Annual report pursuant to Section 13 and 15(d)

Warrants (Tables)

v3.22.1
Warrants (Tables)
12 Months Ended
Dec. 31, 2021
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 December 31, 2019

 

2,463,063

$

7.96

 

868,443

$

0.001

Issued

 

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

Exercised

(363,448)

$

8.90

(66,373)

$

0.001

Outstanding at December 31, 2021

786,420

$

5.19

253,828

$

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

    

0.22

%

Expected dividend yield

 

%

Expected life

 

5 years

Expected volatility

 

90

%