v3.26.1
Stock-Based Compensation (Tables)
 6 Months Ended
Jun. 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

 

 

663,232

 

 

 

1.99

 

 

 

 

 

 

 

Expired

 

 

(721

)

 

 

1.62

 

 

 

 

 

 

 

Cancelled

 

 

(60,903

)

 

 

4.25

 

 

 

 

 

 

 

Exercised

 

 

(36,587

)

 

 

1.73

 

 

 

 

 

 

 

Outstanding – June 30, 2026

 

 

7,089,300

 

 

$

3.71

 

 

 

5.8

 

 

$

458

 

Vested and expected to vest at June 30, 2026

 

 

6,855,824

 

 

$

3.75

 

 

 

5.6

 

 

$

458

 

Vested and exercisable at June 30, 2026

 

 

5,910,099

 

 

$

3.90

 

 

 

5.1

 

 

$

458

 
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

 

 

1,429,163

 

 

 

1.96

 

Forfeited

 

 

(301,185

)

 

 

2.86

 

Vested

 

 

(403,051

)

 

 

2.73

 

Outstanding – June 30, 2026

 

 

2,195,803

 

 

$

2.57

 
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

 

 

Six Months Ended

 

 

 

June 30,

 

 

June 30,

 

 

 

2026

 

 

2025

 

 

2026

 

 

2025

 

Research and development expense

 

$

259

 

 

$

453

 

 

$

527

 

 

$

909

 

Selling and marketing expense

 

 

66

 

 

 

67

 

 

 

137

 

 

 

166

 

General and administrative expense

 

 

498

 

 

 

824

 

 

 

994

 

 

 

1,762

 

Total employee stock-based compensation

 

$

823

 

 

$

1,344

 

 

$

1,658

 

 

$

2,837

 
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 June 30, 2026, was as follows (in thousands, except years):

 

 

 

Unrecognized
Stock-Based
Compensation
Expense

 

 

Weighted-Average
Period of
Recognition
(in years)

 

Stock Options

 

$

1,652

 

 

 

3.0

 

RSUs

 

 

4,258

 

 

 

2.8

 

Total unrecognized stock-based compensation expense

 

$

5,910