5. STOCK OPTIONS AND WARRANTS (Tables)
|
3 Months Ended |
Jul. 31, 2018 |
Employee stock option activity |
|
|
Options |
|
|
Weighted
Average
Exercise Price
|
|
|
Weighted
Average
Grant Date
Fair Value
per Share
|
|
|
|
|
|
|
|
|
|
|
|
Outstanding, April 30, 2018 |
|
|
95,250,000 |
|
|
$ |
0.11 |
|
|
$ |
0.11 |
|
Issued |
|
|
– |
|
|
|
– |
|
|
|
– |
|
Forfeited |
|
|
– |
|
|
|
– |
|
|
|
– |
|
Exercised |
|
|
– |
|
|
|
– |
|
|
|
– |
|
Outstanding, July 31, 2018 |
|
|
95,250,000 |
|
|
$ |
0.11 |
|
|
$ |
0.11 |
|
Exercisable, July 31, 2018 |
|
|
91,000,000 |
|
|
$ |
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, 2018 |
|
|
|
7,200,000 |
|
|
$ |
0.06 |
|
|
Granted |
|
|
|
– |
|
|
|
– |
|
|
Vested |
|
|
|
(2,950,000 |
) |
|
|
0.06 |
|
|
Forfeited |
|
|
|
– |
|
|
|
– |
|
|
Non-vested, July 31, 2018 |
|
|
|
4,250,000 |
|
|
$ |
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 |
|
|
|
0.83 |
|
|
$ |
0.19 |
|
|
|
25,000,000 |
|
|
$ |
0.19 |
|
$ |
0.11 |
|
|
|
27,200,000 |
|
|
|
1.01 |
|
|
$ |
0.11 |
|
|
|
27,200,000 |
|
|
$ |
0.11 |
|
$ |
0.18 |
|
|
|
250,000 |
|
|
|
1.11 |
|
|
$ |
0.18 |
|
|
|
250,000 |
|
|
$ |
0.18 |
|
$ |
0.06 |
|
|
|
15,600,000 |
|
|
|
1.75 |
|
|
$ |
0.06 |
|
|
|
15,600,000 |
|
|
$ |
0.06 |
|
$ |
0.10 |
|
|
|
10,450,000 |
|
|
|
2.63 |
|
|
$ |
0.10 |
|
|
|
10,450,000 |
|
|
$ |
0.10 |
|
$ |
0.07 |
|
|
|
600,000 |
|
|
|
3.25 |
|
|
$ |
0.07 |
|
|
|
600,000 |
|
|
$ |
0.07 |
|
$ |
0.06 |
|
|
|
1,250,000 |
|
|
|
2.21 |
|
|
$ |
0.06 |
|
|
|
1,250,000 |
|
|
$ |
0.06 |
|
$ |
0.06 |
|
|
|
1,200,000 |
|
|
|
4.42 |
|
|
$ |
0.06 |
|
|
|
1,200,000 |
|
|
$ |
0.06 |
|
$ |
0.07 |
|
|
|
1,200,000 |
|
|
|
4.25 |
|
|
$ |
0.07 |
|
|
|
1,200,000 |
|
|
$ |
0.07 |
|
$ |
0.07 |
|
|
|
1,800,000 |
|
|
|
4.44 |
|
|
$ |
0.07 |
|
|
|
1,300,000 |
|
|
$ |
0.07 |
|
$ |
0.09 |
|
|
|
1,200,000 |
|
|
|
2.23 |
|
|
$ |
0.09 |
|
|
|
1,200,000 |
|
|
$ |
0.09 |
|
$ |
0.06 |
|
|
|
500,000 |
|
|
|
2.35 |
|
|
$ |
0.06 |
|
|
|
500,000 |
|
|
$ |
0.06 |
|
$ |
0.06 |
|
|
|
9,000,000 |
|
|
|
2.95 |
|
|
$ |
0.06 |
|
|
|
5,250,000 |
|
|
$ |
0.06 |
|
|
Total |
|
|
|
95,250,000 |
|
|
|
1.68 |
|
|
$ |
0.11 |
|
|
|
91,000,000 |
|
|
$ |
0.12 |
|
|
Warrant activity |
|
|
|
Warrants |
|
|
Weighted
Average
Exercise Price
|
|
|
Outstanding, April 30, 2018 |
|
|
|
33,993,104 |
|
|
$ |
0.10 |
|
|
Issued |
|
|
|
3,311,966 |
|
|
|
0.02 |
|
|
Expired |
|
|
|
– |
|
|
|
– |
|
|
Outstanding, July 31, 2018 |
|
|
|
37,305,070 |
|
|
|
0.09 |
|
|
Exercisable, July 31, 2018 |
|
|
|
37,305,070 |
|
|
$ |
0.09 |
|
|
Schedule of warrants outstanding and exercisable |
Exercise Prices |
|
Number of
Warrant Shares
Exercisable at July 31, 2018
|
|
|
Weighted
Average
Remaining
Contractual
Life
|
|
|
Weighted
Average
Exercise Price
|
|
$0.018, $0.025, $0.026, $0.03, $0.0575, $0.065, $0.11 and $0.12 |
|
|
37,305,070 |
|
|
|
2.67 |
|
|
$ |
0.09 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Five Year Term – $0.12 |
|
|
17,854,308 |
|
|
|
2.38 |
|
|
|
|
|
Five Year Term – $0.11 |
|
|
10,000,000 |
|
|
|
1.65 |
|
|
|
|
|
Five Year Term – $0.065 |
|
|
769,231 |
|
|
|
3.39 |
|
|
|
|
|
Five Year Term – $0.0575 |
|
|
869,565 |
|
|
|
3.68 |
|
|
|
|
|
Five Year Term – $0.03 |
|
|
2,500,000 |
|
|
|
4.33 |
|
|
|
|
|
Five Year Term – $0.026 |
|
|
1,923,077 |
|
|
|
4.91 |
|
|
|
|
|
Five Year Term – $0.025 |
|
|
2,000,000 |
|
|
|
3.99 |
|
|
|
|
|
Five Year Term – $0.018 |
|
|
1,388,889 |
|
|
|
4.83 |
|
|
|
|
|
|
|
|
37,305,070 |
|
|
|
|
|
|
|
|
|
|
Employee Options [Member] |
|
Assumptions |
|
|
Three Months Ended July 31, |
|
|
|
2018 |
|
|
2017 |
|
Risk-free interest rate |
|
|
– |
|
|
|
2.0% |
|
Expected volatility |
|
|
– |
|
|
|
107% |
|
Expected lives (years) |
|
|
– |
|
|
|
2.5 |
|
Expected dividend yield |
|
|
– |
|
|
|
0.00% |
|
|
Non-Employee Options [Member] |
|
Assumptions |
|
|
Three Months Ended July 31, |
|
|
|
2018 |
|
|
2017 |
|
Risk-free interest rate |
|
|
2.8% |
|
|
|
1.8% |
|
Expected volatility |
|
|
98% |
|
|
|
108% |
|
Expected lives (years) |
|
|
4.0 |
|
|
|
5.0 |
|
Expected dividend yield |
|
|
0.00% |
|
|
|
0.00% |
|
|