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Net loss per share
12 Months Ended
Dec. 31, 2020
Earnings Per Share [Abstract]  
Net loss per share

10. Net loss per share

Basic and diluted net loss per share is computed by dividing net loss available to common stockholders by the weighted-average number of common shares outstanding.  Potentially dilutive securities were excluded from the diluted calculation because their effect would be anti-dilutive.

The following table sets forth the computation of basic and diluted net loss per share for common stockholders:

Year ended December 31, 

2020

    

2019

    

2018

Numerator

Net loss

$

(438,160)

  

$

(251,576)

  

$

(128,081)

  

Denominator

  

Denominator for basic and diluted net loss per share

 

66,027,908

  

 

58,863,185

  

 

46,576,313

  

Net loss per share:

  

Basic and diluted

$

(6.64)

*

$

(4.27)

*

$

(2.75)

*

*

For the years ended December 31, 2020, 2019, and 2018, the Company experienced a net loss and therefore did not report any dilutive share impact.

The following table shows historical dilutive common share equivalents outstanding, which are not included in the above historical calculation, as the effect of their inclusion is anti-dilutive during each period.

As of December 31, 

    

2020

    

2019

    

2018

Stock Options

9,663,677

11,043,939

8,534,358

Unvested restricted stock awards and units

 

982,058

 

642,419

 

571,479

Total

 

10,645,735

 

11,686,358

 

9,105,837