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Non-Controlling Interests (Tables) | 12 Months Ended
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Dec. 31, 2019
Non-Controlling Interests |
Summary of the ownership interest in noncontrolling interest |
|  | December 31, 2019
|  | LLC |  | Ownership
|  | Interests |  | %
Number of LLC Interests held by Tradeweb Markets Inc. |  | 163,341,520 |  | 73.4%
Number of LLC Interests held by non-controlling interests |  | 59,182,155 |  | 26.6%
Total LLC Interests outstanding |  | 222,523,675 |  | 100%
Summary of the impact on equity due to changes in the Company’s ownership interest in noncontrolling interest | The following table summarizes the impact on equity due to changes in the Corporation’s ownership interest in TWM LLC (in thousands):
|  | Successor
|  | Year Ended
|  | December 31,
Net Income Attributable to Tradeweb Markets Inc. and Transfers (to) from the Non-Controlling Interests |  | 2019
Net income attributable to Tradeweb Markets Inc. |  | $ | 83,769
Transfers (to) from non-controlling interests: |  |  |
Allocation of equity to non-controlling interests arising from the reorganization transactions and IPO |  |  | (1,607,529)
Change in non-controlling interests as a result of the October 2019 follow-on offering and other ownership changes |  |  | 402,227
Net transfers (to) from non-controlling interests |  |  | (1,205,302)
Change from net income attributable to Tradeweb Markets Inc. and transfers (to) from non-controlling interests |  | $ | (1,121,533)

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