Annual report pursuant to Section 13 and 15(d)

Stockholders' Equity (Tables)

v3.21.1
Stockholders' Equity (Tables)
12 Months Ended
Dec. 31, 2020
Stockholders’ Equity  
Schedule of common stock warrants by exercise price range

 

 

 

 

 

 

 

 

Issuance Date

    

Number of Shares

    

Exercise Price

    

Expiration Date

3/10/2011

 

248

 

$

33.60

 

3/10/2021

3/23/2016

 

42,308

 

$

70.00

 

3/23/2021

5/7/2018

 

403,025

 

$

11.09

 

5/8/2023

11/26/2018

 

313,358

 

$

11.55

 

11/26/2023

 

Schedule of common stock warrants outstanding

 

 

 

 

    

Common Stock 

 

 

Warrants

Outstanding, December 31, 2019

 

1,290,103

Issued

 

1,428,571

Exercised

 

(1,489,497)

Exchanged

 

(470,238)

Outstanding, December 31, 2020

 

758,939

 

Schedule of components of stock-based compensation included in net loss

 

 

 

 

 

 

 

 

 

For the years ended 

 

 

December 31, 

 

    

2020

    

2019

Employee stock options

 

$

4,966,596

 

$

1,349,089

Non-employee stock options

 

 

158,963

 

 

351,812

Employee stock awards

 

 

1,072,506

 

 

1,243,526

Non-employee stock awards

 

 

179,792

 

 

325,521

 

 

$

6,377,857

 

$

3,269,948

 

Schedule of stock option valuation assumptions

 

 

 

 

 

 

 

 

    

2020

 

 

2019

 

Dividend yield

 

 —

%  

 

 —

%

Expected volatility

 

83.13-101.68

%  

 

89.59-91.03

%

Risk-free interest rate

 

0.26-1.69

%  

 

1.63-2.52

%

Expected lives (years)

 

5.0-6.3

years

 

5.4-6.3

years

 

Schedule of stock option activity

 

 

 

 

 

 

 

 

 

 

 

 

 

    

 

    

Weighted

 

 

 

Weighted

 

 

 

 

Average

 

Aggregate

 

Average

 

 

 

 

Exercise

 

Intrinsic

 

Remaining

 

 

Shares

 

Price

 

Value

 

Contractual Life

Stock options outstanding at December 31, 2018

 

66,422

 

$

81.15

 

$

 —

 

 

 

Granted

 

417,120

 

 

7.21

 

 

 

 

 

 

Exercised

 

(285)

 

 

7.42

 

$

 —

 

 

 

Cancelled and expired

 

(45,654)

 

 

12.33

 

 

 

 

 

 

Stock options outstanding at December 31, 2019

 

437,603

 

$

17.90

 

$

44,196

 

 

 

Granted

 

1,167,749

 

 

7.90

 

 

 

 

 

 

Exercised

 

(7,140)

 

 

3.99

 

$

9,813

 

 

 

Forfeited/Expired

 

(118,073)

 

 

5.80

 

 

 

 

 

 

Stock options outstanding at December 31, 2020

 

1,480,139

 

$

11.05

 

$

403,744

 

8.6

Years

Stock options exercisable at December 31, 2020

 

871,721

 

$

14.74

 

$

120,993

 

8.1

Years

 

Schedule of restricted stock activity

 

 

 

 

 

 

 

 

 

 

Weighted

 

 

 

 

Average

 

 

Shares

 

Fair Value

Restricted stock at December 31, 2018

 

 —

 

$

 —

Granted

 

354,165

 

 

5.97

Vested

 

(168,272)

 

 

5.90

Cancelled

 

(6,388)

 

 

7.42

Restricted stock at December 31, 2019

 

179,505

 

$

5.99

Granted

 

339,999

 

 

3.22

Vested

 

(275,115)

 

 

4.27

Cancelled

 

(4,461)

 

 

7.42

Restricted stock at December 31, 2020

 

239,928

 

$

4.02

 

Schedule of RSU activity

 

 

 

 

 

 

 

 

 

 

Weighted

 

 

 

 

Average

 

 

Shares

 

Fair Value

RSUs at December 31, 2018

 

8,073

 

$

33.78

Vested

 

(3,104)

 

 

37.37

Cancelled

 

(678)

 

 

39.44

RSUs at December 31, 2019

 

4,291

 

$

30.29

Vested

 

(2,342)

 

 

33.15

Cancelled

 

(49)

 

 

36.57

RSUs at December 31, 2020

 

1,900

 

$

26.60