v3.26.1
Stock-based Compensation (Tables)
6 Months Ended
Jun. 30, 2026
Share-Based Payment Arrangement [Abstract]  
Schedule of Stock Option Award Activity

The following is a summary of the stock option award activity during the six months ended June 30, 2026:

 

 

 

Number
of Stock
Options

 

 

Weighted-
Average
Exercise
Price

 

 

Weighted-
Average
Remaining
Contractual
Term
(in years)

 

 

Aggregate
Intrinsic
Value
(in thousands)

 

Outstanding at December 31, 2025

 

 

502,027

 

 

$

50.42

 

 

 

8.05

 

 

$

41

 

Granted

 

 

1,083,658

 

 

 

1.75

 

 

 

 

 

 

 

Exercised

 

 

 

 

 

 

 

 

 

 

 

 

Forfeited

 

 

(5,723

)

 

 

8.01

 

 

 

 

 

 

 

Outstanding at June 30, 2026

 

 

1,579,962

 

 

$

17.19

 

 

 

8.85

 

 

$

 

Exercisable at June 30, 2026

 

 

415,044

 

 

$

56.48

 

 

 

6.72

 

 

$

 

Options expected to vest as of June 30, 2026

 

 

1,164,918

 

 

$

3.19

 

 

 

9.60

 

 

$

 

Schedule of Estimating Fair Value of the Stock Options and Common stock Warrants Granted The following table presents the assumptions and the Company’s methodology for developing each of the assumptions used:

 

 

 

June 30,
2026

 

June 30,
2025

Volatility

 

101.73% - 102.98%

 

96.66% - 99.24%

Expected life (years)

 

5.27 - 6.08

 

5.27 - 6.08

Risk-free interest rate

 

3.83% - 4.07%

 

4.00% - 4.24%

Dividend rate

 

 

Schedule of Stock-based Compensation Expense

Stock-based compensation expense was recorded in the following line items in the condensed statements of operations for the three and six months ended June 30, 2026 and 2025 (in thousands):

 

 

 

Three Months Ended
June 30,

 

 

Six Months Ended
June 30,

 

 

 

2026

 

 

2025

 

 

2026

 

 

2025

 

Research and development

 

$

131

 

 

$

298

 

 

$

298

 

 

$

584

 

General and administrative

 

 

221

 

 

 

657

 

 

 

455

 

 

 

1,202

 

Total stock-based compensation expense

 

$

352

 

 

$

955

 

 

$

753

 

 

$

1,786