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Stock-Based Compensation (Tables)
3 Months Ended
Mar. 31, 2024
Schedule of stock-based compensation expense recognized for employees and non-employees

Three Months Ended

March 31, 

By Expense Category:

    

2024

    

2023

Cost of revenue

$

64

$

Research and development

1,011

581

General and administrative

 

3,449

 

1,971

Total stock-based compensation expense

$

4,524

$

2,552

Schedule of unamortized compensation expense and weighted average remaining recognition period

As of March 31, 2024

Weighted

Average

Remaining

Recognition

    

Unamortized

    

Period

Expense

(Years)

Stock options

$

13,698

 

2.0

Restricted and performance stock units

$

29,115

3.0

Schedule of assumptions used for estimating the fair value of stock options

Three Months Ended

March 31, 

    

2024

    

2023

Expected dividend yield

Risk-free interest rate

 

3.98%

 

3.46% - 3.64%

Expected volatility

 

90%

 

94% - 95%

Expected life (years)

 

6.1

 

5.9 - 6.1

Schedule of stock option activity

    

    

    

Weighted

    

Weighted

Average

Average

Contractual

Aggregate

Number of

Exercise

Term

Intrinsic

Shares

Price

(in years)

Value

Outstanding as of December 31, 2023

 

9,573,937

$

4.80

 

  

 

  

Granted

 

7,500

12.86

 

  

 

  

Exercised

 

(23,247)

4.27

 

  

 

  

Cancelled

 

(3,000)

6.37

 

  

 

  

Outstanding as of March 31, 2024

 

9,555,190

$

4.81

 

7.5

$

95,040

Exercisable as of March 31, 2024

 

6,123,944

$

4.47

 

7.2

$

62,992

Vested and expected to vest as of March 31, 2024

 

9,069,464

$

4.76

 

7.5

$

90,617

Schedule of unvested RSU awards outstanding

    

    

    

Weighted

Average

Grant-Date

Number of

Fair Value

RSUs

(per RSU)

Unvested as of December 31, 2023

 

1,657,978

$

6.41

Granted

 

1,857,325

 

12.54

Vested

 

(383,133)

 

6.42

Forfeited

 

(2,277)

 

12.50

Unvested as of March 31, 2024

 

3,129,893

$

10.04

Employee Stock Purchase Plan  
Schedule of assumptions used for estimating the fair value of stock options

Three Months Ended

March 31, 

    

2024

    

2023

Expected dividend yield

Risk-free interest rate

5.27%

5.20%

Expected volatility

90%

64%

Expected life (years)

0.50

0.50