Quarterly report pursuant to Section 13 or 15(d)

Note 11 - Stock-based Compensation (Tables)

v3.22.1
Note 11 - Stock-based Compensation (Tables)
3 Months Ended
Mar. 31, 2022
Notes Tables  
Share-Based Payment Arrangement, Option, Activity [Table Text Block]

Option numbers are in (000s)

                       
           

Three months ended

March 31, 2022

         
   

Options

   

Weighted average

exercise price

   

Weighted average
remaining

contractual

life (years)

 
                         

Outstanding, beginning of period

    15,112     $ 4.61          

Granted

    3,870       1.34          

Exercised

    (14 )     1.08          

Forfeited

    (349 )     4.77          

Outstanding, end of the period

    18,619       3.97       7.0  

Exercisable, end of the period

    10,736       4.68       5.5  

Vested and expected to vest, end of period

    17,344       4.03       6.9  

Option numbers are in (000s)

                       
           

Three months ended

March 31, 2021

         
    Options    

Weighted average

exercise price

    Weighted average
remaining
contractual
life (years)
 
                         

Outstanding, beginning of period

    11,942     $ 4.97          

Granted

    2,962       4.47          

Exercised

    (39 )     1.97          

Forfeited

    (703 )     5.67          

Outstanding, end of the period

    14,162       4.85       7.1  

Exercisable, end of the period

    7,887       4.59       5.95  

Vested and expected to vest, end of period

    13,220       4.83       6.99  
Schedule of Share-Based Payment Award, Stock Options, Valuation Assumptions [Table Text Block]
   

Three months ended
March 31, 2022

   

Three months ended
March 31, 2021

 
                 

Risk-free interest rate

    1.7 %     0.4 %

Expected dividend yield

    -       -  

Expected volatility

    83.3 %     80.7 %

Expected life of options

 

5 years

   

5 years

 

Grant date fair value

  $ 0.89     $ 2.85  
Schedule of Share-based Payment Award, Options, Grants in Period [Table Text Block]

Option numbers are in (000s)

 

Three months ended
March 31, 2022

   

Three months ended
March 31, 2021

 
   

Number of options

   

Number of options

 

3 year vesting (50%-25%-25%)

    425       430  

4 year vesting (50%-16 2/3%-16 2/3%-16 2/3%)

    3,445       2,532  

Total stock options granted in the period

    3,870       2,962  
Share-Based Payment Arrangement, Expensed and Capitalized, Amount [Table Text Block]
   

Three months ended
March 31, 2022

   

Three months ended
March 31, 2021

 
                 

Research and development

  $ 946     $ 1,378  

General and administrative

    1,568       5,265  

Total

  $ 2,514     $ 6,643