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EMPLOYEE STOCK PLANS (Tables) | 12 Months Ended
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May 30, 2025
EMPLOYEE STOCK PLANS |
Compensation costs related to the Company's stock-based compensation |
|  | Year Ended |
|  | May 30, |  |  | May 31, |  |  | May 31, |
(In thousands, except per share data) |  | 2025 |  |  | 2024 |  |  | 2023 |
Cost of sales |  | $ | 737 |  |  | $ | 330 |  |  | $ | 331 |
Research and development |  |  | 1,476 |  |  |  | 639 |  |  |  | 706 |
Selling, general and administrative |  |  | 2,949 |  |  |  | 1,549 |  |  |  | 1,711 |
Net effect on net income (loss) |  | $ | 5,162 |  |  | $ | 2,518 |  |  | $ | 2,748 |
Effect on net income (loss) per share: |  |  |  |  |  |  |  |  |  |  |  |
Basic |  | $ | 0.17 |  |  | $ | 0.09 |  |  | $ | 0.10 |
Diluted |  | $ | 0.17 |  |  | $ | 0.09 |  |  | $ | 0.09 |
Stock option and RSU transactions |
(in thousands) |  | Available Shares for Grant |
Balance, May 31, 2022 |  |  | 735 |
Options granted |  |  | (110 | )
RSUs granted |  |  | (674 | )
RSUs cancelled |  |  | 60 |
Options terminated |  |  | 16 |
Balance, May 31, 2023 |  |  | 27 |
Shares issued under 2023 Equity Incentive Plan |  |  | 1,500 |
Shares retired under 2016 Equity Incentive Plan |  |  | (95 | )
Options granted |  |  | (4 | )
RSUs granted |  |  | (221 | )
RSUs cancelled |  |  | 144 |
Options terminated |  |  | 12 |
Balance, May 31, 2024 |  |  | 1,363 |
RSUs granted |  |  | (634 | )
RSUs cancelled |  |  | 70 |
Options terminated |  |  | 2 |
Balance, May 30, 2025 |  |  | 801 |
Stock option transactions |
|  | Number of Shares |  |  | Weighted Average Exercise Price |  |  | Weighted Average Remaining Contractual Term |  |  | Aggregated Intrinsic Value |
|  | (in thousands) |  |  | Per Share |  |  | (In Years) |  |  | (in thousands) |
Balances, May 31, 2024 |  |  | 702 |  |  | $ | 4.37 |  |  |  | 3.3 |  |  | $ | 5,320 |
Options terminated |  |  | (2 | ) |  |  |  |  |  |  |  |  |  |  |  |
Options exercised |  |  | (55 | ) |  |  |  |  |  |  |  |  |  |  |  |
Balances, May 30, 2025 |  |  | 645 |  |  | $ | 4.47 |  |  |  | 2.3 |  |  | $ | 3,619 |
Options exercisable, May 30, 2025 |  |  | 585 |  |  | $ | 3.85 |  |  |  | 2.1 |  |  | $ | 3,531 |
Options exercisable and expected to vest |  |  | 645 |  |  | $ | 4.47 |  |  |  | 2.3 |  |  | $ | 3,619 |
RSUs, PRSUs, restricted shares and performance restricted shares granted |
|  | Number of Shares |  |  | Weighted Average Grant Date Fair Value |  |  | Weighted Average Remaining Contractual Term |  |  | Aggregate Intrinsic Value |
|  | (in thousands) |  |  | Per Share |  |  | (In Years) |  |  | (in thousands) |
Unvested, May 31, 2024 |  |  | 294 |  |  | $ | 20.08 |  |  |  | 2.3 |  |  | $ | 3,381 |
Granted (1) |  |  | 634 |  |  |  | 14.74 |  |  |  |  |  |  |  |  |
Vested |  |  | (194 | ) |  |  | 15.10 |  |  |  |  |  |  |  |  |
Forfeited (2) |  |  | (70 | ) |  |  | 15.75 |  |  |  |  |  |  |  |  |
Unvested, May 30, 2025 |  |  | 664 |  |  | $ | 16.89 |  |  |  | 2.1 |  |  | $ | 6,330 |
Fair value assumptions for Option Valuation Model |
|  | Year Ended |
|  | May 31, |  |  | May 31, |
|  | 2024 |  |  | 2023 |
Expected term (in years) |  |  | 5 |  |  | 5-6 |
Volatility |  |  | 93 | % |  |  | 86 | %
Risk-free interest rates |  |  | 4.34 | % |  |  | 3.12 | %
Weighted average grant date fair value |  | $ | 36.02 |  |  | $ | 6.29 |
Fair value assumption of the ESPP Purchase Rights |
|  | Year Ended |
|  | May 30, |  |  | May 31, |  |  | May 31, |
|  | 2025 |  |  | 2024 |  |  | 2023 |
Expected term (in years) |  | 0.5 - 2.0 |  |  | 0.5 - 2.0 |  |  | 0.5 - 2.0 |
Volatility |  | 80% - 95% |  |  | 70% - 94% |  |  | 91% - 203% |
Risk-free interest rates |  | 3.61% - 4.36% |  |  | 4.72% - 5.53% |  |  | 3.97% - 4.94% |
Weighted average grant date fair value |  | $ | 2.01 |  |  | $ | 6.30 |  |  | $ | 13.60 |

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