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

9 Months Ended

Sep. 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:

	Nine Months Ended September 30,
	2019	2018
Stock options to purchase common stock	7,652,393	7,200,427
Performance stock options	578,467	147,335
Common stock warrants	1,500	1,500
Restricted stock units	1,253,581	809,014
Performance stock units	13,125	160,378
Employee stock purchase plan	18,754	19,062