Quarterly report pursuant to Section 13 or 15(d)

Stock Based Compensation (Tables)

v3.22.1
Stock Based Compensation (Tables)
3 Months Ended
Mar. 31, 2022
Stock Based Compensation  
Weighted Average Assumptions

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​

Three Months Ended March 31, 

 

​

    

2022

    

2021

 

Dividend yield

 

0

%  

0

%

Expected volatility

 

70

%  

98

%

Risk-free interest rate

 

1.89

%  

0.71

%

Expected term

 

5.66 years

​

5.61 years

​

Stock Option Activity

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​

​

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Weighted

    

Weighted

​

​

​

​

​

​

Average

​

Average

​

Aggregate

​

​

​

​

Exercise

​

Contractual 

​

Intrinsic

​

​

Number of

​

Price

​

Term

​

Value

​

​

shares

​

Per Share

​

(in years)

​

(in thousands)

Outstanding at January 1, 2022

​

​

1,911,177

​

$

20.64

 

​

6.33

​

$

15,103

Granted

 

​

160,000

​

 

20.60

 

​

  

 

​

  

Exercised

 

​

(90,811)

​

 

6.97

 

​

  

 

​

  

Forfeited, expired or cancelled

​

​

(6,215)

​

 

27.83

 

​

  

 

​

  

Outstanding at March 31, 2022

​

​

1,974,151

​

$

21.25

 

​

6.44

​

$

24,090

Exercisable at March 31, 2022

​

​

1,522,824

​

$

19.70

 

​

5.60

​

$

22,139

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):

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Three Months Ended March 31, 

​

    

2022

    

2021

Research and development

​

$

—

​

$

—

General and administrative

​

 

978

​

 

2,898

Total stock-based compensation expense

​

$

978

​

$

2,898