v3.25.2
Stock-Based Compensation (Tables)
 6 Months Ended
Jun. 30, 2025
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, 2024

 

 

6,113,155

 

 

$

3.91

 

 

 

6.3

 

 

$

27,008

 

Granted

 

 

781,957

 

 

 

3.28

 

 

 

 

 

 

 

Expired

 

 

—

 

 

 

—

 

 

 

 

 

 

 

Cancelled

 

 

(69,995

)

 

 

4.32

 

 

 

 

 

 

 

Exercised

 

 

(46,468

)

 

 

1.03

 

 

 

 

 

 

 

Outstanding – June 30, 2025

 

 

6,778,649

 

 

$

3.85

 

 

 

6.3

 

 

$

3,143

 

Vested and expected to vest at June 30, 2025

 

 

6,615,167

 

 

$

3.86

 

 

 

6.2

 

 

$

3,107

 

Vested and exercisable at June 30, 2025

 

 

5,686,381

 

 

$

3.90

 

 

 

5.8

 

 

$

2,863

 
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, 2024

 

 

1,631,162

 

 

$

2.60

 

Granted

 

 

942,317

 

 

 

3.60

 

Forfeited

 

 

(54,489

)

 

 

3.97

 

Vested

 

 

(623,374

)

 

 

2.73

 

Outstanding – June 30, 2025

 

 

1,895,616

 

 

$

3.01

 
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,

 

 

 

2025

 

 

2024

 

 

2025

 

 

2024

 

Research and development expense

 

$

453

 

 

$

918

 

 

$

909

 

 

$

1,444

 

Sales and marketing expense

 

 

67

 

 

 

92

 

 

 

166

 

 

 

177

 

General and administrative expense

 

 

824

 

 

 

1,013

 

 

 

1,762

 

 

 

2,095

 

Total employee stock-based compensation

 

$

1,344

 

 

$

2,023

 

 

$

2,837

 

 

$

3,716

 
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, 2025, was as follows (in thousands, except years):

 

 

 

Unrecognized
Stock-Based
Compensation
Expense

 

 

Weighted-Average
Period of
Recognition
(in years)

 

Stock Options

 

$

2,053

 

 

 

2.3

 

RSUs

 

 

4,223

 

 

 

2.7

 

Total unrecognized stock-based compensation expense

 

$

6,276