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Equity Incentive Plans (Tables)
9 Months Ended
Sep. 30, 2025
Equity Incentive Plans  
Schedule of Stock Option Activity

Weighted

Average

Weighted

Remaining

Average

Contractual

Aggregate

Exercise

Term

Intrinsic

    

Shares

    

Price

    

(Years)

    

Value (in thousands)

Outstanding at December 31, 2024

 

3,755,965

$

3.74

 

7.5

$

4

Granted

 

1,596,058

$

2.04

 

 

$

Exercised

$

$

Forfeited/Cancelled/Expired

 

(339,375)

$

3.37

 

 

$

9

Outstanding at September 30, 2025

 

5,012,648

$

3.23

 

7.5

$

1,617

Vested and expected to vest at September 30, 2025

 

5,012,648

$

3.23

 

7.5

$

1,617

Exercisable at September 30, 2025

 

2,496,564

$

3.89

 

6.1

$

122

Schedule of Restricted Stock Awards and Restricted Stock Unit Activity

Weighted Avg

Grant Date

    

Shares

    

Fair Value

Outstanding at December 31, 2024

220,000

$

2.73

Granted

$

Vested

(67,500)

$

2.65

Cancelled

$

Outstanding at September 30, 2025

152,500

$

2.73

Schedule of Assumptions Used in the Black-Scholes Model

Nine Months Ended September 30, 

    

2025

    

2024

Risk-free interest rate

4.22%-4.28%

4.24%-4.25%

Expected volatility

99.6%-101.4%

89.4%-92.5%

Expected term (in years)

5.5-7.0

5.1-7.0

Expected dividend yield

0%

0%

Schedule of Stock-Based Compensation Expenses

The table below summarizes the total share-based compensation expense included in the Company’s condensed consolidated statements of operations for the periods presented (in thousands):

Three Months Ended September 30, 

Nine Months Ended September 30, 

    

2025

    

2024

    

2025

    

2024

Research and development

$

246

$

323

$

733

$

698

General and administrative

 

376

 

347

 

1,245

 

1,841

Total stock-based compensation

$

622

$

670

$

1,978

$

2,539