Net Loss per Share Attributable to Common Stock

3 Months Ended

Mar. 31, 2020

Net Loss per Share Attributable to Common Stock

Net loss per share attributable to common stock is computed by dividing the net loss attributable to common stock by the weighted-average number of common shares outstanding. We have outstanding stock options, restricted stock units, options to purchase shares under our ESPP, and convertible senior notes, which are considered in the calculation of diluted net income per share whenever doing so would be dilutive.

The following table sets forth the calculation of basic and diluted net loss per share attributable to common stock during the periods presented:



	Three Months Ended March 31,
	2020			2019
Numerator:
Net loss attributable to common stock—basic and diluted	$	(60,117	)	$	(67,180	)
Denominator:
Weighted average shares—basic and diluted	93,442,706			90,610,416
Net loss per share:
Net loss per share attributable to common stock—basic and diluted	$	(0.64	)	$	(0.74	)

The following outstanding shares of common stock equivalents as of March 31, 2020 and 2019 were excluded from the computation of the diluted net loss per share for the periods presented because their effect would have been anti-dilutive:



	Three Months Ended March 31,
	2020	2019
Stock options outstanding	7,028,719	8,713,162
Restricted stock units outstanding	4,681,875	3,588,275
Employee stock purchase plan	233,416	290,647
Total	11,944,010	12,592,084

We are required to consider the impact of our convertible senior notes on our diluted net income per share based on the treasury stock method as we have the ability, and intent, to settle any conversions of the notes solely in cash. The treasury stock method requires that the dilutive effect of common stock issuable upon conversion of the notes be computed in the periods in which we report net income. For the three months ended March 31, 2020 there was no dilutive impact from the notes.