Share Based Compensation | 8. SHARE BASED COMPENSATION The following table summarizes share-based compensation expense included in the Statement of Operations: Three Months Ended January 31, 2018 2017 Research and development $ 1,272,997 $ 1,222,483 General and administrative 1,536,121 3,887,942 Total $ 2,809,118 $ 5,110,425 Restricted Stock Units (RSUs) A summary of the Company’s RSU activity and related information for the three months ended January 31, 2018 is as follows: Number of RSUs Weighted-Average Grant Date Fair Value Balance at October 31, 2017: 1,363,119 $ 8.54 Granted 84,000 3.19 Vested (186,970 ) 8.29 Cancelled (2,623 ) 7.94 Balance at January 31, 2018 1,257,526 $ 8.22 As of January 31, 2018, there was approximately $7,988,000 of unrecognized compensation cost related to non-vested RSUs, which is expected to be recognized over a remaining weighted average vesting period of approximately 1.80 years. As of January 31, 2018, the aggregate intrinsic value of non-vested RSUs was approximately $3,722,000. Employee Stock Awards Common Stock issued to executives and employees related to vested incentive retention awards, employment inducements, management purchases and employee excellence awards totaled 197,167 shares (195,046 shares on a net basis after employee taxes) and 93,976 shares (92,731 shares on a net basis after employee taxes) during the three months ended January 31, 2018 and 2017 respectively. Total stock compensation expense associated with these awards for the three months ended January 31, 2018 and 2017 was $1,354,185 and $1,356,639, respectively. Director Stock Awards During the three months ended January 31, 2018 and 2017, total stock compensation expense to the Directors for amortization of unvested awards was $101,628 and $101,628, respectively. Stock Options A summary of changes in the stock option plan for the three months ended January 31, 2018 is as follows: Number of Weighted-Average Options Exercise Price Outstanding at October 31, 2017: 3,893,558 $ 12.51 Granted 761,685 3.11 Canceled or Expired (212,685 ) 12.11 Outstanding at January 31, 2018 4,442,558 10.91 Vested and Exercisable at January 31, 2018 3,150,667 $ 12.80 Total compensation cost related to the Company’s outstanding stock options, recognized in the statement of operations for the three months ended January 31, 2018 and 2017 was $1,398,304 and $3,183,458, respectively. During the three months ended January 31, 2018, 761,685 options were granted with a total grant date fair value of $1,856,699. During the three months ended January 31, 2017, 556,952 options were granted with a total grant date fair value of $3,542,215. As of January 31, 2018, there was approximately $4,877,000 of unrecognized compensation cost related to non-vested stock option awards, which is expected to be recognized over a remaining weighted average vesting period of approximately 1.53 years. As of January 31, 2018, the aggregate intrinsic value of vested and exercisable options was $0. In determining the fair value of the stock options granted during the three months ended January 31, 2018 and 2017, the Company used the following inputs in its BSM: Three Months Ended January 31, 2018 2017 Expected Term 5.50-6.50 years 5.50-6.50 years Expected Volatility 95.11-100.34 % 107.07-110.93 % Expected Dividends 0 % 0 % Risk Free Interest Rate 2.00-2.66 % 1.26-1.58 % Shares Issued to Consultants During the three months ended January 31, 2017, 32,500 shares of Common Stock valued at $313,600 were issued to consultants for services, of which $75,000 represented shares issued for amounts previously accrued. The Company recorded a liability on its balance sheet for $230,100 for shares earned pursuant to consulting agreements but not delivered. The common stock share values were based on the dates the shares vested. |