Quarterly report [Sections 13 or 15(d)]

Stock-Based Compensation (Tables)

v3.25.1
Stock-Based Compensation (Tables)
3 Months Ended
Mar. 31, 2025
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]  
Schedule of Estimated Grant-Date Fair Value of Stock-Based Awards Using Black-Scholes Option Pricing Model Assumptions

The following table presents, on a weighted-average basis, the assumptions used in the Black-Scholes option-pricing model to determine the grant date fair value of stock purchase rights granted under the 2021 ESPP during the periods presented:

 

 

Three Months Ended March 31,

 

 

2025

 

2024

Expected volatility

 

42.14%

 

49.59%

Risk-free interest rate

 

4.44%

 

5.38%

Expected term (in years)

 

0.49

 

0.49

Expected dividend yield

 

None

 

None

Summary of Stock Option Activity

A summary of our stock option activity during the period presented is as follows:

 

 

Time Vesting Options

 

 

Performance Vesting Options

 

 

Total Number of Stock Options

 

 

Weighted-Average Exercise Price

 

Outstanding as of December 31, 2024

 

 

9,137,994

 

 

 

1,897,467

 

 

 

11,035,461

 

 

$

5.70

 

Granted

 

 

-

 

 

 

-

 

 

 

-

 

 

$

-

 

Exercised

 

 

(600,525

)

 

 

(382,625

)

 

 

(983,150

)

 

$

1.73

 

Forfeited

 

 

(128,966

)

 

 

-

 

 

 

(128,966

)

 

$

10.15

 

Outstanding as of March 31, 2025

 

 

8,408,503

 

 

 

1,514,842

 

 

 

9,923,345

 

 

$

6.03

 

Options vested or expected to vest as of March 31, 2025

 

 

8,133,351

 

 

 

1,514,842

 

 

 

9,648,193

 

 

$

7.55

 

Options exercisable as of March 31, 2025

 

 

5,358,696

 

 

 

1,514,842

 

 

 

6,873,538

 

 

$

4.69

 

Schedule of Weighted Average Grant Date Fair Value of Stock Options

The number and weighted-average grant date fair value of stock options during the period presented are as follows:

 

 

Number of Stock Options

 

 

Weighted-Average
Grant Date Fair Value

 

 

 

Time Vesting Options

 

 

Performance Vesting Options

 

 

Time Vesting Options

 

 

Performance Vesting Options

 

Non-vested as of December 31, 2024

 

 

3,544,956

 

 

 

 

 

$

4.05

 

 

 

 

Granted

 

 

 

 

 

 

 

$

-

 

 

 

 

Vested

 

 

(418,686

)

 

 

 

 

$

3.57

 

 

 

 

Forfeited

 

 

(76,462

)

 

 

 

 

$

4.61

 

 

 

 

Non-vested as of March 31, 2025

 

 

3,049,808

 

 

 

 

 

$

4.13

 

 

 

 

There were no
Summary of Restricted Stock Activity

A summary of our RSU activity during the period presented is as follows:

 

 

Restricted Stock Units

 

 

Weighted-Average Grant Date Fair Value

 

Unvested as of December 31, 2024

 

 

4,812,481

 

 

$

8.10

 

Granted

 

 

 

 

 

-

 

Vested

 

 

(137,425

)

 

 

9.13

 

Forfeited

 

 

(168,459

)

 

 

7.67

 

Unvested as of March 31, 2025

 

 

4,506,597

 

 

$

8.08

 

There were no
Summary of Stock-Based Compensation Expense

Total stock-based compensation expense, by caption, recorded in the consolidated statements of operations for the periods presented is as follows:

 

 

Three Months Ended March 31,

 

 

 

2025

 

 

2024

 

Cost of labor and chemicals

 

$

2,782

 

 

$

2,473

 

General and administrative

 

 

4,061

 

 

 

3,773

 

Total stock-based compensation expense

 

$

6,843

 

 

$

6,246

 

Total stock-based compensation expense, by award type, recorded in the consolidated statements of operations for the periods presented is as follows:

 

 

Three Months Ended March 31,

 

 

 

2025

 

 

2024

 

Time Vesting Options

 

$

1,863

 

 

$

1,577

 

RSUs

 

 

4,788

 

 

 

4,407

 

2021 ESPP

 

 

192

 

 

 

262

 

Total stock-based compensation expense

 

$

6,843

 

 

$

6,246