Quarterly report pursuant to Section 13 or 15(d)

Stock-based Compensation (Tables)

v3.21.2
Stock-based Compensation (Tables)
6 Months Ended
Jun. 30, 2021
Stock-based Compensation  
Weighted Average Assumptions

Three Months Ended June 30, 

 

Six Months Ended June 30, 

 

    

2021

    

2020

 

    

2021

    

2020

 

Dividend yield

 

0

%  

0

%  

 

0

%  

0

%

Expected volatility

 

76

%  

100

%  

 

94

%  

100

%

Risk-free interest rate

 

1.06

%  

0.40

%  

 

0.77

%  

0.77

%

Expected term

 

6.00 years

5.93 years

 

5.68 years

5.66 years

Stock Option Activity

Weighted

    

Weighted

    

Average

Average

Aggregate

Exercise

Contractual 

Intrinsic

Number of

Price

Term

Value

shares

Per Share

(in years)

(in thousands)

Outstanding at January 1, 2021

1,827,906

$

20.66

 

6.31

 

$

51,401

Granted

 

176,429

 

37.62

 

  

 

  

Exercised

 

(73,575)

 

13.35

 

  

 

  

Forfeited, expired or cancelled

(57,115)

 

71.26

 

  

 

  

Outstanding at June 30, 2021

1,873,645

$

21.00

 

6.19

$

33,125

Exercisable at June 30, 2021

1,535,686

$

19.37

 

5.58

$

30,459

Stock-based Compensation Expense

The following table shows total stock-based compensation expense for stock options and ESPP in the condensed consolidated statements of operations and comprehensive loss (in thousands):

Three Months Ended June 30, 

Six Months Ended June 30, 

    

2021

    

2020

    

2021

    

2020

Research and development

$

$

$

$

General and administrative

 

768

 

773

 

3,666

 

2,561

Total stock-based compensation expense

$

768

$

773

$

3,666

$

2,561