(3) Represents the amortization expenses of our intangible assets attributable to the Magillem acquisition.
(4) See table in footnote (4) to the Non-GAAP (Loss) Income from Operations above for breakdown of amortization of acquired intangible assets by line item.
(5) Our GAAP tax provision is primarily related to foreign withholding taxes and income tax in profitable foreign jurisdictions. We maintain a full valuation allowance against our deferred tax assets in the US. Accordingly, there is no significant tax impact associated with these non-GAAP adjustments.
(6) Reflects the aggregate adjustments made to reconcile Non-GAAP Net (Loss) Income to our net loss as noted in the above table, divided by the GAAP diluted weighted average number of shares of the relevant period.
Free Cash Flow
| Three Months Ended December 31, | Twelve Months Ended December 31, | ||||||||||||||
| 2021 | 2020 | 2021 | 2020 | ||||||||||||
| (in thousands) | |||||||||||||||
| Net cash provided by (used in) operating activities | $ | 3,192 | $ | 2,665 | $ | (814 | ) | $ | 2,163 | ||||||
| Less: | |||||||||||||||
| Purchase of property and equipment | (320 | ) | (131 | ) | (808 | ) | (654 | ) | |||||||
| Free cash flow | $ | 2,872 | $ | 2,534 | $ | (1,622 | ) | $ | 1,509 | ||||||
| Net cash used in investing activities | $ | (871 | ) | $ | (4,624 | ) | $ | (1,359 | ) | $ | (5,147 | ) | |||
| Net cash provided by (used in) financing activities | $ | 72,263 | $ | (149 | ) | $ | 76,254 | $ | 790 | ||||||
