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Stock-Based Compensation (Tables)
12 Months Ended
Jun. 29, 2025
Share-Based Payment Arrangement [Abstract]  
Schedule of Nonvested Restricted Stock Awards and Restricted Stock Unit Awards Outstanding
A summary of nonvested restricted stock units (RSUs) outstanding as of June 29, 2025 and changes during the year then ended is as follows (shares in thousands):
Number of RSUsWeighted Average Grant-Date Fair Value
Nonvested at June 30, 20243,038 $72.33 
Granted4,879 16.42 
Vested(908)66.59 
Forfeited(2,382)37.85 
Nonvested at June 29, 20254,627 $32.41 
Schedule of Total Stock-Based Compensation Expense
Total stock-based compensation expense was classified in the consolidated statements of operations as follows:
Fiscal Years Ended
(in millions of U.S. Dollars)June 29, 2025June 30, 2024June 25, 2023
Cost of revenue, net$36.9 $28.5 $20.3 
Research and development11.6 11.4 11.2 
Sales, general and administrative24.8 45.0 41.2 
Total stock-based compensation expense$73.3 $84.9 $72.7 
Schedule of Weighted Average Assumptions Utilized to Value Stock-Based Compensation
The range of assumptions used to value stock issued under the ESPP were as follows:
 Fiscal Years Ended
June 29, 2025June 30, 2024June 25, 2023
Risk-free interest rate
4.28 - 5.21%
5.44 - 5.54%
4.57 - 5.06%
Expected life, in years
0.5 - 1.0
0.5 - 1.0
0.5 - 1.0
Volatility
73.7 - 100.2%
73.5 - 74.4%
66.8 - 86.2%
Dividend yield— — — 
The range of assumptions used for performance-based awards with market conditions were as follows:
 Fiscal Years Ended
June 29, 2025June 30, 2024June 25, 2023
Risk-free interest rate
3.92%
 4.52%
2.80%
Expected life, in years
3.0
3.0
3.0
Average volatility of peer companies
67.4%
 65.9%
68.8%
Average correlation coefficient of peer companies
0.41
 0.44
0.48
Dividend yield— — —