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UNAUDITED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended | 9 Months Ended
--- | --- | --- | ---
Dec. 26, 2021 | Dec. 27, 2020 | Sep. 27, 2020 | Dec. 26, 2021 | Dec. 27, 2020 | Dec. 26, 2021
Operating activities: |  |  |  |  |  |
Net loss | $ (96.7) | $ (82.7) | $ (184.1) | $ (166.8) | $ (266.8) |
Net loss from discontinued operations | 0.0 | (28.4) |  | 0.0 | (137.2) |
Net loss from continuing operations | (96.7) | (54.3) |  | (166.8) | (129.6) |
Adjustments to reconcile net loss from continuing operations to cash used in operating activities: |  |  |  |  |  |
Depreciation and amortization |  |  |  | 67.5 | 56.2 |
Amortization of debt issuance costs and discount, net of non-cash capitalized interest |  |  |  | 9.0 | 18.1 |
Stock-based compensation |  |  |  | 30.0 | 27.4 |
Loss on extinguishment of debt | 24.8 | 0.0 |  | 24.8 | 0.0 |
Loss on disposal or impairment of long-lived assets |  |  |  | 1.6 | 1.5 |
Amortization of premium/discount on investments |  |  |  | 3.2 | 3.2 |
Realized gain on sale of investments | (0.1) | (0.2) |  | (0.3) | (0.2) |
Gain on equity investment |  |  |  | 0.0 | (7.0) |
Foreign exchange gain on equity investment |  |  |  | 0.0 | (3.2) |
Deferred income taxes |  |  |  | 0.4 | 2.3 |
Changes in operating assets and liabilities: |  |  |  |  |  |
Accounts receivable, net |  |  |  | (14.1) | (9.5) |
Inventories |  |  |  | (41.0) | (21.1) |
Prepaid expenses and other assets |  |  |  | (5.7) | (1.8) |
Accounts payable, trade |  |  |  | 2.8 | 9.9 |
Accrued salaries and wages and other liabilities |  |  |  | (13.3) | 17.9 |
Accrued contract liabilities |  |  |  | 6.9 | 3.8 |
Net cash used in operating activities of continuing operations |  |  |  | (95.0) | (32.1) |
Net cash provided by operating activities of discontinued operations |  |  |  | 0.0 | 6.2 |
Cash used in operating activities |  |  |  | (95.0) | (25.9) |
Investing activities: |  |  |  |  |  |
Purchases of property and equipment |  |  |  | (401.6) | (257.5) |
Purchases of patent and licensing rights |  |  |  | (2.6) | (1.9) |
Proceeds from sale of property and equipment, including insurance proceeds |  |  |  | 2.7 | 0.1 |
Purchases of short-term investments |  |  |  | (29.8) | (85.8) |
Proceeds from maturities of short-term investments |  |  |  | 107.8 | 268.5 |
Proceeds from sale of short-term investments |  |  |  | 189.2 | 24.1 |
Reimbursement of property and equipment purchases from long-term incentive agreement |  |  |  | 50.8 | 0.0 | $ 61.5
Net cash used in investing activities of continuing operations |  |  |  | (83.5) | (52.5) |
Net cash provided by investing activities of discontinued operations |  |  |  | 0.0 | 2.7 |
Cash used in investing activities |  |  |  | (83.5) | (49.8) |
Financing activities: |  |  |  |  |  |
Proceeds from long-term debt borrowings |  |  |  | 20.0 | 0.0 |
Payments on long-term debt borrowings, including finance lease obligations |  |  |  | (20.2) | (0.2) |
Proceeds from issuance of common stock |  |  |  | 11.5 | 39.2 |
Tax withholding on vested equity awards |  |  |  | (25.3) | (24.0) |
Commitment fee on long-term incentive agreement |  |  |  | (1.0) | (0.5) |
Cash (used in) provided by financing activities |  |  |  | (15.0) | 14.5 |
Effects of foreign exchange changes on cash and cash equivalents |  |  |  | (0.1) | 0.5 |
Net change in cash and cash equivalents |  |  |  | (193.6) | (60.7) |
Cash and cash equivalents, beginning of period |  |  | $ 448.8 | 379.0 | 448.8 |
Cash and cash equivalents, end of period | $ 185.4 | $ 388.1 |  | $ 185.4 | $ 388.1 | $ 185.4

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