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Stockholders' Equity (Tables)

6 Months Ended

Jun. 30, 2022

Summary of Time-Based RSUs Activity

			Weighted average
	Number		grant date
	of shares		fair value
Outstanding at December 31, 2021	7,392		$	19.78
Granted	3,948			11.22
Vested	(2,026)			14.90
Forfeited	(922)			21.46
Outstanding at June 30, 2022	8,392		$	16.75

Schedule of Stock-Based Compensation Expense

	Three Months Ended June 30,						Six Months Ended June 30,
	2022			2021			2022			2021
Cost of revenue	$	988		$	1,906		$	2,746		$	2,898
Research and development		7,748			4,310			16,713			7,357
Sales, general and administrative		10,283			9,589			22,263			15,715
Total stock-based compensation expense	$	19,019		$	15,805		$	41,722		$	25,970

Schedule of Fair Value of Employee Stock Options

		Three Months Ended June 30,						Six Months Ended June 30,
		2022			2021			2022			2021
Expected term in years			4.6			4.6			4.6			4.6

Expected volatility			72%			70%			70% - 72%			68% - 70%
Risk-free interest rate			2.77%			0.74%			1.76% - 2.77%			0.50% - 0.74%
Dividend yield			—			—			—			—
Weighted average grant date fair value per share		$	3.26		$	14.54		$	6.05		$	18.86

Schedule of Fair Value of Employee Stock Purchase Plan

		Six Months Ended June 30,
		2022			2021
Expected term in years			0.5 – 2.0			0.5 - 2.0
Expected volatility			70%			68%
Risk-free interest rate			0.60% – 1.31%			0.07% - 0.13%
Dividend yield			—			—
Weighted average grant date fair value per share		$	5.42		$	29.26

Time-based stock options [Member]

Summary of Stock Option Activity

		Stock Options Outstanding
							Weighted
		Number					average
		of shares		Exercise price			exercise price
Outstanding at December 31, 2021		12,159		$	1.16 – 46.37		$	11.38
Granted		4,611			4.61 – 16.58			10.65
Exercised		(421)			1.16 – 8.90			4.21
Canceled		(1,050)			2.47 – 46.37			23.98
Outstanding at June 30, 2022		15,299		$	1.16 – 46.37		$	10.67

Performance-based stock options [Member]

Summary of Stock Option Activity

		Stock Options Outstanding
							Weighted
		Number					average
		of shares		Exercise price			exercise price
Outstanding at December 31, 2021		304		$	4.71 – 4.90		$	4.71
Granted		—			—			—
Exercised		—			—			—
Canceled		(1)			4.71 – 4.90			4.75
Outstanding at June 30, 2022		303		$	4.71 – 4.90		$	4.71

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