The calculations of the Company’s basic and diluted net income per share and weighted average shares outstanding for the three month and nine month periods ended September 30, 2013 and 2012 are presented below:


	Three Months Ended September 30,				Nine Months Ended September 30,
	2013		2012		2013		2012
Net income attributable to Lazard Ltd	$	60,282		$33,301		$106,995		$89,674
Add - adjustment associated with Class A common stock issuable on a non-contingent basis		–		3		–		6

Net income attributable to Lazard Ltd - basic		60,282		33,304		106,995		89,680
Add - dilutive effect, as applicable, of:
Adjustments to income relating to interest expense and changes in net income attributable to noncontrolling interests resulting from assumed Class A common stock issuances in connection with share-based incentive compensation and exchangeable interests, net of tax		316		1,804		787		4,680

Net income attributable to Lazard Ltd - diluted		$60,598		$35,108		$107,782		$94,360


Weighted average number of shares of Class A common stock outstanding		121,441,956		114,689,712		119,797,545		116,949,317
Add - adjustment for shares of Class A common stock issuable on a non-contingent basis		757,998		913,639		758,502		740,087

Weighted average number of shares of Class A common stock outstanding - basic		122,199,954		115,603,351		120,556,047		117,689,404
Add - dilutive effect, as applicable, of:
Weighted average number of incremental shares of Class A common stock issuable from share-based incentive compensation and exchangeable interests		12,042,190		19,776,685		12,617,953		17,847,646

Weighted average number of shares of Class A common stock outstanding - diluted		134,242,144		135,380,036		133,174,000		135,537,050

Net income attributable to Lazard Ltd per share of Class A common stock:
Basic		$0.49		$0.29		$0.89		$0.76

Diluted		$0.45		$0.26		$0.81		$0.70