Net Loss per Share Attributable to Portola Common Stockholders (Tables)

6 Months Ended

Jun. 30, 2019

Earnings Per Share [Abstract]

Outstanding Shares of Common Stock Equivalents Excluded from Computation of Diluted Net Loss per Share

The following outstanding shares of common stock equivalents were excluded from the computation of diluted net loss per share attributable to Portola Common Stockholders for the periods presented because including them would have been antidilutive:

	Six Months Ended June 30,
	2019		2018
Stock options to purchase common stock		7,913,656		7,391,411
Performance stock options		596,404		155,669
Common stock warrants		1,500		1,500
Restricted stock units		1,227,101		749,412
Performance stock units		13,125		330,416
Employee stock purchase plan		67,958		47,743