Quarterly report pursuant to Section 13 or 15(d)

Stock Based Option Compensation and Restricted Stock Compensation

v3.8.0.1
Stock Based Option Compensation and Restricted Stock Compensation
3 Months Ended
Mar. 31, 2018
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]  
Stock Based Option Compensation and Restricted Stock Compensation
(5)
Stock Based Option Compensation and Restricted Stock Compensation
 
For the three months ended March 31, 2018, we recognized stock-based compensation expense of $1,900,000 for granted options. For the three months ended March 31, 2017, we recognized stock-based compensation expense of $1,492,000.
 
The following table summarizes stock-based compensation for the three months ended March 31, 2018 and 2017:
 
 
 
Three months ended
 
 
 
March 31,
 
 
 
2018
 
2017
 
Research and development
 
$
1,056,000
 
$
356,000
 
General and administrative
 
 
844,000
 
 
1,136,000
 
Stock-based compensation expense included in operating expense
 
$
1,900,000
 
$
1,492,000
 
 
For the three months ended March 31, 2018, we granted 645,000 stock options and for the three months ended March 31, 2017, we granted no stock options.
 
For the three months ended March 31, 2018, the fair value of options was estimated at the date of grant using the Black-Scholes option pricing model with the following weighted average assumptions: dividend yield of 0%; volatility of 1.09%; risk-free interest rate of 2.37%; and expected lives of 5.0 years. The weighted average fair value of options granted was $10.83 per share. The weighted average grant date fair value is $10.83 and the weighted average exercise price is $13.72.
 
For the three months ended March 31, 2018, we recognized restricted common stock compensation expense of $172,000 for granted restricted common stock. For the three months ended March 31, 2017, we recognized restricted stock compensation expense of $362,000 for granted restricted common stock compensation expense.
 
The following table summarizes restricted common stock compensation expense for the three months ended March 31, 2018 and 2017:
 
 
 
Three months ended
 
 
 
March 31,
 
 
 
2018
 
2017
 
Research and development
 
$
-
 
$
-
 
General and administrative
 
 
172,000
 
 
362,000
 
Stock-based compensation expense included in operating expense
 
$
172,000
 
$
362,000
 
 
For the three months ended March 31, 2018 and 2017, no stock was granted.