| 2025 | Warner Music Group Blavatnik Family Foundation Social Justice Fund | 990PF | Member | 0.75 | $0 | $0 | View return |
| 2024 | The Better Angels Society Inc | 990 | Member | 2 | $0 | $0 | View return |
| 2024 | Ronald Mcdonald House of New York Inc | 990 | Director | 1 | $0 | $0 | View return |
| 2024 | Warner Music Group Blavatnik Family Foundation Social Justice Fund | 990PF | Member | 0.75 | $0 | $0 | View return |
| 2023 | The Better Angels Society Inc | 990 | Member | 2 | $0 | $0 | View return |
| 2023 | New York Academy of Sciences | 990 | Governor | 2 | $0 | $0 | View return |
| 2022 | The Better Angels Society Inc | 990 | Member | 2 | $0 | $0 | View return |
| 2022 | New York Academy of Sciences | 990 | Governor | 2 | $0 | $0 | View return |
| 2021 | The Better Angels Society Inc | 990 | Member | 2 | $0 | $0 | View return |
| 2021 | New York Academy of Sciences | 990 | Governor | 2 | $0 | $0 | View return |
| 2021 | Darien Historical Society | 990 | Director | 1 | $0 | $0 | View return |
| 2020 | The Better Angels Society Inc | 990 | Member | 2 | $0 | $0 | View return |
| 2020 | Darien Historical Society | 990 | Director | - | $0 | $0 | View return |
| 2019 | Thanks USA | 990 | Director | 2 | $0 | $0 | View return |
| 2019 | Darien Historical Society | 990 | Director | 1 | $0 | $0 | View return |
| 2018 | Thanks USA | 990 | Director | 2 | $0 | $0 | View return |
| 2018 | Darien Historical Society | 990 | Director | 1 | $0 | $0 | View return |
| 2017 | Albert B Sabin Vaccine Institute Inc | 990 | Vice Chairman | 1 | $0 | $0 | View return |
| 2017 | Institute for Strategic Dialogue-Us | 990 | Vice-Chair & Secretary (Part Yr) | 1 | $0 | $0 | View return |
| 2017 | Thanks USA | 990 | Director | 2 | $0 | $0 | View return |
| 2017 | Darien Historical Society | 990 | Director | 1 | $0 | $0 | View return |
| 2016 | Truman Center for National Policy | 990 | Director | 2 | $0 | $0 | View return |
| 2016 | Institute for Strategic Dialogue-Us | 990 | Vice-Chairperson And Secretary | 1 | $0 | $0 | View return |
| 2016 | Thanks USA | 990 | Director | 2 | $0 | $0 | View return |
| 2016 | Albert B Sabin Vaccine Institute Inc | 990 | Vice Chairman | 1 | $0 | $0 | View return |
| 2016 | Darien Historical Society | 990 | Director | 1 | $0 | $0 | View return |
| 2015 | Institute for Strategic Dialogue-Us | 990 | Vice-Chairperson And Secretary | 1 | $0 | $0 | View return |
| 2015 | Albert B Sabin Vaccine Institute Inc | 990 | Vice Chairman | 1 | $0 | $0 | View return |
| 2015 | Thanks USA | 990 | Director | 2 | $0 | $0 | View return |
| 2014 | Institute for Strategic Dialogue-Us | 990 | Vice-Chairperson And Secretary | 1 | $0 | $0 | View return |
| 2014 | Thanks USA | 990 | Director | 2 | $0 | $0 | View return |
| 2014 | Albert B Sabin Vaccine Institute Inc | 990 | Trustee | 1 | $0 | $0 | View return |
| 2013 | The Connecticut Appleseed Center for Law and Justice Inc | 990 | Director | 1 | $0 | $0 | View return |
| 2013 | Institute for Strategic Dialogue-Us | 990 | Vice-Chairperson And Secretary | 1 | $0 | $0 | View return |
| 2013 | Thanks USA | 990 | Director | 2 | - | - | View return |
| 2013 | Albert B Sabin Vaccine Institute Inc | 990 | Trustee | 1 | $0 | $0 | View return |