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Earnings Per Share of Common Stock (Tables)

12 Months Ended

Dec. 31, 2021

Reconciliation of Earnings and Share Data used in Basic and Diluted (Losses) Earnings per Share Computations

The following table presents a reconciliation of the earnings and share data used in the basic and diluted earnings per share computations for 2021, 2020 and 2019:


	Year Ended December 31,
	2021		2020			2019
	($ in millions, except share amounts)
Net earnings available to Alleghany stockholders	$	1,034.9	$	101.8		$	857.8
Effect of dilutive securities		—		(1.2	)		—
Income available to common stockholders for diluted earnings per share	$	1,034.9	$	100.6		$	857.8

Weighted average common shares outstanding applicable to basic earnings per share		13,853,780		14,257,793			14,431,892
Effect of dilutive securities		7,167		25,825			11,584
Adjusted weighted average common shares outstanding applicable to diluted earnings per share		13,860,947		14,283,618			14,443,476

Contingently issuable shares(1)		62,264		34,148			48,468

(1)

Contingently issuable shares were potentially available in the periods presented, but were not included in the diluted earnings per share computations because the impact was anti-dilutive to the earnings per share calculation.