v3.26.3
Stock-Based Compensation (Tables)
 9 Months Ended
Sep. 30, 2026
Share-Based Payment Arrangement [Abstract]  
Summary of Options Granted and Outstanding The following table summarizes information about these options granted and outstanding:

 

 

 

Number of
Shares
Subject to
Options
Outstanding

 

 

Weighted-
Average
Exercise
Price Per
Share

 

 

Weighted-
Average
Remaining
Contractual
Life (In
Years)

 

 

Aggregate
Intrinsic
Value (In
Thousands)

 

Outstanding – December 31, 2025

 

 

6,524,279

 

 

$

3.88

 

 

 

5.8

 

 

$

3,353

 

Granted

 

 

1,126,039

 

 

 

2.00

 

 

 

 

 

 

 

Expired

 

 

(721

)

 

 

1.62

 

 

 

 

 

 

 

Cancelled

 

 

(197,256

)

 

 

4.36

 

 

 

 

 

 

 

Exercised

 

 

(63,176

)

 

 

1.76

 

 

 

 

 

 

 

Outstanding – September 30, 2026

 

 

7,389,165

 

 

$

3.60

 

 

 

5.8

 

 

$

1,135

 

Vested and expected to vest at September 30, 2026

 

 

7,135,604

 

 

$

3.64

 

 

 

5.7

 

 

$

1,118

 

Vested and exercisable at September 30, 2026

 

 

5,957,930

 

 

$

3.86

 

 

 

4.9

 

 

$

1,034

 
Summary of Information about RSUs Granted and Outstanding

The following table summarizes information about RSUs granted and outstanding under the 2021 Plan:

 

 

 

Number of Awards

 

 

Weighted-Average
Grant Date Fair
Value

 

Outstanding – December 31, 2025

 

 

1,470,876

 

 

$

3.27

 

Granted

 

 

2,032,891

 

 

 

1.98

 

Forfeited

 

 

(356,194

)

 

 

2.78

 

Vested

 

 

(679,308

)

 

 

2.67

 

Outstanding – September 30, 2026

 

 

2,468,265

 

 

$

2.45

 
Schedule of Impact of Stock-based Compensation Expense in Statements of Operations

The following table presents the impact of stock-based compensation expense in the statements of operations for the periods indicated (in thousands):

 

 

 

Three Months Ended

 

 

Nine Months Ended

 

 

 

September 30,

 

 

September 30,

 

 

 

2026

 

 

2025

 

 

2026

 

 

2025

 

Research and development expense

 

$

414

 

 

$

466

 

 

$

941

 

 

$

1,376

 

Selling and marketing expense

 

 

106

 

 

 

83

 

 

 

243

 

 

 

249

 

General and administrative expense

 

 

761

 

 

 

705

 

 

 

1,755

 

 

 

2,466

 

Total employee stock-based compensation

 

$

1,281

 

 

$

1,254

 

 

$

2,939

 

 

$

4,091

 

 
Summary of Unrecognized Stock-based Compensation Expense for Outstanding Unvested Stock Options and RSUs

The information about unrecognized stock-based compensation expense for outstanding unvested stock options and RSUs as of September 30, 2026, was as follows (in thousands, except years):

 

 

 

Unrecognized
Stock-Based
Compensation
Expense

 

 

Weighted-Average
Period of
Recognition
(in years)

 

Stock Options

 

$

1,841

 

 

 

2.7

 

RSUs

 

 

4,479

 

 

 

2.7

 

Total unrecognized stock-based compensation expense

 

$

6,320