Convertible Preferred Stock and Stockholders’ Equity (Deficit) (Tables)

12 Months Ended

Dec. 31, 2021

Equity [Abstract]

Summary of Convertible Preferred Stock

The authorized, issued and outstanding shares of convertible preferred stock as of December 31, 2020 consist of the following (in thousands, except share amounts):

	Shares Authorized		Shares Issued and Outstanding		Liquidation Preference		Carrying Value
Series Seed 2		4,148,832		4,148,832	$	17,674	$	17,628
Series Seed		2,689,997		2,689,997		4,035		3,996
Total		6,838,829		6,838,829	$	21,709	$	21,624

Summary of Stock Option Activity

	Number of Outstanding Options			Weighted- Average Exercise Price		Weighted- Average Remaining Contractual Term (in years)		Aggregate Intrinsic Value
Balance at December 31, 2020		1,096,533		$	0.47		9.31	$	3,214
Granted		5,230,595		$	10.69
Exercised		(635,316	)	$	2.59
Forfeited or cancelled		(37,149	)	$	6.16
Balance at December 31, 2021		5,654,663		$	9.65		9.22	$	62,954
Vested and expected to vest at December 31, 2021		5,654,663		$	9.65		9.22	$	62,954
Exercisable at December 31, 2021		5,066,553		$	7.37		9.17	$	62,645

Summary of Fair Value of Stock Option Grants

	Year Ended December 31,
	2021		2020
Risk-free interest rate	0.8% – 1.6%		0.7% – 1.8%
Expected volatility	83% – 87%		85%
Expected term (in years)	5.5 – 10.0			10.0
Expected dividend yield		—		—

Summary of Stock-Based Compensation Expense

	Year Ended December 31,
	2021		2020
Research and development	$	3,018	$	22
General and administrative		3,892		50
Total	$	6,910	$	72

Summary of Unvested Shares and Unvested Stock Liabilities

A summary of the Company’s unvested shares and unvested stock liabilities is as follows (in thousands, except share data):

	Number of Unvested Shares			Unvested Stock Liabilities
Balance at December 31, 2020		211,137		$	52
Early exercised shares		521,896			1,626
Vested shares		(353,208	)		(475	)
Balance at December 31, 2021		379,825		$	1,203

Summary of Common Stock Reserved for Future Issuance

	December 31,		December 31,
	2021		2020
Conversion of preferred stock		—		8,760,535
Common stock options outstanding		5,654,663		1,096,533
Shares available for issuance under the Plans		3,629,039		220,147
Shares available for issuance under the ESPP		454,548		—
Total		9,738,250		10,077,215