Annual report pursuant to Section 13 and 15(d)

Warrants (Tables)

v3.21.1
Warrants (Tables)
12 Months Ended
Dec. 31, 2020
Class of Warrant or Right [Line Items]  
Summary of the company's warrant activity and related information

A summary of the Company’s warrant activity and related information is as follows:

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Warrants

 

Pre-Funded Warrants

 

    

 

    

Weighted

    

 

    

Weighted

 

 

 

 

Average

 

 

 

Average

 

 

 

 

Exercise 

 

 

 

Exercise 

 

 

Warrants

 

Price

 

Warrants

 

Price

Outstanding at January 1, 2019

 

713,652

 

$

26.19

 

 

$

Granted

 

1,837,421

 

$

2.35

 

868,443

 

$

0.001

Expired

 

(88,010)

 

$

38.70

 

 

$

Outstanding at December 31, 2019

 

2,463,063

 

$

7.96

 

868,443

 

$

0.001

Granted

 

705,688

 

$

8.90

 

 

$

Exercised

 

(589,941)

 

$

2.39

 

(548,242)

 

$

0.001

Held in abeyance

 

(803,300)

 

$

2.32

 

 

$

Expired

 

(625,642)

 

$

24.44

 

 

$

Outstanding at December 31, 2020

 

1,149,868

 

$

6.36

 

320,201

 

$

0.001

 

Warrants  
Class of Warrant or Right [Line Items]  
Schedule of assumptions used in the black-scholes model

The assumptions used in the Black-Scholes model for these warrants are as follows:

 

 

 

 

 

Average risk-free interest rate

    

1.69

%

Expected dividend yield

 

 —

%

Expected life

 

5 years

 

Expected volatility

 

80

%