| | Number | | Weighted Average Exercise Price Per Share | | Remaining Contract Term (# years) | | |||
Shares purchasable under outstanding warrants at June 30, 2012 | | | 2,400,328 | | $ | 0.41 | | | | |
Stock purchase warrants issued | | | 507,019 | | | 0.41 | | | | |
Stock purchase warrants exercised | | | | | | | | | | |
Shares purchasable under outstanding warrants at June 30, 2013 | | | 2,907,347 | | $ | 0.41 | | | 3.96 - 4.34 | |