10.

Net Loss per Share Attributable to Sterling Common Stockholders

Basic net loss per share attributable to Sterling common stockholders is computed by dividing net loss attributable to Sterling common stockholders by the weighted average number of common shares outstanding during the period. Diluted net loss per common share attributable to Sterling common stockholders is the same as basic net loss per share attributable to Sterling common stockholders but includes dilutive unvested stock using the treasury stock method. The following table reconciles the numerators and denominators of the basic and diluted per common share computations for net loss attributable to Sterling common stockholders (amounts in thousands, except per share data):

	Three Months Ended March 31,
	2017			2016
Numerator:
Net loss attributable to Sterling common stockholders	$	(2,257	)	$	(7,328	)

Denominator:
Weighted average common shares outstanding — basic		25,022			19,760
Shares for dilutive unvested stock		--			--
Weighted average common shares outstanding and incremental shares assumed repurchased— diluted		25,022			19,760
Basic and diluted loss per share attributable to Sterling common stockholders	$	(0.09	)	$	(0.37	)

In accordance with the treasury stock method,

0.5

million and

0.3

million shares of unvested common stock were excluded from the diluted weighted average common shares outstanding for the

three

months ended

March

31,

2017

and

2016,

respectively, as the Company incurred a loss during these periods and the impact of such shares would have been antidilutive.