v3.22.4
Stockholders' Equity (Tables)
 12 Months Ended
Dec. 31, 2022
Share-Based Payment Arrangement [Abstract]  
Summary of RSU and RSA Award Activity
The following table summarizes the RSU and RSA activity during the year ended December 31, 2022:
Class A
Number of Shares		Weighted-
Average
Grant Date
Fair Value
(in thousands, except per share data)
Unvested at December 31, 202186,180$26.07 
Granted134,446$15.17 
Vested(62,349)$19.36 
Forfeited(25,885)$25.46 
Unvested at December 31, 2022132,392$18.28 
Summary of Stock Option Award Activity
The following table summarizes the stock option award activity under the Stock Plans during the year ended December 31, 2022:
Class A
Number
of Shares		Class B
Number
of Shares		Weighted-
Average
Exercise
Price		Weighted-
Average
Remaining
Contractual
Term
(in years)
Aggregate Intrinsic Value(1)
(in thousands, except per share data)
Outstanding at December 31, 20213,676628$10.59 4.19$157,374 
Granted119—$15.03 
Exercised(334)(58)$10.94 
Forfeited(872)—$14.33 
Outstanding at December 31, 20222,589570$9.68 4.05$9,669 
Exercisable at December 31, 20222,463570$9.47 3.83$9,662 
Vested and expected to vest at December 31, 20222,587570$9.68 4.05$9,669 
(1)
The aggregate intrinsic value is calculated as the difference between the exercise price of the underlying stock option awards and the closing market price of our Class A common stock as of December 31, 2022 and December 31, 2021, respectively.
Summary of Total Stock-based Compensation Expense
Total stock-based compensation expense by function was as follows:
Year Ended December 31,
202220212020
(in thousands)
Cost of revenue$12,288 $17,221 $9,367 
Research and development970,746 740,130 533,272 
Sales and marketing203,092 164,241 108,270 
General and administrative201,661 170,543 119,273 
Total$1,387,787 $1,092,135 $770,182