Thanks for that info Maverick! For those that are interested in calculating the fair value of the warrants here is a useful link I use when determining the risk free rate when using the black scholes model.
The way I would use this site is as follows, say I wanted to value the warrants using the black scholes model as of 3/31/15, to find the appropriate risk free rate I would go to the link provided above then find the 5yr Daily Treasury Yield Curve as of 3/31/15 which is 1.37. I would use the 5yr curve rate because their is 5yrs left until the warrants expire. (AKA 5yr lookback period)