v3.26.3
Stock-Based Compensation Expense
9 Months Ended
Sep. 30, 2026
Share-Based Payment Arrangement [Abstract]  
Stock-Based Compensation Expense

14. Stock-Based Compensation Expense

Total stock-based compensation expense recognized in the condensed consolidated statements of operations is included in the following categories (in thousands):

 

Three Months
Ended September 30,

 

 

Nine Months
Ended September 30,

 

 

2026

 

 

2025

 

 

2026

 

 

2025

 

Cost of goods sold

$

250

 

 

$

155

 

 

$

796

 

 

$

363

 

Cost of revenue – collaborations and services

 

854

 

 

 

1,027

 

 

 

2,690

 

 

 

2,901

 

Research and development

 

908

 

 

 

319

 

 

 

2,530

 

 

 

1,970

 

Selling, general and administrative

 

4,432

 

 

 

2,817

 

 

 

17,109

 

 

 

11,989

 

Total

$

6,444

 

 

$

4,318

 

 

$

23,125

 

 

$

17,223

 

Total stock-based compensation expense recognized in the condensed consolidated statements of operations was as follows (in thousands):

 

Three Months
Ended September 30,

 

 

Nine Months
Ended September 30,

 

 

2026

 

 

2025

 

 

2026

 

 

2025

 

RSUs and options

$

6,069

 

 

$

4,165

 

 

$

22,188

 

 

$

16,735

 

Employee stock purchase plan

 

375

 

 

 

153

 

 

 

937

 

 

 

488

 

Total

$

6,444

 

 

$

4,318

 

 

$

23,125

 

 

$

17,223

 

The following table summarizes information pertaining to RSUs:

 

 

Number of
Shares

 

 

Weighted
Average
Grant Date
Fair Value
per Share

 

Outstanding as of January 1, 2026

 

 

16,485,829

 

 

$

5.82

 

Granted

 

 

3,651,256

 

 

 

4.79

 

Vested

 

 

(2,963,504

)

 

 

5.86

 

Forfeited

 

 

(1,238,089

)

 

 

5.92

 

Outstanding as of September 30, 2026

 

 

15,935,492

 

 

 

5.56

 

As of September 30, 2026, there was $44.3 million of unrecognized stock-based compensation expense related to RSUs, Market RSUs and Performance RSUs, which is expected to be recognized over a weighted average period of approximately 1.8 years.

The following table summarizes information pertaining to options:

 

 

Number of
Shares

 

 

Weighted
Average Exercise
Price per Share

 

 

Weighted
Average
Remaining
Contractual
Term
(Years)

 

 

Aggregate
Intrinsic
Value ($000)

 

Outstanding as of January 1, 2026

 

 

5,370,220

 

 

$

1.66

 

 

 

2.36

 

 

$

21,522

 

Granted

 

 

7,778,380

 

 

 

2.44

 

 

 

 

 

 

 

Exercised

 

 

(440,281

)

 

 

1.72

 

 

 

 

 

 

 

Forfeited

 

 

(674,711

)

 

 

2.44

 

 

 

 

 

 

 

Expired

 

 

(156,948

)

 

 

3.65

 

 

 

 

 

 

 

Outstanding as of September 30, 2026

 

 

11,876,660

 

 

$

2.10

 

 

 

6.34

 

 

$

21,406

 

Exercisable as of September 30, 2026

 

 

4,767,991

 

 

$

1.59

 

 

 

1.75

 

 

$

11,027

 

The following table summarizes the key assumptions used by the Company to value the stock option awards granted during the nine months ended September 30, 2026. The Company did not grant options during the nine months ended September 30, 2025.

 

 

Nine Months
Ended September 30, 2026

 

Fair value of common stock

 

$

2.44

 

Expected term (years)

 

 

6.50

 

Volatility

 

 

58.51

%

Interest rate

 

 

3.88

%

As of September 30, 2026, there was $8.9 million of unrecognized stock-based compensation expense related to stock options, which is expected to be recognized over a weighted average period of approximately 3.4 years.

Employee Stock Purchase Plan

The Company provides all employees, including executive officers, the ability to purchase common stock at a discount under the ESPP. The ESPP is designed to comply with Section 423 of the Internal Revenue Code and provides all employees with the opportunity to purchase up to $25,000 worth of common stock (based on the undiscounted fair market value at the commencement of the offering period) each year at a purchase price that is the lower of 85% of the fair market value of the common stock on either the date of purchase or the commencement of the offering period. An employee may not purchase more than 5,000 shares of common stock on any purchase date. The executives’ rights under the ESPP are the same as those of all other employees.

There were approximately 1.5 million shares of common stock available for issuance under the ESPP as of September 30, 2026.