| 2024 | American Modern Opera Company | 990 | Director | 1 | $0 | $0 | View return |
| 2024 | The Carnegie Hall Corporation | 990 | Trustee | 1 | $0 | $0 | View return |
| 2023 | George London Foundation for Singers Inc. | 990 | Advisory Board | 0.5 | $0 | $0 | View return |
| 2023 | The English Concert in America Inc. | 990 | Director | 1 | $0 | $0 | View return |
| 2023 | The Carnegie Hall Corporation | 990 | Trustee | 1 | $0 | $0 | View return |
| 2023 | The Santa Fe Opera | 990 | Vice President | 5 | $0 | $0 | View return |
| 2022 | The English Concert in America Inc. | 990 | Director | 1 | $0 | $0 | View return |
| 2022 | The Mariinsky Foundation of America Inc. | 990EZ | Director | 0.5 | $0 | $0 | View return |
| 2022 | George London Foundation for Singers Inc. | 990 | Advisory Board | 0.5 | $0 | $0 | View return |
| 2022 | The Santa Fe Opera | 990 | Vice President | 5 | $0 | $0 | View return |
| 2022 | The Carnegie Hall Corporation | 990 | Trustee | 1 | $0 | $0 | View return |
| 2021 | The Mariinsky Foundation of America Inc. | 990 | Co-Chair | 0.5 | $0 | $0 | View return |
| 2021 | George London Foundation for Singers Inc. | 990 | Advisory Board | 0.5 | $0 | $0 | View return |
| 2021 | The English Concert in America Inc. | 990 | Director | 1 | $0 | $0 | View return |
| 2021 | The Carnegie Hall Corporation | 990 | Trustee | 1 | $0 | $0 | View return |
| 2020 | International Women'S Health Coalition | 990 | Vice Chair Until 1/21 | 1 | $0 | $0 | View return |
| 2020 | George London Foundation for Singers Inc. | 990 | Advisory Board | 0.5 | $0 | $0 | View return |
| 2020 | The Mariinsky Foundation of America Inc. | 990 | Co-Chair | 0.5 | $0 | $0 | View return |
| 2020 | The English Concert in America Inc. | 990 | Director | 1 | $0 | $0 | View return |
| 2020 | The Santa Fe Opera | 990 | Vice President | 5 | $0 | $0 | View return |
| 2019 | George London Foundation for Singers Inc. | 990 | Advisory Board | 0.5 | $0 | $0 | View return |
| 2019 | The English Concert in America Inc. | 990 | Director | 1 | $0 | $0 | View return |
| 2019 | International Women'S Health Coalition | 990 | Board Member | 2 | $0 | $0 | View return |
| 2019 | The Carnegie Hall Corporation | 990 | Trustee | 1 | $0 | $0 | View return |
| 2019 | The Santa Fe Opera | 990 | Vice President | 5 | $0 | $0 | View return |
| 2018 | George London Foundation for Singers Inc. | 990 | Advisory Board | 0.5 | $0 | $0 | View return |
| 2018 | The Carnegie Hall Corporation | 990 | Trustee | 1 | $0 | $0 | View return |
| 2018 | Juilliard School | 990 | Trustee | 1 | $0 | $0 | View return |
| 2018 | The Santa Fe Opera | 990 | Vice President | 5 | $0 | $0 | View return |
| 2018 | International Women'S Health Coalition | 990 | Vice Chair | 4 | $0 | $0 | View return |
| 2018 | The English Concert in America Inc. | 990 | Director | 1 | $0 | $0 | View return |
| 2017 | The Carnegie Hall Corporation | 990 | Trustee As Of Merger | 1 | $0 | $0 | View return |
| 2017 | The English Concert in America Inc. | 990 | Director | 1 | $0 | $0 | View return |
| 2017 | Juilliard School | 990 | Trustee | 1 | $0 | $0 | View return |
| 2017 | International Women'S Health Coalition | 990 | Board Member | 5 | $0 | $0 | View return |
| 2017 | The Carnegie Hall Corporation | 990 | Trustee As Of Merger | 1 | $0 | $0 | View return |
| 2016 | George London Foundation for Singers Inc. | 990 | Advisory Board | 0.5 | $0 | $0 | View return |
| 2016 | The English Concert in America Inc. | 990 | Director | 1 | $0 | $0 | View return |
| 2016 | The Santa Fe Opera | 990 | Director | 1 | $0 | $0 | View return |
| 2016 | The Carnegie Hall Society Inc | 990 | Trustee | 1 | $0 | $0 | View return |
| 2016 | International Women'S Health Coalition | 990 | Board Member | 5 | $0 | $0 | View return |
| 2015 | International Women'S Health Coalition | 990 | Board Member | 1 | $0 | $0 | View return |
| 2015 | George London Foundation for Singers Inc. | 990 | Advisory Board | 0.5 | $0 | $0 | View return |
| 2015 | The Carnegie Hall Society Inc | 990 | Trustee | 1 | $0 | $0 | View return |
| 2015 | The Santa Fe Opera | 990 | Director | 1 | $0 | $0 | View return |
| 2014 | San Francisco Chanticleer Inc. | 990 | Trustee | 2 | $0 | $0 | View return |
| 2014 | San Francisco Chanticleer Endowment Foundation | 990EZ | Trustee | 0.5 | $0 | - | View return |
| 2014 | International Women'S Health Coalition | 990 | Board Member | 1 | $0 | $0 | View return |
| 2014 | The Carnegie Hall Society Inc | 990 | Trustee | 1 | $0 | $0 | View return |
| 2014 | The Santa Fe Opera | 990 | Director | 1 | $0 | $0 | View return |
| 2013 | The Santa Fe Opera | 990 | Director | 1 | $0 | $0 | View return |