Quarterly report pursuant to Section 13 or 15(d)

Stock Based Compensation (Tables)

v3.22.2
Stock Based Compensation (Tables)
6 Months Ended
Jun. 30, 2022
Stock Based Compensation  
Weighted Average Assumptions

​

​

​

​

​

​

​

​

​

​

​

​

​

​

Three Months Ended June 30, 

 

​

Six Months Ended June 30, 

 

​

    

2022

    

2021

 

    

2022

    

2021

 

Dividend yield

 

0

%  

0

%

 

0

%  

0

%

Expected volatility

 

69

%  

76

%

 

70

%  

94

%

Risk-free interest rate

 

2.90

%  

1.06

%

 

2.17

%  

0.77

%

Expected term

 

5.61 years

​

6.00 years

​

 

5.65 years

​

5.68 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, 2022

​

​

1,911,177

​

$

20.64

 

​

6.33

​

$

15,103

Granted

 

​

222,972

​

 

19.83

 

​

  

 

​

  

Exercised

 

​

(101,811)

​

 

8.07

 

​

  

 

​

  

Forfeited, expired or cancelled

​

​

(7,447)

​

 

31.04

 

​

  

 

​

  

Outstanding at June 30, 2022

​

​

2,024,891

​

$

21.15

 

​

6.31

​

$

16,048

Exercisable at June 30, 2022

​

​

1,571,458

​

$

19.94

 

​

5.47

​

$

15,414

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, 

​

    

2022

    

2021

    

2022

    

2021

General and administrative

​

 

837

​

 

768

​

 

1,815

​

 

3,666

Total stock-based compensation expense

​

$

837

​

$

768

​

$

1,815

​

$

3,666