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

12 Months Ended

Dec. 31, 2015

Earnings Per Share [Abstract]

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

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:

	Year Ended December 31,
	2015		2014		2013
Stock options to purchase Common Stock		4,731,483		4,249,168		3,708,773
Common stock warrants		1,500		6,240		82,575
Restricted stock units		167,750	–		–
Performance stock units		205,261	–		–