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Stock-Based Compensation (Tables)
6 Months Ended
Jun. 30, 2024
Share-Based Payment Arrangement [Abstract]  
Schedule of Stock Option Activity

The following table summarizes stock option activity for the six months ended June 30, 2024:

 

 

Number of
Stock Options
Outstanding

 

 

Weighted
Average
Exercise Price
per Share

 

 

Weighted
Average
Remaining
Contractual
Term

 

 

Aggregate
Intrinsic
Value

 

 

 

 

 

 

 

 

(in years)

 

 

 

 

Balance at January 1, 2024

 

 

1,749,475

 

 

$

10.61

 

 

 

8.4

 

 

$

3,181

 

Options granted, fair value of $15.72 per share

 

 

2,788,000

 

 

 

20.30

 

 

 

 

 

 

16,048

 

Options exercised

 

 

(33,944

)

 

 

9.14

 

 

 

 

 

 

504

 

Options forfeited

 

 

(82,855

)

 

 

15.52

 

 

 

 

 

 

926

 

Balance at June 30, 2024

 

 

4,420,676

 

 

$

16.64

 

 

 

9.1

 

 

$

42,783

 

Exercisable options at June 30, 2024

 

 

1,026,134

 

 

$

12.26

 

 

 

8.2

 

 

$

15,433

 

Unvested options at June 30, 2024

 

 

3,394,542

 

 

$

17.97

 

 

 

9.4

 

 

$

27,350

 

Schedule of Grant-Date Fair Value of Stock Options Issued, Presented on a Weighted Average Basis

The table below summarizes the assumptions used to determine the grant-date fair value of stock options issued, presented on a weighted average basis during the three and six months ended June 30, 2024 and 2023.

 

Three Months Ended
June 30,

 

 

Six Months Ended
June 30,

 

 

 

2024

 

 

2023

 

 

2024

 

 

2023

 

Risk-free interest rate

 

 

4.5

%

 

 

4.1

%

 

 

4.3

%

 

 

3.8

%

Expected term (in years)

 

 

6.0

 

 

6.1

 

 

 

6.0

 

 

6.1

 

Expected volatility

 

 

92.3

%

 

 

86.4

%

 

 

92.7

%

 

 

85.0

%

Expected dividend yield

 

 

0.0

%

 

 

0.0

%

 

 

0.0

%

 

 

0.0

%

Schedule of Stock Based Compensation Expense

The following table provides a summary of stock-based compensation expense:

 

 

 

Three Months Ended
June 30,

 

 

Six Months Ended
June 30,

 

 

2024

 

 

2023

 

 

2024

 

 

2023

 

Research and development

 

$

1,350

 

 

$

141

 

 

$

2,189

 

 

$

332

 

General and administrative

 

 

1,751

 

 

 

321

 

 

 

2,947

 

 

 

663

 

Total stock-based compensation expense

 

$

3,101

 

 

$

462

 

 

$

5,136

 

 

$

995