Net loss per share

Basic and diluted net loss per share attributable to common stockholders is presented in conformity with the two-class method required for participating securities. Upon the closing of the IPO, all outstanding shares of the Company's redeemable convertible preferred stock automatically converted into 32,482,590 shares of common stock on a one-for-one basis. Basic net loss attributable to common stockholders per share is calculated by dividing net loss attributable to common stockholders by the weighted-average number of shares of common stock outstanding less shares subject to repurchase.

The following table sets forth the computation of the Company’s basic and diluted net loss per share:



	2018			2017			2016
(In thousands, except share and per share data)
Numerator:
Net loss attributable to common stockholders—basic and diluted	$	(15,604	)	$	(14,217	)	$	(38,214	)
Denominator:
Weighted-average shares of common stock—basic and diluted	65,706,215			56,314,546			53,873,051
Net loss per share attributable to common stockholders:
Net loss per share attributable to common stockholders—basic and diluted	$	(0.24	)	$	(0.25	)	$	(0.71	)

The following potentially dilutive shares as of the end of each period presented were excluded from the computation of diluted net loss per share for the periods presented because including them would have been antidilutive:



	2018	2017	2016
Stock options to purchase common stock	48,504,182	45,817,252	45,940,594
Convertible preferred stock	—	32,482,590	32,482,590
Shares subject to repurchase	—	53,892	53,892
Total	48,504,182	78,353,734	78,477,076