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Stock-based Compensation (Tables)
3 Months Ended
Mar. 31, 2026
Stock-based Compensation  
Schedule of weighted average valuation assumptions for stock options

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For the Three Months Ended

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March 31,

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  ​ ​ ​

2026

  ​ ​ ​

Per share fair value of common stock

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$

3.90

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Expected volatility

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70.50

%  

Expected dividends

​

 

—

%  

Expected term (in years)

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6.25

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Risk-free rate

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3.8

%  

Schedule of stock option activity

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Weighted-

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Weighted-Average

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​

Number of

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Average Exercise

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Remaining Contractual 

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Intrinsic Value (In

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  ​ ​ ​

Options

  ​ ​ ​

Price

  ​ ​ ​

Term (In Years)

  ​ ​ ​

Thousands)

Outstanding as of January 1, 2026

 

1,212,246

​

$

8.68

 

6.83

​

$

1,086

Granted

 

294,750

​

 

3.90

 

​

​

 

​

Outstanding as of March 31, 2026

 

1,506,996

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$

7.74

 

7.22

​

$

748

Options exercisable as of March 31, 2026

 

822,040

​

$

6.38

 

5.40

​

$

748

Vested and expected to vest as of March 31, 2026

 

1,506,996

​

$

7.74

 

7.22

​

$

748

Schedule of classification of stock-based compensation

The following table illustrates the classification of stock-based compensation in the condensed consolidated statements of operations and comprehensive loss (in thousands):

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For the Three Months Ended
March 31,

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  ​ ​ ​

2026

  ​ ​ ​

2025

  ​ ​ ​

Research and development

​

$

93

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$

29

​

General and administrative

​

 

277

​

 

51

​

Total stock-based compensation

​

$

370

​

$

80

​