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

7. Stock-Based Compensation

The Company uses the Black-Scholes option pricing model to calculate the fair value of stock option awards, whether they possess time-based vesting provisions or performance-based vesting provisions, and awards granted under the Vicor Corporation 2017 Employee Stock Purchase Plan (“ESPP”), as of their grant date. Stock-based compensation expense was as follows (in thousands):

 

 

 

Three Months Ended

 

 

Nine Months Ended

 

 

 

September 30,

 

 

September 30,

 

 

 

2026

 

 

2025

 

 

2026

 

 

2025

 

Cost of product revenues

 

$

1,203

 

 

$

1,024

 

 

$

2,936

 

 

$

2,890

 

Selling, general and administrative

 

 

2,655

 

 

 

2,117

 

 

 

6,699

 

 

 

6,101

 

Research and development

 

 

1,483

 

 

 

1,221

 

 

 

3,738

 

 

 

3,429

 

Total stock-based compensation

 

$

5,341

 

 

$

4,362

 

 

$

13,373

 

 

$

12,420

 

 

Compensation expense by type of award was as follows (in thousands):

 

 

 

Three Months Ended

 

 

Nine Months Ended

 

 

 

September 30,

 

 

September 30,

 

 

 

2026

 

 

2025

 

 

2026

 

 

2025

 

Stock options

 

$

4,884

 

 

$

4,035

 

 

$

12,203

 

 

$

11,498

 

ESPP

 

 

457

 

 

 

327

 

 

 

1,170

 

 

 

922

 

Total stock-based compensation

 

$

5,341

 

 

$

4,362

 

 

$

13,373

 

 

$

12,420