| 2024 | Peter and Susan Solomon Family Foundation | 990PF | Trustee | 3 | $0 | $0 | View return |
| 2024 | Riverside Theatre Inc. | 990 | Trustee | 2 | $0 | $0 | View return |
| 2024 | The Lucius N Littauer Foundation Inc | 990PF | Director | 1 | $0 | $0 | View return |
| 2024 | Memorial Sloan-Kettering Cancer Center | 990 | Board Member | 2 | $0 | $0 | View return |
| 2024 | Riverside Theatre Inc. | 990 | Trustee | 2 | $0 | $0 | View return |
| 2023 | The Lucius N Littauer Foundation Inc | 990PF | Director | 1 | $0 | $0 | View return |
| 2023 | American Museum of Natural History | 990 | Trustee | 1 | $0 | $0 | View return |
| 2023 | Manhattan Theatre Club Inc. | 990 | Director | 0.5 | $0 | $0 | View return |
| 2023 | Peter and Susan Solomon Family Foundation | 990PF | Trustee | 3 | $0 | $0 | View return |
| 2022 | Memorial Sloan-Kettering Cancer Center | 990 | See Schedule O | 3 | $0 | $0 | View return |
| 2022 | The Lucius N Littauer Foundation Inc | 990PF | Director | 1 | $0 | $0 | View return |
| 2022 | Memorial Sloan-Kettering Cancer Center | 990 | Board Member | 1 | $0 | $0 | View return |
| 2022 | Manhattan Theatre Club Inc. | 990 | Director | 0.5 | $0 | $0 | View return |
| 2022 | Peter and Susan Solomon Family Foundation | 990PF | Trustee | 3 | $0 | $0 | View return |
| 2022 | American Museum of Natural History | 990 | Trustee | 1 | $0 | $0 | View return |
| 2021 | Peter and Susan Solomon Family Foundation | 990PF | Trustee | 3 | $0 | $0 | View return |
| 2021 | Memorial Sloan-Kettering Cancer Center | 990 | Board Member | 1 | $0 | $0 | View return |
| 2021 | Pegasus Riding Academy for the Handicapped | 990 | Director | 2 | $0 | $0 | View return |
| 2021 | Memorial Sloan-Kettering Cancer Center | 990 | See Schedule O | 3 | $0 | $0 | View return |
| 2021 | The Lucius N Littauer Foundation Inc | 990PF | Director | 0.25 | $0 | $0 | View return |
| 2021 | American Museum of Natural History | 990 | Trustee | 1 | $0 | $0 | View return |
| 2020 | Memorial Sloan-Kettering Cancer Center | 990 | Board Member | 1 | $0 | $0 | View return |
| 2020 | Pegasus Riding Academy for the Handicapped | 990 | Chairman | 3 | $0 | $0 | View return |
| 2020 | The Lucius N Littauer Foundation Inc | 990PF | Director | 0.4 | $0 | $0 | View return |
| 2020 | Memorial Sloan-Kettering Cancer Center | 990 | See Schedule O | 3 | $0 | $0 | View return |
| 2020 | Peter and Susan Solomon Family Foundation | 990PF | Trustee | 3 | $0 | $0 | View return |
| 2020 | The Jeannette R & Sidney L Solomon Foundation | 990 | Trustee | 0 | $0 | $0 | View return |
| 2020 | American Museum of Natural History | 990 | Trustee | 2 | $0 | $0 | View return |
| 2019 | American Friends of the Musee D'Orsay | 990 | Board Member | 0 | $0 | $0 | View return |
| 2019 | The Lucius N Littauer Foundation Inc | 990PF | Director | 0.25 | $0 | $0 | View return |
| 2019 | Memorial Sloan-Kettering Cancer Center | 990 | See Schedule O | 3 | $0 | $0 | View return |
| 2019 | Memorial Sloan-Kettering Cancer Center | 990 | Board Member | 1 | $0 | $0 | View return |
| 2019 | Pegasus Riding Academy for the Handicapped | 990 | Chairman | 3 | $0 | $0 | View return |
| 2019 | American Museum of Natural History | 990 | Trustee | 2 | $0 | $0 | View return |
| 2018 | Pegasus Riding Academy for the Handicapped | 990 | Chairman | 3 | $0 | $0 | View return |
| 2018 | American Friends of the Musee D'Orsay | 990 | Board Member | - | $0 | $0 | View return |
| 2018 | Event Planning Committee Inc | 990EZ | Director | 2 | $0 | $0 | View return |
| 2018 | Memorial Sloan-Kettering Cancer Center | 990 | See Schedule O | 3 | $0 | $0 | View return |
