Basic and Diluted Net Loss Per Share (Tables)

12 Months Ended

Dec. 31, 2017

Schedule of Common Equivalent Shares were Excluded From Diluted Net Loss Per Share Calculation because their Inclusion would have been Anti-Dilutive

The following common equivalent shares were excluded from the diluted net loss per share calculation because their inclusion would have been anti-dilutive:

	Year Ended December 31,
	2017		2016		2015
Stock options		2,440,290		1,884,425		1,821,722
Shares to be issued under ESPP		44,320		83,790		—
Restricted stock units		784,000		—		—
Convertible senior notes		3,411,199		—		—
Series A-1 preferred stock warrants		—		—		130,384
Convertible preferred stock		—		—		8,354,963
Total		6,679,809		1,968,215		10,307,069

Schedule of Common Stock Reserved

The amount of such shares of the Company’s common stock reserved for these purposes at December 31, 2017 is as follows:

	Number of Shares
Stock options issued and outstanding		2,440,290
Additional shares available for grant under equity plans		1,554,177
Total		3,994,467