Earnings Per Share

3 Months Ended

Mar. 31, 2024

Earnings Per Share

Earnings Per Share

Note 9—Earnings Per Share

Basic earnings per common share (“EPS”) is computed by dividing net income attributable to Amphenol Corporation by the weighted average number of common shares outstanding. Diluted EPS is computed by dividing net income attributable to Amphenol Corporation by the weighted average number of outstanding common shares, including dilutive common shares, the dilutive effect of which relates to stock options. The following is a reconciliation of the

basic weighted average common shares outstanding to diluted weighted average common shares outstanding, which were used to calculate the earnings per share (basic and diluted) for the three months ended March 31, 2024 and 2023:

	Three Months Ended
	March 31,
(dollars and shares in millions, except per share data)	2024		2023
Net income attributable to Amphenol Corporation stockholders	$	548.7	$	439.2
Weighted average common shares outstanding — Basic		600.0		595.1
Effect of dilutive stock options		27.9		24.8
Weighted average common shares outstanding — Diluted		627.9		619.9
Net income attributable to Amphenol Corporation per common share — Basic	$	0.91	$	0.74
Net income attributable to Amphenol Corporation per common share — Diluted	$	0.87	$	0.71

Excluded from the computations above were anti-dilutive common shares (primarily related to outstanding stock options) of 0.1 million and 7.1 million for the three months ended March 31, 2024 and 2023, respectively.