Quarterly report pursuant to Section 13 or 15(d)

Stock-based Compensation (Tables)

v3.8.0.1
Stock-based Compensation (Tables)
 3 Months Ended
Mar. 31, 2018
Stock-based Compensation  
Schedule of stock-based compensation expense related to all of the entity's share-based payments

Total stock-based compensation expense related to all of our share-based payments that we recognized for the three months ended March 31, 2018 and 2017 were as follows (in thousands):

 

 

 

 

 

 

 

 

 

 

 

 

Three Months Ended 

 

 

 

 

2018

    

2017

 

 

General and administrative

 

$

940

 

$

595

 

 

Research and development

 

 

600

 

 

360

 

 

Total stock-based compensation expense

 

$

1,540

 

$

955

 

 

 

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

 

 

 

 

 

 

 

 

 

 

Three Months Ended 

 

 

 

 

 

March 31, 

 

 

 

 

    

2018

    

2017

    

    

    

Risk-free interest rate

 
2.7

%  
2.3

%  

 

 

Expected term (in years)

 
6.7

 
6.8

 

 

 

Dividend yield

 
0.0

%  
0.0

%  

 

 

Expected volatility

 
64.6

%  
62.9

%  

 

 

 

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

 

 

 

 

 

 

 

 

 

Three Months Ended 

 

 

 

 

March 31, 

 

 

 

    

2018

    

2017

 

    

Risk-free interest rate

 
0.6

%  
0.5

%

 

Expected term (in years)

 
2.0

 
1.5

 

 

Dividend yield

 
0.0

%  
0.0

%

 

Expected volatility

 
63.8

%  
63.1

%