DERIVATIVE LIABILITY WARRANTS | NOTE 5 DERIVATIVE LIABILITY WARRANTS As of March 31, 2016, all 1,228,842 warrants issued to AAOF, XGS II, holders of Series A and Series B Preferred Stock, and the Bridge Financings promissory notes have vested. Shares indexed to derivative liabilities as of March 31, 2016 and December 31, 2015 were as follows: Type of Exercise March December Warrants issued with Secured Convertible Notes Series A PS $ 6.40 833,333 833,333 Warrants issued with equipment financing leases Series A PS $ 6.40 83,333 83,333 Warrants issued with preemptive rights Series A PS $ 6.40 56,054 56,054 Warrants issued with preemptive rights Common $ 16.00 2,635 2,635 Warrants issued with 2015 private placement Common $ 16.00 222,262 222,262 Warrants issued with 2015 Bridge Financings Common $ 8.00 20,625 20,625 Warrants issued with 2016 Bridge Financings Common $ 10.00 10,600 Total shares indexed to derivative liabilities 1,228,842 1,218,242 The following table summarizes the fair value of the derivative liabilities as of March 31, 2016 and December 31, 2015: March 31, 2016 December 31,2015 Warrants issued with Secured Convertible Notes $ 6,668,410 $ 6,743,997 Warrants issued with equipment financing leases 666,843 674,397 Warrants issued with preemptive rights 452,181 457,265 Warrants issued with 2015 private placement 306,546 306,828 Warrants issued with Bridge Financings 73,233 52,676 Total derivative liabilities $ 8,167,213 $ 8,235,163 The Company estimated the fair value of their warrant derivative liabilities as of March 31, 2016 and December 31, 2015, using a lattice model and the following assumptions: March 31, 2016 December 31, 2015 Fair value of underlying stock $7.63 - $12.64 $7.63 - $12.64 Equivalent risk free interest rate 0.73%- 0.98% 1.06%- 1.39% Expected term (in years) 4.76- 7.80 5.01- 8.05 Equivalent stock price volatility 39.18%- 39.75% 38.00%- 38.61% Expected dividend yield The fair value of the warrants is estimated using a binomial lattice model. Equivalent amounts reflect the net results of multiple modeling simulations that the lattice model applies to underlying assumptions. Because the Company is not publically traded, the expected volatility of the Companys stock was developed using historical volatility for a peer group for a period equal to the expected term of the warrants. The fair value of the warrants will be significantly influenced by the fair value of our common stock, stock price volatility and the risk free interest components of the lattice technique. Changes in the fair value of Derivative Liabilities, carried at fair value, are reported as Change in fair value of derivative liability - warrants in the Statement of Operations, and were as follows: Three months ended March 31, 2016 2015 Warrants issued with Secured Convertible Notes $ 75,587 $ 82,500 Warrants issued with equipment financing leases 7,554 8,250 Warrants issued with preemptive rights 5,084 5,549 Warrants issued with 2015 private placement 282 Warrants issued with Bridge Financings 1,258 Total Derivative Gain $ 89,765 $ 96,299 |