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
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]  
Summary of stock option activity
The following table summarizes the activity for all stock options under all of the Company’s equity incentive plans for the nine months ended September 30, 2018 (shares and aggregate intrinsic value in thousands):
 
 
Number of Options
 
Weighted Average Exercise Price
 
Weighted Average Remaining Contractual Life
 
Aggregate Intrinsic Value
Outstanding at December 31, 2017
 
16,268

 
$
5.70

 
7.41
 
$
14,832

Granted
 
1,469

 
8.48

 

 

Exercised
 
(2,555
)
 
5.40

 

 

Cancelled / forfeited
 
(834
)
 
6.56

 

 

Outstanding at September 30, 2018
 
14,348

 
$
5.98

 
6.81
 
$
93,159

 
 
 
 
 
 
 
 
 
Options vested and exercisable at September 30, 2018
 
8,093

 
$
5.53

 
5.56
 
$
56,270

Summary of activity for all restricted stock units (RSUs)
The following table summarizes the activity for all restricted stock units (“RSUs”) under all of the Company’s equity incentive plans for the nine months ended September 30, 2018 (shares in thousands):
 
 
Number of Awards
 
Weighted Average Grant Date Fair Value
Unvested balance at December 31, 2017
 
5,330

 
$
5.82

Granted
 
1,909

 
8.54

Issued
 
(1,451
)
 
6.45

Cancelled / forfeited
 
(1,170
)
 
5.62

Unvested balance at September 30, 2018
 
4,618

 
$
6.80

Summary of stock-based compensation expense
The Company recognized stock-based compensation expense, including ESPP expenses, in the consolidated statements of operations as follows (in thousands):
 
 
Three Months Ended September 30,
 
Nine Months Ended September 30,
 
 
2018
 
2017
 
2018
 
2017
Cost of customer agreements and incentives
 
$
648

 
$
(69
)
 
$
1,926

 
$
1,792

Cost of solar energy systems and product sales
 
188

 
171

 
545

 
441

Sales and marketing
 
1,102

 
1,580

 
6,086

 
4,304

Research and development
 
313

 
259

 
918

 
594

General and administration
 
3,490

 
3,164

 
12,507

 
9,363

Total
 
$
5,741

 
$
5,105

 
$
21,982

 
$
16,494