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Quarterly Financial Data (unaudited)
 12 Months Ended
Dec. 31, 2015
Quarterly Financial Information Disclosure [Abstract]  
Quarterly Financial Data (unaudited)

16. Quarterly Financial Data (unaudited)

The following table presents certain unaudited quarterly financial information. This information has been prepared on the same basis as the audited consolidated financial statements and includes all adjustments (consisting only of normal recurring adjustments) necessary to present fairly the unaudited quarterly results of operations set forth herein.

 

 

 

2015

 

 

2014

 

 

 

Q1

 

 

Q2

 

 

Q3

 

 

Q4

 

 

Q1

 

 

Q2

 

 

Q3

 

 

Q4

 

Collaboration and license revenue

 

$

2,359

 

 

$

2,385

 

 

$

2,912

 

 

$

4,414

 

 

$

2,372

 

 

$

2,415

 

 

$

2,427

 

 

$

2,411

 

Operating expenses

 

$

(48,863

)

 

$

(61,212

)

 

$

(58,476

)

 

$

(70,694

)

 

$

(33,396

)

 

$

(33,920

)

 

$

(38,204

)

 

$

(41,671

)

Net loss

 

$

(46,913

)

 

$

(58,329

)

 

$

(55,158

)

 

$

(66,105

)

 

$

(30,726

)

 

$

(31,350

)

 

$

(35,793

)

 

$

(39,256

)

Net loss per share attributable to

   Portola common stockholders:

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Basic and diluted

 

$

(0.95

)

 

$

(1.12

)

 

$

(1.05

)

 

$

(1.23

)

 

$

(0.75

)

 

$

(0.76

)

 

$

(0.86

)

 

$

(0.82

)