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Equity Incentive Plans (Tables)
6 Months Ended
Jun. 30, 2026
Equity Incentive Plans  
Schedule of Stock Option Activity

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Options Outstanding

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Weighted

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Average

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Weighted

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Remaining

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Average

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Contractual

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Aggregate

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Exercise

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Term

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Intrinsic

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  ​ ​ ​

Shares

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Price

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(Years)

  ​ ​ ​

Value (in thousands)

Outstanding at December 31, 2025

 

4,803,921

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$

3.22

 

7.4

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$

15,045

Granted

 

1,858,076

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$

11.65

 

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$

—

Exercised

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(364,725)

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$

3.33

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$

2,041

Forfeited/Cancelled/Expired

 

(23,801)

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$

18.93

 

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$

89

Outstanding at June 30, 2026

 

6,273,471

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$

5.65

 

7.9

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$

14,800

Vested and expected to vest at June 30, 2026

 

6,273,471

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$

5.65

 

7.9

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$

14,800

Exercisable at June 30, 2026

 

2,869,012

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$

3.62

 

6.5

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$

8,411

Schedule of Restricted Stock Awards and Restricted Stock Unit Activity

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Weighted Avg

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Grant Date

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Shares

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Fair Value

Outstanding at December 31, 2025

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152,500

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$

2.73

Granted

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—

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$

—

Vested

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(17,500)

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$

3.38

Cancelled

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—

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$

—

Outstanding at June 30, 2026

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135,000

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$

2.65

Schedule of Assumptions Used in the Black-Scholes Model

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Three Months Ended June 30, 

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Six Months Ended June 30, 

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2026

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2025

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2026

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2025

Risk-free interest rate

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4.01%

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—

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3.76%-4.01%

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4.27%-4.30%

Expected volatility

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98.36%

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—

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98.36%-100.00%

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99.64%-101.43%

Expected term (in years)

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6.00

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—

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5.50-7.00

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5.75-6.25

Expected dividend yield

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0%

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—

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0%

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0%

Schedule of Stock-Based Compensation Expenses

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Three Months Ended June 30,

 

Six Months Ended June 30, 

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2026

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2025

 

2026

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2025

Research and development

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$

1,456

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$

167

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$

1,916

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$

487

General and administrative

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1,935

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408

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2,550

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869

Total stock-based compensation expense

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$

3,391

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$

575

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$

4,466

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$

1,356