Quarterly report pursuant to Section 13 or 15(d)

Stockholders' Equity (Tables)

v3.8.0.1
Stockholders' Equity (Tables)
3 Months Ended
Mar. 31, 2018
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, 2017

 

 

1,836,426

 

 

$0.60-$83.30

 

 

$

30.77

 

 

 

4.58

 

 

$

88.31

 

Granted

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Exercised

 

 

(169,594

)

 

0.60-58.95

 

 

 

26.29

 

 

 

 

 

 

 

 

 

Forfeited

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Expired

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Outstanding as of March 31, 2018

 

 

1,666,832

 

 

$0.60-$83.30

 

 

$

31.23

 

 

 

4.45

 

 

$

91.61

 

Vested and exercisable as of March 31, 2018

 

 

1,134,940

 

 

$0.60-$83.30

 

 

$

25.82

 

 

 

4.31

 

 

$

97.02

 

Vested and expected to vest as of March 31, 2018

 

 

1,631,773

 

 

$0.60-$83.30

 

 

$

30.98

 

 

 

4.44

 

 

$

91.86

 

 

Summary of Restricted Stock Activity

Stock Awards activity for the three months ended March 31, 2018, is summarized below:

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Weighted-

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

average

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

grant

 

 

 

 

 

 

 

Performance

 

 

 

 

 

 

date fair

 

 

 

 

 

 

 

and

 

 

 

 

 

 

value

 

 

 

Time-based

 

 

time-based

 

 

Total

 

 

per share

 

Unvested restricted stock units outstanding as of December 31, 2017

 

 

42,028

 

 

 

13,109

 

 

 

55,137

 

 

$

90.05

 

Granted

 

 

20,049

 

 

 

 

 

 

20,049

 

 

 

122.00

 

Vested

 

 

(1,836

)

 

 

(4,370

)

 

 

(6,206

)

 

 

87.38

 

Forfeited/canceled

 

 

(546

)

 

 

 

 

 

(546

)

 

 

91.52

 

Unvested restricted stock units outstanding as of March 31, 2018 (1)

 

 

59,695

 

 

 

8,739

 

 

 

68,434

 

 

$

99.64

 

Unvested and expected to vest restricted stock units outstanding as

   of March 31, 2018

 

 

 

 

 

 

 

 

 

 

63,143

 

 

$

99.79

 

Unvested restricted stock awards outstanding as of December 31, 2017

 

 

20,789

 

 

 

20,785

 

 

 

41,574

 

 

$

91.52

 

Granted

 

 

21,222

 

 

 

31,830

 

 

 

53,052

 

 

 

122.00

 

Vested

 

 

 

 

 

(6,928

)

 

 

(6,928

)

 

 

91.52

 

Forfeited/canceled

 

 

 

 

 

 

 

 

 

 

 

 

Unvested restricted stock awards outstanding as of March 31, 2018 (1)

 

 

42,011

 

 

 

45,687

 

 

 

87,698

 

 

$

108.30

 

Unvested and expected to vest restricted stock awards outstanding as

   of March 31, 2018

 

 

 

 

 

 

 

 

 

 

67,432

 

 

$

108.07

 

 

(1)

Outstanding restricted stock units and restricted stock awards are based on the maximum payout of the targeted number of shares.  

Summary of Stock-based Compensation Expense

Stock-based compensation

Stock-based compensation expense recognized for the three months ended March 31, 2018 and March 31, 2017 was as follows:

 

 

 

Three months ended

 

 

 

March 31,

 

 

 

2018

 

 

2017

 

Stock-based compensation expense by type of award:

 

 

 

 

 

 

 

 

Stock option plan awards

 

$

1,951

 

 

$

1,744

 

Restricted stock units and restricted stock awards

 

 

1,239

 

 

 

24

 

Employee stock purchase plan

 

 

191

 

 

 

123

 

Total stock-based compensation expense

 

$

3,381

 

 

$

1,891

 

For the three months ended March 31, 2018 and March 31, 2017, stock-based compensation expense recognized under ASC 718, included in cost of revenue, research and development expense, sales and marketing expense, and general and administrative expense, was as follows:

 

 

 

Three months ended

 

 

 

March 31,

 

 

 

2018

 

 

2017

 

Cost of revenue

 

$

273

 

 

$

191

 

Research and development

 

 

331

 

 

 

223

 

Sales and marketing

 

 

548

 

 

 

315

 

General and administrative

 

 

2,229

 

 

 

1,162

 

Total stock-based compensation expense

 

$

3,381

 

 

$

1,891