| Stock Option and Warrant Activity |
The following table represents stock option and warrant activity
for the periods ended May 31, 2016 and
2015:
|
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| |
|
Number of
Shares |
|
|
Weighted
Average
Exercise Price |
|
|
Weighted
Average
Remaining
Contractual Life
in Years |
|
|
Aggregate
Intrinsic Value |
|
|
Options and warrants outstanding - May 31, 2014
|
|
|
30,806,361 |
|
|
$ |
1.13 |
|
|
|
3.29 |
|
|
$ |
177,042 |
|
|
Granted
|
|
|
9,262,038 |
|
|
|
0.93 |
|
|
|
— |
|
|
|
— |
|
|
Exercised
|
|
|
(2,038,974 |
) |
|
|
0.55 |
|
|
|
— |
|
|
|
— |
|
|
Forfeited/expired/cancelled
|
|
|
(7,020,510 |
) |
|
|
1.76 |
|
|
|
— |
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|
|
— |
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Options and warrants outstanding - May 31, 2015
|
|
|
31,008,915 |
|
|
|
0.88 |
|
|
|
2.94 |
|
|
|
5,538,335 |
|
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|
|
|
|
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|
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|
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|
|
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|
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Granted
|
|
|
33,838,536 |
|
|
|
0.80 |
|
|
|
— |
|
|
|
— |
|
|
Exercised
|
|
|
(1,050,301 |
) |
|
|
0.70 |
|
|
|
— |
|
|
|
— |
|
|
Forfeited/expired/cancelled
|
|
|
(490,000 |
) |
|
|
2.01 |
|
|
|
— |
|
|
|
— |
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|
Options and warrants outstanding - May 31, 2016
|
|
|
63,307,150 |
|
|
|
0.83 |
|
|
|
3.20 |
|
|
|
9,863,492 |
|
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Outstanding exercisable - May 31, 2016
|
|
|
60,648,362 |
|
|
|
0.83 |
|
|
|
3.42 |
|
|
|
9,795,753 |
|
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