| 2018 | Memorial Sloan-Kettering Cancer Center | 990 | Board Member | 1 | $0 | $0 | View return |
| 2018 | American Museum of Natural History | 990 | Trustee | 2 | $0 | $0 | View return |
| 2017 | Pegasus Riding Academy for the Handicapped | 990 | Chairman | 4 | $0 | $0 | View return |
| 2017 | Memorial Sloan-Kettering Cancer Center | 990 | See Schedule O | 3 | $0 | $0 | View return |
| 2017 | American Friends of the Musee D'Orsay | 990 | Board Member | - | $0 | $0 | View return |
| 2017 | Memorial Sloan-Kettering Cancer Center | 990 | Board Member | 1 | $0 | $0 | View return |
| 2017 | American Museum of Natural History | 990 | Trustee | 2 | $0 | $0 | View return |
| 2016 | Memorial Sloan-Kettering Cancer Center | 990 | See Schedule O | 3 | $0 | $0 | View return |
| 2016 | American Friends of the Musee D'Orsay | 990 | Board Member | - | $0 | $0 | View return |
| 2016 | Pegasus Riding Academy for the Handicapped | 990 | President | 4 | $0 | $0 | View return |
| 2016 | Memorial Sloan-Kettering Cancer Center | 990 | Board Member | 1 | $0 | $0 | View return |
| 2016 | Alzheimer'S Drug Discovery Foundation | 990 | Gov To 7/25/16 | 1 | $0 | $0 | View return |
| 2016 | American Museum of Natural History | 990 | Trustee | 2 | $0 | $0 | View return |
| 2015 | American Friends of the Musee D'Orsay | 990 | Co-Chair | - | $0 | $0 | View return |
| 2015 | Pegasus Riding Academy for the Handicapped | 990 | President | 4 | $0 | $0 | View return |
| 2015 | Memorial Sloan-Kettering Cancer Center | 990 | Board Member | 1 | $0 | $0 | View return |
| 2015 | Alzheimer'S Drug Discovery Foundation | 990 | Governor | 1 | $0 | $0 | View return |
| 2015 | Memorial Sloan-Kettering Cancer Center | 990 | See Schedule O | 3 | $0 | $0 | View return |
| 2015 | American Museum of Natural History | 990 | Trustee | 2 | $0 | $0 | View return |
| 2015 | Mccallum Theatre Foundation Inc. | 990 | Director | 1.5 | $0 | $0 | View return |
| 2015 | Friends of the Cultural Center Inc. | 990 | Trustee | 1 | $0 | $0 | View return |
| 2014 | Memorial Sloan-Kettering Cancer Center | 990 | See Schedule O | 1 | $0 | $0 | View return |
| 2014 | American Friends of the Musee D'Orsay | 990 | Co-Chair | 0 | $0 | $0 | View return |
| 2014 | Alzheimer'S Drug Discovery Foundation | 990 | Governor | 1 | $0 | $0 | View return |
| 2014 | Friends of the Cultural Center Inc. | 990 | Trustee | 1 | $0 | $0 | View return |
| 2014 | Memorial Sloan-Kettering Cancer Center | 990 | Board Member | 1 | $0 | $0 | View return |
| 2014 | Unitarian Universalist House of the Joseph Priestly District | 990 | Secretary | 3 | $0 | $0 | View return |
| 2014 | Mccallum Theatre Foundation Inc. | 990 | Director | 1.5 | $0 | $0 | View return |
| 2014 | American Museum of Natural History | 990 | Trustee | 2 | $0 | $0 | View return |
| 2013 | Unitarian Universalist House of the Joseph Priestly District | 990 | Secretary | 3 | $0 | $0 | View return |
| 2013 | Memorial Sloan-Kettering Cancer Center | 990 | See Schedule O | 1 | $0 | $0 | View return |
| 2013 | Memorial Sloan-Kettering Cancer Center | 990 | Board Member | 1 | - | - | View return |
| 2013 | American Friends of the Musee D'Orsay | 990 | Co-Chair | 0 | $0 | $0 | View return |
| 2013 | Alzheimer'S Drug Discovery Foundation | 990 | Governor | 1 | $0 | $0 | View return |
| 2013 | Manhattan Theatre Club Inc. | 990 | Director | 0.5 | $0 | $0 | View return |
| 2013 | American Museum of Natural History | 990 | Trustee | 3 | - | - | View return |
| 2013 | Mccallum Theatre Foundation Inc. | 990 | Director | 1.5 | $0 | $0 | View return |
| 2013 | Friends of the Cultural Center Inc. | 990 | Trustee | 1 | $0 | $0 | View return |