Annual report pursuant to Section 13 and 15(d)

5. STOCK OPTIONS AND WARRANTS (Tables)

v3.10.0.1
5. STOCK OPTIONS AND WARRANTS (Tables)
12 Months Ended
Apr. 30, 2018
Employee stock option activity
    Options     Weighted
Average
Exercise Price
    Weighted
Average
Grant Date
Fair Value
per Share
 
                   
Outstanding, April 30, 2016     68,050,000     $ 0.13     $ 0.09  
Issued     23,550,000       0.10       0.08  
Forfeited     (12,500,000 )     0.07       0.04  
Exercised                  
Outstanding, April 30, 2017     79,100,000       0.13       0.09  
Issued     16,150,000       0.06       0.06  
Forfeited     -       -       -  
Exercised                  
Outstanding, April 30, 2018     95,250,000       0.11       0.11  
Exercisable, April 30, 2018     88,050,000     $ 0.12        
Vested and expected to vest     95,250,000     $ 0.11     $  
Unvested employee stock option activity
    Options     Weighted
Average
Grant Date
Fair Value
per Share
 
             
Non-vested, April 30, 2016     10,400,000      $  
Granted     23,550,000       0.08  
Vested     (14,650,000 )      
Forfeited     (12,500,000 )      
Non-vested, April 30, 2017     6,800,000        
Granted     16,150,000       0.06  
Vested     (15,750,000 )      
Forfeited     -        
Non-vested, April 30, 2018     7,200,000     $ 0.06  
Range of outstanding stock options
Exercise Price     Number of Options Outstanding     Weighted Average Remaining Contractual Life (years) of Outstanding Options     Weighted Average Exercisable Price     Number of Options Exercisable     Weighted Average Exercise Price of Exercisable Options  
$ 0.19       25,000,000       0.71     $ 0.19       25,000,000     $ 0.19  
$ 0.11       27,200,000       0.88     $ 0.11       27,200,000     $ 0.11  
$ 0.18       250,000       0.99     $ 0.18       250,000     $ 0.18  
$ 0.06       15,600,000       1.60     $ 0.06       15,600,000     $ 0.06  
$ 0.10       10,450,000       2.48     $ 0.10       10,450,000     $ 0.10  
$ 0.07       600,000       3.00     $ 0.07       600,000     $ 0.07  
$ 0.06       1,250,000       2.09     $ 0.06       1,250,000     $ 0.06  
$ 0.06       1,200,000       4.01     $ 0.06       1,000,000     $ 0.06  
$ 0.07       1,200,000       4.18     $ 0.07       1,200,000     $ 0.07  
$ 0.07       1,800,000       4.20     $ 0.07       1,000,000     $ 0.07  
$ 0.09       1,200,000       2.11     $ 0.09       1,000,000     $ 0.09  
$ 0.06       500,000       2.22     $ 0.06       500,000     $ 0.06  
$ 0.06       9,000,000       2.81     $ 0.06       3,000,000     $ 0.06  
Total       95,250,000       1.54     $ 0.11       88,050,000     $ 0.12  
Warrant activity
    Warrants     Weighted
Average
Exercise Price
 
Outstanding, April 30, 2016     84,969,908     $ 0.16  
Issued     1,638,796        
Exercised     (18,755,200 )      
Outstanding, April 30, 2017     67,853,504       0.13  
Issued     4,500,000        
Expired     (38,360,400 )      
Outstanding, April 30, 2018     33,993,104        
Exercisable, April 30, 2018     33,993,104     $ 0.10  
Schedule of warrants outstanding and exercisable
Range of Exercise Prices   Number of
Warrant Shares
Exercisable at
April 30, 2018 
    Weighted
Average
Remaining
Contractual
Life
    Weighted
Average
Exercise Price
 
$0.025, $0.03, $0.0575 $0.065, $0.11 and $0.12     33,993,104       2.60     $ 0.11  
                         
Five Year Term    –    $0.12     17,854,308       2.63          
Five Year Term    –    $0.11     10,000,000       1.90          
Five Year Term    –    $0.065     769,231       3.64          
Five Year Term     –   $0.0575     869,565       3.93          
Five Year Term     –   $0.03     2,500,000       4.58          
Five Year Term     –   $0.025     2,000,000       4.24          
      33,993,104                  
Employee Options [Member]  
Assumptions
    Years Ended April 30,  
    2018     2017  
Risk-free interest rate     2.0%       2.1%  
Expected volatility     108%       108%  
Expected lives (years)     3.0       2.9  
Expected dividend yield     0.00%       0.00%  
Non-Employee Options [Member]  
Assumptions
    Years Ended April 30,  
    2018     2017  
Risk-free interest rate     2.5%       1.8%  
Expected volatility     102%       110%  
Expected lives (years)     5.0       5.0  
Expected dividend yield     0.00%       0.00%