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Stockholders' Equity (Tables)
12 Months Ended
Dec. 31, 2021
Equity [Abstract]  
Summary of Company's Stock Option Activity

The following table summarizes the Company’s stock option activity during the year ended December 31, 2021:

 

 

 

Number of
Shares

 

 

Weighted-
Average
Exercise
Price

 

 

Weighted-
Average
Remaining
Contractual
Term
(years)

 

 

Aggregate
Intrinsic Value
(in thousands)

 

Outstanding at December 31, 2020

 

 

16,441,994

 

 

$

30.40

 

 

 

 

 

 

 

Granted

 

 

1,879,092

 

 

$

43.62

 

 

 

 

 

 

 

Exercised

 

 

(577,627

)

 

$

22.25

 

 

 

 

 

 

 

Cancelled/forfeited

 

 

(2,657,318

)

 

$

34.83

 

 

 

 

 

 

 

Outstanding at December 31, 2021

 

 

15,086,141

 

 

$

31.58

 

 

 

5.8

 

 

$

16,416

 

Vested and exercisable at December 31, 2021

 

 

11,003,784

 

 

$

30.09

 

 

 

5.1

 

 

$

12,879

 

Unvested at December 31, 2021

 

 

4,082,357

 

 

$

35.60

 

 

 

7.7

 

 

$

3,537

 

Summary of Company's RSU Activity

The following table summarizes the Company’s restricted stock activity during the year ended December 31, 2021:

 

 

 

Number of
Shares

 

 

Weighted
Average Grant
Date Fair Value

 

 

Aggregate
Intrinsic Value
(in thousands)

 

 

Outstanding at December 31, 2020

 

 

2,207,247

 

 

$

33.81

 

 

 

 

 

Granted

 

 

1,713,829

 

 

$

35.84

 

 

 

 

 

Vested

 

 

(491,813

)

 

$

30.10

 

 

 

 

 

Cancelled/forfeited

 

 

(748,473

)

 

$

38.74

 

 

 

 

 

Outstanding at December 31, 2021

 

 

2,680,790

 

 

$

34.41

 

 

$

62,570

 

 

There were 1,276,936