Quarterly report pursuant to Section 13 or 15(d)

Stock Award Plans (Tables)

v2.4.0.6
Stock Award Plans (Tables)
9 Months Ended
Sep. 30, 2012
Stock Award Plans  
Schedule of stock-based compensation expense related to all of the entity's stock-based awards

Total stock-based compensation expense related to all of our stock-based awards that we recognized was as follows (in thousands):

 

 

 

Three Months Ended

 

Nine Months Ended

 

 

 

September 30,

 

September 30,

 

 

 

2012

 

2011

 

2012

 

2011

 

Research and development

 

$

1,866

 

$

2,236

 

$

5,213

 

$

7,086

 

General and administrative

 

1,379

 

854

 

4,141

 

3,041

 

Total stock-based compensation expense

 

$

3,245

 

$

3,090

 

$

9,354

 

$

10,127

 

 

Summary of weighted-average assumptions relating to options granted pursuant to equity incentive plans

 

 

 

 

Equity Incentive Plans

 

Equity Incentive Plans

 

 

 

Three Months Ended

 

Nine Months Ended

 

 

 

September 30,

 

September 30,

 

 

 

2012

 

2011

 

2012

 

2011

 

Risk-free interest rate

 

0.7

%

1.2

%

0.9

%

2.1

%

Expected term (in years)

 

5.0

 

5.0

 

5.5

 

5.2

 

Dividend yield

 

0.0

%

0.0

%

0.0

%

0.0

%

Expected volatility

 

83.9

%

83.8

%

81.6

%

84.2

%

 

Summary of weighted-average assumptions used to calculate fair value of purchase rights granted under Employee Stock Purchase Plan

 

 

 

 

Employee Stock Purchase Plan

 

 

 

Nine Months Ended

 

 

 

September 30,

 

 

 

2012

 

2011

 

Risk-free interest rate

 

0.2

%

0.3

%

Expected term (in years)

 

1.2

 

1.0

 

Dividend yield

 

0.0

%

0.0

%

Expected volatility

 

47.3

%

61.4

%