Annual report pursuant to Section 13 and 15(d)

Stockholders' equity (Tables)

v3.21.2
Stockholders' equity (Tables)
12 Months Ended
Jun. 30, 2021
Equity [Abstract]  
Schedule of warrants or rights
The activity related to warrants during for the fiscal years ended June 30, 2021 and 2020, is summarized as follows:
 
    
Common

Stock

from

Warrants
    
Weighted-

average

Exercise

Price (per

share)
 
Outstanding at July 1, 2019
     38,329      $ 82.50  
Granted
     241,716        10.50  
Exercised
     (27,526      10.50  
Cashless exercise
     (107,095      10.50  
Forfeited
     —          —    
    
 
 
          
Outstanding and exercisable at June 30, 2020
     145,424        29.48  
    
 
 
          
Granted
     559,162        3.09  
Exercised
     (559,162      3.10  
Forfeited
     (38,329      82.50  
    
 
 
          
Outstanding and exercisable at June 30, 2021
     107,095      $ 10.50  
    
 
 
          
Schedule of equity awards
The activity related to equity awards, which comprised of stock options during the fiscal years e
n
ded June 30, 2021 and 2020, respectively, is summarized as follows:
 
    
Stock

Options
    
Weighted-

average

Exercise

Price
    
Weighted-

average

Remaining

Contractual

Term
    
Aggregate

Intrinsic

Value
 
Outstanding at July 1, 2019
     86,462        64.20        3.58 years      $ —    
Forfeited
     (16,308      102.66                    
    
 
 
                            
Outstanding at June 30, 2020
     70,154        60.42        2.89 years        —    
Exercisable at June 30, 2020
     41,829        69.81        2.59 years        —    
Granted
     640,320        3.29                    
Forfeited
     (8,410      153.79                    
    
 
 
                            
Outstanding at June 30, 2021
     702,064        7.16        8.07 years        —    
    
 
 
                            
Exercisable at June 30, 2021
     54,158      $ 47.90        2.09 years      $ —    
    
 
 
    
 
 
    
 
 
    
 
 
 
Schedule of equity-based compensation expense
The Company estimated the fair value of each equity award on the grant date using the Black-Scholes option-pricing model with the following assumptions:
 
    
Fiscal Year Ended
June 30,
 
    
2021
   
2020
 
Expected volatility
    
112.0-127.4
   
102.9-104.1
Expected term
    
3.5 - 6 years
      5 years  
Risk-free interest rate
    
0.44-0.55
   
1.28-1.67
Expected dividend yield
        
    
 
 
   
 
 
 
Schedule of share-basedcompensation expense
The classification of share-based compensation expense for the years ended:
 
(US$’000)
  
June 30,
 
    
2021
    
2020
 
Research and development
   $ 212      $ 16  
General and administrative
     422        221  
    
 
 
    
 
 
 
Total share-based compensation expense
   $ 634      $ 237