| Schedule of Fair Value, Assets Measured on Recurring Basis |
The following table summarizes cash, cash equivalents and marketable securities by investment category as of June 28, 2025 and September 28, 2024: | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | June 28, 2025 | | | Amortized Cost | | Unrealized Gain | | Unrealized Loss | | Estimated Fair Value | | Cash and Cash Equivalents | | Marketable Securities | | Cash | | $ | 172,644 | | | $ | — | | | $ | — | | | $ | 172,644 | | | $ | 172,644 | | | $ | — | | | Level 1: | | | | | | | | | | | | | | Money market funds | | 28,629 | | | — | | | — | | | 28,629 | | | 28,629 | | | — | | | Subtotal | | 28,629 | | | — | | | — | | | 28,629 | | | 28,629 | | | — | | | Level 2: | | | | | | | | | | | | | | U.S. Treasury securities | | 52,699 | | | 2 | | | (20) | | | 52,681 | | | — | | | 52,681 | | | Subtotal | | 52,699 | | | 2 | | | (20) | | | 52,681 | | | — | | | 52,681 | | | Total | | $ | 253,972 | | | $ | 2 | | | $ | (20) | | | $ | 253,954 | | | $ | 201,273 | | | $ | 52,681 | |
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | September 28, 2024 | | | Amortized Cost | | Unrealized Gain | | Unrealized Loss | | Estimated Fair Value | | Cash and Cash Equivalents | | Marketable Securities | | Cash | | $ | 144,184 | | | $ | — | | | $ | — | | | $ | 144,184 | | | $ | 144,184 | | | $ | — | | | Level 1: | | | | | | | | | | | | | | Money market funds | | 25,548 | | | — | | | — | | | 25,548 | | | 25,548 | | | — | | | Subtotal | | 25,548 | | | — | | | — | | | 25,548 | | | 25,548 | | | — | | | Level 2: | | | | | | | | | | | | | | U.S. Treasury securities | | 51,304 | | | 122 | | | — | | | 51,426 | | | — | | | 51,426 | | | Subtotal | | 51,304 | | | 122 | | | — | | | 51,426 | | | — | | | 51,426 | | | Total | | $ | 221,036 | | | $ | 122 | | | $ | — | | | $ | 221,158 | | | $ | 169,732 | | | $ | 51,426 | |
|