Quarterly report pursuant to Section 13 or 15(d)

Stockholders' Equity (Tables)

v3.21.1
Stockholders' Equity (Tables)
3 Months Ended
Mar. 31, 2021
Equity [Abstract]  
Summary of Stock Options Activity

The activity for stock options under the Company’s stock plans for the three months ended March 31, 2021 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, 2020

 

 

955,479

 

 

$0.75-$83.30

 

 

$

35.49

 

 

 

1.85

 

 

$

11.81

 

Exercised

 

 

(205,753

)

 

0.75-46.66

 

 

 

18.79

 

 

 

 

 

 

 

 

 

Forfeited

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Outstanding as of March 31, 2021

 

 

749,726

 

 

0.81-83.30

 

 

 

40.07

 

 

 

1.96

 

 

 

15.09

 

Vested and exercisable as of March 31, 2021

 

 

749,726

 

 

0.81-83.30

 

 

 

40.07

 

 

 

1.96

 

 

 

15.09

 

Vested and expected to vest as of March 31, 2021

 

 

749,726

 

 

$0.81-$83.30

 

 

$

40.07

 

 

 

1.96

 

 

$

15.09

 

Summary of Restricted Stock Activity

Stock Awards activity for the three months ended March 31, 2021 is summarized below:

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Weighted-

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

average

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

grant

 

 

 

 

 

 

 

Performance

 

 

 

 

 

 

date fair

 

 

 

 

 

 

 

and

 

 

 

 

 

 

value

 

Restricted stock units

 

Time-based

 

 

time-based

 

 

Total

 

 

per share

 

Unvested restricted stock units as of December 31, 2020

 

 

245,462

 

 

 

88,458

 

 

 

333,920

 

 

$

49.29

 

Granted

 

 

171,340

 

 

 

88,902

 

 

 

260,242

 

 

 

53.14

 

Vested

 

 

(39,293

)

 

 

 

 

 

(39,293

)

 

 

52.58

 

Forfeited/canceled

 

 

(3,742

)

 

 

(29,485

)

 

 

(33,227

)

 

 

48.08

 

Unvested restricted stock units as of March 31, 2021 (1)

 

 

373,767

 

 

 

147,875

 

 

 

521,642

 

 

$

50.95

 

Unvested and expected to vest restricted stock units outstanding as

   of March 31, 2021

 

 

 

 

 

 

 

 

 

 

411,867

 

 

$

51.09

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Weighted-

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

average

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

grant

 

 

 

 

 

 

 

Performance

 

 

 

 

 

 

date fair

 

 

 

 

 

 

 

and

 

 

 

 

 

 

value

 

Restricted stock awards

 

Time-based

 

 

time-based

 

 

Total

 

 

per share

 

Unvested restricted stock awards outstanding as of December 31, 2020

 

 

42,076

 

 

 

33,355

 

 

 

75,431

 

 

$

93.96

 

Vested

 

 

(5,609

)

 

 

 

 

 

(5,609

)

 

 

90.24

 

Forfeited/canceled

 

 

 

 

 

(21,510

)

 

 

(21,510

)

 

 

118.41

 

Unvested restricted stock awards outstanding as of March 31, 2021 (1)

 

 

36,467

 

 

 

11,845

 

 

 

48,312

 

 

$

86.52

 

Unvested and expected to vest restricted stock awards outstanding as

   of March 31, 2021

 

 

 

 

 

 

 

 

 

 

38,978

 

 

$

85.32

 

 

(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, 2021 and March 31, 2020, was as follows:

 

 

 

Three months ended

 

 

 

March 31,

 

 

 

2021

 

 

2020

 

Stock-based compensation expense by type of award:

 

 

 

 

 

 

 

 

Stock option plan awards

 

$

 

 

$

525

 

Restricted stock units and restricted stock awards

 

 

2,330

 

 

 

2,083

 

Employee stock purchase plan

 

 

186

 

 

 

176

 

Total stock-based compensation expense

 

$

2,516

 

 

$

2,784

 

For the three months ended March 31, 2021 and March 31, 2020, respectively, 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,

 

 

 

2021

 

 

2020

 

Cost of revenue

 

$

238

 

 

$

229

 

Research and development

 

 

298

 

 

 

320

 

Sales and marketing

 

 

612

 

 

 

612

 

General and administrative

 

 

1,368

 

 

 

1,623

 

Total stock-based compensation expense

 

$

2,516

 

 

$

2,784