Quarterly report pursuant to Section 13 or 15(d)

Stockholders' Equity (Tables)

v3.8.0.1
Stockholders' Equity (Tables)
9 Months Ended
Sep. 30, 2017
Equity [Abstract]  
Summary of Stock Options Activity

The activity for stock options under the Company’s stock plans is as follows:  

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Remaining

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

weighted-

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Weighted-

 

 

average

 

 

Per share

 

 

 

 

 

 

 

 

 

 

 

average

 

 

contractual

 

 

average

 

 

 

 

 

 

 

Price per

 

 

exercise

 

 

terms

 

 

intrinsic

 

 

 

Options

 

 

share

 

 

price

 

 

(in years)

 

 

value

 

Outstanding as of December 31, 2016

 

 

2,355,527

 

 

$0.60-$58.95

 

 

$

28.22

 

 

 

5.42

 

 

$

38.95

 

Granted

 

 

64,498

 

 

 

83.30

 

 

 

83.30

 

 

 

 

 

 

 

 

 

Exercised

 

 

(395,739

)

 

0.60-56.72

 

 

 

23.48

 

 

 

 

 

 

 

 

 

Forfeited

 

 

(63,173

)

 

24.52-58.95

 

 

 

43.74

 

 

 

 

 

 

 

 

 

Expired

 

 

(33

)

 

 

8.70

 

 

 

8.70

 

 

 

 

 

 

 

 

 

Outstanding as of September 30, 2017

 

 

1,961,080

 

 

0.60-83.30

 

 

 

30.49

 

 

 

4.83

 

 

 

64.61

 

Vested and exercisable as of September 30, 2017

 

 

1,166,512

 

 

0.60-83.30

 

 

 

22.89

 

 

 

4.63

 

 

 

72.21

 

Vested and expected to vest as of September 30, 2017

 

 

1,907,844

 

 

$0.60-$83.30

 

 

$

30.20

 

 

 

4.82

 

 

$

64.90

 

 

Summary of Restricted Stock Activity

Restricted stock activity for the nine months ended September 30, 2017, is summarized below:

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Weighted-

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

average grant

 

 

 

 

 

 

 

Performance and

 

 

 

 

 

 

date fair value

 

 

 

Time-based

 

 

time-based

 

 

Total

 

 

per share

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Unvested restricted stock units as of December 31, 2016

 

 

 

 

 

 

 

 

 

 

$

 

Granted

 

 

41,100

 

 

 

13,109

 

 

 

54,209

 

 

 

89.64

 

Vested

 

 

 

 

 

 

 

 

 

 

 

 

Forfeited/canceled

 

 

 

 

 

 

 

 

 

 

 

 

Unvested restricted stock units as of September 30, 2017

 

 

41,100

 

 

 

13,109

 

 

 

54,209

 

 

$

89.64

 

Unvested restricted stock awards outstanding as of December 31, 2016

 

 

 

 

 

 

 

 

 

 

$

 

Granted

 

 

20,789

 

 

 

20,785

 

 

 

41,574

 

 

 

91.52

 

Vested

 

 

 

 

 

 

 

 

 

 

 

 

Forfeited/canceled

 

 

 

 

 

 

 

 

 

 

 

 

Unvested restricted stock awards outstanding as of September 30, 2017

 

 

20,789

 

 

 

20,785

 

 

 

41,574

 

 

$

91.52

 

Unvested and expected to vest restricted stock awards outstanding as of September 30, 2017

 

 

17,024

 

 

 

17,027

 

 

 

34,051

 

 

$

91.52

 

 

Summary of Stock-based Compensation Expense

Stock-based compensation

Stock-based compensation expense recognized for the three months and nine months ended September 30, 2017 and September 30, 2016 was as follows:

 

 

 

Three months ended

 

 

Nine months ended

 

 

 

September 30,

 

 

September 30,

 

 

 

2017

 

 

2016

 

 

2017

 

 

2016

 

Stock-based compensation expense by type of award:

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Stock option plan awards

 

$

2,012

 

 

$

1,858

 

 

$

5,811

 

 

$

5,063

 

Restricted stock units and restricted stock awards

 

 

402

 

 

 

 

 

 

450

 

 

 

 

Employee stock purchase plan

 

 

109

 

 

 

95

 

 

 

369

 

 

 

341

 

Total stock-based compensation expense

 

$

2,523

 

 

$

1,953

 

 

$

6,630

 

 

$

5,404

 

For the three months and nine months ended September 30, 2017 and September 30, 2016, stock-based compensation expense recognized under ASC 718, included in cost of revenues, sales and marketing expense, general and administrative expense, and research and development expense was as follows:

 

 

 

Three months ended

 

 

Nine months ended

 

 

 

September 30,

 

 

September 30,

 

 

 

2017

 

 

2016

 

 

2017

 

 

2016

 

Cost of revenue

 

$

205

 

 

$

175

 

 

$

608

 

 

$

454

 

Research and development

 

 

260

 

 

 

223

 

 

 

733

 

 

 

561

 

Sales and marketing

 

 

407

 

 

 

318

 

 

 

1,069

 

 

 

859

 

General and administrative

 

 

1,651

 

 

 

1,237

 

 

 

4,220

 

 

 

3,530

 

Total stock-based compensation expense

 

$

2,523

 

 

$

1,953

 

 

$

6,630

 

 

$

5,404