Net Income Per Share Information

6 Months Ended

Jun. 30, 2013

Net Income Per Share Information

11. NET INCOME PER SHARE INFORMATION

The following table sets forth the calculation of the numerator and denominator used in the computation of basic and diluted net income per common share attributable to the Company’s common stockholders for the three and six months ended June 30, 2013 and 2012:

	Three months ended June 30,				Six months ended June 30,
	2013		2012		2013		2012
Numerator:
Net income attributable to Waste Connections for basic and diluted earnings per share	$	43,967	$	42,415	$	85,523	$	73,719
Denominator:
Basic shares outstanding		123,610,969		123,466,890		123,496,519		119,327,512
Dilutive effect of stock options and warrants		191,872		315,329		196,993		327,538
Dilutive effect of restricted stock units		277,582		245,398		299,799		296,989
Diluted shares outstanding		124,080,423		124,027,617		123,993,311		119,952,039

For the three months ended June 30, 2013 and 2012, stock options and warrants to purchase 993 and 72,324 shares of common stock, respectively, were excluded from the computation of diluted earnings per share as they were anti-dilutive. For the six months ended June 30, 2013 and 2012, stock options and warrants to purchase 993 and 72,324 shares of common stock, respectively, were excluded from the computation of diluted earnings per share as they were anti-dilutive.