Annual report pursuant to Section 13 and 15(d)

4. Stock Incentive Plan (Tables)

v3.21.1
4. Stock Incentive Plan (Tables)
 12 Months Ended
Dec. 31, 2020
Share-based Payment Arrangement [Abstract]  
Stock option activity
    Options Outstanding
    Number of Shares Subject to Options   Weighted-Average Exercise Price
  Balances at January 1, 2019       1,105,896     $ 2.99  
  Exercised       (18,433 )     5.97  
  Balances at December 31, 2019       1,087,463       2.94  
  Granted(1)       174,357       14.13  
  Forfeited(2)       (3,243 )     8.47  
  Balances at December 31, 2020       1,258,577       4.47  

 

(1) 174,357 options vest as follows: options to purchase 145,648 shares of the Company’s common stock vest 6/48ths on the six-month anniversary of grant date and 1/48th per month thereafter; options to purchase 22,584 shares of the Company’s common stock vest quarterly over one year; and options to purchase 6,125 shares of the Company’s common stock vest monthly over one year.

 

(2) Forfeited options resulted from an employee termination.

 
Summary of options outstanding
Exercise Prices   Number of Shares Subject to Options Outstanding   Weighted-Average Remaining Contractual Term in Years   Number of Shares Subject to Options Fully Vested and Exercisable   Weighted-Average Remaining Contractual Term in Years
$0.001-$5.00       557,420      5.72 years     543,940      5.70 years
$5.01-$10.00       538,956      7.50 years     373,373      7.41 years
$10.01-$15.00       147,076      9.07 years     64,403      9.04 years
$15.01-$20.00       15,125      9.05 years     8,188      9.07 years
        1,258,577           989,904      
Restricted stock unit activity
    Restricted Stock Units   Weighted-Average Grant Date Fair Value per Unit
Unvested balance at January 1, 2020       —       $ —    
Granted       45,722       12.93  
Vested       (5,156 )     12.93  
Forfeited       (500 )     12.93  
Unvested Balance at December 31, 2020       40,066       12.93