v3.26.1
Stock-Based Awards (Tables)
6 Months Ended
Jun. 30, 2026
Stock-Based Awards  
Summary of assumptions used to determine fair value of stock options granted

  ​ ​ ​

Six Months Ended

June 30, 

2026

2025

Risk-free interest rate

 

3.97

%

4.32

%

Expected term (in years)

 

6.2

6.2

Expected volatility

 

72.18

%

82.71

%

Expected dividend yield

 

0

%

0

%

Summary of stock option activity

Weighted

Average

Weighted

Remaining

Aggregate

Average

Contractual

Intrinsic

Number

Exercise

Term

Value

of Shares

Price

(in years)

(in thousands)

Outstanding as of December 31, 2025

 

11,269,399

$

6.72

7.7

$

8,597

Granted

 

4,785,750

3.70

Exercised

(148,500)

1.78

357

Forfeited and cancelled

 

(513,657)

3.85

Outstanding as of June 30, 2026

 

15,392,992

$

5.93

7.8

$

32,430

Options vested and expected to vest as of June 30, 2026

 

15,392,992

$

5.93

7.8

$

32,430

Options exercisable as of June 30, 2026

 

5,894,454

$

10.33

5.7

$

10,528

Summary of restricted stock units activity

Weighted

Average

Aggregate

Grant Date

Intrinsic

Number

Fair Value

Value

of Shares

Per Share

(in thousands)

Outstanding as of December 31, 2025

2,803,231

$

3.40

Granted

1,701,792

3.68

Vested

(846,885)

4.47

$

2,955

Forfeited and cancelled

(216,875)

3.70

Outstanding as of June 30, 2026

3,441,263

$

3.25

Summary of stock-based compensation expense

Three Months Ended

Six Months Ended

June 30, 

June 30, 

(In thousands)

    

2026

    

2025

    

2026

    

2025

Cost of revenue

  ​ ​ ​

$

(13)

  ​ ​ ​

$

190

$

15

  ​ ​ ​

$

409

Research and development

784

1,106

1,946

2,291

General and administrative

 

1,901

 

1,767

 

3,909

 

3,898

Total stock-based compensation expense

$

2,672

$

3,063

$

5,870

$

6,598