| RECONCILIATION OF OPERATING INCOME TO NON-GAAP OPERATING INCOME | |||||||||||||||
| (Unaudited, in thousands) | |||||||||||||||
| Three Months Ended December 31, | Year Ended December 31, | ||||||||||||||
| 2021 | 2020 | 2021 | 2020 | ||||||||||||
| Total operating income | $ | 78,571 | $ | 39,963 | $ | 262,417 | $ | 158,882 | |||||||
| Adjustments to reconcile total operating income to non-GAAP total operating income: | |||||||||||||||
| Stock-based compensation expense | 31,196 | 22,970 | 123,479 | 85,551 | |||||||||||
| Amortization of purchased intangible assets | 33 | - | 44 | - | |||||||||||
| Deferred compensation plan expense | 2,176 | 3,328 | 5,124 | 5,650 | |||||||||||
| Non-GAAP operating income | $ | 111,976 | $ | 66,261 | $ | 391,064 | $ | 250,083 | |||||||
Monolithic Power Systems Announces Results for the Fourth Quarter and Year Ended December 31, 2021 and an Increase in Quarterly Cash Dividend
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