	(9.5)	$	(8.1)	$	(435.0)
Less: Dividends to participating securities	(0.2)		(0.1)		(0.4)		(0.3)
Net income (loss) attributable to Common Stockholders	$	3.4	$	(9.6)	$	(8.5)	$	(435.3)

Denominator:
Average number of common shares outstanding	55,118.0		54,624.9		54,974.0		54,536.5
Effect of dilutive stock-based compensation(1)	561.2		—		—		—
Average number of common and potential common shares outstanding	55,679.2		54,624.9		54,974.0		54,536.5

(1)For the six months ended June 30, 2026, Diluted income (loss) per share excludes 810,000 weighted average potential common shares as their inclusion would be anti-dilutive. For the three and six months ended June 30, 2025, Diluted loss per share excludes an immaterial amount of weighted average potential common shares as their inclusion would be anti-dilutive