A reconciliation of the numerator and denominator used in the calculation of basic and diluted earnings per common share is as follows (in millions, except per share amounts):


	Three Months Ended September 30, 2026		Three Months Ended September 30, 2025		Nine Months Ended September 30, 2026		Nine Months Ended September 30, 2025
Net earnings attributable to Mirion Technologies, Inc. shareholders	$	7.4	$	2.9	$	11.7	$	11.5

Weighted average common shares outstanding — basic	242.390		224.583		243.864		225.084
Effect of potentially dilutive securities — stock-based awards	0.178		0.758		0.358		0.844
Effect of potentially dilutive securities — convertible debt	30.321		30.321		30.321		30.321
Weighted average common shares outstanding — diluted	272.889		255.662		274.543		256.249

Net earnings per common share attributable to Mirion Technologies, Inc. — basic	$	0.03	$	0.01	$	0.05	$	0.05
Net earnings per common share attributable to Mirion Technologies, Inc. — diluted	$	0.03	$	0.01	$	0.04	$	0.04