v3.26.3
Stock-Based Awards (Tables)
9 Months Ended
Sep. 26, 2026
Stock-Based Awards  
Schedule of common stock options activity

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Weighted-

​

​

Number of

​

Average

​

​

Shares

​

Exercise

​

​

(in thousands)

  ​ ​ ​

Price

Outstanding as of December 27, 2025

​

​

2,699

​

$

0.73

Granted

​

​

—

​

​

—

Exercised

​

​

(518)

​

​

0.66

Expired or forfeited

​

​

(65)

​

​

1.36

Outstanding as of September 26, 2026

​

​

2,116

​

$

0.73

Schedule of restricted stock units

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​

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​

​

​

​

​

​

​

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​

Weighted-

​

​

​

​

​

Average

​

​

Number of

​

Grant-Date

​

​

Shares

​

Fair Value

​

​

(in thousands)

​

per Share

Balance nonvested as of December 27, 2025

​

​

5,420

​

$

1.26

Granted

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​

36,577

​

​

2.35

Vested

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​

(1,090)

​

​

2.63

Forfeited

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​

(93)

​

​

0.91

Balance nonvested as of September 26, 2026

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​

40,814

​

$

2.20

Schedule of share price and revenue tranches

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Stock price goal

Number of RSUs

Minimum service period

Grant-date fair value per RSU

$ 9.00

8,200,000

1 year

$ 2.37

$ 15.00

8,200,000

2 years

$ 2.18

$ 21.00

8,200,000

3 years

$ 2.02

$ 30.00

3,000,000

4 years

$ 2.34

Schedule Of Assumptions Used To Calculate Weighted-Average Grant Date Fair Value Of Common Stock Options Granted

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Grant-date stock price

$ 2.75

Expected volatility

105%

Risk-free interest rate

4.20%

Performance period (years)

5.0 to 8.0

Expected dividend yield

0%

Schedule of stock-based compensation expense

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The following table summarizes the stock-based compensation expense by line item in the condensed consolidated statements of operations (in thousands):

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Three Months Ended

  ​ ​ ​

Nine Months Ended

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​

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September 26,

​

September 27,

​

September 26,

​

September 27,

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2026

​

2025

​

2026

​

2025

Cost of sales

​

​

$

2

​

$

12

​

$

49

​

$

62

Research and development

​

​

​

97

​

​

93

​

​

378

​

​

438

Selling, general and administrative

​

​

​

6,774

​

​

655

​

​

8,211

​

​

2,244

Total

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​

$

6,873

​

$

760

​

$

8,638

​

$

2,744