Quarterly report pursuant to Section 13 or 15(d)

Stock-Based Compensation (Tables)

v3.10.0.1
Stock-Based Compensation (Tables)
9 Months Ended
Sep. 30, 2018
Stock-based Compensation Tables  
Schedule of Stock Option Activity

The following is a summary of the stock option activity for the nine months ended September 30, 2018:


 

 

Shares

 

 

Weighted

Average

Exercise

Price

 

Outstanding, December 31, 2017

 

 

266,884

 

 

$

19.57

 

Granted

 

 

216,336

 

 

 

3.62

 

Forfeited

 

 

(17,814

)

 

 

31.36

 

Outstanding, September 30, 2018

 

 

465,406

 

 

$

11.71

 

Schedule of Stock Option Valuation Assumptions

The fair value of each stock option was estimated on the date of grant using the Black-Scholes option pricing model with the following weighted average assumptions for stock options granted during the nine months ended September 30, 2018:


Dividend yield

 

 

0.0

%

Expected volatility

 

 

91.38

%

Risk-free interest rate

 

 

2.44

%

Expected lives (years)

 

 

6.1

 

Schedule of Options Outstanding, Vested and Exercisable

The following table summarizes information about stock options outstanding at September 30, 2018:


Options Outstanding

 

 

Options Vested and Exercisable

 

9/30/2018

 

 

Weighted

Average

Remaining

Contractual

Life

(Years)

 

 

Weighted

Average

Exercise

Price

 

 

Balance

as of

9/30/2018

 

 

Weighted

Average

Remaining

Contractual

Life

(Years)

 

 

Weighted

Average

Exercise

Price

 

465,406

 

 

8.4

 

 

$11.71

 

 

180,274

 

 

7.3

 

 

$22.08