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Stockholders' Equity (Tables)

9 Months Ended

Sep. 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	5,054			10.24
Vested	(2,395)			14.58
Forfeited	(1,381)			19.86
Outstanding at September 30, 2022	8,670		$	15.64

Schedule of Stock-Based Compensation Expense

	Three Months Ended September 30,						Nine Months Ended September 30,
	2022			2021			2022			2021
Cost of revenue	$	934		$	1,837		$	3,680		$	4,734
Research and development		7,519			5,162			24,232			12,519
Sales, general and administrative		10,483			9,897			32,746			25,613
Merger-related expenses - stock-settled		—			6,349			—			6,349
Merger-related expenses - milestone		—			5,202			—			5,202
Stock-based compensation		18,936			28,447			60,658			54,417
Merger-related expenses - cash-settled		—			7,373			—			7,373
Total stock-based compensation expense	$	18,936		$	35,820		$	60,658		$	61,790

Schedule of Fair Value of Employee Stock Options

		Three Months Ended September 30,						Nine Months Ended September 30,
		2022			2021			2022			2021
Expected term in years			4.6			2.1 — 4.6			4.6			2.1 —  4.6
Expected volatility			75%			67% — 80%			70% - 76%			67% — 80%
Risk-free interest rate			3.66%			0.05% — 0.71%			0.41% - 3.66%			0.05% — 0.74%
Dividend yield			—			—			—			—
Weighted average grant date fair value per share		$	4.94		$	5.97		$	5.93		$	15.63

Schedule of Fair Value of Employee Stock Purchase Plan

		Three Months Ended September 30,						Nine Months Ended September 30,
		2022			2021			2022			2021
Expected term in years			0.5 — 2.0			0.5 — 2.0			0.5 — 2.0			0.5 — 2.0
Expected volatility			97%			67%			70% — 97%			67% — 68%
Risk-free interest rate			3.34% — 3.51%			0.06% — 0.20%			0.60% — 3.51%			0.06% — 0.20%
Dividend yield			—			—			—			—
Weighted average grant date fair value per share		$	3.40		$	16.73		$	4.28		$	25.07

Time-based stock options [Member]

Summary of Stock Option Activity

							Weighted
		Number					average
		of shares		Exercise price			exercise price
Outstanding at December 31, 2021		12,159		$	1.16 – 46.37		$	11.38
Granted		5,211			4.61 – 16.58			10.34
Exercised		(650)			1.16 – 8.90			3.33
Canceled		(1,485)			2.47 – 46.37			20.96
Outstanding at September 30, 2022		15,235		$	1.16 – 46.37		$	10.43

Performance-based stock options [Member]

Summary of Stock Option Activity

							Weighted
		Number					average
		of shares		Exercise price			exercise price
Outstanding at December 31, 2021		304		$	4.71 – 4.90		$	4.71
Granted		—			—			—
Exercised		—			—			—
Canceled		(2)			4.71 – 4.90			4.75
Outstanding at September 30, 2022		302		$	4.71 – 4.90		$	4.71

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