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CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands | 9 Months Ended
--- | ---
Oct. 02, 2022 | Oct. 03, 2021
Cash flows from operating activities: |  |
Net income | $ 543,200 | $ 790,549
Adjustments to reconcile net income from operations to net cash provided by operating activities: |  |
Depreciation | 67,902 | 67,866
Stock-based compensation | 37,420 | 34,649
Provision for excess and obsolete inventory | 18,929 | 11,775
Amortization | 15,012 | 27,626
Losses (gains) on investments | 11,436 | (4,750)
Deferred taxes | (28,373) | (10,732)
Contingent consideration fair value adjustments | 0 | (7,227)
Loss on convertible debt conversions | 0 | 25,397
Retirement plan actuarial (gains) losses | 0 | (627)
Other | 740 | 243
Changes in operating assets and liabilities, net of businesses acquired: |  |
Accounts receivable | 4,248 | (103,299)
Inventories | (68,817) | 21,943
Prepayments and other assets | (94,331) | (138,564)
Accounts payable and other liabilities | (71,682) | 65,064
Deferred revenue and customer advances | (5,896) | 8,699
Retirement plans contributions | (3,897) | (4,123)
Income taxes | (31,370) | (17,406)
Net cash provided by operating activities | 394,521 | 767,083
Cash flows from investing activities: |  |
Purchases of property, plant and equipment | (128,672) | (103,162)
Purchases of marketable securities | (267,175) | (509,470)
Proceeds from sales of marketable securities | 259,200 | 209,437
Proceeds from maturities of marketable securities | 182,092 | 571,277
Purchase of investment | 0 | (12,000)
Net cash provided by investing activities | 45,445 | 156,082
Cash flows from financing activities: |  |
Issuance of common stock under stock purchase and stock option plans | 28,733 | 32,590
Repurchase of common stock | (750,000) | (406,180)
Payments related to net settlement of employee stock compensation awards | (32,987) | (32,045)
Payments of convertible debt principal | (52,005) | (301,997)
Dividend payments | (52,578) | (49,711)
Net cash used for financing activities | (858,837) | (757,343)
Effects of exchange rate changes on cash and cash equivalents | 7,418 | (489)
(Decrease) increase in cash and cash equivalents | (411,453) | 165,333
Cash and cash equivalents at beginning of period | 1,122,199 | 914,121
Cash and cash equivalents at end of period | 710,746 | 1,079,454
Non-cash investing activities: |  |
Capital expenditures incurred but not yet paid | $ 2,349 | $ 2,286

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